| 摘要 |
An active geometry control suspension using a single actuator is provided to drastically reduce the production cost of the AGCS(Active Geometry Control Suspension) by regulating two-side vehicle wheels at once and serving as the AGCS through one actuator. An active geometry control suspension using a single actuator comprises a suspension unit and a toe control unit(1). The suspension unit has a trailing arm, an upper control arm, and a thrust assembly. The trailing arm is disposed along the length of a vehicle body to be connected with a vehicle wheel through a carrier(C). The upper control arm is disposed along the width. The thrust assembly is formed with a spring and a shock absorber. The toe control unit has an actuator(2), first and second lead screws(5,6), an encoder unit(3), a limit switch unit(7), a control lever(9), and an assist arm(10). The actuator is controlled by an ECU(Electronic Control Unit) inputting signals of various sensors to generate the driving force. The first and second lead screws are rotated in opposite directions through a motor as the actuator to be moved toward left and right vehicle wheels(LW,RW). The encoder unit measures rotation angle of the motor in driving the actuator to measure displacement of the first and second lead screws. The limit switch unit outputs power according to displacement of the first lead screw to judge position of the first lead screw. The control lever is connected with the lead screws by intermediation of a link(8) to convert linear motion of the lead screws into angular motion. The assist arm adjusts toe angle by operating the carrier pulled/pushed along the angular motion of the control lever. |
