Control method for a vehicle having an engine

Details Control method for a vehicle having an engine Control method for a vehicle having an engine

2001-07-03

2002-12-03

Kwon, John (Department: 3754)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

C123S184550

Reexamination Certificate

active

06490643

ABSTRACT:

FIELD OF THE INVENTION
The field of the invention relates to vehicle control, wherein the vehicle is powered by an internal combustion engine having a compression device.
BACKGROUND OF THE INVENTION
To obtain improved engine power to displacement for improved vehicle driveability, turbo charging, or supercharging has been used. In this system, engine performance is increased by compressing air entering and engine intake manifold, thereby forcing more air into an engine cylinder. The engine then produces increased engine torque. Such an approach is advantageous in improving vehicle fuel economy by reducing engine size and weight while obtaining equal maximum engine performance.
The inventors herein have found a disadvantage with the above approach. In particular, the phenomena known as “turbo lag” degrades drive performance during transient driver commands. For example, at lower engine speeds and low engine torques, when a driver requests a rapid increase in torque, there is a delay since the turbo charger first builds up speed and the engine manifold then builds pressure. These combined delays produce “turbo lag”.
SUMMARY OF THE INVENTION
An object of the present invention is to provide an engine control method capable of reducing delayed response from an engine coupled to a compression device.
The above object is achieved and disadvantages of prior approaches overcome by a method for controlling an engine having at least one cylinder, the engine also having an intake manifold and an outlet control device for controlling flow from the intake manifold into the cylinder, the intake manifold coupled to a compression device for compressing the flow into the intake manifold, comprising: generating an operator command; and controlling flow into the cylinder by changing the outlet control device to control flow into the cylinder based on said operator command.
By using the outlet control device to rapidly adjust flow into the cylinder faster than possible by using the inlet control device, it is possible to compensate for compression device response delays. In other words, the rapid increase in cylinder charge can mask the compression device delay, thereby giving good drive feel and the benefits of a compression device.
An advantage of the above aspect of the invention is that improved fuel economy is achieved.
Other objects, features and advantages of the present invention will be readily appreciated by the reader of this specification.


REFERENCES:
patent: 3548798 (1970-12-01), Fleischer et al.
patent: 4084568 (1978-04-01), Sato et al.
patent: 4494506 (1985-01-01), Hayama et al.
patent: 4592315 (1986-06-01), Kobayashi et al.
patent: 4651684 (1987-03-01), Masuda et al.
patent: 4700684 (1987-10-01), Pischinger et al.
patent: 4856465 (1989-08-01), Denz et al.
patent: 5019989 (1991-05-01), Ueda et al.
patent: 5022357 (1991-06-01), Kawamura
patent: 5101786 (1992-04-01), Kamio et al.
patent: 5115782 (1992-05-01), Klinke et al.
patent: 5152267 (1992-10-01), Komatsu et al.
patent: 5168851 (1992-12-01), Itoyama et al.
patent: 5170759 (1992-12-01), Ito
patent: 5199403 (1993-04-01), Akazaki et al.
patent: 5357932 (1994-10-01), Clinton et al.
patent: 5365908 (1994-11-01), Takii et al.
patent: 5396874 (1995-03-01), Hitomi et al.
patent: 5414994 (1995-05-01), Cullen et al.
patent: 5548995 (1996-08-01), Clinton et al.
patent: 5606960 (1997-03-01), Takahashi et al.
patent: 5628290 (1997-05-01), Iida et al.
patent: 5635634 (1997-06-01), Reuschenbach et al.
patent: 5654501 (1997-08-01), Grizzle et al.
patent: 5666916 (1997-09-01), Fugieda et al.
patent: 5676112 (1997-10-01), Bauer et al.
patent: 5690071 (1997-11-01), Jankovic
patent: 5692471 (1997-12-01), Zhang
patent: 5712786 (1998-01-01), Ueda
patent: 5724927 (1998-03-01), Suzuki
patent: 5740045 (1998-04-01), Livshiz et al.
patent: 5746176 (1998-05-01), Damson et al.
patent: 5758493 (1998-06-01), Asik
patent: 5765527 (1998-06-01), Lehner et al.
patent: 5803043 (1998-09-01), Bayron et al.
patent: 5848529 (1998-12-01), Katoh et al.
patent: 5857437 (1999-01-01), Ysohioka
patent: 5896840 (1999-04-01), Takahashi
patent: 5913298 (1999-06-01), Yoshikawa
patent: 5950603 (1999-09-01), Cook et al.
patent: 5957096 (1999-09-01), Clarke et al.
patent: 5964201 (1999-10-01), Dickers et al.
patent: 5967114 (1999-10-01), Yasuoka
patent: 6000375 (1999-12-01), Isobe
patent: 6006724 (1999-12-01), Takahashi et al.
patent: 6006725 (1999-12-01), Stefanopoulou et al.
patent: 6009851 (2000-01-01), Iida et al.
patent: 6024069 (2000-02-01), Yoshino
patent: 6039026 (2000-03-01), Shiraishi et al.
patent: 6055476 (2000-04-01), Yoshino
patent: 6058906 (2000-05-01), Yoshino
patent: 6070567 (2000-06-01), Kakizaki et al.
patent: 6095117 (2000-08-01), Minowa et al.
patent: 6101993 (2000-08-01), Lewis et al.
patent: 6148791 (2000-11-01), Fujieda et al.
patent: 6170475 (2001-01-01), Lewis et al.
patent: 6178371 (2001-01-01), Light et al.
patent: 6182636 (2001-02-01), Russell et al.
patent: 6196173 (2001-03-01), Takahashi et al.
patent: 3916605 (1989-11-01), None
patent: 4209684 (1993-09-01), None
patent: 4321413 (1995-01-01), None
patent: 19847851 (1999-04-01), None
patent: 376703 (1990-07-01), None
patent: 0440314 (1991-08-01), None
patent: 0560476 (1993-09-01), None
patent: 0990775 (2000-04-01), None
patent: 1020625 (2000-07-01), None
patent: 2315571 (1998-02-01), None
patent: 2338085 (1999-12-01), None
patent: 59-194058 (1984-11-01), None
patent: 60-240828 (1985-11-01), None
patent: 62-101825 (1987-05-01), None
patent: 63-032122 (1988-02-01), None
patent: 1-100316 (1989-04-01), None
patent: 2-176115 (1990-07-01), None
patent: 3-009021 (1991-01-01), None
patent: 4-143410 (1992-05-01), None
patent: 4-148023 (1992-05-01), None
patent: 5-086913 (1993-09-01), None
patent: 9-125994 (1997-02-01), None
patent: 9-256880 (1997-09-01), None
patent: 9-303165 (1997-11-01), None
patent: 10-037772 (1998-04-01), None
patent: 10-220256 (1998-06-01), None
patent: 10-288056 (1998-08-01), None
patent: 10-288055 (1998-10-01), None
patent: 11-062643 (1999-03-01), None
patent: 11-270368 (1999-10-01), None
patent: 99/47800 (1999-09-01), None

Affiliated with

Also associated with

Rating

Control method for a vehicle having an engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control method for a vehicle having an engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control method for a vehicle having an engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2992674