Method for maintaining a desired braking torque

US7249810B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Bernhard Grupp · Weingarten, DE
• Bernhard Reisch · Isny im Allgäu, DE
• Frank Sauter · Munderkingen, DE
• Peter Schmidtner · Gettorf, DE

Key dates

• Filing date: Jan 19, 2002
• Grant date: Jul 31, 2007
• Expiry date: Jan 19, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T13/585
• WIPO field: Transport
• WIPO sector: Mechanical engineering

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.