KR19990050674A - Drive driver of electronically controlled brake required for intelligent cruise control - Google Patents
Drive driver of electronically controlled brake required for intelligent cruise control Download PDFInfo
- Publication number
- KR19990050674A KR19990050674A KR1019970069808A KR19970069808A KR19990050674A KR 19990050674 A KR19990050674 A KR 19990050674A KR 1019970069808 A KR1019970069808 A KR 1019970069808A KR 19970069808 A KR19970069808 A KR 19970069808A KR 19990050674 A KR19990050674 A KR 19990050674A
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- South Korea
- Prior art keywords
- signal
- brake
- solenoid
- microcomputer
- pressure sensor
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Classifications
-
- 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
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
-
- 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
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K2031/0091—Speed limiters or speed cutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/30—Sensors
- B60Y2400/306—Pressure sensors
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Regulating Braking Force (AREA)
- Controls For Constant Speed Travelling (AREA)
Abstract
본 발명은 브레이크를 전자적으로 제어하며 브레이크 제어를 위해 구동하는 솔레노이드 신호가 정확하게 인가되는지를 검출하는 장치를 구비하여 브레이크 제어가 이루어지도록 하여 지능형 정속 주행(intelligent cruise control:ICC) 기능을 안정되게 수행하도록 하기 위하여, 지능형 정속 주행 장치에 있어서, 브레이크의 동작상태를 제어하기 위하여 마이컴에서 출력되는 펄스 신호를 구동하는 솔레노이드 구동부와; 상기 솔레노이드 구동부의 신호에 의해 브레이크의 동작상태 가변 상황을 검출하는 압력 센서와; 상기 압력센서에 전류를 제공하는 정전압 형성부와; 상기 압력 센서로부터 출력되는 압력 신호의 차를 비교하여 그 차에 대한 신호를 증폭하여 마이컴으로 출력하는 신호 증폭부로 이루어지는 자동차의 정속 주행 장치에 관한 것이다.The present invention includes a device that electronically controls the brake and detects whether the solenoid signal driving for the brake control is correctly applied so that the brake can be controlled so as to stably perform the intelligent cruise control (ICC) function. In order to control the intelligent constant speed driving apparatus, Solenoid drive unit for driving the pulse signal output from the microcomputer to control the operating state of the brake; A pressure sensor detecting a variable state of an operation state of the brake according to a signal of the solenoid driver; A constant voltage forming unit providing a current to the pressure sensor; The present invention relates to a constant speed traveling device for a vehicle including a signal amplifier for comparing the difference between the pressure signals output from the pressure sensor and amplifying a signal for the difference and outputting the signal to the microcomputer.
Description
본 발명은 자동차의 지능형 정속 주행 모드에서 앞차와의 거리를 일정하게 유지하는 가감속 제어를 자동으로 할 수 있도록 하는 자동차의 지능형 정속 주행 (intelligent cruise control:ICC)시스템에 관한 것이다.The present invention relates to an intelligent cruise control (ICC) system of a vehicle which enables automatic acceleration / deceleration control to maintain a constant distance from the vehicle in the intelligent constant speed driving mode of the vehicle.
근래에 들어 상기 정속 주행 기능을 좀더 지능화하여 앞차와의 거리를 감지하여 차간거리가 좁다고 판단되면 브레이크를 구동하는 신호를 출력하여 앞차와의 거리를 일정하게 유지할 수 있도록 그 기능을 첨가하려는 노력이 진행되고 있다.In recent years, the intelligent driving function has been further intelligentized to detect the distance to the vehicle ahead, and when the distance between the vehicles is determined to be small, an effort to add the function to output the signal for driving the brake to maintain the distance from the vehicle ahead is constant. It's going on.
상기와 같이 앞차와의 거리에 따라 브레이크를 구동하려면 브레이크 구동을 위한 구동 엑추에이터가 필요하고 브레이크 구동을 정확하게 수행하고 있는지를 판단하기 위한 검출장치가 필요하다.As described above, in order to drive the brake according to the distance to the vehicle ahead, a driving actuator for driving the brake is required, and a detection device for determining whether the brake driving is performed correctly is required.
본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 브레이크 구동 드라이버와 브레이크 제어가 의도한대로 정확하게 수행되는지를 검출하는 장치를 구비하여 브레이크 제어가 정확하게 수행되어 지능형 정속 주행 기능을 안정되게 수행할 수 있도록 하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and includes a brake driving driver and a device for detecting whether the brake control is performed correctly as intended. The purpose is to make it.
도 1은 본 발명의 실시예에 따른 전자 제어 솔레노이드 구동 장치에 관한 회로도이다.1 is a circuit diagram of an electronic control solenoid drive device according to an embodiment of the present invention.
상기한 목적을 달성하기 위하여 본 발명은The present invention to achieve the above object
자동차의 지능형 정속 주행 장치에 있어서,In the intelligent constant speed driving device of a car,
브레이크의 동작상태를 제어하기 위하여 마이컴에서 출력되는 펄스 신호를 구동하는 솔레노이드 구동부와;A solenoid driver for driving a pulse signal output from the microcomputer to control an operation state of the brake;
상기 솔레노이드 구동부의 신호에 의해 브레이크의 동작상태 가변 상황을 검출하는 압력 센서와;A pressure sensor detecting a variable state of an operation state of the brake according to a signal of the solenoid driver;
상기 압력센서에 전류를 제공하는 정전압 형성부와;A constant voltage forming unit providing a current to the pressure sensor;
상기 압력 센서로부터 출력되는 압력 신호의 차를 비교하여 그 차에 대한 신호를 증폭하여 마이컴으로 출력하는 신호 증폭부로 이루어지는 것을 특징으로 한다.Comparing the difference between the pressure signal output from the pressure sensor and amplifies the signal for the difference characterized in that it comprises a signal amplifier for outputting to the microcomputer.
이하, 첨부된 도면을 참조로 하여 본 발명의 가장 바람직한 실시예를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the most preferred embodiment of the present invention.
본 발명의 구성을 도 1을 참고로 하여 설명하면 다음과 같다.Referring to the configuration of the present invention with reference to Figure 1 as follows.
브레이크의 동작상태를 제어하기 위하여 마이컴(10)에서 출력되는 펄스 신호를 구동하는 솔레노이드 구동부(20)와, 상기 솔레노이드 구동부(20)의 신호에 의해 브레이크의 동작상태 가변 상황을 검출하는 압력 센서(51,52)와, 상기 압력 센서(51,52)에 전류를 제공하는 정전압 형성부(30)와, 상기 압력 센서(51,52)로부터 출력되는 압력 신호의 차를 비교하여 그 차에 대한 신호를 증폭하여 마이컴(10)으로 출력하는 신호 증폭부(40)로 이루어진다.Solenoid drive unit 20 for driving the pulse signal output from the microcomputer 10 to control the operation state of the brake, and the pressure sensor 51 for detecting the variable operating state of the brake by the signal of the solenoid drive unit 20 52 compares the difference between the constant voltage forming unit 30 that provides current to the pressure sensors 51 and 52, and the pressure signal output from the pressure sensors 51 and 52, and provides a signal for the difference. It consists of a signal amplifier 40 for amplifying and outputting to the microcomputer 10.
상기 솔레노이드 구동부(20)는 마이컴(10)에서 출력되는 펄스 신호를 임시 저장하는 버퍼(b)와, 버퍼(b)를 통하여 인가되는 펄스 신호를 서지 방지 및 스위칭하기 위하여 구비되는 포토 커플러(P.C)와, 포토 커플러(P.C)의 출력신호에 따라 온/오프상태가 스위칭되는 트랜지스터(T)와, 트랜지스터(T) 온상태에 전류가 인가되는 솔레노이드(SOL)와, 솔레노이드(SOL)의 양단에 서지 보호용으로 다이오드(D21)가 연결되어 있다.The solenoid driver 20 is a buffer (b) for temporarily storing the pulse signal output from the microcomputer 10, and a photo coupler (PC) is provided to prevent and switch the surge signal applied through the buffer (b) And a transistor T whose on / off state is switched according to the output signal of the photo coupler PC, a solenoid SOL to which current is applied to the transistor T on state, and surges at both ends of the solenoid SOL. The diode D21 is connected for protection.
정전압 형성부(30)는 전원(12V)을 분압하는 저항단(R31,R32,R33)과, 저항단(R31,R32,R33)을 통하여 분압되어 인가되는 전류를 증폭하는 OP-AMP(A31)와, 일정 전압까지의 전류를 축적하는 제너 다이오드(Z.D)와, 제너 다이오드(Z.D)의 전류를 인가받아 턴온/턴오프 상태가 가변되는 트랜지스터(T31,T32,T33)로 이루어진다.The constant voltage forming unit 30 divides the resistor terminals R31, R32, and R33 for dividing the power supply 12V, and the OP-AMP A31 for amplifying the current applied by dividing the resistor terminals R31, R32, and R33. And a Zener diode ZD that accumulates a current up to a predetermined voltage, and transistors T31, T32, and T33 whose turn-on / turn-off states are changed by applying a current from the Zener diode ZD.
상기와 같이 이루어지는 본 발명의 동작을 설명하면 다음과 같다.Referring to the operation of the present invention made as described above are as follows.
우선 운전자가 정속 주행을 하기 위하여 차량을 정속 주행으로 세트하면 가속 페달(미도시)과 브레이크 페달(미도시)의 동작이 없이도 마이컴(10)에서의 전반적인 주행 판단을 시작한다.First, when the driver sets the vehicle to the constant speed driving to perform the constant speed driving, the overall driving determination in the microcomputer 10 is started without the operation of the accelerator pedal and the brake pedal (not shown).
특히 차간 거리 유지를 위하여 차간 거리 센서(미도시)로부터 인가되는 신호를 통하여 차간 거리가 설정값보다 큰 것으로 판독되면 즉 찻간거리가 너무 좁아 감속을 해야한다고 판단되면 마이컴(10)에서 제동을 위하여 브레이크 작동 신호를 출력한다.In particular, when the distance is read as greater than the set value through a signal applied from the distance sensor (not shown) to maintain the distance, that is, when the distance is too narrow to decelerate, the microcomputer 10 brakes for braking. Output the operation signal.
이때 마이컴(10)에서 출력하는 신호는 펄스폭 변조 방식(PWM)에 의한 펄스 신호이다.At this time, the signal output from the microcomputer 10 is a pulse signal by the pulse width modulation method (PWM).
따라서 솔레노이드 구동부(20)에 PWM신호가 출력되고, 이 펄스 신호는 버퍼(b)를 통하여 포토 커플러(P.C)의 광다이오드에 PWM의 온주기동안 전류를 인가한다.Accordingly, the PWM signal is output to the solenoid driver 20, and the pulse signal applies current to the photodiode of the photo coupler P.C through the buffer b during the on-cycle of the PWM.
따라서 광다이오드 턴온주기동안 수광 트랜지스터도 턴온상태가 되고 이에 따라 트랜지스터(T)도 턴온된다.Therefore, the phototransistor is turned on during the photodiode turn-on period, and thus the transistor T is turned on.
트랜지스터(T)가 턴온되는 주기동안 전원(Vb)이 도통하여 솔레노이드(SOL)에 전원이 인가된다.During the period in which the transistor T is turned on, the power supply Vb is turned on to supply power to the solenoid SOL.
따라서 마이컴(10)에서 브레이크 조작 신호를 출력하면 솔레노이드(SOL)에 전원이 인가되어 브레이크가 동작하게 된다.Therefore, when the brake operation signal is output from the microcomputer 10, the power is applied to the solenoid SOL to operate the brake.
그리고 브레이크 동작이 정확히 수행되었는지를 판단하기 위하여 압력센서(51,52)로부터 신호를 인가받는다.In addition, a signal is applied from the pressure sensors 51 and 52 to determine whether the brake operation is correctly performed.
이때 압력센서(51,52)는 정전압 형성부(30)로부터 제공되는 전류를 인가받는다.In this case, the pressure sensors 51 and 52 are applied with the current provided from the constant voltage forming unit 30.
그리고 압력센서(51,52)로부터 인가되는 신호는 신호 증폭부(40)를 통하여 마이컴(10)으로 인가된다.The signals applied from the pressure sensors 51 and 52 are applied to the microcomputer 10 through the signal amplifier 40.
따라서 마이컴(10)은 앞브레이크와 뒷브레이크의 실제 압력차를 연산하여 브레이크를 정확히 구동했을 때의 압력 차이값과 비교하여 브레이크 구동 상태를 판단한다.Therefore, the microcomputer 10 calculates the actual pressure difference between the front brake and the rear brake to determine the brake driving state by comparing the pressure difference value when the brake is correctly driven.
그러므로 브레이크의 오동작 여부를 알 수 있게된다.Therefore, it is possible to know whether the brake is malfunctioning.
본 발명은 정속 주행 시스템의 제동 동작을 전자적으로 가능하게 해주며 제동 동작 기능이 정확하게 이루어지고 있는지를 검출하므로써 정속 주행의 안정성을 확실하게 보장하는 효과가 있다.The present invention enables the braking operation of the constant speed traveling system electronically and has an effect of reliably guaranteeing the stability of the constant speed traveling by detecting whether the braking operation function is correctly performed.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970069808A KR100311153B1 (en) | 1997-12-17 | 1997-12-17 | Driving driver of electronic control brake for intelligent cruise control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970069808A KR100311153B1 (en) | 1997-12-17 | 1997-12-17 | Driving driver of electronic control brake for intelligent cruise control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19990050674A true KR19990050674A (en) | 1999-07-05 |
| KR100311153B1 KR100311153B1 (en) | 2002-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019970069808A KR100311153B1 (en) | 1997-12-17 | 1997-12-17 | Driving driver of electronic control brake for intelligent cruise control system |
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| Country | Link |
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| KR (1) | KR100311153B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100767252B1 (en) * | 2004-12-20 | 2007-10-17 | 혼다 기켄 고교 가부시키가이샤 | Braking device for motorcycle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07144618A (en) * | 1993-11-25 | 1995-06-06 | Mitsubishi Motors Corp | Brake energy regenerating device |
-
1997
- 1997-12-17 KR KR1019970069808A patent/KR100311153B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100767252B1 (en) * | 2004-12-20 | 2007-10-17 | 혼다 기켄 고교 가부시키가이샤 | Braking device for motorcycle |
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| Publication number | Publication date |
|---|---|
| KR100311153B1 (en) | 2002-01-17 |
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