Double trailing arm type suspension fork wheel edge drive structure of new-type electric car

A wheel-side drive and electric vehicle technology, applied in the direction of suspension, elastic suspension, motion deposition, etc., can solve the problem of excessive mass under the spring of the electric wheel, achieve large design space, high specific power, and overcome excessive mass Effect

Inactive Publication Date: 2009-01-14
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a new type of double trailing arm suspension wheel side drive for electric vehicles, which has the outstanding advantages of electric wheels and can overcome the shortcomings of excessive unsprung mass of electric wheels

Method used

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  • Double trailing arm type suspension fork wheel edge drive structure of new-type electric car
  • Double trailing arm type suspension fork wheel edge drive structure of new-type electric car
  • Double trailing arm type suspension fork wheel edge drive structure of new-type electric car

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0024] The present invention mainly includes a lower longitudinal arm 1, a motor 2, an upper longitudinal arm 3, a large pulley 4, a small bearing 5, an axle housing 6, a brake caliper mounting plate 7, a brake caliper 8, a hub support 9, a shaft end stop Plate 10, brake disc 12, lock nut 13, hub bearing 14, limit baffle 15, tension wheel horizontal support 16, tension wheel 17, tension wheel vertical support 18, small pulley 19, timing belt 20 , transmission half shaft 21.

[0025] The present invention cleverly also utilizes the kinematic characteristics of the double trailing arm suspension. The characteristic of this suspension is: the upper and lower trailing arms are parallel and equal in length, so together with the kingpin and the connection line between the upper and lower trailing arms and the hinge point of the frame, a parallelogra...

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Abstract

The invention relates to a novel electric motor car double trailing arm type suspended frame wheel side driving structure. A double trailing arm type suspended frame is adopted, the upper trailing arm and the lower trailing arm are parallel and have equal length, thereby the upper trailing arm and the lower trailing arm, a main pin and a connecting wire of the upper trailing arm, the lower trailing arm and a car frame hinged joint are formed into a parallelogram mechanism in the side plan of the car body. Simultaneously, a motor output axle and a wheel axle are respectively installed in the center positions of the both vertical sides of the parallelogram, and during the up and down movement of the suspended frame, the distance between the wheel axle and the motor output axle is always remained unchanged. A motor is directly installed on the car frame, the transmission between the motor and the car wheel is realized through belt transmission or chain transmission, simultaneously the effects of speed reducing and torque increasing are achieved, also a high-speed inner rotor motor is convenient to be adopted to obtain high specific power, and simultaneously the decelerator which is commonly used in the electric wheel of the inner rotor motor is omitted. The structure overcomes the disadvantage of the over weight mass of the electric wheel spring, and simultaneously the motor obtains large design spaces in the structure, installation and arrangement.

Description

technical field [0001] The invention belongs to the field of electric vehicles, and relates to a wheel-side reduction transmission and a related double trailing arm suspension structure. Background technique [0002] Electric vehicles can be divided into centralized motor drive form and electric wheel drive form according to the different ways of motor drive wheels. The power transmission in the form of centralized motor drive generally needs to be 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 the wheels cannot be independently controlled. In the form of electric wheel drive, the motor is directly installed on the drive wheel. The drive system and the vehicle have a simple structure, large available space, and high transmission efficiency. The driving force of each electric wheel is independently controllable, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G3/18B60K7/00
Inventor 陈辛波薛松余磊李丹
Owner TONGJI UNIV
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