CAM SHAFT ROTATION SENSOR

摘要

A sensor device is provided with a magnetic field sensitive element to be positioned in a magnetic field of a magnet. The magnet is positioned on an end face of a cam shaft of an engine. The magnetic field sensitive element is configured to sense an orientation angle of the magnetic field in the range between 0° and 360°. Further, the sensor device is provided with a memory. The memory stores a mapping of pulse edges to orientation angles. Further, the sensor device is provided with electronic circuitry. The electronic circuitry is configured to generate, depending on the sensed orientation angle and the stored mapping of pulse edges to orientation angles, a signal comprising a pattern of pulses with rising and falling pulse edges which are mapped to predefined orientation angles as sensed by the magnetic field sensitive element.

主权项

1. A sensor device, comprising:
a magnetic field sensitive element to be positioned in a magnetic field of a magnet positioned on an end face of a cam shaft of an engine, the magnetic field sensitive element being configured to sense an orientation angle of the magnetic field in the range between 0° and 360°; a memory storing a mapping of pulse edges to orientation angles; and electronic circuitry configured to generate, depending on the sensed orientation angle and said stored mapping of pulse edges to orientation angles, a signal comprising a pattern of pulses with rising and falling pulse edges which are mapped to predefined orientation angles as sensed by the magnetic field sensitive element.