Method and system for controlling engine start of a hybrid electric vehicle
A hybrid electric vehicle and engine technology, applied in hybrid electric vehicles, motor vehicles, transportation and packaging, etc., can solve problems such as power loss, start shock, start failure, etc., to reduce power loss, ensure no delay, and avoid start failure Effect
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Embodiment 1
[0061] Reference manual attached Figure 1 to Figure 7 , the present embodiment provides a hybrid vehicle engine startup control method, the control method can be applied to a DCT-based P2.5 architecture hybrid system, the hybrid system includes an engine 1, two clutches 2, a motor 3. Dual-clutch transmission 4 and vehicle and half shaft assembly 5. When a vehicle with the hybrid power system needs to start the engine during pure electric driving, it can use the clutch 2 on the non-motor shaft to start the engine, or use the motor to start the engine. Clutch 2 on the shaft starts the engine.
[0062] The hybrid electric vehicle engine start control method comprises the following steps:
[0063] Obtain various parameter information of the car, and judge whether the car needs to start the engine according to the parameter information.
[0064] Specifically, the parameter information includes: car accelerator pedal opening, battery power information, vehicle speed information, ...
Embodiment 2
[0122] Reference manual attached Figure 8 , the present embodiment provides a hybrid vehicle engine start control system for implementing the above hybrid vehicle engine start control method, the system includes a detection module, a gearbox controller, an engine controller, a motor controller and a vehicle controller;
[0123] The detection module is electrically connected to the vehicle controller, and the detection module is used to detect the parameter information of the vehicle and send it to the vehicle controller;
[0124] The vehicle controller performs logic operations and judgments according to the received parameter information, and sends control instructions to the gearbox controller, engine controller and motor controller;
[0125] The gearbox controller controls clutch engagement according to the control command sent by the vehicle controller;
[0126] The engine controller controls the fuel injection and ignition of the engine according to the control instruc...
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