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, 2014
Filed:
Aug. 22, 2008
Shivkumar Duraiswamy, Portland, OR (US);
Dieter Reckels, Portland, OR (US);
Shivkumar Duraiswamy, Portland, OR (US);
Dieter Reckels, Portland, OR (US);
Daimler Trucks North America LLC, Portland, OR (US);
Abstract
A Vehicle Disturbance Estimator determines estimates of a vehicle disturbance force according to vehicle operating conditions. The determined vehicle disturbance force estimate can be used, for example, in connection with controlling a cruise control system for the vehicle, in connection with fuel economy evaluations and testing, and in connection with vehicle diagnostics. A plurality of sets of inputs can be used to determine plural vehicle disturbance estimates for time periods during which a cruise control is on, the vehicle is being driven in the highest gear, and the vehicle is not being braked by any brakes. The plurality of vehicle disturbance estimates can be averaged to provide an output corresponding to an average vehicle disturbance estimate over a plurality of sampling time periods. Kalman filtering can be used to determine the vehicle disturbance estimates. Signals corresponding to the plural disturbance estimates can be provided as an input to a cruise control, with the cruise control then being operable to control the speed of the motor vehicle, based at least in part upon the vehicle disturbance estimate.