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汽车ABS模糊变结构控制设计

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针对汽车制动过程中防抱死制动系统(ABS)存在的难以充分利用地面附着系数和高度非线性的问题,提出了一种基于路面识别的ABS模糊变结构控制策略.利用Burckhardt轮胎模型设计路面识别算法,并通过模糊变结构控制调节路面识别算法识别出的最优滑移率.仿真实验结果表明,路面识别算法响应速度快、准确率高;在跃变路面条件下,模糊变结构控制比变结构控制的制动时间减少7%,制动距离缩短6%,控制器输出的抖振幅度得到有效削弱.
Automobile Anti-Lock Brake System Fuzzy Variable Structure Control
For the problem of insufficient use of the ground adhesion coefficient and high nonlinearity of the Anti-lock Braking System(ABS)in the process of automobile braking,a road surface recognition al-gorithm is designed based on Burckhardt's tyre model,and the optimal slip rate detected by the road sur-face recognition algorithm is fed into the fuzzy variable structure control,so as to propose a fuzzy variable structure control strategy for ABS based on road surface detection.The results of the simulation experi-ments show that the road surface recognition algorithm has fast response and high accuracy;under the conditions of variational road surface,the fuzzy variable structure control reduces the braking time by 7%and the braking distance by 6%compared with the variable structure control,and the amplitude of the jitter vibration of the controller output is effectively attenuated.

anti-lock brake systemroad surface recognitionfuzzy variable structure controloptimal slip ratio

陈德政、汪石农、顾黄一

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安徽工程大学电气工程学院,安徽芜湖 241000

防抱死制动系统 路面识别 模糊变结构控制 最优滑移率

安徽省高校自然科学重点项目

KJ2021A0508

2024

吉首大学学报(自然科学版)
吉首大学

吉首大学学报(自然科学版)

影响因子:0.451
ISSN:1007-2985
年,卷(期):2024.45(4)