Patent FR814599A successfully refreshed from Google Patents.
Patent US3223703A successfully refreshed from Google Patents.
Patent US5722362A successfully refreshed from Google Patents.
US5722362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct injection system engine controlling apparatus
Assignee: Hitachi Ltd
•
Filing: 1996-09-26
•
Granted: 1998-03-03
•
Expires: 2016-09-26
Abstract
Abstract A target torque map is determined by an engine rotation number and an acceleration pedal opening degree. Plural control constant groups are provided to correspond the respective target torque map. A fuel precedent control is carried out by the plural constant control groups. By detecting an engine combustion condition, under a worse combustion condition a transfer to a higher torque side is carried out with a time function according to a complementary control of the control constant group. In a direct injection system engine, a controlling apparatus in which a stratified combustion and a homogeneous stoichiometric combustion are easily and stably.
Inventors
- 👤 Yoshiya Takano
- 👤 Mamoru Fujieda
- 👤 Kousaku Shimada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:10
CPC Classifications
F; F02; F02B; F02B33/00; F02B17/00; F02B17/005; F02D; F02D37/00; F02D37/02; F02D41/00; F02D41/02; F02D41/14; F02D41/1497; F02D41/24; F02D41/2406; F02D41/2409; F02D41/2422; F02D41/2425; F02D41/2429; F02D41/2451; F02D41/30; F02D41/3011; F02D41/3017; F02D41/3023; F02D41/3029; F02D41/3076; F02D41/38; F02D2041/389
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
153 words
A direct injection system engine controlling apparatus comprises: a fuel supplying means for directly supplying a fuel to a cylinder of an engine; an inhale air amount controlling means for controlling an amount of an inhale air which is inhaled into said cylinder; an igniting means for igniting a mixture material of the fuel and the air in the cylinder; and a controlling means for controlling at least one of said fuel supplying means, said inhale air amount controlling means, and said igniting means; wherein the direct injection system engine controlling apparatus further comprises: an operation condition detecting means for detecting an operation condition of said engine; and plural control constant groups for storing at least one of a constant, a map and a table for use in said controlling means; in accordance with a detected operation condition detected by said operation condition detecting means, one of said control constant groups is selected.
Claim 2
Dependent Claim
153 words
A direct injection system engine controlling apparatus comprises: a fuel supplying means for directly supplying a fuel to a cylinder of an engine; an inhale air amount controlling means for controlling an amount of an inhale air which is inhaled into said cylinder; an igniting means for igniting a mixture material of the fuel and the air in the cylinder; and a controlling means for controlling at least one of said fuel supplying means, said inhale air amount controlling means, and said igniting means; wherein the direct injection system engine controlling apparatus further comprises: an operation condition detecting means for detecting an operation condition of said engine; and plural control constant groups for storing at least one of a constant, a map and a table for use in said controlling means; in accordance with a detected operation condition detected by said operation condition detecting means, one of said control constant groups is selected.
Claim 3
Dependent Claim
49 words
A direct injection system engine controlling apparatus according to claim 1, wherein among said plural control constant groups, at least one is a control constant group for use in a stratified combustion control, or at least one is a control constant group for use in a stoichometric combustion control.
Claim 4
Dependent Claim
123 words
A direct injection system engine controlling apparatus comprises: a fuel supplying means for directly supplying a fuel to a cylinder of an engine; an inhale air amount controlling means for controlling an amount of an inhale air which is inhaled into said cylinder; an igniting means for igniting a mixture material of the fuel and the air in the cylinder; and a controlling means for controlling at least one of said fuel supplying means, said inhale air amount controlling means, and said igniting means; wherein the direct injection system engine controlling apparatus further comprises: plural control constant groups selected in accordance with a target torque, said target torque is determined from a rotation number of said engine and an acceleration pedal opening degree.
Claim 5
Dependent Claim
123 words
A direct injection system engine controlling apparatus comprises: a fuel supplying means for directly supplying a fuel to a cylinder of an engine; an inhale air amount controlling means for controlling an amount of an inhale air which is inhaled into said cylinder; an igniting means for igniting a mixture material of the fuel and the air in the cylinder; and a controlling means for controlling at least one of said fuel supplying means, said inhale air amount controlling means, and said igniting means; wherein the direct injection system engine controlling apparatus further comprises: plural control constant groups selected in accordance with a target torque, said target torque is determined from a rotation number of said engine and an acceleration pedal opening degree.
Claim 6
Dependent Claim
26 words
A direct injection system engine controlling apparatus according to claim 3, wherein said target torque is controlled by an inhale air flow amount to said engine.
Claim 7
Dependent Claim
31 words
A direct injection system engine controlling apparatus according to claim 1, wherein said plural control constant groups are carried a complementary operation in accordance with a combustion condition of said engine.
Claim 8
Dependent Claim
31 words
A direct injection system engine controlling apparatus according to claim 3, wherein said plural control constant groups are carried a complementary operation in accordance with a combustion condition of said engine.
Claim 9
Dependent Claim
19 words
A direct injection system engine controlling apparatus according to claim 5, wherein said complementary operation has a time function.
Claim 10
Dependent Claim
19 words
A direct injection system engine controlling apparatus according to claim 6, wherein said complementary operation has a time function.
Claim 11
Dependent Claim
24 words
A direct injection system engine controlling apparatus according to claim 4, wherein said air flow amount control is carried out by an electric means.
Claim 12
Dependent Claim
27 words
A direct injection system engine controlling apparatus according to claim 3, wherein a selection range based on said target torque is learned by an engine combustion condition.
Claim 13
Dependent Claim
27 words
A direct injection system engine controlling apparatus according to claim 5, wherein a selection range based on said target torque is learned by an engine combustion condition.
Claim 14
Dependent Claim
106 words
A direct injection engine controlling method, comprising the steps of: directly supplying a fuel to a cylinder of an engine; controlling an amount of air which is inhaled into said cylinder; igniting a mixture material of the fuel and the air in the cylinder; controlling at least one of a fuel supplying means, an inhale air amount controlling means, and an igniting means; detecting an operation condition of said engine; storing with control constant group at least one of a constant, a map and a table for use in said controlling; and selecting one of said control constant groups in accordance with a detected operation condition.
Claim 15
Dependent Claim
106 words
A direct injection engine controlling method, comprising the steps of: directly supplying a fuel to a cylinder of an engine; controlling an amount of air which is inhaled into said cylinder; igniting a mixture material of the fuel and the air in the cylinder; controlling at least one of a fuel supplying means, an inhale air amount controlling means, and an igniting means; detecting an operation condition of said engine; storing with control constant group at least one of a constant, a map and a table for use in said controlling; and selecting one of said control constant groups in accordance with a detected operation condition.
References Cited (Backward Citations)
US5078109A
Cited
US5018498A
Cited
US5078107A
Cited
JPH04241754A
Cited
US5282449A
Cited
US5391127A
Cited
US5458102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-03-02 | 2001-09-01 | 2002-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-03-02 | 2005-09-01 | 2006-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-03-02 | 2009-09-01 | 2010-03-03 | $7700.00 | Window Closed / Lapsed |