KR100252419B1 - Engine brake alarm - Google Patents

Engine brake alarm Download PDF

Info

Publication number
KR100252419B1
KR100252419B1 KR1019970035550A KR19970035550A KR100252419B1 KR 100252419 B1 KR100252419 B1 KR 100252419B1 KR 1019970035550 A KR1019970035550 A KR 1019970035550A KR 19970035550 A KR19970035550 A KR 19970035550A KR 100252419 B1 KR100252419 B1 KR 100252419B1
Authority
KR
South Korea
Prior art keywords
vehicle
accelerator
sensor
brake
vehicle speed
Prior art date
Application number
KR1019970035550A
Other languages
Korean (ko)
Other versions
KR19990012217A (en
Inventor
강주환
Original Assignee
밍 루
주식회사만도
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 밍 루, 주식회사만도 filed Critical 밍 루
Priority to KR1019970035550A priority Critical patent/KR100252419B1/en
Publication of KR19990012217A publication Critical patent/KR19990012217A/en
Application granted granted Critical
Publication of KR100252419B1 publication Critical patent/KR100252419B1/en

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/44Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0017Devices integrating an element dedicated to another function
    • B60Q1/0023Devices integrating an element dedicated to another function the element being a sensor, e.g. distance sensor, camera
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00Purposes or special features of road vehicle drive control systems
    • B60Y2300/18Propelling the vehicle
    • B60Y2300/18008Propelling the vehicle related to particular drive situations
    • B60Y2300/18108Braking
    • B60Y2300/18133Engine braking

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

PURPOSE: A warning device of an engine brake is provided to alert deceleration of a vehicle to a backward driver by lightening a brake lamp in operating the engine brake and to prevent an accident. CONSTITUTION: A vehicle speed sensor(2) detects a velocity of a vehicle and an acceleration-opening sensor(3) detecting an opening state of an accelerator. A controller(4) receives a control signal from a shift device, the acceleration-opening sensor and the vehicle sensor to actuate a brake lamp(5). Therein, the shift device is in the first stage or in the second stage and the vehicle speed is over a specific speed without stepping in the accelerator. The brake lamp is lightened while the vehicle speed sensed by the vehicle sensor is over the specific speed, the shift device is in a first or second stage and the accelerator is not stepped by the opening state of the accelerator-opening sensor.

Description

엔진브레이크의 경고장치Warning device for engine brake

본 발명은 엔진의 압축 압력을 이용하여서 자동차를 재동시키는 엔진브레이크에 관한 것으로써, 특히 자동차의 주행중에 엔진브레이크를 사용할 경우 후방에서 주행해오는 자동차의 운전자에게 엔진브레이크가 작동됨을 경고하여 추돌사고를 방지할수 있는 엔진브레이크의 경고장치에 관한 것이다.The present invention relates to an engine brake for restarting a vehicle by using the compression pressure of the engine. In particular, when the engine brake is used while the vehicle is being driven, the driver of the vehicle driving from the rear is warned to prevent the collision. The engine brake warning device that can be.

일반적으로, 자동차에는 자동차의 속도를 감소시키거나 정지시키기 위하여 제동장치가 장착되게 된다. 또, 자동차에 장착되는 제동장치는 브레이크페달을 발로 밟아서 자동차를 정지 혹은 감속시키는 푸트브레이크와, 자동차를 정지한 상태로 유지시키는 핸드브레이크가 있다.In general, a vehicle is equipped with a brake to reduce or stop the speed of the vehicle. In addition, a brake mounted on a vehicle includes a foot brake for stopping or decelerating the vehicle by stepping on the brake pedal and a hand brake for holding the vehicle in a stopped state.

또, 자동차의 주행중에 브레이크페달을 밟아서 자동차를 정지 혹은 감속시킬 경우에는 자동차의 후방에 장착된 브레이크등이 작동되어서 후방에서 진행해 오는 자동차의 운전자에게 자동차가 정지 혹은 감속하고 있음을 경고하므로써 추돌사고의 발생을 방지하게 된다.In addition, if you stop or slow down the car by stepping on the brake pedal while the car is running, the brake lights mounted on the rear of the car will be activated to warn the driver of the car running behind the wheel, warning you that the car is stopping or decelerating. It will prevent the occurrence.

즉, 자동차의 주행중에 차동차를 정지 혹은 감속시키기 위하여 푸트브레이크를 작동시키면 자동차의 브레이크등으로 전원이 인가되어 브레이크등이 켜지게 되므로 후방에서 주행해 오는 자동차의 운전자가 전방의 자동차의 상태를 인지하여 적절한 대처를 함으로써 자동차의 추돌사고의 발생을 방지하게 된다.That is, if the foot brake is operated to stop or decelerate the differential car while the car is driving, the power is applied to the brake light of the car and the brake light is turned on. Proper action is taken to prevent the occurrence of a car crash.

그러나, 자동차의 운전자가 주행중에 변속장치의 기어를 1단 혹은 2단으로 시프트다운(Shft-Down)시키고 악셀레이터페달을 밟지 않고 엔진브레이크를 작동시킬 경우 자동차는 감속되게 되고, 후방에서 진행해 오는 운전자는 그 상태를 알지 못하게 되므로써 추돌사고가 빈번하게 발생되게 된다.However, when the driver of the vehicle shifts down the gear of the transmission to one or two gears while driving and operates the engine brake without stepping on the accelerator pedal, the vehicle is decelerated and the driver who proceeds from the rear Since the state is not known, collision accidents occur frequently.

즉, 종래에는 엔진브레이크가 작동될 경우 후방에서 진행해 오는 자동차의 운전자에게 경고할 수 있는 경고장치가 없으므로써 빈번하게 추돌사고가 발생되게 되어 재산 및 인명 피해가 발생된다는 문제점이 있었다.That is, in the related art, when the engine brake is operated, there is no warning device that can warn the driver of the vehicle traveling from the rear, so that a collision accident occurs frequently, resulting in damage to property and life.

본 발명은 상술한 문제점을 감안해서 이루어진 것으로써, 본 발명의 목적은 자동차의 엔진브레이크가 작동될 경우 브레이크등으로 전원이 인가되어 브레이크등이 켜지도록 하여 후방에서 진행해 오는 자동차의 운전자에게 자동차가 감속하고 있음을 경고하여 자동차의 추돌사고를 미연에 방지할 수 있는 엔진브레이크의 경고장치를 제공하는 데 있다.The present invention has been made in view of the above-described problems, and an object of the present invention is to decelerate a vehicle to a driver of a vehicle that proceeds from the rear by applying power to a brake light when the engine brake of the vehicle is operated so that the brake light is turned on. It is to provide a warning device for the engine brake that can prevent the collision of the car in advance by warning that the car is being made.

이와 같은 목적을 달성하기 위하여 본 발명에 의한 엔진브레이크의 경고장치는, 엔진의 동력을 자동차의 주행상태에 알맞는 회전력과 속도로 바꾸어 구동바퀴로 동력을 전달하는 변속기를 제어하는 변속장치가 장착된 엔진브레이크의 경고장치에 있어서, 차속을 감지하는 차속센서와, 악셀레이터의 개도상태를 감지하는 악셀레이터개도센서와, 상기 변속장치가 1단 혹은 2단의 상태이고 차속이 일정속도 이상이며 악셀레이터가 밟혀지지 않은 상태에서 상기 차속센서와 상기 악셀레이터개도센서 그리고 상기 변속장치로부터 제어신호를 수신하여 브레이크등이 작동되도록 제어하는 컨트롤러로 이루어진 것을 특징으로 한다.In order to achieve the above object, the warning device for an engine brake according to the present invention is equipped with a transmission for controlling a transmission that transmits power to a driving wheel by changing the power of the engine to a rotational force and a speed suitable for a driving state of a vehicle. A warning device for an engine brake, comprising: a vehicle speed sensor for detecting a vehicle speed, an accelerator accelerator sensor for detecting an opening state of an accelerator, and a transmission in one or two stages, the vehicle speed being a constant speed or more, and the accelerator not being stepped on The controller may be configured to receive a control signal from the vehicle speed sensor, the accelerator opening sensor, and the transmission device to control the brake lamp to operate.

이와 같은 본 발명에 의한 엔진브레이크의 경고장치에 의하면, 자동차의 주행중에 변속장치를 시프트다운시키고 악셀레이터페달을 밟지 않아 엔진브레이크가 작동될 경우 브레이크등이 켜지게 되므로써 후방에서 진행해오는 운전자에게 자동차가 감속함을 경고하여 추돌사고를 미연에 방지할 수 있게 되어 재산 및 인명 피해의 발생을 예방할 수 있게 되는 것이다.According to the warning device of the engine brake according to the present invention, when the engine brake is operated by shifting down the transmission and not pressing the accelerator pedal while driving the vehicle, the brake light is turned on so that the vehicle decelerates to the driver who proceeds from the rear. It is possible to prevent collision accidents in advance by warning that the accident is prevented, thereby preventing the occurrence of damage to property and life.

도1은 본 발명에 적용되는 엔진브레이크의 경고장치의 구성을 도시한 구성블럭도.1 is a block diagram showing the configuration of a warning device for an engine brake applied to the present invention.

도2는 본 발명에 적용되는 엔진브레이크의 경고장치의 작동 흐름을 도시한 작동흐름도.Figure 2 is an operational flow diagram showing the operating flow of the warning device of the engine brake applied to the present invention.

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

1 : 변속장치 2 : 차속센서1: transmission 2: vehicle speed sensor

3 : 악셀레이터개도센서 4 : 컨트롤러3: Accelerator Opening Sensor 4: Controller

5 : 브레이크등5: brake light

이하, 본 발명에 적용되는 엔진브레이크의 경고장치의 일실시예를 첨부된 도면을 참조하여서 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings an embodiment of a warning device of the engine brake applied to the present invention will be described in detail.

도1은 본 발명에 적용되는 엔진브레이크의 경고장치의 구성을 도시한 구성블럭도이고, 도2는 본 발명에 적용되는 엔진브레이크의 경고장치의 작동 흐름을 도시한 작동흐름도이다.Figure 1 is a block diagram showing the configuration of the warning device of the engine brake applied to the present invention, Figure 2 is an operational flow diagram showing the operation flow of the warning device of the engine brake applied to the present invention.

도1 및 도2에 있어서,(1)은 엔진의 동력을 자동차의 주행상태에 알맞는 회전력과 속도로 바꾸어 구동바퀴로 동력을 전달하는 변속기를 제어하는 변속장치이고, (2)는 자동차가 주행될 경우 자동차의 차속을 감지하는 차속센서이다.In Fig. 1 and Fig. 2, reference numeral 1 denotes a transmission that controls a transmission that transmits power to a driving wheel by changing the power of the engine to a rotational force and a speed suitable for the driving state of the vehicle, and (2) the vehicle travels. It is a vehicle speed sensor to detect the vehicle speed if

또, (3)은 악셀레이터의 개도상태를 감지하는 악셀레이터개도센서이며, (4)는 상기 차속센서(2)에서 감지된 차속이 일정속도이상이고 상기 변속장치(1)의 변속레버의 위치가 1단 혹은 2단이며 상기 악셀레이터개도센서(3)에서 악셀레이터가 밟혀지지 않은 상태에서 상기 차속센서(2)와 상기 변속장치(1) 그리고 상기 악셀레이터개도센서(3)로부터 제어신호를 수신하여 브레이크등(5)이 켜지도록 제어하는 컨트롤러이다. 한편, 그림에서 상기 변속장치(1)를 자동변속장치로 도시하였으나, 본 고안은 이에 한정하는 것이 아니라 수동변속장치에도 적용되는 것은 물론이다.In addition, (3) is an accelerator opening degree sensor for detecting the opening state of the accelerator, (4) the vehicle speed detected by the vehicle speed sensor (2) is more than a certain speed and the position of the shift lever of the transmission (1) is 1 The control unit receives the control signals from the vehicle speed sensor 2, the transmission device 1, and the accelerator opening degree sensor 3 in a state in which the accelerator is not stepped on the accelerator opening degree sensor 3. 5) is the controller that controls to turn on. On the other hand, although the transmission 1 is shown as an automatic transmission in the figure, the present invention is not limited to this, of course, also applied to the manual transmission.

다음은, 상기와 같이 구성된 본 발명에 의한 엔진브레이크의 경고장치의 작용효과를 도2를 참조하여서 설명한다.Next, the effect of the warning device of the engine brake according to the present invention configured as described above will be described with reference to FIG.

우선, 자동차의 변속장치(1)의 변속레버를 'D'의 위치에 놓고 일정속도 이상으로 주행하다가 급상황이 발생되어서 상기 변속장치(1)를 1단 혹은 2단으로 위치시키고 악셀레이터페달에 밟지 않고 엔진브레이크로써 자동차를 감속시킬 경우 상기 브레이크등(5)으로 전원이 인가되어서 상기 브레이크등(5)이 켜지게 된다.First, the shift lever of the transmission 1 of the vehicle is set at the position of 'D', and the vehicle is driven at a certain speed or more, and suddenly occurs, the position of the transmission 1 is shifted to one or two stages, and the accelerator pedal is not stepped on. When the vehicle is decelerated by the engine brake, power is applied to the brake light 5 so that the brake light 5 is turned on.

즉, 상기 변속장치(1)가 1단 혹은 2단의 상태이고 상기 차속센서(2)에서 감지된 차속이 일정속도 이상이며 상기 악셀레이터개도센서(3)의 개도상태가 악셀레이터를 밟지않을 상태일 경우 각 제어신호가 상기 컨트롤러(4)로 송신되고, 상기 컨트롤러(4)에서는 상기 변속장치(1)가 1단 혹은 2단의 상태이고 상기 차속센서(2)에서 감지된 차속이 일정속도 이상이며 상기 악셀레이터개도센서(3)의 개도상태가 악셀레이터를 밟지 않을 상태일 경우 상기 브레이크등(5)이 켜져 후방에 진행해오는 운전자에게 자동차가 감속됨을 인지할 수 있도록 상기 브레이크등(5)으로 제어신호를 송신한다.That is, when the transmission device 1 is in the first stage or the second stage, the vehicle speed detected by the vehicle speed sensor 2 is greater than or equal to a certain speed, and the opening state of the accelerator opening sensor 3 does not step on the accelerator. Each control signal is transmitted to the controller 4, in which the transmission device 1 is in one or two stages, and the vehicle speed detected by the vehicle speed sensor 2 is equal to or greater than a certain speed. When the opening state of the accelerator opening sensor 3 does not step on the accelerator, a control signal is transmitted to the brake lamp 5 so that the driver may proceed to the rear by turning on the brake lamp 5 so as to recognize that the vehicle is decelerated. do.

이때, 상기 컨트롤러(4)는 상기 변속장치(1)가 1단 혹은 2단의 상태, 상기 차속센서(2)에서 감지된 차속이 일정속도 이상의 상태, 상기 악셀레이터개도센서(3)의 개도상태가 악셀레이터를 밟지 않은 상태중 어느 하나의 조건이 만족되지 않으면 상기 브레이크등(5)이 켜지지 않도록 제어한다.At this time, the controller 4 has a state in which the transmission device 1 is in one or two stages, a vehicle speed detected by the vehicle speed sensor 2 is a constant speed or more, and an opening state of the accelerator opening degree sensor 3 is determined. If the condition of any one of the state where the accelerator is not pressed is not satisfied, the brake lamp 5 is controlled to not turn on.

즉, 상기 브레이크등(5)은 상기 변속장치(1)가 1단 혹은 2단의 상태, 상기 차속센서(2)에서 감지된 차속이 일정속도 이상의 상태, 상기 악셀레이터개도센서(3)의 개도상태가 악셀레이터를 밟지 않은 상태의 모든 조건이 동시에 만족되어야만 켜지게 되는 것이다.That is, the brake light 5 has a state in which the transmission device 1 is in one or two stages, a vehicle speed detected by the vehicle speed sensor 2 is a predetermined speed or more, and an opening state of the accelerator accelerator opening sensor 3. It will be turned on only when all the conditions without stepping on the accelerator are satisfied at the same time.

또, 상기와 같이 엔진브레이크가 작동되면 상기 브레이크등(5)이 켜지게 되므로써 후방에서 진행해 오는 자동차의 운전자는 그 상태를 인지하여 전방의 자동차와 추돌사고의 발생을 방지할 수 있다.In addition, when the engine brake is operated as described above, the brake light 5 is turned on, so that the driver of the vehicle proceeding from the rear can recognize the state and prevent the occurrence of a collision with the vehicle in front.

앞에서 설명한 바와 같이 본 발명에 의한 엔진브레이크의 경고장치에 의하면, 자동차의 주행중에 변속장치를 시프트다운시키고 악셀레이터페달을 밟지 않아 엔진브레이크가 작동될 경우 브레이크등이 켜지게 되므로써 후방에서 진행해오는 운전자에게 자동차가 감속함을 경고하여 추돌사고를 미연에 방지할 수 있게 되어 재산 및 인명 피해의 발생을 예방할 수 있게 된다는 매우 우수한 효과가 있다.As described above, according to the warning device of the engine brake according to the present invention, when the engine brake is operated by shifting down the transmission and not pressing the accelerator pedal while the vehicle is being driven, the brake light is turned on so that the driver proceeds from the rear to the driver. There is a very good effect that it is possible to prevent collision accidents in advance by warning of deceleration.

Claims (2)

엔진의 동력을 자동차의 주행상태에 알맞는 회전력과 속도로 바꾸어 구동바퀴로 동력을 전달하는 변속기를 제어하는 변속장치(1)가 장착된 엔진브레이크의 경고장치에 있어서, 차속을 감지하는 차속센서(2)와, 악셀레이터의 개도상태를 감지하는 악셀레이터개도센서(3)와, 상기 변속장치(1)가 1단 혹은 2단의 상태이고 차속이 일정속도 이상이며 악셀러이터가 밟혀지지 않은 상태에서 상기 차속센서(2)와 상기 악셀레이터개도센서(3) 그리고 상기 변속장치(1)로부터 제어신호를 수신하여 브레이크등(5)이 작동되도록 제어하는 컨트롤러(4)로 이루어진 것을 특징으로 하는 엔진브레이크의 경고장치.In a warning device for an engine brake equipped with a transmission (1) for controlling a transmission that transmits power to a driving wheel by changing the power of an engine to a rotational force and a speed suitable for a driving state of a vehicle, a vehicle speed sensor for detecting a vehicle speed ( 2), the accelerator opening sensor 3 for detecting the opening state of the accelerator, and the transmission device 1 in one or two stages, the vehicle speed being a certain speed or more, and the accelerator not being stepped on. Warning of the engine brake, characterized in that consisting of a vehicle speed sensor (2), the accelerator opening degree sensor (3) and a controller (4) for receiving a control signal from the transmission (1) and controlling the brake lamp (5) to operate. Device. 청구항 1에 있어서,The method according to claim 1, 상기 브레이크등(5)은 상기 변속장치(1)가 1단 혹은 2단의 상태, 상기 차속센서(2)에서 감지된 차속이 일정속도 이상의 상태, 상기 악셀레이터개도센서(3)의 개도상태가 악셀레이터를 밟지 않은 상태의 모든 조건이 동시에 만족되어야만 켜지게 되는 것을 특징으로 하는 엔진브레이크의 경고장치.The brake lamp 5 has a state in which the transmission device 1 is in one or two stages, a vehicle speed detected by the vehicle speed sensor 2 is a constant speed or more, and an opening state of the accelerator opening degree sensor 3 is an accelerator. Warning device for the engine brake, characterized in that only when all the conditions in the state of not pressing down to be satisfied at the same time.
KR1019970035550A 1997-07-28 1997-07-28 Engine brake alarm KR100252419B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019970035550A KR100252419B1 (en) 1997-07-28 1997-07-28 Engine brake alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019970035550A KR100252419B1 (en) 1997-07-28 1997-07-28 Engine brake alarm

Publications (2)

Publication Number Publication Date
KR19990012217A KR19990012217A (en) 1999-02-25
KR100252419B1 true KR100252419B1 (en) 2000-05-01

Family

ID=19515958

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970035550A KR100252419B1 (en) 1997-07-28 1997-07-28 Engine brake alarm

Country Status (1)

Country Link
KR (1) KR100252419B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210021095A (en) * 2018-07-20 2021-02-24 메이덴샤 코포레이션 Accel margin measurement device, accelerator margin measurement method, program, and medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210021095A (en) * 2018-07-20 2021-02-24 메이덴샤 코포레이션 Accel margin measurement device, accelerator margin measurement method, program, and medium
KR102325642B1 (en) 2018-07-20 2021-11-15 메이덴샤 코포레이션 Acceler clearance measuring device, accelerator clearance measuring method, and medium

Also Published As

Publication number Publication date
KR19990012217A (en) 1999-02-25

Similar Documents

Publication Publication Date Title
JP4066609B2 (en) Status display device for vehicle travel control device
JP2940174B2 (en) Travel control device for vehicles
KR100252419B1 (en) Engine brake alarm
KR0183233B1 (en) Driving control apparatus while operating a parking brake
KR100217575B1 (en) An automatic brake system
KR100217643B1 (en) Apparatus and method of a brake system
KR0149612B1 (en) Velocity control device and method thereof
JPH09142270A (en) Braking force retaining device for vehicle
KR19980042703U (en) Driving status indicator
KR200192384Y1 (en) Braking light control device at constant speed
KR19980047985U (en) Brake light on engine braking
KR0139953B1 (en) Brake lamp and direction indicating lamp
KR19980044623A (en) Automotive emergency light automatic lighting device
KR20040006785A (en) System and method for driving a car in stead speed having a function for warning a slip on the road
KR19980068847A (en) Vehicle safety distance alarm
KR980007487U (en) Emergency light flasher for engine brake of manual transmission vehicle
KR19990010256A (en) Emergency light flashing / relay control device in case of sudden braking
KR980008717A (en) Method and apparatus for deceleration control of an automatic transmission equipped vehicle
KR19990017441A (en) Brake light lighting device according to vehicle speed
KR20040025973A (en) Automatic switch for emergency lamp of car and controlling method to contoll it
KR19980048052U (en) Emergency light automatic lighting device in case of rapid brake for vehicle
KR19990041171A (en) Notification device when the engine brake is activated
KR19980048020U (en) Emergency light blinking cycle control device according to braking condition during sudden braking
KR980008803A (en) Speed and RPM-sensitive deceleration warning device
JPH02128931A (en) Slow running device

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
N231 Notification of change of applicant
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee