Interrelated power delivery controls – including engine control – Transmission control – Engine controlled by transmission
Patent
1998-06-18
2000-03-28
Ta, Khoi Q.
Interrelated power delivery controls, including engine control
Transmission control
Engine controlled by transmission
701 94, B60K 4104
Patent
active
060425059
ABSTRACT:
A system for controlling operation of an internal combustion engine includes a control computer responsive to a number of engine/vehicle operating conditions to control engine operation to thereby control engine speed and engine or vehicle acceleration. In one embodiment, the control computer is configured to determine an engine or vehicle acceleration limit value based on current engine or vehicle speed, and an engine speed limit value based on current engine load, and to control engine fueling and/or speed to thereby limit engine speed to the engine speed limit value and/or engine/vehicle acceleration to the engine/vehicle acceleration limit value. In another embodiment, the control computer is configured to determine a pseudo-load value, which is preferably a vehicle mass value and/or road grade value estimated from current vehicle acceleration and engine fueling conditions, determine an engine speed limit value based on the pseudo-load value and current vehicle speed, and control engine speed and/or fueling to thereby limit engine speed to the pseudo-load-based engine speed limit value. In either case, the concepts of the present invention provide for increased fuel economy by limiting engine speed and/or acceleration during shifting, while providing for additional engine speed, and correspondingly higher engine power, when there exists a legitimate need therefore.
REFERENCES:
patent: 4217867 (1980-08-01), Madsen et al.
patent: 4252096 (1981-02-01), Kennedy
patent: 4805579 (1989-02-01), Toshimitsu et al.
patent: 5019986 (1991-05-01), Londt et al.
patent: 5083277 (1992-01-01), Shutler
patent: 5189621 (1993-02-01), Onari et al.
patent: 5447138 (1995-09-01), Barnes
patent: 5457633 (1995-10-01), Palmer et al.
patent: 5738606 (1998-04-01), Bellinger
Caterpillar, "Lower Gears Engine RPM Limit," Programming Cat Electronic Truck Engines, p. 51-55, (Aug. 3, 1996).
Detroit Diesel Corporation, "Progressive Shift," DDEC III Application and Installation, p. 19-1-19-3, (March 3, 1995).
Cummins Engine Company, Inc.
Ta Khoi Q.
LandOfFree
System for controlling operation of an internal combustion engin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for controlling operation of an internal combustion engin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for controlling operation of an internal combustion engin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1321588