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US4873950A
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Engine start control apparatus
Assignee: Subaru Corp
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Filing: 1988-08-22
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Granted: 1989-10-17
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Expires: 2008-08-22
Abstract
Abstract An engine start control apparatus of the type that the running of the engine is controlled by a controller in accordance with data obtained from at least one sensor mounted on the engine and stored in a backup memory. The engine start control apparatus includes a starting condition detector unit for detecting a start ready state of the engine and outputting a start ready signal, a signal processing unit for processing an output signal from the sensor and storing the processed result into the backup memory in response to the start ready signal from the starting condition detector unit, a start detection unit for detecting the start of the engine and a power supply unit for supplying a power voltage to the controller in response to an output from the start detection means.
Inventors
- 👤 Masaaki Furuyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:06
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/02; F02D41/04; F02D41/06; F02D41/062; F02D41/064
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
127 words
An engine start control apparatus comprising: at least one sensor for detecting an engine condition; a backup memory for storing data obtained by using the content of a detection by said sensor; control means for controlling said engine in accordance with the stored data in said backup memory; starting condition detector means for detecting a start ready state of said engine and outputting a start ready signal; signal processing means for processing said content of a detection by said sensor and storing the processed result into said backup memory when said start ready signal is received; means for detecting a start operation of said engine; and means for supplying a source voltage to said control means in response to an output signal from said start detection means.
Claim 2
Dependent Claim
127 words
An engine start control apparatus comprising: at least one sensor for detecting an engine condition; a backup memory for storing data obtained by using the content of a detection by said sensor; control means for controlling said engine in accordance with the stored data in said backup memory; starting condition detector means for detecting a start ready state of said engine and outputting a start ready signal; signal processing means for processing said content of a detection by said sensor and storing the processed result into said backup memory when said start ready signal is received; means for detecting a start operation of said engine; and means for supplying a source voltage to said control means in response to an output signal from said start detection means.
Claim 3
Dependent Claim
28 words
An engine start control apparatus as set forth in claim 1, wherein said sensor comprises a sensor for detecting the temperature of the cooling water for said engine.
Claim 4
Dependent Claim
21 words
An engine start control apparatus as set forth in claim 1, wherein said starting condition detector means is a door switch.
Claim 5
Dependent Claim
21 words
An engine start control apparatus as set forth in claim 1, wherein said starting condition detector means is an ignition switch.
Claim 6
Dependent Claim
20 words
An engine start control apparatus as set forth in claim 1, wherein said control means includes a constant voltage circuit.
Claim 7
Dependent Claim
25 words
An engine start control apparatus as set forth in claim 1, wherein said control means starts its initialization in response to said start ready signal.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-16 | 1993-04-17 | 1993-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-16 | 1997-04-17 | 1997-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-16 | 2001-04-17 | 2001-10-17 | $7700.00 | Window Closed / Lapsed |