Russell T Fahlberg from 6909 Deford Rd, Lake Of The Woods, IL 61525, age 69, Phone: 309-243-5466

Control System For Operating A Vehicle Within A Limited Engine Speed Range
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US Patent:

20040128047, Jul 1, 2004
Filed:

Dec 30, 2002
Appl. No.:

10/334050
Inventors:

Jeffrey Graves - Lacon IL, US
Russell Fahlberg - Dunlap IL, US
Jeffrey Smith - Metamora IL, US
International Classification:

G06F019/00
US Classification:

701/054000, 701/051000
Abstract:

Although there are various combinations of engine speed and transmission state that correspond to a selected vehicle speed and load, there is one combination that best achieves a predetermined criteria. The present invention relates to a vehicle including a control system that electronically controls engine speed and transmission state in order to best achieve the predetermined criteria, such as fuel economy. There is an electronic control module including a power train algorithm that is in control communication with the transmission and the engine. The predetermined criteria is achieved by establishing a limited engine speed range that is less than an entire engine speed range, and restricting engine speed, via the power train algorithm, to the limited engine speed range. The power train algorithm is also operable to determine a combination of the engine speed, within the limited engine speed range, and transmission state that corresponds to a selected vehicle speed and the predetermined criteria.