Shift device

Abstract

To improve detection accuracy of a shift position of a shift body.SOLUTION: In a shifter 10, a knob 14 is rotated to change a shift position of the knob 14. Further, a Hall IC 22 of a wiring substrate 20 detects a rotational position of a magnet 16 of the knob 14 to detect the shift position of the knob 14. Here, the Hall IC 22 is arranged on a radially outer side of rotation of the magnet 16. This can increase a change of a relative position between the magnet 16 and the Hall IC 22 because the rotation of the magnet 16, so that the detection accuracy of the shift position of the knob 14 can be improved.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a shift device in which a shift body is rotated to change the shift position of the shift body.

Background Art

[0002] In the shift device described in Patent Document 1 below, an operating element is rotated, and a permanent magnet is rotated, so that the relative rotational position between the permanent magnet and the Hall effect element is detected, and the shift position of the operating element is detected.

[0003] Here, in this shift device, a Hall effect element is arranged inside the rotation radial direction of the permanent magnet.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In consideration of the above facts, an object of the present invention is to obtain a shift device capable of improving the detection accuracy of the shift position of the shift body.

Means for Solving the Problems

[0006] The shift device according to the first aspect of the present invention includes a shift body that is rotated in the circumferential direction to change the shift position, a rotating portion that is rotated when the shift body is rotated, and an arranging portion that is arranged outside the rotation radial direction of the rotating portion, and a detection mechanism that detects the relative position between the rotating portion and the arranging portion to detect the shift position of the shift body.

[0007] The shift device according to the second aspect of the present invention is the shift device according to the first aspect of the present invention, in which the rotating portion is integrally provided on the shift body.

[0008] A third aspect of the present invention is a shift device in the first or second aspect of the present invention, wherein the shift body is displaced in the axial direction, the shift position of the shift body is changed, and the relative position of the rotating part with respect to the arrangement part is In the rotation axis direction of the aforementioned rotating part It is changed between one side and the other.

[0009] A shift device according to a fourth aspect of the present invention is a shift device according to any one of the first to third aspects of the present invention, wherein the plate-shaped component is installed and the shift body Axial axis It includes an installation member positioned perpendicular to it. [Effects of the Invention]

[0010] In the shift device according to the first aspect of the present invention, the shift body is rotated circumferentially to change the shift position of the shift body. Also, the rotation of the shift body causes the rotating part to rotate. Furthermore, the detection mechanism is provided with an arrangement part, and the relative position between the rotating part and the arrangement part is detected to detect the shift position of the shift body.

[0011] Here, the mounting section is positioned on the radially outer side of the rotating section. This allows for a greater change in the relative position between the rotating section and the mounting section due to the rotation of the rotating section in the circumferential direction, thereby improving the accuracy of detecting the shift position of the shift body.

[0012] In the shift device according to the second aspect of the present invention, the rotating part is integrally provided with the shift body. This simplifies the configuration.

[0013] In the shift device of the third aspect of the present invention, the shift body is displaced in the axial direction, thereby changing the shift position of the shift body.

[0014] Here, the shift body is displaced in the axial direction, and the relative position of the rotating part with respect to the arrangement part is In the rotation axis direction of the rotating part This change occurs between one side and the other. As a result, the relative position change between the rotating part and the positioned part due to the axial displacement of the shift body can be increased, improving the accuracy of detecting the shift position of the shift body.

[0015] In the shift device according to the fourth aspect of the present invention, the arrangement part is installed on the installation member, and the installation member is the shift body Axial axis It is positioned perpendicularly. Therefore, mechanisms other than the detection mechanism can be easily installed on the mounting member. [Brief explanation of the drawing]

[0016] [Figure 1] This is a rearward cross-sectional view showing a shift device according to an embodiment of the present invention. [Figure 2] Figures (A) to (C) are perspective views taken from the left rear, showing the main parts of the shift device according to an embodiment of the present invention, where (A) shows the knob in the "N" position, (B) shows the knob in the "R" position, and (C) shows the knob in the "D" position. [Figure 3] (A) and (B) are rear-view side views showing the detection status of the shift position of the knob in a shift device according to an embodiment of the present invention, where (A) shows the detection status of the knob at position "H" and (B) shows the detection status of the knob at position "N". [Figure 4] Figures (A) to (C) are top views taken from above, showing the detection status of the shift position of the knob in a shift device according to an embodiment of the present invention. (A) shows the detection status of the knob at position "D", (B) shows the detection status of the knob at positions "H" and "N", and (C) shows the detection status of the knob at position "R". [Modes for carrying out the invention]

[0017] Figure 1 shows a cross-sectional view of a shift device 10 according to an embodiment of the present invention, viewed from the rear. In the drawing, the front of the shift device 10 is indicated by the arrow FR, the left side of the shift device 10 is indicated by the arrow LH, and the top of the shift device 10 is indicated by the arrow UP.

[0018] The shift device 10 according to this embodiment is installed on a console (not shown) of a vehicle (automobile), and is disposed on the front side of the vehicle and inside the vehicle width direction of the driver's seat (not shown) of the vehicle. The front, left, and upper sides of the shift device 10 are respectively directed forward, left, and upward of the vehicle.

[0019] As shown in FIG. 1, the shift device 10 is provided with a plate 12 having a substantially rectangular parallelepiped box shape as a support (see FIG. 2(A)). The inside of the plate 12 is open at the lower side. The plate 12 is fixed in the console, and the upper wall of the plate 12 is disposed perpendicular to the vertical direction. A substantially cylindrical support cylinder 12A is integrally formed on the right side portion of the plate 12. The support cylinder 12A protrudes upward and extends to the upper side of the console.

[0020] A substantially bottomed cylindrical knob 14 (see FIG. 2(A)) as a shift body is supported on the support cylinder 12A of the plate 12, and the inside of the knob 14 is open at the lower side.

[0021] A substantially cylindrical knob base 14A as a shift member is provided at the lower side portion of the knob 14, and the support cylinder 12A is coaxially fitted inside the knob base 14A. For this reason, the knob 14 is supported by the support cylinder 12A, and the knob 14 is displaceable (slidable) in the vertical direction along the central axis O (see FIG. 1 etc.) and rotatable in one direction A and the other direction B (see FIG. 2(A) etc.) around the central axis O.

[0022] A substantially bottomed cylindrical knob upper 14B as an operation member is coaxially fixed on the upper side of the knob base 14A. The knob upper 14B is displaceable and rotatable integrally with the knob base 14A. The knob upper 14B is exposed in the vehicle interior of the vehicle, and the knob 14 is operable by a vehicle occupant (especially a driver) at the knob upper 14B.

[0023] The knob 14 is positioned at the "H" position (home position) as the shift position. The knob 14 is displaced downward from the "H" position to be positioned at the "N" position (neutral position) as the shift position (see Figure 2(A)). Furthermore, the knob 14 is rotated in the other direction B from the "N" position to be positioned at the "R" position (reverse position) as the shift position (see Figure 2(B)), and also rotated in one direction A from the "N" position to be positioned at the "D" position (drive position) as the shift position (see Figure 2(C)). The knob 14 is biased from the "N" position towards the "H" position, and also biased from the "R" position and the "D" position towards the "N" position. When the operating force on the knob 14 is released while the knob 14 is operated to a position other than the "H" position, the knob 14 returns to the "H" position (rotation and displacement) due to the biasing force.

[0024] A rectangular plate-shaped magnet 16 is integrally provided as a rotating part at the lower and left end of the knob 14 (knob base 14A), for example by insert molding, and the magnet 16 is displaceable and rotatable together with the knob 14. The magnet 16 is positioned perpendicular to the left-right direction and parallel to the up-down direction, and the magnet 16 is configured such that, for example, the left side is the north pole and the right side is the south pole, generating a magnetic flux M (see Figure 3(A)).

[0025] A detection mechanism 18 is provided on the left side of the magnet 16.

[0026] The detection mechanism 18 is provided with a roughly rectangular plate-shaped wiring board 20 as an installation member. The wiring board 20 is positioned vertically in the vertical direction on the upper left side of the plate 12. Multiple (three in this embodiment) Hole ICs 22 (so-called 3D Hole ICs) are fixed to the right end of the center in the vertical direction of the wiring board 20. The Hole ICs 22 are positioned on the upper and lower surfaces of the wiring board 20 with their positions slightly different from each other.

[0027] The Hall IC 22 is located near the left side of the magnet 16 of the knob 14 (outside in the radial direction of rotation of the magnet 16). As described above, when the knob 14 is in the "H" position, the Hall IC 22 is located below and to the left of the center of the left side (N pole) of the magnet 16, so that the direction of the magnetic flux M generated by the magnet 16 at the Hall IC 22 is directed downward as it moves to the left (see Figures 3(A) and 4(B)). When the knob 14 is in the "N" position, the Hall IC 22 is located above and to the left of the center of the left side (N pole) of the magnet 16, so that the direction of the magnetic flux M generated by the magnet 16 at the Hall IC 22 is directed upward as it moves to the left (see Figures 3(B) and 4(B)).

[0028] When the knob 14 is positioned in the "R" position, the Hall IC 22 is positioned above and in front of the center of the left side (N pole) of the magnet 16, so that the direction of the magnetic flux M generated by the magnet 16 at the Hall IC 22 is directed upward and forward as it moves to the left (see Figures 3(B) and 4(C)). When the knob 14 is positioned in the "D" position, the Hall IC 22 is positioned above and in rear of the center of the left side (N pole) of the magnet 16, so that the direction of the magnetic flux M generated by the magnet 16 at the Hall IC 22 is directed upward and in rear as it moves to the left (see Figures 3(B) and 4(A)).

[0029] As a result, the Hall IC 22 detects the direction of the magnetic flux M generated by the magnet 16, and the relative position between the magnet 16 and the Hall IC 22 is detected. This allows the displacement and rotational position of the knob 14 (magnet 16) to be detected, and thus the shift position of the knob 14 is detected.

[0030] A roughly rectangular box-shaped cover 24 is provided on the upper side of the shift device 10 as a covering. The cover 24 is open to the bottom and its top surface is exposed to the upper side of the console (inside the vehicle interior). The cover 24 covers the upper side of the plate 12 and the wiring board 20, and the knob 14 (knob upper 14B) passes through the right side portion of the cover 24.

[0031] A switch mechanism 26 is provided at the left end of the cover 24 as an operating mechanism. The switch mechanism 26 is equipped with a bottomed cylindrical "P" switch 26A as an operating part. The "P" switch 26A has its interior open to the bottom and is positioned above the wiring board 20. The top surface of the "P" switch 26A is flush with the top surface of the cover 24 and the "P" switch 26A can be pressed by the occupant. The switch mechanism 26 is equipped with an operation sensor 26B as an operation detection part. The operation sensor 26B is fixed on the wiring board 20 and detects the pressing operation of the "P" switch 26A.

[0032] The cover 24 is provided with an indicator 28, which serves as a lighting mechanism, to the right of the switch mechanism 26. The indicator 28 is equipped with a plate-shaped display panel 28A, which serves as a lighting unit. The display panel 28A is fixed to the upper wall of the cover 24 and is positioned vertically in the vertical direction. The upper surface of the display panel 28A is flush with the upper surface of the cover 24, and the display panel 28A is visible to the occupants from above. The indicator 28 is provided with a predetermined number of LEDs 28B, which serve as light-emitting units. The LEDs 28B are fixed on the wiring board 20 and are capable of generating light.

[0033] The wiring board 20 (Hall IC 22, operation sensor 26B, and LED 28B) is electrically connected to the vehicle's control device 30, and the vehicle's automatic transmission 32 (gearbox) is electrically connected to the control device 30.

[0034] Next, the operation of this embodiment will be explained.

[0035] In the shift device 10 configured as described above, when the "P" switch 26A is pressed in the switch mechanism 26 (when the operation sensor 26B of the wiring board 20 detects the pressing operation of the "P" switch 26A), the shift range of the automatic transmission 32 is changed to the "P" range (parking range) by the control device 30.

[0036] Furthermore, the knob 14 is displaced vertically (axially) and rotated in one direction A and the other direction B (circumferentially), thereby changing the shift position of the knob 14. When the knob 14 is positioned from the "H" position to the "N", "R", and "D" positions (when the Hall IC 22 on the wiring board 20 detects the knob 14 (magnet 16) being positioned from the "H" position to the "N", "R", and "D" positions), the shift range of the automatic transmission 32 is changed to the "N" range (neutral range), the "R" range (reverse range), and the "D" range (drive range), respectively, by the control device 30.

[0037] Furthermore, in the indicator 28, the control device 30 controls the LED 28B on the wiring board 20 to emit light, illuminating the shift range of the automatic transmission 32 on the upper side of the display panel 28A.

[0038] Here, the Hall IC 22 of the wiring board 20 is positioned on the radially outer (left) side of the magnet 16 of the knob 14. As a result, the change in the relative position between the magnet 16 and the Hall IC 22 due to the rotation of the magnet 16 in the circumferential direction (one direction A and the other direction B) can be greatly increased, the change in the direction of the magnetic flux M generated by the magnet 16 in the Hall IC 22 due to the rotation of the magnet 16 in the circumferential direction can be greatly increased, the detection accuracy of the rotational position of the magnet 16 by the Hall IC 22 can be improved, and the detection accuracy of the shift position of the knob 14 can be improved.

[0039] Furthermore, the knob 14 is displaced vertically, and the relative position between the center of the left side of the magnet 16 and the Hall IC 22 is changed between the upper and lower sides (between one side and the other side in the rotation axis direction of the magnet 16). As a result, the change in the relative position between the magnet 16 and the Hall IC 22 due to the vertical displacement of the magnet 16 can be greatly increased, the change in the direction of the magnetic flux M generated by the magnet 16 in the Hall IC 22 due to the vertical displacement of the magnet 16 can be greatly increased, the detection accuracy of the displacement position of the magnet 16 by the Hall IC 22 can be improved, and the detection accuracy of the shift position of the knob 14 can be improved.

[0040] Furthermore, multiple Hall ICs 22 are provided. This allows for increased redundancy in detecting the shift position of the knob 14, effectively improving the accuracy of the shift position detection.

[0041] Furthermore, the magnet 16 is integrally provided with the knob 14. Therefore, there is no need to provide a connecting mechanism to connect the knob 14 and the magnet 16, which simplifies the configuration. As a result, the accuracy of the displacement and rotation position of the magnet 16 due to the displacement and rotation of the knob 14 can be increased, further improving the accuracy of detecting the shift position of the knob 14, reducing the number of parts and thus reducing costs, as well as allowing the shift device 10 to be miniaturized.

[0042] Furthermore, the wiring board 20 on which the Hall IC 22 is installed is positioned perpendicular to the axial direction (up and down direction) of the knob 14. This allows for easy installation of the switch mechanism 26 and indicator 28 on the upper side of the wiring board 20, in addition to the detection mechanism 18. Moreover, the same wiring board 20 can be used for the detection mechanism 18, the switch mechanism 26, and the indicator 28, reducing the number of components and thus lowering costs, as well as allowing for miniaturization of the shift device 10.

[0043] In this embodiment, the Hall IC 22 is positioned on the inside (inward in the vertical direction) of the magnet 16 in the rotational axis direction. However, the Hall IC 22 may also be positioned on the outside (outward in the vertical direction) of the magnet 16 in the rotational axis direction.

[0044] Furthermore, in this embodiment, the magnet 16 is integrally provided on the knob 14 by insert molding. However, the magnet 16 may also be assembled and integrally provided on the knob 14.

[0045] Furthermore, in this embodiment, the magnet 16 is integrally provided with the knob 14, so that when the knob 14 is rotated, the magnet 16 is rotated. However, the magnet 16 may also be connected to the knob 14 via a connecting mechanism (such as a link mechanism or a gear mechanism), so that when the knob 14 is rotated, the magnet 16 is rotated via the connecting mechanism.

[0046] Furthermore, in this embodiment, a magnet 16 is provided on the knob 14 side, and a Hall IC 22 is provided independently of the knob 14 side. However, the Hall IC 22 (rotating part) may be provided on the knob 14 side, and the magnet 16 (placement part) may be provided independently of the knob 14 side.

[0047] In this embodiment, the shift device 10 is installed on the console. However, the shift device 10 may also be installed on other parts of the vehicle (such as the instrument panel or the steering column cover). [Explanation of symbols]

[0048] 10...Shift mechanism, 14...Knob (shift body), 16...Magnet (rotating part), 18...Detection mechanism, 20...Wiring board (mounting component), 22...Hall IC (placement part)

Claims

1. A shift body that is rotated in the circumferential direction to change the shift position, The shift body is rotated and the rotating part is rotated, A detection mechanism is provided which an arrangement portion is located only on the outer side in the radial direction of rotation of the rotating portion, and the relative position between the rotating portion and the arrangement portion is detected to detect the shift position of the shift body, An installation member which is in the shape of a plate and has the aforementioned arrangement portion installed at its end, and which is positioned perpendicular to the axial direction of the shift body only on the outer side in the radial direction of rotation of the rotating part, A shift device comprising the shift body being displaced in the axial direction, thereby changing the shift position of the shift body, and the relative position of the rotating part with respect to the arrangement part being changed between one side and the other side of the arrangement part in the rotation axis direction of the rotating part.

2. The shift device according to claim 1, wherein the rotating part is integrally provided with the shift body.

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