Patent Grant
6904822
The present invention pertains to a signal transmitter for setting the operating states of an automatic shifting device of a gear change mechanism with a selection means automatically returning into a normal position at least for certain shift positions.
Gear change mechanisms with an automatic shifting device are widely used especially in the manufacture of motor vehicles. Such shifting devices usually have an operating state R for engaging the at least one reverse gear, an operating state N for interrupting the torque transmission in the gear change mechanism, and an operating state D for engaging a forward gear. An operating state P for engaging the parking brake is additionally frequently provided.
If, e.g., the operating state D for engaging a forward gear is activated, the automatic shifting device of the gear change mechanism automatically selects the forward gear that appears most suitable from the available forward gears as a function of certain parameters of the vehicle, e.g., the instantaneous velocity or the acceleration, corresponding to one or more preset shifting programs, and controls the gear change mechanism correspondingly. The driver of the vehicle can frequently select separate shifting programs for summer and winter and/or sports driving and economic driving.
Such shifting devices are controlled by means of signal transmitters. While the control by the signal transmitter used to be performed mechanically by means of cables, electronic transmission of the signals is now preferred, because this permits the flexible arrangement of the signal transmitter. For the selection of the particular operating state R N D P of the automatic shifting device, such a signal transmitter has a gearshift lever usually provided at a center console of the vehicle. The functions of the gearshift lever corresponding to the individual operating states are arranged, as a rule, linearly in the longitudinal direction of the vehicle and can be selected by a movement of the gearshift lever in the longitudinal direction of the vehicle. In conventional signal transmitters, a function is considered to be selected only as long as the gearshift lever is located in the position designating the particular function.
A corresponding signal transmitter is described in DE 197 37 296 C2. This prior-art signal transmitter has, moreover, the possibility of leaving the automatic shifting program preset for engaging the forward gears and to shift the gears upward and/or downward manually by tapping the gearshift lever. The particular shifting operation is triggered by sending a pulse, so that the gearshift lever does not need to remain in the particular position but can automatically return into its starting position.
It is necessary for this that the automatic shifting device of the gear change mechanism be designed in the form of an electronic control device, and that the gearshift lever of the signal transmitter sends a particular control signal to the electronic control device via associated electric contacts.
Moreover, efforts have been made in recent years to replace the gearshift lever of the signal transmitter arranged at the center console with a selector lever fastened to the steering column, e.g., in order to achieve a greater freedom in designing the interior space of the vehicle.
A signal transmitter with such a selector lever is described in DE 199 16 924 A1. The operating states of the automatic shifting device of the automatically shifted transmission can be selected by deflecting the selector lever, and the selector lever can be moved along a shift gate for selecting individual functions R N D P in at least two deflection directions, and it always returns automatically into the same starting position from both deflection directions. The same operating state of the automatic shifting device of the automatically shifted transmission is assigned to each deflection direction of the selector lever in the shift gate for preselecting individual functions R N D P during the automatic operation, and two different functions can be selected in at least one deflection direction of the selector lever by the selector lever being moved over a first section up to a first stop in the deflection direction for selecting a first function, and by the selector lever being moved over a second, greater section up to a second stop in the same deflection direction for selecting a second function, while the first stop is pressed down. The individual functions are thus arranged along a straight path of movement.
The automatic shifting device of the automatically shifted transmission is controlled via impulses in this case as well, which are sent by the signal transmitter corresponding to the movement of the selector lever, so that the selector lever can return into its starting position after the selection of a function.
The drawback of the prior-art signal transmitters for setting the operating states of an automatic shifting device of a gear change mechanism with a selection means automatically returning into a normal position is that an unintended operating state may be inadvertently selected by an unintended movement over a first position (or the starting position) of the selection means.
The object of the present invention is to provide a signal transmitter for setting the operating states of an automatic shifting device of a gear change mechanism, which effectively avoids the unintended selection of an operating state and enables the driver to perform intuitive shifting.
According to a first preferred exemplary embodiment of the present invention, a signal transmitter for setting the operating states of an automatic shifting device of a gear change mechanism has a selection means, which can be deflected in at least three directions, returns automatically into a normal position at least for certain shift positions, and by means of which at least one shift position for engaging a reverse gear, a shift position for interrupting the torque transmission in the gear change mechanism, and a shift position for engaging a forward gear can be selected, wherein the selection means can be deflected starting from the normal position in a first direction for selecting the shift position for the interruption of the torque transmission in the gear change mechanism, and the selection means can be deflected in a direction different from the first direction, which is not the direction opposite the first direction, starting from the shift position for the interruption of the torque transmission in the gear change mechanism for selecting one of the other shift positions.
To select the drive-transmitting operating states of the automatic shifting device of the gear change mechanism, it is consequently necessary to bring the selection means from a stable normal position first into an unstable shift position for the interruption of the torque transmission in the gear change mechanism by deflection in a first deflection direction, and then into another unstable shift position (e.g., for engaging a forward gear) by deflection in another direction different from the first deflection direction. The additional deflection direction must not be the direction opposite the first deflection direction, because the normal position would. otherwise again be reached.
Thus, the deflection direction of the selection means must always be changed during the shifting of the signal transmitter according to the present invention between individual shift positions, so that an unintended “shifting through” the individual shift positions is effectively avoided and intuitive shifting becomes possible.
Since the drive-transmitting operating states are, moreover, always shifted via the shift position for the interruption of the torque transmission in the gear change mechanism (idle), the risk of damage to the gear change mechanism due to an operating error in operating the selection means is further reduced regardless of an electronic safety circuit that may be additionally present.
After its deflection, the selection means automatically returns into the normal position, so that the operation of the selection means is uncoupled from the activated operating state of the automatic shifting device of the gear change mechanism.
In a first preferred embodiment, the selection means can be deflected for selecting the shift position for engaging a reverse gear starting from the shift position for the interruption of the torque transmission in the gear change mechanism in a second direction, which is not the opposite direction to the first direction and is different from the first direction, and the selection means can be deflected for selecting the shift position for engaging a forward gear starting from the shift position for the interruption of the torque transmission in the gear change mechanism in a third direction, which is a direction different from the first and second directions and is not the opposite direction to the first direction.
This shifting scheme permits, among other things, the linear arrangement of the shift positions for engaging a reverse gear, for the interruption of the torque transmission in the gear change mechanism and for engaging a forward gear and consequently a compact design of the selection means of the signal transmitter.
The signal transmitter is preferably designed such that additional devices can be controlled by means of the selection means in addition to the setting of the operating states of the automatic shifting device of the gear change mechanism.
As a result, it is possible according to the present invention to design the selection means of the signal transmitter as a multifunctional shifting element and to additionally perform, e.g., the setting of a chassis regulator, an air conditioner, a navigation system or radio. As a result, the number of selection means needed for operating the particular devices can be reduced.
It is especially advantageous according to the present invention if a shift position for a first additional function and a shift position for a second additional function can be selected by means of the selection means, wherein the selection means can be deflected for selecting the shift position for a first additional function starting from the normal position in a direction that is the same as the second direction, and the selection means can be deflected for selecting the shift position for a second additional function starting from the normal position in a direction that is the same as the third direction.
This permits the direct control of the additional devices of a vehicle, and an unintended selection of the operating states of the automatic shifting device of the gear change mechanism is additionally prevented.
According to a second preferred embodiment, a first shift position and a second shift position are provided for the interruption of the torque transmission in the gear change mechanism, wherein the selection means can be deflected starting from the normal position in a first and second directions for selecting the first or second shift position for the interruption of the torque transmission in the gear change mechanism, wherein the first direction is different from the second direction, and the selection means can be deflected starting from the first shift position for the interruption of the torque transmission in the gear change mechanism in a third direction for selecting the shift position for engaging a reverse gear, which said third direction is different from the first and second directions and is not the opposite direction to the first and second directions, and the selection means can be deflected starting from the second shift position for the interruption of the torque transmission in the gear change mechanism in a direction that is the same as the third direction for selecting the shift position for engaging a forward gear.
Due to the provision of two shift positions for the interruption of the torque transmission in the gear change mechanism, it is possible to considerably increase the number of shift patterns that can be embodied with the signal transmitter according to the present invention. Furthermore, the risk of operating errors can be further reduced, because a user must decide already before the selection of a shift position for the interruption of the torque transmission in the gear change mechanism whether he would like to reach a shift position for engaging a forward or reverse gear.
It is especially advantageous if a shift position for engaging a parking brake can be additionally selected by means of the selection means, because all typical operating states of an automatic shifting device of a gear change mechanism can thus be selected by means of the selection means.
The selection means is preferably deflectable for selecting the shift position for engaging a parking brake starting from the shift position for engaging a reverse gear in a direction that is the same as the first direction.
As a result, it is guaranteed, on the one hand, that a further change of the deflection direction of the selection means is necessary for engaging a parking brake starting from the shift position for engaging the reverse gear, as a result of which an unintended engagement of the parking brake can be prevented. On the other hand, it is thus possible to maintain the order of the shift positions, which is commonly used in conventional selection means for the operating state of an automatic transmission, in which order the shift position for engaging a parking brake and the shift position for engaging a reverse gear are adjacent to each
As an alternative, the selection means may be deflectable starting from the normal position in a direction that is the same as the third direction for selecting the shift position for engaging a parking brake.
This permits the direct engagement of the parking brake starting from the normal position.
According to a second preferred exemplary embodiment, the selection means is deflectable in four directions.
This makes it possible to further increase the number of shift patterns of the selection means that can be embodied with the signal transmitter according to the present invention.
In this second exemplary embodiment, the selection means is deflectable preferably starting from the normal position in a fourth direction, which is different from the first, second and third directions described above, for selecting the shift position for engaging a parking brake.
Thus, it is again possible to reach the shift positions for engaging a parking brake directly starting from the normal position.
According to a preferred embodiment of the second exemplary embodiment, a first shift position and a second shift position are provided for interrupting the torque transmission in the gear change mechanism, wherein the selection means can be deflected for selecting the first or second shift position for the interruption of the torque transmission in the gear change mechanism starting from the normal position in a first or second direction, wherein the first direction is different from the second direction, and the selection means can be deflected for engaging a reverse gear starting from the first shift position for the interruption of the torque transmission in the gear change mechanism in a third direction, which is different from the first and second directions and not the opposite direction to the first and second directions, and the selection means can be deflected for selecting the shift position for engaging a forward gear starting from the second shift position for the interruption of the torque transmission in the gear change mechanism in a fourth direction, which is different from the first, second and third directions, and is not the opposite direction to the first and second directions.
It is thus possible to embody shifting arrangements in which the shift position for engaging a reverse gear and the shift position for engaging a forward gear are arranged point-symmetrically in relation to the normal position of the selection means, and are thus located opposite each other, as a result of which the intuitive operation of the selection means of the signal transmitter according to the present invention is additionally facilitated.
A shift position for engaging a parking brake is preferably also selectable according to the second exemplary embodiment, in which case the selection means can be deflected for selecting the shift position for engaging a parking brake starting from the shift position for engaging a reverse gear in a direction that is the same as the aforementioned first or second direction.
Furthermore, it is also especially advantageous according to the second exemplary embodiment if a shift position for a first additional function and a shift position for a second additional function can be additionally selected by means of the selection means, and the selection means can be deflected for selecting the shift position for a first additional function starting from the normal position in a direction that is the same as the third direction, and the selection means can be deflected for selecting the shift position for a second additional function starting from the normal position in a direction that is the same as the fourth direction, so that additional devices can be controlled by means of the selection means of the signal transmitter according to the present invention.
In an alternative embodiment, the signal transmitter according to the present invention additionally has a park button, and a parking brake can be engaged by pressing the park button.
Due to the provision of a park button, it is not necessary to form a separate shift position for engaging the parking brake for the selection means, as a result of which the shift pattern of the selection means can be simplified. Furthermore, the accidental engagement of the parking brake can be prevented by the provision of a separate park button. The park button is preferably arranged at the selection means.
To additionally prevent the accidental engagement of the shift position for engaging a reverse gear during the deflection of the selection means, it is advantageous for the signal transmitter to additionally have a reverse lock button for the selection means to be able to be deflected for selecting the shift position for engaging a reverse gear only when the reverse lock button is pressed. The reverse lock button is preferably arranged at the selection means.
The signal transmitter according to the present invention is preferably mounted in a vehicle.
It is advantageous for the shift position for engaging a reverse gear to be arranged in the direction of forward travel of the vehicle in relation to the normal position and for the shift position for engaging a forward gear to be arranged in the direction of reverse travel of the vehicle in relation to the normal position, because this corresponds to the conventional arrangement of the corresponding shift position in the case of a conventional gearshift lever of an automatic transmission.
It is, of course, also possible according to the present invention to transpose this arrangement, so that the shift position for engaging a reverse gear is arranged in the direction of reverse travel of the vehicle in relation to the normal position, and the shift position for engaging a forward gear is arranged in the direction of forward travel of the vehicle in relation to the normal position, which is better suited to the actual mode of operation of the particular shift position.
The selection means is preferably designed in the form of a steering column arm fastened to a steering column of a vehicle, because this permits the operation of the selection means without a driver having to remove his hands from the steering wheel.
As an alternative, it is also possible to design the selection means in the form of a gearshift lever arranged at the center console of the vehicle.
According to a preferred exemplary embodiment of the present invention, a signal transmitter for engaging the operating states of an automatic shifting device of a gear change mechanism has a selection means, which can be deflected in at least three directions, automatically returns into a normal position at least for certain shift positions, and by means of which at least one shift position for engaging a reverse gear, a shift position for interrupting the torque transmission in the gear change mechanism and a shift position for engaging a forward gear can be selected, wherein the selection means can be deflected in a first direction starting from the normal position for selecting the shift position for interrupting the torque transmission in the gear change mechanism, and the selection means can be deflected at first in another direction which is different from the first direction and is not the opposite direction to the first direction starting from the normal position for the interruption of the torque transmission in the gear change mechanism for selecting one of the other shift positions, and it can again be deflected in the first direction after the deflection in the respective other direction.
To select the drive-transmitting operating states of the automatic shifting device of the gear change mechanism, it is thus necessary to bring the selection means from a stable normal position first into an unstable shift position for the interruption of the torque transmission in the gear change mechanism by deflection in a first deflection direction and to subsequently bring it into another unstable shift position (e.g., for engaging a forward gear) first by deflection in another direction different from the first deflection direction and subsequently by deflection in the first direction. The additional deflection direction must not be the opposite direction to the first deflection direction, because the normal position would otherwise again be reached.
Thus, the deflection direction of the selection means must first always be changed during the deflection of the selection means between individual shift positions, so that the shifting of the signal transmitter according to the present invention is brought about by an essentially stepwise deflecting movement of the selection means between two consecutive shift positions. Furthermore, the basic deflection direction of the selection means for selecting shift positions arranged adjacent to each other is preferably the same. Consequently, it is possible with the signal transmitter according to the present invention to always deflect the selection means up to a stop of a shift position, so that an unintended “shifting through” the individual shift positions is effectively prevented and intuitive shifting becomes possible. Since, moreover, the drive-transmitting operating states are always shifted via the shift position for the interruption of the torque transmission in the gear change mechanism (idle), the risk for damage to the gear change mechanism due to operating error in operating the selection means is further reduced regardless of an electronic safety circuit that may be additionally present.
After the deflection of the selection means, the latter automatically returns into its normal position, so that the operation of the selection means is uncoupled from the activated operating state of the automatic shifting device of the gear change mechanism.
In a first preferred embodiment, the selection means can be deflected for selecting the shift position for engaging a reverse gear starting from the shift position for the interruption of the torque transmission in the gear change mechanism first in a second direction that is not the opposite direction to the first direction and is different from the first direction, and after the deflection in the second direction, it can again be deflected in the first direction, and, furthermore, the selection means can be deflected for selecting the shift position for engaging a forward gear starting from the shift position for the interruption of the torque transmission in the gear change mechanism first in a third direction, which is a direction different from the first and second directions and is not the opposite direction to the first direction, and it can again be deflected in the first direction after the deflection in the third direction.
This shifting scheme permits, among other things, the compact design of the selection means of the signal transmitter.
The signal transmitter is preferably designed such that additional devices can be controlled by means of the selection means in addition to the setting of the operating states of the automatic shifting device of the gear change mechanism.
As a result, it is possible according to the present invention to design the selection means of the signal transmitter as a multifunctional shifting element and to additionally perform, e.g., settings of a chassis regulation, an air conditioner, a navigation system or a radio. As a result, the number of selection means needed for operating the particular devices can be reduced.
It is especially advantageous according to the present invention if a shift position for a first additional function and a shift position for a second additional function can be additionally selected by means of the selection means, wherein the selection means can be deflected for selecting the shift position for a first additional function starting from the normal position in a direction that is the same as the second direction, and the selection means can be deflected for selecting the shift position for a second additional function starting from the normal position in a direction that is the same as the third position.
This permits the direct control of the additional devices of a vehicle, and the unintended selection of the operating states of the automatic shifting device of the gear change mechanism is additionally prevented.
According to a second preferred embodiment, a first shift position-and a second shift position are provided for the interruption of the torque transmission in the gear change mechanism, wherein the selection means can be deflected for selecting the first or second shift position for the interruption of the torque transmission in the gear change mechanism starting from the normal position in a first and second directions, wherein the first direction is not the same as the second direction, and the selection means can be deflected for selecting the shift position for engaging a reverse gear starting from the first shift position for the interruption of the torque transmission in the gear change mechanism first in a third direction, which is different from the first and second directions and is not the opposite direction to the first and second directions, and it can again be deflected in the first or second direction after deflection in the third direction, and the selection means can be deflected for selecting the shift position for engaging a forward gear starting from the second shift position for the interruption of the torque transmission in the gear change mechanism first in a direction that is the same as the third direction, and after the deflection in the third direction, it can again be deflected in the first or second direction.
Due to the provision of two shift positions for the interruption of the torque transmission in the gear change mechanism, it is possible to considerably increase the number of shift patterns that can be embodied with the signal transmitter according to the present invention. Furthermore, the risk for operating errors can be further reduced, because a user must decide already before the selection of a shift position for the interruption of the torque transmission in the gear change mechanism whether he would like to reach a shift position for engaging a forward or reverse gear.
It is especially advantageous if a shift position for engaging a parking brake can be additionally selected by means of the selection means, because all typical operating states of an automatic shifting device of a gear change mechanism can thus be selected by means of the selection means.
The selection means can be preferably deflected first into the respective other direction starting from the shift position for engaging a reverse gear for selecting the shift position for engaging a parking brake, and it can be deflected after the deflection in the respective other direction in a direction that is the same as the first direction or is the opposite direction to the first direction. As a result, it is guaranteed, on the one hand, that a change in the deflection direction of the selection means is first necessary for engaging a parking brake starting from the shift position for engaging the reverse gear while maintaining the basic deflection direction of the selection means, as a result of which the unintended engagement of the parking brake can be avoided. On the other hand, it is thus possible to maintain the order of the shift positions, which is commonly used in conventional selection means for the operating state of an automatic transmission, in which order the shift position for engaging a parking brake and the shift position for engaging a reverse gear are adjacent to each other.
According to a second preferred exemplary embodiment, the selection means can be deflected in four directions.
This makes it possible to further increase the number of the shift patterns of the selection means that can be embodied with the signal transmitter according to the present invention.
According to a preferred embodiment of the second exemplary embodiment, a first shift position and a second shift position are provided for the interruption of the torque transmission in the gear change mechanism, wherein the selection means can be deflected for selecting the first or second shift position for the interruption of the torque transmission in the gear change mechanism starting from the normal position in a first or second direction, wherein the first direction is not the same as the second direction, and the selection means can be deflected for selecting the shift position for engaging a reverse gear starting from the first shift position for the interruption of the torque transmission in the gear change mechanism first in a third direction, which is different from the first and second directions and is not the opposite direction to the first and second directions, and after the deflection in the third direction, it can again be deflected in the first or second direction, and the selection means can be deflected for selecting the shift position for engaging a forward gear starting from the second shift position for the interruption of the torque transmission in the gear change mechanism first in a fourth position, which is different from the first, second and third directions and is not the opposite direction to the first and second directions, and after the deflection in the fourth direction, it can again be deflected in the first or second direction.
It is thus possible to embody shifting arrangements in which the shift position for engaging a reverse gear and the shift position for engaging a forward gear are arranged point-symmetrically in relation to the normal position of the selection means, and are thus located opposite each other, as a result of which the intuitive operation of the selection means of the signal transmitter according to the present invention is additionally facilitated.
A shift position for engaging a parking brake can preferably also be selected according to the second exemplary embodiment, and the selection means can be deflected for selecting the shift position for engaging a parking brake starting from the shift position for engaging a reverse gear first in the third or fourth direction, and after the deflection in the third or fourth direction, it can be deflected in a direction that is the same as the first or second direction.
Furthermore, it is also especially advantageous according to the second exemplary embodiment if a shift position for a first additional function and a shift position for a second additional function can be selected by means of the selection means, and the selection means can be deflected for selecting the shift position for a first additional function starting from the normal position in a direction that is the same as the third direction, and the selection means can be deflected for selecting the shift position for a second additional function starting from the normal position in a direction that is the same as the fourth position, so that additional devices can be controlled by means of the selection means of the signal transmitter according to the present invention.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and specific objects attained by its uses, reference is made to the accompanying drawings and descriptive matter in which preferred embodiments of the invention are illustrated.
Referring to the drawings in particular,
The fields with a white background show unstable positions of the selection means, i.e., positions in which the selection direction is maintained and the selector remains in the position only as long as it is held there. The fields with a white background are designated by the letters R, N, N1, N2, D, P, S1, S2. R denotes here a shift position for engaging a reverse gear; N, N1, N2 denote shift positions for the interruption of the torque transmission in the gear change mechanism; D denotes a shift position for engaging a forward gear; P denotes a shift position for engaging a parking brake; and S1, S2 denote shift positions for first and second additional functions. The fields with a black background, which are designated by X, symbolize the particular stable normal position of the selection means, i.e., the particular position in a shift pattern at which the selection means remains when it is not deflected or into which the selection means returns after it had been deflected into an unstable position.
The arrows in
To select the shift position D for engaging a forward gear, the selection means can be deflected starting from the shift position N in a third direction, which is a direction different from the first and second directions and is not the opposite direction to the first direction. The third direction in the shift pattern shown in
An especially preferred embodiment of the shift pattern shown in
The shift positions S1 and S2 may be used, e.g., for the manual shifting of the gear change mechanism, but also to operate a navigation system, a chassis regulation, an air conditioner or the control of another device.
An embodiment that is an alternative to
The shift pattern shown in
The shift pattern described in connection with
The shift pattern shown in
The shift patterns shown in
Furthermore,
The selection means of the signal transmitter according to the present invention may be designed, e.g., in the form of a gearshift lever and arranged at a center console of a vehicle (not shown).
However, as is shown in
The arrows in
To select the shift position D for engaging a forward gear, the selection means can be deflected first starting from the shift position N in a third direction, which is a direction different from the first and second directions and is not the opposite direction to the first direction, and it can again be deflected in the first direction after the deflection in the third direction. Thus, the deflection movement will again have, on the whole, a stepwise course for the selection means for selecting the shift position D for engaging a forward gear starting from the shift position N. In the shift pattern shown in
The deflection of the selection means between the individual shift positions N and R or N and D takes place preferably without a pause due to a single continuous stepwise deflection movement of the selection means.
An especially preferred embodiment of the shift pattern shown in
The shift positions S1 and S2 may be used, e.g., for the manual shifting of the gear change mechanism, but also to operate a navigation system, a chassis regulation, an air conditioner or to control another device.
An embodiment that is an alternative to
To select the shift position D, the selection means can be deflected starting from the shift position N2 first in a direction that is likewise the same as the third direction, and it can be deflected in the first or second direction after the deflection in the third direction. Thus, a stepwise course of the deflection movement is again obtained, on the whole, for the selection means for selecting the shift position D for engaging a forward gear starting from the shift position N2.
The shift pattern shown in
The shift pattern described in connection with
The shift pattern shown in
The shift patterns shown in
The shift pattern for setting the operating states of the automatic shifting device of the gear change mechanism corresponds here to the shift pattern shown in
The selection means of the signal transmitter according to the present invention may be designed, e.g., in the form of a gearshift lever and arranged at a center console of a vehicle.
However, the selection means is preferably designed as a steering column arm and is connected to a steering column of a vehicle in an articulated manner, so that the selection means can be moved in one or more planes of the steering wheel and in planes extending at right angles to those planes. The steering column arm has a control knob, which is arranged at one end of a steering column arm bar, wherein the steering column arm bar is pivotably fastened with its other end to the steering column of the motor vehicle. The steering column arm is used as a selection means of the signal transmitter according to the present invention and has electric contacts for this purpose at its steering column arm bar end connected to the steering column. By closing the contacts during the deflection of the steering column arm, shift commands are forwarded to an evaluating circuit, which controls the automatic shifting device of the gear change mechanism as well as optionally additional devices. The steering column arm is articulated to the steering column such that it can be deflected corresponding to the shift patterns shown in
The signal transmitter according to the present invention may, furthermore, be connected to a display means, which displays the particular activated operating state of the automatic shifting device of the gear change mechanism.
While specific embodiments of the invention have been shown and described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be embodied otherwise without departing from such principles.
| Number | Date | Country | Kind |
|---|---|---|---|
| 101 49 264 | Oct 2001 | DE | national |
| 101 56 091 | Nov 2001 | DE | national |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/DE02/03678 | 9/27/2002 | WO | 00 | 6/5/2003 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO03/03184 | 4/17/2003 | WO | A |
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