Patent US2559425A successfully refreshed from Google Patents.
US4884057A
Expired / Lapsed
US
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Push button automatic transmission control device
Assignee: Renault SA
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Filing: 1987-06-22
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Granted: 1989-11-28
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Expires: 2007-06-22
Abstract
Abstract An electromechanical device for easily selecting and engaging different driving modes while an automatic transmission of a motor vehicle is in a forward driving position. Push buttons are positioned so as to be within easy reach of a driver's fingers while the driver is operating the motor vehicle. Each push button corresponds to a particular driving mode. By pressing a push button the gear needed to effectuate the selected mode of operation is activated. The push buttons are electrically connected to a digital control means which controls the implementation and cancellation of the gears used for realizing the selected driving mode.
Inventors
- 👤 Francois Leorat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:03
CPC Classifications
B; B60; B60K; B60K20/00; B60K20/02; B60K20/06; B60K20/08; B60K35/00; B60K35/10; F; F16; F16H; F16H59/00; F16H59/02; F16H59/08; F16H59/12; F16H2059/006; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20238; Y10T74/20244; Y10T74/20256
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
126 words
An electromechanical control device for selecting and engaging a plurality of gears, located in an automatic transmission of a motor vehicle, while said motor vehicle is operated in a drive position comprising: a plurality of push buttons positioned so that a driver of said motor vehicle can touch said plurality of push buttons with his fingers while holding a steering wheel; a digital control means for engaging a particular gear of said plurality of gears corresponding to a driving mode selected by said driver when said driver pushes a designated push button of said plurality of push buttons, said plurality of push buttons being connected to said digital control means, and said digital control means functioning only when said motor vehicle is in a drive position.
Claim 2
Dependent Claim
126 words
An electromechanical control device for selecting and engaging a plurality of gears, located in an automatic transmission of a motor vehicle, while said motor vehicle is operated in a drive position comprising: a plurality of push buttons positioned so that a driver of said motor vehicle can touch said plurality of push buttons with his fingers while holding a steering wheel; a digital control means for engaging a particular gear of said plurality of gears corresponding to a driving mode selected by said driver when said driver pushes a designated push button of said plurality of push buttons, said plurality of push buttons being connected to said digital control means, and said digital control means functioning only when said motor vehicle is in a drive position.
Claim 3
Dependent Claim
76 words
A control device according to claim 1, wherein: when said designated push button of said plurality of push buttons is selected, a previously selected gear of said plurality of gears is disengaged and said particular gear corresponding to said driving mode is engaged; said driving mode is cancelled when said designated push button is pushed twice in succession; and said driving mode is cancelled when said motor vehicle is operated other than in a drive position.
Claim 4
Dependent Claim
28 words
A control device according to claim 1, wherein: each push button of said plurality of push buttons has a corresponding indicator light corresponding to an individual selected gear.
Claim 5
Dependent Claim
35 words
A control device according to claim 1, wherein: said plurality of push buttons are mounted on a console fastened laterally to the column of said steering wheel on the passenger side of said motor vehicle.
Claim 6
Dependent Claim
27 words
A control device according to claim 4, wherein: said console comprises activation means for activating other control means for controlling other operating systems of said motor vehicle.
Claim 7
Dependent Claim
52 words
A control device according to claim 1, wherein: said plurality of push buttons are mounted on the dash board within easy access of said driver such that said driver can touch said plurality of push buttons with the fingers of one hand while holding the steering wheel with said driver's other hand.
Claim 8
Dependent Claim
22 words
A control device according to claim 6, wherein: each push button of said plurality of push buttons has an integrated indicator light.
Claim 9
Dependent Claim
116 words
A control device according to claim 1, wherein said digital control means further comprises a plurality of electrical networks, each network of said plurality of electrical networks further comprising: a specific circuit; a switch connecting to an input of said specific circuit; and an OR gate connected to a second input of said specific circuit, said OR gate having an input which receives a signal D such that each time signal D equals 1 said specific circuit has an output S of 0, and when signal D equals 0 and said switch causes a pulse to appear, the output of said OR gate goes to 1 and said specific circuit sets its output S at 0.
Claim 10
Dependent Claim
19 words
A control device according to claim 8, wherein: a management computer connects to the output of said specific circuit.
Claim 11
Dependent Claim
42 words
A control device according to claim 8, wherein: said specific circuit is comprised of a plurality of interconnected negated-input AND gates, said plurality of interconnected negated-input AND gates comprising a first negated-input AND gate acting as said input of said specific circuit.
Claim 12
Dependent Claim
25 words
A control device according to claim 8, wherein; said specific circuit for each network of said plurality of electrical networks has a corresponding selected gear.
Claim 13
Dependent Claim
29 words
A control device according to claim 11, wherein: the output of said specific circuit for each network of said plurality of electrical networks is connected to an indicator light.
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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) | 1992-11-27 | 1993-05-29 | 1993-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-27 | 1997-05-29 | 1997-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-27 | 2001-05-29 | 2001-11-28 | $7700.00 | Window Closed / Lapsed |