基于EMB的纯电动汽车制动能量回收优化控制策略研究

doi:10.19562/j.chinasae.qcgc.2022.01.009

Abstract

Abstract:

In order to increase the energy recovered during electric vehicle braking and reduce energy waste， a regenerative braking force distribution method based on electro-mechanical braking （EMB） system is proposed. Firstly， the current braking strength is obtained according to the signal of brake pedal， and the braking forces of the front and rear axle are obtained respectively based on the strategy for braking force distribution between the front and rear axles. Then， the fuzzy controller is created with the vehicle speed， the battery SOC and the travel of brake pedal as inputs and the proportion of regenerative braking as output， and the fuzzy controller is optimized by using PSO algorithm， with maximizing the energy recovered during braking as optimization objective. Finally， a Simulink/AVL-Cruise joint-simulation is carried out. The results show that the energy recovered is increased by 2.5% under NEDC condition and by 1.56% under CLTC-P condition.

Key words: battery electric vehicles, braking energy recovery, electro-mechanical braking, particle swarm optimization, joint simulation

Jiujian Chang,Yufan Zhang. Research on Optimization Control Strategy for Braking Energy Recovery of a Battery Electric Vehicle Based on EMB System[J].Automotive Engineering, 2022, 44(1): 64-72.

Figures/Tables 22

References 14

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序号	SOC	v	BRK	K	序号	SOC	v	BRK	K
1	D	HD	D	D	19	Z	Z	D	HG
2	D	HD	Z	Z	20	Z	Z	Z	HG
3	D	HD	G	HD	21	Z	Z	G	G
4	D	D	D	G	22	Z	G	D	G
…	…	…	…	…	…	…	…	…	…
15	Z	HD	G	D	33	G	Z	G	D
16	Z	D	D	HG	34	G	G	D	D
17	Z	D	Z	HG	35	G	G	Z	Z
18	Z	D	G	G	36	G	G	G	HD

参数	数值
整备质量m/kg	1 300
质心高度h/m	0.5
前轴到质心的距离a/m	1.180 5
后轴到质心的距离b/m	1.449 5
前轴到后轴的距离L/m	2.63
车轮半径r/m	0.32
迎风面积A/m²	2.0
空气阻力系数C_D	0.35
前轴制动器制动活塞的制动面积A_bf/mm²	1 800
后轴制动器制动活塞的制动面积A_br/mm²	1 500
前轴制动盘半径r_bf/mm	130
后轴制动盘半径r_br/mm	110
太阳轮齿数Z_a	19
行星轮齿数Z_c	29
内齿圈齿数Z_b	77
传动比i_x	5.053
滚珠丝杆导程P_h/m	0.008
电机峰值转矩T_max/（N·m）	140
电机峰值功率P_max/kW	13

Research on Optimization Control Strategy for Braking Energy Recovery of a Battery Electric Vehicle Based on EMB System

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序号	SOC	v	BRK	K	序号	SOC	v	BRK	K
1	D	HD	D	D	19	Z	Z	D	HG
2	D	HD	Z	Z	20	Z	Z	Z	HG
3	D	HD	G	HD	21	Z	Z	G	G
4	D	D	D	G	22	Z	G	D	G
…	…	…	…	…	…	…	…	…	…
15	Z	HD	G	D	33	G	Z	G	D
16	Z	D	D	HG	34	G	G	D	D
17	Z	D	Z	HG	35	G	G	Z	Z
18	Z	D	G	G	36	G	G	G	HD

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序号	SOC	v	BRK	K	序号	SOC	v	BRK	K
1	D	HD	D	D	19	Z	Z	D	HG
2	D	HD	Z	Z	20	Z	Z	Z	HG
3	D	HD	G	HD	21	Z	Z	G	G
4	D	D	D	G	22	Z	G	D	G
…	…	…	…	…	…	…	…	…	…
15	Z	HD	G	D	33	G	Z	G	D
16	Z	D	D	HG	34	G	G	D	D
17	Z	D	Z	HG	35	G	G	Z	Z
18	Z	D	G	G	36	G	G	G	HD

序号	SOC	v	BRK	K	序号	SOC	v	BRK	K
1	D	HD	D	D	19	Z	Z	D	HG
2	D	HD	Z	Z	20	Z	Z	Z	HG
3	D	HD	G	HD	21	Z	Z	G	G
4	D	D	D	G	22	Z	G	D	G
…	…	…	…	…	…	…	…	…	…
15	Z	HD	G	D	33	G	Z	G	D
16	Z	D	D	HG	34	G	G	D	D
17	Z	D	Z	HG	35	G	G	Z	Z
18	Z	D	G	G	36	G	G	G	HD