KR100224169B1 - Display of road angle changing and safety device on the uphill road driving - Google Patents

Display of road angle changing and safety device on the uphill road driving Download PDF

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Publication number
KR100224169B1
KR100224169B1 KR1019950053405A KR19950053405A KR100224169B1 KR 100224169 B1 KR100224169 B1 KR 100224169B1 KR 1019950053405 A KR1019950053405 A KR 1019950053405A KR 19950053405 A KR19950053405 A KR 19950053405A KR 100224169 B1 KR100224169 B1 KR 100224169B1
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South Korea
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road
uphill
vehicle speed
vehicle
sensor
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KR1019950053405A
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Korean (ko)
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KR970036126A (en
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이진우
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정몽규
현대자동차주식회사
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    • 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
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
    • B60W40/06—Road conditions
    • B60W40/076—Slope angle of the road
    • 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
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • 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
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
    • B60W40/105—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
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/44—Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/60—Inputs being a function of ambient conditions
    • F16H59/66—Road conditions, e.g. slope, slippery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
    • F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/21—Providing engine brake control
    • 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
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • B60W2050/143—Alarm means
    • 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
    • B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
    • B60W2420/54—Audio sensitive means, e.g. ultrasound
    • 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
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal 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
    • B60W2552/00—Input parameters relating to infrastructure
    • B60W2552/15—Road slope, i.e. the inclination of a road segment in the longitudinal direction
    • 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
    • B60Y2400/303—Speed sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/60—Inputs being a function of ambient conditions
    • F16H59/66—Road conditions, e.g. slope, slippery
    • F16H2059/663—Road slope

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mathematical Physics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Human Computer Interaction (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Control Of Transmission Device (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

본 발명은 차량의 주행 안전장치에 관한 것으로써, 오르막길 주행시 갑작스런 노면경사각 변화를 운전자에게 알려주고 자동변속기의 기어단을 쉬프트 다운시켜 안전운행을 도모하기 위한 것이다. 본 발명은 오르막길 판정을 위한 경사각 센서와, 차속을 산출하기 위한 차속센서와, 차량전방의 노면상태를 탐지하기 위한 초음파 송수신센서의 출력을 자동변속기 제어장치의 입력단에 연결하고, 계산된 노면경사각이 일정각도 이상이고, 차속이 일정속도를 초과한 상태에서 초음파 반사거리가 소정거리 이상인 것을 검출하였을 때 제어장치의 출력단에 연결된 부저를 작동하고 변속기 유압제어장치에 쉬프트 다운 제어신호를 보내 엔진 브레이크가 작동되게 한 것을 특징으로 한다.The present invention relates to a driving safety device for a vehicle. The present invention is to notify a driver of a sudden change of a road inclination angle when driving uphill and to shift down the gear stage of an automatic transmission for safe driving. The present invention connects the inclination angle sensor for determining the uphill, the vehicle speed sensor for calculating the vehicle speed, and the output of the ultrasonic transmission / reception sensor for detecting the road surface condition in front of the vehicle to the input of the automatic transmission control device, When it detects that the ultrasonic reflection distance is more than the predetermined distance while the vehicle speed exceeds the certain speed and operates the buzzer connected to the output of the control device, the engine brake is activated by sending a shift-down control signal to the transmission hydraulic control device. It is characterized in that.

Description

오르막길 주행중 노면각도변경 알림 및 안전장치Road angle change notification and safety device while driving uphill

제1도는 본 발명에 따른 경보시스템의 전기회로도.1 is an electrical circuit diagram of an alarm system according to the present invention.

제2도는 제1도 전자제어장치의 동작을 나타내는 플로우차트.2 is a flowchart showing the operation of the electronic control apparatus of FIG.

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

2 : 경사각센서 3 : 차속센서2: tilt angle sensor 3: vehicle speed sensor

5 : 초음파수신센서 10 : 변속기 제어장치(TCU)5: ultrasonic receiving sensor 10: transmission control unit (TCU)

12 : 유압제어장치 15 : 부저12: hydraulic control device 15: buzzer

본 발명은 차량의 주행 안전장치에 관한 것으로, 특히 오르막길 주행시 갑작스런 노면경사각 변화를 운전자에게 알려주고 자동변속기의 기어단을 쉬프트 다운시켜 안전운행을 도모하기 위한 오르막길 주행중 노면각도변경 알림 및 안정장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving safety device for a vehicle, and more particularly, to a road safety angle change notification and a stabilizer for informing a driver of a sudden change of the road inclination angle when driving uphill and shifting down the gear stage of an automatic transmission to promote safe driving. .

일반적으로 차량이 오르막길 주행시 가속이 붙으면 악셀 페달을 밟아 일정속도를 유지한채 고개마루를 넘게 되는 예가 빈번하게 되고, 이때 앞 시야가 확보되지 않아 갑작스런 노면 경사각도 변화시 차체에 충격이 오고, 전방 장애물을 발견하고도 미처 제동을 하지 못해 추돌사고에 이르게 되는 등 안전운행에 어려움이 있게 된다.In general, if the vehicle is accelerating when driving uphill, there is a frequent case that the driver pushes the axel pedal and keeps a constant speed and goes over the hilltop.In this case, the front view is not secured, and when the sudden change of the inclination angle suddenly changes the vehicle body, Even if it finds it, it can't brake so it leads to a crash accident.

따라서, 본 발명의 목적은 주행중 미리 노면각도를 감지하고 경사각의 변화를 미리 검출하여 A/T차량에서 엔젠브레이크를 작동시키고 운전자에게 경고신호를 주어 안전운행에 도움을 줄 수 있는 오르막길 주행중 노면각도변경 알림 및 안전장치를 제공하기 위한 것이다.Accordingly, an object of the present invention is to change the road surface angle during driving uphill that detects the road angle in advance while driving and detects the change of the inclination angle in advance to operate the engine brake in the A / T vehicle and give a warning signal to the driver. To provide alerts and safeguards.

본 발명에 따르면, 오르막길 판정을 위한 경사각 센서와, 차속을 산출하기 위한 차속센서와, 차량전방의 노면상태를 탐지하기 위한 초음파 송수신센서의 출력을 자동변속기 제어장치의 입력단에 연결하고, 계산된 노면경사각이 일정각도 이상이고, 차속이 일정속도 초과한 상태에서 초음파 반사거리가 소정거리 이상인 것을 검출하였을 때 제어장치의 출력단에 연결된 부저를 작동하고 변속기 유압제어장치에 쉬프트 다운 제어신호를 보내 엔진 브레이크가 작동되게 한 것을 특징으로 하는 오르막길 주행중 노면각도변경 알림 및 안정장치가 제공된다.According to the present invention, an inclination angle sensor for determining an uphill road, a vehicle speed sensor for calculating a vehicle speed, and an output of an ultrasonic transmission / reception sensor for detecting a road surface condition in front of the vehicle are connected to an input terminal of an automatic transmission control device, and the calculated road surface When it detects that the inclination angle is over a certain angle and the vehicle speed exceeds a certain speed and the ultrasonic reflection distance is over the predetermined distance, the buzzer connected to the output of the control device is operated and the shift down control signal is sent to the transmission hydraulic control device so that the engine brake A road surface angle change notification and a stabilizer are provided during driving on an uphill road.

본 발명의 실시예에서, 상기 전자제어장치에서 수행하는 오르막길 판정은 경사각 5°이상에서 이루어지고, 차량속도 60㎞이상에서 반응하며, 노면으로부터 반사되는 초음파 반사거리의 한계치를 15m로 설정한 것을 특징으로 한다.In an embodiment of the present invention, the uphill determination performed by the electronic controller is performed at an inclination angle of 5 ° or more, reacts at a vehicle speed of 60 km or more, and sets a threshold value of the ultrasonic reflection distance reflected from the road surface to 15 m. It is done.

이하 첨부도면을 참고하여 본 발명의 일 실시예에 대해 상세히 설명한다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

제1도를 참조하면, 본 발명에 따른 오르막길 주행중 노면각도변경 알림 및 안전장치의 전체 시스템 구성이 도시되어 있다.Referring to FIG. 1, there is shown the overall system configuration of the road surface angle change notification and safety device while driving uphill in accordance with the present invention.

변속기 전자제어장치(10)의 입력단에 차량에 설치된 경사각 센서(2)와, 차속센서(3) 및 차량전방의 노면상태를 탐지하도록 설치된 초음파 송수신센서(5)의 신호출력단을 연결하고, 그 출력단에 통상의 자동변속기 유압제어장치(12) 및 경보부저(15)를 연결하여서 된 것이다.Connect the inclination angle sensor 2 installed in the vehicle to the input terminal of the transmission electronic control device 10 and the signal output terminal of the vehicle speed sensor 3 and the ultrasonic transceiving sensor 5 installed to detect the road surface condition in front of the vehicle, and the output stage Is connected to a normal automatic transmission hydraulic control device 12 and the alarm buzzer 15 to.

상기 초음파송수신센서(5)는 차량 앞범퍼부근에 설치되고 통상 설치각도를 5°하향시켜 10m 전방의 물체를 탐지한다.The ultrasonic transmission and reception sensor 5 is installed near the front bumper of the vehicle, and detects an object 10 m in front of the installation angle of 5 ° downward.

상기 압전부저(15)는 전자제어장치(10)의 출력단에서 발생하는 구동전압을 받아 경보음을 발생하는 피에조 부저를 사용한다.The piezoelectric buzzer 15 uses a piezo buzzer that generates an alarm sound by receiving a driving voltage generated at the output terminal of the electronic control apparatus 10.

이와같은 구성에서, 전자제어장치(10)는 제 2 도의 동작프로그램에 나타낸 바와 같이 입력된 각 센서의 신호로부터 노면경사각과 차속 및 노면의 초음파 반사거리를 산출한다. 전자제어장치(10)는 산출된 노면경사각이 5°이상이고, 차속이 60㎞를 초과했을 때, 차량전방에서 초음파센서의 반사거리가 15m이상인 것을 검출하게 되면 오르막길 주행중 과속으로 오르막 정상부근에 도달하였음을 인지하여 그 출력단에 연결된 부저(15)에 구동전압을 인가하고, 변속기 유압제어장치(12)에 자동변속기의 쉬프트다운 제어신호를 송출하여 엔진 부르에크 동작모드로 운행하게 만든다.In such a configuration, the electronic control apparatus 10 calculates the road inclination angle, the vehicle speed and the ultrasonic reflection distance of the road surface from the signals of the respective sensors input as shown in the operation program of FIG. When the calculated road slope angle is 5 ° or more, and the vehicle speed exceeds 60 km, the electronic controller 10 detects that the reflection distance of the ultrasonic sensor is 15 m or more from the front of the vehicle, and reaches the top of the hill when the road is uphill. Recognizing that the drive voltage is applied to the buzzer 15 connected to the output terminal, and transmits the shift-down control signal of the automatic transmission to the transmission hydraulic control device 12 to run in the engine Bourke operating mode.

이상 설명한 바와 같이 본 발명에 의하면, 경사각 센서 및 초음파송수신 센서로부터 오르막길 판별 및 경사각 변화를 판단하여 과속으로 주행할 때 경보음 발생 및 자동변속기 차량에서 강제로 엔진브레이크를 작동시켜 차량속도가 감소하게 함으로써 오르막길 주행시 안전운행에 도움을 줄 수 있게되는 이점이 있다.As described above, according to the present invention, by determining the uphill road and the change of the inclination angle from the inclination angle sensor and the ultrasonic transmitting / receiving sensor, an alarm sound is generated when the vehicle is traveling at a high speed, and by forcibly operating the engine brake in the automatic transmission vehicle to reduce the vehicle speed. There is an advantage that can help to drive safely when driving uphill.

Claims (2)

오르막길 판정을 위한 경사각 센서와, 차속을 산출하기 위한 차속센서와, 차량전방의 노면상태를 탐지하기 위한 초음파 송수신센서의 출력을 자동변속기 제어장치의 입력단에 연결하고, 계산된 노면경사각이 일정각도 이상이고, 차속이 일정속도를 초과한 상태에서 초음파 반사거리가 소정거리 이상인 것을 검출하였을 때 제어장치의 출력단에 연결된 부저를 작동하고 변속기 유압제어장치에 쉬프트 다운 제어신호를 보내 엔진 브레이크가 작동되게 한 것을 특징으로 하는 오르막길 주행중 노면각도변경 알림 및 안전장치.The inclination angle sensor for determining the uphill road, the vehicle speed sensor for calculating the vehicle speed, and the output of the ultrasonic transmission / reception sensor for detecting the road surface condition in front of the vehicle are connected to the input of the automatic transmission control device, and the calculated road slope angle is more than a certain angle. When the ultrasonic speed exceeds a predetermined distance when the vehicle speed exceeds a certain speed, the buzzer connected to the output of the control unit is operated and the shift control signal is transmitted to the transmission hydraulic control unit to activate the engine brake. Road angle change notification and safety device while driving uphill. 제1항에 있어서, 상기 전자제어장치에서 수행하는 오르막길 판정은 경사각 5°이상에서 이루어지고, 차량속도 60㎞이상에서 반응하며, 노면으로부터 반사되는 초음파 반사거리의 한계치를 15m로 설정한 것을 특징으로 하는 오르막길 주행중 노면각도변경 알림 및 안전장치.The method of claim 1, wherein the uphill road determination performed by the electronic controller is performed at an inclination angle of 5 ° or more, reacts at a vehicle speed of 60 km or more, and sets a threshold value of the ultrasonic reflection distance reflected from the road surface to 15 m. Road angle change notification and safety devices while driving uphill.
KR1019950053405A 1995-12-21 1995-12-21 Display of road angle changing and safety device on the uphill road driving KR100224169B1 (en)

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KR100471044B1 (en) * 1996-12-31 2005-06-17 현대자동차주식회사 Safe way of slope
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