Integrated double-cross arm suspension wheel side electric driving system for steering wheel

Abstract

The invention discloses an integrated double-cross arm suspension wheel side electric driving system for a steering wheel. According to the integrated double-cross arm suspension wheel side electric driving system for the steering wheel, a motor shell is fixedly connected with a gearbox shell, and is supported to a vehicle frame through a second elastic hinge to serve as a lower cross arm of a double-cross arm suspension; one end of a connecting rod of the lower cross arm is connected with the gearbox shell through a first rotating hinge; one end of a connecting rod of a steering joint is connected with the steering joint through a third rotating hinge; the connecting rod of the lower cross arm is connected with the connecting rod of the steering joint through a second rotating hinge; one end of an upper cross arm is supported to the vehicle frame through a first elastic hinge; the other end of the upper cross arm is connected with the steering joint through a first spherical hinge; a half-shaft sleeve is machined on the steering joint; a wheel hub is supported to the half-shaft sleeve through a wheel hub bearing; a steering joint arm on the steering joint is connected with a steering tie rod through a second spherical hinge; one end of a universal joint is fixedly connected with the output shaft of a gearbox; the other end of the universal joint is fixedly connected with a half shaft; the half shaft is fixedly connected with the wheel hub; and the wheel hub is fixedly connected a brake rotating piece and a wheel rim. The integrated double-cross arm suspension wheel side electric driving system for the steering wheel has the advantages that the motor shell, the gearbox shell and the lower cross arm of the double-cross arm suspension are integrated, so that the vibration of a motor relative to the vehicle frame is reduced, and the equivalent unsprung weight is light.

Description

technical field [0001] The invention relates to the field of electric vehicle chassis and transmission, in particular to an integrated double wishbone suspension wheel side electric drive system for steering wheels. Background technique [0002] At present, the main structural feature of the wheel-side electric drive system represented by electric wheels is that the drive motor is installed in or near the drive wheel, which has the advantages of short drive transmission chain, efficient transmission, and compact structure. At the same time, the torque of each driving wheel in the wheel drive system can be independently controlled. The wheel motor is not only the information unit of the car, but also the fast-response control execution unit, which is conducive to the realization of high-performance control functions that are difficult to achieve on traditional cars, thereby improving harsh conditions. Driving performance under road conditions. [0003] However, in the genera...

AI Technical Summary

Problems solved by technology

[0003] However, in the general wheel drive system, due to the introduction of drive motors, reducers and other components in the wheel / wheel, the unsprung mass of the vehicle is significantly increased, which directly affects the grounding of the wheel and the ride comfort of the vehicle body.

[0004] Patent 201110053093.0 mentions a structure and method for reducing the equivalent unsprung mass of the single-wishbone suspension wheel side electric drive system, but it is only applicable to non-steering wheels

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