KR20050004529A - Tire pressure value and Wheel speed value forwarding system - Google Patents

Tire pressure value and Wheel speed value forwarding system Download PDF

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Publication number
KR20050004529A
KR20050004529A KR1020030044744A KR20030044744A KR20050004529A KR 20050004529 A KR20050004529 A KR 20050004529A KR 1020030044744 A KR1020030044744 A KR 1020030044744A KR 20030044744 A KR20030044744 A KR 20030044744A KR 20050004529 A KR20050004529 A KR 20050004529A
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South Korea
Prior art keywords
signal
tire
wheel speed
air pressure
wheel
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KR1020030044744A
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Korean (ko)
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KR100527976B1 (en
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최광옥
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현대자동차주식회사
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Priority to KR10-2003-0044744A priority Critical patent/KR100527976B1/en
Publication of KR20050004529A publication Critical patent/KR20050004529A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0486—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
    • B60C23/0488—Movement sensor, e.g. for sensing angular speed, acceleration or centripetal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
    • B60C23/0433—Radio signals
    • B60C23/0435—Vehicle body mounted circuits, e.g. transceiver or antenna fixed to central console, door, roof, mirror or fender
    • B60C23/0438—Vehicle body mounted circuits, e.g. transceiver or antenna fixed to central console, door, roof, mirror or fender comprising signal transmission means, e.g. for a bidirectional communication with a corresponding wheel mounted receiver
    • B60C23/0442—Vehicle body mounted circuits, e.g. transceiver or antenna fixed to central console, door, roof, mirror or fender comprising signal transmission means, e.g. for a bidirectional communication with a corresponding wheel mounted receiver the transmitted signal comprises further information, e.g. instruction codes, sensor characteristics or identification data

Abstract

PURPOSE: A tire air pressure and wheel speed transmission device is provided to cut down expenses and manpower caused by existing overlapped wires by processing a signal of a tire air pressure sensor and a signal of a wheel speed sensor via a single wire. CONSTITUTION: A tire air pressure and wheel speed transmission device comprises a tire pressure sensor(100) attached to a side of a tire to sense the air pressure of the tire and to output a tire air pressure signal; a wheel speed sensor(200) connected to the tire pressure sensor in series to output a combined signal formed by combining the tire air pressure signal with a wheel speed signal sensing the rotational speed of a tone wheel rotating together with a wheel(10); and a signal divide part(300) receiving the combined signal and dividing the combined signal into the tire air pressure signal and the wheel speed signal.

Description

타이어공기압력 및 차륜속도 전달장치{Tire pressure value and Wheel speed value forwarding system}Tire pressure and wheel speed value forwarding system

본 발명은 차량의 바퀴와 관련된 주행정보를 감지하는 센서들의 구성과 배선 및 그 처리방법에 관한 것이다.The present invention relates to a configuration, wiring, and processing method of sensors for detecting driving information related to a wheel of a vehicle.

차량의 바퀴는 실질적으로 지면과 접하며 회전하는 부분으로, 차량의 운행에 있어서 매우 중요한 역할을 수행하고 있다. 따라서 이러한 바퀴와 관련된 정보들을 감지하여 ECU로 전송하는 센서시스템의 사용이 보편화되어 있다.The wheel of the vehicle is a part which rotates while actually contacting the ground, and plays a very important role in the operation of the vehicle. Therefore, the use of a sensor system that detects the information associated with the wheel and transmits it to the ECU is common.

ABS브레이크 시스템의 경우, 바퀴의 회전여부를 감지해서 각 바퀴의 제동력을 조절하기 때문에 각각의 바퀴의 회전속도 정보가 필수적이다. 이러한 바퀴의 회전속도는 휠스피드센서에 의해서 감지되어 ABS브레이크 시스템의 ECU로 전달된다. 휠스피드센서는 차륜의 회전에 따라 톤휠이 회전하면서 마그네트로부터 나오는 자속이 변화하여 코일에 발생하는 유도기전력을 이용한다. 여기서 발생되는 것은 교류전압으로, 톤휠의 회전수에 비례하여 주파수가 변화하기 때문에 이것에 의해 차륜의 속도를 검출하게 되는 것이다.In the case of ABS brake system, the rotation speed information of each wheel is essential because it controls the braking force of each wheel by detecting the rotation of the wheel. The rotation speed of these wheels is detected by the wheel speed sensor and transmitted to the ECU of the ABS brake system. The wheel speed sensor uses the induced electromotive force generated in the coil by changing the magnetic flux from the magnet as the tone wheel rotates as the wheel rotates. What is generated here is an alternating voltage, and the frequency changes in proportion to the number of revolutions of the tone wheel, thereby detecting the speed of the wheel.

이와 함께, 차륜과 관련된 정보로는 타이어의 공기압력이 있다. 타이어의 공기압력은 안전운행에 있어서 매우 중요한 정보로써, 공기압이 너무 낮을 경우 운전자에게 이를 알려 조치를 취하도록 하기 위한 것이다. 타이어압력센서는 압력을 받으면 그에 따른 전압을 출력하는 피에조레지스터를 이용한다. 이러한 톤휠과 마그네트를 이용한 속도센서나 피에조소자를 이용한 압력센서는 공지기술이므로 상세한 설명은 생략한다.Along with this, the information related to the wheels is the tire air pressure. The tire air pressure is very important information for safe driving, and it is to inform the driver when the air pressure is too low to take action. The tire pressure sensor uses a piezo register that outputs a voltage according to pressure. Such a speed sensor using a tone wheel and a magnet or a pressure sensor using a piezoelectric element are well known technologies, and thus detailed descriptions thereof will be omitted.

도 1은 종래의 타이어공기압력 및 차륜속도 전달장치를 나타낸 구성도이다.1 is a block diagram showing a conventional tire air pressure and wheel speed transmission device.

도시된 바와 같이, 각각의 차륜(10)에 모두 타이어압력센서(100)와 휠스피드센서(200)가 구비되어 각각의 차륜에서 검출되는 신호를 각각의 배선을 거쳐서 ECU(500)로 전달되도록 구성되어 있다.As shown, each of the wheels 10 is provided with a tire pressure sensor 100 and a wheel speed sensor 200 are configured to deliver a signal detected at each wheel to the ECU 500 via the respective wirings It is.

앞서 설명한 바와 같이, 휠스피드센서(200)는 톤휠의 회전을 검출하는 것으로 차체에 부착하여 ECU(500)와 유선으로 직접 연결할 수 있지만, 타이어압력센서(100)는 차륜(10)의 타이어에 직접 부착되어야 하므로 ECU(500)와 직접 유선으로 연결되지 못하고, 도시된 바와 같이 타이어압력센서(100)의 신호를 송신기(110)를 통해서 무선으로 전송하고, 차체에 상기 무선신호를 수신할 수 있는 수신기(120)를 부착하여, 상기 수신기(120)를 ECU(500)와 연결함으로써 타이어압력센서(100)에서 검출한 정보를 ECU(500)로 전달하는 구조를 가지고 있었다.As described above, the wheel speed sensor 200 is attached to the vehicle body by detecting the rotation of the tone wheel can be directly connected to the ECU 500 by wire, the tire pressure sensor 100 is directly connected to the tire of the wheel (10) Since it should be attached to the ECU 500 can not be directly connected to the wire, as shown in the wireless transmission of the signal of the tire pressure sensor 100 through the transmitter 110, a receiver that can receive the radio signal to the vehicle body By attaching 120, the receiver 120 is connected to the ECU 500 to transfer information detected by the tire pressure sensor 100 to the ECU 500.

따라서, 각각의 차륜에서 검출된 타이어압력신호와 차륜속도신호가 별도의 배선을 통해서 거의 유사한 경로를 거쳐서 ECU(500)에 전달되고 있는 실정이다.Accordingly, the tire pressure signal and the wheel speed signal detected at each wheel are transmitted to the ECU 500 via a substantially similar path through a separate wiring.

또한, 타이어압력센서(100)에서 검출된 신호는 송신기(110)와 수신기(120)의 무선통신을 거쳐야하기 때문에 그에 따른 여러가지 제약조건이 있고, 강전계 지역에서는 전자기파의 영향을 받게되며, 신호간섭의 요인이 많은 문제점이 있었다.In addition, since the signal detected by the tire pressure sensor 100 has to go through the wireless communication between the transmitter 110 and the receiver 120, there are various constraints according to it, and in the strong electric field region, the electromagnetic wave is affected, and the signal interference There were many issues with the factor.

그러므로, 본 발명은 타이어의 공기압력과 차륜의 속도를 측정하여 ECU로 전달하기 위한 장치에 있어서, 타이어의 공기압력을 측정하는 타이어공기압력센서를 유선으로 ECU까지 직접 연결함으로써 무선통신을 이용하던 종래기술의 한계를 개선한 타이어공기압력 및 차륜속도 전달장치를 제공함을 그 목적으로 한다.Therefore, the present invention is a device for measuring the air pressure of the tire and the speed of the wheel to deliver to the ECU, the prior art using wireless communication by directly connecting the tire air pressure sensor for measuring the air pressure of the tire to the ECU by wire It is an object of the present invention to provide a tire air pressure and wheel speed transmission device that improves the technical limitations.

본 발명의 또 다른 목적은 타이어공기압력센서의 신호와 휠스피드센서의 신호를 단일 배선으로 처리함으로써, 종래의 중복배선으로 인한 비용과 노동력을 절감하는데 있다.Still another object of the present invention is to reduce the cost and labor of the conventional redundant wiring by processing the signal of the tire air pressure sensor and the signal of the wheel speed sensor in a single wiring.

도 1은 종래의 타이어공기압력 및 차륜속도 전달장치를 나타낸 구성도,1 is a configuration diagram showing a conventional tire air pressure and wheel speed transmission device,

도 2는 본 발명에 따른 타이어공기압력 및 차륜속도 전달장치의 회로도,2 is a circuit diagram of a tire air pressure and wheel speed transmission device according to the present invention,

도 3은 본 발명에 따른 타이어공기압력 및 차륜속도 전달장치의 타이어압력센서와 휠스피드센서의 연결관계를 나타낸 구성도,3 is a block diagram showing the connection relationship between the tire pressure sensor and the wheel speed sensor of the tire air pressure and wheel speed transmission apparatus according to the present invention,

도 4는 본 발명에 타이어공기압력 및 차륜속도 전달장치의 신호분리부의 구성을 나타낸 블럭도임.Figure 4 is a block diagram showing the configuration of the signal separation unit of the tire air pressure and wheel speed transmission device in the present invention.

< 도면의 주요부분에 관한 부호의 설명 ><Description of the code | symbol about the principal part of drawing>

10 : 차륜 15 : 차축10: wheel 15: axle

100 : 타이어압력센서 110 : 송신기100: tire pressure sensor 110: transmitter

120 : 수신기 150 : 외곽베어링120: receiver 150: outer bearing

200 : 휠스피드센서 250 : 구형베어링200: wheel speed sensor 250: spherical bearing

300 : 신호분리부 310 : A/D컨버터300: signal separation unit 310: A / D converter

320 : 평균기 330 : 감산기320: average 330: subtractor

500 : ECU500: ECU

이러한 목적을 달성하기 위한 본 발명은 타이어의 공기압력과 차륜의 스피드를 측정하여 전달하기 위한 장치에 있어서, 상기 타이어의 일측에 부착되어 상기 타이어의 공기압을 센싱하여 타이어공기압력신호를 출력하는 타이어압력센서; 상기 타이어압력센서와 직렬 연결되어 상기 차륜과 함께 회전하는 톤휠의 회전속도를 센싱한 차륜속도신호를 상기 타이어공기압력신호와 결합시켜 결합신호를 출력하는 휠스피드센서; 및 상기 결합신호를 인가받아 이를 타이어공기압력신호와 차륜속도신호로 분리하는 신호분리부를 구비함으로써 달성된다.In order to achieve the above object, the present invention provides a device for measuring and delivering a tire air pressure and a wheel speed, wherein the tire pressure is attached to one side of the tire to sense a tire air pressure to output a tire air pressure signal. sensor; A wheel speed sensor coupled to the tire pressure sensor in series and outputting a combined signal by combining a wheel speed signal sensing a rotation speed of a tone wheel rotating together with the wheel and the tire air pressure signal; And a signal separation unit for receiving the combined signal and separating the combined signal into a tire air pressure signal and a wheel speed signal.

상기 휠스피드센서는 차축의 중심에 고정되어 있는 구형베어링에 전기적으로 연결되고, 상기 타이어압력센서는 차륜에 고정되어 상기 구형베어링과 맞물려 회전하는 외곽베어링에 전기적으로 연결되며,The wheel speed sensor is electrically connected to a spherical bearing fixed to the center of the axle, the tire pressure sensor is electrically connected to an outer bearing that is fixed to the wheel to rotate in engagement with the spherical bearing,

상기 신호분리부는 합성신호를 A/D변환하는 A/D 컨버터; 상기 A/D 변환된 신호의 평균을 구하여 상기 타이어공기압력신호를 분리하는 평균기; 및 상기 합성신호에서 상기 평균기의 출력신호를 감산하여 상기 차륜속도신호를 분리하는 감산기로 이루어진다.The signal separation unit A / D converter for converting the composite signal A / D; An averager for obtaining the average of the A / D converted signals to separate the tire air pressure signal; And a subtractor for separating the wheel speed signal by subtracting the output signal of the averager from the synthesized signal.

이하 본 발명의 바람직한 실시예를 첨부된 도면들에 의거하여 상세하게 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 타이어공기압력 및 차륜속도 전달장치의 회로도이다.2 is a circuit diagram of a tire air pressure and wheel speed transmission device according to the present invention.

도시된 바와 같이, 본 발명은 타이어의 일측에 부착되어 상기 타이어의 공기압을 센싱하여 공기압력신호를 직류전압값으로 출력하는 타이어압력센서(100)와 상기 타이어압력센서(100)와 직렬연결되어 교류전압값인 차륜속도신호를 상기 타이어공기압력신호와 결합시킨 결합신호를 출력하는 휠스피드센서(200)를 직렬로 연결하여 ECU(500)의 신호분리부(300)로 전달하고 있다. 상기 신호분리부(300)는 ECU(500)에 내장되어 있는 것으로 표현되었으나, ECU(500)와 별도로 형성할 수도 있다.As shown, the present invention is connected to the tire pressure sensor 100 and the tire pressure sensor 100 is connected to one side of the tire and senses the air pressure of the tire and outputs an air pressure signal as a DC voltage value AC The wheel speed sensor 200 for outputting a combined signal combining the wheel speed signal, which is a voltage value, with the tire air pressure signal, is connected in series and transmitted to the signal separation unit 300 of the ECU 500. The signal separator 300 is represented as being embedded in the ECU 500, but may be formed separately from the ECU 500.

이러한 본 발명은 타이어압력센서(100)가 휠스피드센서(200)와 직렬로 연결되어 있어서 동일한 배선을 거쳐 신호분리부(300)로 전달되므로, 종래와 같이 타이어압력센서(100)의 신호를 무선 송수신하기 위한 송수신기가 필요치 않으며, 또한 비슷한 경로를 가지는 타이어압력센서에서 센싱한 신호를 전달하기 위한 배선과, 휠스피드센서에서 센싱한 신호를 전달하기 위한 배선이 단일배선으로 통합된다.In the present invention, since the tire pressure sensor 100 is connected in series with the wheel speed sensor 200 and transmitted to the signal separation unit 300 through the same wiring, the signal of the tire pressure sensor 100 is wirelessly transmitted as in the related art. There is no need for a transceiver to transmit and receive, and the wiring for transmitting the signal sensed by the tire pressure sensor having a similar path and the wiring for transmitting the signal sensed by the wheel speed sensor are integrated into a single wiring.

앞서 종래기술에서 설명한 바와 같이 타이어압력센서(100)의 신호는 직류전압을 가지며, 휠스피드센서(200)의 신호는 교류전압을 가지므로 회로도 상에서, 각각 직류전원과 교류전원으로 표시하였다.As described in the prior art, the signal of the tire pressure sensor 100 has a DC voltage, and the signal of the wheel speed sensor 200 has an AC voltage.

도 3은 본 발명에 따른 타이어공기압력 및 차륜속도 전달장치의 타이어압력센서와 휠스피드센서의 연결관계를 나타낸 구성도이다.Figure 3 is a block diagram showing the connection relationship between the tire pressure sensor and the wheel speed sensor of the tire air pressure and wheel speed transmission apparatus according to the present invention.

차륜(10)은 차축(15)을 중심으로 회전하는 것이므로, 차륜(10)에 부착되는타이어압력센서(100)를 차축의 중심에 고정되는 구형베어링(250)과 차륜에 고정되는 외곽베어링(150)을 통하여 차체와 전기적으로 연결하고 있다.Since the wheel 10 rotates about the axle 15, the spherical bearing 250 is fixed to the tire pressure sensor 100 attached to the wheel 10 at the center of the axle and the outer bearing 150 is fixed to the wheel. Is electrically connected to the vehicle body.

도시된 바와 같이 타이어압력센서(100)는 타이어의 공기압을 측정할 수 있도록 차륜(10)에 부착되어 있으며, 상기 타이어압력센서(100)는 전기적으로 외곽베어링(150)과 연결되어 있다. 상기 외곽베어링(150)은 차축(15)에 고정되어 있는 구형베어링(250)과 접촉하고 있으므로 차륜(10)이 회전하여도 외곽베어링(150)과 구형베어링(250)은 지속적으로 접촉을 유지하게 되므로, 전기적으로 타이어압력센서(100)와 구형베이링(250)이 연결된다. 상기 구형베어링(250)은 전기적으로 휠스피드센서(200)와 연결되어 있고, 상기 휠스피드센서(200)는 도 2에서 설명한 바와 같이 신호분리부(300)와 연결되어 있어서, 타이어압력센서(100)에서 출력되는 직류전압(타이어압력신호)과 휠스피드센서(200)에서 출력되는 교류전압값(차륜속도신호)이 합성된 합성전압값(합성신호)이 ECU의 신호처리부(300)로 전달되는 것이다.As shown, the tire pressure sensor 100 is attached to the wheel 10 to measure the air pressure of the tire, the tire pressure sensor 100 is electrically connected to the outer bearing 150. Since the outer bearing 150 is in contact with the spherical bearing 250 fixed to the axle 15, the outer bearing 150 and the spherical bearing 250 continuously maintain contact even when the wheel 10 rotates. Therefore, the tire pressure sensor 100 and the spherical bearing 250 is electrically connected. The spherical bearing 250 is electrically connected to the wheel speed sensor 200, the wheel speed sensor 200 is connected to the signal separation unit 300 as described in Figure 2, the tire pressure sensor 100 The synthesized voltage value (synthesis signal) obtained by combining the DC voltage (tire pressure signal) output from the wheel and the AC voltage value (wheel speed signal) output from the wheel speed sensor 200 is transmitted to the signal processing unit 300 of the ECU. will be.

도 4는 본 발명에 타이어공기압력 및 차륜속도 전달장치의 신호분리부의 구성을 나타낸 블럭도이다.Figure 4 is a block diagram showing the configuration of the signal separation unit of the tire air pressure and wheel speed transmission device in the present invention.

타이어압력신호와 차륜속도신호가 합성된 합성신호는 신호분리부(300)에서 분리되어 ECU의 필요부로 전달되는 데, 상기 신호분리부(300)는 도시된 바와 같이, 합성신호를 A/D변환하는 A/D 컨버터(310)와, 상기 A/D 변환된 신호의 평균을 구하여 상기 타이어공기압력신호를 분리하는 평균기(320), 및 상기 합성신호에서 상기 평균기의 출력신호를 감산하여 상기 차륜속도신호를 분리하는 감산기(330)로 이루어진다.The synthesized signal in which the tire pressure signal and the wheel speed signal are synthesized is separated from the signal separator 300 and transferred to the required part of the ECU. The signal separator 300 converts the synthesized signal into an A / D conversion as shown. An average of the A / D converter 310, an A / D-converted signal, and an average unit 320 that separates the tire air pressure signal, and subtracts an output signal of the average unit from the synthesized signal. Subtractor 330 for separating the wheel speed signal.

합성신호는 교류인 차륜속도신호(V1)가 직류인 타이어공기압력신호(V2)만큼 평행 이동한 형태를 가지며, 이 신호의 평균을 구하게 되면 교류의 평균은 0이므로 타이어공기압력신호(V2)가 구해지고, 합성신호에서 타이어공기압력신호(V2)를 감산하면 원래의 차륜속도신호(V1)가 구해지게 된다.The composite signal has a form in which the wheel speed signal V1, which is AC, is moved in parallel with the tire air pressure signal V2, which is DC, and when the average of these signals is obtained, the average of AC is 0, so the tire air pressure signal V2 is If the tire air pressure signal V2 is subtracted from the synthesized signal, the original wheel speed signal V1 is obtained.

이와같이, 본 발명은 타이어압력센서를 유선으로 휠스피드센서와 연결하여 합성신호를 신호분리기로 전달한 후, 신호분리기에서 이를 각각의 신호로 분리하여 ECU로 전달함으로써 중복배선을 피할수 있으며, 무선통신이 가지는 문제점들을 해결한다.As described above, the present invention connects the tire pressure sensor to the wheel speed sensor by wire and transmits the synthesized signal to the signal separator, and then separates the signals into individual signals in the signal separator and transmits them to the ECU, thereby avoiding redundant wiring. Solves problems.

이상 설명한 바와 같이, 본 발명은 타이어압력센서를 구형베어링과 외곽베어링을 통해서 차체측에 설치되는 휠스피드센서와 직접연결하고, 합성된 신호를 ECU로 전달되도록 함으로써, 배선량을 감소시킬 수 있는 효과를 가져온다.As described above, the present invention has the effect of reducing the amount of wiring by directly connecting the tire pressure sensor to the wheel speed sensor installed on the vehicle body through the spherical and outer bearings, and to transmit the synthesized signal to the ECU Bring.

또한, 종래에 무선통신을 거치던 타이어압력센서의 신호를 직접유선으로 전달함으로써 무선통신으로 인해서 발생하는 강전계지역에서의 문제점 및 신호간섭등의 문제점을 해결하는 효과를 가져온다.In addition, by directly transmitting the signal of the tire pressure sensor that went through the wireless communication in a direct wired line has the effect of solving problems such as problems in the strong electric field and signal interference caused by wireless communication.

Claims (3)

타이어의 공기압력과 차륜의 스피드를 측정하여 전달하기 위한 장치에 있어서,In the device for measuring and transmitting the tire air pressure and the wheel speed, 상기 타이어의 일측에 부착되어 상기 타이어의 공기압을 센싱하여 타이어공기압력신호를 출력하는 타이어압력센서;A tire pressure sensor attached to one side of the tire to sense an air pressure of the tire to output a tire air pressure signal; 상기 타이어압력센서와 직렬연결되어 상기 차륜과 함께 회전하는 톤휠의 회전속도를 센싱한 차륜속도신호를 상기 타이어공기압력신호와 결합시킨 결합신호를 출력하는 휠스피드센서; 및A wheel speed sensor connected in series with the tire pressure sensor and outputting a combined signal combining the wheel speed signal sensing the rotation speed of the tone wheel rotating together with the wheel and the tire air pressure signal; And 상기 결합신호를 인가받아 이를 타이어공기압력신호와 차륜속도신호로 분리하는 신호분리부를 구비하는 것을 특징으로 하는 타이어공기압력 및 차륜속도 전달장치Tire air pressure and wheel speed transmission device characterized in that it comprises a signal separation unit for receiving the combined signal to separate the tire air pressure signal and the wheel speed signal 제 1항에 있어서,The method of claim 1, 상기 휠스피드센서는 차축의 중심에 고정되어 있는 구형베어링에 전기적으로 연결되고,The wheel speed sensor is electrically connected to a spherical bearing fixed to the center of the axle, 상기 타이어압력센서는 차륜에 고정되어 상기 구형베어링과 맞물려 회전하는 외곽베어링에 전기적으로 연결된 것을 특징으로 하는 타이어공기압력 및 차륜속도 전달장치.The tire pressure sensor is fixed to the wheel tire air pressure and wheel speed transmission device, characterized in that electrically connected to the outer bearing rotates in engagement with the spherical bearing. 제 1항에 있어서,The method of claim 1, 상기 신호분리부는 합성신호를 A/D변환하는 A/D 컨버터;The signal separation unit A / D converter for converting the composite signal A / D; 상기 A/D 변환된 신호의 평균을 구하여 상기 타이어공기압력신호를 분리하는 평균기; 및An averager for obtaining the average of the A / D converted signals to separate the tire air pressure signal; And 상기 합성신호에서 상기 평균기의 출력신호를 감산하여 상기 차륜속도신호를 분리하는 감산기;를 구비하는 것을 특징으로 하는 타이어공기압력 및 차륜속도 전달장치.And a subtractor for separating the wheel speed signal by subtracting the output signal of the averager from the synthesized signal.
KR10-2003-0044744A 2003-07-03 2003-07-03 Tire pressure value and Wheel speed value forwarding system KR100527976B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100780536B1 (en) * 2007-03-16 2007-11-30 주식회사 일진글로벌 Tire pressure monitoring device
KR101144667B1 (en) * 2006-10-23 2012-05-25 주식회사 만도 Electric control brake system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101144667B1 (en) * 2006-10-23 2012-05-25 주식회사 만도 Electric control brake system
KR100780536B1 (en) * 2007-03-16 2007-11-30 주식회사 일진글로벌 Tire pressure monitoring device

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