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Wheel-side electric driving system with dynamic vibration absorbing function

An electric drive system, wheel edge technology, applied in motion deposition, power devices, steering mechanisms, etc., can solve problems such as interference, improve dynamic performance, inhibit the increase of unsprung mass, and increase flexibility.

Active Publication Date: 2018-07-13
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, since the central axis of the motor is radially close to the central axis of the wheel, interference may occur between the steering knuckle and the trailing arm, between the motor and the damper, and between the motor and the lower control arm

Method used

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  • Wheel-side electric driving system with dynamic vibration absorbing function
  • Wheel-side electric driving system with dynamic vibration absorbing function
  • Wheel-side electric driving system with dynamic vibration absorbing function

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Embodiment Construction

[0023] A feasible implementation of the wheel-side electric drive system with dynamic vibration absorption function of the present application will be described below with reference to the accompanying drawings. It should be pointed out that the drawings provided here are only exemplary, and do not constitute any limitation to the scope of the application. In order to highlight certain features, the various parts in the drawings are not drawn to scale, and some structures are schematically shown with dotted lines, and some structures are omitted and not shown.

[0024] figure 1 , schematically shows a wheel-side electric drive system with a dynamic vibration-absorbing function according to a possible embodiment of the present application. Each drive wheel of the vehicle is equipped with a wheelside electric drive system, in which the output rotational motion and torque of the motor 1 arranged on the side of the wheel close to the drive wheel is transmitted to the wheel throug...

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Abstract

A wheel-side electric driving system comprises a motor (1), a gearbox (2) for transmitting power between the motor (1) and a wheel half axle (5), a steering knuckle (15) and an elastic vibration absorbing element (20). The gearbox (2) is provided with at least two stages of speed change mechanisms, the motor (1) is fixed to a first box part, for supporting the first stage of speed change mechanism, of the gearbox (2); the steering knuckle (15) is used for steering a wheel; the first end of the elastic vibration absorbing element (20) is connected with the steering knuckle (15) through a firstconnecting point, and the second end of the elastic vibration absorbing element (20) is connected with the first box part through a second connecting point, so that the mass of the motor (1) and at least part of the mass of the first box part form dynamic vibration absorbing mass.

Description

technical field [0001] The present application relates to a wheel-side electric drive system with dynamic vibration absorption function, which can be easily combined with the vehicle's conventional suspension system. Background technique [0002] Plug-in electric or hybrid vehicles may include a decentralized electric drive system, enabling individual drive to each wheel. Decentralized electric drive systems include drive in-wheel or wheel-side mounted motors. The advantages of the decentralized electric drive system are short power transmission chain, high transmission efficiency, compact structure and so on. Moreover, each electric drive system can be independently controlled, so that each electric drive system can be quickly adjusted for driving force or braking force, thereby improving vehicle dynamic performance. Additionally, split-controlled drive wheels enable torque vectoring for improved cornering stability. [0003] Large-mass motors are usually installed in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K7/00B60K17/08B62D7/18
CPCB62D7/18B60K7/0007B60K17/08B60K2007/0061
Inventor 陈辛波王威孙浩棋李坚勤朱剑飞王叶枫重松隆史朱福堂董婷婷
Owner ROBERT BOSCH GMBH
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