Safety protection control method of hybrid vehicle
A technology for hybrid electric vehicles and safety protection, which is applied in the direction of hybrid electric vehicles, motor vehicles, program control, etc., to achieve the effect of meeting driving needs
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[0019] Attached below Figure 1-5 The present invention will be specifically described.
[0020] 1) HCU and SCU use the same algorithm to calculate the allowable torque of the engine. HCU sends the calculated result to SCU for comparison. If the difference between the calculated results of HCU and SCU exceeds the allowable error range Δ, it is considered that HCU The algorithm of one of the control units of the SCU is confused, which seriously affects driving safety. At this time, the SCU will report fault 1 (such as figure 1 ) and turn off the inverter, cut off the communication between the HCU and the CAN transceiver, and send a signal to the CAN transceiver to turn on the fault light (such as Figure 5 ).
[0021] 2) The SCU compares the two signals of the bottom switch of the clutch and the two signals of the neutral switch. If the two signals of the same component are different, it is considered that the driving safety is affected (such as figure 2 ). The SCU will r...
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