The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2008
Filed:
Dec. 15, 2005
Hermann Gaessler, Vaihingen, DE;
Juergen Schiemann, Markgroeningen, DE;
Niraimathi Appavu Mariappan, Stuttgart, DE;
Axel Kiefer, Oberriexingen, DE;
Hermann Gaessler, Vaihingen, DE;
Juergen Schiemann, Markgroeningen, DE;
Niraimathi Appavu Mariappan, Stuttgart, DE;
Axel Kiefer, Oberriexingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A device for controlling variable gas exchange valves of an internal combustion engine is provided, in which an actuator control operates gas exchange valves by controlling valve actuators while taking into consideration supplied state variables and control specifications. Before the actuator control is cleared to operate the gas exchange valves, a collision protection device checks at least whether controlling the valve actuators using the supplied control specifications would lead to a collision of a gas exchange valve with an additional gas exchange valve. In response to a detected possible collision, the collision protection device initiates at least one measure that prevents a possible collision.