US5070740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shifting arrangement for an automatic transmission of a motor vehicle
Assignee: Dr Ing HCF Porsche AG
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Filing: 1990-08-15
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Granted: 1991-12-10
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Expires: 2010-08-15
Abstract
Abstract A shifting arrangement for an automatic transmission of a motor vehicle, which is influenced by an electronic control unit, comprises a selector lever which can be pivoted in two shifting paths. Via the selector lever, operating positions and automatically shifting transmission gears can be selected in the first shifting path. In the second shifting path, individual gears can be shifted in such a manner (step-by-step shifting) that upshifting and return shifting may take place from a center position of the selector lever. The individual gears are shifted using the selector lever by electronic sensors. These sensors are formed by switches which interact with devices which try to hold the selector lever in its neutral center position.
Inventors
- 👤 Manfred Giek
- 👤 Hans-Dieter Schuette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:24
CPC Classifications
F; F16; F16H; F16H59/00; F16H59/02; F16H59/0204; B; B60; B60K; B60K20/00; B60K20/02; F16H2059/006; F16H2059/0239; F16H2059/026; F16H59/08; F16H59/10; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19251; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20067
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
220 words
A shifting arrangement for an automatic transmission of a motor vehicle which is influenced by an electronic control unit, comprising: a selector lever pivotable in a first shifting path to select several operating positions and automatically shifting transmission gears, movable via a transverse path into a second shifting path parallel with respect to the first shifting path, a pivoting of the selector lever in a first direction from a neutral center position in the second shifting path causing an upshifting by one gear and a pivoting in a second direction from the neutral center position causing a downshifting by one gear, the selector lever returning to the neutral center position after a shifting operation in the second shifting path; a first switch arranged to be actuable by the pivoting of the selector lever in the first direction to cause said upshifting; a second switch arranged to be actuable by the pivoting of the selector lever in the second direction to cause said downshifting; a first device that interacts with the first switch to actuate the first switch; a second device that interacts with the second switch to actuate the second switch; wherein the first and second devices each includes a pin and a spring that loads the pin against the selector lever in the direction of the neutral center position.
Claim 2
Dependent Claim
220 words
A shifting arrangement for an automatic transmission of a motor vehicle which is influenced by an electronic control unit, comprising: a selector lever pivotable in a first shifting path to select several operating positions and automatically shifting transmission gears, movable via a transverse path into a second shifting path parallel with respect to the first shifting path, a pivoting of the selector lever in a first direction from a neutral center position in the second shifting path causing an upshifting by one gear and a pivoting in a second direction from the neutral center position causing a downshifting by one gear, the selector lever returning to the neutral center position after a shifting operation in the second shifting path; a first switch arranged to be actuable by the pivoting of the selector lever in the first direction to cause said upshifting; a second switch arranged to be actuable by the pivoting of the selector lever in the second direction to cause said downshifting; a first device that interacts with the first switch to actuate the first switch; a second device that interacts with the second switch to actuate the second switch; wherein the first and second devices each includes a pin and a spring that loads the pin against the selector lever in the direction of the neutral center position.
Claim 3
Dependent Claim
40 words
The shifting arrangement according to claim 1, wherein the springs and the pins of the first and second devices are aligned in a longitudinal direction of the second shifting path, and said pins are directly operable by the selector lever.
Claim 4
Dependent Claim
20 words
The shifting arrangement according to claim 2, wherein the springs are coil springs arranged coaxially with respect to the pins.
Claim 5
Dependent Claim
24 words
The shifting arrangement according to claim 3, wherein each device includes a common housing which houses the spring and the pin of that device.
Claim 6
Dependent Claim
39 words
The shifting arrangement according to claim 1, wherein the pins actuate the first and second switches in a force optimum of the springs to produce a defined pressure point (Pd) of the selector lever in the second shifting path.
Claim 7
Dependent Claim
52 words
The shifting arrangement according to claim 5, wherein the pins are axially movable and include ramps at one end of the pins, and the first and second switches have actuating pins which are arranged transversely with respect to the longitudinal direction of the pins and are adjusted by ramps of the pins.
Claim 8
Dependent Claim
29 words
The shifting arrangement according to claim 6, wherein each ramp is a cone which widens from the direction of the one end of the pin that includes the ramp.
Claim 9
Dependent Claim
23 words
The shifting arrangement according to claim 7, wherein the free end of the cone is a head which interacts with the selector lever.
Claim 10
Dependent Claim
22 words
The shifting arrangement according to claim 1, further comprising a common bearing plate to which the devices and the switches are fastened.
Claim 11
Dependent Claim
28 words
The shifting arrangement according to claim 9, further comprising a shifting arrangement housing, and wherein the bearing plate is constructed as a cover of the shifting arrangement housing.
Claim 12
Dependent Claim
27 words
The shifting arrangement according to claim 9, further comprising an electric contact device for the operation of the individual gear shift mechanism coupled to the bearing plate.
Claim 13
Dependent Claim
30 words
The shifting arrangement according to claim 11, wherein the contact device is provided on a side of the second shifting path that is furthest away from the first shifting path.
Claim 14
Dependent Claim
35 words
The shifting arrangement according to claim 12, further comprising another contact device that provides an acoustical signal reporting a not-in-P position of the selector lever, said another contact device being coupled to the bearing plate.
Claim 15
Dependent Claim
30 words
The shifting arrangement according to claim 13, wherein the second contact device is arranged on the side of the first shifting path that is furthest from the second shifting path.
Claim 16
Dependent Claim
19 words
The shifting arrangement according to claim 13, wherein the switches and the contact devices are components which are identical.
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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) | 1994-12-09 | 1995-06-10 | 1995-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-09 | 1999-06-10 | 1999-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-09 | 2003-06-10 | 2003-12-10 | $7700.00 | Window Closed / Lapsed |