Patent US4610146A successfully refreshed from Google Patents.
US4610146A
Expired / Lapsed
US
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Operating control device for air conditioner for use in vehicle
Assignee: Nissan Motor Co Ltd
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Filing: 1984-12-17
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Granted: 1986-09-09
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Expires: 2004-12-17
Abstract
Abstract An operating control device for an air conditioner for use in a vehicle comprises a temperature sensor for sensing the temperature of a fuel supplied into the engine, and a detector switch for detecting deep depression of an accelerator pedal. The operating control device further comprises an operating control circuit comprising a first relay circuit operative when the fuel temperature sensed by the temperature sensor is above a predetermined value, and a second relay circuit operative when the first relay circuit is activated and when it is detected by said detector means that the accelerator pedal has been deeply depressed to interrupt a power supply circuit including the compressor, thereby enabling to securely detect an increase in an engine load during a driving on an ascending load surface to interrupt the operation of the compressor to attain sufficient vehicle drive performance.
Inventors
- 👤 Yukio Tanemura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:18
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32; B60H1/3204; B60H1/3205; B60H1/3208
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
71 words
An operating control device for an air conditioner for use in a vehicle comprising: means for sensing the temperature of fuel supplied into the engine, means for detecting the amount of depression of an accelerator pedal, and means for controlling the operation of a compressor of the air conditioner, wherein said controlling means disables the compressor when said sensing means and said detecting means both detect values exceeding predetermined values, respectively.
Claim 2
Dependent Claim
71 words
An operating control device for an air conditioner for use in a vehicle comprising: means for sensing the temperature of fuel supplied into the engine, means for detecting the amount of depression of an accelerator pedal, and means for controlling the operation of a compressor of the air conditioner, wherein said controlling means disables the compressor when said sensing means and said detecting means both detect values exceeding predetermined values, respectively.
Claim 3
Dependent Claim
59 words
An operating control device of claim 1, wherein said control means comprises a first relay circuit operative when the fuel temperature is above the predetermined value, and a second relay circuit operative to interrupt a power supply circuit including the compressor when said first relay circuit is activated and said detector means detects deep depression of the accelerator pedal.
Claim 4
Dependent Claim
25 words
An operating control device of claim 1, which further comprises means for resuming operation of the compressor when a vehicle speed exceeds a predetermined value.
Claim 5
Dependent Claim
40 words
An operating control device of claim 2 further comprising a vehicle speed sensor and a second control unit, wherein said second control unit bypasses said second relay circuit when a vehicle speed detected by said sensor exceeds a predetermined value.
Claim 6
Dependent Claim
31 words
An operating control device of claim 2, wherein said second relay circuit comprises a timer means for resuming operation of said compressor a predetermined time after interrupting of said power supply.
Claim 7
Dependent Claim
23 words
An operating control device of claim 2 wherein said second relay circuit is a timer relay which resumes operation after a predetermined time.
Claim 8
Dependent Claim
120 words
An operating control device for an air conditioner for use in a vehicle comprising: means for sensing the temperature of fuel supplied to the engine, a first relay circuit operative in response to the fuel temperature detected by said temperature sensing means, said first relay circuit being closed when the fuel temperature exceeds a predetermined value; switching means operative in response to the operation of an accelerator pedal, said switching means being closed when the accelerator pedal is deeply depressed; and a second relay circuit operative in response to said first relay circuit and said switching means, said second relay circuit disabling a compressor of the air conditioner when said first relay circuit and said switching means are both closed.
Claim 9
Dependent Claim
120 words
An operating control device for an air conditioner for use in a vehicle comprising: means for sensing the temperature of fuel supplied to the engine, a first relay circuit operative in response to the fuel temperature detected by said temperature sensing means, said first relay circuit being closed when the fuel temperature exceeds a predetermined value; switching means operative in response to the operation of an accelerator pedal, said switching means being closed when the accelerator pedal is deeply depressed; and a second relay circuit operative in response to said first relay circuit and said switching means, said second relay circuit disabling a compressor of the air conditioner when said first relay circuit and said switching means are both closed.
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) | 1989-09-08 | 1990-03-10 | 1990-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-08 | 1994-03-10 | 1994-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-08 | 1998-03-10 | 1998-09-09 | $7700.00 | Window Closed / Lapsed |