A current control method and an electric control chassis suspension system are mainly characterized in that a controller performs operation according to current state information to generate a current resistance value, and the current state information comprises an input voltage, a current control current and a current duty ratio. The controller is provided with a proportional valve characteristic database, the proportional valve characteristic database records resistance values corresponding to various currents and temperatures, a current temperature value is obtained through table look-up according to the current resistance value and the proportional valve characteristic database, and the controller conducts table look-up according to the current temperature value and a target current value and the proportional valve characteristic database to obtain a target resistance value. The target current value is related to the damping force of vehicle body suspension control, the controller calculates and generates a target duty ratio according to the target current value, the target resistance value and the input voltage, and the controller generates a pulse wave control signal according to the target duty ratio and transmits the pulse wave control signal to the driver, so that accurate and rapid damping modulation is achieved to adjust the dynamic stability of the vehicle, and the vehicle runs more comfortably and safely.
一种电流控制方法与电控底盘悬吊系统,主要技术是控制器根据目前状态信息进行运算产生目前电阻值,目前状态信息包括输入电压、目前控制电流、目前占空比。控制器具有比例阀特性数据库,比例阀特性数据库记录多种电流与温度所对应的电阻值,且根据目前电阻值与比例阀特性数据库查表得到目前温度值,控制器根据目前温度值与目标电流值与比例阀特性数据库进行查表,得到目标电阻值,目标电流值相关车身悬吊控制的阻尼力,控制器根据目标电流值、目标电阻值、输入电压计算产生目标占空比,控制器产生根据目标占空比产生脉波控制信号到驱动器,达到准确快速的阻尼调变以调整车辆动态稳定,使车辆行驶更舒适安全。
Current control method and electric control chassis suspension system
电流控制方法与电控底盘悬吊系统
2024-05-14
Patent
Elektronische Ressource
Chinesisch
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