Saic Motor Corporation Limited

Xiaoguang Deng

Jian Ding

Yuxing Zhou

Jun Sun

Yi Zhao

Pengjun Zhang

Feifei Zhang

A torque distribution method for an engine and a motor of an energy-efficient hybrid electric vehicle comprises the following steps: providing an offline specific fuel consumption map of the engine in all operating states; enabling the engine and motor to respond to the required torque T during travelling together, the motor and the engine working in cooperation at the same rotational speed so as to achieve the optimal working efficiency; acquiring a current state of charge (SOC) of the vehicle battery, and distributing the engine torque T and the motor torque T according to the following situation: if the SOC is greater than a first preset value, entering a first distribution mode; if the SOC is less than a second preset value, enter a second distribution mode; and otherwise, maintaining the current working state. The method can fully utilize the performance advantage of the engine and that of the motor, so that the system works at high efficiency all the time, thereby decreasing the energy consumption of the vehicle, greatly reducing harmful emission, and facilitating energy conservation and environmental protection.

Torque distribution method for engine and motor of energy-efficient hybrid electric vehicle

A hybrid system torque control method and hybrid automobile using same, the method comprising the following steps: (1) analyzing the torque required by a driver; (2) allocating and coordinating the multiple-source torque. The method ensures a consistent driving feel within the range of real-time power source torque capacity, and facilitates hybrid system matching.

Hybrid automobile and power system torque control method thereof

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Shanghai, China

Xiaoguang Deng