POWER SYSTEM FOR DUAL-MOTOR-GENERATORS HYBRID ELECTRIC VEHICLE

摘要

A power system, for dual-motor-generators hybrid electric vehicle, includes an engine, motor-­generators, a clutch, a transmission, a power battery, a brake system and an entire vehicle control system. Motor-generators include a main one and an auxiliary one. The rotating shaft of the main motor-generator is connected with the output shaft of the transmission, and the rotating shaft of the auxiliary motor-generator is connected with the crankshaft of the engine. Motor-generators are both linked with the power battery. This power system can realize multi-modes, such as pure motor driving mode, series driving mode, parallel driving mode, hybrid driving mode, engine idling stop mode, and entire car brake energy recovery mode and engine separate driving mode, it also has the auxiliary driving function during gear changing. This power system is simple and low-cost. It can greatly decrease the energy consumption and the exhaust gas emission.