Single trailing arm suspension deceleration type wheel electric drive system

A technology of electric drive system and single trailing arm, applied in the direction of suspension, elastic suspension, motion deposition, etc., can solve the problems of low power density, large volume, large mass, etc., and achieve the reduction of unsprung mass and compact structure Conciseness and the effect of improving handling stability

Active Publication Date: 2011-04-13
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-speed inner-rotor motors are small in size, light in weight, low in cost and high in power density, but generally must be decelerated by planetary gear reducers installed inside the wheels to transmit power to the wheels; outer-rotor motors can provide higher torque to directly drive the wheels , the mechanism is simple, but its own volume, mass, and low power density
Therefore, whether it is an electric wheel driven by a high-speed inner rotor or a low-speed outer rotor motor, their unsprung mass is relatively large, and the size and mass of the motor are greatly limited.

Method used

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  • Single trailing arm suspension deceleration type wheel electric drive system
  • Single trailing arm suspension deceleration type wheel electric drive system
  • Single trailing arm suspension deceleration type wheel electric drive system

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Embodiment Construction

[0024] Please refer to the accompanying drawings for a further description of the present invention.

[0025] Such as figure 1 As shown, the present invention uses a gear transmission mode and is equipped with a drum brake as an example. Other transmission modes and systems equipped with disc brakes only need to be slightly modified on this basis, and will not be elaborated here.

[0026] Such as figure 1 As shown, the pinion 5 is installed on the output shaft of the motor through a flat key, and the large gear 12 obtains power by meshing with the pinion 5 . Bull gear 12 is installed on the brake drum 1 by several bolts, and brake drum 1, wheel hub 4 and rim 2 are fixed together by bolts, and bull gear 12 just can drive wheel like this. The inner ring of the hub 4 is supported by the outer ring of the hub bearing 3 , and the inner ring of the hub bearing 3 is supported by the axle 16 and the axle portion of the single trailing arm suspension swing arm 11 . The wheel hub bea...

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Abstract

The invention discloses a single trailing arm suspension deceleration type wheel electric drive system. An A-shaped single trailing arm suspension swing arm is supported at two ends of a motor shaft through a sliding bearing and a sliding bearing cover and is connected with one end of an axle; the other end of the axle is connected with a hub through a hub bearing; the hub, a rim and a brake drumare fixedly connected through a bolt; a pinion wheel is arranged on an output shaft of a motor through a flat key; and a gear wheel is arranged on the brake drum through a plurality of bolts and is engaged with the pinion wheel. The invention has the advantages that: the single trailing arm suspension deceleration type wheel electric drive system is compact and has high transmission efficiency; the driving force of each wheel is independent and controllable to facilitate the operation stability and comfort of vehicles.

Description

technical field [0001] The invention relates to a drive system of an electric vehicle, in particular to a single trailing arm suspension deceleration wheel side electric drive system. Background technique [0002] Electric vehicles can be divided into centralized motor drive form and electric wheel drive form according to different modes of motor drive wheels. The power transmission in the form of centralized motor drive is generally transmitted to the drive wheels through mechanical devices such as reducers, differentials, drive shafts, and universal joints. This type of drive has a complex structure, low transmission efficiency, and cannot achieve independent control of the wheels. [0003] In the electric wheel drive mode, the motor is directly installed on the driving wheel. The driving system and the vehicle have a simple structure and high transmission efficiency. The driving torque of each electric wheel can also be controlled independently, which is conducive to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G3/02B60G7/00B60K7/00
Inventor 陈辛波唐峰熊璐
Owner TONGJI UNIV
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