KR20020055087A - brake method of vehicle - Google Patents

brake method of vehicle Download PDF

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Publication number
KR20020055087A
KR20020055087A KR1020000084443A KR20000084443A KR20020055087A KR 20020055087 A KR20020055087 A KR 20020055087A KR 1020000084443 A KR1020000084443 A KR 1020000084443A KR 20000084443 A KR20000084443 A KR 20000084443A KR 20020055087 A KR20020055087 A KR 20020055087A
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KR
South Korea
Prior art keywords
clutch
braking
state
vehicle
sudden braking
Prior art date
Application number
KR1020000084443A
Other languages
Korean (ko)
Inventor
김형영
Original Assignee
이계안
현대자동차주식회사
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 이계안, 현대자동차주식회사 filed Critical 이계안
Priority to KR1020000084443A priority Critical patent/KR20020055087A/en
Publication of KR20020055087A publication Critical patent/KR20020055087A/en

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Classifications

    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
    • B60T8/3215—Systems characterised by having means acting on components of the drive line, e.g. retarder, clutch or differential gear
    • 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
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/02—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for main transmission clutches
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/06—Disposition of pedal

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

PURPOSE: A method for the braking a vehicle is provided to prevent the reduction of the braking power by forcibly connecting a disconnected clutch even if a brake pedal is stepped on with a clutch pedal. CONSTITUTION: A method for the braking a vehicle comprises the steps of deciding a rapid braking state by calculating a reduction rate of a traveling speed per a second(13), deciding the operation of a clutch in the rapid braking(14), and holding the clutch in the connected state if the clutch is not operated(16). If the clutch is operated, the disconnected clutch is forcibly connected, and the clutch-off state is held forcibly. Therefore, the reduction of the braking power is avoided.

Description

자동차의 제동방법{brake method of vehicle}Brake method of vehicle

본 발명은 자동차의 제동방법에 관한 것으로, 특히 급제동시 브레이크페달과 클러치페달이 동시에 작동될 경우 클러치의 맞물림상태를 지속시켜 급제동력이 감소되는 것을 방지할 수 있도록 된 자동차의 제동방법에 관한 것이다.The present invention relates to a braking method of a vehicle, and more particularly, to a braking method of a vehicle that can prevent the sudden braking force is reduced by maintaining the clutch engaged state when the brake pedal and the clutch pedal are operated simultaneously.

일반적으로, 차량의 주행시 돌발상황이 발생되면 운전자는 급제동을 실시하여 안전사고가 발생되는 것을 미리 예방하게 되는데, 만일 수동변속기가 장착된 차량의 급제동시 운전자의 부주의로 인해 브레이크페달과 클러치페달을 동시에 밟아주게 되면 엔진의 rpm이 급격히 감소하면서 급제동력도 감소하게 되며, 이로인해대형사고가 유발되는 문제점이 있었다.In general, if a sudden situation occurs while driving a vehicle, the driver performs a sudden braking to prevent a safety accident. If a driver is inadvertently braked when the vehicle is equipped with a manual transmission, the brake pedal and the clutch pedal are simultaneously operated. When stepping on the engine, the rpm of the engine sharply decreases and the braking power is also reduced, thereby causing a large accident.

이에 본 발명은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 수동변속기가 장착된 차량의 급제동시 운전자가 브레이크페달과 클러치페달을 동시에 밟아주게 되더라도, 클러치의 맞물림상태를 지속시켜 급제동력이 감소되는 것을 방지하면서 대형사고가 유발되는 것을 미리 예방할 수 있도록 된 자동차의 제동방법을 제공함에 그 목적이 있다.Therefore, the present invention has been made to solve the above problems, even if the driver stepped on the brake pedal and the clutch pedal at the same time when braking the vehicle equipped with a manual transmission, the brake braking force is reduced by continuing the engagement state of the clutch The purpose of the present invention is to provide a braking method of a vehicle that can prevent a large accident from occurring in advance.

상기와 같은 목적을 달성하기 위한 본 발명의 제동방법은, 시간당 주행속도 감속량을 연산하여 급제동상태임을 판별하는 단계와, 급제동시 클러치의 작동여부를 판별하는 단계와, 급제동시 클러치가 작동되지 않았으면 급제동력이 감소되는 것을 방지하기 위해 클러치를 연결상태로 고정시키는 단계로 이루어진 것을 특징으로 한다.The braking method of the present invention for achieving the above object, the step of determining the speed of the running speed deceleration to determine the braking state, the step of determining the operation of the clutch during sudden braking, the clutch does not operate during sudden braking If it is characterized in that the step consisting of fixing the clutch in a connected state to prevent the sudden braking force is reduced.

도 1은 본 발명에 따른 제동방법을 설명하기 위한 블록도,1 is a block diagram illustrating a braking method according to the present invention;

도 2는 본 발명에 따른 제동방법을 설명하기 위한 순서도이다.2 is a flowchart illustrating a braking method according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1 - ECU(전자제어유니트) 2 - 가속페달센서1-ECU (Electronic Control Unit) 2-Accelerator Pedal Sensor

3 - 브레이크페달센서 4 - 가속도센서3-Brake Pedal Sensor 4-Acceleration Sensor

5 - 클러치페달센서5-Clutch Pedal Sensor

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1과 도 2는 본 발명에 따른 제동방법을 설명하기 위한 블록도 및 순서도로서, 운전자가 가속페달을 밟아주게 되면 ECU(1;전자제어유니트)는 가속페달센서(2) 및 차속센서(도시않됨)로부터 인가된 신호에 의해 차량이 주행상태임을 판별하게 된다.1 and 2 are block diagrams and flow charts for explaining a braking method according to the present invention. When the driver steps on the accelerator pedal, the ECU 1 (electronic control unit) is an accelerator pedal sensor 2 and a vehicle speed sensor (not shown). It is determined that the vehicle is in the driving state by the applied signal.

이후, 주행중 운전자가 브레이크페달을 밟아주게 되면 상기 ECU(1)는 브레이크페달센서(3) 및 가속도센서(4)로부터 인가된 신호에 의해 제동상태임을 판별하게된다.(단계 11)Thereafter, when the driver steps on the brake pedal while driving, the ECU 1 determines that the brake state is applied by signals applied from the brake pedal sensor 3 and the acceleration sensor 4 (step 11).

이때, 상기 가속도센서(4)로부터 인가된 신호가 단위시간(sec)당 속도감속량이 일정치 이상이면 상기 ECU(1)는 급제동상태로 판별하게 된다.(단계12,13)At this time, if the signal applied from the acceleration sensor 4 is a speed reduction amount per unit time (sec) or more, the ECU 1 determines that it is in a sudden braking state (steps 12 and 13).

그리고, 상기 ECU(1)는 급제동상태임을 판별하고 난 다음 클러치페달센서(5)를 이용하여 클러치의 작동여부를 판별하게 된다.(단계14)Then, the ECU 1 determines whether the brake is in a sudden braking state and then determines whether the clutch is operated by using the clutch pedal sensor 5 (step 14).

여기서, 운전자가 클러치페달을 밟아주지 않아 클러치가 맞물려져 있는 상태이면 상기 클러치는 작동되지 않은 상태이고, 반대로 운전자가 클러치페달을 밟아 클러치가 단락된 상태이면 상기 클러치는 작동된 상태이다.Here, when the driver does not step on the clutch pedal and the clutch is engaged, the clutch is not operated. On the contrary, when the driver steps on the clutch pedal and the clutch is shorted, the clutch is operated.

한편, 상기 ECU(1)가 급제동상태이고 클러치가 작동되지 않은 상태로 판별하게 되면, 상기 ECU(1)는 클러치가 맞물려져 있는 상태인 클러치 오프(off)상태를 강제적으로 고정시켜 급제동력이 감소되는 것을 예방하게 된다.(단계15)On the other hand, when it is determined that the ECU 1 is in a sudden braking state and the clutch is not operated, the ECU 1 forcibly fixes the clutch off state in which the clutch is engaged to reduce the sudden braking force. (Step 15)

그리고, 상기 ECU(1)가 급제동상태이고 클러치가 작동된 상태로 판별하게 되면, 상기 ECU(1)는 단락된 클러치를 강제적으로 연결시키면서 클러치가 맞물려져 있는 상태인 클러치 오프(off)상태를 강제적으로 고정시켜 급제동력이 감소되는 것을 예방하게 된다.(단계16)When the ECU 1 is determined to be in a sudden braking state and the clutch is in an operating state, the ECU 1 forces a clutch off state in which the clutch is engaged while forcibly connecting the shorted clutch. To prevent the sudden braking force from being reduced (Step 16).

그리고, 클러치가 오프(off)상태로 고정되면 상기 ECU(1)는 차속센서(도시않됨)를 이용하여 차량의 주행속도를 판별하게 되는데(단계 17), 주행속도가 0(zero)로 판별되면 시동이 오프(off)되면서 완전한 제동이 이루어지게 되고(단계 18), 주행속도가 0(zero)가 아닌 것으로 판별되면 가속페달의 작동유무에 따라 전술한 제동방법을 반복적으로 수행한 후 제동이 이루어지게 된다.(단계19)When the clutch is fixed to the off state, the ECU 1 determines the driving speed of the vehicle using a vehicle speed sensor (not shown) (step 17). When the start is off and complete braking is performed (step 18), and if it is determined that the driving speed is not zero, braking is performed after repeatedly performing the aforementioned braking method according to whether the accelerator pedal is operated. (Step 19)

따라서, 급제동시 운전자의 부주의로 인해 브레이크페달과 클러치페달이 동시에 작동되더라도 상기 ECU(1)가 클러치가 단락되는 것을 방지하거나 또는 단락된 클러치를 강제적으로 연결시켜 주게 됨으로써, 급제동력이 감소되는 것을 방지하게 되며 이로인해 안전사고가 유발되는 것을 미리 예방할 수 있게 된다.Therefore, even when the brake pedal and the clutch pedal are operated simultaneously due to the carelessness of the driver during sudden braking, the ECU 1 prevents the clutch from shorting or forcibly connects the shorted clutch, thereby preventing the sudden braking force from being reduced. This prevents the occurrence of a safety accident in advance.

이상 설명한 바와 같이 본 발명에 의하면, 수동변속기가 장착된 차량이 주행중에 급제동을 실시하면서 운전자의 브레이크페달과 클러치페달을 동시에 밟아주더라도 클러치의 단락이 방지되거나 또는 단락된 클러치가 강제적으로 연결되므로, 제동력이 감소되는 것을 방지할 수 있게 되며 이로인해 안전사고가 유발되는 것을 미리 예방할 수 있게 되어 탑승자의 안전성이 향상되면서 상품성이 증진되는 효과가 있게 된다.As described above, according to the present invention, even when the vehicle equipped with the manual transmission brakes while the driver brakes and the clutch pedal simultaneously, the short circuit of the clutch is prevented or the shorted clutch is forcibly connected. It is possible to prevent the braking force from being reduced, thereby preventing the occurrence of a safety accident in advance, thereby enhancing the safety of the occupant and improving the merchandise.

Claims (2)

시간(sec)당 주행속도 감속량을 연산하여 급제동상태임을 판별하는 단계와, 급제동시 클러치의 작동여부를 판별하는 단계와, 급제동시 클러치가 작동되지 않았으면 급제동력이 감소되는 것을 방지하기 위해 클러치를 연결상태로 고정시키는 단계로 이루어진 자동차의 제동방법.Calculating the speed reduction amount per time (sec) to determine whether the brake is in a sudden braking state, determining whether the clutch is in operation during sudden braking, and if the clutch is not operated during sudden braking, to prevent the sudden braking force from decreasing. Braking method of the vehicle consisting of a step of fixing to the connected state. 제 1항에 있어서, 급제동시 클러치가 작동되었으면 클러치를 강제적으로 연결시킨 다음 연결된 상태를 유지시키도록 된 것을 특징으로 하는 자동차의 제동방법.2. The braking method of claim 1, wherein if the clutch is operated during sudden braking, the clutch is forcibly connected and then maintained.
KR1020000084443A 2000-12-28 2000-12-28 brake method of vehicle KR20020055087A (en)

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KR1020000084443A KR20020055087A (en) 2000-12-28 2000-12-28 brake method of vehicle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115214571A (en) * 2022-08-01 2022-10-21 眉山中车制动科技股份有限公司 Electronic auxiliary brake device of instructional car and control method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980052389U (en) * 1996-12-31 1998-10-07 박병재 Prevent brake and clutch operation simultaneously during sudden braking
KR20000060938A (en) * 1999-03-22 2000-10-16 정몽규 Brake safety device for vehicles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980052389U (en) * 1996-12-31 1998-10-07 박병재 Prevent brake and clutch operation simultaneously during sudden braking
KR20000060938A (en) * 1999-03-22 2000-10-16 정몽규 Brake safety device for vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115214571A (en) * 2022-08-01 2022-10-21 眉山中车制动科技股份有限公司 Electronic auxiliary brake device of instructional car and control method
CN115214571B (en) * 2022-08-01 2023-07-07 眉山中车制动科技股份有限公司 Electronic auxiliary braking device of instructional car

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