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. 04, 1979
Filed:
Sep. 29, 1977
Uuno V Helava, Hanover, DE;
Jack R Phipps, St. Claire Shores, MI (US);
The Bendix Corporation, Southfield, MI (US);
Abstract
An engine control system is disclosed wherein torque or slip speed of a fluid coupling or torque converter is used for the control of an engine operating parameter, such as ignition spark advance. In the fluid coupling or torque converter, the respective speeds of the impeller and turbine are sensed by sensors which respond to the passing of each blade of the respective impeller and turbine. The speed signals are applied to computing means to produce a control signal corresponding to either slip speed or engine output torque, as desired, according to a predetermined functional relationship of the speed signals. The control signal is applied to control means which is operative to adjust a selected engine operating parameter. In a particular embodiment, the control means includes detecting means for determining changes in the value of the control signal and also includes a controller for the ignition spark advance which advances or retards the ignition in order to optimize the engine output torque.