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基于高速开关阀的气压电控辅助制动装置

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Keywords: 商用车辆,驾驶辅助,气压制动,高速开关阀,电控辅助制动装置

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Abstract:

为了满足商用车辆纵向驾驶辅助系统对于自动制动的要求,设计了一种基于高速开关阀的气压电控辅助制动装置。建立了装置的数学模型,设计了抗积分饱和的PI控制器,采用脉宽调制方法动态调节高速开关阀,实现对车辆制动压力的主动控制。搭建了电控辅助制动装置的硬件在环仿真试验平台,对其控制效果进行试验验证。分析结果表明该装置不仅能够快速准确地响应制动指令,其稳态误差小于0.01MPa,响应时间小于0.3s,同时具有安装方便,与商用车制动系统兼容性好的优点。

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