The invention relates to a method for steering a vehicle by means of a rear axle steering system, the rear axle steering system comprising an actuator (1) having a steering link (2) which can be actuated at least indirectly by means of a screw drive (4) and which can be displaced longitudinally in a housing (3) of a fixed chassis, the invention relates to an actuator (1) for an electric motor (16), by means of which the steering angle of a wheel connected at least indirectly to a steering link (2) is adjusted, comprising: a rotor position sensor (6) for detecting a current rotor position of a rotor of the electric motor (16), the rotor being designed for actuating a screw drive (4); and a linear sensor (8) for detecting a current axial position of a target (11) arranged on the steering link (2), at least the two sensors (6, 8) being each connected to a control and analysis unit (10), the control and analysis unit (10) always compares the current rotor position of the rotor with the current axial position of the target (11) in the presence of a defined zero point of the axial position of the steering link (2) with respect to the housing (3), and operates the actuator (1) in order to adjust the steering angle in consideration of at least the thermal expansion of the steering link (2). The invention also relates to a rear axle steering system having such an actuator (1), and to a vehicle comprising such a rear axle steering system or such an actuator.
本发明涉及一种用于借助于后桥转向系统使车辆转向的方法,其中,后桥转向系统包括具有转向连杆(2)的致动器(1),转向连杆能够至少间接地通过螺纹传动装置(4)进行操作并且转向连杆能够在固定底盘的壳体(3)内纵向地移位,其中,至少间接地连接至转向连杆(2)的车轮的转向角通过所述转向连杆进行调节,致动器(1)包括:转子位置传感器(6),该转子位置传感器用于检测电动马达(16)的转子的当前转子位置,转子被设计成用于使螺纹传动装置(4)致动;以及线性传感器(8),该线性传感器用于检测布置在转向连杆(2)上的目标(11)的当前轴向位置,至少这两个传感器(6,8)各自连接至控制和分析单元(10),控制和分析单元(10)在转向连杆(2)相对于壳体(3)的轴向位置的限定的零点存在时始终进行转子的当前转子位置与目标(11)的当前轴向位置之间的比较,并且该控制和分析单元考虑到至少转向连杆(2)的热膨胀来操作致动器(1)以便调节转向角度。本发明还涉及一种具有这种致动器(1)的后桥转向系统,并且涉及一种包括这种后桥转向系统或这种致动器的车辆。
METHOD FOR STEERING A VEHICLE, ACTUATOR FOR A REAR AXLE STEERING SYSTEM OF A VEHICLE, AND REAR AXLE STEERING SYSTEM HAVING SUCH AN ACTUATOR
用于使车辆转向的方法、用于车辆后桥转向系统的致动器和具有这种致动器的后桥转向系统
2022-07-15
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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