US5205191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for supercharged engine equipped with automatic transmission
Assignee: Mazda Motor Corp
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Filing: 1991-03-20
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Granted: 1993-04-27
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Expires: 2011-03-20
Abstract
Abstract A control system for supercharging an internal combustion engine equipped with an automatic transmission includes superchargers which provide a variable capacity controlled by a supercharging capacity controller according to a supercharging capacity control pattern. The supercharging capacity is controlled so as increase at engine speeds higher when a demand to shift the automatic transmission to a lower speed gear is present than when a demand to shift the automatic transmission to a higher speed gear is present. Change of supercharging capacity is suspended for a predetermined period of time when a demand to shift the automatic transmission is present.
Inventors
- 👤 Minoru Takata
- 👤 Hiroaki Yokota
- 👤 Hiroyuki Morioka
- 👤 Osamu Yamashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:07
CPC Classifications
B; B60; B60W; B60W10/00; B60W10/04; B60W10/06; B60W10/10; B60W10/11; B60W30/00; B60W30/18; B60W30/1819; F; F02; F02B; F02B37/00; F02B37/007; F02B37/12; F01; F01N; F01N13/00; F01N13/08; F01N13/10; F01N13/107; F16; F16H; F16H63/00; F16H63/40; F16H63/50; F16H63/502; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
130 words
A control system for supercharged internal combustion engine equipped with an automatic transmission, comprising: transmission shift control means for causing the automatic transmission to be shifted to a desired speed gear according to a gear shift control pattern; supercharging means, capable of changing its supercharging capacity, for supercharging the internal combustion engine; and supercharging control means for changing said supercharging capacity of said supercharging means according to a supercharging capacity control pattern; said transmission shift control means switching the supercharging capacity control pattern according to said desired speed gear and causing a delay of any change in said supercharging capacity, according to said supercharging capacity control pattern, by said supercharging control means when said transmission shift control means demands a shift of the automatic transmission to a desired speed gear.
Claim 2
Dependent Claim
130 words
A control system for supercharged internal combustion engine equipped with an automatic transmission, comprising: transmission shift control means for causing the automatic transmission to be shifted to a desired speed gear according to a gear shift control pattern; supercharging means, capable of changing its supercharging capacity, for supercharging the internal combustion engine; and supercharging control means for changing said supercharging capacity of said supercharging means according to a supercharging capacity control pattern; said transmission shift control means switching the supercharging capacity control pattern according to said desired speed gear and causing a delay of any change in said supercharging capacity, according to said supercharging capacity control pattern, by said supercharging control means when said transmission shift control means demands a shift of the automatic transmission to a desired speed gear.
Claim 3
Dependent Claim
57 words
A control system as defined in claim 1, wherein said transmission shift control means causes a predetermined period of delay of any change in said supercharging capacity, according to said supercharging capacity control pattern, by said supercharging control means when said transmission shift control means demands a shift of the automatic transmission to a desired speed gear.
Claim 4
Dependent Claim
59 words
A control system as defined in claim 2, wherein said supercharging control means changes said supercharging capacity so as to increase said supercharging capacity at higher engine speeds when a demand to shift the automatic transmission to a lower speed gear is present than when a demand to shift the automatic transmission to a higher speed gear is present.
Claim 5
Dependent Claim
32 words
A control system as defined in claim 3, wherein said supercharging capacity control pattern comprises a plurality of supercharging capacity control lines selectively used according to speed gears of the automatic transmission.
Claim 6
Dependent Claim
24 words
A control system as defined in claim 4, wherein each of said supercharging capacity control lines is defined by engine speed and throttle opening.
Claim 7
Dependent Claim
26 words
A control system as defined in claim 5, wherein said supercharging control means changes said supercharging capacity of said supercharging means stepwise with said control line.
Claim 8
Dependent Claim
33 words
A control system as defined in claim 6, wherein said supercharging means comprises two superchargers, one of said two superchargers being selectively used to change said supercharging capacity of said supercharging means stepwise.
Claim 9
Dependent Claim
15 words
A control system as defined in claim 7, wherein each said supercharger comprises a turbocharger.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-26 | 1996-10-26 | 1997-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-26 | 2000-10-26 | 2001-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-26 | 2004-10-26 | 2005-04-27 | $7700.00 | Window Closed / Lapsed |