DRIVING SYSTEM FOR HYBRID ELECTRIC VEHICLE

摘要

A driving system for a hybrid electric vehicle comprises an engine (1) and a motor (4) that provide power to a transmission device (5), a generator (2) that receives the power supply from the engine (1) to generate electric power, and a power supply unit (7) electrically connected between the generator (2) and the motor (4), a double-clutch unit (8) which is connected between the engine (1) and the generator (2) as well as between the engine (1) and the transmission device (5), and designed to transfer the power from the engine (1) to the generator (2) or the transmission unit selectively. When the vehicle runs at a low speed, the double-clutch unit (8) is controlled to transfer the power from the engine (1) to the generator (2) to generate electric power, and the motor (4) receives the electric power and outputs dynamic energy to the transmission device (5) to drive the vehicle running, so as to implement the series driving of the hybrid electric vehicle. When the vehicle runs at a high speed, the double-clutch unit (8) is controlled to transfer the power from the engine directly to the transmission device to drive the vehicle running.