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:
Jan. 29, 1991
Filed:
May. 02, 1990
Walter Hilburger, Nurtingen, DE;
Daimler-Benz AG, , DE;
Abstract
A process and apparatus for controlling an engine-braking system of an internal-combustion engine driving a vehicle is provided with brake flaps arranged in the exhaust-gas lines and constant-throttle valves provided in the cylinder heads. In the event of an activation of the engine-breaking system, the brake flaps are transferred to their closing position and the constant-throttle valves to their opening position. To exclude the possibility that the internal-combustion engine will stop as a result of a sudden decrease in speed during the engine-braking mode, it is proposed to put the brake flaps in their opening position and the constant-throttle valves in their closing position when the speed of the internal-combustion engine falls below a predetermined threshold value.