JP5085501B2 - Operation position calculation device - Google Patents

Description

  The present invention relates to an operation position calculation device.

  As a conventional technique, a lever main body, an operation lever provided on the lever main body so that the lever main body can be operated up and down, forward and backward, and a rotation operation, and first to first positions for detecting each operation of the operation lever 3 is known (for example, see Patent Document 1).

  The first detection unit has a cylindrical shape and is fixed to the operation knob. The first magnet rotates integrally with the operation knob. The first hall sensor is provided in the internal space of the first magnet. The first magnet rotates by rotating the operation knob of the operation lever, and the first Hall sensor detects and outputs a magnetic field change due to this rotation. The lighting of the headlight is controlled.

  The second detection unit is fixed to the shaft portion of the lever-operated unit via a magnet holder, and has a second magnet having a cylindrical shape, and a second Hall sensor provided in an internal space of the second magnet. The second magnet rotates by operating the operating lever in the vertical direction, and the first Hall sensor detects and outputs a change in the magnetic field due to this rotation. The turn-on of the blinker or the driving of the wiper is controlled.

The third detection unit includes a third magnet having a fan-shaped flat plate shape fixed to the lever body, and a third Hall sensor disposed at a position close to the upper surface of the third magnet, By operating the operation lever in the front-rear direction, the third Hall sensor detects and outputs a change in the magnetic field based on a change in the relative position of the third magnet and the third Hall sensor, and passing is performed according to the output level. , And driving of the washer are controlled.
JP 2003-86065 A

  However, since the conventional combination switch detects the operation directions of the three operation levers, each of them requires a magnet, and there is a problem that costs increase.

  Accordingly, an object of the present invention is to provide an operation position calculation device that detects operation positions in three directions with one magnet.

(1) In order to achieve the above object, the present invention achieves an angle of 90 ° between a magnetic field generating unit that generates a magnetic field and two magnetoresistive elements that use the magnetic field generated on the side surface of the magnetic field generating unit as a detection region. A half-bridge circuit formed, a first magnetoresistive circuit that outputs a first output signal having a sinusoidal shape based on a change in the magnetic field due to relative displacement with the magnetic field generation unit, A first magnetic sensor having a second magnetoresistive circuit that outputs a second output signal in the form of a cosine wave based on the change, and opposed to the first magnetic sensor via the magnetic field generator. A third magnetoresistive circuit that outputs a third output signal having a sine wave shape based on the change in the magnetic field, and a fourth magnetoresistive circuit that outputs a fourth output signal having a cosine wave shape based on the change in the magnetic field. 4 magnetoresistive circuit, and a second magnetism A first difference value is calculated based on the sensor and the first and third output signals, and a second difference value is calculated based on the second and fourth output signals. An operation position calculation device comprising: a calculation unit that calculates an arctangent value based on the first and second difference values and calculates a displacement amount of the relative displacement based on the calculated arctangent value. provide.

(2) In order to achieve the above object, the magnetic field generation unit is provided in an operation unit supported by a support mechanism so as to be tiltable and pushable, and a permanent magnet whose magnetization direction is the push operation direction. The first and third magnetoresistive circuits are formed such that the respective magnetosensitive directions form an angle of 45 ° with respect to the magnetization direction, and the second and fourth magnetoresistive circuits. Provides the operation position calculation device according to (1), wherein the magnetosensitive part of one magnetoresistive element is formed to be orthogonal to the magnetization direction.

(3) In order to achieve the above object, the second magnetic sensor rotates the third magnetoresistive circuit by 180 ° and outputs an inverted sine wave shaped fifth output signal. And the calculation unit calculates the arc tangent value from the third difference value and the second difference value calculated from the first and fifth output signals. The operation position calculation device according to (2), wherein a push operation position by the push operation of the operation unit is calculated based on the arctangent value.

(4) In order to achieve the above object, the present invention is provided in an operation unit supported by a support mechanism so that it can be tilted and pushed, and generates a magnetic field on a side surface of the magnetic field generation unit. A half-bridge circuit formed by forming two magnetic resistance elements having a detection region of the generated magnetic field at an angle of 90 °, and having a sine wave shape based on a change in the magnetic field accompanying a relative displacement with the magnetic field generation unit A first magnetoresistive circuit that outputs the first output signal and a second magnetoresistive circuit that outputs a second output signal in the form of a cosine wave based on the change in the magnetic field. A third magnetoresistive circuit that is provided opposite to the first magnetic sensor via the magnetic field generator and outputs a third output signal having a sinusoidal shape based on the change in the magnetic field; Based on the change of the magnetic field A fourth magnetoresistive circuit that outputs a fourth output signal in the form of a chord wave, and a fifth magnetoresistive circuit that rotates the third magnetoresistive circuit by 180 ° and outputs an inverted sine wave shaped fifth output signal A second magnetic sensor having a magnetoresistive circuit; and a first magnetic sensor provided at a position rotated 90 ° clockwise around the center of the first and second magnetic sensors. A sixth magnetoresistive circuit that has a similar configuration and outputs a sixth output signal in the form of a sine wave, and a seventh magnetoresistive circuit that has the same configuration as the second magnetoresistive circuit. A third magnetic sensor having a seventh magnetoresistive circuit for outputting a signal; and an eighth output having a configuration similar to that of the third magnetoresistive circuit and outputting an eighth output signal having a sinusoidal shape. And a cosine wave shape having the same configuration as the fourth magnetoresistive circuit. A fourth magnetic sensor having a ninth magnetoresistive circuit for outputting a ninth output signal, the first and third output signals, and the second and fourth output signals. A first arctangent value is calculated based on each calculated difference value, and based on the tilting operation in the first and second magnetic sensor directions based on the calculated first arctangent value. A displacement amount of the relative displacement is calculated, and a second arctangent is calculated based on the respective difference values calculated based on the sixth and eighth output signals and the seventh and ninth output signals. A calculation unit that calculates a value and calculates a displacement amount of the relative displacement based on the tilting operation in the third and fourth magnetic sensor directions based on the calculated second arctangent value. An operation position calculation device is provided.

(5) In order to achieve the above object, the calculation unit may calculate each difference value calculated based on the first and fifth output signals and the second and fourth output signals. The operation position calculation according to (4), wherein a third arc tangent value is calculated based on the third arc tangent value, and a push operation position by the push operation of the operation unit is calculated based on the calculated third arc tangent value. Providing equipment.

(6) In order to achieve the above object, the magnetic field generator has a magnetization direction in the push operation direction, a magnetic pole facing the first and second magnetic sensors, and the third and fourth. The operation position calculation apparatus according to any one of (4) and (5), wherein magnetic poles facing the magnetic sensor are different.

  According to such an invention, the operation position in three directions can be detected by one magnet.

  In the following, an embodiment of the operation position calculation apparatus of the present invention will be described in detail with reference to the drawings.

[Embodiment]
(Configuration of lever control switch device)
FIG. 1A is a schematic diagram of a lever control switch device according to an embodiment of the present invention, and FIG. 1B is a side view showing a positional relationship between a magnet and a magnetic sensor unit. A case where the operation position calculation device in the present invention is a lever control switch device will be described. FIG. 1B illustrates a case where the operation unit 17 is at the reference operation position. Further, FIG. 1B shows a second MR (Magneto Resistance) sensor 41 and a fourth MR sensor 43, each having a center connecting the first MR sensor 40 and the third MR sensor 42 as a rotation center. Since the first MR sensor 40 and the third MR sensor 42 are disposed at positions rotated 90 degrees around, both the side view of the first MR sensor 40 and the third MR sensor 42 and the side view of the second MR sensor 41 and the fourth MR sensor 43 are shown. This is illustrated in FIG.

  As an example, as shown in FIG. 1A, the lever control switch device 1 keeps the Y-axis support portion 15 perpendicular to the pedestal 11, and operates the operation portion 17 as the X-axis support portion 14 rotates. The X-axis direction is the direction of movement of the X-axis, the X-axis support part 14 is kept parallel to the pedestal 11, and the direction of movement of the operation unit 17 with the rotation of the Y-axis support part 15 is the Y-axis direction. The push direction with respect to the operation unit 17, in other words, the axial direction passing through the center of the magnet 2 described later is defined as the Z-axis direction, and the Z-axis is displaced about the intersection of the XY axes.

  In addition, an operation position in which the central axis of the operation unit 17 is orthogonal to the X axis and the Y axis is set as a reference operation position shown in FIG. Shall.

  For example, when the lever control switch device 1 is mounted on a vehicle, for example, the winker is switched by the operation position in the X direction, the high beam and the passing of the light are switched by the operation position in the Y direction, and the operation position in the Z direction is switched. The light can be turned on and off. The operation position in the X direction is a position rotated around the X axis, and the operation position in the Y direction is a position rotated around the Y axis.

  As shown in FIG. 1A, the lever control switch device 1 is schematically configured to include a magnet (magnetic field generation unit) 2, a magnetic sensor unit 4, a support mechanism unit 10, and an operation unit 17. Yes.

(Configuration of support mechanism)
As shown in FIG. 1A, the support mechanism unit 10 has a pair of convex portions 12 that stand up and face each other in the vertical direction from the upper surface of the base 11. The pin 13 inserted into the opening provided in the convex portion 12 is also inserted into the opening provided in the center of the corresponding two sides of the X-axis support portion 14 having a B shape, and the X-axis support portion 14 is connected to the pin 13. Is provided on the pedestal 11 so as to be rotatable about the rotation axis. The X-axis support portion 14 can tilt the operation portion 17 in the Y direction by using the pin 13 as a rotation axis.

  Further, the X-axis support portion 14 has an opening at the center of the other two sides, and the pins 16 are inserted into the openings provided at the corresponding ends of the Y-axis support portion 15 having a U-shape so that the Y-axis The support portion 15 is provided to be rotatable with respect to the X-axis support portion 14 with the pin 16 as a rotation axis. The Y-axis support part 15 can tilt the operation part 17 in the X direction by using the pin 16 as a rotation axis.

  In addition, the structure of the support mechanism part 10 is not limited to the above, The well-known support mechanism in which tilting operation and push operation are possible may be sufficient.

(Configuration of operation unit)
As shown in FIG. 1A as an example, the operation unit 17 includes a knob 18 having a substantially spherical shape and a lever 19 provided on the knob 18.

  The lever 19 is inserted into an opening provided on the upper surface in the longitudinal direction of the Y-axis support portion 15 and can move with respect to the Y-axis support portion 15 in the Z direction shown in FIG. Is provided.

  The lever 19 has a magnet 2 to be described later at the end facing the knob 18, and pushes the magnet 2 through the knob 18 and the lever 19 along the tilting operation position in the XY coordinate system and along the Z axis. It can be operated freely at the operation position.

(Composition of magnet)
FIG. 2 is a plan view showing the positional relationship of the magnetic sensor unit according to the embodiment of the present invention. The magnet 2 is a permanent magnet formed of alnico, ferrite, neodymium, or the like. As shown in FIG. 1B, the magnetization direction is the push operation direction, and the cross-sectional shape perpendicular to the magnetization direction is square. It has become a three-dimensional.

  As shown in FIG. 2, the magnet 2 is magnetized so that N poles, S poles, N poles, and S poles and magnetic domains are arranged in a clockwise direction with a diagonal line as a boundary, and an S pole below the N poles. However, it is magnetized so that the N pole is disposed below the S pole. In other words, the magnet 2 is configured such that the magnetic poles facing the first and third MR sensors 40 and 42 are different from the magnetic poles facing the second and fourth MR sensors 41 and 43.

  The magnet 2 forms a magnetic field 20 radially outward, and particularly in the detection region where the MR sensor is arranged, the direction change of the magnetic field 20 is steep. In other words, as shown in FIG. 2, the magnet 2 has a magnetic field 20 generated from the center of the side of the magnet 2 on the upper side (in the case of the S pole in FIG. 2) or on the lower side (N in FIG. 2). In the case of a pole).

  As shown in FIG. 1B, the magnet 2 has a thickness W1 of 5 mm as an example, and a width W2 shown in FIG. 3 of 10 mm as an example. Moreover, the magnet 2 can move ± 1 mm up and down along the Z-axis via the operation unit 17, that is, as a push operation position, for example. As an example, the magnet 2 has three operation positions: a first operation position (−1 mm), a second operation position (0 mm), and a third operation position (+1 mm).

  The magnet 2 is tilted from the Z-axis when it is in the reference operation position based on the tilting operation of the operation unit 17, and θ shown in FIG. 1B indicates the tilt. In addition, the shape of the magnet 2, magnetization, etc. are not limited to this, A cylindrical shape or a rectangular magnet may be sufficient, and it is not limited to this.

(Configuration of magnetic sensor unit 4)
The magnetic sensor unit 4 detects a change in the magnetic field 20 due to relative displacement with the magnet 2 and outputs a first half-bridge circuit (first output) that outputs a first output voltage (first output signal) V1. First magnetoresistive circuit) S1 and a first MR sensor (first magnetic sensor) having a second half-bridge circuit (second magnetoresistive circuit) S2 that outputs a second output voltage (second output signal) V2. Sensor) 40, a third half-bridge circuit (sixth magnetoresistive circuit) S3 that outputs a third output voltage (sixth output signal) V3, and a fourth output voltage (seventh output signal) V4. And outputs a second MR sensor (third magnetic sensor) 41 having a fourth half-bridge circuit (seventh magnetoresistive circuit) S4 and a fifth output voltage (fifth output signal) V5. Fifth half bridge circuit (fifth magnetoresistive circuit) S5 A sixth half-bridge circuit (third magnetoresistive circuit) S6 that outputs a sixth output voltage (third output signal) V6 and a seventh output voltage (fourth output signal) V7 that outputs a seventh output voltage (third output signal) V7. A third MR sensor (second magnetic sensor) 42 having a half-bridge circuit (fourth magnetoresistive circuit) S7 and an eighth half that outputs an eighth output voltage (eighth output signal) V8. Fourth MR sensor having a bridge circuit (eighth magnetoresistive circuit) S8 and a ninth half-bridge circuit (ninth magnetoresistive circuit) S9 that outputs a ninth output voltage (a ninth output signal) V9 (Fourth magnetic sensor) 43. The detailed configuration of each MR sensor will be described below.

(Configuration of first MR sensor)
FIG. 3A is an equivalent circuit diagram of the first MR sensor according to the embodiment of the present invention, and FIG. 3B is an equivalent circuit diagram of the second MR sensor.

  As shown in FIG. 1B, the first MR sensor 40 has a plurality of magnetoresistive elements, which will be described later, formed on a substrate 40a, and the magnetic field 20 generated in a predetermined region of the side surface of the magnet 2 is magnetic. The resistor element is provided so as to rise from the printed wiring board 3 so as to cross a magnetosensitive part described later. In other words, the first MR sensor 40 is provided on the printed wiring board 3 so that the plane formed by the X axis and the Z axis when in the reference operation position is substantially parallel to the plane formed by the magnetoresistive element. It has been.

  The equivalent circuit diagram shown in FIG. 3A shows a circuit diagram of the first MR sensor 40 shown in FIG. 1B, and M1 to M4 show magnetoresistive elements.

  As an example, the magnetoresistive element is formed of a thin film of ferromagnetic metal on the installation surface on the substrate 40a, and has a magnetosensitive part whose resistance value changes depending on the angle across the magnetic field. The rectangular shape shown in (a) has a shape folded back in the short direction. When the magnetic field crosses in parallel, the resistance value of the magnetosensitive part does not change, and the resistance value decreases as the angle between the magnetic field and the magnetosensitive part increases.

  As shown in FIG. 3A, the first MR sensor 40 forms a full bridge circuit by the magnetoresistive elements M1 to M4. Further, the first MR sensor 40 includes the first MR sensor 40 by the magnetoresistive element M1 and the magnetoresistive element M2. The half bridge circuit S1 and the second half bridge circuit S2 are formed by the magnetoresistive element M3 and the magnetoresistive element M4.

  The magnetoresistive element M1 and the magnetoresistive element M2 are arranged at an angle of 90 °, and the first half-bridge circuit S1 formed by the magnetoresistive element M1 and the magnetoresistive element M2 is in the reference operation position. The magnetic sensitive part is formed on the substrate 40a so as to be inclined at 45 ° with respect to a straight line parallel to the axis.

  The magnetoresistive element M3 and the magnetoresistive element M4 are arranged at an angle of 90 °, and the second half-bridge circuit S2 formed by the magnetoresistive element M3 and the magnetoresistive element M4 is in the reference operation position. The magnetoresistive element M3 is formed on the substrate 40a so that the magnetic sensitive part of the magnetoresistive element M3 is orthogonal to a straight line parallel to the axis.

A voltage _Vcc is applied between the magnetoresistive element M1 and the magnetoresistive element M3, and the magnetoresistive elements M2 and M4 are electrically connected to the ground circuit of the printed wiring board 3.

  The midpoint potential between the magnetoresistive element M1 and the magnetoresistive element M2 is the first output voltage V1, and the midpoint potential between the magnetoresistive element M3 and the magnetoresistive element M4 is the second output voltage. It is assumed that it is V2.

(Configuration of second MR sensor)
As shown in FIG. 1B, the second MR sensor 41 has a plurality of magnetoresistive elements formed on a substrate 41 a, and, like the first MR sensor 40, a predetermined region on the side surface of the magnet 2. Is generated so as to rise from the printed wiring board 3 so as to cross the magnetic sensitive portion of the magnetoresistive element. In other words, the second MR sensor 41 is provided on the printed wiring board 3 so that the plane formed by the Y axis and the Z axis when in the reference operation position is substantially parallel to the plane formed by the magnetoresistive element. It has been.

  The equivalent circuit diagram shown in FIG. 3B is a circuit diagram of the second MR sensor 41 shown in FIG. 1B, and the magnetoresistive elements M1 to M4 are the magnetoresistive elements of the first MR sensor 40. It has the same configuration as the elements M1 to M4.

  As shown in FIG. 3B, the second MR sensor 41 forms a full bridge circuit with the magnetoresistive elements M1 to M4. Further, the second MR sensor 41 includes the third MR sensor 41 with the magnetoresistive element M1 and the magnetoresistive element M2. The half-bridge circuit S3, the magnetoresistive element M3, and the magnetoresistive element M4 form a fourth half-bridge circuit S4.

A voltage _Vcc is applied between the magnetoresistive element M1 and the magnetoresistive element M3, and the magnetoresistive elements M2 and M4 are electrically connected to the ground circuit of the printed wiring board 3.

  The midpoint potential between the magnetoresistive element M1 and the magnetoresistive element M2 is the third output voltage V3, and the midpoint potential between the magnetoresistive element M3 and the magnetoresistive element M4 is the fourth output voltage. It is assumed that it is V4.

(Configuration of third MR sensor)
FIG. 4A is an equivalent circuit diagram of the third MR sensor according to the embodiment of the present invention, and FIG. 4B is an equivalent circuit diagram of the fourth MR sensor.

  As shown in FIG. 2, the third MR sensor 42 is provided at a position facing the first MR sensor 40 with the magnet 2 interposed therebetween, and as shown in FIG. A magnetoresistive element is formed, and similarly to the first MR sensor 40, a magnetic field 20 generated in a predetermined region of the side surface of the magnet 2 rises from the printed wiring board 3 so as to cross the magnetosensitive part of the magnetoresistive element. It is provided as follows. In other words, the third MR sensor 43 is provided on the printed circuit board 3 so that the plane formed by the X axis and the Z axis when in the reference operation position is substantially parallel to the plane formed by the magnetoresistive element. It has been.

  The equivalent circuit diagram shown in FIG. 4A is an equivalent circuit diagram of the third MR sensor 42 shown in FIG. 3, and the magnetoresistive elements M1 to M4 are the magnetoresistive element M1 of the first MR sensor 40. The magnetoresistive element M5 and the magnetoresistive element M6 have a configuration obtained by rotating the magnetoresistive element M1 and the magnetoresistive element M2 by 180 °.

  As shown in FIG. 4A, the third MR sensor 42 has a full bridge circuit formed by the magnetoresistive elements M1 and M2 and the magnetoresistive elements M5 and M6, and is further configured by the magnetoresistive elements M7 and M8. A seventh half-bridge circuit S7 is formed.

  In the full bridge circuit, a fifth half bridge circuit S5 is formed by the magnetoresistive element M1 and the magnetoresistive element M2, and a sixth half bridge circuit S6 is formed by the magnetoresistive element M5 and the magnetoresistive element M6.

  In addition, the magnetoresistive element M5 and the magnetoresistive element M6 are obtained by rotating the fifth half-bridge circuit S5 by 180 ° within the installation surface, so that the magnetosensitive part has 45 in the Z axis at the reference operation position. It is °.

A voltage _Vcc is applied between the magnetoresistive element M1 and the magnetoresistive element M5 and between the magnetoresistive element M3, and between the magnetoresistive elements M2 and M6 and between the magnetoresistive element M4 and the ground circuit of the printed circuit board 3. Is electrically connected.

  The midpoint potential between the magnetoresistive element M1 and the magnetoresistive element M2 is the fifth output voltage V5, and the midpoint potential between the magnetoresistive element M5 and the magnetoresistive element M6 is the sixth output voltage V6. It is assumed that the midpoint potential between the magnetoresistive element M3 and the magnetoresistive element M4 is the seventh output voltage V7.

(Configuration of the fourth MR sensor)
As shown in FIG. 2, the fourth MR sensor 43 is provided at a position facing the second MR sensor 41 via the magnet 2, and as shown in FIG. A magnetoresistive element is formed, and similarly to the first MR sensor 40, a magnetic field 20 generated in a predetermined region of the side surface of the magnet 2 rises from the printed wiring board 3 so as to cross the magnetosensitive part of the magnetoresistive element. It is provided as follows. In other words, the fourth MR sensor 43 is provided on the printed wiring board 3 so that the plane formed by the X axis and the Z axis when in the reference operation position is substantially parallel to the plane formed by the magnetoresistive element. It has been.

  The equivalent circuit diagram shown in FIG. 4B shows an equivalent circuit diagram of the fourth MR sensor 43 shown in FIG. 1B, and the magnetoresistive elements M5 and M6 are magnetic elements of the third MR sensor 42. The resistance elements M5 and M6 have the same configuration, and the magnetoresistance element M7 and the magnetoresistance element M8 have the same configuration as the magnetoresistance elements M7 and M8 of the third MR sensor 42. .

  As shown in FIG. 4B, the fourth MR sensor 43 forms a full bridge circuit by the magnetoresistive elements M5 and M6 and the magnetoresistive elements M7 and M8. Further, in this full-bridge circuit, an eighth half-bridge circuit S8 is formed by the magnetoresistive element M5 and the magnetoresistive element M6, and a ninth half-bridge circuit S9 is formed by the magnetoresistive element M7 and the magnetoresistive element M8. Yes.

A voltage _Vcc is applied between the magnetoresistive element M5 and the magnetoresistive element M7, and the magnetoresistive elements M6 and M8 are electrically connected to the ground circuit of the printed wiring board 3.

  The midpoint potential between the magnetoresistive element M5 and the magnetoresistive element M6 is the eighth output voltage V8, and the midpoint potential between the magnetoresistive element M7 and the magnetoresistive element M8 is the ninth output voltage V9. Suppose that

(Configuration of judgment unit)
FIG. 5 is a block diagram relating to the lever control switch device according to the embodiment of the present invention. As shown in FIG. 5, the determination unit (calculation unit) 5 of the lever control switch device 1 is connected to the magnetic sensor unit 4 and determines the operation position of the operation unit 17 based on an output signal output from the magnetic sensor unit 4. The determination result is transmitted to the vehicle control unit 6 that comprehensively controls the vehicle.

  The vehicle control unit 6 is connected to a controlled device 7 that can be operated by the lever control switch device 1 and controls the controlled device 7 based on the determination result. As described above as an example, the controlled device 7 in the present embodiment is a turn signal and a light, but is not limited to this, and is displayed on the operation or display screen of the car navigation system. It may be used for the operation of an icon or the like, and is not limited to this.

  The determination unit 5 calculates a difference value having a sine wave shape and a difference value having a cosine wave shape from an output signal output from each half bridge circuit, and an arctangent value as an angle conversion based on the calculated difference value. Based on the arc tangent value, the push operation position and the operation position by rotation around the X axis and the Y axis are calculated.

(Operation)
Hereinafter, operations relating to the lever control switch device according to the present embodiment will be described in detail with reference to the drawings. First, detection of an operation position in the Z-axis direction, that is, a push operation position will be described. In addition, the graph below is based on the result of the simulation under each condition. As an example, −10 ° ≦ X ≦ 10 °, −5.5 ° ≦ Y ≦ 5.5 °, −1.2 mm ≦ Z It is assumed that the operation unit 17 is operated within a range of ≦ 1.2 mm.

(Detection of operation position in the Z-axis direction when X = −10 ° and Y = −5.5 °)
FIG. 6 is a schematic diagram showing a combination of MR sensors for detecting the operation position of the Z axis according to the embodiment of the present invention, and FIG. 7A shows X = −10 according to the embodiment of the present invention. It is a graph regarding the difference value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis at the time of °, Y = −5.5 °, and FIG. It is a graph regarding the difference value V of the half bridge circuits S2 and S7 at the time of ° and the operation position of the Z axis, and (c) is a graph obtained by angle conversion. A case where the operation unit 17 is operated in the Z-axis direction while being fixed at X = −10 ° and Y = −5.5 ° will be described.

  As shown in FIG. 6, the determination unit 5 calculates a difference value (third difference value) V1-V5 from the output voltages of the half-bridge circuits S1 and S5 as a combination having a sine wave shape. According to this combination, when the operation unit 17 is operated in the Z-axis direction while being fixed at X = −10 ° and Y = −5.5 °, the calculated difference value V1−V5 is as shown in FIG. As shown to (a), it becomes a sine wave shape.

  Similarly, the determination unit 5 calculates a difference value (second difference value) V2-V7 from the output voltages of the half-bridge circuits S2 and S7 as a combination having a cosine wave shape as shown in FIG. According to this combination, when the operation unit 17 is operated in the Z-axis direction while being fixed at X = −10 ° and Y = −5.5, the calculated difference value V2−V7 is shown in FIG. As shown in b), it has a cosine wave shape.

  The determination unit 5 calculates an arctangent value (third arctangent value) based on the difference value V1-V5 having a sine wave shape and the difference value V2-V7 having a cosine wave shape. As shown in FIG. 7C, the calculated arc tangent value is a straight line descending from the left to the right in the drawing, that is, a linear graph, and the determination unit 5 easily determines the operation position in the Z-axis direction. be able to.

(Detection of operation position in the Z-axis direction when X = 0 ° and Y = −5.5 °)
FIG. 8A is a graph relating to the differential value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = 0 ° and Y = −5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the operation position on the Z axis when X = 0 ° and Y = −5.5 °, and (c) is obtained by angle conversion. It is the obtained graph. A case where the operation unit 17 is operated in the Z-axis direction while being fixed at X = 0 ° and Y = −5.5 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V5 shown in FIG. 8A and the difference value V2-V7 shown in FIG. As shown in FIG. 8C, the calculated arctangent value is a straight line descending from the left to the right in the figure, that is, a linear graph, and the determination unit 5 easily determines the operation position in the Z-axis direction. be able to.

(Detection of operation position in the Z-axis direction when X = 10 ° and Y = −5.5 °)
FIG. 9A is a graph relating to the differential value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = 10 ° and Y = −5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the operation position on the Z axis when X = 10 ° and Y = −5.5 °, and (c) is obtained by angle conversion. It is the obtained graph. A case where the operation unit 17 is operated in the Z-axis direction while being fixed at X = 10 ° and Y = −5.5 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V5 shown in FIG. 9A and the difference value V2-V7 shown in FIG. As shown in FIG. 9C, the calculated arctangent value is a straight line that goes down from the left to the right in the figure, that is, a linear graph, and the determination unit 5 easily determines the operation position in the Z-axis direction. be able to.

  Next, a case where the operation unit 17 performs a push operation and a tilt operation around the X axis while being fixed at Y = 0 ° will be described.

(Detection of operation position in the Z-axis direction when X = −10 ° and Y = 0 °)
FIG. 10A is a graph relating to the difference value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = −10 ° and Y = 0 ° according to the embodiment of the present invention. b) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the operation position of the Z axis when X = −10 ° and Y = 0 °, and (c) is a graph obtained by angle conversion. It is. A case will be described in which the operation unit 17 is operated in the Z-axis direction while being fixed at X = −10 ° and Y = 0 °.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V5 illustrated in FIG. 10A and the difference value V2-V7 illustrated in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 10C, and the determination unit 5 can easily determine the operation position in the Z-axis direction.

(Detection of operation position in the Z-axis direction when X = 0 ° and Y = 0 °)
FIG. 11A is a graph relating to the difference value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = 0 ° and Y = 0 ° according to the embodiment of the present invention. ) Is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when X = 0 ° and Y = 0 ° and the operation position of the Z axis, and (c) is a graph obtained by angle conversion. . A case where the operation unit 17 is operated in the Z-axis direction while being fixed at X = 0 ° and Y = 0 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V5 shown in FIG. 11A and the difference value V2-V7 shown in FIG. The calculated arctangent value is a linear graph as shown in FIG. 11C, and the determination unit 5 can easily determine the operation position in the Z-axis direction.

(Detection of operation position in the Z-axis direction when X = 10 ° and Y = 0 °)
FIG. 12A is a graph relating to the difference value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = 10 ° and Y = 0 ° according to the embodiment of the present invention. ) Is a graph regarding the differential value V of the half-bridge circuits S2 and S7 and the operation position of the Z axis when X = 10 ° and Y = 0 °, and (c) is a graph obtained by angle conversion. . A case where the operation unit 17 is operated in the Z-axis direction while being fixed at X = 10 ° and Y = 0 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V5 shown in FIG. 12A and the difference value V2-V7 shown in FIG. The calculated arctangent value is a linear graph as shown in FIG. 12C, and the determination unit 5 can easily determine the operation position in the Z-axis direction.

  Next, the case where the operation unit 17 performs a push operation and a tilt operation around the X axis while being fixed at Y = 5.5 ° will be described.

(Detection of operation position in the Z-axis direction when X = −10 ° and Y = 5.5 °)
FIG. 13A is a graph relating to the differential value V of the half-bridge circuits S1 and S5 and the Z-axis operation position when X = −10 ° and Y = 5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the operation position of the Z-axis when X = −10 ° and Y = 5.5 °, and (c) is obtained by angle conversion. It is the obtained graph. A case where the operation unit 17 is operated in the Z-axis direction while being fixed at X = −10 ° and Y = 5.5 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V5 shown in FIG. 13A and the difference value V2-V7 shown in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 13C, and the determination unit 5 can easily determine the operation position in the Z-axis direction.

(Detection of operation position in the Z-axis direction when X = 0 ° and Y = 5.5 °)
FIG. 14A is a graph relating to the differential value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = 0 ° and Y = 5.5 ° according to the embodiment of the present invention, (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the operation position of the Z axis when X = 0 ° and Y = 5.5 °, and (c) is obtained by angle conversion. It is a graph. A case where the operation unit 17 is operated in the Z-axis direction while being fixed at X = 0 ° and Y = 5.5 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V5 shown in FIG. 14A and the difference value V2-V7 shown in FIG. The calculated arctangent value is a linear graph as shown in FIG. 14C, and the determination unit 5 can easily determine the operation position in the Z-axis direction.

(Detection of operation position in the Z-axis direction when X = 10 ° and Y = 5.5 °)
FIG. 15A is a graph relating to the difference value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = 10 ° and Y = 5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the operation position of the Z axis when X = 10 ° and Y = 5.5 °, and (c) is obtained by angle conversion. It is a graph. A case where the operation unit 17 is operated in the Z-axis direction while being fixed at X = 10 ° and Y = 5.5 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V5 shown in FIG. 15A and the difference value V2-V7 shown in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 15C, and the determination unit 5 can easily determine the operation position in the Z-axis direction.

  As described above, the lever control switch device 1 calculates the arc tangent value based on the difference value V1-V5 and the difference value V2-V7, and thus does not depend on the tilting operation around the X axis and the Y axis. The operation position in the Z-axis direction, that is, the push operation position can be detected. Next, detection of a tilting operation around the X axis will be described.

(Detection of tilting operation position around the X axis when Z = −1.0 mm and Y = −5.5 °)
FIG. 16 is a schematic diagram showing a combination of MR sensors for detecting the tilting operation position around the X axis according to the embodiment of the present invention, and FIG. 17 (a) shows Z = according to the embodiment of the present invention. It is a graph regarding the difference value V of the half-bridge circuits S3 and S8 when Y = −5.5 ° and the tilting operation position around the X axis, and (b) is Z = −1.0 mm, It is a graph regarding the difference value V of the half bridge circuits S4 and S9 when Y = −5.5 ° and the tilt operation position around the X axis, and (c) is a graph obtained by angle conversion. A case where the operation unit 17 is tilted around the X axis while being fixed at Z = −1.0 mm and Y = −5.5 ° will be described.

  As shown in FIG. 16, the determination unit 5 calculates a difference value V3-V8 from the output voltages of the half bridge circuits S3 and S8 as a combination having a sine wave shape. According to this combination, when the operation unit 17 is tilted around the X axis while being fixed at Z = −1.0 mm and Y = −5.5 °, the calculated difference value V3−V8 is As shown to Fig.17 (a), it becomes a sine wave shape in which the code | symbol was reversed.

  Similarly, the determination unit 5 calculates a difference value V4-V9 from the output voltages of the half bridge circuits S4 and S9 as a combination having a cosine wave shape as shown in FIG. According to this combination, when the operation unit 17 is tilted around the X axis while being fixed at Z = −1.0 mm and Y = −5.5 °, the calculated difference value V4−V9 is As shown in FIG. 17B, it has a cosine wave shape.

  The determination unit 5 calculates an arctangent value (first arctangent value) based on the difference value V3-V8 that is a sine wave and the difference value V4-V9 that is a cosine wave. As shown in FIG. 17C, the calculated arc tangent value is a straight line that rises from the left to the right in the figure, that is, a linear graph. The determination unit 5 easily determines the tilt operation position around the X axis. can do.

(Detection of operation position in the Z-axis direction when Z = 0 mm and Y = −5.5 °)
FIG. 18A is a graph relating to the difference value V of the half-bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = 0 mm and Y = −5.5 ° according to the embodiment of the present invention. And (b) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 when Z = 0 mm and Y = −5.5 ° and the tilt operation position around the X axis, and (c) is the angle. It is the graph obtained by conversion. A case where the operation unit 17 is tilted around the X axis while being fixed at Z = 0 mm and Y = −5.5 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V3-V8 shown in FIG. 18A and the difference value V4-V9 shown in FIG. As shown in FIG. 18C, the calculated arctangent value is a straight line that rises from the left to the right in the figure, that is, a linear graph, and the determination unit 5 easily determines the tilt operation position around the X axis. can do.

(Detection of tilting operation position around the X axis when Z = 1.0 mm and Y = −5.5 °)
FIG. 19A relates to the difference value V of the half bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = 1.0 mm and Y = −5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 when Z = 1.0 mm and Y = −5.5 ° and the tilting operation position around the X-axis, (c) ) Is a graph obtained by angle conversion. The case where the operation unit 17 is tilted around the X axis while being fixed at Z = 1.0 mm and Y = −5.5 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V3-V8 shown in FIG. 19A and the difference value V4-V9 shown in FIG. As shown in FIG. 19C, the calculated arc tangent value is a straight line that rises from the left to the right in the drawing, that is, a linear graph, and the determination unit 5 easily determines the tilt operation position around the X axis. can do.

  Next, a case where the operation unit 17 performs a push operation and a tilt operation around the X axis while being fixed at Y = 0 ° will be described.

(Detection of tilting operation position around the X axis when Z = -1.0 mm and Y = 0 °)
FIG. 20A is a graph relating to the difference value V of the half-bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = −1.0 mm and Y = 0 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 and the tilting operation position around the X axis when Z = −1.0 mm and Y = 0 °, and (c) is the angle. It is the graph obtained by conversion. A case where the operation unit 17 is tilted around the X axis while being fixed at Z = −1.0 mm and Y = 0 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V3-V8 shown in FIG. 20A and the difference value V4-V8 shown in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 20C, and the determination unit 5 can easily determine the tilt operation position around the X axis.

(Detection of tilting operation position around the X axis when Z = 0mm and Y = 0 °)
FIG. 21A is a graph relating to the difference value V of the half-bridge circuits S3 and S8 and the tilting operation position around the X axis when Z = 0 mm and Y = 0 ° according to the embodiment of the present invention. b) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 when Z = 0 mm and Y = 0 ° and the tilt operation position around the X axis, and (c) is a graph obtained by angle conversion. It is. A case where the operation unit 17 is tilted around the X axis while being fixed at Z = 0 mm and Y = 0 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V3-V8 shown in FIG. 21A and the difference value V4-V9 shown in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 21C, and the determination unit 5 can easily determine the tilt operation position around the X axis.

(Detection of tilting operation position around the X axis when Z = 1.0 mm and Y = 0 °)
FIG. 22A is a graph relating to the difference value V of the half-bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = 1.0 mm and Y = 0 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 when Z = 1.0 mm and Y = 0 ° and the tilting operation position around the X axis, and (c) is obtained by angle conversion. It is the obtained graph. A case where the operation unit 17 is tilted around the X axis while being fixed at Z = 1.0 mm and Y = 0 ° will be described.

  The determination unit 5 calculates an arc tangent value based on the difference value V3-V8 shown in FIG. 22A and the difference value V4-V9 shown in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 22C, and the determination unit 5 can easily determine the tilt operation position around the X axis.

  Next, the case where the operation unit 17 performs a push operation and a tilt operation around the X axis while being fixed at Y = 5.5 ° will be described.

(Detection of tilting operation position around the X axis when Z = −1.0 mm and Y = 5.5 °)
FIG. 23A shows the difference value V of the half bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = −1.0 mm and Y = 5.5 ° according to the embodiment of the present invention. (B) is a graph relating to the difference value V of the half-bridge circuits S4 and S9 when Z = −1.0 mm and Y = 5.5 ° and the tilting operation position around the X axis; ) Is a graph obtained by angle conversion. A case where the operation unit 17 is tilted around the X axis while being fixed at Z = −1.0 mm and Y = 5.5 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V3-V8 shown in FIG. 23A and the difference value V4-V9 shown in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 23C, and the determination unit 5 can easily determine the tilt operation position around the X axis.

(Detection of tilting operation position around the X axis when Z = 0 mm and Y = 5.5 °)
FIG. 24A is a graph regarding the difference value V of the half-bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = 0 mm and Y = 5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 when Z = 0 mm and Y = 5.5 ° and the tilting operation position around the X axis, and (c) is obtained by angle conversion. It is the obtained graph. The case where the operation unit 17 is tilted around the X axis while being fixed at Z = 0 mm and Y = 5.5 ° will be described.

  The determination unit 5 calculates an arc tangent value based on the difference value V3-V8 shown in FIG. 24A and the difference value V4-V9 shown in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 24C, and the determination unit 5 can easily determine the tilt operation position around the X axis.

(Detecting the tilting operation position around the X axis when Z = 1.0 mm and Y = 5.5 °)
FIG. 25A is a graph regarding the difference value V of the half-bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = 1.0 mm and Y = 5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 when Z = 1.0 mm and Y = 5.5 ° and the tilt operation position around the X axis, and (c) is It is the graph obtained by angle conversion. The case where the operation unit 17 is tilted around the X axis while being fixed at Z = 1.0 mm and Y = 5.5 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V3-V8 shown in FIG. 25A and the difference value V4-V9 shown in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 25C, and the determination unit 5 can easily determine the tilt operation position around the X axis.

  As described above, the lever control switch device 1 calculates the arctangent value based on the difference value V3-V8 and the difference value V4-V9, thereby tilting around the Y axis. The tilting operation around the X axis can be detected without depending on the operation. Next, detection of a tilting operation around the Y axis will be described.

(Detection of tilting operation position around the Y axis when Z = −1.0 mm and X = −10 °)
FIG. 26 is a schematic diagram showing a combination of MR sensors for detecting the tilt operation position around the Y axis according to the embodiment of the present invention, and FIG. 27 (a) shows Z = according to the embodiment of the present invention. It is a graph regarding the difference value V of the half-bridge circuits S1 and S6 when X is −1.0 mm and X = −10 ° and the tilt operation position around the Y axis, and (b) is Z = −1.0 mm and X = It is a graph regarding the difference value V of the half-bridge circuits S2 and S7 at the time of −10 ° and the tilt operation position around the Y axis, and (c) is a graph obtained by angle conversion. A case where the operation unit 17 is tilted around the Y axis while being fixed at Z = −1.0 mm and X = −10 ° will be described.

  As shown in FIG. 26, the determination unit 5 calculates a difference value (first difference value) V1-V6 from the output voltages of the half-bridge circuits S1 and S6 as a combination having a sine wave shape. According to this combination, when the operation unit 17 is tilted around the Y axis while being fixed at Z = −1.0 mm and X = −10 °, the rotation angle around the Y axis is small, so the calculation is performed. The difference value V1-V6 is a sinusoidal curve close to a straight line, as shown in FIG.

  Similarly, as shown in FIG. 26, the determination unit 5 calculates a difference value (second difference value) V2-V7 from the output voltages of the half bridge circuits S2 and S7 as a combination having a cosine wave shape. According to this combination, when the operation unit 17 is tilted around the Y axis while being fixed at Z = −1.0 mm and X = −10 °, the difference value calculated for the same reason as described above. As shown in FIG. 27B, V2-V7 is a cosine wave-shaped curve close to a straight line.

  The determination unit 5 calculates an arctangent value (first arctangent value) based on the difference value V1-V6 having a sine wave shape and the difference value V2-V7 having a cosine wave shape. As shown in FIG. 27C, the calculated arc tangent value is a straight line descending from the left to the right in the figure, that is, a linear graph, and the determination unit 5 easily determines the tilt operation position around the Y axis. can do.

(Detection of tilting operation position around the X axis when Z = 0 mm and X = −10 °)
FIG. 28A is a graph regarding the difference value V of the half-bridge circuits S1 and S6 and the tilt operation position around the Y axis when Z = 0 mm and X = −10 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when Z = 0 mm and X = −10 ° and the tilting operation position around the Y axis, and (c) is obtained by angle conversion. It is a graph. The case where the operation unit 17 is tilted around the Y axis while being fixed at Z = 0 mm and X = −10 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V6 shown in FIG. 28A and the difference value V2-V7 shown in FIG. As shown in FIG. 28C, the calculated arc tangent value is a straight line descending from left to right in the figure, that is, a linear graph, and the determination unit 5 easily determines the tilt operation position around the Y axis. can do.

(Detection of tilting operation position around the Y axis when Z = 1.0 mm and X = −10 °)
FIG. 29A is a graph relating to the difference value V of the half-bridge circuits S1 and S6 and the tilt operation position around the Y axis when Z = 1.0 mm and X = −10 ° according to the embodiment of the present invention. And (b) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the tilt operation position around the Y axis when Z = 1.0 mm and X = −10 °, and (c) is the angle. It is the graph obtained by conversion. The case where the operation unit 17 is tilted around the Y axis while being fixed at Z = 1.0 mm and X = −10 ° will be described.

  The determination unit 5 calculates an arc tangent value based on the difference value V1-V6 shown in FIG. 29A and the difference value V2-V7 shown in FIG. As shown in FIG. 29C, the calculated arc tangent value is a straight line descending from the left to the right in the figure, that is, a linear graph, and the determination unit 5 easily determines the tilt operation position around the Y axis. can do.

  Subsequently, a case where the operation unit 17 performs a push operation and a tilting operation around the Y axis while being fixed at X = 0 ° will be described.

(Detecting the tilting operation position around the Y axis when Z = -1.0 mm and X = 0 °)
FIG. 30A is a graph relating to the difference value V of the half-bridge circuits S1 and S6 and the tilt operation position around the Y axis when Z = −1.0 mm and X = 0 ° according to the embodiment of the present invention. And (b) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when Z = −1.0 mm and X = 0 ° and the tilting operation position around the Y axis, and (c) is the angle. It is the graph obtained by conversion. The case where the operation unit 17 is tilted around the Y axis while being fixed at Z = −1.0 mm and X = 0 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V6 shown in FIG. 30A and the difference value V2-V7 shown in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 30C, and the determination unit 5 can easily determine the tilt operation position around the Y axis.

(Detection of tilting operation position around Y axis when Z = 0mm and X = 0 °)
FIG. 31A is a graph regarding the difference value V of the half-bridge circuits S1 and S6 and the tilt operation position around the Y axis when Z = 0 mm and X = 0 ° according to the embodiment of the present invention. b) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when Z = 0 mm and X = 0 ° and the tilt operation position around the Y axis, and (c) is a graph obtained by angle conversion. It is. A case where the operation unit 17 is tilted around the Y axis while being fixed at Z = 0 mm and X = 0 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V6 shown in FIG. 31A and the difference value V2-V7 shown in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 31C, and the determination unit 5 can easily determine the tilt operation position around the Y axis.

(Detection of tilting operation position around the Y axis when Z = 1.0 mm and X = 0 °)
FIG. 32A is a graph regarding the difference value V of the half-bridge circuits S1 and S6 and the tilt operation position around the Y axis when Z = 1.0 mm and X = 0 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when Z = 1.0 mm and X = 0 ° and the tilting operation position around the Y axis, and (c) is obtained by angle conversion. It is the obtained graph. The case where the operation unit 17 is tilted around the Y axis while being fixed at Z = 1.0 mm and X = 0 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V6 shown in FIG. 32A and the difference value V2-V7 shown in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 32C, and the determination unit 5 can easily determine the tilt operation position around the Y axis.

  Next, a case where the operation unit 17 performs a push operation and a tilt operation around the Y axis while being fixed at X = 10 ° will be described.

(Detection of tilting operation position around the Y axis when Z = −1.0 mm and X = 10 °)
FIG. 33A is a graph relating to the difference value V of the half bridge circuits S1 and S6 and the tilting operation position around the Y axis when Z = −1.0 mm and X = 10 ° according to the embodiment of the present invention. And (b) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the tilt operation position around the Y axis when Z = −1.0 mm and X = 10 °, and (c) is the angle. It is the graph obtained by conversion. The case where the operation unit 17 is tilted around the Y axis while being fixed at Z = −1.0 mm and X = 10 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V6 shown in FIG. 33A and the difference value V2-V7 shown in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 33C, and the determination unit 5 can easily determine the tilt operation position around the Y axis.

(Detecting the tilting operation position around the Y axis when Z = 0 mm and X = 10 °)
FIG. 34 (a) is a graph relating to the difference value V of the half-bridge circuits S1 and S6 and the tilt operation position around the Y axis when Z = 0 mm and X = 10 ° according to the embodiment of the present invention. b) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when Z = 0 mm and X = 10 ° and the tilting operation position around the Y axis, and (c) is a graph obtained by angle conversion. It is. The case where the operation unit 17 is tilted around the Y axis while being fixed at Z = 0 mm and X = 10 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V6 shown in FIG. 34 (a) and the difference value V2-V7 shown in FIG. 34 (b). The calculated arc tangent value is a linear graph as shown in FIG. 34C, and the determination unit 5 can easily determine the tilt operation position around the Y axis.

(Detecting the tilting operation position around the Y axis when Z = 1.0 mm and X = 10 °)
FIG. 35A is a graph regarding the difference value V of the half-bridge circuits S1 and S6 and the tilting operation position around the Y axis when Z = 1.0 mm and X = 10 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when Z = 1.0 mm and X = 10 ° and the tilting operation position around the Y axis, and (c) is obtained by angle conversion. It is the obtained graph. The case where the operation unit 17 is tilted around the Y axis while being fixed at Z = 1.0 mm and X = 10 ° will be described.

  The determination unit 5 calculates an arctangent value based on the difference value V1-V6 shown in FIG. 35A and the difference value V2-V7 shown in FIG. The calculated arctangent value becomes a linear graph as shown in FIG. 35C, and the determination unit 5 can easily determine the tilt operation position around the Y axis.

  As described above, the lever control switch device 1 calculates the arctangent value based on the difference value V1−V6 and the difference value V2−V7, thereby tilting around the X axis. A tilting operation around the Y axis can be detected without depending on the operation.

(effect)
(1) The lever control switch device 1 according to the present embodiment has three magnet operation positions, ie, a push operation position in the Z-axis direction, a tilt operation position around the X axis, and a tilt operation position around the Y axis. Can be detected.

(2) The lever control switch device 1 according to the present embodiment uses the half bridge circuits S1 to S9 to independently set the push operation position in the Z-axis direction, the tilt operation position around the X axis, and the tilt operation position around the Y axis. Can be detected.

(3) In the lever control switch device 1 according to the present embodiment, since the magnet 2 has the shape shown in FIG. 2, a steeper magnetic field 20 can be generated. Based on this, an output voltage with a large change can be output.

(4) The lever control switch device 1 according to the present embodiment can be manufactured at low cost because the magnet 2 is a permanent magnet.

(5) Since the lever control switch device 1 in the present embodiment detects the operation position of the operation unit 17 by calculating the arc tangent value, the operation position can be accurately detected.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from or changing the technical idea of the present invention.

FIG. 1A is a schematic diagram of a lever control switch device according to an embodiment of the present invention, and FIG. 1B is a side view showing a positional relationship between a magnet and a magnetic sensor unit. FIG. 2 is a plan view showing the positional relationship of the magnetic sensor unit according to the embodiment of the present invention. FIG. 3A is an equivalent circuit diagram of the first MR sensor according to the embodiment of the present invention, and FIG. 3B is an equivalent circuit diagram of the second MR sensor. FIG. 4A is an equivalent circuit diagram of the third MR sensor according to the embodiment of the present invention, and FIG. 4B is an equivalent circuit diagram of the fourth MR sensor. FIG. 5 is a block diagram relating to the lever control switch device according to the embodiment of the present invention. FIG. 6 is a schematic diagram showing a combination of MR sensors for detecting the operation position of the Z axis according to the embodiment of the present invention. FIG. 7A is a graph relating to the difference value V and the Z-axis operation position of the half-bridge circuits S1 and S5 when X = −10 ° and Y = −5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the operation position on the Z axis when X = −10 ° and Y = −5.5 °, and (c) is an angle. It is the graph obtained by conversion. FIG. 8A is a graph relating to the differential value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = 0 ° and Y = −5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the operation position on the Z axis when X = 0 ° and Y = −5.5 °, and (c) is obtained by angle conversion. It is the obtained graph. FIG. 9A is a graph relating to the differential value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = 10 ° and Y = −5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the operation position on the Z axis when X = 10 ° and Y = −5.5 °, and (c) is obtained by angle conversion. It is the obtained graph. FIG. 10A is a graph relating to the difference value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = −10 ° and Y = 0 ° according to the embodiment of the present invention. b) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the operation position of the Z axis when X = −10 ° and Y = 0 °, and (c) is a graph obtained by angle conversion. It is. FIG. 11A is a graph relating to the difference value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = 0 ° and Y = 0 ° according to the embodiment of the present invention. ) Is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when X = 0 ° and Y = 0 ° and the operation position of the Z axis, and (c) is a graph obtained by angle conversion. . FIG. 12A is a graph relating to the difference value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = 10 ° and Y = 0 ° according to the embodiment of the present invention. ) Is a graph regarding the differential value V of the half-bridge circuits S2 and S7 and the operation position of the Z axis when X = 10 ° and Y = 0 °, and (c) is a graph obtained by angle conversion. . FIG. 13A is a graph relating to the differential value V of the half-bridge circuits S1 and S5 and the Z-axis operation position when X = −10 ° and Y = 5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the operation position of the Z-axis when X = −10 ° and Y = 5.5 °, and (c) is obtained by angle conversion. It is the obtained graph. FIG. 14A is a graph relating to the differential value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = 0 ° and Y = 5.5 ° according to the embodiment of the present invention, (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the operation position of the Z axis when X = 0 ° and Y = 5.5 °, and (c) is obtained by angle conversion. It is a graph. FIG. 15A is a graph relating to the difference value V of the half-bridge circuits S1 and S5 and the operation position on the Z axis when X = 10 ° and Y = 5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the operation position of the Z axis when X = 10 ° and Y = 5.5 °, and (c) is obtained by angle conversion. It is a graph. FIG. 16 is a schematic diagram showing a combination of MR sensors for detecting a tilting operation position around the X axis according to the embodiment of the present invention. FIG. 17A shows the tilt operation position around the X axis and the difference value V of the half bridge circuits S3 and S8 when Z = −1.0 mm and Y = −5.5 ° according to the embodiment of the present invention. (B) is a graph relating to the difference value V of the half-bridge circuits S4 and S9 when Z = −1.0 mm and Y = −5.5 ° and the tilting operation position around the X axis, (C) is a graph obtained by angle conversion. FIG. 18A is a graph relating to the difference value V of the half-bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = 0 mm and Y = −5.5 ° according to the embodiment of the present invention. And (b) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 when Z = 0 mm and Y = −5.5 ° and the tilt operation position around the X axis, and (c) is the angle. It is the graph obtained by conversion. FIG. 19A relates to the difference value V of the half bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = 1.0 mm and Y = −5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 when Z = 1.0 mm and Y = −5.5 ° and the tilting operation position around the X-axis, (c) ) Is a graph obtained by angle conversion. FIG. 20A is a graph relating to the difference value V of the half-bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = −1.0 mm and Y = 0 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 and the tilting operation position around the X axis when Z = −1.0 mm and Y = 0 °, and (c) is the angle. It is the graph obtained by conversion. FIG. 21A is a graph relating to the difference value V of the half-bridge circuits S3 and S8 and the tilting operation position around the X axis when Z = 0 mm and Y = 0 ° according to the embodiment of the present invention. b) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 when Z = 0 mm and Y = 0 ° and the tilt operation position around the X axis, and (c) is a graph obtained by angle conversion. It is. FIG. 22A is a graph relating to the difference value V of the half-bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = 1.0 mm and Y = 0 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 when Z = 1.0 mm and Y = 0 ° and the tilting operation position around the X axis, and (c) is obtained by angle conversion. It is the obtained graph. FIG. 23A shows the difference value V of the half bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = −1.0 mm and Y = 5.5 ° according to the embodiment of the present invention. (B) is a graph relating to the difference value V of the half-bridge circuits S4 and S9 when Z = −1.0 mm and Y = 5.5 ° and the tilting operation position around the X axis; ) Is a graph obtained by angle conversion. FIG. 24A is a graph regarding the difference value V of the half-bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = 0 mm and Y = 5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 when Z = 0 mm and Y = 5.5 ° and the tilting operation position around the X axis, and (c) is obtained by angle conversion. It is the obtained graph. FIG. 25A is a graph regarding the difference value V of the half-bridge circuits S3 and S8 and the tilt operation position around the X axis when Z = 1.0 mm and Y = 5.5 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S4 and S9 when Z = 1.0 mm and Y = 5.5 ° and the tilt operation position around the X axis, and (c) is It is the graph obtained by angle conversion. FIG. 26 is a schematic diagram showing a combination of MR sensors for detecting a tilt operation position around the Y axis according to the embodiment of the present invention. FIG. 27A is a graph regarding the difference value V of the half-bridge circuits S1 and S6 and the tilt operation position around the Y axis when Z = −1.0 mm and X = −10 ° according to the embodiment of the present invention. (B) is a graph relating to the difference value V of the half-bridge circuits S2 and S7 when Z = −1.0 mm and X = −10 ° and the tilt operation position around the Y axis, and (c) is It is the graph obtained by angle conversion. FIG. 28A is a graph regarding the difference value V of the half-bridge circuits S1 and S6 and the tilt operation position around the Y axis when Z = 0 mm and X = −10 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when Z = 0 mm and X = −10 ° and the tilting operation position around the Y axis, and (c) is obtained by angle conversion. It is a graph. FIG. 29A is a graph relating to the difference value V of the half-bridge circuits S1 and S6 and the tilt operation position around the Y axis when Z = 1.0 mm and X = −10 ° according to the embodiment of the present invention. And (b) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the tilt operation position around the Y axis when Z = 1.0 mm and X = −10 °, and (c) is the angle. It is the graph obtained by conversion. FIG. 30A is a graph relating to the difference value V of the half-bridge circuits S1 and S6 and the tilt operation position around the Y axis when Z = −1.0 mm and X = 0 ° according to the embodiment of the present invention. And (b) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when Z = −1.0 mm and X = 0 ° and the tilting operation position around the Y axis, and (c) is the angle. It is the graph obtained by conversion. FIG. 31A is a graph regarding the difference value V of the half-bridge circuits S1 and S6 and the tilt operation position around the Y axis when Z = 0 mm and X = 0 ° according to the embodiment of the present invention. b) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when Z = 0 mm and X = 0 ° and the tilt operation position around the Y axis, and (c) is a graph obtained by angle conversion. It is. FIG. 32A is a graph regarding the difference value V of the half-bridge circuits S1 and S6 and the tilt operation position around the Y axis when Z = 1.0 mm and X = 0 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when Z = 1.0 mm and X = 0 ° and the tilting operation position around the Y axis, and (c) is obtained by angle conversion. It is the obtained graph. FIG. 33A is a graph relating to the difference value V of the half bridge circuits S1 and S6 and the tilting operation position around the Y axis when Z = −1.0 mm and X = 10 ° according to the embodiment of the present invention. And (b) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 and the tilt operation position around the Y axis when Z = −1.0 mm and X = 10 °, and (c) is the angle. It is the graph obtained by conversion. FIG. 34 (a) is a graph relating to the difference value V of the half-bridge circuits S1 and S6 and the tilt operation position around the Y axis when Z = 0 mm and X = 10 ° according to the embodiment of the present invention. b) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when Z = 0 mm and X = 10 ° and the tilting operation position around the Y axis, and (c) is a graph obtained by angle conversion. It is. FIG. 35A is a graph regarding the difference value V of the half-bridge circuits S1 and S6 and the tilting operation position around the Y axis when Z = 1.0 mm and X = 10 ° according to the embodiment of the present invention. (B) is a graph regarding the difference value V of the half-bridge circuits S2 and S7 when Z = 1.0 mm and X = 10 ° and the tilting operation position around the Y axis, and (c) is obtained by angle conversion. It is the obtained graph.

Explanation of symbols

M1 to M8 ... magnetoresistive elements, S1 to S9 ... first to ninth half bridge circuits, V1 to V9 ... first to ninth output voltages, _Vcc ... voltage, 1 ... lever control switch device, 2 ... magnet DESCRIPTION OF SYMBOLS 3 ... Printed wiring board, 4 ... Magnetic sensor part, 5 ... Determination part, 6 ... Vehicle control part, 7 ... Controlled apparatus, 10 ... Support mechanism part, 11 ... Base, 12 ... Convex part, 13 ... Pin, 14 ... X-axis support part, 15 ... Y-axis support part, 16 ... pin, 17 ... operation part, 18 ... knob, 19 ... lever, 20 ... magnetic field, 40-43 ... first to fourth MR sensors, 40a to 43a …substrate

Claims (6)

A magnetic field generator for generating a magnetic field;
A half-bridge circuit formed by two magnetoresistive elements having a detection region as the magnetic field generated on the side surface of the magnetic field generation unit at an angle of 90 °, and the magnetic field accompanying relative displacement with the magnetic field generation unit A first magnetoresistive circuit that outputs a first output signal in the form of a sine wave based on the change of the second, and a second magnetoresistive circuit that outputs a second output signal in the form of a cosine wave based on the change of the magnetic field And a third output signal having a sinusoidal shape based on the change of the magnetic field. The first magnetic sensor is provided to face the first magnetic sensor via the magnetic field generator. A second magnetic sensor having a third magnetoresistive circuit and a fourth magnetoresistive circuit that outputs a fourth output signal in the form of a cosine wave based on the change in the magnetic field;
A first difference value is calculated based on the first and third output signals, a second difference value is calculated based on the second and fourth output signals, and the calculated first difference value is calculated. And a calculation unit that calculates an arctangent value based on the second difference value, and calculates a displacement amount of the relative displacement based on the calculated arctangent value;
An operation position calculation device comprising: The magnetic field generation unit is a permanent magnet provided in an operation unit supported so as to be tilted and pushed by a support mechanism, and a magnetization direction is the push operation direction,
The first and third magnetoresistive circuits are formed such that each of the magnetic sensitive directions forms an angle of 45 ° with respect to the magnetization direction,
2. The operation position calculation device according to claim 1, wherein the second and fourth magnetoresistive circuits are formed so that the magnetosensitive part of one magnetoresistive element is orthogonal to the magnetization direction. The second magnetic sensor has a fifth magnetoresistive circuit that rotates the third magnetoresistive circuit by 180 ° and outputs an inverted sinusoidal fifth output signal,
The calculation unit calculates the arc tangent value from the third difference value and the second difference value calculated from the first and fifth output signals, and based on the calculated arc tangent value The operation position calculation device according to claim 2, wherein a push operation position by the push operation of the operation unit is calculated. A magnetic field generation unit that is provided in an operation unit supported so as to be tilted and pushed by a support mechanism, and generates a magnetic field;
A half-bridge circuit formed by two magnetoresistive elements having a detection region as the magnetic field generated on the side surface of the magnetic field generation unit at an angle of 90 °, and the magnetic field accompanying relative displacement with the magnetic field generation unit A first magnetoresistive circuit that outputs a first output signal in the form of a sine wave based on the change of the second, and a second magnetoresistive circuit that outputs a second output signal in the form of a cosine wave based on the change of the magnetic field And a third output signal having a sinusoidal shape based on the change of the magnetic field. The first magnetic sensor is provided to face the first magnetic sensor via the magnetic field generator. A third magnetoresistive circuit, a fourth magnetoresistive circuit that outputs a fourth output signal in the form of a cosine wave based on the change in the magnetic field, and the third magnetoresistive circuit rotated 180 ° and inverted Outputs a fifth output signal in the form of a sine wave. A second magnetic sensor having 5 magnetoresistive circuits;
The first and second magnetic sensors are provided at a position rotated 90 ° clockwise around the center of rotation, and have the same configuration as the first magnetoresistive circuit. A sixth magnetoresistive circuit that outputs an output signal; and a seventh magnetoresistive circuit that has a configuration similar to that of the second magnetoresistive circuit and that outputs a seventh output signal in the form of a cosine wave. A third magnetic sensor, an eighth magnetoresistive circuit having a configuration similar to that of the third magnetoresistive circuit, and outputting an eighth output signal having a sinusoidal shape; and the fourth magnetoresistive circuit; A fourth magnetic sensor having a similar configuration and having a ninth magnetoresistive circuit that outputs a ninth output signal in the form of a cosine wave;
A first arc tangent value is calculated based on the respective difference values calculated based on the first and third output signals and the second and fourth output signals, and the calculated first tangent value is calculated. A displacement amount of the relative displacement based on the tilting operation in the first and second magnetic sensor directions is calculated based on an arctangent value of 1, and the sixth and eighth output signals; and the seventh And a second arctangent value is calculated based on the respective difference values calculated based on the ninth output signal, and the third and fourth values are calculated based on the calculated second arctangent value. A calculating unit that calculates a displacement amount of the relative displacement based on the tilting operation in the magnetic sensor direction;
An operation position calculation device comprising:   The calculating unit calculates a third arc tangent value based on respective difference values calculated based on the first and fifth output signals and the second and fourth output signals; The operation position calculation device according to claim 4, wherein a push operation position by the push operation of the operation unit is calculated based on the calculated third arctangent value.   The magnetic field generation unit has a magnetization direction that is the push operation direction, and a magnetic pole that faces the first and second magnetic sensors is different from a magnetic pole that faces the third and fourth magnetic sensors. The operation position calculation apparatus according to any one of 5.

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