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:
Dec. 16, 2003
Filed:
Jul. 23, 2002
Eric A. Holloway, Columbus, IN (US);
Abstract
A system is disclosed for implementing a technique for managing torque of a drivetrain. The drivetrain includes an air intake passage having a throttle valve, an internal combustion engine having an output shaft, a transmission having an output shaft, and a rotational propulsion member operatively coupled to the transmission by a propeller a drive axle. The system includes a throttle valve sensor, an engine speed sensor, a transmission speed sensor, a vehicle speed sensor, a transmission controller, and an engine controller. The throttle position sensor provides a throttle position signal that is indicative of a rotational position of the throttle valve. The engine speed sensor provides an engine speed signal that is indicative of a rotational speed of the engine output shaft. The transmission speed sensor provides a transmission speed signal that is indicative of a rotational speed of the transmission output shaft. The vehicle speed sensor provides a vehicle speed signal indicative of a rotational speed of the rotating propulsion member. The transmission controller provides a transmission operation signal that is indicative of an operating state of the transmission. The engine controller is response to all of the signals to provide a fueling meter signal to a fueling system that is indicative of a level of fuel to be supplied to the engine. The engine output shaft generates a torque in response to the fueling meter signal that is within the torque capacity of each component of the drivetrain.