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Vehicle anti-skid control method, control system and vehicle without wheel speed information

A control method and technology of a control system, applied in the field of vehicle anti-skid control system and anti-skid control, capable of solving the problems of harsh working environment, high failure rate, and increased cost of wheel speed sensors

Active Publication Date: 2018-07-06
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, whether it is a control method based on slip ratio or an anti-skid control method based on mechanics, wheel speed sensors are required, which increases the cost to a certain extent. At the same time, the working environment of wheel speed sensors is harsh and the failure rate is high, which affects the effectiveness of these methods. Practicality

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  • Vehicle anti-skid control method, control system and vehicle without wheel speed information
  • Vehicle anti-skid control method, control system and vehicle without wheel speed information
  • Vehicle anti-skid control method, control system and vehicle without wheel speed information

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Embodiment Construction

[0039] 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.

[0040] 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.

[0041] According to some embodiments of the present invention, a vehicle anti-slip control method without wheel speed inform...

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Abstract

The invention provides a vehicle anti-slip control system with no need for wheel speed information. According to the control system, estimated angular accelerations (omega-dot)-hat of vehicle wheels are calculated through accelerations and driving torque numerical values of centers of the vehicle wheels according to a vehicle kinetic equation, and the angular accelerations are compared with reference angular accelerations omega-dot<*> obtained through calculation to control torque output driving the vehicle wheels, so that all the vehicle wheels have the good anti-slip control effect in any state.

Description

technical field [0001] The invention relates to the technical field of vehicle driving / braking control, in particular to a vehicle anti-skid control system and anti-skid control method without wheel speed information. 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 ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/1761B60L15/20
CPCB60L15/2009B60L2240/423B60T8/1761Y02T10/72
Inventor 殷德军张婷单丹凤张冰
Owner NANJING UNIV OF SCI & TECH