用于控制线控转向系统的方法和用于机动车辆的线控转向系统

文档序号:143845 发布日期:2021-10-22 浏览:24次 >En<

阅读说明:本技术 用于控制线控转向系统的方法和用于机动车辆的线控转向系统 (Method for controlling a steer-by-wire system and steer-by-wire system for a motor vehicle ) 是由 彼得·考考什 亚当·瓦尔加 丹尼尔·维泽尔 于 2020-03-02 设计创作,主要内容包括:本发明涉及一种用于控制用于机动车辆的线控转向系统(1)的方法,该线控转向系统(1)包括:可电子控制的转向控制器(2),该转向控制器(2)作用在转向轮上并且检测转向轮的实际转向角(α);反馈致动器(3),该反馈致动器(3)检测经由方向盘调节的目标转向角(β);以及致动单元(4),该致动单元(4)以根据目标转向角(β)和实际转向角(α)的经检查的扭矩请求信号(PT-(req))致动转向控制器(2),其中,该方法包括以下步骤:通过致动单元(4)的位置控制器(5)至少基于目标转向角(β)和实际转向角(α)来确定扭矩请求信号(T-(req));使用致动单元(4)的检查装置(6)来检查位置控制器(5)是否处于错误状态;在尚未确立错误状态的情况下,使用检查装置(6)的选择装置将扭矩请求信号(T-(req))选择为经检查的扭矩请求信号(PT-(req));在确立错误状态的情况下,使用检查装置(6)的选择装置将参考扭矩信号(T-(ref))选择为经检查的扭矩请求信号(PT-(req));将经检查的扭矩请求信号(PT-(req))传输至转向控制器(2),其中,通过评估由检查装置(6)的计算单元计算为目标转向角(β)与实际转向角(α)之间的控制偏差的时间积分的累积偏差变量,检查装置(6)确立是否存在错误状态并通过参考控制器至少基于控制偏差确定参考扭矩信号(T-(ref))。(The invention relates to a method for controlling a steer-by-wire system (1) for a motor vehicle, the steer-by-wire system (1) comprising: an electronically controllable steering controller (2), which steering controller (2) acts on the steered wheels and detects the actual steering angle (α) of the steered wheels; a feedback actuator (3), the feedback actuator (3) detecting a target steering angle (β) adjusted via a steering wheel; and an actuating unit (4), the actuating unit (4) being configured to generate a torque request signal (PT) in dependence on the target steering angle (beta) and the actual steering angle (alpha) under inspection req ) Actuating rotaryTo a controller (2), wherein the method comprises the steps of: determining a torque request signal (T) based on at least the target steering angle (beta) and the actual steering angle (alpha) by means of a position controller (5) of the actuating unit (4) req ) (ii) a Checking whether the position controller (5) is in an error state using a checking device (6) of the actuating unit (4); in the case that no error condition has been established, the torque request signal (T) is transmitted using a selection device of the checking device (6) req ) Selected as the checked torque request signal (PT) req ) (ii) a In the case of an error state being established, the reference torque signal (T) is transmitted using a selection device of the checking device (6) ref ) Selected as the checked torque request signal (PT) req ) (ii) a Checking the torque request signal (PT) req ) To the steering controller (2), wherein the checking device (6) establishes whether an error state is present by evaluating a cumulative deviation variable calculated by a calculation unit of the checking device (6) as a time integral of a control deviation between the target steering angle (beta) and the actual steering angle (alpha) and determines a reference torque signal (T) by the reference controller at least on the basis of the control deviation ref )。)

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