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:
Aug. 27, 2002
Filed:
Apr. 28, 2000
Pierre A. Zuber, Bethel Park, PA (US);
Richard P. Ames, Jefferson Hills, PA (US);
Nikola V. Langovsky, Clairton, PA (US);
William E. Madden, Jr., Pittsburgh, PA (US);
Steven T H Chang, Export, PA (US);
Robert W. Phillips, Jefferson Hills, PA (US);
Theresa A. Barbour, Monroeville, PA (US);
DaimlerCrysler AG, , DE;
Abstract
A blended electrical/friction braking system includes an electric brake feedback monitor which monitors a first signal corresponding to an electric brake effort request of an electric motor of an electrically powered vehicle. The electric brake feedback monitor detects one or more electrical conditions of the electric motor during electric braking and selectively supplies/terminates the first signal to/from a brake controller as a function of the first signal and the one or more electrical conditions. In response to termination of the first signal thereat, the brake controller causes a friction brake of the vehicle to assume the entire braking effort of the vehicle.