KR101646386B1 - Cvvt의 체결 볼트 이상 감지 방법 및 그 시스템 - Google Patents
Cvvt의 체결 볼트 이상 감지 방법 및 그 시스템 Download PDFInfo
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- KR101646386B1 KR101646386B1 KR1020140164881A KR20140164881A KR101646386B1 KR 101646386 B1 KR101646386 B1 KR 101646386B1 KR 1020140164881 A KR1020140164881 A KR 1020140164881A KR 20140164881 A KR20140164881 A KR 20140164881A KR 101646386 B1 KR101646386 B1 KR 101646386B1
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- 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
- F02D13/0203—Variable control of intake and exhaust valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/24—Safety means or accessories, not provided for in preceding sub- groups of this group
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/34403—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
-
- 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
- F02D13/0203—Variable control of intake and exhaust valves
- F02D13/0215—Variable control of intake and exhaust valves changing the valve timing only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34453—Locking means between driving and driven members
- F01L2001/34469—Lock movement parallel to camshaft axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L2013/11—Sensors for variable valve timing
- F01L2013/111—Camshafts position or phase
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2303/00—Manufacturing of components used in valve arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2800/00—Methods of operation using a variable valve timing mechanism
- F01L2800/10—Providing exhaust gas recirculation [EGR]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2800/00—Methods of operation using a variable valve timing mechanism
- F01L2800/11—Fault detection, diagnosis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/01—Absolute values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/04—Sensors
- F01L2820/041—Camshafts position or phase sensors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
이를 위해 본 발명은, 캠샤프트 포지션 센서가 정상적으로 작동하는지 판단하는 단계; 상기 캠샤프트 포시션 센서를 이용 캠 샤프트의 최지각 위치를 학습하는 단계; 캠 샤프트의 최지각 위치를 학습하는 단계가 정상인지를 판단하는 단계; 및 상기 캠 샤프트의 최지각 위치를 학습하는 단계가 정상인 경우 학습시 사용된 PWM듀티값이 설정된 제1기준값과 비교하는 단계를 포함한다.
Description
도 3은 본 발명인 CVVT의 체결 볼트 이상 감지 시스템이 전체 구성도
120 : 로터 200 : 캠샤프트 포지션 센서
300 : 제어부
Claims (5)
- 캠샤프트 포지션 센서가 정상적으로 작동하는지 판단하는 단계;
상기 캠샤프트 포지션 센서를 이용 캠 샤프트의 최지각 위치를 학습하는 단계;
캠 샤프트의 최지각 위치를 학습하는 단계가 정상인지를 판단하는 단계; 및
상기 캠 샤프트의 최지각 위치를 학습하는 단계가 정상인 경우 학습시 사용된 PWM듀티값이 설정된 제1기준값과 비교하는 단계를 포함하고,
상기 캠 샤프트의 최지각 위치를 학습하는 단계가 정상인 경우 학습시 사용된 PWM듀티값이 설정된 제1기준값과 비교하는 단계 이후에,
CVVT 액추에이터의 응답속도를 학습하는 단계;
학습된 응답속도가 설정된 범위 내에 속해 응답속도를 학습하는 단계가 정상인지를 판단하는 단계;
상기 응답속도를 학습하는 단계가 정상인 경우 학습시 사용된 PWM듀티값이 설정된 제2기준값과 비교하는 단계를 더 포함하며,
상기 캠 샤프트의 최지각 위치를 학습하는 단계가 정상인 경우 학습시 사용된 PWM듀티값이 상기 제1기준값보다 작고,
상기 응답속도를 학습하는 단계가 정상인 경우 학습시 사용된 PWM듀티값이 설정된 제2기준값보다 큰 경우 CVVT의 체결 볼트의 풀림 현상에 따른 이상이 있는 것으로 판단하는 것을 특징으로 하는, CVVT의 체결 볼트 이상 감지 방법.
- 삭제
- 청구항 1에 있어서,
상기 제1기준값은 45%이고, 상기 제2기준값은 38%인 것을 특징으로 하는, CVVT의 체결 볼트 이상 감지 방법.
- 캠샤프트 포지션 센서;
하우징과 상기 하우징 내에 장착된 로터를 포함하는 CVVT 엑추에이터;
상기 캠샤프트의 회전과 상기 CVVT 엑추에이터의 작동을 위한 PWM듀티값을 전송하고 전송된 PWM듀티값을 저장하는 제어부; 를 포함하되,
상기 제어부는, 캠 샤프트의 최지각 위치의 학습이 정상이라고 판단시 학습시 사용된 PWM듀티값이 설정된 제1기준값보다 작고, 상기 CVVT 액추에이터의 응답속도의 학습이 정상이라고 판단시 학습시 사용된 PWM듀티값이 설정된 제2기준값보다 큰 경우 CVVT의 체결 볼트의 풀림 현상에 따른 이상이 있는 것으로 판단하는 것을 특징으로 하는, CVVT의 체결 볼트 이상 감지 시스템. - 삭제
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020140164881A KR101646386B1 (ko) | 2014-11-25 | 2014-11-25 | Cvvt의 체결 볼트 이상 감지 방법 및 그 시스템 |
US14/720,689 US9890668B2 (en) | 2014-11-25 | 2015-05-22 | Method and system for detecting malfunction of fastening bolt in CVVT |
CN201510325655.0A CN106199728B (zh) | 2014-11-25 | 2015-06-12 | 用于检测cvvt中的紧固螺栓的故障的方法和系统 |
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KR1020140164881A KR101646386B1 (ko) | 2014-11-25 | 2014-11-25 | Cvvt의 체결 볼트 이상 감지 방법 및 그 시스템 |
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KR20160063435A KR20160063435A (ko) | 2016-06-07 |
KR101646386B1 true KR101646386B1 (ko) | 2016-08-16 |
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US (1) | US9890668B2 (ko) |
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CN (1) | CN106199728B (ko) |
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US10371018B2 (en) * | 2017-03-24 | 2019-08-06 | GM Global Technology Operations LLC | Device and method for fast position control of a hydraulic actuator |
KR102540886B1 (ko) * | 2018-09-03 | 2023-06-08 | 현대자동차주식회사 | Cvvd 위치학습결과 검증방법 및 cvvd 시스템 |
KR101992795B1 (ko) * | 2019-01-04 | 2019-06-25 | 콘티넨탈 오토모티브 시스템 주식회사 | 캠 제어 장치 및 방법 |
Citations (2)
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JP2007315379A (ja) * | 2006-04-26 | 2007-12-06 | Denso Corp | ベーン式の可変バルブタイミング調整機構の制御装置 |
JP4947499B2 (ja) * | 2009-06-30 | 2012-06-06 | 株式会社デンソー | 内燃機関の可変バルブタイミング制御装置 |
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US6792902B2 (en) | 2002-04-22 | 2004-09-21 | Borgwarner Inc. | Externally mounted DPCS (differential pressure control system) with position sensor control to reduce frictional and magnetic hysteresis |
US6938592B2 (en) | 2002-06-17 | 2005-09-06 | Borgwarner Inc. | Control method for electro-hydraulic control valves over temperature range |
JP4171036B2 (ja) * | 2006-09-14 | 2008-10-22 | トヨタ自動車株式会社 | 可変バルブタイミング装置 |
KR100999619B1 (ko) * | 2008-05-14 | 2010-12-08 | 현대자동차주식회사 | 엔진 오일 모니터링 장치 |
JP5270525B2 (ja) * | 2009-12-22 | 2013-08-21 | 日立オートモティブシステムズ株式会社 | 制御弁装置 |
JP5143877B2 (ja) * | 2010-09-21 | 2013-02-13 | 日立オートモティブシステムズ株式会社 | バルブタイミング可変機構の制御装置 |
CN102052115A (zh) * | 2010-12-01 | 2011-05-11 | 成都恒高机械电子有限公司 | 整体成型的连续可变气门正时燃油控制阀 |
CN102042050A (zh) * | 2010-12-01 | 2011-05-04 | 成都恒高机械电子有限公司 | 连续可变气门正时燃油控制阀 |
CN202467956U (zh) * | 2011-12-29 | 2012-10-03 | 罗建民 | 汽车发动机连续可变气门正时控制器 |
-
2014
- 2014-11-25 KR KR1020140164881A patent/KR101646386B1/ko active Active
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2015
- 2015-05-22 US US14/720,689 patent/US9890668B2/en active Active
- 2015-06-12 CN CN201510325655.0A patent/CN106199728B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007315379A (ja) * | 2006-04-26 | 2007-12-06 | Denso Corp | ベーン式の可変バルブタイミング調整機構の制御装置 |
JP4947499B2 (ja) * | 2009-06-30 | 2012-06-06 | 株式会社デンソー | 内燃機関の可変バルブタイミング制御装置 |
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US9890668B2 (en) | 2018-02-13 |
KR20160063435A (ko) | 2016-06-07 |
CN106199728A (zh) | 2016-12-07 |
CN106199728B (zh) | 2019-05-28 |
US20160146071A1 (en) | 2016-05-26 |
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