Hybrid car engine start control method and system

2015 
The present invention discloses a hybrid vehicle engine start control method and system, the method comprising: detecting when an engine start command to control the motor rotation of the engine maximum torque drag; when the engine speed reaches the end of the open-loop speed control, closed-loop control motor torque; when the engine speed reaches the target idle rotation speed, fuel injection ignition command sent to the engine controller, so that the engine controller to control the normal operation fuel injection control of the engine ignition operation performed; when the fuel injection time period is greater than or equal to the ignition pre when setting a threshold time period, stopping the motor torque loop control and the motor torque is zero, so that the engine controller controls the normal engine operation, the completion of startup. An effective solution to the above technical solutions of the prior overshoot during startup to bring greater noise and jitter and reduce the comfort of the occupants, and, since the rich control, their emissions when compared to normal operation significantly increased, improved environmental pollution degrees.
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