US4720792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for controlling operation of a throttle
Assignee: Fujitsu Ltd
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Filing: 1984-11-26
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Granted: 1988-01-19
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Expires: 2004-11-26
Abstract
Abstract A method for controlling operation of a throttle valve in an automatic transmission system for automobiles using a microcomputer, including the steps of: (a) detecting an accelerator position, an engine rotational speed, a clutch stroke, a change lever position, an input shaft rotational speed, and a transmission gear position by a transmission gear position sensor; (b) comparing the data determined in step (a) with a predetermined transmission map and a throttle valve operation speed map each stored in a memory of the microcomputer, and calculating the throttle valve operation speed for various driving conditions; and (c) controlling the operation of the throttle valve through a throttle actuator based on a control signal generated from the throttle valve operation speed map. An apparatus for controlling the operation of a throttle valve in an automatic transmission system for automobiles, including a device for detecting operation data for automobiles, a device for comparing the detected data with a predetermined transmission map and a throttle valve operation speed map, a device for determining the throttle valve operation speed based on the compared data, and a device for controlling the operation of a throttle valve based on a control signal generated in accordance with the throttle valve operation speed map.
Inventors
- 👤 Hitoshi Kasai
- 👤 Makoto Uriuhara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:25
CPC Classifications
B; B60; B60W; B60W10/00; B60W10/04; B60W10/06; B60W10/02; B60W10/10; B60W10/11; B60W30/00; B60W30/18; B60W30/19; F; F16; F16H; F16H63/00; F16H63/40; F16H63/50; F16H63/502; B60W2510/00; B60W2510/06; B60W2510/0638; B60W2710/00; B60W2710/02; B60W2710/021; B60W2710/06; B60W2710/0605; F16H61/00; F16H2061/0075; F16H2061/0096; F16H59/00; F16H59/14; F16H59/18; F16H59/36; F16H59/38; F16H59/40; F16H59/42; F16H59/50; F16H59/56
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
163 words
A method for operating a throttle valve in a vehicle having an automatic transmission system using a microcomputer, comprising the steps of: (a) detecting an accelerator position with an accelerator position sensor, an engine rotational speed with an engine speed sensor, a clutch stroke with a clutch stroke sensor provided on a clutch actuator and a clutch position sensor, a change lever position with a lever position sensor, an input shaft rotational speed with an input shaft rotational speed sensor, and a transmission gear position with a transmission gear position sensor; (b) comparing the data detected in step (a) with contents of a predetermined transmission map and a predetermined throttle valve operation speed map stored in a memory of said microcomputer, and determining the throttle valve operating speed for various driving conditions; and (c) controlling the operation of the throttle valve through a throttle actuator based on a control signal generated in accordance with the throttle valve operating speed determined in step (b).
Claim 2
Independent Claim
163 words
A method for operating a throttle valve in a vehicle having an automatic transmission system using a microcomputer, comprising the steps of: (a) detecting an accelerator position with an accelerator position sensor, an engine rotational speed with an engine speed sensor, a clutch stroke with a clutch stroke sensor provided on a clutch actuator and a clutch position sensor, a change lever position with a lever position sensor, an input shaft rotational speed with an input shaft rotational speed sensor, and a transmission gear position with a transmission gear position sensor; (b) comparing the data detected in step (a) with contents of a predetermined transmission map and a predetermined throttle valve operation speed map stored in a memory of said microcomputer, and determining the throttle valve operating speed for various driving conditions; and (c) controlling the operation of the throttle valve through a throttle actuator based on a control signal generated in accordance with the throttle valve operating speed determined in step (b).
Claim 3
Dependent Claim
36 words
A method as claimed in claim 1, wherein further comprising the step of determining a suitable gear position based on automobile speed and throttle valve angle in accordance with the contents of said predetermined transmission map.
Claim 4
Dependent Claim
41 words
A method as claimed in claim 1, wherein step (b) further comprises calculating the throttle valve operation speed based on an accelerator position, gear position, and select level position in accordance with the contents of said throttle valve operation speed map.
Claim 5
Dependent Claim
25 words
A method as claimed in claim 1, further comprising the step of storing said transmission map and throttle valve operation speed map in a ROM.
Claim 6
Dependent Claim
46 words
A method as claimed in claim 1, wherein step (b) further comprises controlling said throttle valve operation speed based on the contents of said transmission map and throttle valve operation speed map in accordance with the various traveling conditions of said automobile detected in step (a).
Claim 7
Dependent Claim
44 words
A method as claimed in claim 1, wherein said throttle valve operation is controled in accordance with the stepped stroke of an accelerator pedal detected by said accelerator position sensor and in accordance with the engine rotational speed detected by said engine speed sensor.
Claim 8
Independent Claim
113 words
An apparatus for controlling operation of a throttle valve in a vehicle having an automatic transmission system, comprising: sensor means for detecting an accelerator position, an engine rotational speed, a clutch stroke, a change lever position, an input shaft rotational speed, and a transmission gear position; and microcomputer means for controlling operation of the throttle valve by comparing the detected data with contents of a predetermined transmission map and a predetermined throttle valve operation speed map, determining a throttle valve operating speed based on the compared data, and controlling the operation of the throttle valve through a throttle actuator based on a control signal generated in accordance with the throttle valve operating speed.
Claim 9
Independent Claim
113 words
An apparatus for controlling operation of a throttle valve in a vehicle having an automatic transmission system, comprising: sensor means for detecting an accelerator position, an engine rotational speed, a clutch stroke, a change lever position, an input shaft rotational speed, and a transmission gear position; and microcomputer means for controlling operation of the throttle valve by comparing the detected data with contents of a predetermined transmission map and a predetermined throttle valve operation speed map, determining a throttle valve operating speed based on the compared data, and controlling the operation of the throttle valve through a throttle actuator based on a control signal generated in accordance with the throttle valve operating speed.
Claim 10
Dependent Claim
24 words
An apparatus as claimed in claim 7, wherein said microcomputer includes a ROM for storing said transmission map and throttle valve operation speed map.
Claim 11
Dependent Claim
30 words
An apparatus as claimed in claim 7 wherein said microcomputer means includes a ROM for storing said throttle valve operation speed map, a comparator, a counter, and a drive circuit.
Claim 12
Independent Claim
104 words
A method for operating a throttle valve in a vehicle having an automatic transmission system using a microcomputer, comprising the steps of: (a) detecting operating data for the vehicle; (b) comparing the operating data detected in step (a) with contents of a predetermined transmission map and a predetermined throttle valve operation speed map; (c) determining a throttle valve operating speed in accordance with the comparison of the operating data with the contents of the transmission map and the throttle valve operation speed map; and (d) controlling the operation of the throttle valve in accordance with the throttle valve operating speed determined in step (c).
Claim 13
Independent Claim
104 words
A method for operating a throttle valve in a vehicle having an automatic transmission system using a microcomputer, comprising the steps of: (a) detecting operating data for the vehicle; (b) comparing the operating data detected in step (a) with contents of a predetermined transmission map and a predetermined throttle valve operation speed map; (c) determining a throttle valve operating speed in accordance with the comparison of the operating data with the contents of the transmission map and the throttle valve operation speed map; and (d) controlling the operation of the throttle valve in accordance with the throttle valve operating speed determined in step (c).
Claim 14
Independent Claim
97 words
An apparatus for controlling the operation of a throttle valve in a vehicle having an automatic transmission system, comprising: sensor means for detecting operating data for the vehicle; and microcomputer means for controlling the throttle valve by comparing the operating data with data from a predetermined transmission map and a predetermined throttle valve operation speed map, determining a throttle valve operating speed based on the comparison of the operating data with the transmission map and the throttle valve operation speed map, and controlling the operation of the throttle valve in accordance with the throttle valve operating speed.
Claim 15
Independent Claim
97 words
An apparatus for controlling the operation of a throttle valve in a vehicle having an automatic transmission system, comprising: sensor means for detecting operating data for the vehicle; and microcomputer means for controlling the throttle valve by comparing the operating data with data from a predetermined transmission map and a predetermined throttle valve operation speed map, determining a throttle valve operating speed based on the comparison of the operating data with the transmission map and the throttle valve operation speed map, and controlling the operation of the throttle valve in accordance with the throttle valve operating speed.
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) | 1991-01-18 | 1991-07-20 | 1992-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-18 | 1995-07-20 | 1996-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-18 | 1999-07-20 | 2000-01-19 | $7700.00 | Window Closed / Lapsed |