分布驱动电动汽车电液复合制动最优滑模ABS控制

doi:10.13229/j.cnki.jdxbgxb20210150

Abstract

Abstract:

In the emergency braking process， the total wheel demand braking torque is calculated and then the regenerative-frictional braking torques are distributed by the distributed driven electric vehicle. However， it not only increases the control complexity， but also is failure to fully utilize the motor energy recovery potential. To improve the anti-lock braking control and energy recovery effects， an optimal sliding mode （OSM）-ABS control system was designed. The regenerative braking torque to achieve a maximum feedback power was regarded as one element of the disturbance vector， and the frictional braking torque was regarded as the only element in the control vector. The control characteristic of the OSM control algorithm is given full utilized， namely， the influences of the disturbance vector in the control system can be compensated by the reaching law solution. On the premise of ensuring the recovery effect of braking energy， the secondary distribution process of braking torque is omitted. The simulation results show that， compared with the general sliding mode ABS control strategy with a regenerative-frictional braking torque distribution process， the proposed OSM-ABS control strategy has satisfactory effects on anti-lock control.

Key words: vehicle engineering, composite braking, anti-lock brake system, energy recovery, optimal sliding mode control

CLC Number:

U461.3

Jun-cheng WANG,Lin-feng LYU,Jian-min LI,Jie-yu REN. Optimal sliding mode ABS control for electro⁃hydraulic composite braking of distributed driven electric vehicle[J].Journal of Jilin University(Engineering and Technology Edition), 2022, 52(8): 1751-1758.

Figures/Tables 8

Fig.1

Fig.2

Table 1

Simulation parameters"

参数	数值	参数	数值
M/kg	344	A/m²	3.1
C_D	0.3	$ρ a$ /（kg·m^-3）	1.2258
I/（kg·m²）	0.5	r/m	0.283
τ	0.04	f	0.01

Table 1

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

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