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High-robustness wheel anti-skid control method, high-robustness wheel anti-skid control system and vehicle

A technology with high robustness and control method, which is applied in the field of highly robust wheel anti-skid control system and anti-skid control, and can solve problems such as dependence on vehicle parameters, practicality of control methods, and sensitivity to changes in body weight.

Active Publication Date: 2016-08-24
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Slip rate based antiskid control tends to not work well when all wheels are active (driving / braking)
[0003] For this reason, some researchers have abandoned the application of slip ratio. In the application of distributed drive electric vehicles, anti-skid control based on mechanics is proposed, such as the MFC proposed by Yoichi Hori, Hiroshi Fujimoto, Dejun Yin et al. MTTE and other methods, but these control methods are heavily dependent on vehicle parameters and are sensitive to changes in vehicle resistance and body weight, which limits the practicability of these methods

Method used

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  • High-robustness wheel anti-skid control method, high-robustness wheel anti-skid control system and vehicle
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  • High-robustness wheel anti-skid control method, high-robustness wheel anti-skid control system and vehicle

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Embodiment Construction

[0034] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0035] Aspects of the invention are described in this disclosure with reference to the accompanying drawings, which show a number of illustrated embodiments. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of numerous ways, since the concepts and embodiments disclosed herein are not limited to any implementation. In addition, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

[0036] According to some embodiments of the present invention, a highly robust wheel anti-slip control method obtains the an...

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Abstract

The invention provides a high-robustness wheel anti-skid control system. The control system is characterized in that an angular velocity of each wheel is subjected to differential calculation to obtain an angular acceleration; by means of combining the angular acceleration and a driving torque value of each wheel, a driving force applied to each wheel is calculated according to a wheel kinetic equation; by means of combining the driving force with a center acceleration of each wheel and regulatory factors, a constraint torque of each wheel can be obtained by calculation; by comparison of an upper torque output request value and a constraint torque numerical value, wheel driving torque output is controlled, and all wheels are enabled to have excellent anti-skid control effects under any conditions.

Description

technical field [0001] The invention relates to the technical field of vehicle driving / braking control, in particular to a highly robust wheel anti-slip control system and anti-slip control method. Background technique [0002] A vehicle braking system with an electronic anti-skid control function belongs to the prior art. Known vehicle braking systems can brake the individual wheels of the vehicle independently of the driver's wishes, such as anti-lock braking systems (ABS) for preventing wheel locks, traction distribution control systems ( TCS), in order to make the vehicle into a stable form of device (Electronic Stability System ESP), in order to eliminate the slippage of the driving wheel (Drive anti-skid control system ASR), etc., these are all bottom wheel control, need to be based on the wheel slip rate (Slip Ratio) to proceed. However, the calculation of slip ratio often requires the use of information from other wheels. When all the wheels are in working state (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/171B60T8/172B60T8/1755
CPCB60T8/171B60T8/172B60T8/17551B60T2270/20
Inventor 殷德军张婷单丹凤张冰
Owner NANJING UNIV OF SCI & TECH
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