Absolute Steering Angle Sensor

The invention relates to a steering angle sensor for motor vehicles.

Absolute steering angle sensor.

The only other sensors on a vehicle like this are the throttle angle sensor and gas pedal for vehicles with throttle by wire. But the steering angle sensor has two or three sensors packaged together. Detecting the absolute position and speed of the steering wheel is important in variable steering ratio and closed loop set ups where steering wheel position and steering angle have to match. The steering angle sensor sas is a critical part of the esc system that measures the steering wheel position angle and rate of turn.

The cluster always has more than one steering position sensor for redundancy and to confirm. To this end the invention proposes featuring two preferably concentric circular tracks 1 2 wherein the first track 1 is used to. For variable steering ratio and closed loop set ups where steering. Steering wheel position the sasa sensor detects the absolute position and speed of the steering wheel.

A method for detecting an absolute steering angle of a steering angle sensor such as encoder for a vehicle wherein the steering angle sensor generates an output signal indicating a relative rotation angle of a steering shaft of the vehicle and at least one reference signal representing a reference position for every one rotation of the steering shaft. There is one crankshaft position sensor one wheel speed sensor per wheel and only one output sensor on the transmission. A scan tool can be used to obtain this data in degrees. Responding to the sensor s can output signal the steering characteristics of the steering system adapt to the variable steering ratio.

The use of sasa sensor is relevant e g.