KR20010056456A - Apparatus and method for cruise control of automobile - Google Patents

Apparatus and method for cruise control of automobile Download PDF

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Publication number
KR20010056456A
KR20010056456A KR1019990057916A KR19990057916A KR20010056456A KR 20010056456 A KR20010056456 A KR 20010056456A KR 1019990057916 A KR1019990057916 A KR 1019990057916A KR 19990057916 A KR19990057916 A KR 19990057916A KR 20010056456 A KR20010056456 A KR 20010056456A
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South Korea
Prior art keywords
speed
vehicle
constant speed
driver
driving
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KR1019990057916A
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Korean (ko)
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최석진
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이계안
현대자동차주식회사
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Priority to KR1019990057916A priority Critical patent/KR20010056456A/en
Publication of KR20010056456A publication Critical patent/KR20010056456A/en

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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
    • B60K31/02—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 including electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically
    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/14—Adaptive cruise 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
    • 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
    • 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
    • F16H61/02—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 characterised by the signals used
    • F16H61/0262—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 characterised by the signals used the signals being hydraulic
    • F16H61/0276—Elements specially adapted for hydraulic control units, e.g. valves
    • F16H61/029—Throttle valves
    • 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
    • B60K2310/00—Arrangements, adaptations or methods for cruise controls
    • B60K2310/20—Operator actuated switches or levers for cruise control or speed limiting systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00—Purposes or special features of road vehicle drive control systems
    • B60Y2300/14—Cruise control
    • B60Y2300/143—Speed control
    • 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
    • B60Y2400/3032—Wheel speed sensors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Controls For Constant Speed Travelling (AREA)

Abstract

PURPOSE: A cruise controller for a vehicle and the method thereof allows a driver to preset the cruise controlling speed of the vehicle before starting, thereby preventing an accident due to the operation of a cruise controlling key during running. CONSTITUTION: A driver selects a cruise controlling speed by operating a cruise controlling key. Then, the speed of a vehicle is perceived. If the perceived speed is faster than the selected cruise controlling speed, the vehicle is cruise controlled according to the selected cruise controlling speed. Thus, the driver does not need to operate the cruise controlling key to select a cruise controlling mode and speed. Therefore, an accident due to the operation of the cruise controlling key is prevented.

Description

차량의 정속주행장치 및 방법 {APPARATUS AND METHOD FOR CRUISE CONTROL OF AUTOMOBILE}Vehicle cruise control and method {APPARATUS AND METHOD FOR CRUISE CONTROL OF AUTOMOBILE}

본 발명은 차량의 정속주행장치 및 방법에 관한 것으로, 보다 상세하게는 운전 중에 별도의 스위치조작을 하지 않고도 미리 선택된 정속주행속도에 따라 차량을 정속주행시킬 수 있는 차량의 정속주행장치 및 방법에 관한 것이다.The present invention relates to a constant speed driving apparatus and a method of a vehicle, and more particularly, to a constant speed driving apparatus and method of a vehicle that can drive a vehicle at a constant speed according to a predetermined speed without a separate switch operation during driving. will be.

일반적으로, 차량의 정속주행장치는, 주행 중에 소망하는 주행속도에 도달하였을 때 세트스위치를 조작하면 이후에는 가속페달을 조작하지 않아도 설정된 정속주행속도로 정속 주행하도록 된 장치로서, 고속도로 등을 장시간 운전할 때 운전자의 피로를 경감할 수 있다.In general, a constant speed driving device of a vehicle is a device that operates a set switch when a desired driving speed is reached while driving, and then drives a constant speed at a set constant speed without a accelerator pedal. When the driver's fatigue can be reduced.

이러한 차량의 정속주행장치는, 정속주행모도를 온 또는 오프하기 위한 온/오프용 스위치와, 주행시에 정속주행모드를 세트하기 위한 세트스위치와, 세트된 정속주행속도를 취소하기 위한 세트취소용 스위치와, 차량의 속도를 감지하는 차속감지부와, 드로틀의 위치를 감지하는 드로틀위치감지부와, 상기 세트스위치에 의해 세트되는 정속주행속도로 차량을 정속수행시키도록 드로틀의 개도를 조절하기 위한 제어신호를 발생하는 제어부 및, 이 제어부로부터의 제어신호에 따라 드로틀의 개도를 조절하여 차량의 속도를 제어하는 드로틀개도조절부로 구성된다.The constant speed driving device of such a vehicle includes an on / off switch for turning the constant speed driving mode on or off, a set switch for setting the constant speed driving mode during driving, and a set canceling switch for canceling the set constant speed. And, a vehicle speed detecting unit for detecting the speed of the vehicle, a throttle position detecting unit for detecting the position of the throttle, and a control for adjusting the opening degree of the throttle to run the vehicle at a constant speed at a constant speed set by the set switch. A control unit for generating a signal, and a throttle opening degree adjusting unit for controlling the speed of the vehicle by adjusting the opening degree of the throttle according to the control signal from the control unit.

상기한 바와 같이 구성된 종래 차량의 정속주행장치의 동작과정은 하기와 같다.The operation process of the cruise control device of the conventional vehicle configured as described above is as follows.

먼저, 운전자가 차량에 시동을 건 다음, 주행을 하면서 온/오프스위치를 온으로 조작하면, 정속주행장치로 전원이 인가되어 정속주행장치가 작동 상태가 된다.First, when the driver starts the vehicle and then operates the on / off switch on while driving, power is supplied to the cruise control to operate the cruise control.

그 다음, 운전자가 속도계를 통해 차량의 속도를 확인하여 차량의 현재속도가 소망하는 정속주행속도이면 세트스위치를 누르게되는데, 이 세트스위치를 누른시점의 속도가 정속주행속도로 설정된다.Then, the driver checks the speed of the vehicle through the speedometer and presses the set switch when the current speed of the vehicle is the desired constant speed, and the speed at which the set switch is pressed is set as the constant speed.

즉, 정속주행장치의 제어부는 차속감지부를 통해 차량의 속도를 감지하고 있다가 운전자가 세트스위치를 누른 시점의 차속을 내장된 메모리에 기억시키고 정속주행모드로 전환한다.That is, the control unit of the cruise control device detects the speed of the vehicle through the vehicle speed detection unit, and stores the vehicle speed at the time when the driver presses the set switch in the built-in memory and switches to the constant speed driving mode.

상기와 같이 정속주행모드로 전환된 상태에서 제어부는 차속감지부를 통해 차속을 감지함과 더불어 드로틀위치감지부를 통해 드로틀의 위치를 감지하면서, 차속이 설정된 정속주행모드의 허용오차범위(예를 들면, ± 5km 정도)를 벗어나지 않도록 드로틀의 개도를 조절하기 위한 제어신호를 발생한다.As described above, the control unit detects the vehicle speed through the vehicle speed detecting unit and detects the position of the throttle through the throttle position detecting unit while the vehicle speed is set as described above. A control signal is generated to adjust the opening of the throttle so that it does not deviate from ± 5 km).

상기 제어부에서 발생된 제어신호는 드로틀개도조절부로 인가되고, 드로틀개도조절부에서는 제어부로부터의 제어신호에 따라 드로틀의 개도를 조절하여 엔진의 흡기량을 조절함으로써, 엔진의 출력을 가감하여 차량의 주행속도를 조절한다.The control signal generated by the control unit is applied to the throttle opening degree control unit, and the throttle opening degree adjusting unit adjusts the opening amount of the throttle according to the control signal from the control unit, thereby adjusting the intake air amount of the engine, thereby adjusting the output of the engine to increase and decrease the running speed of the vehicle. Adjust

그러나, 상기한 바와 같이 종래의 정속주행장치는, 차량의 주행 중에 운전자가 속도계를 통해 차량의 주행속도를 확인하면서 여러단계의 스위치조작을 통해 정속주행속도를 설정하도록 되어 있었기 때문에, 이용이 불편함은 물론, 운전 중 주의가 분산됨에 따라 사고의 위험이 있는 문제점이 있었다.However, as described above, the conventional cruise control device is inconvenient to use because the driver has to set the constant traveling speed through several steps of switch operation while the driver checks the traveling speed of the vehicle through the speedometer. Of course, there was a problem that there is a risk of accidents as distraction during driving.

따라서, 본 발명은 상기와 같은 종래기술의 문제점을 해결하기 위해 안출한 것으로, 차량을 주행하지 않는 상태에서 운전자가 미리 키조작을 통해 정속주행속도를 설정하면 그에 따라 차량을 정속주행시킴으로써, 이용이 편리하고 운전 중 키조작에 따른 사고의 위험을 미연에 예방할 수 있는 차량의 정속주행장치 및 방법을 제공하는 데에 그 목적이 있다.Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art, and when the driver sets the constant speed by using the key operation in advance without driving the vehicle, the vehicle is driven at constant speed accordingly. The object of the present invention is to provide a vehicle cruise control system and method that is convenient and can prevent the risk of an accident caused by key operation while driving.

도 1은 본 발명의 바람직한 실시예에 따른 차량의 정속주행장치에 대한 개략적인 블록구성도,1 is a schematic block diagram of a constant speed driving apparatus for a vehicle according to an exemplary embodiment of the present invention;

도 2는 도 1의 정속주행속도선택용 조작부에 포함된 정속주행속도선택키를 도시한 개략도,FIG. 2 is a schematic view showing a constant speed selection key included in the constant speed selection unit of FIG. 1;

도 3은 도 1에 도시된 제어부의 동작과정을 설명하기 위한 플로우챠트.FIG. 3 is a flowchart for describing an operation process of the controller shown in FIG. 1.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10: 정속주행속도선택용 조작부 20: 작동정지스위치10: operation part for constant driving speed 20: operation stop switch

30: 차속감지부 40: 드로틀위치감지부30: vehicle speed detection unit 40: throttle position detection unit

50: 제어부 60: 드로틀개도조절부50: control unit 60: throttle opening degree control unit

상기 목적을 달성하기 위한 본 발명에 따른 차량의 정속주행장치는, 차량의 정속주행속도를 선택할 수 있는 정속주행속도선택키가 구비하여 운전자가 상기 정속주행속도선택키를 조작해서 정속주행속도를 선택할 수 있게 한 정속주행속도선택용 조작부와, 차량의 속도를 감지하여 감지된 차량의 속도가 상기 주행속도선택용 조작부를 통해 운전자가 선택한 정속주행속도를 초과하면 상기 선택된 정속주행속도로 차량을 정속주행시키는 제어수단을 포함하여 구성된 것을 특징으로 한다.In order to achieve the above object, the constant speed driving apparatus of a vehicle includes a constant speed selection key capable of selecting a constant speed of the vehicle, and the driver selects the constant speed by operating the constant speed selection key. The control unit for the constant speed selection and the speed of the vehicle detected by detecting the speed of the vehicle exceeds the constant speed selected by the driver through the speed selection control unit. It characterized in that it comprises a control means for.

상기 목적을 달성하기 위한 본 발명에 따른 차량의 정속주행방법은, 운전자가 선택키를 조작하여 정속주행속도를 선택하는 스텝과, 차속을 감지하는 스텝과, 감지된 차속이 상기 선택된 정속주행속도를 초과하면 상기 선택된 정속주행속도에 따라 차량을 정속주행시키는 스텝으로 이루어진 것을 특징으로 한다.In order to achieve the above object, the constant speed driving method of a vehicle includes: a step of a driver selecting a constant speed by operating a selection key, a step of detecting a vehicle speed, and a detected vehicle speed of the selected constant speed; If it exceeds, characterized in that the step consisting of driving the vehicle at constant speed according to the selected constant speed.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 바람직한 실시예에 따른 차량의 정속주행장치에 대한 개략적인 블록구성도로서, 동도면을 참조하면 알 수 있듯이, 본 발명에 따른 차량의 정속주행장치는, 정속주행속도선택용 조작부(10)와 작동정지스위치(20)와 차속감지부(30)와 드로틀위치감지부(40)와 제어부(50)와 드로틀개도감지부(60)로 구성된다.1 is a schematic block diagram of a constant speed driving apparatus of a vehicle according to a preferred embodiment of the present invention, as can be seen with reference to the same figure, the constant speed driving apparatus of a vehicle for constant speed traveling speed selection The operation unit 10, the operation stop switch 20, the vehicle speed detecting unit 30, the throttle position detecting unit 40, the control unit 50, and the throttle opening degree detecting unit 60 are configured.

도 1에 있어서, 상기 정속주행속도선택용 조작부(10)는 차량을 주행하기 전에 운전자가 정속주행속도를 선택하기 위한 것으로, 도 2에 도시된 바와 같은 정속주행속도선택키(11)를 포함하고, 운전자가 상기 정속주행속도선택키(11)를 조작하여 정속주행속도를 선택하면 그에 상응하는 키신호를 발생하여 제어부(50)로 인가한다. 참고적으로, 상기 정속주행속도선택키(11)는 운전석에 가까운 대시보드의 소정위치에 설치하는 것이 바람직하다.In FIG. 1, the constant speed selection unit 10 is for the driver to select the constant speed before driving the vehicle, and includes a constant speed selection key 11 as shown in FIG. When the driver selects the constant speed by manipulating the constant speed selection key 11, the driver generates a corresponding key signal and applies the same to the controller 50. For reference, the constant speed selection key 11 is preferably installed at a predetermined position on the dashboard close to the driver's seat.

상기 작동정지스위치(20)는 정속주행모드를 해제하기 위한 스위치로서, 스티어링핸들 주위에 설치하는 것이 바람직하며, 운전자가 스위치를 조작하면 그에 상응하는 키신호를 발생하여 제어부(50)로 인가한다.The operation stop switch 20 is a switch for releasing the constant speed driving mode. The operation stop switch 20 is preferably installed around the steering wheel. When the driver operates the switch, a corresponding key signal is generated and applied to the controller 50.

상기 차속감지부(30)는 차량의 속도를 감지하여 그에 상응하는 차속신호를 제어부(50)로 인가하는 것으로, 엔진의 회전수를 감지하는 엔진회전수감지센서 또는 바퀴의 회전속도를 감지하는 휠속도감지센서 등을 사용할 수 있다.The vehicle speed detecting unit 30 detects the speed of the vehicle and applies a vehicle speed signal corresponding thereto to the controller 50, and the engine speed sensor or the wheel for detecting the rotation speed of the wheel to detect the rotation speed of the engine. Speed sensors can be used.

상기 드로틀위치감지부(40)는 엔진의 흡기량을 조절하는 드로틀의 위치를 감지하여 제어부(50)로 인가한다.The throttle position detecting unit 40 detects the position of the throttle for adjusting the intake amount of the engine and applies it to the controller 50.

상기 제어부(50)는 정속주행속도 조작부(10)로부터 인가되는 키신호에 의해 운전자가 선택한 정속주행속도를 판단하고 차속감지부(30)로부터 인가되는 차속감지신호에 의해 차속을 판단하여, 차속이 상기 운전자가 선택한 정속주행속도를 초과하면 드로틀의 개도를 조절하여 차속을 제어하기 위한 제어신호를 드로틀개도조절부(60)로 인가한다.The control unit 50 determines the constant driving speed selected by the driver based on a key signal applied from the driving speed control unit 10, and determines the vehicle speed by the vehicle speed detection signal applied from the vehicle speed detecting unit 30. When the driver exceeds the selected fixed speed, the controller applies a control signal to the throttle opening degree adjusting unit 60 to control the vehicle speed by adjusting the opening degree of the throttle.

상기 드로틀개도조절부(60)는 드로틀의 개도를 조절하기 위한 액츄에이터를 포함하고 제어부(50)로부터의 제어신호에 따라 상기 액츄에이터를 구동하여 드로틀의 개도를 조절한다.The throttle opening degree adjusting unit 60 includes an actuator for adjusting the opening degree of the throttle and drives the actuator according to a control signal from the controller 50 to adjust the opening degree of the throttle.

상기한 바와 같이 구성된 본 발명의 동작예를 도 1 내지 도 3을 참조하여 상세히 설명하기로 한다.An operation example of the present invention configured as described above will be described in detail with reference to FIGS. 1 to 3.

먼저, 차량에 시동이 걸려 배터리 또는 차량의 발전기로부터의 전원이 차량 전체로 공급되면, 제어부(50)를 포함한 정속주행장치의 각 구성부가 초기화된다(S10).First, when the vehicle is started and the power from the battery or the generator of the vehicle is supplied to the entire vehicle, each component of the cruise control apparatus including the controller 50 is initialized (S10).

초기화된 제어부(50)는 정속주행속도선택용 조작부(10)로부터 키신호가 인가되는지의 여부를 판단하는데(S20), 운전자가 정속주행속도선택용 조작부(10)의 정속주행속도선택키(11)를 조작하여 그 지침을 오프(OFF)상태에서 소망하는 속도의 표시점으로 셋팅하면, 운전자가 선택한 정속주행속도에 상응하는 키신호가 제어부(50)로 인가된다.The initialized control unit 50 determines whether a key signal is applied from the constant speed driving speed selection control unit 10 (S20), and the driver selects a constant speed speed selecting key 11 of the constant speed driving speed selecting operation unit 10. If the instruction is set to an indication point of a desired speed in the OFF state, a key signal corresponding to the constant speed selected by the driver is applied to the controller 50.

제어부(50)는 상기 정속주행속도선택용 조작부(10)로부터 인가되는 키신호에 의해 운전자가 선택한 정속주행속도를 판단하여, 판단된 정속주행속도를 소정의 기억수단(예를 들면, 제어부에 내장된 메모리 등)에 기억시킨다(S30).The controller 50 determines the constant speed selected by the driver based on the key signal applied from the constant speed speed selection operation unit 10, and stores the determined constant speed as predetermined memory means (for example, in the controller). Stored memory, etc.) (S30).

그리고, 제어부(50)는 차량의 속도를 감지하는데(S40), 차량이 주행상태인 경우 차속감지부(30)에서 차량의 주행속도에 상응하는 차속감지신호를 제어부(50)로 인가하고, 제어부(50)는 차속감지부(30)로부터 인가되는 차속감지신호에 의해 차속을 감지한다.In addition, the controller 50 detects the speed of the vehicle (S40). When the vehicle is in a driving state, the vehicle speed detection unit 30 applies a vehicle speed detection signal corresponding to the traveling speed of the vehicle to the controller 50. 50 detects the vehicle speed by the vehicle speed detection signal applied from the vehicle speed detection unit 30.

그 다음, 제어부(50)는 상기 스텝(S40)에서 감지된 현재 차속이 운전자가 선택한 정속주행속도를 비교하여(S50), 비교결과 현재 차속이 운전자에 의해 선택된 정속주행속도의 이하이면 상기 스텝(S40)으로 되돌아가 계속적으로 차속을 감지한다.Next, the controller 50 compares the constant speed of the vehicle selected by the driver to the current vehicle speed detected in the step S40 (S50). Returning to S40), the vehicle speed is continuously detected.

만약, 상기 스텝(S40)에서의 판단결과 차속이 운전자에 의해 선택된 정속주행속도를 초과하면 제어부(50)는 운전모드를 정속주행모드로 전환한다(S60).If the vehicle speed exceeds the constant speed selected by the driver as a result of the determination in step S40, the controller 50 switches the driving mode to the constant speed driving mode (S60).

정속주행모드로 전환한 제어부(50)는 차속감지부(30)와 드로틀위치감지부(40)로부터 인가되는 차속감지신호와 드로틀위치감지신호에 의해 차량의 주행속도와 드로틀의 개도를 감지하면서, 차속이 운전자에 의해 선택된 정속주행속도의 허용오차범위(예를 들면, ± 5km/h 정도)를 벗어나지 않도록 드로틀의 개도를 조절하기 위한 제어신호를 드로틀개도조절부(60)로 인가한다(S70).The controller 50 that has switched to the constant speed driving mode detects the driving speed of the vehicle and the opening degree of the throttle by the vehicle speed detection signal and the throttle position detection signal applied from the vehicle speed detection unit 30 and the throttle position detection unit 40. The control signal for adjusting the opening degree of the throttle is applied to the throttle opening degree adjusting unit 60 so that the vehicle speed does not deviate from the tolerance range (for example, ± 5 km / h) of the constant speed selected by the driver (S70). .

상기 제어부(50)로부터의 제어신호에 의해 드로틀개도조절부(60)의 액츄에이터가 구동되어 드로틀의 개도가 조절되고, 이와 같이 드로틀의 개도가 조절됨에 따라 엔진으로 흡입되는 공기의 양이 변화되어 엔진의 출력이 가변됨으로써, 차량의 주행속도가 조절된다.The actuator of the throttle opening degree adjusting unit 60 is driven by the control signal from the control unit 50 to adjust the opening degree of the throttle. As the opening degree of the throttle is adjusted, the amount of air sucked into the engine is changed, so that the engine By varying the output of the vehicle, the running speed of the vehicle is adjusted.

그리고, 상기한 바와 같은 정속주행모드하에서 제어부(50)는 작동정지스위치(20)로부터 정속주행모드를 해제하기 위한 키신호가 입력되는지의 여부를 판단하며(S70), 판단결과 작동정지스위치(20)로부터 정속주행모드를 해제하기 위한 키신호가 입력되지 않으면 상기 스텝(S70)으로 되돌아가 계속해서 정속주행운전을 수행한다.In addition, under the constant speed driving mode as described above, the controller 50 determines whether a key signal for releasing the constant speed driving mode is input from the operation stop switch 20 (S70), and the operation stop switch 20 is determined. If a key signal for releasing the constant speed driving mode is not inputted from the above, the process returns to the step S70 and continues the constant speed driving operation.

이때, 운전자가 정속주행모드를 해제하도록 작동정지스위치(20)를 조작하면, 그에 상응하는 키신호가 작동정지스위치(20)로부터 제어부(50)로 인가되고, 제어부(50)는 상기 작동정지스위치(20)로부터의 키신호에 의해 정속주행모드를 해제한다(S90).At this time, when the driver operates the operation stop switch 20 to release the constant speed driving mode, a corresponding key signal is applied from the operation stop switch 20 to the control unit 50, and the control unit 50 controls the operation stop switch. The constant speed driving mode is canceled by the key signal from (20) (S90).

상기와 같이 정속주행모드가 해제됨에 따라 차량의 속도는 운전자의 가속페달 조작에만 응답하여 가변된다.As the constant speed driving mode is released as described above, the speed of the vehicle is changed only in response to the driver's accelerator pedal operation.

상술한 바와 같이 본 발명에 따르면, 운전자가 차량을 운행하기 이전에 정속주행속도선택키를 조작하여 정속주행속도를 선택할 수 있고 운전 중에 정속주행모드 및 속도를 선택하기 위한 스위치조작을 할 필요가 없으므로, 이용이 편리하고 운행중의 스위치조작에 따른 사고의 위험을 미연에 예방할 수 있는 효과가 있다.As described above, according to the present invention, the driver can select the constant speed by operating the constant speed selection key before driving the vehicle, and there is no need to perform a switch operation for selecting the constant speed mode and speed while driving. In addition, it is convenient to use and can prevent the risk of accidents due to switch operation during operation.

Claims (2)

차량의 정속주행장치에 있어서,In the cruise control system of a vehicle, 차량의 정속주행속도를 선택할 수 있는 정속주행속도선택키가 구비하여 운전자가 상기 정속주행속도선택키를 조작해서 정속주행속도를 선택할 수 있게 한 정속주행속도선택용 조작부와,A constant speed drive speed selection key for selecting a constant speed drive speed of the vehicle and allowing a driver to select the speed drive speed by operating the speed drive speed key; 차량의 속도를 감지하여 감지된 차량의 속도가 상기 주행속도선택용 조작부를 통해 운전자가 선택한 정속주행속도를 초과하면 상기 선택된 정속주행속도로 차량을 정속주행시키는 제어수단을 포함하여 구성된 것을 특징으로 하는 차량의 정속주행장치.And controlling means for detecting the speed of the vehicle and driving the vehicle at a constant speed at the selected constant speed when the speed of the detected vehicle exceeds the speed at which the driver has selected through the driving speed selection operation unit. Vehicle cruise control. 차량의 정속주행방법에 있어서,In the constant speed driving method of the vehicle, 운전자가 선택키를 조작하여 정속주행속도를 선택하는 스텝과,The driver selects the fixed speed by operating the select key; 차속을 감지하는 스텝과,A step for detecting a vehicle speed, 감지된 차속이 상기 선택된 정속주행속도를 초과하면 상기 선택된 정속주행속도에 따라 차량을 정속주행시키는 스텝으로 이루어진 것을 특징으로 하는 차량의 정속주행장치.And driving the vehicle at a constant speed according to the selected constant speed when the detected vehicle speed exceeds the selected speed.
KR1019990057916A 1999-12-15 1999-12-15 Apparatus and method for cruise control of automobile KR20010056456A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100859019B1 (en) * 2007-01-17 2008-09-18 서동욱 Dial regulator
US8996272B2 (en) 2008-12-03 2015-03-31 Electronics And Telecommunications Research Institute Cruise control system and method thereof
CN113442918A (en) * 2021-06-24 2021-09-28 北京世纪东方通讯设备有限公司 Digital constant-speed flaw detection vehicle driving control method and device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100859019B1 (en) * 2007-01-17 2008-09-18 서동욱 Dial regulator
US8996272B2 (en) 2008-12-03 2015-03-31 Electronics And Telecommunications Research Institute Cruise control system and method thereof
CN113442918A (en) * 2021-06-24 2021-09-28 北京世纪东方通讯设备有限公司 Digital constant-speed flaw detection vehicle driving control method and device

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