A P2 hybrid electric vehicle drive system employing a multi-mode clutch

Abstract

This invention belongs to the field of clutch technology and provides a P2 hybrid electric vehicle drive system with a multi-mode clutch. The system includes an input shaft, a motor rotor support, a multi-mode clutch, and an actuator. The multi-mode clutch includes an inner hub and an outer hub, both of which are annular structures. The inner hub is fitted inside the outer hub and connected to the input housing or the motor rotor support. The outer hub is connected to the motor rotor support or the input housing. A transmission mechanism is provided between the inner and outer hubs to transmit torque from the inner hub to the outer hub or vice versa. The transmission mechanism is connected to the actuator, which locks or disconnects the transmission mechanism, thereby controlling the transmission and interruption of torque between the inner and outer hubs, or between the outer and inner hubs. Compared with existing technologies, the advantages of this invention are: compact structure, small footprint, high torque density, low drag torque, low heat dissipation energy loss, and high efficiency.

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