Speed-reducing wheel-rim driving system using motor as power vibration absorber

Abstract

The invention discloses a speed-reducing wheel-rim driving system using a motor as a power vibration absorber. The power is outputted to a small bevel gear by the output shaft of the motor; the small bevel gear is meshed with a large bevel gear, the power is outputted to a semiaxis by the large bevel gear; the section of the semiaxis, which extends into a wheel hub, is provided with an external spline; and the power is transferred to a wheel rim by the wheel hub; the wheel hub, the wheel rim and a rotating element of a braking system are fixedly connected and rotate together; the output shaft of the motor matches with the small bevel gear to transfer power; and the output shaft of the motor slides along the axis of the small bevel gear. The motor is suspended on the wheel, and the motor mass is transferred into the power vibration absorber mass from the unsprung mass. The speed reducing wheel rim driving system has low manufacturing cost and high transmission efficiency and is beneficial to exerting the advantages of high efficiency and large power density of the high-speed motor.

Description

technical field [0001] The invention relates to the field of electric vehicle chassis and transmission, in particular to a reduction wheel drive system in which a motor acts as a dynamic shock absorber. 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 general wheel driv...

AI Technical Summary

Problems solved by technology

However, the traditional dynamic shock absorber method needs to suspend an additional mass block on the wheel, which takes up space and increases the curb weight of the vehicle, thereby reducing the driving mileage

In addition, affected by the above factors, the quality of the installed dynamic vibration absorber should not be too large, so the vibration absorption effect is limited

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