JP2016097867A - Shifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect a plurality of shift positions without using high accuracy sensors.SOLUTION: There is provided a shifting device including: a shift lever 12a that includes a plurality of shift positions and is moved along a plurality of selection rows of a selection row A 18a and a selection row B 18b connected with each other; a magnetic flux direction detection element 22 to detect a direction of magnetic flux; and a ball bearing part 20 that generates a magnetic flux in a plurality of directions corresponding to the selection row A 18a and the selection row B 18b, allocates the magnetic flux direction detection element 22 so as to detect generated magnetic fluxes of directions different for each selection row along which the shift lever 12 is moved, and is allocated in a manner that a direction of a magnetic flux detected by the magnetic flux direction detection element 22 differs for each shift position.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a shift device that selects a shift position.

  In the shift device described in Patent Document 1, a magnetic body provided at the lower end of the shift lever, a magnet provided below the magnetic body and forming a magnetic field with the magnetic body, and a magnetic flux between the magnetic body and the magnet It has been proposed to provide an MRE element that detects a change in direction. In Patent Document 1, since the magnetic field directed from the magnet to the magnetic body is changed by operating the shift lever, the shift position is detected by the MRE element detecting the change of the magnetic field (magnetic flux density).

  Further, in the shift device described in Patent Document 2, a holding device provided with a joint ball, a select lever supported so as to be pivotable via a joint that supports the joint ball of the holding device, one signal transmitter, and 2 And an angle measuring device having two sensors. Moreover, in patent document 2, an angle measuring device is arrange | positioned in a joint and is electrically connected to the control apparatus connected to the automatic transmission.

  Furthermore, the shift device described in Patent Document 3 includes one magnet disposed on the travel range selection lever and a three-axis Hall sensor disposed away from the magnet. In Patent Document 3, a three-axis Hall sensor detects a shift position by detecting a relative position of a magnet with respect to a three-axis Hall sensor in three dimensions.

JP 2007-237870 A JP 2008-520484 A JP 2012-522673 A

  However, in the techniques described in Patent Documents 1 to 3, since a plurality of shift positions are detected in a single magnetic field, a change in sensor output accompanying a shift lever operation is small, and a highly accurate sensor is required. There is room for improvement.

  The present invention has been made in consideration of the above facts, and an object thereof is to detect a plurality of shift positions without using a highly accurate sensor.

  In order to achieve the above object, the present invention provides a shift lever provided with a plurality of shift positions and moved along a plurality of select rows connected to each other, a detector for detecting the direction of magnetic flux, and the select A magnetic flux is generated in a plurality of directions corresponding to a row, and the detection unit detects a magnetic flux generated in a different direction for each select row to which the shift lever is moved, and for each shift position. And a magnetic flux generator arranged so that the directions of the magnetic flux detected by the detection unit are different from each other.

  According to the first aspect of the present invention, each of the plurality of select rows is provided with a plurality of shift positions, each of the select rows is connected, and the shift lever is moved along the select row.

  The detection unit detects the direction of the magnetic flux, and the magnetic flux generation unit generates the magnetic flux in a plurality of directions corresponding to the select row. The magnetic flux generation unit is arranged so that the detection unit detects the generated magnetic flux in a different direction for each select row where the shift lever is moved, and the direction of the magnetic flux detected by the detection unit is different for each shift position. Is arranged.

  With this configuration, the resolution (detection angle range of the magnetic flux direction at each shift position) when detecting the magnetic flux direction can be increased, so that a plurality of shift positions can be detected without using a highly accurate sensor. It becomes possible to do.

  An output unit that specifies the shift position and outputs the specified result based on the detection result of the detection unit may be further included. This makes it possible to select a gear of the transmission, notify the shift position, and the like.

  Moreover, you may make it apply the ball-shaft part which pivotally supports a shift lever in which the several magnet was embedded so that a magnetic flux generation part might generate | occur | produce a magnetic flux in a some direction. Alternatively, a ball shaft portion that supports the shift lever and is magnetized so as to generate magnetic flux in a plurality of directions may be applied.

  In addition, a plurality of select rows may be arranged along the vehicle front-rear direction, and each shift position may be reversed in the left-right direction of the vehicle so as to be changeable for the right handle and the left handle.

  As described above, according to the present invention, it is possible to detect a plurality of shift positions without using a highly accurate sensor.

1 is an external view of a shift device according to an embodiment of the present invention. (A) is a figure which shows the groove | channel where the shift lever of the shift apparatus which concerns on this embodiment moves, (B) is a side view which shows the structure of the principal part of the shift apparatus which concerns on this embodiment. (A) is a figure which shows the example which provided the magnet in the ball-axis part, (B) is a figure which shows the example which magnetized the ball-axis part. It is a figure which shows the direction of the magnetic flux for every shift position which a magnetic flux direction detection element detects. It is a block diagram which shows the structure of the control system of the shift apparatus which concerns on this embodiment. It is a figure which shows the direction of the magnetic flux generated from a ball shaft part in each shift position of select row A, (A) shows the direction of magnetic flux in "H" position, and (B) is in "B" position. Indicates the direction of magnetic flux. It is a figure which shows the direction of the magnetic flux generated from a ball shaft part in each shift position of select row B, (A) shows the direction of magnetic flux in "R" position, and (B) is in "N" position. The direction of the magnetic flux is shown, and (C) shows the direction of the magnetic flux at the “D” position. It is a flowchart which shows an example of the flow of the process performed with the controller of the shift apparatus which concerns on this embodiment. It is a figure which shows the example of the shift apparatus for left handles.

  Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is an external view of a shift device according to an embodiment of the present invention. 2A is a view showing a groove in which the shift lever of the shift device according to the present embodiment moves, and FIG. 2B shows the configuration of the main part of the shift device according to the present embodiment. It is a side view. In the drawing, the front of the shift device 10 is indicated by FR, the right side of the shift device 10 is indicated by RH, and the upper side of the shift device is indicated by UP. Further, the shift device 10 according to the present embodiment will be described for a right handle.

  The shift device 10 according to the present embodiment is applied to a vehicle (automobile), and the gear of the transmission is selected by the shift device 10. The shift device 10 will be described assuming that the front side, the right side, and the upper side are arranged toward the front of the vehicle, the right side of the vehicle, and the upper side of the vehicle, respectively. The shift device 10 may be disposed on the floor in the vehicle compartment, or may be disposed on an instrument panel, a steering column, or the like.

  As shown in FIG. 1, the shift device 10 has a shift knob 12 attached to a shift lever 12. When the occupant operates the shift knob 14 and moves the shift lever 12, the gear of the transmission can be selected.

  The shift device 10 includes a cover 16. A groove 18 is formed in the cover 16, and the shift lever 12 is movable along the groove 18 formed in the cover 16.

  As shown in FIG. 2A, the groove 18 is formed with two select rows A18a and B18b along the front-rear direction. One select column A18a is shorter than the other select column B18b, and the vicinity of the center of the other select column B18b and the end of one select column A18a are connected by a groove 18c.

  In this embodiment, as shown in FIG. 2A, the front end of one select row A18a is set to the “H” position, the rear end is set to the “B” position, and the front of the other select row B18b is set. The “R” position is at the end, the “D” position is at the rear end, and the “N” position is at the center. That is, in the present embodiment, the shift lever 12 can be moved to the shift positions of the “H” position, the “B” position, the “R” position, the “D” position, and the “N” position.

  The shape of the groove 18 and the shift position are not limited to those described above. For example, a so-called gate shift in which a groove is formed in a step shape may be applied, or other shapes may be applied. You may do it.

  As shown in FIG. 2B, the shift lever 12 includes a ball shaft portion 20 as a magnetic flux generating portion. The ball shaft portion 20 has a spherical shape and is held by a holding portion (not shown). That is, the shift lever 12 is guided along the groove 18 of the cover 16 by turning the shift lever 12 around the ball shaft portion 20. Note that the holding portion (not shown) may be provided on the vehicle body side or may be provided on the housing of the shift device 10. Alternatively, contrary to the present embodiment, the holding portion may be provided on the shift lever 12 side, and the ball shaft portion 20 may be provided on the vehicle body or the housing side of the shift device 10.

  Further, the shift device 10 is provided with a magnetic flux direction detection element 22 as a detection unit at a position facing the ball shaft portion 20 in the vehicle body or the housing of the shift device 10. As the magnetic flux direction detection element 22, for example, an MR-IC, a magnetoresistive element, a Hall element or the like can be used. As described above, when the ball shaft portion 20 is provided on the vehicle body or the housing side of the shift device 10, the magnetic flux direction detection element 22 is provided on the shift lever 12 side. Considering the wiring to the magnetic flux direction detection element 22, it is preferable to provide the magnetic flux direction detection element 22 not on the moving shift lever 12 side but on the vehicle body or the housing side of the shift device 10.

  In this embodiment, as shown in FIG. 2B, the ball shaft portion 20 generates magnetic fluxes in different directions (two directions in the present embodiment), and the magnetic flux generated from the ball shaft portion 20 is generated. The magnetic flux direction detection element 22 detects it. In the present embodiment, the ball shaft portion 20 generates magnetic flux in a plurality of directions corresponding to the select row. Further, the ball shaft portion 20 is arranged so that the magnetic flux direction detecting element 22 detects the generated magnetic flux in a different direction for each select row in which the shift lever is moved, and the magnetic flux direction detecting element 22 detects for each shift position. The magnetic flux directions are different from each other.

  Specifically, as shown in FIG. 2B, the ball shaft portion 20 of the present embodiment generates a magnetic flux in each of the first magnetic flux direction and the second magnetic flux direction, and the magnetic flux direction detection element 22 is shifted. According to the position of the lever 12, it is arrange | positioned in the position which can detect the magnetic flux of each direction. In the present embodiment, the magnetic flux direction detecting element 22 detects the magnetic flux in the first magnetic flux direction when the position of the shift lever 12 is the select row A18a, and the magnetic flux in the second magnetic flux direction is detected in the magnetic flux direction detecting element in the case of the select row B18b. 22 indicates the positional relationship detected. Further, when the shift lever 12 is moved to each shift position, the magnetic flux direction detection element 22 detects the magnetic flux in different directions.

  As a method of generating magnetic flux in a plurality of directions, for example, as shown in FIG. 3A, a plurality of magnets (two magnets 24a and 24b in the present embodiment) are provided in the ball shaft portion 20. Alternatively, as shown in FIG. 3B, the ball shaft portion 20 may be magnetized.

  By configuring in this way, the shift device 10 according to the present embodiment detects a magnetic flux in a direction in which the magnetic flux detected by the magnetic flux direction detecting element 22 is different for each shift position, as shown in FIG. In other words, the positional relationship between the ball shaft portion 20 and the magnetic flux direction detecting element 22 is a positional relationship in which magnetic flux is generated in different directions for each shift position of the plurality of shift positions.

  In this embodiment, the magnetic flux direction detected by the magnetic flux direction detection element 22 is an angle (flux direction detection element 22 in the order of “D” position, “N” position, “R” position, “H” position, and “B” position. The angle with respect to the normal line is increased. Each magnetic flux direction has an angle with respect to the normal line of the magnetic flux direction detecting element 22 of “a” when the position is “D”, b degrees when the position is “N”, c degrees when the position is “R”, “ It is assumed that the angle is set to d degrees for the “H” position and e degrees for the “B” position.

  Next, the configuration of the control system of the shift device 10 according to the present embodiment will be described. FIG. 5 is a block diagram illustrating a configuration of a control system of the shift device 10 according to the present embodiment.

  As shown in FIG. 5, the shift device 10 includes a controller 30. The controller 30 is connected to the magnetic flux direction detection element 22 described above, and is also connected to a transmission 32 and a shift indicator 34.

  The controller 30 determines the shift position based on the detection result of the magnetic flux direction detection element 22 and outputs the determination result to the transmission 32 and the shift indicator 34. For example, the controller 30 stores in advance a correspondence that defines the angle of the magnetic flux direction with respect to the normal line of the magnetic flux direction detection element 22 and the shift position. Thereby, the shift position can be determined from the direction (angle) of the magnetic flux detected by the magnetic flux direction detection element 22.

  The transmission 32 includes an actuator or the like for selecting a gear corresponding to the shift position determined by the controller 30, and drives the actuator or the like so as to select a gear corresponding to the determination result output from the controller 30.

  The shift indicator 34 performs a display corresponding to the shift position determined by the controller 30. For example, symbols such as “D”, “N”, “R”, “H”, and “B” are displayed. The shift indicator 34 may notify the shift position by a lamp or the like, or may display a symbol indicating the shift position by a liquid crystal or the like.

  Next, the operation of the shift device 10 according to the present embodiment configured as described above will be described. FIG. 6 is a diagram showing the direction of the magnetic flux generated from the ball shaft portion 20 at each shift position of the select row A18a, and FIG. 6 (A) shows the direction of the magnetic flux at the “H” position. B) shows the direction of the magnetic flux at the “B” position. FIG. 7 is a diagram showing the direction of the magnetic flux generated from the ball shaft portion 20 at each shift position of the select row B18b, and FIG. 7A shows the direction of the magnetic flux at the “R” position. 7 (B) shows the direction of the magnetic flux at the “N” position, and FIG. 7 (C) shows the direction of the magnetic flux at the “D” position.

  When the shift lever 12 of the shift device 10 is in the “H” position that is the home position, the magnetic flux direction detection element 22 detects the magnetic flux in the first magnetic flux direction as shown in FIG. At this time, the angle d degrees is detected as the direction of the magnetic flux by the magnetic flux direction detecting element 22.

  When the shift knob 14 is operated by the occupant to move the shift lever 12 from the “H” position to the rear “B” position, as shown in FIG. 6B, the magnetic flux direction detection element 22 moves in the first magnetic flux direction. Detect magnetic flux. At this time, the magnetic field direction detecting element 22 detects the angle e as the direction of the magnetic flux.

  When the shift knob 14 is moved by the occupant from the “H” position and the shift lever 12 is moved to the “N” position along the groove 18, as shown in FIG. 22 detects the magnetic flux in the second magnetic flux direction. At this time, the magnetic field direction detection element 22 detects the angle b as the direction of the magnetic flux.

  In addition, when the shift knob 14 is operated by the occupant and the shift lever 12 is moved to the front side of the select row B18b, as shown in FIG. 7A, the magnetic flux direction detection element 22 has a magnetic flux in the second magnetic flux direction. Is detected. At this time, the angle c degree is detected as the direction of the magnetic flux by the magnetic flux direction detecting element 22.

  When the shift knob 14 is moved to the rear side of the select row B18b by the occupant operating the shift knob 14, as shown in FIG. 7C, the magnetic flux direction detection element 22 has a magnetic flux in the second magnetic flux direction. Is detected. At this time, the magnetic field direction detection element 22 detects the angle a as the direction of the magnetic flux.

  Thus, since the magnetic flux direction detection element 22 detects the direction of the magnetic flux that differs for each shift position, the controller 30 can determine the shift position based on the detection result of the magnetic flux direction detection element 22. In addition, the ball axis portion 20 generates magnetic fluxes in a plurality of directions corresponding to the select rows, so that the detection resolution of the magnetic flux direction (the magnetic flux direction for each shift position) is higher than when the shift position is determined by a single magnetic flux. The angle range can be increased. Thereby, each shift position can be detected without using a highly accurate sensor.

  Next, specific processing performed by the controller 30 will be described. FIG. 8 is a flowchart illustrating an example of a flow of processing performed by the controller 30 of the shift device 10 according to the present embodiment. Note that the processing of FIG. 8 is started when an ignition switch (not shown) of the vehicle is turned on or the accessory is turned on.

  In step 100, the controller 30 acquires the detection result of the magnetic flux direction detection element 22, and the process proceeds to step 102.

  In step 102, the controller 30 determines whether or not the angle of the direction of the magnetic flux detected by the magnetic flux direction detection element 22 is a degree. If the determination is affirmative, the process proceeds to step 104, and if the determination is negative, the process proceeds to step 106.

  In step 104, the controller 30 determines that the shift position is the “D” position, outputs the determination result to the transmission 32 and the shift indicator 34, returns to step 100, and repeats the above processing.

  In step 106, the controller 30 determines whether or not the angle of the direction of the magnetic flux detected by the magnetic flux direction detection element 22 is b degrees. If the determination is affirmative, the process proceeds to step 108, and if the determination is negative, the process proceeds to step 110.

  In step 108, the controller 30 determines that the shift position is the “N” position, outputs the determination result to the transmission 32 and the shift indicator 34, returns to step 100, and repeats the above processing.

  In step 110, the controller 30 determines whether or not the angle of the direction of the magnetic flux detected by the magnetic flux direction detection element 22 is c degrees. If the determination is affirmative, the process proceeds to step 112, and if the determination is negative, the process proceeds to step 114.

  In step 112, the controller 30 determines that the shift position is the “R” position, outputs the determination result to the transmission 32 and the shift indicator 34, returns to step 100, and repeats the above processing.

  In step 114, the controller 30 determines whether or not the angle of the direction of the magnetic flux detected by the magnetic flux direction detection element 22 is d degrees. If the determination is affirmative, the process proceeds to step 116, and if the determination is negative, the process proceeds to step 118.

  In step 116, the controller 30 determines that the shift position is the “H” position, outputs the determination result to the transmission 32 and the shift indicator 34, returns to step 100, and repeats the above-described processing.

  In step 118, the controller 30 determines whether or not the angle of the direction of the magnetic flux detected by the magnetic flux direction detecting element 22 is e degrees. If the determination is affirmative, the process proceeds to step 120. If the determination is negative, the process returns to step 100 and the above-described processing is repeated.

  As the controller 30 performs the process in this manner, the shift position can be determined from the detection result of the magnetic flux direction detection element 22. When determining the shift position, as described above, the ball shaft portion 20 generates a magnetic flux in a plurality of directions corresponding to the select row, thereby increasing the detection resolution of the magnetic flux direction for each shift position. be able to. Thereby, each shift position can be detected without using a highly accurate sensor.

  Further, in the present embodiment, a plurality of shift positions can be detected by the ball shaft portion 20 that generates magnetic flux in a plurality of directions corresponding to the select row, and the magnetic flux direction detection element 22, so the number of sensors increases. Thus, an inexpensive shift device can be provided.

  In the above-described embodiment, an example in which two select columns of the select column A 18a and the select column B 18b are provided has been described. However, the present invention is not limited to this, and three or more select columns may be provided.

  In the above embodiment, the shift device 10 for the left steering wheel has been described. However, as shown in FIG. 9, the shape of the groove 18 of the cover 16 is reversed in the left-right direction of the vehicle, and the shift position determination logic is executed. If changed, it can also be used for the right handle.

  Although not particularly mentioned in the above embodiment, the shift device according to this embodiment may be applied to any vehicle that runs on an engine, a hybrid vehicle that includes a motor and an engine, an electric vehicle, and the like. .

  Further, the present invention is not limited to the above, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

10 Shift device 12 Shift lever 18 Groove 18a Select row A
18b Select row B
20 Ball shaft part 22 Magnetic flux direction detection element 24a, 24b Magnet 30 Controller

Claims (5)

A shift lever provided with a plurality of shift positions and moved along a plurality of select rows connected to each other, and
A detector for detecting the direction of the magnetic flux;
The detection unit is arranged so as to generate magnetic flux in a plurality of directions corresponding to the select row, and to detect the generated magnetic flux in a different direction for each select row to which the shift lever is moved, and the shift position. A magnetic flux generator disposed so that the direction of the magnetic flux detected by the detector is different from each other;
Including shift device.   The shift device according to claim 1, further comprising an output unit that specifies the shift position based on a detection result of the detection unit and outputs a specific result.   3. The shift device according to claim 1, wherein the magnetic flux generation unit is a ball shaft that pivotally supports a shift lever, in which a plurality of magnets are embedded so as to generate magnetic flux in the plurality of directions.   3. The shift device according to claim 1, wherein the magnetic flux generation section is a ball shaft section that is magnetized so as to generate magnetic flux in the plurality of directions and supports a shift lever. The plurality of select rows are rows along the vehicle front-rear direction, and each shift position is reversed in the left-right direction of the vehicle so that it can be changed between the right handle and the left handle. The shift device according to claim 1.