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KR20030048229A - Method for failure display by self diagnosis - Google Patents

Method for failure display by self diagnosis Download PDF

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Publication number
KR20030048229A
KR20030048229A KR1020010078102A KR20010078102A KR20030048229A KR 20030048229 A KR20030048229 A KR 20030048229A KR 1020010078102 A KR1020010078102 A KR 1020010078102A KR 20010078102 A KR20010078102 A KR 20010078102A KR 20030048229 A KR20030048229 A KR 20030048229A
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South Korea
Prior art keywords
diagnosis
failure
self
fault
display
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KR1020010078102A
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Korean (ko)
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KR100804659B1 (en
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반경우
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한라공조주식회사
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00978Control systems or circuits characterised by failure of detection or safety means; Diagnostic methods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00985Control systems or circuits characterised by display or indicating devices, e.g. voice simulators

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE: A method of indicating failure by self-diagnosis is provided to easily check a failed part by performing self-diagnosis when starting a vehicle. CONSTITUTION: A method of indicating failure comprises steps of diagnosing failure of each part according to a self-diagnosis mode of a vehicle selected by a driver(S102,S104), and indicating the failure diagnosis result of a failed part to a display unit. A method of indicating failure by self-diagnosis comprises steps of inputting diagnosis data from each sensor, in the self-diagnosis mode(S106), and flickering the corresponding display image to the display unit if the read result of the diagnosis data input from each sensor is diagnosed as failure(S110-S126). The method of indicating failure by self-diagnosis includes a step of converting the failed state of the diagnosed part into a voice and outputting to a speaker.

Description

자가진단에 따른 고장표시방법 {Method for failure display by self diagnosis}Fault indication method by self diagnosis {Method for failure display by self diagnosis}

본 발명은 차량의 공조시스템 고장표시시스템에 관한 것으로서, 보다 상세하게는 차량의 시동을 켜는 동시에 자가진단을 구동시켜 센서 및 구동부의 불량여부를 진단한 후 불량부위가 감지되면 고장부위에 해당하는 표시부를 점멸하여 경보하도록 하는 자가진단에 따른 고장표시방법에 관한 것이다.The present invention relates to a vehicle air conditioning system fault display system, and more particularly, a display unit corresponding to a fault site is detected when a fault is detected after diagnosing a defect of a sensor and a drive unit by turning on the vehicle and driving a self-diagnosis. The present invention relates to a fault display method according to self-diagnosis to cause the alarm to flash.

일반적으로 차량에 자가진단 시스템을 장착하여, 차량 점검이 필요한 곳에 센서를 부착하여 자가진단 결과 해당 센서에 이상이 발생할 경우 이를 운전자에게 경보하도록 한다.In general, a self-diagnosis system is installed in a vehicle, and a sensor is attached to a place where a vehicle inspection is needed so that a driver can be alerted when an error occurs in the sensor as a result of the self-diagnosis.

종래기술에 따른 자가진단에 따른 고장코드 표시시스템은 대한민국 특허등록 "제 10-0199163 호"에 개시되어 있다.The fault code display system according to the self-diagnosis according to the prior art is disclosed in Korean Patent Registration No. 10-0199163.

도 1은 종래 기술에 따른 자가진단에 따른 고장코드 표시장치의 블록 구성도로서, 에어컨 구동을 위한 차량의 주행상태를 감지하는 다수의 센서로 이루어진 감지부(10)와, 시동스위치(S1), 자동선택 스위치(S2), 에어컨 작동스위치(S3), 벤트 스위치(S4), 감지부(10)와 다수의 스위치(S1∼S4)의 출력단에 연결되어 자가진단기능을 수행하고 고장난 항목에 해당하는 표시신호 및 경보신호를 출력하는 고장진단 제어부(20), 고장진단 제어부(20)의 출력단에 연결되어 고장난 항목을 표시하는 정보표시부(30)와, 경보신호에 따라 작동되어 경보를 울려 고장이 발생한 항목을 나타내는 경보부(40)로 구성된다.1 is a block diagram of a fault code display device according to a self-diagnosis according to the related art, comprising: a sensing unit 10 including a plurality of sensors for detecting a driving state of a vehicle for driving an air conditioner, a start switch S1, It is connected to the output of the automatic selection switch (S2), the air conditioner operation switch (S3), the vent switch (S4), the sensing unit 10 and the plurality of switches (S1 to S4) performs a self-diagnostic function and corresponds to the broken item The fault diagnosis control unit 20 outputs a display signal and an alarm signal, an information display unit 30 connected to the output terminal of the fault diagnosis control unit 20 to display a broken item, and is operated according to an alarm signal to sound an alarm to generate a fault. It consists of the alarm part 40 which shows an item.

이와 같이 구성된 종래 기술은 운전자가 시동스위치(S1)를 작동시킨 후 자가진단을 선택하면, 고장진단 제어부(20)는 자가진단 루틴을 수행하여 감지부(10)로부터 고장여부를 검지한다.In the prior art configured as described above, when the driver selects self-diagnosis after operating the start switch S1, the failure diagnosis control unit 20 performs a self-diagnosis routine to detect whether the failure is detected from the detection unit 10.

자가진단 루틴을 수행한 결과 고장발생 부분이 있을 경우, 고장이 발생된 부분이 하나 이상인지를 판단한다. 고장이 발생된 항목이 하나인 경우에는 해당하는 고장코드를 정보 표시부(30)을 통해 일정간격으로 반복적으로 표시하고, 고장부분이 하나 이상인 경우에는 연속동작 선택여부를 판단하여, 연속동작이 선택되면 그에 따라 다수의 고장 코드를 표시하고, 연속동작이 선택되지 않는 경우에는 스텝동작의 선택여부를 판단한다. 스텝동작이 선택된 경우에는 하나의 고장코드를 반복즉으로 표시하고, 다음 고장항목 표시선택에 따라 고장이 발생한 다수의 항목을 차례대로 표시하게 된다.If there is a failure part as a result of the self-diagnosis routine, it is determined whether there is more than one failure part. If there is only one item that causes a failure, the corresponding failure code is repeatedly displayed at a predetermined interval through the information display unit 30. If there is more than one failure part, it is determined whether the continuous operation is selected and the continuous operation is selected. Accordingly, a plurality of fault codes are displayed, and if the continuous operation is not selected, it is determined whether the step operation is selected. When the step operation is selected, one fault code is displayed repeatedly, and according to the next fault item display selection, a plurality of items having a fault are sequentially displayed.

운전자는 표시된 고장코드를 확인함에 따라 고장이 발생한 부분에 해당하는 항목을 파악하게 된다.The driver checks the displayed fault code and identifies the item corresponding to the fault.

그러나, 이와 같은 종래기술에 의한 자가진단에 따른 고장표시방법은 차량의 에어컨 시스템을 자가진단 후 고장이 발생된 부분에 대하여 고장 내용을 2디지트(digit)의 코드로 표시부에 디스플레이하므로 고장코드에 해당하는 내용을파악하기 위해서는 제작된 코드설명서를 확인해야만 고장부위를 확인해야 하는 문제점이 있었다. 이와 같이, 코드설명서가 없을 경우에는 고장코드만 확인될 뿐 고장내용을 알지못해 운전자로 하여금 불안감만 부추기는 문제점이 있었다.However, the fault display method according to the self-diagnosis according to the related art corresponds to the fault code because the fault information is displayed on the display unit with a 2-digit code for the portion where the fault occurs after the self-diagnosis of the air conditioning system of the vehicle. In order to grasp the content, the problem has to be confirmed only by checking the manufactured code manual. As such, when there is no code manual, only the fault code is checked, and there is a problem that the driver does not know the fault content and only induces anxiety.

본 발명은 상기한 종래기술의 제반 문제점을 해결하기 위한 것으로, 그 목적은 차량의 시동을 켜는 동시에 자가진단을 구동시켜 센서 및 구동부의 불량여부를 진단한 후 불량부위가 감지되면 고장부위에 해당하는 표시부를 점멸하여 경보하므로 별도의 코드설명서가 없어도, 고장부위를 쉽게 파악할 수 있도록 하는 자가진단에 따른 고장표시방법을 제공함에 있다.The present invention is to solve the above problems of the prior art, the purpose is to turn on the vehicle at the same time driving the self-diagnosis to diagnose the defects of the sensor and the drive unit and then to detect the failure site corresponding to the failure site Since the display is blinking and alarming, there is provided a fault display method according to self-diagnosis so that a failure part can be easily identified without a separate code manual.

도 1은 종래 기술에 따른 자가진단에 따른 고장코드 표시장치의 블록 구성도이고,1 is a block diagram of a fault code display device according to a self-diagnosis according to the prior art,

도 2는 본 발명에 따른 자가진단에 따른 고장표시방법을 구현하기 위한 자가진단에 따른 고장표시장치의 블록 구성도이고,2 is a block diagram of a failure display device according to self-diagnosis for implementing a failure display method according to the self-diagnosis according to the present invention,

도 3은 본 발명의 실시예에 의한 자가진단에 따른 고장표시과정의 흐름도이고,3 is a flowchart of a fault display process according to a self-diagnosis according to an embodiment of the present invention;

도 4a 내지 도 4f는 고장발생에 따른 고장표시 세그먼트를 표시한 공조상태 표시창의 전면도이고,4A to 4F are front views of the air conditioning state display window displaying a fault indication segment according to a fault occurrence,

도 5는 본 발명의 실시예에 의한 자가진단에 따른 고장표시과정의 흐름도이다.5 is a flowchart illustrating a fault display process according to a self-diagnosis according to an embodiment of the present invention.

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

100 : 중앙처리장치110 : 스위칭부100: central processing unit 110: switching unit

111 : 시동스위치112 : 자동모드 스위치111: start switch 112: automatic mode switch

113 : 토출모드 선택스위치114 : 풍량조절 스위치113: discharge mode selection switch 114: air flow control switch

120 : 센서부121 : 실내온도 센서120: sensor unit 121: room temperature sensor

122 : 외기온도 센서123 : EVAP 센서122: outside temperature sensor 123: EVAP sensor

124 : 템프도어 액츄에이터 센서125 : 토출모드 액츄에이터 센서124: Tempdoor Actuator Sensor 125: Discharge Mode Actuator Sensor

130 : 표시부141 : 음성구동부130: display unit 141: voice driving unit

142 : 음성메모리142: voice memory

본 발명의 목적을 달성하기 위한 본 발명에 의한 자가진단에 따른 고장표시과정은 운전자가 선택한 차량의 자가진단모드에 따라 설정된 각부의 고장여부를 진단하는 단계와, 고장진단 결과를 고장부분에 대하여 표시부에 표시하는 단계로 이루어진 고장표시방법에 있어서, 상기 차량의 자가진단모드에서 각 센서로부터 진단 데이터를 입력하는 데이터입력과정과, 상기 각 센서로부터 입력된 진단 데이터 판독결과 고장으로 판별될 경우 상기 표시부에 해당 표시 이미지를 점멸하는 고장표시과정을 포함하여 이루어짐을 특징으로 한다.The fault display process according to the self-diagnosis according to the present invention for achieving the object of the present invention comprises the steps of diagnosing the failure of each part set according to the self-diagnosis mode of the vehicle selected by the driver, and displays the fault diagnosis result for the fault portion In the fault display method comprising the steps of: a data input process for inputting diagnostic data from each sensor in the self-diagnosis mode of the vehicle, and if it is determined that the diagnostic data read result input from each sensor is a failure And a fault indication process of blinking the corresponding display image.

여기서, 고장표시과정은 실내온도센서 고장이면 'AUTO'표시부를 점멸하고, 외기온도센서 고장이면 외기온도 표시부를 점멸하고, 증발기센서가 고장이면 에어콘 'A/C' 표시부를 점멸하고, 템프도어 액츄에이터가 고장이면 'TEMP' 표시부를 점멸하고, 토출모드 액츄에이터가 고장이면 'MODE' 표시부를 점멸하는 것을 특징으로 한다.Here, the fault display process blinks the 'AUTO' display if the indoor temperature sensor is faulty, flashes the ambient temperature display if the air temperature sensor is faulty, flashes the air conditioner 'A / C' display if the evaporator sensor is faulty, and the temp door actuator. 'TEMP' display blinks when the fault is, and 'MODE' display blinks when the discharge mode actuator is broken.

이와 같이 이루어진 본 발명을 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.The present invention made as described above will be described in detail with reference to the accompanying drawings.

도 2는 본 발명을 구현하기 위한 자가진단에 따른 고장표시장치의 블록 구성도로서, 이에 도시된 바와 같이 시동스위치(111), 자동모드 스위치(112), 토출모드 선택스위치(113), 풍량조절 스위치(114)를 포함한 스위칭부(110)와, 실내온도 센서(121), 외기온도센서(122), EVAP 센서(123), 템프도어 액츄에이터 센서(124), 토출모드 액츄에이터센서(125)를 포함한 센서부(120)와, 상기 스위칭부(110)를 통한 사용자의 선택여부를 해당 표시 세그먼트를 온시킴과 아울러, 센서부(120)를 통해 검지된 결과와 고장이 검출된 부위에 대한 해당 표시 세그먼트를 점멸 제어하는 중앙처리장치(100)와, 상기 중앙처리장치(100)의 제어에 의하여 해당 세그먼트를 점멸 또는 온시키는 표시부(130)와, 상기 중앙처리장치(100)의 제어에 의하여 고장이 검출될 경우 스피커(SPK)를 통해 해당 고장부위에 대하여 음성으로 경보하는 음성구동부(141)와, 상기 음성구동부(141)로 출력하는 음성에 해당하는 음성 데이터를 제공하는 음성메모리(142)로 구성된다.2 is a block diagram of a failure display apparatus according to a self-diagnosis for implementing the present invention, as shown in the start switch 111, automatic mode switch 112, discharge mode selection switch 113, air volume control Switching unit 110 including a switch 114, the room temperature sensor 121, the outside temperature sensor 122, EVAP sensor 123, the temp door actuator sensor 124, including the discharge mode actuator sensor 125 In addition to turning on the display segment, whether the user selects the user through the sensor unit 120 and the switching unit 110, the display segment corresponding to the result detected by the sensor unit 120 and the part where the failure is detected. Detects failure by the central processing unit 100 to control the flashing, the display unit 130 to flash or turn on the segment by the control of the central processing unit 100, and the control of the central processing unit 100 The fault through the speaker (SPK) With respect to the drive unit consists of a negative 141 to alarm by voice, a voice memory 142 that provides audio data corresponding to the audio output to the audio driving unit 141. The

도 3a는 차량의 전면에 구비된 공조 선택 스위치로 자동모드 스위치(112), 토출모드 선택스위치(113), 풍량조절 스위치(114)로 구성되며, 표시창에는 자동모드 표시부(131)(Auto), 토출모드 표시부(132), 풍량 표시부(133), 외기/내기온도 표시부(134)로 구성된다.3A is an air conditioner selection switch provided on the front of the vehicle, and includes an automatic mode switch 112, a discharge mode selection switch 113, and an air volume control switch 114, and an automatic mode display unit 131 (Auto), The discharge mode display unit 132, the air flow rate display unit 133, and the outside air / between temperature display unit 134.

이와 같이 구성된 본 발명의 실시예에 따른 작용을 첨부된 도 2내지 도 5를 참조하여 보다 상세히 설명하면 다음과 같다.Referring to Figures 2 to 5 attached to the operation according to the embodiment of the present invention configured as described above in detail as follows.

도 5는 본 발명의 실시예에 따른 자가진단에 따른 고장표시과정의 흐름도로서, 운전자가 시동스위치(111)를 온시키면, 자가진단모드를 시작한다.(S102)(S104)5 is a flowchart of a fault display process according to a self-diagnosis according to an embodiment of the present invention. When the driver turns on the start switch 111, the self-diagnosis mode is started. (S102) (S104)

자가진단모드가 시작됨에 따라 실내온도센서(121), 외기온도센서(122), EVAP 센서(123), 템프도어 액츄에이터 센서(124), 토출모드 액츄에이터 센서(125)를 포함한 각 센서부로부터 해당 부위의 정상동작여부를 검지한다.As the self-diagnosis mode starts, the corresponding part from each sensor unit including an indoor temperature sensor 121, an outside temperature sensor 122, an EVAP sensor 123, a temp door actuator sensor 124, and a discharge mode actuator sensor 125 The normal operation of the unit is detected.

각 센서로부터 검지된 점검 데이터는 중앙처리장치(100)에 입력되어 불량여부를 판단한다.(S106)Check data detected from each sensor is input to the central processing unit 100 to determine whether or not defective (S106).

만약, 판단결과 실내온도 센서가 불량이면, 도 4a에 도시된 바와 같이, 자동모드 표시부(131)(Auto)를 점멸한다.(S108)(S110)If the determination result is that the indoor temperature sensor is defective, as shown in FIG. 4A, the auto mode display unit 131 (Auto) blinks. (S108) (S110).

외기온도 센서(122)에 불량이 발생한 경우에는 도 4b에 도시된 바와 같이, 외기온도표시 세그먼트를 점멸한다.(S108)(S114)If a defect occurs in the outside temperature sensor 122, as shown in FIG. 4B, the outside temperature display segment blinks. (S108) (S114)

EVAP 센서(123)로부터 출력된 데이터에 의하여 증발기에 불량이 발생한 것으로 판단된 경우에는 도 4f에 도시된 바와 같이, 에어콘(A/C)표시부를 점멸한다.(S116)(S118)If it is determined that a failure occurs in the evaporator by the data output from the EVAP sensor 123, the air conditioner (A / C) display unit blinks as shown in FIG. 4F. (S116) (S118)

템프도어 액츄에이터 센서(124)로부터 수신된 데이터에 의하여 템프도어 액츄에이터에 불량이 발생한 것으로 판단된 경우에는 도 4e에 도시된 바와 같이, TEMP 표시부(133)를 점멸한다.(S120)(S122)If it is determined that a defect has occurred in the temporal actuator based on data received from the temporal actuator sensor 124, the TEMP display unit 133 blinks as shown in FIG. 4E. (S120) (S122)

토출모드 액츄에이터 센서(125)로부터 수신된 데이터에 의하여 토출모드 액추에이터에 불량이 발생한 것으로 판단될 경우에는 도 4d에 도시된 바와 같이, MODE 표시부(132)를 점멸한다.(S124)(S126)If it is determined that a failure has occurred in the discharge mode actuator based on the data received from the discharge mode actuator sensor 125, the mode display unit 132 blinks as shown in FIG. 4D. (S124) (S126)

상기한 과정을 통해 운전자가 표시된 불량 부위를 쉽게 확인할 수 있어, 정비할 수 있도록 한다.(S128)Through the above process, the driver can easily check the marked defective part, so that it can be maintained. (S128)

이상에서 본 발명에 따른 바람직한 실시예에 대해 설명하였으나, 다양한 형태로 변형이 가능하며, 본 기술분야에서 통상의 지식을 가진자라면 본 발명의 특허청구범위를 벗어남이 없이 다양한 변형예 및 수정예를 실시할 수 있을 것으로 이해된다.Although a preferred embodiment according to the present invention has been described above, it is possible to modify in various forms, and those skilled in the art to various modifications and modifications without departing from the claims of the present invention It is understood that it may be practiced.

이상에서 설명한 바와 같이, 본 발명에 따른 자가진단에 따른 고장표시방법은 차량의 시동을 켜는 동시에 자가진단을 구동시켜 센서 및 구동부의 불량여부를 진단한 후 불량부위가 감지되면, 고장부위에 해당하는 표시부를 점멸하여 경보하므로 운전자롤 하여금 별도의 고장표시 코드설명서가 없어도, 고장부위를 쉽게 파악할 수 있는 효과가 있다.As described above, the fault display method according to the self-diagnosis according to the present invention turns on the start of the vehicle and simultaneously drives the self-diagnosis to diagnose whether the sensor and the driving unit are defective and then detects the defective part. Since the display blinks to alert the operator, it is possible to easily identify the fault even without a separate fault indication code manual.

Claims (3)

운전자가 선택한 차량의 자가진단모드에 따라 설정된 각부의 고장여부를 진단하는 단계와, 고장진단 결과를 고장부분에 대하여 표시부에 표시하는 단계로 이루어진 고장표시방법에 있어서,In the fault display method comprising the step of diagnosing the failure of each part set according to the self-diagnosis mode of the vehicle selected by the driver, and displaying the result of the fault diagnosis on the display unit for the fault part, 상기 차량의 자가진단모드에서 각 센서로부터 진단 데이터를 입력하는 데이터입력과정;A data input process of inputting diagnostic data from each sensor in the self-diagnosis mode of the vehicle; 상기 각 센서로부터 입력된 진단 데이터 판독결과 고장으로 판별될 경우 상기 표시부에 해당 표시 이미지를 점멸하는 고장표시과정을 포함하여 이루어짐을 특징으로 하는 자가진단에 따른 고장표시방법.And a fault display process of blinking a corresponding display image on the display unit when it is determined that the fault is diagnosed as a result of the diagnosis data read from the respective sensors. 제 1 항에 있어서, 상기 고장표시과정은The method of claim 1, wherein the fault display process 실내온도센서 고장이면 'AUTO'표시부를 점멸하고,If the room temperature sensor is broken, 'AUTO' will blink. 외기온도센서 고장이면 외기온도 표시부를 점멸하고,If the outside temperature sensor is broken, the outside temperature display will blink. 증발기센서가 고장이면 에어콘 'A/C' 표시부를 점멸하고,If the evaporator sensor is broken, the air conditioner 'A / C' indicator will blink. 템프도어 액츄에이터가 고장이면 'TEMP' 표시부를 점멸하고,If the temp door actuator is broken, the 'TEMP' indicator will flash. 토출모드 액츄에이터가 고장이면 'MODE' 표시부를 점멸하는 것을 포함하여 이루어진 것을 특징으로 하는 자가진단에 따른 고장표시방법.The failure display method according to the self-diagnosis characterized in that made if the discharge mode actuator failure, 'MODE' flashing. 제 1 항에 있어서, 고장표시과정에 부가하여 고장으로 판별될 부위의 고장상태를 음성으로 변환하여 스피커로 출력하는 것을 더 포함하여 이루어짐을 특징으로 하는 자가진단에 따른 고장표시방법.The method of claim 1, further comprising converting a failure state of a part to be determined as a failure into a voice and outputting it to a speaker in addition to the failure display process.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100717951B1 (en) * 2006-01-26 2007-05-11 지멘스 오토모티브 주식회사 Horn outputting method for car
KR20150025748A (en) * 2013-08-30 2015-03-11 한라비스테온공조 주식회사 Air conditioning system for automotive vehicles
CN112711495A (en) * 2020-12-28 2021-04-27 深圳创维汽车智能有限公司 Display screen fault diagnosis method and device and computer readable storage medium

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US11970047B2 (en) 2020-12-01 2024-04-30 Haier Us Appliance Solutions, Inc. Recreational vehicle air conditioner and methods of operation

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JPH0550840A (en) * 1991-08-22 1993-03-02 Zexel Corp Trouble diagnostic result display device for vehicle air conditioner
JP3788657B2 (en) 1997-05-01 2006-06-21 カルソニックカンセイ株式会社 Door control device for vehicle air conditioner system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100717951B1 (en) * 2006-01-26 2007-05-11 지멘스 오토모티브 주식회사 Horn outputting method for car
KR20150025748A (en) * 2013-08-30 2015-03-11 한라비스테온공조 주식회사 Air conditioning system for automotive vehicles
CN112711495A (en) * 2020-12-28 2021-04-27 深圳创维汽车智能有限公司 Display screen fault diagnosis method and device and computer readable storage medium

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