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:
Mar. 26, 1991
Filed:
Apr. 07, 1989
Gerhard Kolberg, Buehl-Weitenung, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An apparatus to control an internal combustion engine in vehicles, containing a set point value transducer which is adjustable by means of a drive lever, a control motor driving a throttle valve, and control electronics which use the output signals from the set point value transducer to generate a control signal for the control motor. In order to maintain emergency operation in the event of a failure of the electric controls, an emergency operation system directly transmits the drive lever or gas pedal position to the throttle valve. To insure the engagement of the emergency operation system in the event of problem on the one hand, and to prevent additional friction being exerted on the control motor during normal operation on the other, the emergency operation system contains a coupling whose one coupling element is firmly fixed to the throttle valve and whose other coupling element is permanently attached to the drive lever. The coupling is comprised such that the two coupling elements do not mesh during normal operation, and automatically mesh if a problem arises.