Integrated single-trailing-arm gear-reducing type electric wheel drive system

A technology of gear reduction and single trailing arm, applied in the direction of electric power device, power device, control device, etc., can solve the problem of complex structure of the wheel side mechanism of the electric wheel, unfavorable vehicle ride comfort and wheel grounding, and large unsprung mass To achieve the effect of improving wheel grounding, reducing unsprung mass and improving ride comfort

Inactive Publication Date: 2014-04-09
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the motor is installed in the driving wheel, the structure of the wheel mechanism of the electric wheel is complicated, and the unsprung mass of the car is large, which is not conducive to the smoothness of the car and the grounding performance of the wheel.

Method used

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  • Integrated single-trailing-arm gear-reducing type electric wheel drive system
  • Integrated single-trailing-arm gear-reducing type electric wheel drive system
  • Integrated single-trailing-arm gear-reducing type electric wheel drive system

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Embodiment Construction

[0018] The present invention mainly includes wheel rim 3, semi-shaft casing 22, wheel hub bearing 23, wheel hub 2, drive shaft 1, rotating shaft 13, driving wheel 11, planetary wheel 16, planetary wheel 5, planetary wheel 18, single longitudinal arm 7, A box Body (9,10), B casing (19,20), motor 12, bearing 8, bearing 14, bearing 15, bearing 6, bearing 4, bearing 17, bearing 21, vehicle frame 24, L-shaped arm 101.

[0019] Attached below figure 1 , figure 2 , image 3 The present invention is further described.

[0020] figure 1 It is a structural schematic diagram of an integrated single trailing arm gear reduction type wheel-side electric drive system. figure 2 for figure 1 Partial side view at A. The motor 12 is bolted to the frame 24 and becomes part of the sprung mass. The driving wheel 11 is installed and supported in the A box body (9, 10) through the bearing 8. A box can rotate around the axis of the motor through the outer ring of the bearing 8 to form a ro...

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Abstract

The invention relates to an integrated single-trailing-arm gear-reducing type electric wheel drive system. A drive motor is fixed on a frame, and assembled with a drive wheel, planet gears, tanks and a single trailing arm to form an integrated structure, so that unsprung mass of an automobile is reduced. Tanks A, tanks B, the single trailing arm and the frame form an articulated four-bar mechanism, when wheels hop up and down under the action of random road excitation, the single trailing arm and the tanks A and B also rotate around respective rotation axes, and by the mechanism, transmission ratio can be ensured unchanged when the center distance between the motor and a driven planet gear changes due to road input excitation. By the novel wheel reduction and transmission mechanism transmitting motor power to the driven planet gear (wheel rim), the transmission ratio between the motor and the driven planet gear can be ensured not to change with the center distance without the help of a constant-speed universal transmission shaft device. The integrated single-trailing-arm gear-reducing type electric wheel drive system has the advantages of simplicity of the wheel reducing mechanism and high transmission efficiency.

Description

technical field [0001] The invention belongs to the field of electric vehicle chassis and transmission, and in particular relates to an integrated single trailing arm gear reduction type wheel side electric drive system. Background technique [0002] With the continuous rise of electric vehicles, a variety of driving forms of electric vehicles have emerged. The wheel-side electric drive system has become a research hotspot due to its simple drive system and vehicle structure, large available space, high transmission efficiency, and independent control of the driving force of each drive wheel, which is conducive to improving driving performance under harsh road conditions. However, since the motor is installed in the driving wheel, the structure of the wheel edge mechanism of the electric wheel is complicated, and the unsprung mass of the car is large, which is not conducive to the smoothness of the car and the grounding performance of the wheel. [0003] In terms of structu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K1/00B60K17/08
Inventor 沈勇陈辛波许乃文刘怡怜王斌
Owner TONGJI UNIV
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