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1. US20030173181 - Control unit gear or shift program selection of an automatic vehicle gearbox

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

Claims

1. A motor vehicle automatic transmission gear or shift program selection control unit comprising:
a driver actuated operating device for an emergency release mechanism, by which a parking brake of the motor vehicle transmission can be released;
a housing with a mount;
a selector lever which can be brought into at least two end positions, the selector lever being connected to the housing, said operating device of the emergency release mechanism being an integral part of the control unit, said operating device including a detachable stop element with a coded release mechanism, said stop element being secured in said mount of the control unit by means of said coded release mechanism, said detachable stop element acting as a movement limitation for the release movement of the parking brake by said operating device in the non-actuated state of the emergency release mechanism, said stop element and said coded release element being removable from said mount and said housing.
2. A control unit in accordance with claim 1, wherein the operating device includes a control element at said selector lever, said control element being coupled with said parking brake arranged at the motor vehicle transmission, by a connection member.
3. A control unit in accordance with claim 2, wherein said control element includes a carrier engaging a hook-like opening at said selector lever, upon said selector lever being brought into a release position for the parking brake.
4. A control unit in accordance with claim 2, wherein said control element has a Hall sensor system to generate an electric indication signal for the position of the parking brake.
5. A control unit in accordance with claim 1, wherein the release movement of the parking brake takes place due to a displacement of the selector lever beyond a selection end position.
6. A control unit in accordance with claim 1, further comprising a locking device for fixing the operating device for the parking brake in its release position, said locking device being arranged in said housing.
7. A control unit in accordance with claim 6, wherein said locking device has a ratchet lever mounted rotatably in said housing with a recess and a detent fixed to said selector lever, wherein said recess and said detent are engaged with one another in the release position of the selector lever for the parking brake.
8. A control unit in accordance with claim 1, wherein said coded release mechanism associated with said stop element is secured by means of a key code.
9. A control unit in accordance with claim 1, wherein said coded release mechanism associated with said stop element is secured by an electronic coding device.
10. A motor vehicle automatic transmission gear or shift program selection control unit comprising:
a housing with a mount;
a driver actuated operating device for an emergency release mechanism, by which a parking brake of the motor vehicle transmission can be released, said operating device being connected to said housing, said operation device including a detachable stop element secured in said mount via a coded release mechanism; and
a selector lever connected to said housing, said selector lever being movable into at least two end positions, said detachable stop element acting as a movement limitation to said selector lever defining one of said two end positions, said stop element acting as a movement limitation to said operating device to stop release movement of the parking brake by said operating device in a non-actuated state of the emergency release mechanism.
11. A control unit in accordance with claim 1, further comprising:
a locking device arranged in said housing and including a ratchet lever rotatably arranged in said housing, said ratchet lever defining a recess;
a detent arranged on said selector lever,
a spring biasing said ratchet lever against said stop element.
12. A control unit in accordance with claim 1, wherein:
said stop element includes a rubber buffer.
13. A control unit in accordance with claim 12, wherein:
said selector lever is in contact with said rubber buffer in one of said end positions.
14. A control unit in accordance with claim 11, wherein:
said stop element includes a rubber buffer;
said selector lever is in contact with said rubber buffer in one of said end positions.
15. A brake release arrangement for a motor vehicle, the arrangement comprising:
a housing;
a selector lever pivotally mounted in said housing along a pivot path between first and second ends;
a detachable stop element selectively arrangable in a first position and a second position, said first position being in said housing and in said pivot path, said second position being spaced and detached from said housing and said pivot path, said detachable stop element in said first position blocking movement of said selector lever into said first end of said pivot path and limiting movement of said selector lever to a sub-path of said pivot path;
a coded release element selectively fixing said detachable stop element in, and releasing said detachable stop element from, said first position in said housing;
a brake disengaging element in said housing and disengaging a brake of the vehicle when said selector lever is arranged at said first end.
16. An arrangement in accordance with claim 15, wherein:
a shift element is connected to said selector lever and shifts a transmission of the vehicle when said selector lever is moved in said sub-path.
17. An arrangement in accordance with claim 16, wherein:
said selector lever is movable into a plurality of positions in said sub-path for shifting the transmission into a plurality of gears.
18. An arrangement in accordance with claim 16, wherein:
said brake disengaging element disengages the transmission from a park position.
19. An arrangement in accordance with claim 15, wherein:
said coded release element is formed to repetitively connect and disconnect said stop element from said housing and said pivot path without significantly damaging said coded release element.
20. An arrangement in accordance with claim 15, wherein:
said second position of said stop element is completely separatable from said housing, said selector lever and said pivot path.