Positioning sensor for a motor vehicle
AssigneeHella KG Hueck & Co.
InventorsHenning Irle, Norbert Kost, Franz-Josef Schmidt
Life of this patent
Estimating the term…
Abstract
A position sensor for a motor vehicle is described which, as its sensor signal, generates several pulse-width modulated signals that vary as a function of position. The position sensor transmits individual sensor signals in a defined sequence of consecutive individual pulses over the same output line to a receiver. The individual sensor signals are each encoded in the duty factor of a pulse. Therefore, the position sensor has a signal transmission system that is simple and inexpensive to implement. Particularly advantageous is the characteristic that it is possible to avoid an interconnection of the position sensor to a bus system.
Claims10
Position sensor for a motor vehicle which generates, as its sensor signal, several pulse-width modulated signals that vary as a function of position, wherein the position sensor transmits individual sensor signals in a defined sequence of consecutive individual pulses over the same output line to a receiver,
- wherein the sensor signals are each encoded in the duty factor of a pulse, and
- wherein a total measuring range of the position sensor is subdivided into several sequentially adjacent measuring sections, and wherein the position sensor adds a fixed offset value to a digitalized measured value with the sum of a minimum possible measured value and the offset value corresponds to a pulse-width modulated signal with a minimum modulation depth greater than 0%, and a sum of the maximum possible measured value and the offset value corresponds to a pulse-width modulated signal with a maximum modulation depth less than 100%.
Position sensor for a motor vehicle, which generates, as its sensor signal, several pulse-width modulated signals that vary as a function of position,
- wherein the position sensor transmits individual sensor signals in a defined sequence of consecutive individual pulses over the same output line to a receiver,
- wherein the sensor signals are each encoded in the duty factor of a pulse,
- wherein the position sensor also transmits signals for control and synchronization over the output line;
- and
- wherein the signals for control and- synchronization of the signal transmission exhibit a modulation depth that lies between 0% and a minimum modulation depth used to transmit measured values and/or between a maximum modulation depth used to transmit measured values and a modulation depth of 100%.
Dependencies are inferred from the claim text.