KR20080033658A - Multi-function switch for automobile - Google Patents

Abstract

A multi-functional switch for a vehicle is provided to calculate the total rotation angle of a steering wheel using a unit for detecting an angle of the steering wheel and automatically cancel a switch lever based on the calculated rotation angle. A multi-functional switch for a vehicle comprises a switch lever(11) that operates various lamps provided in a vehicle. A controller is connected with the switch lever and includes a PCB substrate having various terminals and pins. A housing(17) contains the switch lever and the PCB substrate. A rotor(21) rotates together with a steering shaft. A main gear(22) is fixed to the rotor and rotates together with the rotor. First and second rotating gears(23,24) rotate together with the main gear. First and second magnetic members(25,26) are fixed to the first and second rotating gears, respectively, and rotate together with the first and second rotating gears at the same rotation rate.

Description

Automotive Multifunction Switch {MULTI-FUNCTION SWITCH FOR AUTOMOBILE}

1 is a perspective view of a conventional vehicle multifunction switch,

2 is an exploded perspective view of a multifunction switch for a vehicle according to the present invention;

3 is a plan view of a steering wheel sensitivity detection unit for a vehicle according to the present invention;

4 is a block diagram showing the control of the vehicle multifunction switch and the vehicle angle detecting unit according to the first embodiment of the present invention;

FIG. 5 is a block diagram illustrating the control of the vehicle multifunction switch and the vehicle angle detecting unit according to the second embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: Automotive multi-function switch 11: switch lever

13: PCB substrate 15: control unit

17 housing 20 vehicle steering wheel angle detection unit

21: rotor 22: main gear

23: first rotating gear 24: second rotating gear

25: first magnetic material 26: second magnetic material

27: first detection unit 28: second detection unit

31: gear seating part 41: first MCU (Micro Controller Unit)

42: low speed can 43: second MCU (Micro Controller Unit)

44: high speed can 45: integrated MCU (Micro Controller Unit)

50: power window 60: ESP (Electronic Stability Program)

The present invention relates to a multi-function switch for a vehicle, in particular, a vehicle steering wheel angle detection unit is built into the multi-function switch for a vehicle to calculate the total rotation angle of the steering wheel, and can automatically cancel the switch lever based on the calculated rotation angle. The present invention relates to a vehicle multifunction switch.

A steering wheel angle detecting unit for a vehicle provided in a conventional vehicle includes a disk having a plurality of holes formed on a surface thereof, a sensing sensor detecting rotation of a steering wheel, and an angle and direction change of a steering wheel based on the detected result. It was composed of a control unit for calculating the operation.

By the way, the conventional steering wheel angle detection unit, a relative angle recognition method for identifying the neutral position of the steering wheel, and recognizes the left and right rotation angle at the current position, the problem of not detecting the current correct steering wheel position There was this.

In addition, referring to Figure 1, in general, the vehicle multi-function switch 145 is formed with an opening 134 through which the vehicle steering shaft can be penetrated, the switch lever for operating the direction indicator light on one side of the multi-function switch for the vehicle. 106 is provided.

Here, a cancel cam 120 having a pair of cam protrusions 132 having a symmetrical structure is formed at the center of the vehicle multifunction switch 145, and at one side thereof, the ratchet 110 is operated in contact with the cam protrusion. Is prepared.

Looking at the operation of the vehicle multi-function switch 145 having the above-described structure, first, the switch lever 106 is operated in the upward or downward direction. In this case, the ratchet 110 installed on one side of the vehicle multifunction switch 145 moves in the direction of the cancel cam 120, and the ratchet 110 contacts the cam protrusion 132 of the cancel cam 120. do.

Here, the direction indicator of the vehicle is turned on through a signal generated by the contact of the ratchet 110 and the cam protrusion 132, and the vehicle rotates according to the direction indicator.

Next, when the rotation of the vehicle is completed and the steering wheel is rotated in the reverse direction, the ratchet 110 which is in contact with the cam protrusion 132 also rotates, and the switch lever is rotated by the rotation of the ratchet 110. 106) is automatically canceled.

In the vehicle multifunction switch 145 according to the above operation process, the ratchet 110 installed at one side of the vehicle multifunction switch 145 is moved by a predetermined length in the direction of the cancel cam 120, and the ratchet 110 is disposed. Is in contact with the cam projection 132 of the cancel cam 120.

As a result, a friction sound is generated due to the impact applied to the cam protrusion 132 of the cancel cam 120 by the ratchet 110, and the bone ratchet 110 and the bone cam protrusion 132 are worn out due to the friction. Or there was a problem that is broken.

In addition, the conventional vehicle multi-function switch receives a signal from the MCU (Micro Controller Unit) controlling the multi-function switch for the vehicle through a low speed can communication method, the conventional steering wheel angle detection unit for the vehicle is the vehicle The signal was transmitted from the MCU (Micro Controller Unit) that controls the steering wheel angle detection unit through the High Speed Can communication method.

Here, in the case of the automatic cancellation of the multi-function switch for the vehicle in a conventional manner, the MCU for controlling the multi-function switch for the vehicle that saw the signal of the calculation result by calculating the total rotation angle by the steering wheel angle of the vehicle steering wheel angle detection unit ( Micro Controller Unit).

In this case, an apparatus for mediating the high speed can communication method in which the steering wheel for the vehicle is transmitted and the low speed can communication method in which the multifunction switch for the vehicle is transmitted; That is, there is a problem in that a device such as a gateway is additionally required.

Accordingly, it is an object of the present invention to provide a multifunctional switch for a vehicle capable of recognizing a rotation angle of a steering wheel that performs multiple rotations as an absolute angle.

In addition, another object of the present invention is a vehicle angle detection unit and a vehicle multi-function switch

It is to provide a multi-function switch for the vehicle that can be automatically canceled based on the results detected by the vehicle steering wheel angle detection unit integrally.

Another object of the present invention is to provide a separate device such as a gateway by providing a microcontroller unit (MCU) for controlling a vehicle steering wheel angle detection unit and a microcontroller unit (MCU) for controlling a multifunction switch for a vehicle on a single PCB board. It is to provide a multi-function vehicle switch that can communicate with each other without.

The present invention has been made to improve the problems of the above-described multi-function vehicle switch, characterized in that the vehicle steering wheel angle detection unit built in the vehicle multi-function switch.

In order to achieve the above object, the present invention includes a switch lever for operating a variety of lamps provided in the vehicle; A control unit connected to the switch lever and including a PCB board provided with various terminals and pins; A multi-function switch for a vehicle including: a housing accommodating the switch lever and the PCB board, the rotor rotating in association with a steering shaft which transmits a manipulation force to a wheel; A main gear fixed to the rotor and integrally rotating; A first rotary gear and a second rotary gear interlocked with the main gear; A first magnetic body and a second magnetic body fixed to the first rotation gear and the second rotation gear, respectively, and rotating at the same rotation ratio as the first rotation gear and the second rotation gear; A steering wheel angle sensing unit for a vehicle in the housing including a first sensing unit and a second sensing unit respectively sensing a phase change of polarity (N pole, S pole) by rotation of the first magnetic body and the second magnetic body; It is characterized in that it is configured to be built.

Here, the multi-function switch for a vehicle may further include a gear seating part for seating the main gear, the first rotary gear, and the second rotary gear.

In addition, the housing may be provided as an upper housing and a lower housing.

Preferably, the control unit of the steering wheel on the basis of the phase change of the polarity (N pole, S pole) by the rotation of the first magnetic material and the second magnetic material detected by the first sensing unit and the second sensing unit. It may be characterized by calculating the total rotation angle.

The first sensing unit and the second sensing unit may be provided as an anisotropic magnetic resistor (AMR) sensor.

In addition, the first sensing unit and the second sensing unit may be provided as a GMR (Giant Magnetic Resistor) sensor.

Preferably, the first sensing unit and the second sensing unit may be installed to be spaced apart from the first magnetic body and the second magnetic body by more than 20 millimeters (mm), exceeding 0 millimeters (mm).

On the other hand, the first rotary gear and the second rotary gear may have a different radius from each other, and in conjunction with the main gear may be characterized in that to generate a signal of a sinusoidal waveform different from each other during rotation.

In addition, the first rotary gear or the second rotary gear may be provided integrally with the first magnetic body or the second magnetic body, respectively.

Here, the control unit determines the rotation direction of the vehicle on the basis of the calculated total rotation angle of the steering wheel, the cancellation signal to enable automatic cancellation of the direction indicating switch provided in the multi-function switch for the vehicle when the original wheel after the rotation of the steering wheel. You can output

On the other hand, the PCB substrate, the first MCU (Micro Controller Unit) for controlling the signal generated during the operation of the multi-function switch for the vehicle by a low speed can (Low Speed Can) communication method and the steering wheel angle detection unit for the vehicle It may include a second MCU (Micro Controller Unit) for controlling the generated signal by a high speed can (High Speed Can) communication method.

The first microcontroller unit and the second microcontroller unit may be provided to communicate with each other on the PCB board.

Preferably, the first microcontroller unit and the second microcontroller unit may be provided on the PCB board as one integrated microcontroller unit.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention.

Referring to FIG. 2, the vehicle multifunction switch 10 according to the present invention includes a switch lever 11 for operating various lamps provided in a vehicle, connected to the switch lever 11, and provided with various terminals and pins. A multifunctional switch 10 for a vehicle including a control unit 15 including a PCB board 13 and a housing 17 for accommodating the switch lever 11 and the PCB board 13 to transmit a driving force to a wheel. A rotor 21 that rotates in conjunction with a steering shaft, a main gear 22 that is fixed to the rotor 21 and rotates integrally, and a first rotary gear 23 that rotates in conjunction with the main gear 22. ) And the same rotation ratio as the first rotary gear 23 and the second rotary gear 24 fixed to the second rotary gear 24 and the first rotary gear 23 and the second rotary gear 24, respectively. Rotation of the first magnetic body 25 and the second magnetic body 26 and the first magnetic body 25 and the second magnetic body 26 to rotate to A steering wheel angle detecting unit 20 for a vehicle including a first sensing unit 27 and a second sensing unit 28 for detecting a phase change of one polarity (N pole and S pole), respectively, is located in the housing 17. It is configured to be built.

Here, the vehicle multifunction switch 10 may further include a gear seat 31 for seating the main gear 22, the first rotary gear 23, and the second rotary gear 24. Can be.

Here, the PCB board 13 provided inside the vehicle multifunction switch 10 controls a signal generated when the vehicle multifunction switch 10 is operated by a low speed can 42 communication method. The first MCU (Micro Controller Unit) 41 and the second MCU for controlling the signal generated by the steering wheel angle detection unit 20 for the vehicle by the High Speed Can (44) communication method ( Micro Controller Unit) 43 may be included.

Hereinafter, each configuration will be described in detail.

Referring to FIG. 2, the switch lever 11 is coupled to the housing 17 and provided to operate various lamps provided in the vehicle. That is, the switch lever 11 is provided to turn on-off the head lamp, tail lamp, direction indication lamp provided in the vehicle.

The switch lever 11 may be provided in various shapes. Preferably, the switch lever 11 may be provided in a bar shape in consideration of user convenience.

The switch lever 11 is coupled to the housing 17 so as to be operated in an up and down direction based on a steering shaft. That is, when the switch lever 11 is operated in the upward direction, the indicator lamp in the right direction is turned on. When the switch lever 11 is operated in the downward direction, the indicator lamp in the left direction is turned on. When the switch lever 11 is located in the neutral direction, the direction indicating lamp is turned off.

Here, of course, when the switch lever 11 is operated in the upward direction, the indicator lamp in the left direction may be turned on.

The switch lever 11 operates the switch lever 11 in the up and down direction to turn on the direction indication lamp, and the steering of the vehicle after the vehicle rotates the steering wheel to rotate in the direction of the direction indication lamp. When the wheel is restored to its original position, it is provided to be positioned in the neutral direction by automatic cancellation from the cancellation signal output from the control unit 15.

The PCB board 13 is provided with various terminals and pins connected to the switch lever 11 and the steering wheel angle detecting unit 20 for the vehicle. The PCB board 13 is included in the controller 15 to control the can communication method. It may include a micro controller unit (MCU) 41 and the second micro controller unit (MCU) 43.

In this case, the first MCU (Micro Controller Unit) 41 and the second MCU (Micro Controller Unit) 43 is included in the control unit 15 and the low speed can (Low Speed Can) 42 communication scheme and A high speed can 44 is provided to control the communication scheme, respectively.

The PCB substrate 13 is accommodated in the housing 17, and detects phase changes of polarities (N pole and S pole) due to the rotation of the magnetic material. 28).

Here, the control unit 15 including the PCB substrate 13 is formed of the first magnetic body 25 and the second magnetic body 26 detected by the first and second sensing units 27 and 28. It may be provided to calculate the total angle of rotation of the steering wheel based on the phase change of the polarity (N pole, S pole) by the rotation.

The controller 15 calculates the total rotation angle of the steering wheel detected by the steering wheel angle detection unit 20 for the vehicle, and determines the rotational direction of the vehicle based on the calculated result, and then restores the original wheel after the rotation of the steering wheel. The cancel signal is output to enable automatic cancellation of the direction indicating switch provided in the vehicle multifunction switch 10.

The controller 15 may include the PCB substrate 13, and the first microcontroller unit 41 and the second microcontroller unit 43 provided in the PCB board 13 may be provided. ), It may be provided to perform the above-described rotation angle calculation of the steering wheel and the automatic cancellation signal output of the direction indicating switch, respectively.

Here, the first MCU (Micro Controller Unit) 41 and the second MCU (Micro Controller Unit) 43 is one integrated module in the PCB substrate, that is, one integrated MCU (Micro Controller Unit) 45 may be provided to enable direct mutual communication.

The housing 17 is coupled to the switch lever 11, and is provided to accommodate the vehicle steering wheel angle sensing unit 20 and the PCB substrate 13.

As shown in FIG. 2, the housing 17 may be provided in a separate type to be configured by a combination of the upper housing 17a and the lower housing 17b, and may also be integrally provided and integrally provided in the vehicle steering wheel angle sensing unit. 20 and the PCB substrate 13 may be accommodated.

In addition, the housing 17 may be provided in various shapes, and an opening may be formed so that the steering shaft penetrates and rotates in the center thereof. Here, the housing 17 may further include a groove through which a wire connecting the switch lever 11 and the PCB board 13 to pass therethrough.

The rotor 21 is provided to rotate in cooperation with the steering shaft in the housing 17.

The rotor 21 is fixed to the main gear 22 is coupled to the outer peripheral surface, the main gear 22 is also provided to rotate in conjunction with the rotation of the rotor 21. In this case, the rotor 21 may be provided integrally with the main gear 22.

The rotor 21 is coupled to the gear seating portion 31 in a state in which it is coupled with the main gear 22 and the first rotary gear 23 when the rotor 21 and the main gear 22 rotate. ) And the second rotary gear 24 are interlocked to rotate.

The rotor 21 may be provided to be directly or indirectly fixed to the steering shaft to interlock with the steering shaft. For example, it may be fixed by a direct coupling method such as pin coupling, or may be fixed by an indirect coupling method such as interference fitting. Alternatively, it may be fixedly coupled via a separate sleeve (not shown) or bushing (not shown).

Main gear 22 is fixed to the rotor 21 is provided to rotate in conjunction with the same rotation ratio when the rotor 21 is rotated.

The main gear 22 may be fixed to the rotor 21 in various ways. For example, it may be fitted to a fixing part provided on one side of the rotor 21, or may be fixed by an adhesive means such as a double-sided tape. Regardless of the coupling method, the main gear 22 is provided to rotate at the same rotational ratio as the rotor 21. In addition, the main gear 22 may be provided integrally with the rotor 21.

Here, the main gear 22 is seated on the gear seating portion 31 to rotate at the same rotation ratio when the rotor 21 rotates, the first rotary gear 23 and the second rotary gear 24 It is provided to rotate in conjunction.

In addition, the main gear 22 is coupled to the first rotary gear 23 and the second rotary gear 24 to be accommodated in the housing 17 in a state seated on the gear seat 31. do.

The first rotary gear 23 is rotated in combination with the main gear 22, it is provided to rotate in the reverse direction of the rotation direction of the main gear (22).

The first rotary gear 23 is coupled to the first magnetic body 25, and the polarity (N pole, S pole) of the first magnetic body 25 generated by the rotation of the first rotary gear 23. The first sensing unit 27 detects a phase change.

Here, the first rotary gear 23 may be integrally formed with the first magnetic body 25, that is, the first rotary gear 23 may be provided as a magnetic material.

The first rotary gear 23 may be coupled to the main gear 22 to be accommodated in the housing 17 in a state of being seated on the gear seating portion 31.

In addition, the first rotary gear 23 may have a different diameter than the second rotary gear 24, in this case, the rotation of the first magnetic material 25 coupled to the first rotary gear 23 Difference between the phase change of the polarity (N pole, S pole) and the phase change of the polarity (N pole, S pole) due to the rotation of the second magnetic material 26 coupled to the second rotary gear 24. By the control unit 15 is provided to calculate the rotation angle of the steering wheel.

That is, when the first and second rotary gears 23 and 24 rotate, they are respectively coupled to the first and second rotary gears 23 and 24 and rotated at the same rotation ratio. The phases of the polarities (N pole and S pole) of the first magnetic body 25 and the second magnetic body 26 are changed to generate a sinusoidal signal.

Here, when the diameters of the first rotary gear 23 and the second rotary gear 24 are different from each other, a sinusoidal signal generated by the first magnetic body 25 and the second magnetic body 26 are generated. The sinusoidal signals have different periods, and the first and second sensing units 27 and 28 detect the sinusoidal signals, respectively, based on the detected results. It is provided to calculate the rotation angle of the steering wheel.

The second rotary gear 24 is coupled to the main gear 22 to rotate in conjunction with, and is provided to rotate in the reverse direction of the rotation direction of the main gear 22.

The second rotary gear 24 is coupled to the second magnetic body 26, and the polarity (N pole, S pole) of the second magnetic body 26 generated by the rotation of the second rotary gear 24. The second sensing unit 28 detects a phase change.

Here, the second rotary gear 24 may be provided integrally with the second magnetic body 26, that is, the second rotary gear 24 may be provided as a magnetic material.

The second rotary gear 24 may be coupled to the main gear 22 to be accommodated in the housing 17 in a state of being seated on the gear seating portion 31.

The first magnetic body 25 is coupled to the first rotary gear 23 and rotated at the same rotation ratio, and the first sensing unit 27 is caused by the phase change of the polarity (N pole, S pole) by this rotation. Is provided to detect magnetic changes in the.

That is, the first sensing unit 27 detects a phase change of the polarity (N pole, S pole) of the magnetic body due to the rotation of the first magnetic body 25.

In addition, the first magnetic material 25 is coupled to the first rotary gear 23 and is provided to be seated on the gear seating portion 31 and accommodated in the housing 17.

Here, the first magnetic material 25 may be coupled to various parts of the first rotary gear 23, and preferably, the first magnetic body 25 may be detected by the first sensing unit 27 provided on the PCB substrate 13. It may be coupled to the lower portion of the first rotary gear 23 to facilitate.

Meanwhile, the first magnetic body 25 may be provided integrally with the first rotary gear 23.

The second magnetic body 26 is coupled to the second rotary gear 24 and rotates at the same rotation ratio, and the second sensing unit 28 is caused by the phase change of the polarity (N pole, S pole) by this rotation. Is provided to detect magnetic changes in the.

That is, the second sensing unit 28 detects a phase change of the polarity (N pole, S pole) of the magnetic body due to the rotation of the second magnetic body 26.

In addition, the second magnetic body 26 is coupled to the second rotary gear 24 and is provided to be seated on the gear seating portion 31 and accommodated in the housing 17.

Here, the second magnetic body 26 may be coupled to various parts of the second rotary gear 24, and preferably, the second magnetic body 26 may be detected by the second sensing unit 28 provided on the PCB substrate 13. It may be coupled to the lower portion of the second rotary gear 24 to facilitate.

On the other hand, the second magnetic body 26 may be provided integrally with the second rotary gear 24.

The first sensing unit 27 is provided on the PCB substrate 13 to be coupled to the first rotating gear 23 when the first rotating gear 23 is rotated to rotate the first magnetic body ( It is provided to detect the phase change of the polarity (N pole, S pole) by the rotation of 25).

Here, the control unit 15 is provided to calculate the total rotation angle of the steering wheel based on the detection result detected by the first detection unit 27.

The first sensing unit 27 may be provided in various types, and for example, may be provided as an anisotropic magnetic resistor (AMR) sensor or a giant magnetic resistor (GMR) sensor.

When the first detection unit 27 is provided with an anisotropic magnetic resistor (AMR) sensor, angle detection of 0.1 ° or more is possible, and when the first detection unit 27 is provided with a GMR sensor, more accurate angle detection is possible.

On the other hand, the first detection unit 27 is preferably installed spaced apart from the first magnetic material 25 to 20 millimeters (mm) or less from the first magnetic material 25 so as not to decrease the detection capability.

The second sensing unit 28 is provided on the PCB substrate 13 to be coupled to the second rotating gear 24 when the second rotating gear 24 is rotated to rotate the second magnetic body ( It is provided to detect the phase change of the polarity (N pole, S pole) by the rotation of 26.

Here, the control unit 15 is provided to calculate the total rotation angle of the steering wheel based on the detection result detected by the second detection unit 28.

The second sensing unit 28 may be provided in various kinds, for example, may be provided as an anisotropic magnetic resistor (AMR) sensor or a giant magnetic resistor (GMR) sensor.

When the second detection unit 28 is provided with an anisotropic magnetic resistor (AMR) sensor, angle detection of 0.1 ° or more is possible, and when the second detection unit 28 is provided with a GMR sensor, more accurate angle detection is possible.

On the other hand, the second detection unit 28 is preferably installed spaced apart from the second magnetic material 26 to 20 millimeters (mm) or less from the second magnetic material 26 so as not to degrade the detection ability.

As shown in FIG. 3, the gear seat 31 is provided to seat the main gear 22, the first rotating gear 23, and the second rotating gear 24. That is, a plurality of openings are formed in the gear seating portion 31 so that the main gear 22, the first rotating gear 23, and the second rotating gear 24 are formed through the plurality of openings. Each is seated. In this case, the rotor 21 coupled to the main gear 22 is coupled to the gear seating portion 31.

Here, the first rotary gear 23 and the second rotary gear 24 may be provided with a different diameter from each other, the second rotary gear 24 and the second rotary gear 24 is seated The plurality of openings are also provided with different diameters.

In addition, as shown in FIG. 3, the gear seat 31 is provided such that the first rotation gear 23 and the second rotation gear 24 are rotatably linked to the main gear 22. .

The gear seating part 31 is provided to be accommodated in the housing 17 in a state where the main gear 22, the first rotating gear 23, and the second rotating gear 24 are seated. The main gear 22, the present first rotary gear 23, and the present second rotary gear 24 are fixed to prevent flow.

The first micro controller unit (MCU) 41 is provided in the PCB substrate 13 and is provided to control the row can communication method.

In this case, the first MCU (Micro Controller Unit) 41 is included in the control unit 15, as shown in Figure 4, is provided in the vehicle Low Speed Can (Low Speed Can) 42 communication method It is provided to control a device to which a signal is transmitted, for example, the vehicle multifunction switch 10 and the power window 50.

The first microcontroller unit (MCU) 41 may be simultaneously included on the second microcontroller unit (MCU) 43 and the PCB substrate 13, and may be provided to enable mutual communication.

That is, by configuring the integrated module, separate equipment for interfacing the low speed can 42 communication method and the high speed can 44 communication method, for example, For example, bidirectional communication is possible without additionally configuring a gateway.

In addition, as shown in FIG. 5, direct communication with one integrated module, that is, one integrated microcontroller unit (MCU) 45 is possible, and since a signal movement path is reduced, transmission / reception time of a data signal Can be reduced.

The first MCU (Micro Controller Unit) 41 receives a signal of the operation result for the total rotation angle of the steering wheel from the second MCU (Micro Controller Unit) (43), by the above-described mutual communication method, The rotation direction of the vehicle is determined based on the total rotation angle of the steering wheel, and a cancellation signal is output to enable automatic cancellation of the direction indication switch provided in the multifunction switch 10 for the vehicle when the steering wheel is restored to its original position.

Thereby, the automatic cancellation of the direction indication switch is possible without the unit used when the direction indication switch is automatically canceled in the conventional manner, whereby the cost of parts can be reduced.

The second micro controller unit (MCU) 43 is provided in the PCB substrate 13 and is provided to control a high speed can 44 communication scheme.

In this case, as shown in FIG. 4, the second microcontroller unit (MCU) 43 is included in the control unit 15, and is provided in a vehicle to transmit a signal in a high can communication method, for example. In addition, the vehicle steering wheel angle detection unit 20 and the ESP (Electronic Stability Program) 60 is provided to control.

That is, the second MCU (Micro Controller Unit) 43 controls the vehicle steering wheel angle detection unit 20, the phase of the polarity (N pole, S pole) by the rotation of the magnetic material detected by the detection unit The total rotation angle of the steering wheel is calculated based on the change. Here, the second MCU (Micro Controller Unit) 43 is provided to transmit a signal of the operation result in a direct mutual communication method to the first MCU (Micro Controller Unit) 41 provided in the PCB substrate (13). .

First Example

Hereinafter, the operation of the vehicle multifunction switch 10 according to the present invention will be described in detail.

First, the vehicle multifunction switch 10 is operated in the vertical direction to light up the direction indicating lamp.

Next, the vehicle rotates the steering wheel to rotate in the direction of the present direction indicator lamp, and then rotates the steering wheel in the reverse direction to restore the vehicle to its original state. In this case, the steering shaft coupled to the steering wheel also rotates according to the rotation of the steering wheel of the vehicle, and the rotor 21 coupled to the steering shaft also rotates in conjunction.

Next, the first rotary gear 23 and the second rotary gear 24 are coupled to the rotor 21 and connected to and interlocked with the main gear 22 rotating at the same rotation ratio, the main gear 22 Rotate in the reverse direction.

Next, the first magnetic gear 25 and the second magnetic body 26, which are coupled to the first rotary gear 23 and the second rotary gear 24, respectively, are also seen in the first rotary gear 23 and the bone. It rotates at the same rotation ratio as the second rotary gear 24, and the phase change of the polarity (N pole, S pole) is caused by the rotation to output a sinusoidal signal.

In this case, the first rotary gear 23 may have a diameter different from that of the second rotary gear 24. In this case, the first magnetic body 25 of the first magnetic body 25 coupled to the first rotary gear 23 may be used. The phase change of the polarity (N pole, S pole) by rotation and the phase change of the polarity (N pole, S pole) by rotation of the second magnetic material 26 coupled to the second rotary gear 24 Differences, i.e. period differences, occur.

Next, a sinusoidal signal generated in the first magnetic material 25 and a sinusoidal signal generated in the second magnetic material 26 have different periods from each other, and the first sensing unit 27 and the second signal are different from each other. The detector 28 detects the sinusoidal signals, respectively.

Next, the controller 15 calculates a rotation angle of the steering wheel based on the detected result. In this case, the controller 15 includes the second micro controller unit (MCU) 43, and calculates the total rotation angle of the steering wheel in the second micro controller unit (MCU) 43.

Next, a second microcontroller unit (MCU) 43 transmits a signal of arithmetic result to the first microcontroller unit (MCU) 41 provided in the PCB board 13 in a direct intercommunication manner.

In this case, the second MCU (Micro Controller Unit) 43 is simultaneously included on the first MCU (Micro Controller Unit) 41 and the PCB substrate 13, it is possible to communicate with each other.

That is, the second micro controller unit (MCU) 43 and the first micro controller unit (MCU) 41 are provided on one PCB substrate 13 to communicate a low speed can 42. Bidirectional communication is possible without additional configuration of a separate device, for example, a gateway (Gate Way) for interfacing the method and the High Speed Can (44) communication method.

Next, the first MCU (Micro Controller Unit) 41 receives the signal of the operation result for the total rotation angle of the steering wheel from the second MCU (Micro Controller Unit) (43) by the above-described mutual communication method And, based on the total rotation angle of the steering wheel, determine the rotational direction of the vehicle and output a cancellation signal to enable automatic cancellation of the direction indication switch provided in the multi-function switch 10 for the vehicle when the steering wheel is restored to its original position. .

Next, the vehicle multifunction switch 10 is automatically canceled by the cancellation signal output from the first MCU.

2nd Example

The second embodiment is the same as the operation procedure of the first embodiment described above in comparison with the first embodiment, except that the first microcontroller unit 41 and the second MCU provided on the PCB substrate 13 are provided. There is a difference in that the microcontroller unit (MCU) 43 transmits a signal of arithmetic result in a direct intercommunication manner by an integrated module composed of one integrated microcontroller unit (MCU) 45.

As described above, the multi-function switch for a vehicle according to the present invention can recognize the entire rotation range of the steering wheel for the multi-turn as an absolute angle.

In addition, by providing the vehicle angle detection unit and the vehicle multi-function switch integrally, it is possible to automatically cancel based on the results detected by the vehicle steering wheel angle detection unit.

In addition, MCU (Micro Controller Unit) to control vehicle steering wheel angle detection unit and MCU (Micro Controller Unit) to control vehicle multi-function switch are provided on one PCB board to communicate with each other without additional equipment such as gateway. Do.

In addition, by providing the vehicle angle detection unit and the vehicle multifunction switch integrally, it is possible to automatically cancel the vehicle multifunction switch without a separate device, thereby reducing the cost of parts.

In addition, MCU (Micro Controller Unit) to control the steering wheel angle detection unit for vehicles and Micro Controller Unit (MCU) to control the vehicle's multifunction switch are provided on a single PCB board, so direct communication is possible without any additional equipment. Communication time can be reduced, and system failures caused by communication errors can be reduced.

Claims (13)

A switch lever for operating various lamps provided in the vehicle; A control unit connected to the switch lever and including a PCB board provided with various terminals and pins; A multifunction switch for a vehicle comprising: a housing accommodating the switch lever and a PCB substrate; A rotor that rotates in conjunction with a steering shaft that transmits a manipulation force to the wheel; A main gear fixed to the rotor and integrally rotating; A first rotary gear and a second rotary gear interlocked with the main gear; A first magnetic body and a second magnetic body fixed to the first rotation gear and the second rotation gear, respectively, and rotating at the same rotation ratio as the first rotation gear and the second rotation gear; A steering wheel angle sensing unit for a vehicle in the housing including a first sensing unit and a second sensing unit respectively sensing a phase change of polarity (N pole, S pole) by rotation of the first magnetic body and the second magnetic body; Multifunctional switch for a vehicle, characterized in that configured to be built. The method of claim 1, The vehicle multifunction switch further comprises a gear seat for seating the main gear, the first rotary gear and the second rotary gear. The method of claim 2, The housing is a multi-function switch for a vehicle, characterized in that provided in the upper housing and the lower housing. The method of claim 3, wherein The control unit calculates the total rotation angle of the steering wheel based on the phase change of the polarity (N pole, S pole) caused by the rotation of the first magnetic body and the second magnetic body detected by the first sensing unit and the second sensing unit. Multifunction switch for a vehicle, characterized in that the operation. The method of claim 4, wherein The first detection unit and the second detection unit multi-function switch for a vehicle, characterized in that provided as an AMR (Anisotropic Magnetic Resistor) sensor. The method of claim 4, wherein The first sensing unit and the second sensing unit is a multi-function switch for a vehicle, characterized in that provided with a GMR (Giant Magnetic Resistor) sensor. The method according to any one of claims 1 to 6, The first sensing unit and the second sensing unit is a multi-function switch for the vehicle, characterized in that installed from the first magnetic body and the second magnetic body spaced apart from more than 0 millimeters (mm) to 20 millimeters (mm) or less. The method according to any one of claims 4 to 6, The first rotary gear and the second rotary gear has a different radius from each other, the multi-function switch for a vehicle, characterized in that for interlocking with the main gear to generate a signal of a sinusoidal waveform different from each other during rotation. The method according to any one of claims 1 to 6, The first rotary gear or the second rotary gear is a multi-function vehicle switch, characterized in that provided with the first magnetic body or the second magnetic body integrally. The method according to any one of claims 4 to 6, The control unit outputs a cancel signal to determine the rotation direction of the vehicle based on the calculated total rotation angle of the steering wheel and to automatically cancel the direction indicating switch provided in the multifunction switch for the vehicle when the steering wheel is restored to its original state. Vehicle multifunction switch characterized in that. The method according to any one of claims 4 to 6, The PCB substrate includes a first microcontroller unit (MCU) for controlling a signal generated when the multifunction switch for a vehicle is operated by a low speed can 42 communication method, and the steering wheel angle detection unit for the vehicle. A multi-function switch for a vehicle, comprising: a second microcontroller unit (MCU) for controlling a signal generated by the high speed can communication method. The method of claim 11, The multi-function switch for a vehicle, characterized in that the first MCU (Micro Controller Unit) and the second MCU (Micro Controller Unit) is provided to enable mutual communication on the PCB substrate. The method of claim 12, The first MCU (Micro Controller Unit) and the second MCU (Micro Controller Unit) is a multi-function switch for a vehicle, characterized in that provided as one integrated microcontroller (MCU) on the PCB substrate.

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