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制动踏板模拟器为驾驶员提供踏板感觉反馈信息,是电控制动系统的重要部件。提出了一种基于电磁阀控制实现的踏板感觉可控的汽车制动踏板模拟器,分析了电控制动系统中踏板模拟器工作原理,建立了汽车制动踏板模拟器的电液耦合动力学模型,提出了单神经元自适应PID调节的电磁阀控制策略,并通过实例仿真分析了踏板特性的影响参数。结果表明该策略可在制动踏板行程内控制踏板力相对误差不超过5%。
Brake pedal simulator for the driver to provide pedal feel feedback information is an important part of the electronic control system. A brake pedal simulator with controllable pedal feel based on solenoid valve control was proposed. The working principle of the pedal simulator in the electronic brake system was analyzed, and the electro-hydraulic coupling dynamics of the brake pedal simulator was established Model, a single neuron adaptive PID regulator solenoid valve control strategy is proposed, and the influence parameters of the pedal characteristics are analyzed by examples. The result shows that this strategy can control the relative error of pedal force no more than 5% during the brake pedal stroke.