Process for actuating first and second brakes of a vehicle simultaneously

US6719376B1 · kind B1 · utility

Assignee

• WABCO GmbH · DE

Inventors

• Bodo Klein · Barsinghausen, DE
• Axel Stender · Hameln, DE
• Christian Wiehen · Burgwedel, DE
• Norbert Witte · Rodenberg, DE

Key dates

• Filing date: Mar 20, 1996
• Grant date: Apr 13, 2004
• Expiry date: Mar 20, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S303/04
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A process for braking a vehicle having at least first and second brakes, comprises supplying energy to the first and second brakes so as to actuate them, the energy being distributed between the first and second brakes in accordance with the brakes' response energies. Preferably, the momentary values of the response energies are used so that the first and second brakes are actuated simultaneously. The momentary values of the response energies of the brakes may be determined as follows: (a) measuring the existing vehicle deceleration to determine a value of ground-vehicle deceleration, (b) supplying a braking test energy to the brake being tested, (c) measuring the deceleration of the vehicle after the braking test energy has been supplied to the brake being tested in order to determine a value of vehicle test deceleration, (d) comparing the value of ground-vehicle deceleration with the value of vehicle test deceleration, and (e) if the value of vehicle test deceleration is greater than the value of ground-vehicle deceleration by more than a predetermined tolerance value, repeating steps (a) to (d) with a reduced braking test energy until the difference between the value of vehicle …