The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2011
Filed:
Oct. 24, 2008
Walter Hecht, Ravensburg, DE;
Armin Gierling, Langenargen, DE;
Klaus Steinhauser, Kressbronn, DE;
Frank Worms, Langenargen, DE;
Bernd Zänglein, Ravensburg, DE;
Stéphane Klein, Kressbronn, DE;
Walter Hecht, Ravensburg, DE;
Armin Gierling, Langenargen, DE;
Klaus Steinhauser, Kressbronn, DE;
Frank Worms, Langenargen, DE;
Bernd Zänglein, Ravensburg, DE;
Stéphane Klein, Kressbronn, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A method for selecting a neutral position of a transmission and for selecting a parking device intended for immobilizing a vehicle, wherein the neutral position and the parking device can be engaged or actuated as a function of a position chosen by the driver on a selector device and as a function of other vehicle operating parameters. It is proposed that only if the vehicle has come approximately to a stop and simultaneously an ignition circuit acting on a driving motor of the vehicle is electrically interrupted and simultaneously a 'Neutral' position is specified by way of the selector device, an N-holding phase, in which the transmission is in a neutral position having no frictional connection, can be activated by way of a separate control device provided in addition to the selector device, as long as an energy management system of the motor vehicle allows the activation of the N-holding phase.