Power coupling and transmitting device for hybrid power vehicle

Abstract

The invention discloses a power coupling and transmitting device for a hybrid power vehicle. The device comprises a speed changer-front box body, a motor stator and a motor rotor, and is characterized in that: a torque limited clutch and a one-way clutch are arranged between a flywheel of an engine and the motor rotor; a gear shift clutch is arranged between the motor rotor and the output shaft of a speed changer; the motor rotor is connected with the input shaft of the speed changer in a matching way through the gear shift clutch; the motor rotor, the torque-limited clutch and the gear shift clutch are overlapped in the axial direction and are nested mutually in the radial direction; and the torque limited clutch and the one-way clutch are overlapped in the axial direction and are nested mutually in the radial direction. The device overcomes the disadvantages of large volume and large axial size of a hybrid power assembly, meets the transverse installation requirement on front-engine front wheel drive within limited space, can accurately control a starting torque when an engine is started in pure electric dive, and ensures the comfort of a driver.

Description

technical field [0001] The invention relates to components of a hybrid electric vehicle, in particular to a power coupling and transmission device for a hybrid electric vehicle. Background technique [0002] Existing hybrid vehicles are divided into three types according to the connection mode of the motor and the engine: one is a "series hybrid" vehicle in which only the motor is used to drive the vehicle, and the engine is used to charge the battery; the other is a "series hybrid" vehicle that uses both the motor and the engine as power The "parallel hybrid" vehicle that drives the vehicle; the third is the "series-parallel hybrid" or "hybrid hybrid" vehicle that uses the above two methods. Among them, the "parallel hybrid" vehicle is difficult to arrange horizontally because of its complex structure and large axial dimension. At the same time, starting the engine during pure electric driving requires precise control of the starting torque. Excessive torque will cause a ...

AI Technical Summary

Problems solved by technology

Among them, the "parallel hybrid" vehicle is difficult to arrange horizontally due to its complex structure and large axial dimension.

At the same time, starting the engine during pure electric driving requires precise control of the starting torque. Excessive torque will cause a sharp deceleration of the vehicle and affect driving comfort.

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