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:
Apr. 05, 2022
Filed:
Feb. 28, 2018
Hella Gmbh & Co. Kgaa, Lippstadt, DE;
Dennis Mark Burke, Canton, MI (US);
Kenneth James Nadeau, Ann Arbor, MI (US);
Werner Austermeier, Schloss Holte-Stukenbrock, DE;
Henning Irle, Lippstadt, DE;
Marcus Irrgang, Soest, DE;
HELLA GmbH & Co. KGaA, Lippstadt, DE;
Abstract
A pedal emulator () is provided. The pedal emulator includes an emulator piston () coupled to a damper (, D) that is contained within a housing (). The damper is surrounded by first (, S) and second (, S) springs that are carried by a lower spring seat (), the lower spring seat being upwardly biased by a third spring (S), for example a wave spring. The first and second springs and the third spring cooperate to provide a counter-force that is tailored to the desired feel of the pedal. First and second sensors measure travel () and force in response to downward compression of the emulator piston, and the damper provides hysteresis upon return travel of the emulator piston. A method comprising: providing a brake pedal emulator () including an emulator piston (), the emulator piston () being operatively coupled to a brake pedal, wherein the brake pedal emulator () is adapted to provide a first force response during a first portion of travel of the emulator piston () and a second force response during a second portion of travel of the emulator piston (); detecting a sequence of actuations of the brake pedal using the brake pedal emulator () for conversion into a selected driver input command; and providing vibratory feedback to the brake pedal using a haptic actuator, the vibratory feedback being in response to the selection of a driver input command.