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:
Nov. 24, 1987
Filed:
Sep. 19, 1985
Makoto Shiozaki, Kariya, JP;
Ichiro Akahori, Anjo, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
Disclosed is an electronically controlled fuel injection system for controlling a fuel quantity to be injected each cylinder of a diesel engine by a fuel injection pump (5), wherein a positioning servo system is employed which is arranged to calculate a control input value of an actuator (82) in accordance with a signal from an actual position sensor (84) and a signal from a fuel quantity control unit (2) so that the actual position of a fuel adjustment member (83) is coincident with a desired position thereof indicated by the signal from the control unit (2). The servo system comprises a minimum time control unit (7) and a speed estimation unit (9). The minimum time control unit (7) derives the control input value from a map established on the basis of the nonlinear dynamic model of the actuator (82) as a function of a deviation between the actual and desired positions, a current passing through the actuator (82) and a speed of the fuel adjustment member estimated by the speed estimation unit (9).