Patent · US Active

Method for the secured release of an electromechanically actuable parking brake

US8794720B2 · kind B2 · utility

6Cited by

4References

6Claims

0Family size

Assignee

Continental Teves AG & Co. OHG · DE

Inventors

Marcus Schumann · Edingen-Neckarhausen, DE
Christof Maron · Kelkheim, DE
Jurgen Volkel · Frankfurt, DE

Key dates

Filing date	Sep 3, 2008
Grant date	Aug 5, 2014
Priority date	—
Expiry date	May 21, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D2125/52
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A method to limit overheating of a brake equipped with an electromechanically actuable parking brake including the steps of: driving a threaded spindle by an electric motor until a power drain (Imax), corresponding to a brake application force (F), is reached; detection of a travel distance (x0) of the piston corresponding to the brake application force (F) of the brake caliper in a locked state; determination of a second travel distance (x1) by adding a further travel distance value (x11), which corresponds to the desired clearance value, to form (x0); driving of the electric motor until the second travel distance (x1) has been covered by the brake piston; and comparing the vehicle speed with a predefined first speed value, at the upward transgression of which the electric motor is driven once more in the release direction until a further, previously defined travel distance (x12) has been covered.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.