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:
May. 12, 1998
Filed:
Sep. 06, 1995
Davorin David Hrovat, Dearbrn, MI (US);
Daniel Scott Colvin, Farmington, MI (US);
Michael Alan Weyburne, Northville, MI (US);
Ngoc Minh Tran, Dearborn, MI (US);
John Loring Yester, Bloomfield, MI (US);
Ford Global Technologies, Inc., Dearborn, MI (US);
Abstract
A vehicle traction control system is controlled in-part by a signal value indicative of estimated wheel torque. The estimated wheel torque value is produced within the vehicle's electronic engine control (EEC) module by summing a first value which indicated the estimated torque attributable to engine combustion and a second value which is proportional to engine acceleration/deceleration which indicates the amount of torque attributable to the inertial movement of engine and drive train masses. Before summing the two signal components, the signal which indicates combustion torque is delayed with respect to the signal indicating inertial torque by a delay interval whose duration varies with engine speed to take into account the delay between intake fuel rate changes and combustion forces as well as delays attributable to the timing of the calculations themselves.