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Double-motor-driving electric vehicle rear axle

A dual-motor drive and electric vehicle technology, applied in the direction of electric power units, power units, vehicle components, etc., can solve the problems of unrealizable space design of the rear axle and easy damage of the motor, so as to achieve convenient and flexible power adjustment and improve output performance , the effect of simple structure

Inactive Publication Date: 2015-04-29
LINZHOU HEXIN CASTING CO LTD
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AI Technical Summary

Problems solved by technology

[0002] In recent years, electric vehicles and electric tricycles have developed rapidly due to their environmental protection performance and low usage fees. The manufacture and demand for the rear axle of electric vehicles have shown a rapid development trend. The rear axle on electric vehicles generally uses a motor to drive the reducer to connect to the differential The motor drives the two semi-shafts on the rear axle to rotate. This kind of rear axle is equipped with a motor, which can basically meet the requirements for the use of small power and low torque, but cannot fully meet the requirements of high power and high torque. Requirements, on the other hand, the motor is easily damaged when the transmitted torque and power are too large. Electric vehicles are also gradually becoming popular in remote mountainous areas. On the mountain roads that often go up and down, the normal and safe driving of electric vehicles requires high power and high torque output characteristics. In order to meet this demand, the traditional method is to increase The power of the driving motor, but generally with the increase of power, its volume will also increase, which will bring space problems to the corresponding rear assembly, so simply increasing the power of the motor cannot fully adapt to the high-power and high-torque output of electric vehicles Development needs, the excessively large volume of the motor brings space problems to the installation of the rear axle, which is basically impossible to realize in the design of some models. In the current market practice, an electric vehicle rear axle capable of outputting high torque and high power is required

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  • Double-motor-driving electric vehicle rear axle

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Embodiment Construction

[0007] In order to better understand and implement the technical solutions of the present invention, some embodiments of the present invention are provided here. These examples are for better explaining the technical solutions of the present invention, and do not constitute any form of limitation to the present invention.

[0008] The rear axle of the electric vehicle is driven by dual motors. Two driving motors are arranged on the rear axle. The power output of the two motors is sent to two independent driving gears, and the two independent driving gears are meshed with the passive gear of the differential. , driving the passive gear at the same time, the two motors are located on the same side or different sides of the differential in the length direction of the rear axle, the outputs of the two motors are connected to the reducer, and the output of the reducer is fixedly connected The driving gear, the driving gear meshes with the driven gear of the differential to drive th...

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Abstract

The invention discloses a double-motor-driving electric vehicle rear axle, and belongs to the technical field of an electric vehicle rear axle. Two driving motors are arranged on the rear axle, the power of the two motors is connected and output to two independent driving gears, the two independent driving gears are respectively engaged with driven gears of a differential mechanism, and meanwhile, the driven gears are driven. The double-motor-driving electric vehicle rear axle has the advantages that the structure is simple, and when the double-motor-driving electric vehicle rear axle is applied onto an electric vehicle rear axle, the output performance of the electric vehicle can be obviously improved, so that the electric vehicle can meet the requirements under the conditions of mountain roads and load carrying.

Description

technical field [0001] The invention relates to an electric vehicle rear axle, in particular to a dual-motor driven electric vehicle rear axle, belonging to the technical field of electric vehicle rear axles. Background technique [0002] In recent years, electric vehicles and electric tricycles have developed rapidly due to their environmental protection performance and low usage fees. The manufacture and demand for the rear axle of electric vehicles have shown a rapid development trend. The rear axle on electric vehicles generally uses a motor to drive the reducer to connect to the differential The motor drives the two semi-shafts on the rear axle to rotate. This kind of rear axle is equipped with a motor, which can basically meet the requirements for the use of small power and low torque, but cannot fully meet the requirements of high power and high torque. Requirements, on the other hand, the motor is easily damaged when the transmitted torque and power are too large. E...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K1/02B60K17/16
Inventor 杨勇
Owner LINZHOU HEXIN CASTING CO LTD
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