CN106640386B - A kind of method and device of CVVL self study - Google Patents
A kind of method and device of CVVL self study Download PDFInfo
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- CN106640386B CN106640386B CN201510727063.1A CN201510727063A CN106640386B CN 106640386 B CN106640386 B CN 106640386B CN 201510727063 A CN201510727063 A CN 201510727063A CN 106640386 B CN106640386 B CN 106640386B
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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
- F02D13/0207—Variable control of intake and exhaust valves changing valve lift or valve lift and timing
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- 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
- Y02T10/12—Improving ICE efficiencies
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The present invention provides a kind of method and devices of CVVL self study, are related to automobile technical field, and the technical issues of CVVL self study caused by stall fails occurs to solve control motor.The method of CVVL self study of the present invention includes: that control motor of the electronic control unit into engine issues study instruction；Vehicle power on or vehicle under electricity when, it controls motor and receives study instruction, CVVL self study is carried out, minimum valve lift location and middle valve lift location are learnt, middle valve lift location is the valve lift location between maximum valve lift position and minimum valve lift location；The minimum valve lift location learnt in CVVL self study and middle valve lift location are fed back to electronic control unit by feedback unit.The method of CVVL self study of the present invention can be avoided control motor and the failure of CVVL self study caused by stall occur.
Description
Technical field
The present invention relates to automobile technical field, in particular to a kind of method and device of CVVL self study.
Background technique
With the raising that the continuous consumption and motor vehicle emission of the energy require, the engine power performance of vehicle, economy and
Discharge amount becomes the emphasis of concern.Due to CVVL (Continuously variable valve lift, continuous variable valve
Lift) system can change valve stroke according to the needs of Different Work Condition of Engine, the loss of pump gas and frictional dissipation are reduced, from
And oil consumption is reduced, the power of engine is improved, therefore, CVVL system being applied to for new trend in the car.
Since structure is complicated for CVVL system mechanics, air input of engine by air is controlled by valve stroke, needs to guarantee
Valve stroke controls precision and air inlet measurement accuracy, to guarantee the stability of CVVL system.In order to guarantee valve stroke control
Precision processed and air inlet measurement accuracy, CVVL system requires to carry out CVVL self study before each energization starting, i.e., to CVVL
The function and valve lift location of system are checked and are recorded.But in the prior art, if when engine stop, vehicle
For the valve of middle cylinder close to full open position, CVVL system carries out CVVL self study, ascending adjustings liter of control motor
Journey controls motor in the process and needs to overcome resistance, it is also necessary to overcome the returning place force of valve spring, control motor needs to export
Very big driving force, so that the driving moment of control motor is excessive, stall occurs for control motor, out of service, then CVVL
Self study failure.
Summary of the invention
In view of this, the present invention is directed to propose a kind of method of CVVL self study, occurs stall to avoid control motor and draws
The CVVL self study failure risen.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of method of CVVL self study, the method for the CVVL self study include:
Control motor of the electronic control unit into engine issues study instruction, and the study instruction is described for triggering
It controls motor and carries out continuously variable valve lift CVVL self study；
Vehicle power on or vehicle under electricity when, the control motor receives the study and instructs, and carries out the CVVL self-study
It practises, learns minimum valve lift location and middle valve lift location, the middle valve lift location is maximum valve lift
Valve lift location between position and the minimum valve lift location；
Feedback unit is by the minimum valve lift location learnt in the CVVL self study and the middle valve
Lift location feeds back to the electronic control unit.
Specifically, the control motor carries out the CVVL self study, learn the minimum valve lift location and described
The step of middle valve lift location includes:
The control motor learns from the middle valve lift location to the minimum valve lift location；
The control motor is from the minimum valve lift location study to the middle valve lift location.
Further, the method for the CVVL self study further include:
When the control motor carries out CVVL self study failure, the engine uses the middle valve lift
Position starting；
The control motor re-starts the CVVL self study.
Further, the method for the CVVL self study further include:
When engine powers on for the first time, the control motor receives the study instruction, carries out the CVVL self study, from
Initial valve lift location learns to the minimum valve lift location；
The control motor is from the minimum valve lift location study to maximum valve lift position；
The control motor learns from the maximum valve lift position to the middle valve lift location；
Feedback unit is by the minimum valve lift location learnt in the CVVL self study, the maximum valve liter
Journey position and the middle valve lift location feed back to the electronic control unit.
Further, the method for the CVVL self study further include:
When the control motor carries out CVVL self study failure, the engine carries out jiggering, and adjusts cam
The position of axis；
The control motor re-starts the CVVL self study.
Compared with the existing technology, the method for CVVL self study of the present invention has the advantage that
In the method for CVVL self study of the present invention, vehicle power on or vehicle under electricity when, control motor receive electricity
The study instruction that sub-control unit is sent, carries out CVVL self study, learns minimum valve lift location and middle valve lift position
It sets, compared with the method for the ascending CVVL self study for adjusting lift of control motor in the prior art, the present invention is on vehicle
Under electricity or vehicle when electricity, if the valve of engine stop and cylinder, close to full open position, control motor progress is minimum
The study of valve lift location and middle valve lift location, and the study without maximum valve lift position, therefore, control
The driving force of motor output is smaller, so that the driving moment of control motor is smaller, can't cause control motor and stall occurs, from
And it avoids control motor that CVVL self study caused by stall occurs and fails.
Another object of the present invention is to propose a kind of device of CVVL self study, to avoid control motor driving moment mistake
Greatly, the failure of CVVL self study caused by stall occurs for control motor.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of device of CVVL self study, the device of the CVVL self study includes electronic control unit, control motor and
Feedback unit；The electronic control unit, the control motor are connected two-by-two with the feedback unit；
The electronic control unit is used to issue study instruction to the control motor, and the study instruction is for triggering
It states control motor and carries out continuously variable valve lift CVVL self study；
Vehicle power on or vehicle under electricity when, the control motor is instructed for receiving the study, carries out the CVVL
Self study, learns minimum valve lift location and middle valve lift location, and the middle valve lift location is maximum valve
Valve lift location between lift location and the minimum valve lift location；
The minimum valve lift location of the feedback unit for that will learn in the CVVL self study and described
Middle valve lift location feeds back to the electronic control unit.
Specifically, the control motor is specifically used for from middle valve lift location study to the minimum valve liter
Journey position；Also particularly useful for from the minimum valve lift location study to the middle valve lift location.
Further, when the control motor carries out CVVL self study failure, the engine is used to use institute
State the starting of middle valve lift location；
The control motor is for re-starting the CVVL self study.
Further, when engine powers on for the first time, the control motor is instructed for receiving the study, described in progress
CVVL self study, from the study of initial valve lift location to the minimum valve lift location；It is also used to from the minimum valve
Lift location learns to maximum valve lift position；It is also used to learn from the maximum valve lift position to the middle valve
Lift location；
Feedback unit is used for the minimum valve lift location, the most atmosphere that will learn in the CVVL self study
Door lift location and the middle valve lift location feed back to the electronic control unit.
Further, the control motor is located in the engine；When the control motor carries out the CVVL self-study
When practising failure, the engine adjusts the position of camshaft for carrying out jiggering；
The control motor is for re-starting the CVVL self study.
Compared with the existing technology, the device of CVVL self study of the present invention has the advantage that
The method of the device of the CVVL self study and above-mentioned CVVL self study compared with the existing technology possessed by advantage
Identical, details are not described herein.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the method for CVVL self study described in the embodiment of the present invention one；
Fig. 2 is the flow chart of the method for CVVL self study described in the embodiment of the present invention two；
Fig. 3 is the structural schematic diagram of the device of CVVL self study described in the embodiment of the present invention three.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment one
Referring to Fig. 1, the embodiment of the invention provides a kind of method of CVVL self study, the method packet of the CVVL self study
It includes:
Step 101, control motor of the electronic control unit into engine issues study instruction；Wherein, study instruction is used
Continuously variable valve lift CVVL self study is carried out in triggering control motor, control motor starts after receiving study instruction
Carry out CVVL self study.
Step 102, vehicle power on or vehicle under electricity when, control motor receive study instruction, carry out CVVL self study, learn
Practise minimum valve lift location and middle valve lift location；Middle valve lift location is maximum valve lift position and minimum
Valve lift location between valve lift location, specifically, middle valve lift location is to be located at maximum valve lift position
With the lift location among minimum valve lift location, middle valve lift location is also that valve is normally at vehicle in operation
Valve lift location, for example in specific implementation, middle valve lift location can be 5mm valve lift location.
Step 103, feedback unit is by the minimum valve lift location learnt in CVVL self study and middle valve lift
Position feedback electron control unit；Electronic control unit receives the minimum valve lift location and intermediate gas of feedback unit feedback
Door lift location, and record, so that the process of entire CVVL self study is completed, specifically, feedback unit can be lift sensing
Device.After completing CVVL self study and CVVL self study success, valve lift location is maintained at middle valve lift location and awaits orders,
Engine is started using middle valve lift location, is convenient for engine cold-start, be can be realized rapid warming-up.
In the method for CVVL self study of the present invention, vehicle power on or vehicle under electricity when, control motor receive electricity
The study instruction that sub-control unit is sent, carries out CVVL self study, learns minimum valve lift location and middle valve lift position
It sets, compared with the method for the ascending CVVL self study for adjusting lift of control motor in the prior art, the present invention is on vehicle
Under electricity or vehicle when electricity, if the valve of engine stop and cylinder, close to full open position, control motor progress is minimum
The study of valve lift location and middle valve lift location, and the study without maximum valve lift position, therefore, control
The driving force of motor output is smaller, so that the driving moment of control motor is smaller, can't cause control motor and stall occurs, from
And it avoids control motor that CVVL self study caused by stall occurs and fails.Moreover, because when vehicle powers on adequately into
Gone CVVL self study, and in vehicle operation with minimum valve lift location, the middle valve liter in vehicle power up
Journey position is essentially identical, therefore can save the CVVL self study process in vehicle operation.
Embodiment two
Referring to Fig. 2, further, learning minimum valve lift location and middle valve in order to which control motor is described in detail
The content of lift location, step 102 can be refined as step 1021 and step 1022；Vehicle power on or vehicle under electricity when, also
It is possible that, so that CVVL self study fails, in order to re-start CVVL self study, guaranteeing that CVVL is learnt by oneself because of other factors
It practises successfully, step 104 and step 105 can also be added on the basis of example 1；It powers in engine, does not install for the first time also
When on to vehicle, control motor, which is also required to progress CVVL self study, can also add step 106- on the basis of example 1
Step 109；If CVVL self study fails when engine powers on for the first time, in order to re-start CVVL self study, and guarantee
CVVL self study success, can also add step 110 and step 111；It is as follows to illustrate content:
Step 1021, vehicle power on or vehicle under electricity when, control motor receives study instruction, and control motor is from intermediate gas
Door lift location learns to minimum valve lift location；Due to being powered in vehicle, it is electric in vehicle operation or under vehicle when, hair
Motivation generally all in using middle valve lift location operating state in, therefore vehicle power on or vehicle under electricity when, control
Motor learns since intermediate valve lift location, adjusts lift from large to small, until minimum valve lift location is arrived in study.
Step 1022, control motor learns from minimum valve lift location to middle valve lift location；In step 1021
In, control motor learns from intermediate valve lift location to minimum valve lift location, in step 1022, control electricity
Machine learns from minimum valve lift location to middle valve lift location, maintains the engine at using middle valve lift location
The state of operating.
Step 104, when controlling motor progress CVVL self study failure, engine is opened using middle valve lift location
It is dynamic；Wherein, when control motor occurs extremely, causing CVVL self study to fail, then engine during carrying out CVVL self study
Started using middle valve lift location, CVVL self study is re-started in engine idling operation, guarantees that engine can
It runs well.
Step 105, control motor re-starts CVVL self study；It should be noted that carried out when vehicle powers on
CVVL self study failure, control motor re-start CVVL self study and refer in engine idling operation, and control motor is fast
Speed learns from intermediate valve lift location to minimum valve lift location, then from the study of minimum valve lift location to maximum valve
Lift location, then from the study of maximum valve lift position to middle valve lift location；The CVVL carried out when electric under vehicle is certainly
Study failure, control motor re-start CVVL self study and refer to that control motor learns from intermediate valve lift location to most
Small valve lift location, then from the study of minimum valve lift location to middle valve lift location；It is learnt by oneself re-starting CVVL
After habit, the state operated using middle valve lift location is maintained the engine at, guarantees normal working of engine.It is worth mentioning
If the CVVL self study failure carried out again, repeatedly step 104 and step 105, until CVVL self study success.
Step 106, when engine powers on for the first time, control motor receives study instruction, CVVL self study is carried out, from initial
Valve lift location learns to minimum valve lift location；When engine powers on for the first time, valve is located on an initial position,
The initial position is exactly initial valve lift location, and therefore, when engine powers on for the first time, CVVL self study is from initial valve
What lift location started.
Step 107, control motor learns from minimum valve lift location to maximum valve lift position.
Step 108, control motor learns from maximum valve lift position to middle valve lift location.It should be noted that
It is, after control motor learns minimum valve lift location, maximum valve lift position, the success of middle valve lift location, weight
It is multiple to learn from initial valve lift location to minimum valve lift location, from the study of minimum valve lift location to maximum valve liter
Journey position and the step of from the study of maximum valve lift position to middle valve lift location, is confirmed, guarantee CVVL from
Study has succeeded.
Step 109, feedback unit is by the minimum valve lift location learnt in CVVL self study, maximum valve lift position
It sets and feeds back to electronic control unit with middle valve lift location；It carries out learning in CVVL self study when engine powers on for the first time
Minimum valve lift location, maximum valve lift position and the middle valve lift location arrived can become subsequent engine and install
After on to vehicle, vehicle power on or vehicle under electricity when carry out CVVL self study basis.
Step 110, when controlling motor progress CVVL self study failure, engine carries out jiggering, and adjusts camshaft
Position；When engine powers on for the first time, and control motor carries out CVVL self study failure, since the camshaft in engine is for controlling
The opening and closing of valve processed act, therefore the CVVL that occurs of when engine powers on for the first time is likely to be caused by camshaft,
Therefore jiggering is carried out, the position of camshaft in engine is adjusted, in order to re-start CVVL self study in the follow-up process.
Step 111, control motor re-starts CVVL self study；It should be noted that here re-start CVVL from
Study refers to that control motor learns from initial valve lift location to minimum valve lift location, from minimum valve stroke position
Study is set to maximum valve lift position and from the study of maximum valve lift position to middle valve lift location.It is worth mentioning
If the CVVL self study failure carried out again, repeatedly step 110 and step 111, until CVVL self study success.
By repeatedly learning, confirming minimum valve stroke during engine powers on progress CVVL self study for the first time
Position, maximum valve lift position and middle valve lift location, to guarantee the Stability and veracity of CVVL self study.This
Inventive embodiments are powered on for the first time in engine, vehicle powers on (containing vehicle operation), are carried out under the operating conditions such as electricity under vehicle
VCCL self study guarantees that CVVL self study can be normally carried out under the different operating conditions of engine.
In the prior art, if control motor carries out CVVL self study failure, enter fault mode, it on the one hand can not be again
Secondary carry out self study so that CVVL system can not normal use, on the other hand, into fault mode after can be switched to air throttle
Air inflow is controlled, and air throttle is compared with valve, throttle control air inflow will increase oil consumption.Therefore, provided by the invention
CVVL self-learning method will do it corresponding adjustment, re-start CVVL self study, to avoid in CVVL self study failure
Into fault mode, it on the one hand can guarantee the normal use of CVVL system and the stability of CVVL self study, on the other hand,
Oil consumption, save the cost can be reduced.
Embodiment three
Referring to Fig. 3, the embodiment of the invention provides a kind of device 200 of CVVL self study, the dress of the CVVL self study
Setting 200 includes electronic control unit 201, controls motor 202 and feedback unit 203, and control motor 202 is located in engine 204,
Wherein, electronic control unit 201, control motor 202 are connected two-by-two with feedback unit 203.
Electronic control unit 201 is used to issue study instruction to control motor 202, and study instruction is for triggering control motor
202 carry out CVVL self study；
Vehicle power on or vehicle under electricity when, control motor 202 for receive study instruction, carry out CVVL self study, learn
Minimum valve lift location and middle valve lift location are practised, middle valve lift location is maximum valve lift position and minimum
Valve lift location between valve lift location；
Feedback unit 203 is used for the minimum valve lift location learnt in CVVL self study and middle valve lift position
It sets and feeds back to electronic control unit 201.
The illustrating of each component part in the device 200 of CVVL self study can refer in specific in embodiment one
Hold, details are not described herein.
In the device 200 of CVVL self study of the present invention, vehicle power on or vehicle under electricity when, control motor 202
The study instruction that electronic control unit 201 is sent is received, CVVL self study is carried out, learns minimum valve lift location and intermediate gas
Door lift location, compared with the method for the ascending CVVL self study for adjusting lift of control motor 202 in the prior art, this hair
It is bright vehicle power on or vehicle under electricity when, if the valve of engine stop and cylinder close to full open position, controls motor 202
What is carried out is the study of minimum valve lift location and middle valve lift location, and without maximum valve lift position
It practises, therefore, the driving force that control motor 202 exports is smaller, so that the driving moment for controlling motor 202 is smaller, can't cause
It controls motor 202 and stall occurs, fail to avoid control motor 202 that CVVL self study caused by stall occurs.
Example IV
Further, below by the tool to each component part in the device 200 of the CVVL self study in embodiment three
Body function is illustrated:
Specifically, control motor 202 is specifically used for from the study of intermediate valve lift location to minimum valve lift location；Also
Specifically for from the study of minimum valve lift location to middle valve lift location.
Further, when controlling the progress CVVL self study failure of motor 202, engine 204 is used to use middle valve
Lift location starting；
Control motor 202 is for re-starting CVVL self study.
Further, when engine 204 powers on for the first time, control motor 202 is used to receive study instruction, carries out CVVL certainly
Study, from the study of initial valve lift location to minimum valve lift location；Be also used to from minimum valve lift location learn to
Maximum valve lift position；It is also used to learn from maximum valve lift position to middle valve lift location；
Feedback unit 203 for will learn in CVVL self study minimum valve lift location, maximum valve lift position
It sets and feeds back to electronic control unit 201 with middle valve lift location.
Further, when controlling the progress CVVL self study failure of motor 202, engine 204 is adjusted for carrying out jiggering
The position of whole camshaft；
Control motor 202 is for re-starting CVVL self study.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Certainly especially for CVVL
For the embodiment of the device of study, since it is substantially similar to the method embodiment, so describe fairly simple, related place
Illustrate referring to the part of embodiment of the method.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of method of CVVL self study, which is characterized in that the method for the CVVL self study includes:
Control motor of the electronic control unit into engine issues study instruction, and the study instruction is for triggering the control
Motor carries out continuously variable valve lift CVVL self study；
Vehicle power on or vehicle under electricity when, the control motor receives the study and instructs, and carries out the CVVL self study,
Practise minimum valve lift location and middle valve lift location, the middle valve lift location be maximum valve lift position with
Valve lift location between the minimum valve lift location；
Feedback unit is by the minimum valve lift location learnt in the CVVL self study and the middle valve lift
Position feedback gives the electronic control unit.
2. the method for CVVL self study according to claim 1, which is characterized in that the control motor carries out the CVVL
Self study, the step of learning the minimum valve lift location and the middle valve lift location include:
The control motor learns from the middle valve lift location to the minimum valve lift location；
The control motor is from the minimum valve lift location study to the middle valve lift location.
3. the method for CVVL self study according to claim 2, which is characterized in that the method for the CVVL self study is also wrapped
It includes:
When the control motor carries out CVVL self study failure, the engine uses the middle valve lift location
Starting；
The control motor re-starts the CVVL self study.
4. the method for CVVL self study according to claim 1, which is characterized in that the method for the CVVL self study is also wrapped
It includes:
When engine powers on for the first time, the control motor receives the study and instructs, and carries out the CVVL self study, from initial
Valve lift location learns to the minimum valve lift location；
The control motor is from the minimum valve lift location study to the maximum valve lift position；
The control motor learns from the maximum valve lift position to the middle valve lift location；
The minimum valve lift location, the maximum valve lift position that feedback unit will learn in the CVVL self study
It sets and feeds back to the electronic control unit with the middle valve lift location.
5. the method for CVVL self study according to claim 4, which is characterized in that the method for the CVVL self study is also wrapped
It includes:
When the control motor carries out CVVL self study failure, the engine carries out jiggering, and adjusts camshaft
Position；
The control motor re-starts the CVVL self study.
6. a kind of device of CVVL self study, which is characterized in that the device of the CVVL self study includes electronic control unit, control
Motor and feedback unit processed；The electronic control unit, the control motor are connected two-by-two with the feedback unit；
The electronic control unit is used to issue study instruction to the control motor, and the study instruction is for triggering the control
Motor processed carries out continuously variable valve lift CVVL self study；
Vehicle power on or vehicle under electricity when, the control motor is instructed for receiving the study, carries out the CVVL self-study
It practises, learns minimum valve lift location and middle valve lift location, the middle valve lift location is maximum valve lift
Valve lift location between position and the minimum valve lift location；
The feedback unit is used for the minimum valve lift location learnt in the CVVL self study and the centre
Valve lift location feeds back to the electronic control unit.
7. the device of CVVL self study according to claim 6, which is characterized in that the control motor is specifically used for from institute
The study of middle valve lift location is stated to the minimum valve lift location；Also particularly useful for from the minimum valve lift location
Learn to the middle valve lift location.
8. the device of CVVL self study according to claim 7, which is characterized in that described in being carried out when the control motor
When CVVL self study fails, engine is used to start using the middle valve lift location；
The control motor is for re-starting the CVVL self study.
9. the device of CVVL self study according to claim 6, which is characterized in that described when engine powers on for the first time
Control motor carries out the CVVL self study, learns from initial valve lift location to described for receiving the study instruction
Minimum valve lift location；It is also used to from the minimum valve lift location study to maximum valve lift position；Be also used to from
The maximum valve lift position learns to the middle valve lift location；
The minimum valve lift location, the maximum valve liter of the feedback unit for that will learn in the CVVL self study
Journey position and the middle valve lift location feed back to the electronic control unit.
10. the device of CVVL self study according to claim 9, which is characterized in that the control motor is located at the hair
In motivation；When the control motor carries out CVVL self study failure, the engine adjusts convex for carrying out jiggering
The position of wheel shaft；
The control motor is for re-starting the CVVL self study.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108561231B (en) * | 2017-06-09 | 2020-09-04 | 长城汽车股份有限公司 | Control strategy for continuously variable valve lift mechanism |
| CN109030006B (en) * | 2017-06-09 | 2021-03-19 | 长城汽车股份有限公司 | Detection method and system of continuous variable valve lift mechanism |
| KR102529454B1 (en) * | 2018-08-30 | 2023-05-08 | 현대자동차주식회사 | Method for CVVD Position Learning Based On Conditional Application and Continuously Variable Valve Duration System Thereof |
| CN110685830B (en) * | 2019-09-30 | 2021-05-18 | 潍柴动力股份有限公司 | Method, device, equipment and storage medium for detecting excessive valve control deviation |
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| CN101680369A (en) * | 2007-05-24 | 2010-03-24 | 丰田自动车株式会社 | Internal combustion engine control apparatus and control method thereof |
| KR20130133947A (en) * | 2012-05-30 | 2013-12-10 | 콘티넨탈 오토모티브 시스템 주식회사 | Apparatus and method for daigonising vlave lift of cvvl |
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| CN1654790A (en) * | 2004-02-13 | 2005-08-17 | 日产自动车株式会社 | Learning apparatus and method for variable valve control of internal combustion engine |
| CN1690390A (en) * | 2004-04-26 | 2005-11-02 | 日产自动车株式会社 | Variable valve control system and method for multi-cylinder internal combustion engine |
| CN101410608A (en) * | 2006-03-30 | 2009-04-15 | 丰田自动车株式会社 | Variable valve timing apparatus |
| CN101680369A (en) * | 2007-05-24 | 2010-03-24 | 丰田自动车株式会社 | Internal combustion engine control apparatus and control method thereof |
| KR20130133947A (en) * | 2012-05-30 | 2013-12-10 | 콘티넨탈 오토모티브 시스템 주식회사 | Apparatus and method for daigonising vlave lift of cvvl |
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