Driving and brake integration system based on wheel hub motor

Abstract

The invention provides a driving and brake integration system based on a wheel hub motor. The driving and brake integration system based on the wheel hub motor comprises a wheel hub motor driving system, an electromagnetism and friction braking system and a finished automobile control system, wherein the wheel hub motor driving system comprises a car axle, a motor stator, a wheel hub, a motor rotor and a brake disc, the motor stator is coaxially welded with the car axle, and the wheel hub is connected with the motor stator via a bearing; the shell of the motor rotor is fixedly connected with the wheel hub; the motor rotor is fixedly connected with the brake disc. According to the driving and brake integration system, the motor rotor is adopted to directly drive the wheel hub, the driving and brake integration system has the advantages of simple structure and high transmission efficiency, the rotation moment and the rotation inertia of an automobile are reduced, the comfort and the safety of the automobile are improved, meanwhile, since an electromagnetic brake system is increased, the use ratio of car energy is effectively improved, braking action time is shortened, and the brake performance and the traffic safety of the finished automobile are improved.

Description

technical field [0001] The invention belongs to the field of vehicle driving and braking integrated systems, in particular to a driving and braking integrated system based on hub motors. Background technique [0002] At present, electric vehicles driven by motors usually use motors to replace internal combustion engines, and use one motor to drive the wheels on the left and right sides through the transmission mechanism. There are clutches, transmissions and other transmission mechanisms. Such a motor drive system needs to consume energy due to the transmission mechanism, so the transmission The efficiency is very low, which is not conducive to the efficient utilization of vehicle energy. At present, most in-wheel motor-driven electric vehicles are rigidly connected between the rotor shaft of the motor and the axle shaft, and a certain current is passed into the stator coil to make the rotor rotate, and the rotating rotor drives the axle to rotate, and the rotating axle driv...

AI Technical Summary

Problems solved by technology

When the car is running at high speed or braking in an emergency, the brake block is directly pressed against the brake disc through the piston. Frequent and long-term braking will cause excessive wear of the brake block and brake disc and overheating of the friction pair, resulting in overheating of the brake. Decline, thus affecting the braking performance of the vehicle or even causing brake failure

Images