Checking apparatus for checking a number of start cycles of a detection device of a motor vehicle, and method
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorMartin Heller
Life of this patent
Estimating the term…
Abstract
A checking apparatus for checking a number of start-up cycles of a detection device of a motor vehicle includes an electrical switching device for providing an electrical sensor supply for the detection device and includes a contact device for electrically contacting the electrical switching device with the detection device. The electrical switching device has a comparator circuit and, by way of the comparator circuit, a continuous wake up test of the detection device is carried out and thus the number of start cycles is checked.
Claims10
A checking apparatus for checking a number of start-up cycles of a detection device of a motor vehicle, comprising:
- an electrical switching device for providing an electric sensor power supply for the detection device;
- and
- a contact device for creating electrical contact between the electrical switching device and the detection device,
- wherein the electrical switching device has a comparator circuit that performs a continuous wake-up test on the detection device,
- wherein the continuous wake-up test detects current pulses from the detection device that are indicative of a start-up cycle of the detection device independent of a sensing function and as a result of providing the electric sensor power supply, and
- wherein the number of start-up cycles is checked via the detection of current pulses during the continuous wake-up test.
A method for operating a checking apparatus for checking a number of start-up cycles of a detection device of a motor vehicle, in which an electric sensor power supply for the detection device is provided by way of an electrical switching device, the method comprising:
- contacting, via a contact device, the electrical switching device with the detection device, the electrical switching device comprising a comparator circuit;
- and
- performing a continuous wake-up test on the detection device, by way of the comparator circuit,
- wherein the continuous wake-up test detects current pulses from the detection device that are indicative of a start-up cycle of the detection device independent of a sensing function and as a result of providing the electric sensor power supply, and
- whereby a number of start-up cycles is checked via the detection of current pulses during the continuous wake-up test.
Dependencies are inferred from the claim text.