Electric automobile rear axle assembly with an ABS automatic shifting function

Abstract

The invention provides an electric automobile rear axle assembly with an ABS automatic shifting function, and belongs to the technical field of electric automobiles. According to the electric automobile rear axle assembly, the problems that energy consumption of an existing electric automobile rear axle is high and shifting cannot be conducted automatically are solved. The electric automobile rear axle comprises a decelerator, a differential mechanism and two bridge tubes connected on the differential mechanism. Half shafts penetrate through the bridge tubes, and braking drum plates driven to rotate by the half shafts are arranged at the outer ends of the bridge tubes. The decelerator is composed of an input gear assembly, a shifting gear assembly and an output gear assembly; a shell of the decelerator is connected to a main motor driving the input gear assembly to work, and a shifting motor capable of driving the shifting gear assembly to shift; and the shell of the decelerator is further provided with a speed sensor capable of monitoring the speed of the output gear assembly, signals monitored by the speed sensor are transmitted to a trip computer, and the trip computer sends shifting commands to the shifting motor after analyzing the signals. The electric automobile rear axle assembly with the ABS automatic shifting function has the advantages of high degree of automation, low energy consumption and accurate shifting.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles and relates to a rear axle, in particular to an electric vehicle rear axle assembly with ABS automatic shifting. Background technique [0002] With the dwindling of oil resources and the increasing seriousness of air pollution, new energy vehicles are becoming a development hotspot, especially the development of electric vehicles has become the focus of new energy development. At present, the electric vehicles produced and used are basically not equipped with transmission devices. The reason is that the transmission technology suitable for electric vehicles is immature, so the existing electric vehicles can only use single-stage reducers, which mainly have the following disadvantages: First, the start-up fee Second, there is no power to go uphill at low speed; third, there is no high speed; and fourth, there is no neutral gear, which causes the motor to generate electricity to the contro...

AI Technical Summary

Problems solved by technology

At present, the electric vehicles produced and used are basically not equipped with transmission devices. The reason is that the transmission technology suitable for electric vehicles is immature, so the existing electric vehicles can only use single-stage reducers, which mainly have the following disadvantages: First, the start-up fee The second is that there is no power to go uphill at low speed; the third is that there is no high speed; the fourth is that there is no neutral gear, which causes the motor to generate electricity to the controller when it goes downhill, and it is easy to burn out the controller.

The weight of the welded and formed rear axle housing is too heavy, which leads to high fuel consumption of the car, especially for light electric vehicles.

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