Parallel start control method and system for hybrid electric vehicle, and hybrid electric vehicle

A parallel start control system for a hybrid electric vehicle, comprising a control device, wherein the control device comprises a memory and a processor, a control program is stored in the memory, and the control program is used to implement a parallel start control method for the hybrid electric vehicle when executed by the processor, wherein the parallel start control method for the hybrid electric vehicle comprises the following steps:

• acquiring current working conditions of a clutch and a gearbox of the hybrid electric vehicle, an engine request torque of the hybrid electric vehicle and a start mode of the hybrid electric vehicle;
• judging whether the hybrid electric vehicle meets an over-heat protection condition according to the current working conditions of the clutch and the gearbox, and determining a start basic torque according to a judging result and the engine request torque;
• determining a start clutch request torque based on the start basic torque according to the start mode of the hybrid electric vehicle;
• and
• conducting start control on the clutch according to the start clutch request torque.

A hybrid electric vehicle, comprising a parallel start control system for the hybrid electric vehicle wherein the parallel start control system comprises a control device, the control device comprises a memory and a processor, a control program is stored in the memory, the control program is used to implement a parallel start control method for the hybrid electric vehicle when executed by the processor, the parallel start control method for the hybrid electric vehicle comprises the following steps:

• acquiring current working conditions of a clutch and a gearbox of the hybrid electric vehicle, an engine request torque of the hybrid electric vehicle and a start mode of the hybrid electric vehicle;
• judging whether the hybrid electric vehicle meets an over-heat protection condition according to the current working conditions of the clutch and the gearbox, and determining a start basic torque according to a judging result and the engine request torque;
• determining a start clutch request torque based on the start basic torque according to the start mode of the hybrid electric vehicle;
• and
• conducting start control on the clutch according to the start clutch request torque.