Patent Number: 8,794,720

Title: Method for the secured release of an electromechanically actuable parking brake

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 (I.sub.max), corresponding to a brake application force (F), is reached; detection of a travel distance (x.sub.0) of the piston corresponding to the brake application force (F) of the brake caliper in a locked state; determination of a second travel distance (x.sub.1) by adding a further travel distance value (x.sub.11), which corresponds to the desired clearance value, to form (x.sub.0); driving of the electric motor until the second travel distance (x.sub.1) 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 (x.sub.12) has been covered.

Inventors: Schumann; Marcus (Edingen-Neckarhausen, DE), Maron; Christof (Kelkheim, DE), Volkel; Jurgen (Frankfurt am Main, DE)

Assignee: Continental Teves AG & Co. oHG

International Classification: B60T 13/00 (20060101); B60T 8/72 (20060101); B60T 8/32 (20060101)

Expiration Date: 8/05/12018