Servo steering system for motor vehicle; has output shaft operated by steering shaft through self-locking first input and by electric adjustment unit through second input

摘要

The system has an output shaft (7), which is operated by a steering wheel shaft (1) through a first input (3) of a differential gear (2) and by an electric adjustment unit (9) through a second input (2). The electric adjustment unit is controlled according to driving parameters. The first input of the differential gear is self-locking. The differential gear is preferably between the first input and the output shaft. An Independent claim is included for a method to operate the system.