Continental Teves, Ag and Company Ohg

Ralf Klausen

Wolfgang Fritz

Timo Dietz

Wolfgang Jöckel

Jörg Eckrich

Wolfgang Joeckel

Joerg Eckrich

A sensor and method for determining at least one internal parameter for an active sensor in a special mode of operation. The sensor has at least one sensor element, an evaluation circuit, at least two connecting lines, and a changeover module. The sensor is changed over between a normal mode of operation and the special mode of operation by means of the changeover module and is put into the special mode of operation for the purpose of determining the at least one internal parameter. The sensor has an electric offset source which is used in the special mode of operation to at least partially actuate the evaluation circuit on the basis of the supply voltage of the sensor which is applied to the two connecting lines such that the at least one internal parameter of the sensor can be ascertained from the sensor output signal.

Method for determining at least one first internal parameter of a sensor

Active sensor for switching over into a special operating mode, wherein the sensor has at least one sensor element, one evaluation circuit and two connecting lines, each with a terminal for transmitting the sensor information, wherein a supply voltage of the sensor is applied to the two connecting lines, wherein the sensor comprises a switchover module with which it is possible to switch over between a normal operating mode and a special operating mode by reversing the polarity of the supply voltage which is applied to the two terminals. A method for actuating an active sensor and to the use of the sensor, in particular as a wheel speed sensor, in motor vehicles.

Active sensor with operating mode changeover

Growing community of inventors

Frankfurt-am-Main, Germany

Ralf Klausen