基于逻辑门限值的汽车ABS控制策略

郑太雄; 马付雷

doi:10.19818/j.cnki.1671-1637.2010.02.013

基于逻辑门限值的汽车ABS控制策略

doi: 10.19818/j.cnki.1671-1637.2010.02.013

重庆邮电大学汽车电子与嵌入式系统研究所, 重庆 400065

基金项目:

核高基重大专项 2009ZX01038-002-002-2

重庆市自然科学基金项目 2009BB3416

详细信息

作者简介:
郑太雄(1974-), 男, 河北张家口人, 重庆邮电大学教授, 工学博士, 从事汽车电子系统研究

中图分类号: U463.5
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- 被引次数: 0
出版历程
- 收稿日期: 2010-01-22
- 刊出日期: 2010-04-25

Automotive ABS control strategy based on logic threshold

Institute of Automotive Electronic and Embedded System, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

More Information

Author Bio:
ZHENG Tai-xiong(1974-), male, professor, PhD, +86-23-62487859, zhengtx@cqupt.edu.cn

摘要

摘要: 为了解决参考车速估计的准确性对逻辑门限值法控制的影响, 采用改进的峰值连线法估计参考车速, 提出以滑移率门限控制为主, 车轮加速度门限控制为辅的汽车ABS控制策略, 并进行了高附着路面实车道路试验。试验结果表明: 当车辆速度为45 km·h^-1时, 参考车速与实际车速曲线基本吻合, 最大误差为6.4%, 平均误差小于1.6%, 制动时间为3.2 s, 制动距离为15 m, 平均减速度为3.9 m·s^-2, 控制效果良好, 控制策略可靠。
- 汽车工程 /
- 防抱死刹车系统 /
- 控制策略 /
- 逻辑门限值 /
- 滑移率 /
- 参考车速 /
- 改进的峰值连线法
Abstract: In order to solve the impact of the estimated accuracy of automotive reference speed on logic threshold control method, automotive reference speed was estimated by using correctional peak-to-peak connection method, and an automotive ABS control strategy was put forward. In the strategy, automotive slip ratio was main control threshold and automotive acceleration was secondary control threshold. A control test was carried out on the road with high attachment coefficient. Test result shows that at 45 km·h^-1, the curves of automotive reference speed and real speed match, the maximal error is 6.4%, and the average error is less than 1.6%. Automotive braking time is 3.2 s, the braking distance is 15 m, and the average deceleration is 3.9 m·s^-2. Obviously, the control effect is good and the control strategy is credible.
- automotive engineering /
- anti-lock braking system(ABS) /
- control strategy /
- logic threshold /
- slip ratio /
- automotive reference speed /
- correctional peak-to-peak connection method

HTML全文

图 1 μ与S的关系曲线

Figure 1. Relationship curves between μ and S

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图 2 单轮模型

Figure 2. Model of single wheel

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图 3 制动曲线

Figure 3. Braking curves

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图 4 峰值捕捉流程

Figure 4. Flow of capture peak

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图 5 控制逻辑流程

Figure 5. Flow of control logic

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图 6 ABS ECU硬件框图

Figure 6. ECU structure of ABS

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图 7 车轮速度和车速曲线

Figure 7. Curves of vehicle speed and wheel speeds

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表 1 控制参数含义

Table 1. Mearnings of control parameters

门限参数	含义
S₁	进入首次减压的滑移率门限
S₂	保压进入阶梯增压的滑移率门限
S₃	阶梯增压进入减压的滑移率门限
A₁	进入首次减压的车轮加速度门限
A₂	减压进入保压的车轮加速度门限
A₃	保压进入减压的车轮加速度门限

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表 2 控制参数

Table 2. Control parameters

滑移率门限值/%			车轮加速度门限值/(m·s^-2)
	前轮	后轮		前轮	后轮
S₁	16	18	A₁	-12.0	-14.0
S₂	13	14	A₂	1.5	2.2
S₃	11	13	A₃	1.8	2.5

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参考文献(11)

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