The present invention provides an electrically powered suspension system which makes it possible to fulfill the vibration isolation performance of the sprung members and the grounding performance of the unsprung members at the same at a higher level corresponding to the motion condition of the vehicle (10) which changes with time. The electrically powered suspension system includes an electromagnetic actuator (13) which generates a drive force for damping vibration of a vehicle body; an information acquirer (43) which acquires time-series information about a stroke position of, and informationabout a stroke velocity (SV) of, the electromagnetic actuator (13), as well as information about reverse of a stroke direction and information about a stroke amount (AS) after the reverse; a dampingforce calculator (45) which calculates a target damping force based on the information about the stroke velocity (SV); and a drive controller (49) which controls drive of the electromagnetic actuator(13) using a target drive force based on the target damping force calculated by the damping force calculator (45). The damping force calculator corrects the target drive force based on the informationabout the stroke amount (AS) after the reverse acquired by the information acquirer.
本发明提供一种电动悬架装置,其对应于时刻变化的车辆(10)的运动状态以高水准兼顾簧上部件的振动阻断性能和簧下部件的接地性能。该电动悬架装置包括:电磁致动器(13),其产生与车身的振动衰减相关的驱动力;信息获取部(43),其分别获取电磁致动器(13)的行程位置的时序信息、行程速度(SV)以及与行程方向相关的反转时的信息及反转后的行程量(AS)的信息;衰减力计算部(45),其基于行程速度(SV)的信息计算目标衰减力;以及驱动控制部(49),其使用基于由衰减力计算部(45)计算出的目标衰减力的目标驱动力进行电磁致动器(13)的驱动控制。衰减力计算部基于由信息获取部获取的反转后的行程量(AS)的信息进行目标衰减力的修正。
Electrically powered suspension system
电动悬架装置
2020-10-09
Patent
Electronic Resource
Chinese
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |