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Multi-wheel drive platform and electronic differential control method thereof

An electronic differential control, multi-wheel drive technology, applied in the direction of control drive, control device, electric vehicle, etc., can solve problems such as control lag, achieve the effect of solving steering wear and high control reliability

Active Publication Date: 2021-03-16
CHINA ENERGY GRP NINGXIA COAL IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the problem of control lag caused by the passive differential control method of the existing electronic differential lock. Therefore, the present invention proposes an active electronic differential control method

Method used

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  • Multi-wheel drive platform and electronic differential control method thereof
  • Multi-wheel drive platform and electronic differential control method thereof
  • Multi-wheel drive platform and electronic differential control method thereof

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Embodiment Construction

[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] The following is a specific implementation of the electronic differential speed control method of the multi-wheel drive platform of the present invention. The driving wheel set of the multi-wheel drive platform is driven by a speed-regulating motor. See figure 1 , the control method includes:

[0033] S101. Obtain a first set of the calibrated driving speed and the corresponding calibrated driving force of the speed-regulating motor;

[0034] S102. Determine the theoretical instantaneous speed and theo...

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Abstract

The invention discloses a multi-wheel drive platform and an electronic differential control method thereof. A drive wheel set of the multi-wheel drive platform is driven by a speed regulation motor. The control method comprises the steps that a first set of a calibration drive rotation speed of the speed regulation motor and a corresponding calibration drive force is acquired; according to the instantaneous linear speed of at least one steering drive wheel in the drive wheel set and the instantaneous steering angle of each steering drive wheel, the theoretical instantaneous rotating speed andthe theoretical driving force of each drive wheel in the steering process are determined as a second set; and when the corresponding parameters of the second set and the first set are smaller than a set threshold value, the drive force of the speed regulation motor to the drive wheel set is determined. The problem of control lag caused by a passive differential control method of an existing electronic differential lock is solved.

Description

technical field [0001] The invention relates to the field of differential speed control of a multi-wheel drive platform, in particular to an electronic differential control method and system for a multi-wheel drive platform. Background technique [0002] With the continuous improvement of the requirements of the automobile industry and the commercial robot industry for electric drive units, new electric drives gradually get rid of the shackles of the original variable speed deceleration and mechanical differential devices, and integrate and integrate electronic speed change and differential structures for future development direction. Therefore, solutions for multi-stage electronic variable speed and electronic differential have become the first choice for multi-industry solutions. [0003] The existing electronic differential control is usually realized by electronic differential lock EDS (Electronic Differential System). It automatically detects the rotation speed of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20B62D11/06
CPCB60L15/2036B62D11/003B62D11/06B60L2240/42Y02T10/72
Inventor 边林王森王涛宋龑赵峰
Owner CHINA ENERGY GRP NINGXIA COAL IND CO LTD