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Patent Searching and Data


Title:
ROAD SURFACE ADAPTIVE ANTI-SLIP REGULATION METHOD AND SYSTEM FOR DISTRIBUTED-DRIVE ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/042453
Kind Code:
A1
Abstract:
A road surface adaptive anti-slip regulation method for a distributed-drive electric vehicle is provided, and belongs to the technical field of vehicle control. The method comprises: estimating a current road surface peak adhesion coefficient in real time, and obtaining an optimal slip ratio of the current road surface according to a linear relationship between the current road surface peak adhesion coefficient and the optimal slip ratio of the current road surface; combining the wheel center speed of the current wheel to determine a reference wheel speed of the current wheel, and calculating a difference between the actual wheel speed and the reference wheel speed; and according to the wheel speed difference, performing a torque control on the slipping wheel in the driven state by means of a sliding mode variable structure controller, thereby ensuring that the slip ratio of the wheel is controlled to match the optimal slip ratio of the current road surface. Through this method, the slip ratio of the wheel is controlled to match the optimal slip ratio of the current road surface, and adaptive anti-slip regulation of the wheel is achieved. A road surface adaptive anti-slip regulation system for a distributed-drive electric vehicle is also provided.

Inventors:
LEI BO (CN)
GUO XIN (CN)
ZOU PENGFEI (CN)
MA YING (CN)
DONG WEICHAO (CN)
GUO XIAORAN (CN)
LU JIAHUA (CN)
Application Number:
PCT/CN2018/103893
Publication Date:
March 07, 2019
Filing Date:
September 04, 2018
Export Citation:
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Assignee:
ZHENGZHOU YUTONG BUS CO LTD (CN)
International Classes:
B60L15/20
Foreign References:
CN106985703A2017-07-28
CN107009916A2017-08-04
CN103879305A2014-06-25
CN102267459A2011-12-07
CN101024377A2007-08-29
US20090210128A12009-08-20
JP2012110073A2012-06-07
Attorney, Agent or Firm:
ZHENGZHOU RUIXIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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