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    • 专利摘要:
    Power supply apparatus for an electric vehicle having a plurality of secondary cell modules (3). The power supply apparatus includes a branch circuit (8) for the plurality of secondary cell modules. The branch circuit provides a branch selected from a serial branch of the plurality of secondary cell modules and a parallel branch of the plurality of secondary cell modules. The power supply apparatus includes a switching control member (20) for controlling the branch circuit, and a fast charging connector (4) connectable to a fast charger for fast charging of the plurality of secondary cell modules. The switching controller causes the branch circuit to provide parallel branching of the plurality of secondary cell modules in the case where the quick charge connector is connected to the fast charger.
    公开号:FR3060231A1
    申请号:FR1761976
    申请日:2017-12-12
    公开日:2018-06-15
    发明作者:Kenta Suzuki
    申请人:Suzuki Motor Co Ltd；
    IPC主号:
    专利说明:

    (57) Power supply apparatus for an electric vehicle comprising a plurality of secondary cell modules (3). The power supply apparatus includes a branch circuit (8) for the plurality of secondary cell modules. The branch circuit provides a branch selected from a series branch of the plurality of secondary cell modules and a parallel branch of the plurality of secondary cell modules. The power supply apparatus includes a switching controller (20) for controlling the branch circuit, and a quick charge connector (4) connectable to a quick charger for quick charging of the plurality of secondary cell modules. The switching controller causes the branch circuit to provide the parallel branching of the plurality of secondary cell modules in the case where the quick charge connector is connected to the quick charger.
    VEHICLE POWER SUPPLY APPARATUS
    The present invention relates to an energy supply device for electric vehicles.
    JP 2015-122 866 A proposes a technique involving a battery pack capable of changing the interconnection of batteries inside the latter, according to connection patterns comprising a series connection and a parallel connection, and capable of selecting the series connection for rapid charging using a charging voltage greater than that of normal charging using a nominal charging voltage.
    This technique of the prior art is accompanied, during rapid charging, by currents greater than those of normal charging conducted through each of the batteries connected in series in the battery pack.
    Therefore, there are increased flows of heat dissipated from individual batteries, which requires an upgrade of a cooler to cool the battery pack. This leads to increased costs and / or increased planning difficulty.
    An object of the present invention is to provide an energy supply device for an electric vehicle, without increasing costs and without development difficulties.
    According to the present invention, there is provided an energy supply apparatus for an electric vehicle comprising an assembly of a plurality of secondary cell modules for a drive motor, comprising: a connection circuit for the entire plurality of secondary cell modules, the branch circuit being configured to provide a branch selected from a series connection of the plurality of secondary cell modules of the assembly and a parallel branch of the plurality of modules secondary cells of the set; and a switching controller for controlling the branch circuit, the branch circuit being connectable to a fast charger for rapid charging of the entire plurality of secondary cell modules; the switching controller being configured to cause the branch circuit to provide parallel connection of the plurality of secondary cell modules of the assembly in the case where the branch circuit is connected to the fast charger.
    According to the present invention, there is provided an energy supply device without increasing costs and without difficulty in development.
    The present invention will be described in detail below with reference to the accompanying drawings in which:
    Figure 1 is a block diagram showing an essential portion of a vehicle provided with an energy supply apparatus for electric vehicles according to an embodiment of the present invention;
    FIG. 2 is a flowchart showing a series of energy control actions of the power supply apparatus for electric vehicles according to the embodiment of the present invention.
    Disclosed is a power supply apparatus for an electric vehicle comprising a set of a plurality of secondary cell modules for a drive motor. The power supply apparatus includes a connection circuit for all of the plurality of secondary cell modules. The connection circuit is configured to provide a connection selected from a series connection of the plurality of secondary cell modules of the assembly and a parallel connection of the plurality of secondary cell modules of the assembly. The apparatus further comprises a switching control member for controlling the connection circuit. The branch circuit can be connected to a quick charger for quick charging of the entire plurality of secondary cell modules. The switching controller is configured to cause the branch circuit to provide parallel connection of the plurality of secondary cell modules of the assembly in the case where the branch circuit is connected to the fast charger.
    Figure 1 is a block diagram showing a vehicle 1 provided with a drive motor 2 which is a traction motor as a drive source installed in the vehicle 1, and a set of modules 3 secondary cells.
    It should be noted that each of the rectangular blocks in Figure 1 is sometimes supposed to represent an imaginary contour of a corresponding device, to facilitate description, although it is different from a specific contour of the device.
    The vehicle 1 further comprises a connector 4 for rapid charging, a connector 5 for normal charging, a converter 6, an inverter 7, a connection circuit 8, and an ECU (electronic control circuit) 9.
    The drive motor 2 operates as an electric motor to be driven with electrical energy supplied by the set of secondary cell modules 3. The drive motor 2 can also operate as an electric generator to regenerate a electrical energy from the driving force of the vehicle 1, in order to charge the set of secondary cell modules 3.
    Each of the secondary cell modules 3 consists of secondary cells connected in series. Although Figure 1 shows a pair of secondary cell modules 3, there is no limit to the number of secondary cell modules 1 that can be installed in Figure 1. Three or more secondary cell modules 3 can thus be installed in the vehicle 1.
    The fast charging connector 4 can be connected to a "fast charging charger" (which is sometimes referred to below as a "fast charger") for charging the set of secondary cell modules 3. The fast-charging connector 4 has a port or a connection socket provided (for example at a left end of 4 in FIG. 1) for this connection.
    The fast charging connector 4 has a set of connection terminals provided (for example at the top of 4 in FIG. 1) for the transmission and reception of signals between the fast charger and the ECU 9.
    For example, when the rapid charger is connected to the fast charging connector 4, connection signals are transmitted from the rapid charger to the ECU 9 via the associated connection terminals. While the rapid charger is connected to the rapid charging connector 4, control signals, such as charge start and stop control signals, are transmitted from the ECU 9 to the rapid charger via the terminals of associated connection.
    It should be noted that the fast charging connector 4 is provided (for example at the right end of 4 in FIG. 1) with an output circuit for delivering direct current charging energy to the connection circuit 8 and cooperates with this output circuit to constitute a rapid charging circuit.
    The normal charging connector 5 can be connected to a normal charging charger (to which reference is sometimes made hereinafter as "normal charger") for charging the set of secondary cell modules 3. This charger normal is able to supply commercial alternating current energy which is less than that of the rapid charger. It takes longer than a quick charger to charge the set of secondary cell modules 3. The normal charging connector 5 is made up like a household outlet.
    The normal charging connector 5 comprises, at one end (for example at a left end of 5 in FIG. 1) of the latter, a port or a connection socket for connection to the normal charger. The normal charging connector 5 has another end (for example the right end of 5 in Figure 1) which is connected by an AC power output circuit at one end (for example the left end of 6 in FIG. 1) of the converter 6.
    The converter 6 has an AC power input from the normal charger which is connected to the connector 5 for normal charging. The converter 6 is controlled from the ECU 9 to convert the input alternating current energy into direct current energy. This direct current energy is supplied to the connection circuit 8, via a direct current output circuit connected to another end of the converter 6 (for example the right end of 6 in FIG. 1).
    In other words, the normal charger is connected to the connection circuit 8, via a normal charging circuit composed of the connector 5 for normal charging, the AC output circuit, the converter 6 and the circuit direct current output.
    The ECU 9 is able to use a connection signal coming from the normal charging connector 5 or a monitoring signal coming from the converter 6, which is transmitted to it via a signal channel not shown, to determine whether the normal charger is connected to the normal charging circuit, more specifically if the normal charger is connected to connector 5 for normal charging.
    The inverter 7 is connected between the connection circuit 8 and the drive motor 2. The inverter 7 is able to follow the command of the ECU 9 to reverse the DC energy supplied to it by the set of secondary cell modules 3 via the connection circuit 8, in three-phase alternating current energy to be delivered to the drive motor 2. The inverter 7 is further able to follow the command of the 'ECU 9 to convert the regenerated three-phase alternating current energy to and from the drive motor 2 into direct current energy to be supplied via the connection circuit 8 to the set of modules secondary cells 3.
    The connection circuit 8 thus formed comprises: a first switching circuit 10-15 composed of a set of switches (10-15) which is a set of six relay switches 10, 11, 12, 13, 14 and 15 (sometimes referred to below as "10-15 relay"); and a second switching circuit 16-17 composed of a first switch 16 which is a circuit breaker switch, and a second switch 17 which is a selector switch.
    The set of switches (10-15) includes: a first subset constituting a first pair of switches (14, 15); a second subset constituting a second pair of switches (10, 11); and a third subset constituting a third pair of switches (12, 13).
    The first pair of switches (14, 15) consists of relays 14 and 15 which are able to follow a common command from the ECU 9 to establish or break an electrical connection between the set of secondary cell modules 3 and the inverter 7 connected to the drive motor 2.
    The second pair of switches (10, 11) consists of relays 10 and 11 which are capable of following a common command from the ECU 9 to establish or break an electrical connection between the set of secondary cell modules 3 and the circuit quick charge including connector 4 fast charge.
    The third pair of switches (12, 13) consists of relays 12 and 13 which are capable of following a common command from the ECU 9 to establish or break an electrical connection between the set of secondary cell modules 3 and the circuit normal charging system comprising the normal charging connector 5 and the converter 6.
    In other words, the first switching circuit 10-15 comprises: a first end portion thereof involving a part of the first pair of switches (14, 15) (for example ends of external terminals of the relays 14 and 15) connected to the drive motor 2; a second end portion thereof involving a set of nodes connected to the second switching circuit 16-17; a third end portion thereof involving part of the second pair of switches (10, 11) (for example ends of external terminals of relays 10 and 11) connected to the fast charging circuit; and a fourth end portion thereof involving part of the third pair of switches (12, 13) (for example ends of external terminals of relays 12 and 13) connected to the normal charging circuit.
    In the first switching circuit 10-15, the set of nodes constituting the second end portion comprises: a first node as a common anode end node (for example a node connected to a left end of a upper secondary cell module 3 in FIG. 1) connected to a switch (for example the relay 14) of the first pair of switches (14, 15), a switch (for example the relay 10) of the second pair of switches ( 10, 11), and a switch (e.g., relay 12) of the third pair of switches (12, 13); and a second node as a common cathode end node (for example a node connected to a right end of a lower secondary cell module 3 in Figure 1) connected to another switch (for example the relay 15) from the first pair of switches (14, 15), another switch (e.g. relay 11) from the second pair of switches (10, 11), and another switch (e.g. relay 13) from the third pair of switches (12, 13).
    The set of secondary cell modules 3 comprises: a first secondary cell module (for example the upper module 3 in FIG. 1) which comprises a first anode terminal (for example the left terminal of the upper module 3 in the FIG. 1) and a first cathode terminal (for example the right terminal of the upper module 3 in FIG. 1); and a second secondary cell module (for example the lower module 3 in FIG. 1) comprising a second anode terminal (for example the left terminal of the lower module 3 in FIG. 1) and a second cathode terminal (for example the right terminal of the lower module 3 in Figure 1).
    The second switching circuit 16-17 comprises: a first circuit interconnecting the first node (for example the node connected to the left end of the upper module 3 in FIG. 1) and the first anode terminal; a second circuit interconnecting the second node (for example the node connected to the right end of the lower module 3 in FIG. 1) and the second cathode terminal; the first switch 16 as a switch which is provided between a first contact (for example the left contact of the switch 16 in FIG. 1) connected to the first node and a second contact (for example the right contact of the switch 16 in FIG. 1) ) connected to the second anode terminal, and which can be controlled to open and close by the ECU 9; and the second switch as another switch which is provided between a third contact 17a connected to the first cathode terminal and a combination of a fourth contact 17c connected to the second anode terminal and a fifth contact 17b connected to the second node, and which can be controlled by the ECU 9 to select one of a first switching state 17a-17c interconnecting the third contact 17a and the fourth contact 17c and a second switching state 17a -17b interconnecting the third contact 17a and the fifth contact 17.
    The first switch 16 and the second switch 17 are able to follow a common command of the ECU 9, in order to cooperate to connect the secondary cell modules 3 in series or in parallel so that they can be switched.
    When connecting the secondary cell modules 3 in parallel, the ECU 9 operates to put the first switch 16 in a connected state thereof and the second switch 17 in a state thereof interconnecting the contacts 17a and 17b, as shown in Figure 1.
    When connecting the secondary cell modules 3 in series, the ECU 9 operates to put the first contact 16 in a connected state thereof and the second switch 17 in a state thereof interconnecting the contacts 17a and 17c.
    Specifically, the ECU 9 is able to switch the connection state to the connection circuit 8 between: a first connection state in which the secondary cell modules 3 are connected in series with the first switch 16 open, with the second switch 17 selecting the first switching state 17a-17c, to connect to the first switching circuit 10-15; and a second connection state in which the secondary cell modules 3 are connected in parallel with the first switch 16 closed, with the second switch 17 selecting the second switching state 17a-17b, to connect to the first switching circuit 10- 15.
    The ECU 9 is constituted as a computer unit comprising a CPU (central unit), a RAM (random access memory), a ROM (read-only memory), a flash memory, an input port and a port Release.
    The computer unit includes a program stored in the ROM, with various constants and cards, to be used to cause this computer unit to function as an ECU. In other words, at the computer unit, the CPU reads and executes the program stored in the ROM, so that this computer unit is able to function as an ECU 9 according to an associated embodiment of the present invention .
    At the ECU 9, the input port is connected to various sensors comprising a set of sensors for detecting various operating states of the drive motor 2, a connection detection sensor not shown provided at the connector 4 fast charging to detect a state of this connector 4 connected to the rapid charger, a voltage sensor not shown provided at the normal charging connector 5 to detect a state of this connector 5 connected to the normal charger, and a not shown set of sensors state of charge (SOC) which are each capable of detecting a SOC (state of charge) at a corresponding secondary cell module 3.
    At the ECU 9, the output port is connected to various control objects comprising a set of control elements for controlling operating states of the drive motor 2, of the converter 6, of the inverter 7 , and switches 10-17 in connection circuit 8.
    ECU 9 is able to use information from various sensors as the basis for controlling these control objects. For example, the ECU 9 is able to function as a switching control member 20 for controlling electrical connection states to the connection circuit 8.
    (Fast loading)
    The ECU 9 is able, when the rapid charger is connected to the connector for rapid charging, to have at least the relays 10 and 11 (that is to say the second pair of switches) among the relays 10 - 15 set in a connected state of these, the first switch 16 put in a connected state thereof, and the second switch 17 put in a state thereof interconnecting the contacts 17a and 17b (i.e. the second switching state 17a-17b). This means that the ECU 9 is able, when the rapid charger is connected to the rapid charging connector 4, to operate to connect the secondary cell modules 3 in parallel.
    (Normal loading)
    The ECU 9 is capable, when the normal charger is connected to the connector 5 for normal charging, to have at least the relays 12 and 13 (that is to say the third pair of switches) among the relays 10-15 put in a connected state of these, the first switch 16 put in a disconnected state thereof, and the second switch 17 put in a state thereof interconnecting the contacts 17a and 17c (i.e. the first switching state 17a-17c).
    This means that the ECU 9 is able, when the normal charger is connected to the connector 5 for normal charging, to operate to connect the secondary cell modules 3 in series. With the secondary cell modules 3 connected in series, the ECU 9 is able to control the converter 6 for charging the secondary cell modules 3 with electrical energy supplied by the normal charger connected to the normal charging connector 5.
    The ECU 9 is able, during the supply of electrical energy to the drive motor 2 by the secondary cell modules 3, to have at least the relays 14 and 15 (that is to say the first pair of switches) among the relays 10 15 put in a connected state of these, the first switch 16 put in the disconnected state, and the second switch 17 put in the state interconnecting the contacts 17a and 17c (c ' i.e. the first switching state 17a-17c).
    This means that the ECU 9 is able, during the supply of electrical energy to the drive motor 2 by the secondary cell modules 3, to operate to connect the secondary cell modules 3 in series. With the secondary cell modules 3 connected in series, the ECU 9 is capable of controlling the inverter 7, in order to supply electrical energy to the drive motor 2 by the secondary cell modules 3.
    (Regenerated loading energy)
    ECET 9 is able, when loading the secondary cell modules 3 with energy regenerated by the drive motor 2, to have at least the relays 14 and 15 (i.e. the first pair of switches) among the relays 10 15 put in the connected state, the first switch 16 put in the disconnected state, and the second switch 17 put in the state interconnecting the contacts 17a and 17c (i.e. the first switching state 17a-17c).
    This means that the ECET 9 is able, when loading the secondary cell modules 3 with energy regenerated by the drive motor 2, to operate to connect the secondary cell modules 3 in series. With the secondary cell modules 3 connected in series, the ECET 9 is able to control the inverter 7, in order to charge the energy regenerated by the drive motor 2 in the secondary cell modules 3.
    There will be described below a series of energy control actions for each of the power supply devices for electric vehicles according to embodiments configured as described, with reference to an example shown in FIG. 2. A control routine involving the series of energy control actions will be described. This control routine is iterated during the operation of ECET 9.
    It should be noted that, to facilitate the understanding of energy control actions according to embodiments of the present invention, the description mainly relates to the switching of the connection of the secondary cell modules 3.
    In the series of energy control actions, first, in a step SI, the ECET 9 operates to determine if the fast charger is connected to the connector 4 for fast charging. Specifically, the ECET 9 is capable, upon receiving a connection signal from the fast charger, in determining whether the fast charger is connected to the connector 4 for rapid charging. If no connection signal is received from the rapid charger, the ECU 9 determines that the rapid charger is not connected to the fast charging connector 4.
    If it is determined (YES in step SI) that the rapid charger is connected to the connector 4 for rapid charging, the ECU 9 is able to operate to execute a processing in a step S2. If it is determined (NO in step SI) that the fast charger is not connected to the fast charging connector 4, the ECU 9 is able to operate to execute a processing in a step S6.
    In step S2, the ECU 9 operates to connect the secondary cell modules 3 in parallel. Specifically, the ECU 9 operates to have the first switch 16 in the connected state, and the second switch 17 in the interconnecting state of the contacts 17a and 17b (i.e. the second switching state 17a -17b). After the execution of the processing in step S2, the ECU 9 is able to operate to execute a processing in a step S3.
    In step S3, the ECU operates to start fast charging. Specifically, the ECU 9 works to transmit a command signal indicating a start of charging, to the fast charger. After the execution of the processing in step S3, the ECU 9 is able to operate to execute a processing in a step S4.
    [0041] In step S4, the ECU 9 operates to determine if a fast loading stop condition is established. Specifically, the ECU 9 is able to determine that the fast charging stop condition is established, when the SOC sensor detects a SOC at the set of secondary cell modules 3 greater than or equal to a prescribed threshold value, when the fast charger is removed, or when a malfunction of the fast charger is detected.
    When it is determined (NO in step S4) that the fast charging stop condition is not established, the ECU 9 goes to an end of series involved in energy control actions , continuing to charge by the rapid charger. When it is determined (YES in step S4) that the fast loading stop condition is established, the ECU 9 is able to operate to execute processing in a step S5.
    In step S5, the ECU 9 operates to stop rapid charging. Specifically, the ECU 9 works to transmit a control signal indicating a charging stop, to the fast charger. After execution of the processing in step S5, the ECU 9 goes to an implied end of series of energy control actions.
    In step S6, the ECU 9 is able to determine whether the normal charger is connected to the connector 5 for normal charging. Specifically, if the voltage sensor detects a voltage greater than or equal to a prescribed value, the ECU 9 operates to determine that the normal charger is connected to the normal charging connector 5. When a voltage greater than or equal to the prescribed value is not detected, the ECU 9 operates to determine that the normal charger is not connected to the normal charging connector 5.
    When it is determined (YES in step S6) that the normal charger is connected to the connector 5 for normal charging, the ECU 9 is able to operate to execute processing in a step S7. When it is determined (NO in step S6) that the normal charger is not connected to the normal charging connector 5, the ECU 9 is able to operate to execute processing in step S10.
    In step S7, the ECU 9 operates to connect the secondary cell modules 3 in series. Specifically, the ECU 9 operates to have the first switch 16 put in the disconnected state, and the second switch 17 put in the state interconnecting the contacts 17a and 17c (i.e. the first switching state 17a -17c). After the execution of the processing in step S7, the ECU 9 is able to operate to execute a processing in a step S8.
    In step S8, the ECU 9 operates to determine whether a normal loading stop condition is established or not. Specifically, the ECU 9 is able to determine that the normal charging stop condition is established, when the SOC sensor detects a SOC at the set of secondary cell modules 3 which is greater than or equal to a prescribed threshold value , when the normal charger is removed or when a malfunction of the normal charger is detected.
    When it is determined (NO in step S8) that the normal loading stop condition is not established, the ECU 9 goes to an end of series involved in energy control actions , continuing to charge using the normal charger. When it is determined (YES in step S8) that the normal loading stop condition is established, the ECU 9 is able to operate to execute processing in a step S9.
    In step S9, the ECU 9 operates to stop normal loading. Specifically, the ECU 9 operates to deactivate circuit breaker switches at the input and output circuits of the converter 6. It should be noted that, in step S9, the ECU 9 can operate to deactivate at least one of the relay 12 and 13. After the execution of the processing in step S9, the ECU 9 goes to an end of the series involved in energy control actions.
    In step S10, the ECU 9 operates to connect the secondary cell modules 3 in series. Specifically, the ECU 9 operates to have the first switch 16 put in the disconnected state, and the second switch 17 put in the state interconnecting the contacts 17a and 17c (i.e. the first switching state 17a -17c).
    According to embodiments of the present, the processing in step S10 is executed, when the drive motor 2 is supplied with electrical energy by the secondary cell modules 3 or when the secondary cell modules 3 are loaded with l energy regenerated by the drive motor 2. After the execution of the processing in step S10, the ECU 9 passes to an end of series involved in energy control actions.
    According to embodiments of the present, there are provided power supply devices for electric vehicles, each of which is suitable, when a rapid charger is connected to a connector 4 for rapid charging, command a switching state at a connection circuit 8, for connecting secondary cell modules 3 in parallel.
    Consequently, each of the power supply devices for electric vehicles according to embodiments of the present is able to have electrical energy supplied by the fast charger and distributed to the secondary cell modules 3 connected in parallel, which eliminates dissipated heat flows to individual 3 secondary cell modules.
    Each of the power supply devices for electric vehicles according to embodiments of the present is able to have a cooler to cool the secondary cell modules 3, without requiring modernization, which avoids increases costs and layout restrictions.
    In addition, each of the power supply devices for electric vehicles according to embodiments of the present is able to perform rapid charging to have reduced currents led to individual secondary cell modules 3, which allows avoid using specified secondary cell modules for high currents. This reduces costs by selecting the secondary cell modules 3 from a wider range.
    In addition, each of the power supply devices for electric vehicles according to embodiments of the present is suitable, with a normal charger connected to a connector 5 for normal charging, or when a drive motor 2 is supplied by the secondary cell modules 3, to control the switching state at the connection circuit 8, to connect the secondary cell modules 3 in series.
    Consequently, each of the power supply devices for electric vehicles according to embodiments of the present is able to have a reduced charging time for a normal change. In addition, each of the power supply devices for electric vehicles according to embodiments of the present is capable of connecting the secondary cell modules 3 in series, which allows the secondary cell modules 3 connected in series to have greater output voltage. The drive motor 2 and the secondary cell modules 3 thus have extended ranges of currents and voltages.
    It has been described examples of power supply apparatus for electric vehicles according to embodiments of the present, applying to vehicles having a drive motor 2 as a drive source. It should nevertheless be noted that power supply devices for electric vehicles according to embodiments of the present can also be applied to plug-in hybrid vehicles which are vehicles comprising a combustion engine and a drive motor in as sources of training for these.
    As has been described, one aspect of the present invention provides an energy supply apparatus for an electric vehicle comprising an assembly of a plurality of secondary cell modules (3) for a drive motor ( 2). The power supply device comprises: a connection circuit (8) for the whole of the plurality of secondary cell modules (3). The connection circuit (8) is configured to provide a connection selected from a series connection of the plurality of secondary cell modules (3) of the assembly and a parallel connection of the plurality of secondary cell modules (3) from the whole. The power supply apparatus includes a switching control member (20) for controlling the branch circuit (8). The connection circuit (8) can be connected to a rapid charger for rapid charging of the whole of the plurality of secondary cell modules (3). The switching controller (20) is configured to cause the branch circuit (8) to provide parallel connection of the plurality of secondary cell modules (3) of the assembly in the case where the circuit connection (8) is connected to the rapid charger.
    In a second aspect, the connection circuit (8) can be connected to a normal charger for normal loading of the group of the plurality of secondary cell modules (3). Normal charging takes longer than fast charging. In addition, the switching control member (20) causes the connection circuit (8) to provide the series connection of the plurality of secondary cell modules (3) of the assembly in the case where the circuit connection (8) is connected to the normal charger or the whole of the plurality of secondary cell modules (3) supplies the drive motor (2).
    In a third aspect, the connection circuit (8) comprises a first switching circuit (10-15) which can be connected to the rapid charger, and a second switching circuit (16, 17). The second switching circuit (16, 17) is configured to select one of a first connection pattern in which the plurality of secondary cell modules of the assembly (3) are connected in series to the first switching circuit ( 10-15); and a second connection pattern in which the plurality of secondary cell modules of the assembly (3) are connected in parallel to the first switching circuit (10-15). The switching controller (20) causes the second switching circuit (16, 17) to select the second connection pattern in the case where the first switching circuit (10-15) is connected to the fast charger.
    According to a fourth aspect, the first switching circuit (10-15) can be connected to the normal charger for normal charging of the plurality of secondary cell modules of the assembly (3). Normal charging takes longer than fast charging. The switching controller (20) causes the second switching circuit (16, 17) to select the first connection pattern in the case where the first switching circuit (10-15) is connected to the normal charger.
    According to a fifth aspect, the switching control member (20) causes the second switching circuit (16, 17) to select the first connection pattern in the case where the first switching circuit (ΙΟΙ 5) is connected to the normal charger or the entire plurality of secondary cell modules (3) supplies the drive motor (2).
    In a sixth aspect, the switching control member (20) causes the second switching circuit (16, 17) to select the second connection pattern in the case where the first switching circuit (10-15 ) is connected to the rapid charger and to select the first connection reason in the case where the whole of the plurality of secondary cell modules (3) supplies the drive motor (2).
    In a seventh aspect, the first switching circuit (10-15) comprises a first end portion connected to the drive motor (2), and a second end portion connected to one selected from the first branch pattern and the second branch pattern.
    In an eighth aspect, the first switching circuit (10-15) has a third end portion. The power supply apparatus further includes a charging circuit (4) connected to the third end portion of the first switching circuit (10-15), the charging circuit being connectable to the quick charger.
    According to a ninth aspect, the first switching circuit (10-15) has a fourth end portion. The power supply apparatus further includes a second charging circuit connected to the fourth end portion of the first switching circuit (10-15), the second charging circuit being connectable to the normal charger.
    According to a tenth aspect, the first switching circuit (10-15) comprises: a first pair of switches (14, 15) constituting the first end portion; a second pair of switches (10, 11) constituting the third end portion; a third pair of switches (12, 13) constituting the fourth end portion; and a set of knots making up the second end portion. The node assembly includes a first node connected to a switch (14) of the first pair of switches (14, 15), a switch (10) of the second pair of switches (10, 11), and a switch (12 ) of the third pair of switches (12, 13). The set of nodes comprises a second node connected to the other switch (15) of the first pair of switches (14, 15), the other switch (11) of the second pair of switches (10, 11), and the other switch (13) of the third pair of switches (12, 13).
    According to an eleventh aspect, the set of secondary cell modules (3, 3) comprises: a first secondary cell module (for example the upper module 3 in FIG. 1) comprising a first anode terminal (by example the left terminal of the upper module 3 in FIG. 1) and a first cathode terminal (for example the right terminal of the upper module 3 in FIG. 1); and a second secondary cell module (for example the lower module 3 in FIG. 1) comprising a second anode terminal (for example the left terminal of the lower module 3 in FIG. 1) and a second cathode terminal (for example the right terminal of the lower module 3 in Figure 1). The second switching circuit (16, 17) comprises: a first circuit interconnecting the first node (for example the node connected to the left end of the upper module 3 in FIG. 1) and the first anode terminal; a second circuit interconnecting the second node (for example the node connected to the right end of the lower module 3 in FIG. 1) and the second cathode terminal; a switch (16) provided between a first contact (for example the left contact of switch 16 in FIG. 1) connected to the first node and a second contact (for example the right contact of switch 16 in FIG. 1) connected to the second anode terminal; and another switch (17) provided between a third contact (17a) connected to the first cathode terminal and a combination of a fourth contact (17c) connected to the second anode terminal and a fifth contact (17b) connected to the second node, and being able to be put into one selected from a first interconnection state of the third contact (17a) and of the fourth contact (17c) and from a second interconnection state of the third contact (17a) and the fifth contact (17b).
    According to a twelfth aspect, the charging circuit (4) comprises a fast charging connector (4) which can be connected to the fast charger. The fast charging connector (4) is connected to the third end portion of the first switching circuit (10-15).
    According to a thirteenth aspect, the second charging circuit (5, 6) 10 comprises: a normal charging connector (5) which can be connected to the normal charger; and a converter (6). The converter (6) interconnects the normal charging connector (5) and the fourth end portion of the first switching circuit (10-15).
    According to a fourteenth aspect, the power supply apparatus further comprises an inverter (7) interconnecting the drive motor (2) and the first end portion (for example ends of external terminals of switches 14, 15) of the first switching circuit (10-15).
    Although embodiments of the present invention have been described, those skilled in the art can realize that changes can be made without departing from the scope of the present invention.
    权利要求:
    Claims (14)
    [1" id="c-fr-0001]
    1. Power supply apparatus for an electric vehicle comprising a set of a plurality of secondary cell modules (3) for a drive motor (2), characterized in that it comprises:
    a connection circuit (8) for the whole of the plurality of secondary cell modules (3), the connection circuit (8) being configured to provide a connection selected from a series connection of the plurality of secondary cell modules (3) of the assembly and a parallel connection of the plurality of secondary cell modules (3) of the assembly; and a switching controller (20) for controlling the branch circuit (8), the branch circuit (8) being connectable to a rapid charger for rapid charging of the entire plurality of secondary cell modules (3);
    the switching control member (20) being configured to cause the connection circuit (8) to provide the parallel connection of the plurality of secondary cell modules (3) of the assembly in the case where the circuit connection (8) is connected to the rapid charger.
    [2" id="c-fr-0002]
    2. Power supply device according to claim 1, characterized in that the connection circuit (8) can be connected to a normal charger for normal charging of the group of the plurality of secondary cell modules (3), normal charging lasting longer than fast charging; and the switching control member (20) causes the connection circuit (8) to provide the series connection of the plurality of secondary cell modules (3) of the assembly in the case where the connection circuit ( 8) is connected to the normal charger or the whole of the plurality of secondary cell modules (3) supplies the drive motor (2).
    [3" id="c-fr-0003]
    3. Power supply apparatus according to claim 1, characterized in that the connection circuit (8) comprises:
    a first switching circuit (10-15) which can be connected to the rapid charger; and a second switching circuit (16, 17) configured to select one of: a first branching pattern in which the plurality of secondary cell modules of the assembly (3) are connected in series to the first switching circuit ( 10-15); and a second connection pattern in which the plurality of secondary cell modules of the assembly (3) are connected in parallel to the first switching circuit (10-15), and in which the switching control member (20) causes the second switching circuit (16, 17) to select the second connection pattern in the case where the first switching circuit (10-15) is connected to the quick charger.
    [4" id="c-fr-0004]
    4. Power supply apparatus according to claim 3, characterized in that the first switching circuit (10-15) can be connected to the normal charger for normal loading of the plurality of secondary cell modules of the assembly (3), normal charging lasting longer than fast charging; and in which the switching control member (20) causes the second switching circuit (16, 17) to select the first connection pattern in the case in which the first switching circuit (10-15) is connected to the charger normal.
    [5" id="c-fr-0005]
    5. Power supply apparatus according to claim 4, characterized in that the switching control member (20) causes the second switching circuit (16, 17) to select the first connection pattern in the case in which the entire plurality of secondary cell modules (3) powers the drive motor (2).
    [6" id="c-fr-0006]
    6. Power supply apparatus according to claim 3, characterized in that the switching control member (20) causes the second switching circuit (16, 17) to select the first connection pattern in the case in which the entire plurality of secondary cell modules (3) powers the drive motor (2).
    [7" id="c-fr-0007]
    7. Power supply apparatus according to claim 3, characterized in that the first switching circuit (10-15) has a first end portion connected to the drive motor (2), and a second portion d end connected to the selected one of the first branching pattern and the second branching pattern.
    [8" id="c-fr-0008]
    8. Power supply apparatus according to claim 7, characterized in that the first switching circuit (10-15) has a third end portion, and further comprising:
    a charging circuit (4) connected to the third end portion of the first switching circuit (10-15), the charging circuit being able to be connected to the quick charger.
    [9" id="c-fr-0009]
    9. Power supply apparatus according to claim 8, characterized in that the first switching circuit (10-15) has a fourth end portion, and further comprising:
    a second charging circuit connected to the fourth end portion of the first switching circuit (10-15), the second charging circuit being able to be connected to the normal charger.
    [10" id="c-fr-0010]
    10. Power supply apparatus according to claim 9, characterized in that the first switching circuit (10-15) comprises:
    a first pair of switches (14, 15) component the first portion end; a second pair of switches (10, H) component the third portion end; a third pair of switches (12, 13) component the fourth portion
    end; and a set of nodes constituting the second end portion, in which the set of nodes comprises:
    a first node connected to a switch (14) of the first pair of switches (14, 15), a switch (10) of the second pair of switches (10, 11), and a switch (12) of the third pair of switches (12, 13); and a second node connected to the other switch (15) of the first pair of switches (14, 15), the other switch (11) of the second pair of switches (10, 11), and the other switch ( 13) of the third pair of switches (12, 13).
    [11" id="c-fr-0011]
    11. Power supply device according to claim 10, characterized in that the set of the plurality of secondary cell modules (3) comprises:
    a first secondary cell module comprising a first anode terminal and a first cathode terminal; and a second secondary cell module comprising a second anode terminal and a second cathode terminal, and the second switching circuit (16, 17) comprises:
    a first circuit interconnecting the first node and the first anode terminal; a second circuit interconnecting the second node and the second cathode terminal;
    a switch (16) provided between a first contact connected to the first node and a second contact connected to the second anode terminal; and another switch (17) provided between a third contact (17a) connected to the first cathode terminal and a combination of a fourth contact (17c) connected to the second anode terminal and a fifth contact (17b) connected to the second node, and being able to be put into one selected from a first interconnection state of the third contact (17a) and of the fourth contact (17c) and from a second interconnection state of the third contact (17a) and the fifth contact (17b).
    [12" id="c-fr-0012]
    12. Power supply apparatus according to any one of claims 8 to 11, characterized in that the charging circuit comprises a quick charging connector (4) which can be connected to the quick charger, the quick charging connector ( 4) being connected to the third end portion of the first switching circuit (10-15).
    [13" id="c-fr-0013]
    13. An energy supply apparatus according to claim 9 or 12, characterized in that the second charging circuit comprises:
    a normal charging connector (5) which can be connected to the normal charger; and
    5 a converter (6) interconnecting the normal charging connector (5) and the fourth end portion of the first switching circuit (10-15).
    [14" id="c-fr-0014]
    14. An energy supply apparatus according to claim 7, characterized in that it further comprises:
    10 an inverter (7) interconnecting the drive motor (2) and the first end portion of the first switching circuit (10-15).
    1/2
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    同族专利:
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    CN108215880A|2018-06-29|
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    JP2018098892A|2018-06-21|
    JP2021106496A|2021-07-26|
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    法律状态:
    2018-10-30| PLFP| Fee payment|Year of fee payment: 2 |
    2019-11-28| PLFP| Fee payment|Year of fee payment: 3 |
    2020-10-29| PLFP| Fee payment|Year of fee payment: 4 |
    2021-11-19| PLSC| Publication of the preliminary search report|Effective date: 20211119 |
    2021-11-26| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2016240846A|JP2018098892A|2016-12-13|2016-12-13|Power supply device of electric vehicle|
    JP2016240846|2016-12-13|
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