KR100357350B1 - Safety circuit for electronic controller of wheel lock prevention device - Google Patents

Safety circuit for electronic controller of wheel lock prevention device Download PDF

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KR100357350B1
KR100357350B1 KR1019970068452A KR19970068452A KR100357350B1 KR 100357350 B1 KR100357350 B1 KR 100357350B1 KR 1019970068452 A KR1019970068452 A KR 1019970068452A KR 19970068452 A KR19970068452 A KR 19970068452A KR 100357350 B1 KR100357350 B1 KR 100357350B1
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South Korea
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microcontroller
signal
gate
valve block
outputting
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KR1019970068452A
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Korean (ko)
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KR19990049497A (en
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김건
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주식회사 만도
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    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0092—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption with use of redundant elements for safety purposes
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0084—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to control modules
    • 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
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/20—DC electrical machines
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/46—Drive Train control parameters related to wheels

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

PURPOSE: A safety circuit of an electronic controller for an anti-lock wheel device is provided to operate a brake in an abnormal state by checking operating states of the first and the second micro controllers. CONSTITUTION: The first micro controller(12) outputs the first solenoid valve block driving signal, a DC motor(3) driving signal, and the first pulse signal. The second micro controller(13) outputs the second solenoid valve block driving signal and second pulse signal. A micro controller monitoring circuit(11) is used for monitoring each operating state of the first and the second micro controllers(12,13) and outputting a monitoring signal. The first AND gate(AND1) is used for combining the first and the second solenoid valve block driving signals to each other. The second AND gate(AND2) is used for outputting a driving signal for driving a relay(17). The relay(17) is used for interrupting the power supplied to the solenoid valve block(2). The third AND gate(AND3) is used for outputting a driving signal for driving a relay(18). The relay(18) is used for interrupting the power supplied to the DC motor(3).

Description

차륜잠김 방지장치 전자제어기의 안전회로{Safety circuit for electronic controller of wheel lock prevention device}Safety circuit for electronic controller of wheel lock prevention device

본 발명은 차륜잠김 방지장치 전자제어기의 안전회로에 관한 것으로서, 더욱 상세하게는 차륜잠김 방지장치의 동작을 제어하는 마이크로 콘트롤러의 고장 혹은 비정상적인 프로그램 수행시 차륜잠김 방지장치의 오동작을 방지하는 한편, 제동장치가 보통 브레이크로 작용하도록 하는 차륜잠김 방지장치 전자제어기의 안전회로에 관한 것이다.The present invention relates to a safety circuit of an electronic controller of a wheel lock prevention device, and more particularly, to prevent a malfunction of the wheel lock prevention device when a microcontroller controlling the operation of the wheel lock prevention device or an abnormal program is executed, while braking. It relates to a safety circuit of an electronic controller of a wheel lock prevention device which normally makes the device act as a brake.

종래에는 다수개의 솔레노이드 밸브로 구성된 솔레노이드 밸브블록이나, 직류모터를 특정 프로그램이 내장된 전자 제어기에 의해 제어하는 데, 이 전자 제어기의 마이크로 콘트롤러가 고장나거나, 혹은 프로그램을 비정상적으로 수행하게 되면, 이로 인하여 다수개의 솔레노이드 밸브와 직류모터가 오동작하게 되는 결점이 있다.Conventionally, a solenoid valve block composed of a plurality of solenoid valves or a direct current motor is controlled by an electronic controller in which a specific program is embedded. If the microcontroller of the electronic controller fails or an abnormal program is executed, Many solenoid valves and direct-current motors malfunction.

이러한 결점을 해결하기 위해 안출된 본 발명의 목적은 차륜잠김 방지장치의 동작을 제어하는 마이크로 콘트롤러의 고장 혹은 마이크로 콘트롤러가 비정상적으로 프로그램 수행시 차륜잠김 방지장치의 오동작을 방지하는 한편, 제동장치가 보통 브레이크로 작용하도록 하는 차륜잠김 방지장치 전자제어기의 안전회로를 제공하는 데 있다.An object of the present invention devised to solve this drawback is to prevent the malfunction of the microlock controller that controls the operation of the wheel lock prevention device or the malfunction of the wheel lock prevention device when the microcontroller abnormally performs the program, while the braking device is usually It is to provide a safety circuit of an electronic controller for a wheel lock prevention device to act as a brake.

상기한 바와같은 결점을 해결하기 위한 본 발명은 솔레노이드 밸브블록과 직류모터의 동작을 제어하는 제 1마이크로 콘트롤러와 제 2마이크로 콘트롤러의 동작상태를 확인하여 비정상 동작시 솔레노이드 밸브블록과 직류모터가 마이크로 콘트롤러에 의해 동작되지 않음으로써, 브레이크가 보통 브레이크로 작동되도록 함을 특징으로 한다.The present invention for solving the above-described drawbacks is to check the operating state of the first microcontroller and the second microcontroller to control the operation of the solenoid valve block and the DC motor microcontroller solenoid valve block and DC motor during abnormal operation It is characterized in that it is not operated by the brake, so that the brake is normally operated as a brake.

도 1은 본 발명에 따른 블록 구성도이다.1 is a block diagram according to the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1 : 배터리 2 : 솔레노이드 밸브블록1: Battery 2: Solenoid Valve Block

3 : 직류모터 10 : 전자 제어기3: DC motor 10: electronic controller

11 : 마이크로 콘트롤러 감시회로 12,13 : 마이크로 콘트롤러11: microcontroller monitoring circuit 12,13: microcontroller

AND1∼AND3 : 앤드 게이트 17 : 안전보증용 집적소자 릴레이AND1 to AND3: AND gate 17: Integrated safety relay for safety assurance

18 : 직류모터용 집적소자 릴레이18: integrated device relay for DC motor

이하 본 발명의 일 실시예에 따른 구성을 예시도면과 함께 보다 상세히 설명하면 다음과 같다.Hereinafter, the configuration according to an embodiment of the present invention in more detail with an exemplary drawing as follows.

도 1은 본 발명에 따른 차륜잠김 방지장치 전자제어기의 안전회로를 도시한블록 구성도로서, 솔레노이드 밸브블록 구동신호(VRD1)와 직류모터 구동신호(MRD)를 출력하는 한편, 정상 작동에 따른 펄스신호(WD1)를 출력하는 제 1마이크로 콘트롤러(12)와, 솔레노이드 밸브블록 구동신호(VRD2)를 출력하는 한편, 정상 작동에 따른 펄스신호(WD2)를 출력하는 제 2마이크로 콘트롤러(13)와, 펄스신호(WD1)(WD2)에 의해 제 1마이크로 콘트롤러(12)와 제 2마이크로 콘트롤러(13)의 동작상태를 감시하고, 그 결과에 따른 감시신호(SAS)를 출력하는 마이크로 콘트롤러 감시회로(11)와, 이 제 1마이크로 콘트롤러(12)와 제 2마이크로 콘트롤러(13)의 솔레노이드 밸브블록 구동신호(VRD1)(VRD2)를 조합하는 앤드 게이트(AND1)와, 이 앤드 게이트(AND1)의 출력과 마이크로 콘트롤러 감시회로(11)의 감시신호(SAS)를 조합하여 안전보증용 집적소자 릴레이(17)를 구동시키기 위한 구동신호를 출력하는 앤드 게이트(AND2)와, 이 앤드 게이트(AND2)의 출력으로 구동되어서 배터리(1)로부터 솔레노이드 밸브블록(2)에 공급되는 전원을 단속하는 안전보증용 집적소자 릴레이(17)와, 이 마이크로 콘트롤러 감시회로(11)의 감시신호와 제 1마이크로 콘트롤러(12)의 직류모터 구동신호(MRD)를 조합하여 직류모터용 집적소자 릴레이(18)를 구동시키기 위한 구동신호를 출력하는 앤드 게이트(AND3)와, 이 앤드 게이트(AND3)의 출력으로 구동되어서 배터리(1)로부터 직류모터(3)에 공급되는 전원을 단속하는 직류모터용 집적소자 릴레이(18)로 구성된다.1 is a block diagram showing a safety circuit of an electronic controller of a wheel lock preventing device according to the present invention, while outputting a solenoid valve block drive signal VRD1 and a DC motor drive signal MRD, and pulses according to normal operation. A first microcontroller 12 for outputting a signal WD1, a second microcontroller 13 for outputting a solenoid valve block drive signal VRD2, and outputting a pulse signal WD2 according to normal operation; The microcontroller supervisory circuit 11 which monitors the operation state of the 1st microcontroller 12 and the 2nd microcontroller 13 by the pulse signal WD1 and the WD2, and outputs the supervisory signal SAS according to the result. ), An AND gate AND1 which combines the solenoid valve block drive signals VRD1 and VRD2 of the first microcontroller 12 and the second microcontroller 13, and an output of the AND gate AND1. Of the microcontroller monitoring circuit 11 The AND gate AND2 outputs a driving signal for driving the safety assurance integrated device relay 17 by combining the supervisory signal SAS, and is driven by the output of the AND gate AND2, and the solenoid is driven from the battery 1. Integrated safety relay 17 for controlling the power supplied to the valve block 2, the monitoring signal of the microcontroller monitoring circuit 11 and the DC motor driving signal (MRD) of the first microcontroller 12 In combination with the AND gate AND3 for outputting a driving signal for driving the integrated element relay 18 for the DC motor, and is driven by the output of the AND gate AND3 to the DC motor 3 from the battery 1. It is composed of an integrated element relay 18 for a DC motor to interrupt the power supplied.

이와같이 구성된 본 발명의 동작을 설명한다.The operation of the present invention configured as described above will be described.

안전보증용 집적소자 릴레이(17)와 직류모터용 집적소자 릴레이(18)는 배터리(1)로부터 구동전원을 인가받아 동작하게 되는데, 입력핀(IN)이 "하이" 일 때 출력핀(OUT)이 "온" 되어 입력핀(IN)으로 입력되는 배터리(1)의 전원(VDD)이 그대로 출력핀(OUT)으로 출력된다. 반대로 입력핀(IN)이 "로우"일 때에는 출력핀(OUT)이 "오프"된다.The safety guarantee integrated device relay 17 and the DC motor integrated device relay 18 operate by receiving driving power from the battery 1, and the output pin OUT when the input pin IN is "high". The power supply VDD of the battery 1 input to the input pin IN is "on" and is output to the output pin OUT as it is. On the contrary, when the input pin IN is "low", the output pin OUT is "off".

제 1마이크로 콘트롤러(12)와 제 2마이크로 콘트롤러(13)는 정상 작동중일 때 각각 일정주기의 펄스신호(WD1)와 펄스신호(WD2)를 생성하여 마이크로 콘트롤러 감시회로(11)로 출력하며, 그러면 마이크로 콘트롤러 감시회로(11)는 감시신호(SAS)를 "하이"로 하여 앤드 게이트(AND2)의 앤드 게이트(3)의 입력단자와 제 1마이크로 콘트롤러(12) 및 제 2마이크로 콘트롤러(13)의 입력단자로 출력한다.The first microcontroller 12 and the second microcontroller 13 generate a pulse signal WD1 and a pulse signal WD2 of a predetermined period during normal operation, and output them to the microcontroller monitoring circuit 11. The microcontroller supervisory circuit 11 sets the supervisory signal SAS to " high " for the input terminal of the AND gate 3 of the AND gate AND2, and the first microcontroller 12 and the second microcontroller 13, respectively. Output to the input terminal.

반면에 제 1마이크로 콘트롤러(12) 혹은 제 2마이크로 콘트롤러(13)이 고장이거나, 그 프로그램 수행과정이 비정상일때는 일정주기의 펄스신호(WD1) 혹은 펄스신호(WD2)가 마이크로 콘트롤러 감시회로(11)로 출력되지 않아서 마이크로 콘트롤러 감시회로(11)는 감시신호(SAS)를 "로우"로 하여 앤드 게이트(AND2)(AND3)의 입력단와 제 1마이크로 콘트롤러(12) 및 제 2마이크로 콘트롤러(13)의 입력단자로 출력한다.On the other hand, when the first microcontroller 12 or the second microcontroller 13 is broken or the program execution process is abnormal, the pulse signal WD1 or the pulse signal WD2 of a predetermined period is the microcontroller monitoring circuit 11. The microcontroller supervisory circuit 11 sets the supervisory signal SAS to " low " so that the input terminal of the AND gate AND2 AND3 and the first microcontroller 12 and the second microcontroller 13 Output to the input terminal.

제 1마이크로 콘트롤러(12)와 제 2마이크로 콘트롤러(13)는 각각 주 마이크로 콘트롤러와 종 마이크로 콘트롤러로 작용하여, 제 1마이크로 콘트롤러(12)는 솔레노이드 밸브블록(2) 구동신호(VRD1)를 앤드 게이트(AND1)의 한 입력단에 출력하고, 제 2마이크로 콘트롤러(13)는 솔레노이드 밸브블록 구동신호(VRD2)를 앤드 게이트(AND1)의 다른 입력단에 출력한다. 그러므로 솔레노이드 밸브블록 구동신호(VRD1)와 구동신호(VRD2)가 모두 "하이" 일때만 앤드 게이트(AND1)이 출력단이 "하이"가 된다. 제 1마이크로 콘트롤러(12)는 또한 직류모터 구동신호(MRD)를 앤드 게이트(AND3)의 입력단에 입력한다.The first microcontroller 12 and the second microcontroller 13 function as the main microcontroller and the slave microcontroller, respectively, so that the first microcontroller 12 sends the gate signal of the solenoid valve block 2 driving signal VRD1. The second micro controller 13 outputs the solenoid valve block driving signal VRD2 to the other input terminal of the AND gate AND1. Therefore, the AND gate AND1 outputs "high" only when both the solenoid valve block drive signal VRD1 and the drive signal VRD2 are "high." The first microcontroller 12 also inputs the DC motor drive signal MRD to the input terminal of the AND gate AND3.

전자 제어기(10)가 차륜잠김 방지기능을 작동시킬 때, 제 1마이크로 콘트롤러(12)는 솔레노이드 밸브블록 구동신호(VRD1)를 "하이"로 출력하고, 제 2마이크로 콘트롤러(13)는 솔레노이드 밸브블록 구동신호(VRD2)를 "하이"로 출력하며, 이어서 제 1마이크로 콘트롤러(12)는 직류모터 구동신호(MRD)를 "하이"로 출력한다.When the electronic controller 10 activates the wheel lock prevention function, the first microcontroller 12 outputs the solenoid valve block drive signal VRD1 as "high", and the second microcontroller 13 outputs the solenoid valve block. The driving signal VRD2 is output as "high", and then the first micro controller 12 outputs the DC motor driving signal MRD as "high".

이 때 마이크로 콘트롤러 감시신호(SAS)가 "하이"이면, 앤드 게이트(AND2)의 출력단이 "하이"가 되어서 안전보증용 집적소자 릴레이(17)가 "온"되고, 배터리(1) 전원이 솔레노이드 밸브블록(2)에 공급된다. 또한, 앤드 게이트(AND3)의 출력단이 "하이"가 되어서 직류모터용 집적소자 릴레이(18)이 "온"되고, 배터리(1) 전원이 직류모터(3)에 공급되어 직류모터(3)가 회전한다.At this time, when the microcontroller monitoring signal SAS is "high", the output terminal of the AND gate AND2 becomes "high" so that the integrated safety relay 17 for the security guarantee is "on" and the power supply of the battery 1 is solenoid. It is supplied to the valve block (2). In addition, the output terminal of the AND gate AND3 becomes "high" so that the integrated element relay 18 for the DC motor is "ON", and the battery 1 power is supplied to the DC motor 3 so that the DC motor 3 Rotate

그렇지만, 마이크로 콘트롤러 감시신호(SAS)가 "로우"이면, 앤드 게이트(AND2)의 출력단이 "로우"가 되어서 안전보증용 집적소자 릴레이(17)가 "오프" 되어서 솔레노이드 밸브블록(2)에서 배터리(1) 전원이 차단된다. 또한, 앤드 게이트(AND3)의 출력단이 "로우"가 되어서 직류모터용 집적소자 릴레이(18)가 "오프" 되므로 배터리(1) 전원이 직류모터(3)에 공급되지 않아서, 직류모터(3)는 회전하지 않는다. 이에따라 제동장치는 보통 브레이크로 작용한다.However, when the microcontroller supervisory signal SAS is "low", the output terminal of the AND gate AND2 becomes "low", and the safety guarantee integrated element relay 17 is "off" and the battery in the solenoid valve block 2 is turned off. (1) Power is cut off. In addition, since the output terminal of the AND gate AND3 becomes "low" and the integrated element relay 18 for the DC motor is "off", the power of the battery 1 is not supplied to the DC motor 3, so that the DC motor 3 Does not rotate. Accordingly, the braking system usually acts as a brake.

이상에서와 같이 본 발명은 솔레노이드 밸브블록과 직류모터의 동작을 제어하는 제 1마이크로 콘트롤러와 제 2마이크로 콘트롤러의 정상 동작여부를 확인하여비정상 동작시 솔레노이드 밸브블록과 직류모터에 공급되는 배터리의 출력전원을 차단함으로써, 마이크로 콘트롤러가 비정상 동작시 제동장치가 보통 브레이크로 작용할 수 있다.As described above, the present invention checks the normal operation of the first microcontroller and the second microcontroller for controlling the operation of the solenoid valve block and the DC motor, and the output power of the battery supplied to the solenoid valve block and the DC motor during abnormal operation. By blocking, the braking system can normally act as a brake when the microcontroller is abnormally operated.

Claims (2)

솔레노이드 밸브블록 구동신호(VRD1)와 직류모터 구동신호(MRD)를 출력하는 한편, 정상 작동에 따른 펄스신호(WD1)를 출력하는 제 1마이크로 콘트롤러(12)와;A first micro controller 12 outputting the solenoid valve block drive signal VRD1 and the DC motor drive signal MRD, and outputting a pulse signal WD1 according to normal operation; 솔레노이드 밸브블록 구동신호(VRD2)를 출력하는 한편, 정상 작동에 따른 펄스신호(WD2)를 출력하는 제 2마이크로 콘트롤러(13);A second microcontroller 13 outputting the solenoid valve block drive signal VRD2 and outputting a pulse signal WD2 according to normal operation; 펄스신호(WD1)(WD2)에 의해 제 1마이크로 콘트롤러(12)와 제 2마이크로 콘트롤러(13)의 동작상태를 감시하고, 그 결과에 따른 감시신호(SAS)를 출력하는 마이크로 콘트롤러 감시회로(11);The microcontroller supervisory circuit 11 which monitors the operation state of the 1st microcontroller 12 and the 2nd microcontroller 13 by the pulse signal WD1 and the WD2, and outputs the supervisory signal SAS according to the result. ); 이 제 1마이크로 콘트롤러(12)와 제 2마이크로 콘트롤러(13)의 솔레노이드 밸브블록 구동신호(VRD1)(VR2)를 조합하는 앤드 게이트(AND1);An AND gate AND1 for combining the solenoid valve block drive signals VRD1 and VR2 of the first microcontroller 12 and the second microcontroller 13; 이 앤드 게이트(AND1)의 출력과 마이크로 콘트롤러 감시회로(11)의 감시신호(SAS)를 조합하여 안전보증용 집적소자 릴레이(17)를 구동시키기 위한 구동신호를 출력하는 앤드 게이트(AND2);An AND gate AND2 for outputting a driving signal for driving the integrated safety relay 17 for safety by combining the output of the AND gate AND1 and the supervisory signal SAS of the microcontroller supervisor circuit 11; 이 앤드 게이트(AND2)의 출력으로 구동되어서 배터리(1)로부터 솔레노이드 밸브블록(2)에 공급되는 전원을 단속하는 안전보증용 집적소자 릴레이(17);An integrated safety relay 17 for driving the output of the AND gate AND2 to interrupt the power supplied from the battery 1 to the solenoid valve block 2; 마이크로 콘트롤러 감시회로(11)의 감시신호와 제 1마이크로 콘트롤러(12)의 직류모터 구동신호(MRD)를 조합하여 직류모터용 집적소자 릴레이(18)를 구동시키기 위한 구동신호를 출력하는 앤드 게이트(AND3);The AND gate outputting a driving signal for driving the integrated circuit relay 18 for a DC motor by combining the monitoring signal of the microcontroller monitoring circuit 11 and the DC motor driving signal MRD of the first microcontroller 12 ( AND3); 이 앤드 게이트(AND3)의 출력으로 구동되어서 배터리(1)로부터 직류모터(3)에 공급되는 전원을 단속하는 직류모터용 집적소자 릴레이(18)를 포함하여 구성되어짐을 특징으로 하는 차륜잠김 방지장치 전자제어기의 안전회로.And an integrated device relay (18) for direct current motor which is driven by the output of the AND gate (AND3) and intercepts the power supplied from the battery (1) to the direct current motor (3). Safety circuit of electronic controller. 제 1항에 있어서, 이 제 1마이크로 콘트롤러(12)와 제 2마이크로 콘트롤러(13)는 주종 마이크로 콘트롤러로 작동되어짐을 특징으로 하는 차륜잠김 방지장치 전자제어기의 안전회로.2. The safety circuit of an electronic controller of claim 1, wherein the first microcontroller (12) and the second microcontroller (13) are operated as a master or microcontroller.
KR1019970068452A 1997-12-13 1997-12-13 Safety circuit for electronic controller of wheel lock prevention device KR100357350B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100754139B1 (en) 2006-09-05 2007-08-31 지멘스 오토모티브 주식회사 Apparatus for controlling accessaries of car

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100754139B1 (en) 2006-09-05 2007-08-31 지멘스 오토모티브 주식회사 Apparatus for controlling accessaries of car

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