Circuit for control of power windows, sun roofs, or door locks in motor vehicles
AssigneeBrose Fahrzeugteile GmbH & Co. KG, Coburg
InventorsJorg Übelein, Volker Aab, Jürgen Seeberger
Life of this patent
Estimating the term…
Abstract
A circuit and a process are used to control operation of an electromagnetic drive arrangement for power window lifters, sun roofs, or door locks of a motor vehicle. After recognition of a failure of functions or parts thereof or electrical or electronic components, emergency operation is initiated. The operation of electromagnetic drive arrangement is enabled by a switching element, and the control level for the control of the switching element is verified by the running of a safety routine before possible emergency operation.
Claims18
A circuit for control of power accessories in motor vehicles with an electromechanical drive arrangement and the circuit switches into an emergency operation after recognition of a failure, the circuit comprising:
- a power driver configured to supply current to the electromechanical drive arrangement;
- at least one connection to the power driver;
- an operating switch configured to be operated by a user in an emergency operation;
- and
- a switching element, such that the power driver can be actuated in an emergency operation, at least, via the operating switch;
- wherein the at least one connection has an input level defined by a logical AND-operation of states of the operating switch and the switching element.
Dependencies are inferred from the claim text.