KR100452863B1 - Accelerator error correction device including a potentiometer, a control unit, a warning unit, and a driving unit - Google Patents

Accelerator error correction device including a potentiometer, a control unit, a warning unit, and a driving unit Download PDF

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KR100452863B1
KR100452863B1 KR1019970080144A KR19970080144A KR100452863B1 KR 100452863 B1 KR100452863 B1 KR 100452863B1 KR 1019970080144 A KR1019970080144 A KR 1019970080144A KR 19970080144 A KR19970080144 A KR 19970080144A KR 100452863 B1 KR100452863 B1 KR 100452863B1
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potentiometer
accelerator
signal
driving
vehicle
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KR1019970080144A
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Korean (ko)
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KR19990059930A (en
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강형모
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현대자동차주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
    • B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

PURPOSE: An accelerator error correction device is provided to prevent an impossible situation of travel of a vehicle and to warn of the impossible situation, by correcting the operating state of an accelerator with a constant value maintaining creep travel when a potentiometer is broken down. CONSTITUTION: An accelerator error correction device includes a potentiometer(20) outputting a signal for displacement of an accelerator(10) operated by a driver as voltage; a control unit(30) controlling the output torque and speed of a vehicle according to the signal of the potentiometer; a warning unit(50) displaying a fault state of the potentiometer; and an actuator(40) driving the vehicle according to the signal of the control unit. The control unit drives the vehicle at creep travel speed by correcting a constant value maintaining creep travel with the signal of the accelerator if a fault of the potentiometer is detected and by outputting the signal to the driving unit.

Description

가속기 에러 보정장치Accelerator Error Compensator

본 발명은 전기 자동차의 가속기에 관한 것으로서, 더욱 상세하게 기술하면 가속기의 고장이 검출되는 경우 이를 경고하고, 크리프(Creep) 주행을 유지시켜 차량의 이동성이 확보되도록 하는 가속기 에러 보정장치에 관한 것이다.The present invention relates to an accelerator of an electric vehicle. More specifically, the present invention relates to an accelerator error correcting apparatus that warns a failure of an accelerator and detects creep, thereby maintaining mobility of the vehicle.

가솔린 차량은 운전자가 액셀레이터(accelerator, 가속기)를 조작함에 따라 내부의 스로틀 밸브 개폐량이 조절되며, 도시되지 않은 제어장치가 스로틀 밸브의 개폐량에 따라 엔진으로 유입되는 공기량을 검출하여 연료량을 조절하여 차량의 출력 토크가 조절된다.The gasoline vehicle controls the amount of opening / closing of the throttle valve as the driver operates the accelerator, and the control device (not shown) detects the amount of air flowing into the engine according to the amount of opening and closing of the throttle valve to adjust the amount of fuel. The output torque of is adjusted.

전기 자동차는 운전자가 도시되지 않은 가속기를 조작하게 되면 제어장치가 가속기의 조작량에 따라 모터에 출력하는 전력량을 달리함으로써 차량의 동력 발생세기가 조절된다.In the electric vehicle, when the driver manipulates an accelerator not shown, the power generation strength of the vehicle is adjusted by varying the amount of power that the control device outputs to the motor according to the accelerator operation amount.

그러나, 종래의 전기 자동차에서 가속기는 조작량을 검출하는 센서인 포텐셔미터와 물리적 기구를 통해 직접 연결되어 있다.However, in a conventional electric vehicle, the accelerator is directly connected through a potentiometer and a physical device, which is a sensor for detecting an operation amount.

따라서, 반복적인 동작에 따른 연결부의 마모로 고장이 발생하게 되며, 이에 따라 가속기의 조절 동작이 제어수단에 검출되지 않아 차량의 운행이 불가능하게 되는 문제점이 발생된다.Therefore, a failure occurs due to wear of the connection part according to the repetitive operation, and thus a problem arises in that the operation of the accelerator is not detected by the control means and the vehicle cannot be operated.

따라서, 본 발명의 목적은 상기한 문제점을 해결하기 위한 것으로써, 가속기의 조작 상태를 검출하는 포텐셔미터의 고장이 발생하는 경우 가속기의 조작상태를 크리프 주행이 유지되는 상수값으로 보정하여 차량 주행 불능 사태를 막고, 이를 경고하도록 한 것이다.Accordingly, an object of the present invention is to solve the above problems, when the failure of the potentiometer for detecting the operation state of the accelerator occurs by correcting the operation state of the accelerator to a constant value that maintains the creep running situation incapable of driving the vehicle To warn you of this.

도1은 본 발명의 실시예에 따른 가속기 에러 보정장치의 제어 블럭도이다.1 is a control block diagram of an accelerator error correction apparatus according to an embodiment of the present invention.

＜도면의 주요 부분에 대한 부호의 설명＞<Description of the code | symbol about the principal part of drawing>

10 : 가속기 20 : 포텐셔미터 30 : 제어장치10: accelerator 20: potentiometer 30: control device

40 : 액츄에이터 50 : 경고등40: actuator 50: warning light

상기한 목적을 달성하기 위한 본 발명의 구성은, 운전자에 의해 조작되는 가속기의 변위에 대한 신호를 전압으로 출력하는 포텐셔미터와, 상기 포텐셔미터의 신호에 따라 차량의 출력 토크 및 속도를 제어하는 제어장치와, 상기 포텐셔미터의 고장여부를 표시하는 경고수단과, 상기 제어장치의 신호에 따라 차량을 구동시키는 구동수단을 포함하며,The structure of the present invention for achieving the above object is a potentiometer for outputting a signal for the displacement of the accelerator operated by the driver as a voltage, a control device for controlling the output torque and speed of the vehicle in accordance with the signal of the potentiometer and Warning means for indicating whether or not the potentiometer failure, and drive means for driving the vehicle in accordance with the signal of the control device,

상기 제어수단은 상기 포텐셔미터의 고장이 검출되는 경우 크리프 주행이 유지되는 상수값을 가속기의 신호로 보정하여 상기 구동수단에 출력시켜 크리프 주행속도로 구동시키는 것을 특징으로 하는 가속기 에러 보정장치를 제공한다.The control means provides an accelerator error compensating device, characterized in that when a failure of the potentiometer is detected, a constant value at which creep travel is maintained is corrected by a signal of an accelerator and output to the driving means to drive at a creep travel speed.

본 발명을 용이하게 실시할 수 있는 가장 바람직한 실시예를 첨부된 도면을 참조로 하여 상세히 설명한다.Best Mode for Carrying Out the Invention The present invention will be described in detail with reference to the accompanying drawings.

첨부한 도1에 도시되어 있는 바와 같이 본 발명의 작용은 다음과 같다.As shown in the accompanying Figure 1, the operation of the present invention is as follows.

운전자에 의해 조작되는 가속기(10)의 변위를 검출하여 그에 대한 신호를 전압의 신호로 출력하는 포텐셔미터(20)와; 이 포텐셔미터(20)의 신호를 입력받아 차량의 출력 토크와 속도를 조절하며, 이 포텐셔미터(20)의 신호가 검출되지 않아 고장으로 판단되는 경우 크리프 주행이 유지되는 상수값을 가속기(10)의 변위 값으로 보정하여 출력하는 제어장치(30)와; 상기 제어장치(30)에서 출력되는 토크 및 속도제어신호에 따라 차량을 주행시키는 모터로 이루어지는 액츄에이터(40)와; 상기 제어장치(30)에서 가속기(10)의 고장이라고 판정되어 출력되는 경고 신호에 따라 운전자에게 가속기(10)의 고장을 경고하는 경고등(50)으로 이루어진다.A potentiometer 20 for detecting a displacement of the accelerator 10 operated by the driver and outputting a signal thereof as a signal of voltage; The input torque of the potentiometer 20 is adjusted to adjust the output torque and speed of the vehicle, and if the signal of the potentiometer 20 is not detected and is determined to be a failure, the constant value of creep driving is maintained and the displacement of the accelerator 10 is changed. A control device 30 for correcting and outputting the value; An actuator 40 comprising a motor for driving the vehicle according to the torque and speed control signal output from the control device 30; The control device 30 is made of a warning light (50) for warning the driver of the failure of the accelerator 10 in accordance with a warning signal that is determined to be the failure of the accelerator (10).

전기 자동차는 전기를 동력원으로 사용하여 모터인 액츄에이터(40)를 구동시켜 휠에 동력을 전달함으로써, 주행될 수 있도록 하는 것으로 운전자의 가속기(10) 조작에 따라 출력 토크 및 속도가 조정된다.An electric vehicle uses electric power as a power source to drive an actuator 40, which is a motor, to transmit power to a wheel so that the vehicle can be driven so that the output torque and speed are adjusted according to the driver's operation of the accelerator 10.

즉, 운전자가 가속기(10)를 조작하면 이에 기구적인 동작으로 포텐셔미터(20)를 비례적으로 동작하여 해당 신호를 출력하게 된다.That is, when the driver manipulates the accelerator 10, the potentiometer 20 is proportionally operated in a mechanical operation to output the corresponding signal.

상기 포텐셔미터(20)는 가속기(10)의 조작에 따라 저항값이 변화되어 0볼트에서 10볼트 사이 혹은 0볼트에서 5볼트 사이의 전압을 출력하는 것이다.The potentiometer 20 outputs a voltage between 0 volts and 10 volts or between 0 volts and 5 volts by changing the resistance value according to the operation of the accelerator 10.

다시 기술하면, 가속기(10)의 변위가 최소이면 정상적인 경우는 포텐셔미터(20)의 출력 전압은 0볼트가 되고, 최대치인 경우는 출력 전압이 5볼트또는 10볼트가 되며, 그 중간 위치인 경우 해당 전압을 출력하게 된다.In other words, if the displacement of the accelerator 10 is minimum, the output voltage of the potentiometer 20 is 0 volts in the normal case, and the output voltage is 5 volts or 10 volts in the maximum case, and in the intermediate position Output voltage.

그러나 포텐셔미터(20)가 고장인 경우는 최소, 최대 및 그 중간값이 0볼트로 출력된다.However, if the potentiometer 20 is faulty, the minimum, maximum, and intermediate values thereof are output at zero volts.

상기 포텐셔미터(20)가 가속기(10)의 위치 신호를 출력하면 제어장치(30)는 상기 신호를 입력으로 가속기(10)의 위치를 파악하고 이에 따라 출력 토크 및 속도를 연산한 다음 비례한 출력 신호를 모터로 이루어지는 액츄에이터(40)로 출력하게 된다.When the potentiometer 20 outputs the position signal of the accelerator 10, the control device 30 determines the position of the accelerator 10 by inputting the signal, calculates the output torque and speed accordingly, and then outputs a proportional output signal. The output to the actuator 40 made of a motor.

따라서, 액츄에이터(40)는 상기 제어장치(30)의 신호에 따라 전기 자동차를 주행시킨다.Therefore, the actuator 40 drives the electric vehicle according to the signal of the control device 30.

그러나, 상기 포텐셔미터(20)는 기구적인 조작에 의해 마모성을 가지므로 고장이 날 수 있다.However, since the potentiometer 20 has wearability by mechanical manipulation, it may cause a failure.

만일, 포텐셔미터(20)가 고장난 경우 제어장치(30)는 이를 파악하고 운전자에게 가속기(10)가 고장이라는 것을 알리기 위해 경고등(50)을 점등시킨다.If the potentiometer 20 has failed, the control device 30 turns on the warning lamp 50 to detect this and inform the driver that the accelerator 10 has failed.

종래에는 상기 포텐셔미터(20)에 고장이 발생되면 출력 전압이 0볼트로 출력되므로써 제어장치(30)는 액츄에이터(40)를 구동시키지 않게 되므로 전기 차량이 진행하지 못하게 되어 있으나, 본 발명은 이를 해결하기 위해 자기 보정 기능을 사용하여 차량을 진행시키도록 하였다.Conventionally, when a failure occurs in the potentiometer 20, since the output voltage is outputted as 0 volts, the control device 30 does not drive the actuator 40, so that the electric vehicle does not proceed, but the present invention solves this problem. Self-calibration was used to drive the vehicle.

즉, 상기 포텐셔미터(20)가 고장이라고 파악되면 제어장치(30)는 크리프(Creep) 주행이 유지되는 상수값을 가속기(10)의 출력으로 보정 적용하여 해당 값을 액츄에이터(40)에 출력한다.That is, when the potentiometer 20 is found to be a failure, the control device 30 corrects and applies the constant value at which creep driving is maintained to the output of the accelerator 10 and outputs the corresponding value to the actuator 40.

따라서, 액츄에이터(40)는 크리프 주행이 유지되는 상수값으로 출력 토크 및 속도가 제어되어 최소한의 움직임으로 주행되도록 함으로써, 가속기(10)의 고장으로 인한 비상사태를 모면하게 되는 것이다.Therefore, the actuator 40 is controlled by the output torque and the speed to a constant value that maintains the creep running so that the actuator 40 runs with the minimum movement, thereby avoiding an emergency caused by the failure of the accelerator 10.

상기 크리프 주행이 유지되는 상수값은 전기 자동차는 통상적으로 자동 변속기가 적용되므로, 중립 변속단이 아닌 전진 및 후진 변속단의 상태에서 브레이크 페달의 구동이 해제되는 경우 차량이 조금씩 주행될 수 있도록 하는 제어값을 의미한다.The constant value at which the creep driving is maintained is controlled by an electric vehicle so that the vehicle can be driven little by little when the brake pedal is released in the state of the forward and reverse shift stages rather than the neutral shift stage. It means the value.

즉, 본 발명은 운전자의 감가속(주행) 의지를 검출하는 포텐셔미터의 고장이 발생하더라도 크리프 주행이 유지되도록 함으로써, 주행 불가한 위급 상황에서 정비소 혹은 노견으로의 안정한 이동을 제공한다.That is, the present invention maintains creep driving even when a potentiometer that detects the driver's deceleration (driving) will occur, thereby providing stable movement to a repair shop or a roadside in an emergency situation where driving is impossible.

이상에서와 같이 본 발명의 실시예에서, 차량의 가속기 조작 상태를 검출하는 포텐셔미터의 고장으로 판단되는 크리프 주행이 유지되도록 하여 차량의 주행 불능 사태를 막고, 이를 경고함으로써 수리 조치를 취할 수 있도록 한다.As described above, in the embodiment of the present invention, the creep driving determined as the failure of the potentiometer for detecting the accelerator operation state of the vehicle is maintained, thereby preventing the vehicle from being incapable of driving and taking a warning to warn the user to take repair measures.

Claims (1)

운전자에 의해 조작되는 가속기의 변위에 대한 신호를 전압으로 출력하는 포텐셔미터와, 상기 포텐셔미터의 신호에 따라 차량의 출력 토크 및 속도를 제어하는 제어장치와, 상기 포텐셔미터의 고장여부를 표시하는 경고수단과, 상기 제어장치의 신호에 따라 차량을 구동시키는 구동수단을 포함하며,A potentiometer for outputting a signal of the displacement of the accelerator operated by the driver as a voltage, a control device for controlling the output torque and the speed of the vehicle according to the signal of the potentiometer, warning means for indicating whether the potentiometer is broken, Drive means for driving the vehicle in response to a signal from the control device, 상기 제어수단은 상기 포텐셔미터의 고장이 검출되는 경우 크리프 주행이 유지되는 상수값을 가속기의 신호로 보정하여 상기 구동수단에 출력시켜 크리프 주행속도로 구동시키는 것을 특징으로 하는 가속기 에러 보정장치.And the control means corrects a constant value at which creep travel is maintained by outputting the signal to the driving means by driving the creep traveling speed when a failure of the potentiometer is detected.
KR1019970080144A 1997-12-31 1997-12-31 Accelerator error correction device including a potentiometer, a control unit, a warning unit, and a driving unit KR100452863B1 (en)

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KR100579919B1 (en) * 1999-12-30 2006-05-15 현대자동차주식회사 Detecting method for acceleration complement and fail of diesel engine of vehicle

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KR20010110825A (en) * 2000-06-08 2001-12-15 류정열 device for detecting trouble of an accelerator cable

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KR19980020877A (en) * 1996-09-12 1998-06-25 김영귀 How to troubleshoot accelerator pedal sensor of vehicle
KR100198493B1 (en) * 1995-09-06 1999-06-15 류정열 Accelerating apparatus and control method of an electric vehicle

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KR19980020877A (en) * 1996-09-12 1998-06-25 김영귀 How to troubleshoot accelerator pedal sensor of vehicle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100579919B1 (en) * 1999-12-30 2006-05-15 현대자동차주식회사 Detecting method for acceleration complement and fail of diesel engine of vehicle

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