KR20110050137A - Tpms sesor for car tire - Google Patents

Tpms sesor for car tire Download PDF

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Publication number
KR20110050137A
KR20110050137A KR1020090106988A KR20090106988A KR20110050137A KR 20110050137 A KR20110050137 A KR 20110050137A KR 1020090106988 A KR1020090106988 A KR 1020090106988A KR 20090106988 A KR20090106988 A KR 20090106988A KR 20110050137 A KR20110050137 A KR 20110050137A
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KR
South Korea
Prior art keywords
air
pressure
tire
pressure plate
air inlet
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KR1020090106988A
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Korean (ko)
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KR101104339B1 (en
Inventor
박동현
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한국타이어 주식회사
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Priority to KR1020090106988A priority Critical patent/KR101104339B1/en
Publication of KR20110050137A publication Critical patent/KR20110050137A/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
    • 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
    • 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
    • B60C23/0447—Wheel or tyre mounted circuits
    • B60C23/045—Means for detecting electromagnetic field changes being not part of the signal transmission per se, e.g. strength, direction, propagation or masking
    • 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
    • B60C29/00—Arrangements of tyre-inflating valves to tyres or rims; Accessories for tyre-inflating valves, not otherwise provided for
    • B60C29/02—Connection to rims
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L17/00—Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
    • B23B2228/16—Shape memory alloys

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

PURPOSE: A Tire Pressure Monitoring System sensor for a vehicle timer is provided to improve wheel balance by lightening the weight of the sensor and to easily confirm the air pressure state of a tire. CONSTITUTION: A TPMS sensor for a vehicle timer comprises an air inlet body(110), an air supply valve(150), a pressure plate(130), a spring(160), and a shape memory alloy unit(140). The air inlet body is installed in a wheel(120) and sends air pressure to the inside a tire. The air supply valve is installed inside the air inlet body. The pressure plate transfers the pressure of air flowing to an air inlet(170) to a shape memory alloy. The spring supports the pressure plate in the opposite direction of the flowing air. One end of the shape memory alloy unit is fixed to the air supply valve, and the other end is fixed to the pressure plate.

Description

자동차 타이어용 티피엠에스 센서{TPMS SESOR FOR CAR TIRE}TPM S sensor for car tire {TPMS SESOR FOR CAR TIRE}

본 발명은 자동차 타이어용 티피엠에스 센서에 관한 것으로, 더욱 상세하게는, 자동차 타이어의 내부로 유입되는 공기압의 크기를 정확히 측정할 수 있도록 개선된 구조를 갖는 티피엠에스 센서에 관한 것이다.The present invention relates to a TPM sensor for an automobile tire, and more particularly, to a TPM sensor having an improved structure to accurately measure the magnitude of the air pressure flowing into the interior of a car tire.

일반적으로, 차량에 장착된 타이어 내부의 공기압과 온도는 타이어의 운행중 파손과 관련된 요소로 많이 인용되고 있다. 이와 관련하여 티피엠에스(Tire Pressure Monitoring System, TPMS) 센서를 차량의 타이어에 장착하게 되는데, 상기 티피엠에스는 타이어의 파손을 방지하고, 적정한 공기압의 유지를 통한 차량의 안전 운행 및 경제적 운행이 가능하도록 차량의 휠에 부착하거나 휠의 속도등을 측정하여 타이어의 공기압을 감지해 타이어의 공기압이 특정 압력 이하로 낮아지면 운전자에게 사전에 경고를 하여 미리 타이어를 정비하거나 안전하게 주행할 수 있도록 도움을 준다.In general, the air pressure and temperature inside a tire mounted on a vehicle are widely cited as a factor related to damage during operation of the tire. In connection with this, a Tire Pressure Monitoring System (TPMS) sensor is mounted on the tire of the vehicle, and the TPM prevents the tire from being damaged and enables safe driving and economical operation of the vehicle by maintaining proper air pressure. By attaching to the wheel of the vehicle or measuring the speed of the wheel to detect the tire pressure, if the tire pressure drops below a certain pressure, the driver is warned in advance to help maintain the tire or drive safely.

이러한 티피엠에스는 용도에 따라 직접식과 간접식으로 구분되는데, 이중에서 직접식 티피엠에스는 차량의 휠에 장착되어 내부 온도와 압력 등을 직접 측정하여 송신하는 티피엠에스 센서와, 각 휠에 장착된 티피엠에스 센서들로부터 전송된 신호를 입력 받아 처리하여 계기판에 디스플레이를 할 수 있도록 하는 티피엠에스 컨트롤러를 포함하여 구성되는 것일 일반적이다.These TPMs are classified into direct and indirect types according to the use. Among them, the TPMs are mounted on the wheels of the vehicle, and the TPM sensors which directly measure and transmit internal temperature and pressure, and TIPs mounted on each wheel. It is generally configured to include a TPM controller to receive and process the signal transmitted from the MS sensors to display on the instrument panel.

여기서, 종래의 티피엠에스 센서는 휠에 설치되어 타이어 내부의 공기압이나. 온도 등의 정보를 측정하여 티피엠에스 컨트롤러로 송신하도록 되어있어 간접식 티피엠에스에 비하여 정확한 측정이 가능한 장점이 있지만, 센서와 무선 송신부, 배터리 등과 같이 다양한 구성 요소로 인한 복잡한 구조 때문에 가격이 비싸며, 내구성이 취약하고, 중량이 무거워 휠벨런스 측면에서 불리한 문제점을 안고 있는 단점이 있었다.Here, the conventional TPM sensor is installed on the wheel or the air pressure inside the tire. Although it measures the information such as temperature and transmits it to the TPM controller, it has the advantage of accurate measurement compared to the indirect TPM, but it is expensive and durable due to the complicated structure of various components such as sensors, wireless transmitters and batteries. This weak, heavy weight had a disadvantage in terms of wheel balance disadvantages.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위한 것으로, 구조적으로 간단하면서도 전지 등의 전력 공급원과 송신부 등이 없어 중량이 가볍고 휠밸런스 측면에 유리하면서도 타이어 내부의 공기압 상태를 송출 할 수 있도록 한 티피엠에스 센서를 제공하는 것을 목적으로 한다.The present invention is to solve the conventional problems as described above, the structure is simple, but there is no power supply and transmission unit, such as a battery, the weight is light and advantageous to the side of the wheel balance, but also to send the air pressure state inside the tire It is an object to provide an MS sensor.

상기한 바와 같은 본 발명의 목적을 달성하고, 후술하는 본 발명의 특징적인 기능을 수행하기 위한, 본 발명의 특징적 구성은 다음과 같다.In order to achieve the object of the present invention as described above, and to perform the characteristic functions of the present invention described below, the characteristic configuration of the present invention is as follows.

본 발명의 일 태양에 따르면, 휠(120)에 장착되어 타이어 내부로 공기압을 유입하는 공기 유입구 몸체(110), 상기 공기 유입구 몸체 내부에 장착된 공기공급 밸브(150), 상기 공기 유입구 몸체 내에서 공기 유입구(170)로 유입되는 공기의 압력을 장착된 자기 형상기억합금(140)에 전달하는 압력판(130), 상기 공기압 유입구(170)로 유입되는 공기 압력의 작용 방향과 반대 방향으로 상기 압력판(130)을 지지하는 스프링(160), 및 상기 공기공급 밸브(150)에 일단이 고정되고 상기 압력판(130)에 타단이 고정되어 자기장을 발생시키는 자기 형상기억합금 수단(140)을 포함하는 자동차 타이어용 티피엠에스 센서가 제공된다.According to an aspect of the present invention, the air inlet body 110 mounted on the wheel 120 to introduce air pressure into the tire, the air supply valve 150 mounted inside the air inlet body, the air inlet body Pressure plate 130 for transmitting the pressure of the air flowing into the air inlet 170 to the mounted magnetic shape memory alloy 140, the pressure plate in the direction opposite to the action direction of the air pressure flowing into the air pressure inlet (170) ( A vehicle tire including a spring 160 supporting the 130 and a magnetic shape memory alloy 140 having one end fixed to the air supply valve 150 and the other end fixed to the pressure plate 130 to generate a magnetic field. There is provided a TPM sensor.

이때, 상기 자기 형상기억합금 수단은, 상기 압력판(130)의 직선 운동시 압축 또는 인장된 변형량에 대하여 비례하여 자기장을 발생시킴으로써, 타이어 내부의 공기압 크기를 판단하는데 용이하다.In this case, the magnetic shape memory alloy means, by generating a magnetic field in proportion to the amount of compression or tension in the linear movement of the pressure plate 130, it is easy to determine the size of the air pressure inside the tire.

이상의 설명에 의한 본 발명의 티피엠에스 센서는 간단한 구조로 이뤄지며, 전력 공급원이 필요 없어 전지 등과 같은 전력 공급원을 장착할 필요가 없는 장점을 가지며, 압력 정보의 송신을 위한 송신부가 따로 필요 없어 중량이 가벼워 휠벨런스 측면에 유리하며, 타이어 내부의 공기압의 크기를 손쉽게 판단하는 효과가 있다.The TPM sensor of the present invention according to the above description is made of a simple structure, has the advantage of not needing to install a power supply such as a battery, no power supply source, and the weight is light because no separate transmitter for transmitting pressure information It is advantageous to the wheel balance side, and the effect of easily determining the size of the air pressure inside the tire.

후술하는 본 발명에 대한 상세한 설명은, 본 발명이 실시될 수 있는 특정 실시 예를 예시로서 도시하는 첨부 도면을 참조한다. 이들 실시 예는 당업자가 본 발명을 실시할 수 있기에 충분하도록 상세히 설명된다. 본 발명의 다양한 실시 예는 서로 다르지만 상호 배타적일 필요는 없음이 이해되어야 한다. 예를 들어, 여기에 기재되어 있는 특정 형상, 구조 및 특성은 일 실시 예에 관련하여 본 발명의 정신 및 범위를 벗어나지 않으면서 다른 실시 예로 구현될 수 있다. 또한, 각각의 개시된 실시 예 내의 개별 구성요소의 위치 또는 배치는 본 발명의 정신 및 범위를 벗어나지 않으면서 변경될 수 있음이 이해되어야 한다. 따라서, 후술하는 상세한 설명은 한정적인 의미로서 취하려는 것이 아니며, 본 발명의 범위는, 적절하게 설명된다면, 그 청구항들이 주장하는 것과 균등한 모든 범위와 더불어 첨부된 청구항에 의해서만 한정된다. 도면에서 유사한 참조부호는 여러 측면에 걸쳐서 동일하거나 유사한 기능을 지칭한다.The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It is to be understood that the various embodiments of the invention are different, but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention with respect to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

이하, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명을 용이하게 실시할 수 있도록 하기 위하여, 본 발명의 바람직한 실시 예들에 관하여 첨부된 도면을 참조하여 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention.

도 1은 본 발명의 일 실시예에 따른 티피엠에스 센서(100)의 구조를 예시적으로 나타낸 도면이다.1 exemplarily illustrates a structure of a TPS sensor 100 according to an exemplary embodiment of the present invention.

도 1에 도시된 바와 같이, 본 발명의 티피엠에스 센서(100)는 공기 유입구 몸체(110), 공기공급 밸브(150), 압력판(130), 스프링(160) 및 자기 형상기억합금 수단(140) 등을 포함한다.As shown in FIG. 1, the TPM sensor 100 of the present invention includes an air inlet body 110, an air supply valve 150, a pressure plate 130, a spring 160, and a magnetic shape memory alloy 140. And the like.

먼저 공기 유입구 몸체(110)에 대하여 설명하면, 본 발명의 공기 유입구 몸체(110)는 타이어 휠(120)의 임의의 부근에 장착되어, 타이어 내부로 외부에서 들어오는 공기압을 유입하게 되는데, 예컨대, 내부에 형성된 공기 유입구(170)로 공기압을 유입하는 역할을 하게 된다.First, the air inlet body 110 will be described. The air inlet body 110 of the present invention is mounted at an arbitrary vicinity of the tire wheel 120 to inflow air pressure from the outside into the tire, for example, inside. The air inlet 170 formed in the serves to inlet the air pressure.

다음으로, 본 발명의 공기공급 밸브(150)는 공기 유입구 몸체 내부에 장착되어, 이하의 구성요소를 거친 유입된 공기압을 타이어 내부의 다른 외부로 공급하는 역할을 하게 된다.Next, the air supply valve 150 of the present invention is mounted inside the air inlet body, and serves to supply the inflow air pressure through the following components to the outside of the tire.

다음으로, 본 발명의 압력판(130)은 공기 유입구 몸체(110) 내에서 공기 유입구(170)로 유입되는 공기의 압력을 장착된 자기 형상기억합금(140)에 전달하도록 공기공급 밸브(150)의 하단에 일단이 장착되어 직선 이동이 가능한 구조를 이룬다.Next, the pressure plate 130 of the present invention of the air supply valve 150 to transfer the pressure of the air flowing into the air inlet 170 in the air inlet body 110 to the mounted magnetic shape memory alloy 140 One end is mounted at the bottom to form a structure that can move linearly.

다음으로, 본 발명의 스프링(160)은 공기압 유입구(170)로 유입되는 공기 압력의 작용 방향과 반대 방향으로 압력판(130)을 지지하는 역할을 한다. 따라서, 본 발명의 압력판(130)은 일단이 공기공급 밸브(150)에 장착되고, 타단이 스프 링(160) 상에 장착되는 구조를 이룬다.Next, the spring 160 of the present invention serves to support the pressure plate 130 in a direction opposite to the direction of action of the air pressure flowing into the air pressure inlet 170. Accordingly, the pressure plate 130 of the present invention has a structure in which one end is mounted to the air supply valve 150 and the other end is mounted on the spring 160.

마지막으로, 본 발명의 자기 형상기억합금 수단(140)은 공기공급 밸브(150)에 일단이 고정되고, 압력판(130)에 타단이 고정되는 구조를 이루며 이로써, 압력판(130)의 직선 운동시 압축 또는 인장된 변형량에 대하여 비례하여 자기장을 발생시키는 역할을 하게 된다. 여기서, 자기 형상기억합금은 지능재료중의 하나로써 자기장을 가하면 가해진 자기장에 비례하게 힘이나 변위를 발생시키거나, 가해진 변위나 힘에 비례하여 자기장을 발생시키는데 적합한 재질로 확인되었다.Finally, the magnetic shape memory alloy means 140 of the present invention has a structure in which one end is fixed to the air supply valve 150 and the other end is fixed to the pressure plate 130, thereby compressing the linear movement of the pressure plate 130. Alternatively, the magnetic field may be generated in proportion to the tensile strain. Here, the magnetic shape memory alloy is one of the intelligent materials, and when a magnetic field is applied, it is identified as a material suitable for generating a force or displacement in proportion to the applied magnetic field or generating a magnetic field in proportion to the applied displacement or force.

이와 같이, 본 발명의 실시예에 따른 티피엠에스 센서(100)는 타이어 내부의 공기압이 변화함에 따라서 공기 유입구(170)를 통해 유입되는 공기압의 변화를 발생시키고, 이 공기압에 의해 압력판(130)이 이동하면서 압력판(130)과 연결된 자기 형상기억합금 수단(140)을 압축 또는 인장시켜, 이로 인하여 자기 형상기억합금의 변형량 따라 자기 형상기억합금 수단(140)에서 자기장 크기를 변화시킬 수 있게 된다. 따라서, 이 변화된 자기장을 차량의 휠 이나 차체에서 공기 유입구 바디와 가까운 곳에 위치한 자기장 측정기에서 측정하게 되면, 타이어 내부의 공기압의 크기를 손쉽게 판단할 수 있게 되는 것이다.As such, the TPM sensor 100 according to the embodiment of the present invention generates a change in the air pressure flowing through the air inlet 170 as the air pressure inside the tire changes, and the pressure plate 130 is caused by the air pressure. While moving, the magnetic shape memory alloy means 140 connected to the pressure plate 130 is compressed or tensioned, thereby changing the magnetic field size in the magnetic shape memory alloy means 140 according to the deformation amount of the magnetic shape memory alloy. Therefore, when the changed magnetic field is measured by a magnetic field meter located close to the air inlet body in the wheel or the body of the vehicle, it is possible to easily determine the magnitude of the air pressure inside the tire.

한편, 이상에서 설명한 티피엠에스 센서(100)는 자동차 타이어용으로 한정하여 설명하고 있으나, 반드시 이에 한정되지 않고, 다양한 기기에 적용될 수 있음을 이해해야 한다.Meanwhile, the TPM sensor 100 described above is described as being limited to an automobile tire, but it should be understood that the present invention is not limited thereto and may be applied to various devices.

도 1은 본 발명의 일 실시예에 따른 티피엠에스 센서(100)의 구조를 예시적으로 나타낸 도면이다.1 exemplarily illustrates a structure of a TPS sensor 100 according to an exemplary embodiment of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

100 : 티피엠에스 센서 110 : 공기 유입구 몸체100: TPM sensor 110: air inlet body

120 : 휠 130 : 압력판120: wheel 130: pressure plate

140 : 자기 형상기억합금 수단 150 : 공기공급 밸브140: magnetic shape memory means 150: air supply valve

160 : 스프링160: spring

Claims (2)

휠(120)에 장착되어 타이어 내부로 공기압을 유입하는 공기 유입구 몸체(110),An air inlet body 110 mounted on the wheel 120 to introduce air pressure into the tire; 상기 공기 유입구 몸체 내부에 장착된 공기공급 밸브(150),An air supply valve 150 mounted inside the air inlet body, 상기 공기 유입구 몸체 내에서 공기 유입구(170)로 유입되는 공기의 압력을 장착된 자기 형상기억합금(140)에 전달하는 압력판(130),Pressure plate 130 for transmitting the pressure of the air flowing into the air inlet 170 in the air inlet body to the mounted magnetic shape memory alloy 140, 상기 공기압 유입구(170)로 유입되는 공기 압력의 작용 방향과 반대 방향으로 상기 압력판(130)을 지지하는 스프링(160), 및A spring 160 supporting the pressure plate 130 in a direction opposite to an action direction of air pressure flowing into the air pressure inlet 170, and 상기 공기공급 밸브(150)에 일단이 고정되고 상기 압력판(130)에 타단이 고정되어 자기장을 발생시키는 자기 형상기억합금 수단(140)One end is fixed to the air supply valve 150 and the other end is fixed to the pressure plate 130, the magnetic shape memory alloy means 140 for generating a magnetic field 을 포함하는 자동차 타이어용 티피엠에스 센서.TPM sensor for a car tire comprising a. 제1항에 있어서,The method of claim 1, 상기 자기 형상기억합금 수단(140)은,The magnetic shape memory alloy means 140, 상기 압력판(130)의 직선 운동시 압축 또는 인장된 변형량에 대하여 비례하여 자기장을 발생시키는 것인 자동차 타이어용 티피엠에스 센서.TPM sensor for a car tire to generate a magnetic field in proportion to the amount of compression or tension in the linear movement of the pressure plate (130).
KR1020090106988A 2009-11-06 2009-11-06 Tpms sesor for car tire KR101104339B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110023109A (en) * 2016-10-20 2019-07-16 伊夸莱尔***公司 Tire inflation system vision flow director

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Publication number Priority date Publication date Assignee Title
JPS63218833A (en) * 1987-03-09 1988-09-12 Fuji Heavy Ind Ltd Tire pneumatic pressure sensor served also for alarming temperature rise in tire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110023109A (en) * 2016-10-20 2019-07-16 伊夸莱尔***公司 Tire inflation system vision flow director
CN110023109B (en) * 2016-10-20 2022-07-08 伊夸莱尔***公司 Visual flow indicator for tire inflation system

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