新型连续阻尼可调悬架系统超视距预瞄控制策略研究

桂永建; 马英照; 严天一

doi:10.13433/j.cnki.1003-8728.20230266

新型连续阻尼可调悬架系统超视距预瞄控制策略研究

doi: 10.13433/j.cnki.1003-8728.20230266

青岛大学机电工程学院，山东青岛　266071

基金项目: 国家自然科学基金项目（51475248）与山东省自然科学基金面上项目（ZR2016EEM49）

详细信息

作者简介:
桂永建（1997−），硕士研究生，研究方向为汽车电子控制技术，18254809880@163.com

通讯作者:
严天一，教授，硕士生导师，yan_7012@126.com

中图分类号: TP391.9；U461.4
计量
- 文章访问数: 35
- HTML全文浏览量: 7
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2022-10-10
- 刊出日期: 2023-08-31

Research on Over-horizon Preview Control Strategy of a New Type of Continuous Damping Adjustable Suspension System

College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, Shandong, China

摘要

摘要: 针对连续阻尼可调悬架系统中存在的典型时滞问题，本文提出一种基于云平台的超视距预瞄控制策略。首先，利用MATLAB/Simulink构建七自由度连续阻尼可调悬架系统整车动力学模型；然后利用云服务器搭建超视距预瞄控制策略运行平台，并基于消息队列遥测传输（Message queuing telemetry transport, MQTT）协议将车载控制单元与云服务器接入物联网平台，实现云端控制策略与车载控制单元的数据通讯；最后利用CarSim-Simulink联合仿真模型及车载控制单元进行硬件在环试验。结果表明，所提出的控制策略不仅能改善悬架系统的平顺性，而且将预瞄控制策略部署于云端的方式可有效降低车载电子控制单元负荷。
- 新型连续阻尼可调悬架系统 /
- 超视距预瞄控制 /
- 云平台 /
- 消息队列遥测传输协议 /
- 硬件在环
Abstract: Aiming at the typical time delay problem in the continuous damping adjustable suspension system, a cloud-based over-the-horizon preview control strategy is proposed in this paper. First, MATLAB/Simulink is used to build the vehicle dynamics model of the 7 DOF continuous damping suspension system; then, the cloud server is used to build the over-the-horizon preview control strategy operation platform, and the MQTT (Message queuing telemetry transport) is used to connect the vehicle control unit and the cloud server to the IoT platform to realize the data communication between the cloud control strategy and the vehicle control unit. Finally, the Carsim-Simulink co-simulation model and the vehicle control unit are used to conduct hardware-in-the-loop tests. The results show that the proposed control strategy can not only improve the ride comfort of the suspension system, but also can effectively reduce the load of the vehicle electronic control unit by deploying the preview control strategy in the cloud.
- continuous damping controllable suspension system /
- over-the-horizon preview /
- cloud platform /
- message queuing telemetry transport /
- hardware-in-the-loop

HTML全文

图 1 七自由度整车行驶动力学模型

Figure 1. Seven degrees of freedom vehicle driving dynamics model

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图 2 超视距预瞄控制策略框图

Figure 2. Beyond line-of-sight control strategy block diagram

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图 3 阻尼控制模型策略框图

Figure 3. Damping control model strategy block diagram

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图 4 硬件在环试验框架

Figure 4. Hardware-in-the-loop test frame

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图 5 垂向加速度响应

Figure 5. Vertical acceleration response

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图 6 侧倾角加速度响应

Figure 6. Roll angle acceleration response

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图 7 俯仰角加速度响应

Figure 7. Pitch angle acceleration response

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图 8 左后车轮悬架动行程响应

Figure 8. Left rear wheel suspension dynamic travel response

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图 9 右后车轮动载荷

Figure 9. Right rear wheel dynamic load

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表 1 模糊控制规则表

Table 1. Fuzzy control rule table

e₁	e₂
e₁	NB	NS	ZE	PS	PB
NB	NB	NM	NS	ZE	ZE
NS	NM	NS	ZE	ZE	PS
ZE	NS	ZE	ZE	ZE	PS
PS	NS	ZE	PS	PM	PM
PB	ZE	PS	PS	PM	PB

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表 2 新型连续阻尼可调悬架系统性能评价指标

Table 2. Performance evaluation index of a new continuous damping adjustable suspension system

评价指标	无控制	MPC 控制	控制效果提升
垂向加速度峰值	−1.231	−1.130	8.2%
垂向加速度均方根值	0.446	0.404	9.4%
侧倾角加速度峰值	−1.435	−1.361	5.1%
侧倾角加速度均方根值	0.498	0.433	13%
俯仰角加速度峰值	−1.866	1.702	8.7%
俯仰角加速度均方根值	0.635	0.569	10.3%
左后车轮悬架动行程峰值	0.0129	−0.0121	6.2%
左后车轮悬架动行程均方根值	0.0047	0.0041	12.7%
右后车轮动载荷峰值	−1790.43	−1503.98	15.9%
右后车轮动载荷均方根值	626.87	533.38	14.9%

下载: 导出CSV

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