Four-wheel-drive electric automobile transmission system

Abstract

The invention discloses a four-wheel-drive electric automobile transmission system. The four-wheel-drive electric automobile transmission system comprises a power battery, wherein a first output end of the power battery is connected with a control unit; a second output end of the power battery is connected with a DC / DC converter; an output end of the DC / DC converter is connected with an auxiliary storage battery; an output end of the auxiliary storage battery is connected with the control unit through an ignition switch; an input end of the control unit is further separately connected with a steering wheel angle sensor, an accelerator pedal position sensor, a gear switch, a brake switch and an automobile speed sensor; the steering wheel angle sensor provides the steering wheel rotating direction and angle for the control unit; by the accelerator pedal position sensor, whether the accelerator pedal is trampled or not is determined and a trampling degree signal is provided; the gear switch provides gear information for the control unit; the brake switch provides brake signals for the control unit during braking; the automobile speed sensor provides automobile speed signals for the control unit; and the output end of the control unit is connected with a hub motor and a rear drive motor. Various drive modes including rear drive, four-wheel drive and the like can be realized so as to meet requirements of different road running conditions. Energy can be recycled conveniently, and the economy of an automobile is improved.

Description

technical field [0001] The invention relates to a transmission system of a four-wheel drive electric vehicle. Background technique [0002] Electric vehicles have the advantages of energy saving, environmental protection, and good economy. Existing electric vehicles all have transmission components such as differentials, which make the vehicle transmission structure more complicated, increase the weight of the vehicle, and reduce the transmission efficiency. Existing electric vehicles cannot realize energy recovery and consume high energy consumption. Contents of the invention [0003] The object of the present invention is to provide a four-wheel drive electric vehicle transmission system for the defects in the prior art. [0004] In order to achieve the above object, the present invention adopts the following technical scheme: a transmission system of a four-wheel drive electric vehicle, including a power battery, the first output end of which is connected to the contro...

AI Technical Summary

Problems solved by technology

[0002] Electric vehicles have the advantages of energy saving, environmental protection, and good economy. Existing electric vehicles have transmission components such as differentials, which make the vehicle transmission structure more complicated, increase the weight of the vehicle, and reduce the transmission efficiency.

Existing electric vehicles cannot achieve energy recovery and consume high energy consumption

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