System and method for determining pavement adhesion coefficient of distributed electrically-driven automobile
A road surface adhesion coefficient and electric drive technology, which is applied in the field of distributed electric drive vehicle road surface adhesion coefficient determination system, can solve the problems of difficult application, impracticality, and difficulty in identification and processing, and achieve the goal of simplifying the determination process and reducing the difficulty of determination Effect
Inactive Publication Date: 2020-11-27
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology
[0003] At present, the estimation methods of road surface adhesion coefficient used in the world mainly include: 1. Directly identify the road surface, which can avoid complex vehicle dynamics, but the road surface adhesion coefficient is the result of the interaction between vehicle tires and road surface, and the identification process is difficult ,Not practical
2. The estimation method based on kinematics, which fully considers the interaction between the vehicle and the road surface, but requires high accuracy of the vehicle model and is difficult to apply
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[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0044] The purpose of the present invention is to provide a system and method for determining the road surface adhesion coefficient of a distributed electric drive vehicle, so as to reduce the difficulty of determining the road surface adhesion coefficient and improve the determination efficiency of the road surface adhesion coefficient.
[0045] In order to make the above objects, features and advantages of the present invention more comprehensible, the presen...
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The invention relates to a system and a method for determining a pavement adhesion coefficient of a distributed electrically-driven automobile. The invention discloses the system and the method for determining a pavement adhesion coefficient of a distributed electrically-driven automobile, after the longitudinal acceleration, the vertical acceleration and the lateral acceleration are obtained, thepavement adhesion coefficient can be quickly determined according to the longitudinal acceleration, the vertical acceleration and the lateral acceleration, and compared with the prior art, the determination difficulty of the pavement adhesion coefficient can be reduced, and the determination process of the pavement adhesion coefficient is simplified.
Description
technical field [0001] The invention relates to the technical field of electric vehicle data processing, in particular to a system and method for determining the road surface adhesion coefficient of a distributed electric drive vehicle. Background technique [0002] Accurate estimation of road surface adhesion coefficient is of great significance to the active safety control of vehicles. Vehicle active safety control technologies all rely on accurate road adhesion, that is, under different road conditions, the vehicle can quickly sense the road conditions, feed back to each control system, and make different control strategies to ensure the safe and stable driving of the vehicle. [0003] At present, the estimation methods of road surface adhesion coefficient used in the world mainly include: 1. Directly identify the road surface, which can avoid complex vehicle dynamics, but the road surface adhesion coefficient is the result of the interaction between vehicle tires and roa...
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Login to View More IPC IPC(8): B60W40/064B60W40/00
CPCB60W40/00B60W40/064B60W2520/00B60W2520/105B60W2520/125
Inventor 邹震宇张旭东邹渊郭宁远
Owner BEIJING INSTITUTE OF TECHNOLOGYGY