Hinterradlenksystem

摘要

A rear-wheel steering system designed to reduce noise to a minimum at a low cost. The rear-wheel steering system includes an electric motor (3) for generating a rotational force, a nut member (15) connected to the electric motor and rotated thereby, and a rod (19) having both ends connected to rear wheels of a vehicle and an external thread portion (19c) in mesh with an internal thread portion (15a) of the nut member (15). The rod (19) is axially moved by rotation of the nut member (15) for rear-wheel steering, but is not allowed to rotate. In the system, the internal thread portion (15a) is in mesh with the external thread portion (19c) such that each axial centre is off-centre.