JP4394820B2 - Change lever position detector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a change lever position detection device in a transmission operating mechanism.
[0002]
[Prior art]
In the transmission operation mechanism, a means for generating a change lever position signal (shift instruction position signal) based on human operation, an actuator for driving a gear shift mechanism of the transmission, and a transmission to a gear position corresponding to the position signal of the change lever And a means for controlling the actuator to shift the gear (see Japanese Utility Model Laid-Open No. 5-90027).
[0003]
As a change lever position detection device used in such an operation mechanism, there is known a device configured as shown in FIGS. Reference numeral 1 denotes a slider that can move in the X direction, and reference numeral 2 denotes a slider that can move in the Y direction. The change levers are formed in the long holes 1a and 2a (formed longer in the direction perpendicular to the moving direction of the sliders 1 and 2). The lower end side of 5 is engaged. The change lever 5 has a fulcrum set above the engaging portion with the sliders 1 and 2 and operates the slider 1 in the X direction when operated in the X direction (the slider 2 moves the change lever 5 with the long hole 2a). On the other hand, when operated in the Y direction, the slider 2 is moved in the Y direction (the slider 1 does not operate because the long hole 1a allows the change lever 5 to move).
[0004]
One detection means 3, 4 (magnet) is arranged on each side surface along the moving direction of the sliders 1, 2. One detection means 10 to 13 (a sensor having a magnetic detection element) that is turned on when the magnets 3 and 4 enter the reaction range are arranged one by one on the fixed side facing both ends of each movement range of the magnets 3 and 4. FIG. 6 shows an operation area of the change lever 5 that can be detected by a combination of these outputs based on the sensors 12 and 13 arranged in the X direction and the sensors 10 and 11 arranged in the Y direction. The output states (output patterns of the terminals (1) to (4)) of the sensors 10 to 13 corresponding to the operation areas A to I are as shown in FIG. Note that 1 is an ON signal and 0 is an OFF signal.
[0005]
In the h-type in which the operation pattern of the change lever 5 is simple (see FIG. 1), the UP (shift up) position in the operation area A, the DN (shift down) position in the operation area G, and the H (hold) in the operation area D The position, the N (neutral) position in the operation area F, and the R (reverse) position in the operation area I are set. For example, when the output of the sensor 10 arranged in the X direction is 1, the output of the sensor 11 arranged similarly is 0, the output of the sensor 12 arranged in the Y direction is 1, and the output of the sensor 13 arranged similarly is 0 (see FIG. 7 (corresponding to the output pattern of the operation zone A) is detected by the controller (not shown) (means for controlling the actuator to shift the gear of the transmission) that the change lever is in the UP position by the combination of these outputs. is there.
[0006]
[Problems to be solved by the invention]
In such a conventional apparatus, since the slider 1 and the magnet 3 in the X direction and the slider 2 and the magnet 4 in the Y direction are incorporated, the lever operation becomes heavy (resistance increases) and smooth movement is achieved. It is difficult to ensure, and it is difficult to reduce the size. Therefore, the number of detected means (magnets) is reduced to one, and the detecting means (sensor) that is turned on when the detected means enters the reaction range is set to XY corresponding to the operating position to be detected by the change lever. It is conceivable to place them one by one at the coordinate positions.
[0007]
When this is employed in the h-type of FIG. 1, one sensor 20 to 24 is arranged at each of the UP position, DN position, H position, N position, and R position. In the controller, the operating position of the change lever 30 is detected as a position on the XY coordinates corresponding to the sensors 20 to 24 whose output is 1 (ON signal). In this system, compared with the conventional apparatus shown in FIGS. 4 and 5, the output terminal regardless of the same number of operation positions (UP position, DN position, H position, N position, R position) to be detected by the change lever 30. The number of (sensors) increases by one. In the conventional controller, based on the sensors 12 and 13 arranged in the X direction and the sensors 10 and 11 arranged in the Y direction, the position of the change lever 5 is detected by a combination of these outputs. Therefore, even if the number of output terminals (sensors) matches, it cannot be shared with the detection apparatus of FIG. In other words, if the position detection device for the change lever is changed from the conventional method shown in FIGS. 4 and 5 to the new method shown in FIG. 1, the controller must be changed to a new one. The cost will be large.
[0008]
The present invention has been made paying attention to such a problem, and intends to make it possible to use a conventional detection means (controller) in adopting a new method in a position detection device for a change lever. .
[0009]
[Means for Solving the Problems]
In the first aspect of the invention, the transmission operating mechanism is provided with detected means that is displaced according to the operation of the change lever, and the detecting means that is turned on when the detected means enters the reaction range is the operating position at which the change lever should be detected. Are arranged one by one at the positions on the XY coordinates corresponding to, while the position signals on the XY coordinates of these detecting means are converted into position signals on the X axis and position signals on the Y axis. Is provided.
[0010]
The second invention is characterized in that, in the first invention, the detected means is set to a magnet, and the detecting means is set to a sensor provided with a magnetic detection element.
[0011]
In a third aspect, the logic circuit according to the first aspect includes a wiring for connecting in parallel between each detection means and a terminal corresponding to a position on the X axis and a terminal corresponding to a position on the Y axis. And a diode for rectifying an electric signal between the wirings.
[0012]
【The invention's effect】
In the first to third aspects of the invention, the logic circuit converts the position signal on the XY coordinates of each detection means into a position signal on the X axis and a position signal on the Y axis. Accordingly, one detection means is arranged at each position on the XY coordinate corresponding to the operation position to be detected by the change lever. However, as a means for detecting the operation position of the change lever, a position signal on the X axis is provided. And a conventional method of detecting by a combination of the position signal on the Y axis can be used. Further, one detection means is provided by disposing one detection means at a position on the XY coordinate corresponding to the operation position to be detected by the change lever, when the detection means enters the reaction range. It is easy to ensure smooth and good operability of the change lever.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows the first embodiment, and a detection means (not shown) that is displaced in accordance with the operation of the change lever 30 is provided in an h-type in which the operation pattern of the change lever 30 is simple. Reference numerals 20 to 24 are detection means that are turned on when the detected means enters the reaction range, and are arranged one by one at positions on the XY coordinates corresponding to the operation positions to be detected by the change lever 30. Magnets are set as the detection means, and sensors (switches) including magnetic detection elements are set as the detection means 20 to 24.
[0014]
(1) to (4) are output terminals for the conventional detection means (controller that controls the actuator to shift the gear of the transmission), and position signals on the XY coordinates of the sensors 20 to 24 are displayed on the X axis. A logic circuit 39 is provided for converting the position signal into a position signal on the Y axis. In this case, the logic circuit 39 includes the output terminals (3) and (4) corresponding to the positions on the X axis and the output terminals (1) and (2) corresponding to the positions on the Y axis. The wirings 40a to 40i are connected in parallel to each other, and diodes 41a to 41e that rectify electric signals between the wirings.
[0015]
Specifically, the sensor 20 at the UP position (corresponding to the operation area A in FIGS. 6 and 7) is connected to the output terminal (3) corresponding to the position on the X axis via the wirings 40a, 40b, and 40e. The sensor 21 at the output terminal {circle around (1)} corresponding to the position on the Y axis via 40a and the DN position (corresponding to the operation area G in FIGS. 6 and 7) is connected to the X axis via wirings 40c, 40d and 40e. Output terminal {circle around (3)} corresponding to the upper position, output terminal {circle around (2)} corresponding to the position on the Y-axis via wiring 40c, and sensor 22 at the H position (corresponding to operation area D in FIGS. 6 and 7). The sensor 23 at the output terminal {circle around (3)} corresponding to the position on the X axis via the wiring 40e and the N position (corresponding to the operation area D in FIGS. 6 and 7) is connected on the X axis via the wiring 40h. Output terminal corresponding to the position of (4), R position (Fig. 6, Sensor 24 corresponding to the operation area I) is connected to the output terminal {circle around (4)} corresponding to the position on the X axis via the wirings 40g, 40f and 40h, and on the Y axis via the wirings 40g, 40i and 40c. Wired to the output terminal {circle around (2)} corresponding to the position.
[0016]
In order to match the output patterns of the terminals (1) to (4) with the conventional case (FIGS. 4 and 5), the ON signal of the sensor 22 is prevented from flowing from the wiring 40e to the wiring 40a via the wiring 40b. The ON signal of the diode 41c and sensor 22 is prevented from flowing from the wiring 40e to the wiring 40c via the wiring 40d, and the ON signal of the diode 41b and sensor 23 is prevented from flowing from the wiring 40h to the wiring 40g via the wiring 40f. Output terminal corresponding to the position on the Y-axis through the diode 41e, the wiring 40g and the wiring 41i from the wiring 41c through the wiring 40c to prevent the ON signal of the diode 41d and the sensor 21 from flowing from the wiring 40c through the wiring 40i to the wiring 40g. 2 is provided with a diode 41a that prevents the ON signal of the sensor 22 flowing to 2 ▼ from flowing back through the wiring 40c. Than is.
[0017]
By such a logic circuit 39, the outputs (position signals on the XY coordinates) of the sensors 21 to 24 are converted into position signals on the X axis and position signals on the Y axis, and output terminals (1) to (1) to (3). It is supplied to (4). Accordingly, each of these sensors 21 to 24 is arranged at a position on the XY coordinate corresponding to the operation position to be detected by the change lever 30, but the output patterns of the output terminals (1) to (4) are Same as the conventional method (in the case of FIGS. 4 and 5), and the conventional detection means (detecting the operating position of the change lever by the combination of the position signal on the X axis and the position signal on the Y axis) is used. It becomes possible. That is, even if the position detection device for the change lever is changed from the conventional method to the new method, there is an effect that the conventional controller does not need to be changed to a new one. In this position detection device, the sensors 20 to 24 that react to the magnet are placed one by one at positions on the XY coordinates corresponding to the operation position to be detected by the change lever 30. Since the number of displacements according to the movement is reduced to only one, the change lever can be operated smoothly and better than the conventional case (in the case of FIGS. 4 and 5) that incorporates two sets of sliders and magnets. It becomes easy to secure the sex. Further, the logic circuit 39 can be constructed at low cost from the wirings 40a to 40i and the diodes 41a to 41e.
[0018]
Even when the operation pattern of the change lever is H-shaped as shown in the figure, the position signals on the XY coordinates of the sensors 50 to 57 are converted into position signals on the X axis and position signals on the Y axis. By providing the logic circuit 49, the output patterns of the output terminals {circle around (1)} to {circle around (4)} can be set to be the same as in the conventional case (in the case of FIGS. 4 and 5). One sensor 50 to 57 is arranged in each of the operation areas A to D and F to I (excluding E) in FIGS. 6 and 7 to detect the range position of the change lever 30. Regarding the configuration of the logic circuit 49, not only a diode as shown in FIG. 2 but also an AND circuit or an OR circuit may be used.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.
FIG. 2 is also a circuit configuration diagram.
FIG. 3 is a schematic configuration diagram showing another embodiment.
FIG. 4 is a schematic configuration diagram illustrating a conventional method.
FIG. 5 is a partially exploded perspective view of the same.
FIG. 6 is a view of an operation area that can also be detected.
FIG. 7 is an output pattern table for each operation area.
[Explanation of symbols]
20 to 24, 50 to 57 Sensor 30 Change lever 39, 49 Logic circuit (1) to (4) Output terminal

Claims (3)

The transmission operating mechanism is provided with detected means that is displaced in accordance with the operation of the change lever, and the detecting means that is turned on when the detected means enters the reaction range corresponds to the operation position that the change lever should detect. A logic circuit is provided for converting the position signals on the XY coordinates of these detection means into position signals on the X axis and position signals on the Y axis, one by one at each coordinate position. Change lever position detection device. 2. The change lever position detecting device according to claim 1, wherein the detected means is a magnet and the detecting means is a sensor including a magnetic detecting element. The logic circuit includes a wiring for connecting in parallel between each detection means and a terminal corresponding to a position on the X axis and a terminal corresponding to a position on the Y axis, a diode for rectifying an electrical signal between the wirings, The position detection device for a change lever according to claim 1, wherein the position detection device comprises:

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