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:
Jul. 31, 2007
Filed:
Jan. 19, 2002
Applicants:
Bernhard Grupp, Weingarten, DE;
Bernhard Reisch, Isny, DE;
Frank Sauter, Meckenbeuren, DE;
Peter Schmidtner, Lindau, DE;
Inventors:
Bernhard Grupp, Weingarten, DE;
Bernhard Reisch, Isny, DE;
Frank Sauter, Meckenbeuren, DE;
Peter Schmidtner, Lindau, DE;
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 8/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A stepped braking system is used as a function of the required braking torque in this method for maintaining a desired braking torque in a vehicle equipped with stepped and infinitely-variable permanent braking systems whereby simultaneous activation of the stepped and infinitely-variable braking systems occurs in such manner that the sum of the participations of the different systems provides the required braking torque at any time.