Patent · US Expired

Protective circuit for a controlling element and method for testing the control circuit of a controlling element

US6382740B1 · kind B1 · utility

4Cited by

5References

19Claims

0Family size

Assignee

Continental Teves AG & Co. OHG · DE

Inventors

Thomas Peichl · Mellrichstadt, DE
Gerhard Möheken · Usingen, DE
Artur Schönbein · Frankfurt am Main, DE

Key dates

Filing date	Aug 11, 2000
Grant date	May 7, 2002
Priority date	—
Expiry date	Aug 11, 2020

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T2270/415
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The invention relates to a circuit arrangement of a circuit of an electrically controlled brake force booster, including a first and a second line that supply two potentials to the connections of the actuator, an electronically actuated first switch provided in the first line, a control device that switches the first switch with a first, preferably pulse-width modulated, control signal, and an electronically actuated second switch provided in the second line, wherein the control circuit switches the second switch with a second control signal. A process for testing this circuit arrangement includes the step of testing at least one potential on at least one connection of the actuator when both switches are open.

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