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:
Apr. 15, 1980
Filed:
May. 08, 1978
Chun-Keung Leung, Farmington, MI (US);
The Bendix Corporation, Southfield, MI (US);
Abstract
A warm-up control for a closed loop engine roughness control responsive to engine load and engine temperature is disclosed herein. The warm-up control provides a first correction signal to the closed loop engine roughness control operative to increase the effective value of the roughness signal in response to a signal indicative of a load being applied to the engine and the engine temperature being below a predetermined temperature and a second correction signal to the closed loop engine roughness control operative to decrease the effective value of the roughness signal in response to a signal indicative of a light engine load and the engine temperature being below a predetermined temperature. The control also generates a transient signal in response to a sudden increase of the engine's load operative to cause the closed loop engine roughness control to generate a fixed output signal for a predetermined length of time. The fuel control computer in response to the fixed output signal generates signals increasing the fuel delivery to the engine to prevent the engine from stumbling or stalling with the application of the load.