A hydrogen fuel cell control system in the fuel cell electronic vehicle and the control method there

专利摘要:
The present invention relates to a hydrogen fuel control system of a fuel cell electric vehicle and a control method thereof. Hydrogen fuel control method of a fuel cell electric vehicle according to an aspect of the present invention is a hydrogen fuel control method using a hydrogen fuel control system of an electric vehicle using a hydrogen fuel as a power source, by checking the operating state of the hydrogen fuel control system Controlling a hydrogen valve; And counting a counter to control an operation of the fuel cell controller when an abnormal signal is generated from the fuel cell controller. The present invention reduces the frequent stopping of the vehicle due to the occurrence of an abnormal signal of the fuel cell control device while driving the vehicle.
公开号:KR20030009805A
申请号:KR1020010044438
申请日:2001-07-24
公开日:2003-02-05
发明作者:임한승
申请人:현대자동차주식회사；
IPC主号:

专利说明:

HYDROGEN FUEL CELL CONTROL SYSTEM IN THE FUEL CELL ELECTRONIC VEHICLE AND THE CONTROL METHOD THEREOF}
[3] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vehicle, and more particularly, to a hydrogen fuel control system for an electric vehicle using a fuel cell as an energy source and a control method thereof.
[4] In general, automobiles are equipped with batteries for driving starter motors or for supplying electric current required for initial electronics at the initial engine start-up, and the recent development of automobiles has a serious impact on air pollution. A lot of research is being done to develop vehicles with low pollution instead of vehicles that use gasoline or heavy oil as main fuels to obtain the power to drive by explosive power by combustion. A lot of efforts are being made to develop electric vehicles.
[5] Electric vehicles typically use lead-acid batteries, which are secondary batteries, as driving fuel, and are operated by driving a power generator with power output from lead-acid batteries and transmitting them to the drive wheels through the power transmission device to rotate the drive wheels.
[6] Among electric vehicles, researches on electric vehicles using fuel cells as an energy source have been actively conducted. These electric vehicles use liquids such as methanol as fuel and convert them into hydrogen using a device installed in the vehicle, Supply is strong.
[7] Conventionally, in an electric vehicle using a fuel cell as an energy source, an H2CEU (H2 Control Unit) receives a detection signal from a fuel cell controller (FCC) and one or more sensors. The controller checks the status and opens the hydrogen valve to control the MCU (Motor Control Unit), cluster and various relays. At this time, when an abnormal signal is detected from the fuel cell control device, the hydrogen control unit closes the hydrogen valve, restricts the operation of the motor control unit, turns on a warning light, and stops the fuel cell control device from operating.
[8] However, the conventional fuel control method has a problem in that a system stop of the entire electric vehicle occurs because the hydrogen valve is closed and the operation of the fuel cell controller is stopped immediately after the abnormal signal of the fuel cell controller is generated.
[9] In order to solve such a problem, the technical problem to be achieved by the present invention is to reduce the frequent stop of the vehicle caused by the abnormal signal generation of the fuel cell control device while driving the vehicle.
[1] 1 is a block diagram illustrating a hydrogen fuel control system of an electric vehicle according to an exemplary embodiment of the present invention.
[2] 2 is a flowchart illustrating a hydrogen fuel control method of an electric vehicle according to an exemplary embodiment of the present invention.
[10] Hydrogen fuel control system of a fuel cell electric vehicle according to one feature of the present invention for achieving the above object,
[11] As a hydrogen fuel control system of an electric vehicle powered by hydrogen fuel,
[12] A fuel cell controller for controlling power generation by the fuel cell;
[13] A hydrogen control unit which checks whether there is an abnormality from the fuel cell control unit and controls the movement and safety of hydrogen gas, engine start and opening / closing of the hydrogen valve; And
[14] Motor control unit for controlling the driving motor and the vehicle in accordance with the control signal of the hydrogen control unit
[15] It includes.
[16] Hydrogen fuel control method of a fuel cell electric vehicle according to another aspect of the present invention,
[17] In a hydrogen fuel control method using a hydrogen fuel control system of an electric vehicle using hydrogen fuel as a power source,
[18] Controlling a hydrogen valve by checking an operating state of the hydrogen fuel control system;
[19] Controlling an operation of the fuel cell controller by counting a counter when an abnormal signal is generated from a fuel cell controller;
[20] It includes.
[21] DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[22] 1 is a block diagram showing a hydrogen fuel control system according to an embodiment of the present invention.
[23] As shown in FIG. 1, a fuel cell controller 100 for controlling power generation by a fuel cell or fuel cell; A hydrogen control unit 200 for controlling the movement and safety of the hydrogen gas, starting the engine, shutting down; The driver interface 500 and the motor control unit 300 that controls the driving motor and the vehicle are included.
[24] In an embodiment of the present invention, the cluster 400 for displaying a normal and abnormal signal generation state of the vehicle due to the inflow of hydrogen to the user; It is preferable to further include a driver interface 500 which is an interface for transmitting power generated by the operation of the travel motor.
[25] Hereinafter, the operation of the hydrogen fuel control system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
[26] 2 is a flowchart illustrating a hydrogen fuel control method according to an exemplary embodiment of the present invention.
[27] As shown in FIG. 2, the hydrogen control unit 200 receives a signal from the fuel cell controller 100 and various sensors to check the current state of the system (S100), and checks whether the system is in a normal state ( S110).
[28] As a result of the check, if the normal operation state, the hydrogen control unit 200 opens the hydrogen valve (S120). The hydrogen control unit 200 receives a state detection signal from the fuel cell controller 100 and a plurality of sensors to check the current state of the vehicle, and the motor control unit 300 and the cluster 400 and a plurality of operation relays (not shown). Control (S130).
[29] The hydrogen control unit 200 checks whether an abnormal signal EMERGENCY SIGNAL has been generated from the fuel cell controller 100 (S140). If the abnormal signal is generated from the fuel cell controller 100, the hydrogen control unit 200 closes the open hydrogen valve (S150).
[30] The hydrogen control unit 200 increases the counter without stopping the vehicle system immediately after closing the hydrogen valve (S160). As described above, the counter may be counted from a counter generator not shown in the hydrogen control unit 200, and may be included and counted independently in a fuel cell electric vehicle control system, and the present invention is limited only to the embodiment. It is not.
[31] The hydrogen control unit 200 checks whether the counter is greater than or equal to a specific constant K (S170). As such, the reason for closing the hydrogen valve to a certain constant and counting the counter is that the inflow of hydrogen is reduced due to the closing of the hydrogen valve, thereby causing a change in the internal operation of the fuel cell controller 100, thereby causing an abnormal signal of the fuel cell controller 100. Because it can disappear. The specific constant K is calculated within a range that does not cause a fatal failure in the fuel cell controller 100, and the present invention is not limited to the embodiment.
[32] If the counted counter does not become equal to or more than the specific constant K, the hydrogen control unit 200 checks whether the abnormal signal is generated again from the fuel cell controller 100 (S180).
[33] When the abnormal signal is generated again from the fuel cell controller 100, the hydrogen control unit 200 maintains the hydrogen valve in a closed state (S190), and controls the motor control unit 300, the cluster 400, and the plurality of operation relays. Control is continued (S200). The hydrogen control unit 200 outputs an operation stop signal of the fuel cell controller 100 (S210). If the abnormal signal does not occur again from the fuel cell controller 100, the flow returns to the hydrogen valve opening step S120.
[34] In the counter and the specific constant comparison step (S170), if the counted counter is equal to or greater than the specific constant, the hydrogen control unit 200 immediately outputs an operation stop signal of the fuel cell controller 100.
[35] The embodiment of the present invention is only one embodiment, and many variations and modifications may be made to the configuration of the fuel cell electric vehicle control system without departing from the gist of the present invention, as well as the fuel cell control routine. Of course, the stored program can be controlled, and the present invention is not limited to the embodiment.
[36] As described above, the hydrogen fuel control system of the fuel cell electric vehicle of the present invention and the control method thereof reduce frequent stopping of the vehicle due to the occurrence of an abnormal signal of the fuel cell control device while driving the vehicle.

权利要求:
Claims (5)
[1" claim-type="Currently amended] In the hydrogen fuel control system of an electric vehicle powered by hydrogen fuel,
A fuel cell controller for controlling power generation by the fuel cell;
A hydrogen control unit which checks whether there is an abnormality from the fuel cell control unit and controls the movement and safety of hydrogen gas, engine start and opening / closing of the hydrogen valve; And
Motor control unit for controlling the driving motor and the vehicle in accordance with the control signal of the hydrogen control unit
Hydrogen fuel control system of a fuel cell electric vehicle comprising a.
[2" claim-type="Currently amended] In a hydrogen fuel control method using a hydrogen fuel control system of an electric vehicle using hydrogen fuel as a power source,
Controlling a hydrogen valve by checking an operating state of the hydrogen fuel control system;
Controlling an operation of the fuel cell controller by counting a counter when an abnormal signal is generated from a fuel cell controller;
Hydrogen fuel control method of a fuel cell electric vehicle comprising a.
[3" claim-type="Currently amended] The method of claim 2, wherein the hydrogen valve control step
Opening a hydrogen valve if the operating state of the hydrogen fuel control system is normal;
Checking a current state of a vehicle by receiving a state detection signal from the fuel cell controller and at least one sensor and performing operation control;
Checking occurrence of an abnormal signal of the fuel cell controller and closing an open hydrogen valve when an abnormal signal occurs
Hydrogen fuel control method of a fuel cell electric vehicle comprising a.
[4" claim-type="Currently amended] The method of claim 2, wherein the fuel cell controller operation control step
Incrementing a counter after closing the hydrogen valve;
Checking whether the counter is greater than or equal to a specific constant, and if the counted counter is less than or equal to a specific constant, checking whether the abnormal signal is generated again from the fuel cell controller;
Maintaining the hydrogen valve in a closed state when an abnormal signal is generated again from the fuel cell controller;
Stopping the operation of the fuel cell controller by continuously controlling the operation of the fuel cell controller;
Hydrogen fuel control method of a fuel cell electric vehicle comprising a.
[5" claim-type="Currently amended] The method of claim 4, wherein the abnormal signal regeneration check step
And stopping the operation of the fuel cell control unit when the counted counter becomes equal to or greater than the specific constant.

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同族专利:

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公开号 | 公开日

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KR100435669B1|2004-06-12|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2001-07-24|Application filed by 현대자동차주식회사

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2001-07-24|Priority to KR10-2001-0044438A

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2003-02-05|Publication of KR20030009805A

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2004-06-12|Application granted

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2004-06-12|Publication of KR100435669B1

优先权:

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申请号 | 申请日 | 专利标题

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KR10-2001-0044438A|KR100435669B1|2001-07-24|2001-07-24|A hydrogen fuel cell control system in the fuel cell electronic vehicle and the control method thereof|