Electric car wheel edge driving device

A technology for electric vehicle wheels and driving devices, which is applied in the direction of power devices, control devices, motion deposition, etc., can solve the problems of increasing the offset distance from the steering knuckle to the hub bearing, shortening the service life of the hub bearing, and the motor cannot be placed on the wheel, etc., to achieve Effects of avoiding interference, improving motor efficiency, and easy design

Active Publication Date: 2015-07-22
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the motor cannot be placed in the wheel, the suspension, steering gear and shock absorber are not easy to install, and the requirements for the motor housing are high. At

Method used

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  • Electric car wheel edge driving device
  • Electric car wheel edge driving device
  • Electric car wheel edge driving device

Examples

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Example Embodiment

[0026] In this example, if figure 1 As shown, a wheel drive device for an electric vehicle includes a motor 1 and a wheel speed reduction device; in a specific implementation, the motor 1 is a permanent magnet brushless DC motor; and the wheel speed reduction device includes: a sun gear 3, a planetary gear 5, an inner ring gear 6 and planet carrier 4;

[0027] see figure 2 and image 3 , the spokes of the electric vehicle hub 9 are arranged on the inner side of the wheel hub 4, and the motor 2 is arranged inside the electric vehicle wheel hub 9, on the outer side of the spokes, and is fixedly connected to one end of the planetary carrier 4, so that the wheel drive device can be shortened The axial dimension reduces the offset distance from the steering knuckle 8 to the hub bearing 10, prolongs the service life of the hub bearing 10, and effectively avoids the interference of the wheel drive device with the suspension and shock absorber, making the design of the steering sys...

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PUM

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Abstract

The invention discloses an electric car wheel edge driving device. The electric car wheel edge driving device is characterized by comprising a motor and a wheel edge speed reduction device. The motor and the wheel edge speed reduction device are arranged inside a hub. The wheel edge speed reduction device comprises a sun wheel, a planet wheel, an inner gear ring and a planet carrier. The wheel edge speed reduction device is arranged inside a hub supporting piece. The inner gear ring is fixedly arranged inside the hub supporting piece. Due to the fact that the planet carrier is fixed to a steering knuckle, after a motor shaft drives the sun wheel to rotate, the hub supporting piece rotates along with the inner gear ring, and finally the hub supporting piece drives a wheel to rotate. According to the electric car wheel edge driving device, the motor and the wheel edge speed reduction device are integrated into the wheel, the axial size is decreased, and the space inside the wheel is sufficiently utilized, so that interference caused by the motor between a suspension and a steering mechanism during steering is lowered, the service life of a hub bearing is prolonged, and the car driving performance is optimized.

Description

technical field [0001] The invention belongs to the technical field of electric driving of electric vehicles, and in particular relates to a structural design of a wheel-side driving device of an electric vehicle. Background technique [0002] In recent years, my country's electric vehicles have made great progress, and the research on the wheel-side driving devices of electric vehicles is also continuing to deepen. At present, electric vehicles on the market basically adopt the wheel-side drive scheme of "motor + reducer + hub + wheel". The motor and the reducer are integrated and connected to the hub, and the suspension and steering gear are installed on the motor housing. The disadvantage is that the motor cannot be placed in the wheel, the suspension, steering gear and shock absorber are not easy to install, and the requirements for the motor housing are high. At the same time, the axial dimension is large, the turning radius is large, and the offset distance from the ste...

Claims

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Application Information

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IPC IPC(8): B60K7/00B60K17/08
Inventor 陈奇张振程靖邱明明黄守武
Owner HEFEI UNIV OF TECH
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