Electronically controlled wastegate valve for a turbo charger

Details Electronically controlled wastegate valve for a turbo charger Electronically controlled wastegate valve for a turbo charger

1996-09-03

1998-10-06

Koczo, Michael

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

F02B 3712

Patent

active

058160477

ABSTRACT:
An electronically controlled wastegate valve is adjusted so that the pressure drop across a throttle in the engine approaches an adaptively generated, desired throttle pressure reserve value. The desired throttle pressure reserve value is based at least in part on a history of the engine load. In the preferred embodiment, the engine speed is used as a surrogate for engine load to determine the desired throttle pressure reserve value. The desired throttle pressure reserve value is preferably pushed downward over time by use of a constant negative gain term in the electronic controller. In this manner, the wastegate control provides sufficient throttle pressure reserve for satisfactory load acceptance when engine load is fluctuating, yet minimizes throttle pressure reserve to improve engine fuel consumption when the engine load is relatively steady.

REFERENCES:
patent: 3195805 (1965-07-01), Cholvin et al.
patent: 3257796 (1966-06-01), Updike
patent: 3941035 (1976-03-01), Mueller
patent: 4005578 (1977-02-01), McInerney
patent: 4005579 (1977-02-01), Lloyd
patent: 4424675 (1984-01-01), Ojima
patent: 4449367 (1984-05-01), Moriguchi et al.
patent: 4459809 (1984-07-01), Tadokoro et al.
patent: 4468928 (1984-09-01), Suzuki
patent: 4528816 (1985-07-01), Arnaud
patent: 4548038 (1985-10-01), Matsuki
patent: 4612900 (1986-09-01), Iwata et al.
patent: 4651561 (1987-03-01), Ueno et al.
patent: 4656834 (1987-04-01), Elpern
patent: 4763475 (1988-08-01), Toshio et al.
patent: 4848086 (1989-07-01), Inoue et al.
patent: 4970864 (1990-11-01), Kazuo et al.
patent: 5036669 (1991-08-01), Earleson et al.
patent: 5083434 (1992-01-01), Dahlgren et al.
patent: 5119633 (1992-06-01), Brooks et al.
patent: 5142868 (1992-09-01), Woon et al.
patent: 5155998 (1992-10-01), Monden
patent: 5199261 (1993-04-01), Baker
patent: 5214919 (1993-06-01), Jiewertz et al.
patent: 5224853 (1993-07-01), Kazuo et al.
patent: 5228292 (1993-07-01), Hanauer et al.
patent: 5271228 (1993-12-01), Kawakami
patent: 5289683 (1994-03-01), Kurihara
patent: 5400597 (1995-03-01), Mirabile
patent: 5408979 (1995-04-01), Backlund et al.
patent: 5442920 (1995-08-01), Kamel et al.
patent: 5454225 (1995-10-01), Sumser et al.

Affiliated with

Also associated with

Rating

Electronically controlled wastegate valve for a turbo charger does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronically controlled wastegate valve for a turbo charger, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronically controlled wastegate valve for a turbo charger will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-67746