Electrically actuatable vehicle brake and method for controlling an electrically actuatable vehicle brake

US7185745B2 · kind B2 · utility

Assignee

• LUCAS AUTOMOTIVE GMBH · DE

Inventors

• Gregor Godlewsky · Bendorf, DE
• Thomas Maur · Neuwied, DE
• Michael Keller · Traisen, DE
• Ralf Leiter · Mendig, DE
• Ralf Kinder · Eitelborn, DE
• Gregor Poertzgen · Koblenz, DE

Key dates

• Filing date: Sep 21, 2004
• Grant date: Mar 6, 2007
• Expiry date: Sep 21, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2200/006
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An electrically driven vehicle brake comprises a brake piston, which acts on at least one friction lining and can be displaced out of an initial position into an actuation position, in which the brake piston abuts the friction lining against a rotating member of the vehicle brake which is to be connected, fixed against rotation, to a wheel of the motor vehicle, and a transmission unit, driven by an electric motor and acting on the brake piston to actuate the brake piston, wherein the electric motor is to be triggered by an electronic control unit, which is also set up to detect performance parameters of the vehicle, the electric motor and/or the vehicle brake. The electronic control unit is set up and programmed to trigger the electric motor by means of a control and evaluation program running in it in such a way that the brake piston is displaced in response to the detecting of at least one predetermined operating condition in a first direction into its actuation position, in which the at least one friction lining abuts against the rotating member, and the brake piston is then displaced by a path corresponding to a predetermined, desired brake release play in a second direction op…