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. 21, 2000
Filed:
Apr. 01, 1999
Michael J Cari, Berkley, MI (US);
Timothy A Coatesworth, Lake Orion, MI (US);
Mark J Duty, Davison, MI (US);
Chris D Kapolnek, Dearborn, MI (US);
Gregory L Ohl, Ann Arbor, MI (US);
Amit K Sanyal, Troy, MI (US);
Rajiv Saxena, Livonia, IL (US);
Mikhail Zarkhin, Southfield, MI (US);
DaimlerChrysler Corporation, Auburn Hills, MI (US);
Abstract
A method is provided for injecting fuel into an internal combustion engine. The method includes providing the engine with a plurality of fuel injectors, each including an electromechanical mechanism for receiving fuel under pressure via a fuel supply system and for injecting a measured amount of fuel into the engine in response to a command signal whose duration is indicative of the amount of fuel to be injected. The command signal is determined based upon a measured throttle position, engine speed and engine load. A resistance of a solenoid coil of the electromechanical mechanism is then calculated and the command signal is adjusted by incrementing or decrementing the command signal to compensate for variations in the measured resistance of the solenoid coil of electromechanical mechanism due to temperature variations.