METHODS AND DEVICES FOR RELEASING AN ELECTRIC ACTUATOR IN A RELIABLE MANNER USING A QUASI-ELASTIC RELEASE END STOP

Methods and corresponding control devices for releasing an electric actuator in a reliable manner, such as an electric parking brake in particular, in a motor vehicle brake system. The aim of the invention is to provide an improved function and architecture which helps prevent the disadvantages of o...

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Hauptverfasser: Scheib, Ralf, Pöffel, Lionel, Froschauer, Marco, Giusto, Alessandro, Görrissen, Niclas, Breiten, Christian, Bijanzadeh, Pejman, Merker, Thomas, Merkel, Philipp, Bauer, Jürgen, Brezza, Giulio, Boscolo, Luca, Tessitore, Luigi, Winkler, Thomas, Schneider, Heniz-Anton, Maron, Christof, Balz, Jürgen
Format: Patent
Sprache:eng
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Zusammenfassung:Methods and corresponding control devices for releasing an electric actuator in a reliable manner, such as an electric parking brake in particular, in a motor vehicle brake system. The aim of the invention is to provide an improved function and architecture which helps prevent the disadvantages of open-loop control systems when using a rationalized sensor system, thereby obviating closed-loop control systems. This is achieved by a release method and a corresponding electronic control unit which obtains an especially modulated change in the power requirement during the release process upon impacting the quasi-elastic release end stop of the electric actuating unit such that the change is fed back, the change being detected in order to be used as information for a power interruption or a termination of the power supply to the electric actuating unit.