KR970044800A - Engine brake suitable vehicle speed determining device and method for downhill driving of vehicle with automatic transmission - Google Patents

Engine brake suitable vehicle speed determining device and method for downhill driving of vehicle with automatic transmission Download PDF

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Publication number
KR970044800A
KR970044800A KR1019950066750A KR19950066750A KR970044800A KR 970044800 A KR970044800 A KR 970044800A KR 1019950066750 A KR1019950066750 A KR 1019950066750A KR 19950066750 A KR19950066750 A KR 19950066750A KR 970044800 A KR970044800 A KR 970044800A
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KR
South Korea
Prior art keywords
speed
vehicle
braking
engine brake
vehicle speed
Prior art date
Application number
KR1019950066750A
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Korean (ko)
Other versions
KR100298714B1 (en
Inventor
유진호
Original Assignee
전성원
현대자동차 주식회사
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.)
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Application filed by 전성원, 현대자동차 주식회사 filed Critical 전성원
Priority to KR1019950066750A priority Critical patent/KR100298714B1/en
Publication of KR970044800A publication Critical patent/KR970044800A/en
Application granted granted Critical
Publication of KR100298714B1 publication Critical patent/KR100298714B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/04—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
    • 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
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/08—Introducing corrections for particular operating conditions for idling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
    • F02D2200/501—Vehicle speed

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mathematical Physics (AREA)
  • Control Of Transmission Device (AREA)

Abstract

이 발명은 자동변속기 장착 차량의 내리막 주행시 엔진 브레이크 적합차속 판정 및 판정방법에 관한 것으로, 브레이크를 밟았는지를 감지하기 위한 브레이킹 감지수단과; 공회전 상태인 지를 감지하기 위한 공회전 감지수단과; 차속을 감지하기 위한 차속 감지수단과; 도로의 경사를 판단하기 위한 도로 경사 판단수단과; 상기 브레이킹 감지수단과, 공회전 감지수단과, 차속 감지수단과, 도로 경사 판단수단의 출력을 입력받아 운전자의 엔진 브레이킹 의도를 파악하여 엔진브레이크를 제어하기 위한 제어신호를 출력하기 위한 제어수단과; 상기 제어수단의 제어신호를 입력받아 엔진 브레이크를 걸기 위한 엔진 브레이크 구동장치를 포함하여 구성되어, 차량이 내리막길을 주행할 때, 운전자의 브레이킹 의도 또는 정속주행 의도를 파악하여 운전의 편의성 증대와 브레이킹 횟수를 감소시키는 자동변속기 장착 차량의 내리막 주행시 엔진 브레이크 적합차속 판정 장치 및 판정방법에 관한 것이다.The present invention relates to an engine brake suitable vehicle speed determination and determination method for downhill driving of a vehicle with an automatic transmission, comprising: braking detecting means for detecting whether the brake is pressed; Idling detection means for detecting whether it is idling; Vehicle speed detecting means for detecting a vehicle speed; Road inclination determination means for determining the inclination of the road; Control means for outputting the braking detection means, the idling detection means, the vehicle speed detection means, and the output of the road inclination determination means, to grasp the engine braking intention of the driver and to output a control signal for controlling the engine brake; It includes an engine brake driving device for applying the control signal of the control means to apply the engine brake, when the vehicle travels downhill, grasp the driver's braking intention or constant speed driving intention to increase driving convenience and braking The present invention relates to an engine brake suitable vehicle speed judging device and a judging method for downhill driving of a vehicle with an automatic transmission which reduces the number of times.

Description

자동 변속기 장착 차량의 내리막 주행시 엔진 브레이크 적합차속 판정장치 및 판정방법Engine brake suitable vehicle speed determining device and method for downhill driving of vehicle with automatic transmission

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 이 발명의 실시예에 따른 자동변속기 장착 차량의 내리막 주행시 엔진브레이크 적합차속 판정 장치의 구성 블록도.3 is a block diagram illustrating a configuration of an engine brake suitable vehicle speed determining apparatus for downhill driving of a vehicle with an automatic transmission according to an embodiment of the present invention.

제4도는 이 발명의 실시예에 따른 자동변속기 장착 차량의 내리막 주행시 엔진 브레이크 적합차속 판정 방법의 흐름도.4 is a flowchart of a method for determining an engine brake suitable vehicle speed when driving downhill of a vehicle with an automatic transmission according to an embodiment of the present invention.

Claims (2)

브레이크를 밟았는지를 감지하기 위한 브레이킹 감지수단과; 공회전 상태인 지를 감지하기 위한 공회전 감지수단과; 차속을 감지하기 위한 차속 감지수단과; 도로의 경사를 판단하기 위한 도로 경사 판단수단과; 상기 브레이킹 감지수단과, 공회전 감지수단과, 차속 감지수단과, 도로 경사 판단수단의 출력을 입력받아 운전자의 엔진 브레이킹 의도를 파악하여 엔진브레이크를 제어하기 위한 제어신호를 출력하기 위한 제어수단과; 상기 제어수단의 제어신호를 입력받아 엔진 브레이크를 걸기 위한 엔진 브레이크 구동장치를 포함하여 구성되어 짐을 특징으로 하는 자동변속기 장착 차량의 내리막 주행시 엔진 브레이크 적합차속 판정 장치.Braking detecting means for detecting whether the brake is pressed; Idling detection means for detecting whether it is idling; Vehicle speed detecting means for detecting a vehicle speed; Road inclination determination means for determining the inclination of the road; Control means for outputting the braking detection means, the idling detection means, the vehicle speed detection means, and the output of the road inclination determination means, to grasp the engine braking intention of the driver and to output a control signal for controlling the engine brake; And an engine brake driving device configured to apply the control signal of the control means to apply the engine brake. 엔진 상태가 아이들 상태인지 판단하는 단계와; 차량 가속도가 '0' 보다 큰지를 판단하는 단계와; 차량 가속도가 '0' 보다 크면, 경사로인지를 판단하는 단계와; 경사로이면, 현재속도를 경사로 시작속도 대입하는 단계와; 일정시간 지연하는 단계와; 현재속도와 경사로 시작속도를 비교하는 단계와; 현재속도가 경사로 시작속도 보다 작으면, 현재속도를 브레이킹 초기 속도로 대입하는 단계와; 차량 가속도가 '0' 보다 크지 않으면, 현재 속도와 브레이크 초기속도를 비교하는 단계와; 현재속도를 브레이킹이 끝나는 속도로 대입하는 단계와; 브레이킹이 끝나는 속도를 목표속도에 대입하는 단계와; 4→3다운 시프트를 강제수행하는 단계와; 목표속도와 현재속도를 비교하는 단계와; 목표속도가 현재속도 보다 작으면, 3속을 유지하는 단계와; 목표속도가 현재속도 보다 크면, 초기화를 하는 단계를 포함하여 구성되어 짐을 특징으로 하는 자동변속기 장착 차량의 내리막 주행시 엔진 브레이크 적합차속 판정 방법.Determining whether the engine state is idle; Determining whether the vehicle acceleration is greater than '0'; Determining whether the vehicle is an incline if the vehicle acceleration is greater than '0'; If it is a ramp, substituting a current speed for the ramp at a ramp; Delaying a predetermined time; Comparing the current speed with the ramp starting speed; If the current speed is less than the ramp start speed, substituting the current speed as the braking initial speed; If the vehicle acceleration is not greater than '0', comparing the current speed with the brake initial speed; Replacing the current speed with the speed at which the braking ends; Substituting the speed at which the braking ends at the target speed; Forcing a 4 → 3 downshift; Comparing the target speed with the current speed; If the target speed is less than the current speed, maintaining the third speed; If the target speed is greater than the current speed, the engine brake suitable vehicle speed determination method for downhill driving of a vehicle with an automatic transmission characterized in that it comprises a step of initializing.
KR1019950066750A 1995-12-29 1995-12-29 Engine brake optimum car speed device and determining method when downhill driving of automatic transmission car KR100298714B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950066750A KR100298714B1 (en) 1995-12-29 1995-12-29 Engine brake optimum car speed device and determining method when downhill driving of automatic transmission car

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Application Number Priority Date Filing Date Title
KR1019950066750A KR100298714B1 (en) 1995-12-29 1995-12-29 Engine brake optimum car speed device and determining method when downhill driving of automatic transmission car

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KR970044800A true KR970044800A (en) 1997-07-26
KR100298714B1 KR100298714B1 (en) 2001-11-22

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100456874B1 (en) * 2001-12-14 2004-11-10 현대자동차주식회사 a method for engine brake controlling of manual transmission

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