• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A vehicle electronics device for K-line multiplexing communication is disclosed. According to the present invention, a communication system of a vehicle in which a K-line communication between a communication circuit and a self-diagnosis apparatus built in each of a plurality of electrical equipments of a vehicle is made according to the ISO9141 communication protocol, wherein the plurality of electrical equipments are performed. The electronic device is provided in any one of the electronic devices, and is connected with the communication circuit according to a self-diagnosis mode from the self-diagnostic device based on the K-line communication protocol and communication information for internal communication between the plurality of electric devices. MC oil generating a switching control signal; On the basis of the contact switching control signal, the contact point is switched to a normal closed state so that communication between the single electrical appliance and the self-diagnostic apparatus is performed in the self-diagnostic mode, and the communication line is pulled up in the internal communication mode between the plurality of electrical appliances. A relay for switching the contact to an open state; And a resistor for maintaining the pull-up in the normally open state of the relay, so that K-LINE communication between a plurality of electronic devices is made without departing from the ISO9141 communication protocol, and thus does not have a separate communication system. It can reduce development period and production cost.
    公开号:KR20020085948A
    申请号:KR1020010025509
    申请日:2001-05-10
    公开日:2002-11-18
    发明作者:지인구
    申请人:씨멘스 오토모티브 주식회사；
    IPC主号:
    专利说明:

    Vehicle installation for K-line multi-communication {AN INSTALLATION FOR K-LINE MULTY COMMUNICATION IN CAR}
    [6] The present invention relates to electrical equipment of a vehicle, and more particularly, to an electronic equipment of a vehicle for K-line multi-communication capable of K-LINE communication between electrical equipment.
    [7] In general, the vehicle's electrical equipment is to make the K-LINE communication with the diagnostic tool (Diagnostic Tool) in accordance with the ISO9141 communication protocol. The self-diagnostic apparatus is used for the after-sales service of the vehicle, and the self-diagnostic apparatus and the electrical equipment for diagnosing are interconnected to inspect the operation state of the electronic equipment. At this time, the K-LINE communication method is used, the communication is made in the communication line pull-up state according to the communication method.
    [8] In recent years, as the number of electronic equipment of a vehicle increases, the operation state of electronic equipment is mutually interchangeable. However, communication based on mutual exchange between electronic devices is in a situation where separate communication equipment between electronic devices is to be installed under the premise that K-LINE should be used.
    [9] Vehicle electronics include EMS, ABS, AirBag, Immobilizer, etc., including ISU (Intelligent Switching Unit), and perform diagnosis of the electronic device through communication with a self-diagnosis device. On the other hand, communication between the electrical equipment is impossible, because each electronic device has a communication circuit, but the communication line for communication is not pulled up. Therefore, when any one of the above electrical equipment is pulled up and used, there is a problem of causing a communication failure state with the self-diagnostic apparatus.
    [10] For this reason, until now, a separate communication line is established between each electronic component, and information exchange is performed between electronic components, causing a cost increase of parts and physical and time damages in installation.
    [11] The present invention was created to solve such a problem, the object of the present invention is to maintain the existing communication protocols, communication communication between the electrical equipment is made, as well as K-line multiple communication to facilitate the connection with the self-diagnostic apparatus To provide a vehicle electronics device for.
    [12] According to an aspect of the present invention for achieving the above object, the electronic device of the vehicle for the K-line multiple communication, the communication between the communication circuit and the self-diagnostic apparatus built in each of a plurality of electrical equipment of the vehicle in accordance with the ISO9141 (ISO9141) communication protocol A communication system of a vehicle in which K-line communication is performed, which is provided in any one of the plurality of electrical appliances and is linked to the communication circuit to the self-diagnostic apparatus based on the K-line communication protocol. An MC for generating a contact switching control signal in accordance with a self-diagnosis mode and a presence or absence of communication information for internal communication between the plurality of electronic devices; On the basis of the contact switching control signal, the contact point is switched to a normal closed state so that communication between the single electrical appliance and the self-diagnostic apparatus is performed in the self-diagnostic mode, and the communication line is pulled up in the internal communication mode between the plurality of electrical appliances. A relay for switching the contact to an open state; And a resistor for maintaining the pull-up in the normally open state of the relay.
    [1] 1 is a configuration diagram for explaining the operation of the present invention.
    [2] <Explanation of symbols for the main parts of the drawings>
    [3] 101: completion device 103: self-diagnostic device
    [4] 105: communication circuit 107: driver
    [5] 109 relay 113 MC
    [13] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
    [14] 1 is a block diagram highlighting the gist of the present invention. First, according to FIG. 1, the self-diagnosis apparatus 103, the main electric appliance 101, and a plurality of electric appliances 104 are configured. The self-diagnostic apparatus 103 and the main electric appliance 101 are connected through a cable connector 113, and the main electric appliance 101 is a contact point of a communication line, including communication between electric appliances and communication with the self-diagnostic apparatus 103. MC (MCU) 113 for controlling the communication circuit, a communication circuit 105 for exchanging communication information according to the K-line protocol on the communication line, a relay 109, a pull-up resistor 111 is provided.
    [15] The pull-up resistor 111 is connected to the normal open (NO) of the relay 109 by receiving battery power, and the normal close (NC) terminal of the relay 109 can be connected to the communication line of the self-diagnosis device 103. As the communication line is connected to the communication circuit 105, the communication line controls the operation of the relay 109 according to the connection between the self-diagnosis apparatus 103 and the main electric appliance 101.
    [16] The common terminal of the relay 109 is connected to enable communication with the built-in communication circuit 105, and is connected to each other to enable communication with the communication circuits of the plurality of electrical appliances 104.
    [17] The operation control of the relay 109 is because the communication line connected to the self-diagnosis device 103 and the normal close terminal NC of the relay 109 is connected to the communication circuit 105 through the common terminal of the relay 109. Accordingly, communication information of the self-diagnosis apparatus 103 is input to the communication circuit 105, and the communication circuit 105 transmits information for communication to the MC oil 113. The MC U 113 determines whether the communication information input through the communication line is a communication for self-diagnosis or communication for internal communication between electronic devices.
    [18] In the case of communication information for self-diagnosis, the relay 109 maintains a normal closed state (NC) through the driver 107, and in the case of an internal communication request between electronic devices, the relay 109 to the driver 107. Provides a control signal to switch the contact point to the normal open terminal NO, and the driver 107 switches the contact point of the relay 109 based on the control signal of the MC oil 113.
    [19] That is, the self-diagnosis apparatus 103 includes a diagnostic circuit, and has a resistance for pulling up a communication line for K-LINE communication. For the self-diagnosis, the main electric appliance 101 is connected to the self-diagnosis device 103 through a cable connector 113, and at this time, the relay 109 maintains a normal closed state (NC) and then the self-diagnosis. The device 103 is to fulfill a communication request to perform a self-diagnostic function with the communication circuit 105.
    [20] Of course, the communication line is maintained in the pull-up state by the pull-up resistor inherent in the self-diagnosis apparatus 103, and the MC-113 is based on the communication request information received through the communication circuit 105, the relay ( The contact of 109 controls to maintain the normal closed state.
    [21] Therefore, the communication line maintains the pull-up state by the self-diagnosis apparatus 103 and performs self-diagnosis of many electrical appliances. As each electric appliance has a respective communication circuit 105, communication with the self-diagnosis apparatus 103 is performed according to the K-LINE protocol based on the unique ID of each electric appliance.
    [22] On the other hand, when the self-diagnostic function is terminated through the self-diagnostic apparatus 103, communication according to the end of the self-diagnosis between the self-diagnostic apparatus 103 and the communication circuit 105 is made based on a protocol. The MC 113 recognizes that the self-diagnosis is completed, and controls the relay 109 through the driver 107 to switch to the normal open state.
    [23] As the relay 109 switches its contact from the normal close terminal to the normal open terminal NO, the resistor 111 pulls up the communication line from the battery power source B. MC-U 113 performs communication between the respective electrical appliances 104 from the pull-up state of the communication line.
    [24] When the resistor 111 and the control circuit 107 including the relay 109 are mounted on any one of a plurality of electrical appliances, and self-diagnosis is not performed, K- with each ID given to each electrical appliance is obtained. Communication between electronic devices is made according to LINE communication protocol.
    [25] For example, communication between electronic devices is to generate result information of whether a key of a vehicle has been received from an immobilizer, detect the state of the engine control device 201 through the result information, and detect an operation state of other electronic devices. . The communication according to the K-LINE communication protocol is possible due to the internally maintained pull-up state in any of the electronic devices.
    [26] As described above, according to the present invention, as the K-LINE communication between the plurality of electrical equipment is made without departing from the ISO9141 communication protocol in which the K-LINE communication between the self-diagnostic apparatus and the plurality of electrical appliances is made, separate communication is performed. By not having a system, the system development time and production cost can be reduced.
    [27] What has been described above is just one embodiment for carrying out the electronic device of the vehicle for the K-line multiplex communication according to the present invention, the present invention is not limited to the above embodiment, it is claimed in the claims As will be apparent to those skilled in the art to which the present invention pertains without departing from the gist of the present invention, the technical spirit of the present invention will be described to the extent that various modifications can be made.
    权利要求:
    Claims (1)
    [1" claim-type="Currently amended] In a communication system of a vehicle in which K-LINE communication is performed between a communication circuit built into each of a plurality of electric equipments of a vehicle and a self-diagnostic apparatus according to an IOS9141 (ISO9141) communication protocol,
    Is provided in any one of the plurality of electrical appliances, interlocked with the communication circuit and the self-diagnostic mode from the self-diagnostic apparatus based on the K-line communication protocol and the communication information for the internal communication between the plurality of electrical appliances MC oil for generating a contact switching control signal according to;
    On the basis of the contact switching control signal, the contact point is switched to a normal closed state so that communication between the single electrical appliance and the self-diagnostic apparatus is performed in the self-diagnostic mode, and the communication line is pulled up in the internal communication mode between the plurality of electrical appliances. A relay for switching the contact to an open state; And
    The electrical equipment of a vehicle for k-line multiplex communication, characterized in that the contact of the relay made of a resistor for maintaining a pull-up in the normal open state.
    类似技术:
    公开号 | 公开日 | 专利标题
    US10599604B2|2020-03-24|System and method for controlling bus-networked devices via an open field bus
    KR100390104B1|2003-10-22|Circuitry for function modules which can be fitted in a motor vehicie
    US6151298A|2000-11-21|Electronic bus system
    US3845472A|1974-10-29|Data communication system employing a series loop
    EP1540428B1|2006-10-04|Redundant control unit arrangement
    ES2342543T3|2010-07-08|Signaling device for a safety circuit.
    US4628437A|1986-12-09|Telecontrol system
    CN102334244B|2014-01-01|Plug conversion adapter
    FI113420B|2004-04-15|Intelligent control device for vehicle power distribution
    US6889282B2|2005-05-03|Fieldbus connecting system for actuators or sensors
    KR101076154B1|2011-10-21|- device for a two-wire line terminal
    US7778185B2|2010-08-17|Method for the transmission of data using self-diagnostic pulse width modulation
    KR0176969B1|1999-04-01|System for communication between a master and slave processing units
    KR0175700B1|1999-05-15|Communication system using time division multiplex signal transmission
    KR20100038162A|2010-04-13|Motor control center communication system
    DE69738090T2|2008-05-21|automation equipment
    EP0946917B1|2006-04-05|Electronic bus system
    AT504973B1|2016-12-15|System and method for controlling bus-linked devices through an open fieldbus
    CN1744371B|2010-12-08|Intelligent cell package and method for identifying cell type using same
    US6960918B2|2005-11-01|Method and apparatus for control and fault detection of a remote electrical motor
    ES2245388T3|2006-01-01|Distribution apparatus system.
    DE112011102625B4|2016-08-18|Processing system, processing device and power supply control method
    US7551084B2|2009-06-23|System and method for identifying automation components
    JP2006323831A|2006-11-30|Input device of safety unit
    US7283488B2|2007-10-16|J1850 application specific integrated circuit | and messaging technique
    同族专利:
    公开号 | 公开日
    KR100389970B1|2003-07-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2001-05-10|Application filed by 씨멘스 오토모티브 주식회사
    2001-05-10|Priority to KR10-2001-0025509A
    2002-11-18|Publication of KR20020085948A
    2003-07-04|Application granted
    2003-07-04|Publication of KR100389970B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR10-2001-0025509A|KR100389970B1|2001-05-10|2001-05-10|An installation for k-line multy communication in car|
    [返回顶部]