| 摘要 |
An electric power assist steering system (10) includes a pinion gear (102) supported for rotation in a motor housing (30). The pinion gear (102) is operatively connected to a steering wheel (12) of the vehicle through a torsion bar (106). A linear electric assist motor (17) is located in the housing (30). The motor (17) includes a stator (122) fixed to the motor housing (30) and a slider (124) supported for linear movement relative to the housing. Rack teeth (180) are disposed on the slider (124) in meshing engagement with the pinion gear (102). The system (10) further includes a torque sensor (110) for providing a torque signal in response to the sensed applied steering torque. A controller (186) provides a control signal in response to the torque signal and actuates the motor (17) to effect linear movement of the slider (124). Steering linkage members (18, 19, 20, 21) connect the slider (124) of the motor (17) to steerable wheels (22, 24) of the vehicle.
|
