Attitude controlling system for a steering wheel

摘要

A safety system in an apparatus for adjusting attitudes of a tilt mechanism and a telescopic mechanism of a steering wheel by means of an electric motor. A change speed of attitude is monitored and, when the monitored result becomes less than a predetermined value, this is judged as the presence of overload, whereupon the direction of driving of the electric motor is reversed. When a time of the reverse operation or the number of strokes during the reverse operation reaches a predetermined value, the electric motor is set to stop. Attitude information is sampled with intervals of a predetermined time and, when a change amount of the attitude information is less than a predetermined value, this is judged as the presence of overload.