Hybrid electric vehicle startup system and control method thereof
A hybrid electric vehicle and starting system technology, applied in engine control, electrical control, fuel injection control, etc., can solve problems such as failure to start normally
Active Publication Date: 2012-05-09
BYD CO LTD
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Problems solved by technology
[0004] In order to overcome the problem that the engine of the existing hybrid electric vehicle cannot be started normally when the motor controller fails, the present invention provides a motor controller that fails to communicate with the EFI controller or the remaining power of the vehicle's power battery is insufficient. Start system and control method for hybrid electric vehicle still capable of normal start
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[0017] In practical applications, only one jog switch 5 is used to control the on-off of the line, which is likely to cause misoperation, which will cause damage to the vehicle system, and even cause accidental personal injury. Therefore, if figure 2 As shown, according to a preferred embodiment of the present invention, the system also includes a safety switch 7, which is connected to the point where the jog switch 5 is electrically connected to the starter 2, the EFI controller 8 and the motor controller 9. circuit, to prevent misoperation, and the other end of the safety switch 7 is connected to the power supply. The safety switch 7 can be any kind of normally open switch, and can be realized by means of a relay, a switch tube, etc. In order to simplify the structure and reduce the cost, it is preferably realized by using an ordinary manual switch, and when the vehicle needs to enter the fuel mode, The safety switch 7 can be closed successively with the jog switch 5 in an...
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The present invention provides a hybrid dynamic automobile startup system which includes a engine (1), a starter (2), a starter control device (6), a EFI controller (8) and a machine controller (9), wherein the engine (1) is mechanically connected with the starter (2); the starter (2), the starter control device (6) and the EFI controller (8) are electrically connected in series, wherein, the system also includes a inching switch (5), wherein the inching switch (5) electrically connects with the starter (2), the EFI controller (8) and the machine controller (9) respectively so as to control on-off of the electric connection between the EFI controller (8) and starter (2). The startup system can force the engine (1) startup in fuel mode through manual startup mode so as to guaranty normal startup of the engine (1) under the fault of the machine controller (9). Furthermore, the present invention also provides a control method of the hybrid dynamic automobile startup system.
Description
technical field [0001] The present invention relates to a starting system and a control method thereof, in particular to a hybrid vehicle engine starting system and a control method thereof. Background technique [0002] As we all know, the whole process of making the engine transition from a static state to a working state is called the starting process of the engine. The device required to complete the boot process is called the boot system. [0003] At present, hybrid vehicles use automatic control to make the vehicle enter the two power modes of fuel or electric power, that is, a starter connected to the crankshaft at the output end of the engine drives the engine to start, so as to realize the starting operation of the vehicle. In the starting process, the motor controller needs to send a starting command to the EFI controller of the vehicle according to the driving demand of the vehicle. After receiving the starting command, the EFI controller controls the starter con...
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IPC IPC(8): F02D41/06
Inventor 蒋荣勋徐超顾运苏伟
Owner BYD CO LTD