Rear wheel independent drive control system and method for electric automobile

An electric vehicle, independent drive technology, applied in the direction of electric vehicles, electric vehicle charging technology, control drive, etc., can solve the restrictions on the application and development of multi-wheel independent drive electric vehicles, and cannot meet the requirements of normal driving of multi-wheel independent drive electric vehicles etc. to achieve the effect of improving handling stability and driving safety

Active Publication Date: 2014-06-25
天津天海轮毂电机科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of research on the key technology of multi-wheel independent drive electric vehicle vehicle control, although there have been many related studies on electronic differential and drive anti-skid, they are often studied as a separate control strategy, and the research on implementing comprehensive control together is more difficult. There are few researches on torque coordination control based

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  • Rear wheel independent drive control system and method for electric automobile
  • Rear wheel independent drive control system and method for electric automobile
  • Rear wheel independent drive control system and method for electric automobile

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Embodiment Construction

[0036] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0037] Such as figure 1As shown, the rear wheel independent drive control system for electric vehicles includes steering wheel angle sensor 1, yaw rate sensor 2, electronic accelerator pedal 3, vehicle drive controller 4, CAN communication network 5, right rear hub motor 6, right The rear hub motor controller 7, the left rear hub motor controller 8, and the left rear hub motor 9; the vehicle drive controller 4 communicates with the steering wheel angle sensor 1, the yaw rate sensor 2, the electronic accelerator pedal 3, Right rear hub motor controller 7, left rear hub motor controller 8 link to each other, right rear hub motor controller 7 links to each other with right rear hub motor 6, left rear hub motor controller 8 links to each other with left...

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Abstract

The invention discloses a rear wheel independent drive control system and method for an electric automobile. The system comprises a steering wheel rotation angle sensor, a yaw velocity sensor, an electronic accelerator pedal, a whole automobile drive controller, a CAN communication network, a rear right hub motor, a rear right hub motor controller, a rear left hub motor controller and a rear left hub motor. The whole automobile drive controller is connected with the steering wheel rotation angle sensor, the yaw velocity sensor, the electronic accelerator pedal, the rear right hub motor controller and the rear left hub motor controller through the CAN communication network. The rear right hub motor controller is connected with the rear right hub motor. The rear left hub motor controller is connected with the rear left hub motor. Electronic differential and drive skid prevention are combined to conduct comprehensive control, the novel integrated drive control method which integrates electronic differential, drive skid prevention and torque coordination control is put forward, operation stability and driving safety are improved when the electric automobile driven by rear wheels independently is under various actual complex working conditions.

Description

technical field [0001] The invention belongs to an electric vehicle drive control system, in particular to a rear wheel independent drive control system and method for an electric vehicle. Background technique [0002] Multi-wheel independent drive pure electric vehicles have many advantages such as improving the power and stability of the whole vehicle. However, due to their high requirements on motor performance and drive control system, they are mostly seen in concept cars or experimental vehicles at present. In terms of research on the key technology of multi-wheel independent drive electric vehicle vehicle control, although there have been many related studies on electronic differential and drive anti-skid, they are often studied as a separate control strategy, and the research on implementing comprehensive control together is more difficult. There are few researches on torque coordination control based on drive anti-slip. If the specific control functions such as diff...

Claims

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Application Information

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IPC IPC(8): B60L15/38
CPCY02T90/16
Inventor 朱绍鹏马浩军吴志军邱斌斌
Owner 天津天海轮毂电机科技有限公司
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