IP Library Granted Patent US 7,694,604
Granted Patent B2
US 7,694,604 · App. 11/407,064 · Granted Apr 13, 2010

Shifting mechanism for an automated or automatic transmission

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Quick Facts
Patent No.
US 7,694,604
App. No.
11/407,064
Granted
Apr 13, 2010
Kind
B2
Abstract

A shifting mechanism for an automated or automatic transmission includes a selection lever that can be shifted in a first shift gate between automatic selection stages. The selection lever can be shifted, via a first lateral gate, to a second shift gate in order to allow the manual selection of individual transmission gears, and via a second lateral gate, with which various modes, for example an automatic or a manual mode, can be activated using the selection lever. In addition to three stable positions for the selection stages, the selection lever has a fourth stable position, from which all driving modes can be set.

Claims (16)

1. A shifting mechanism for an automated or automatic transmission, comprising:

a selection lever,

a first shift gate in which the selection lever can be shifted between automatic selection stages,

a second shift gate in which the selection lever can be shifted in order to select individual transmission gears manually,

a first lateral gate via which the selection lever is movable to the second shift gate, and

a second lateral gate with which either an automatic mode or a manual mode can be activated using the selection lever,

wherein the selection lever has, in addition to three stable positions for the automatic selection stages, a fourth stable position from which all driving conditions can be set, wherein only unstable positions are disposed around the fourth stable position,

wherein a manual position ‘M’ corresponding to the manual mode and an automatic drive position ‘D’ corresponding to the automatic mode are disposed adjacent and on opposing sides of the fourth stable position, and both the manual position ‘M’ and the automatic drive position ‘D’ are unstable positions such that following a selection of either the manual position ‘M’ or the automatic drive position ‘D’, the selection lever automatically returns to the fourth stable position.

2. A shifting mechanism according to claim 1 , wherein the fourth stable position is located at the center of the second shift gate, from which the selection lever can be shifted via the first lateral gate to positions for the automatic selection stages or via the second lateral gate to the manual mode.

3. A shifting mechanism according to claim 2 , wherein single or multiple shifts are possible in the second shift gate.

4. A shifting mechanism according to claim 3 , wherein, as a visual indication of the driving gear that has been engaged, light-emitting diodes are used for the four stable positions, and a digital display is used for the manual mode and the one of the selection stages.

5. A shifting mechanism according to claim 2 , wherein, as a visual indication of the driving gear that has been engaged, light-emitting diodes are used for the four stable positions, and a digital display is used for the manual mode and the automatic selection stages.

6. A shifting mechanism according to claim 1 , wherein single or multiple shifts are possible in the second shift gate.

7. A shifting mechanism according to claim 6 , wherein, as a visual indication of the driving gear that has been engaged, light-emitting diodes are used for the four stable positions, and a digital display is used for the manual mode and the automatic selection stages.

8. A shifting mechanism according to claim 1 , wherein, as a visual indication of the driving gear that has been engaged, light-emitting diodes are used for the four stable positions, and a digital display is used for the manual mode and the automatic selection stages.

9. A shifting mechanism according to claim 1 wherein only four unstable positions are disposed around the fourth stable position.

Assignments (4)
MERGER Recorded Jun 16, 2010
From: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT
To: PORSCHE ZWISCHENHOLDING GMBH
Reel/Frame 024546/0631 →
CHANGE OF NAME Recorded Jun 16, 2010
From: PORSCHE ZWISCHENHOLDING GMBH
To: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT
Reel/Frame 024546/0651 →
MERGER Recorded Jun 30, 2008
From: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT
To: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT (COMPANY NUMBER 722287)
Reel/Frame 021184/0926 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 20, 2006
From: SICKART, MICHAEL; FUNK, MICHAEL; BAUR, PETER
To: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT
Reel/Frame 017800/0621 →