CN106150723A - A kind of stopping process idle speed control for having start and stop function electromotor - Google Patents
A kind of stopping process idle speed control for having start and stop function electromotor Download PDFInfo
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- CN106150723A CN106150723A CN201610647979.0A CN201610647979A CN106150723A CN 106150723 A CN106150723 A CN 106150723A CN 201610647979 A CN201610647979 A CN 201610647979A CN 106150723 A CN106150723 A CN 106150723A
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- Prior art keywords
- electromotor
- idling
- engine
- stopping process
- timing
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Classifications
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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
- 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
- F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
-
- 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
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/023—Temperature of lubricating oil or working fluid
-
- 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
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The present invention proposes a kind of stopping process idle speed control for having start and stop function electromotor; it comprises the following steps: judge whether electromotor is in idling mode; when confirming that electromotor is in idling mode; carry out idling timing; idling timing DT1 is compared with preset value DT, shuts down control according to comparative result accordingly；When confirming that electromotor is not at idling mode, it is judged that whether described electromotor meets engine stop condition；If it is satisfied, then gather engine speed, cooling water temperature, the information of supercharger oil temperature, and carry out different idling timing according to described electromotor different conditions；After idling timing terminates, again judge whether to meet engine stop condition, and carry out respective handling.The composite can be widely applied to the vehicle with start and stop function, effectively solve to shut down and electromotor that unrestricted frequent start-stop causes and supercharger fault because the biggest load of electromotor stops working, reduce engine failure rate, promote car load fuel economy simultaneously.
Description
Technical field
The present invention relates to new energy field, particularly relate to a kind of stopping process idling for having start and stop function electromotor
Control method.
Background technology
Have at present after the vehicle of start and stop function reaches burn-out condition and big load, quick shutdown easily occur, be unfavorable for starting
Machine, the lubrication of supercharger, cooling, produce damage and fault.Under some special operation condition, electromotor high frequency time start and stop, add
Fuel oil consumes and electromotor, the loss of supercharger.
" halt control method of automobile engine and the device " of Publication No. 105235679A, it is proposed that a kind of automobile is sent out
The halt control method of motivation, is sliding or electromotor is taked suitable oil-break to shut down strategy by damped condition, is reducing electromotor
The impact that car load power train is brought by high rotating speed stopping process.Specifically, after meeting halt condition, perform electromotor fall moment of torsion and
Clutch separation, performs the first oil-break operation, when rotating speed as little as idling point range, recovers engine oil after being kept completely separate,
After dead time reaches very first time threshold value, electromotor is performed the second oil-break operation, makes engine free shut down.Its main pin
During to high speed slide or braking, electromotor is carried out twice fuel cut-off control, put out after carrying out idling threshold value timing when rotating speed drops to idling
Fire.Idling threshold value sets and determines according only to engine water temperature, does not considers that engine speed, turbocharger condition etc. consider, idle
The speed time may be long or too short, affects economy and maybe can not adequately protect electromotor.
Summary of the invention
Due in prior art, electromotor big load quick shutdown causes electromotor, supercharger lubrication, cools down bad, makes
Become to damage even fault, affect automobile reliability；Under some operating mode, the electromotor start and stop frequency is too high, causes starting fuel oil consumption and surpasses
Cross certain time idling to consume, reduce car load economy, also exacerbate engine scuffing simultaneously, reduce the life-span；Existing stop
Machine process comprises the strategy of engine idle, does not proposes concrete stopping process idle speed control.
For the problems referred to above, the present invention proposes new shutdown control strategy, and after halt condition meets, entire car controller passes through
CAN line reads engine speed, water temperature and supercharger oil temperature, judges present engine state, calculates correspondence
The engine idle time, (this dead time obtained by testing under electromotor different conditions, and it is right to shut down under different engine conditions
Electromotor and supercharger damage effect are different, and corresponding dead time is different), after idling terminates, it is judged that halt condition continues to meet
Then engine misses.
It is an object of the invention to be achieved through the following technical solutions.
The present invention proposes a kind of stopping process idle speed control for having start and stop function electromotor, it include with
Lower step:
Step 101, judge whether electromotor is in idling mode, when confirming that electromotor is in idling mode, walk
Rapid 103, when confirming that electromotor is not at idling mode, carry out step 105；
Step 103, carry out idling timing, idling timing DT1 is compared with preset value DT, carries out according to comparative result
Shut down control accordingly；
Step 105, judge whether described electromotor meets engine stop condition；
Step 107 if it is satisfied, then gather engine speed, cooling water temperature, the information of supercharger oil temperature, and
Different idling timing is carried out according to described electromotor different conditions；
After step 109, idling timing terminate, again judge whether to meet engine stop condition, and carry out respective handling.
Wherein, step 103 specifically includes:
If DT1 is DT, then continues to determine whether to meet engine stop condition, if it is satisfied, then clutch separation, be
System sends halt instruction.
Wherein, step 103 specifically also includes:
If DT1 < DT, then continuing to determine whether to meet engine stop condition, if be unsatisfactory for, then terminating to shut down,
If it is satisfied, set idling time difference △ DT=DT-DT1, after idling timing is maintained △ DT, judgement is the most again
No still meeting halt condition, if being unsatisfactory for, terminating stopping process, if meeting, sending halt instruction, engine free is stopped working,
Whole stopping process terminates.
Wherein, step 107 carries out different idling timing according to described electromotor different conditions to specifically include: according to starting
The map listing of machine rotating speed, cooling water temperature, supercharger oil temperature and dead time obtains the dead time under this kind of state.
Wherein, step 109 is particularly as follows: after the corresponding dead time of idling timing, again judge whether that meeting electromotor shuts down
Condition, if being unsatisfactory for, terminates stopping process, if meeting, shuts down by stopping fuel supply or the mode of misfiring, and electromotor is certainly
By stopping working, whole stopping process terminates.
Wherein, engine stop condition includes: throttle is not stepped on, electrokinetic cell electricity is higher than setting value, engine water temperature
Higher than setting value, car load braking pressure higher than arranging value or brake vacuum pump vacuum meets vacuum, asks or car without air-conditioning
Speed is less than setting value.
It is an advantage of the current invention that:
The present invention proposes idle speed control and dead time in electromotor stopping process and determines method；
According to engine operating state, regulation is shut down dead time, is suitable for the various state of electromotor, it is ensured that electromotor,
Supercharger stops working process total energy good lubrication and cooling, reduces damage, increases the service life and improve reliability；
Control by shutting down dead time, high frequency time in a part of electromotor very short time can be covered in dead time
Start and stop operating mode, reduces the electromotor start and stop frequency, alleviates electromotor and supercharger damage, reduces high frequency start and stop fuel oil simultaneously and consumes,
Promote economy.
The composite can be widely applied to the vehicle with start and stop function, can effectively solve because the biggest load of electromotor stops working
Shut down and electromotor that unrestricted frequent start-stop causes and supercharger fault, reduce engine failure rate, reduce after cost and
Client complains, promotes car load fuel economy simultaneously.
Accompanying drawing explanation
By reading the detailed description of hereafter preferred implementation, various other advantage and benefit common for this area
Technical staff will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred implementation, and is not considered as the present invention
Restriction.And in whole accompanying drawing, it is denoted by the same reference numerals identical parts.In the accompanying drawings:
Accompanying drawing 1 shows the stopping process idling control for having start and stop function electromotor according to embodiment of the present invention
Method flow diagram processed.
Detailed description of the invention
It is more fully described the illustrative embodiments of the disclosure below with reference to accompanying drawings.Although accompanying drawing shows these public affairs
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure and the reality that should not illustrated here
The mode of executing is limited.On the contrary, it is provided that these embodiments are able to be best understood from the disclosure, and can be by these public affairs
What the scope opened was complete conveys to those skilled in the art.
The present invention is applicable to the vehicle with start and stop function, is mainly judged by electromotor state before stop, and corresponding choosing
Select shutdown dead time, thus realize shutting down idle speed control.
Wherein, vehicle start and stop function refers to that (such as speed is less than the vehicle with start and stop function when meeting halt condition
Setting value, reasonable match disconnects, and vehicle is without engine demand) electromotor auto extinguishing, to save fuel consumption, work as inspection
When measuring traveling intention or other engine demand, starter drags electromotor and quickly starts, electromotor intervention work.
The present invention proposes a kind of stopping process idle speed control for having start and stop function electromotor, it include with
Lower step:
Step 101, judge whether electromotor is in idling mode, when confirming that electromotor is in idling mode, walk
Rapid 103, when confirming that electromotor is not at idling mode, carry out step 105；
Step 103, carry out idling timing, idling timing DT1 is compared with preset value DT, carries out according to comparative result
Shut down control accordingly；
Step 105, judge whether described electromotor meets engine stop condition；
Step 107 if it is satisfied, then gather engine speed, cooling water temperature, the information of supercharger oil temperature, and
Different idling timing is carried out according to described electromotor different conditions；
After step 109, idling timing terminate, again judge whether to meet engine stop condition, and carry out respective handling.
Wherein, step 103 specifically includes:
If DT1 is DT, then continues to determine whether to meet engine stop condition, if it is satisfied, then clutch separation, be
System sends halt instruction.
Wherein, step 103 specifically also includes:
If DT1 < DT, then continuing to determine whether to meet engine stop condition, if be unsatisfactory for, then terminating to shut down,
If it is satisfied, set idling time difference △ DT=DT-DT1, after idling timing is maintained △ DT, judgement is the most again
No still meeting halt condition, if being unsatisfactory for, terminating stopping process, if meeting, sending halt instruction, engine free is stopped working,
Whole stopping process terminates.
Wherein, step 107 carries out different idling timing according to described electromotor different conditions to specifically include: according to starting
The map listing of machine rotating speed, cooling water temperature, supercharger oil temperature and dead time obtains the dead time under this kind of state.
Wherein, step 109 is particularly as follows: after the corresponding dead time of idling timing, again judge whether that meeting electromotor shuts down
Condition, if being unsatisfactory for, terminates stopping process, if meeting, shuts down by stopping fuel supply or the mode of misfiring, and electromotor is certainly
By stopping working, whole stopping process terminates.
Wherein, engine stop condition includes: throttle is not stepped on, electrokinetic cell electricity is higher than setting value, engine water temperature
Higher than setting value, car load braking pressure higher than arranging value or brake vacuum pump vacuum meets vacuum, asks or car without air-conditioning
Speed is less than setting value.
Embodiment one,
It is illustrated in figure 1 a kind of stopping process for having start and stop function electromotor according to the embodiment of the present invention
Idle speed control, it comprises the following steps:
(1) S0 judges whether electromotor is in idling mode, if current state is idling, then enters S1 idling timing DT1,
If DT1 is more than or equal to preset value DT (determining dead time DT according to test, can effectively protect electromotor, supercharger), enter S2
Whether detection electromotor meets halt condition (includes that throttle is not stepped on, electrokinetic cell electricity is higher than setting value, engine water temperature is high
In setting value, car load braking pressure higher than value is set or brake vacuum pump vacuum meet vacuum, ask without air-conditioning, speed low
In setting value etc.), if being unsatisfactory for, then go out stopping process；If meeting, clutch separation, system sends halt instruction, by stopping
Only fuel supply or the mode of misfiring are shut down, and engine free is stopped working, and whole stopping process terminates；
(2) if idling timing DT1 is less than preset value DT, entering S3, detection electromotor the most still meets halt condition, if not
Satisfied then terminate stopping process；If meeting, entering S4, setting dead time △ DT=DT-DT1, enter idling timing and maintain △
After DT, again judging whether still to meet halt condition, if being unsatisfactory for, terminating stopping process, if meeting, sending halt instruction,
Engine free is stopped working, and whole stopping process terminates；
(3) S0 judges whether electromotor is in idling mode, if not idling mode, then enters S5 and judges whether satisfied stopping
Machine condition, if being unsatisfactory for, terminates stopping process；If meeting, clutch separation, enter S7, it is judged that engine condition, and corresponding
Dead time △ T1, △ T2, △ T3, △ T4 are set；After the idling timing corresponding time, again judge whether that meeting electromotor shuts down
Demand, if being unsatisfactory for, terminates stopping process, if meeting, shuts down by stopping fuel supply or the mode of misfiring, and electromotor is certainly
By stopping working, whole stopping process terminates.
Note: above-mentioned control process (1) and (2) are if purpose is to confirm that shutting down front engine has been in idling mode, it is to avoid
Repeat idle speed control, if dead time is less than setting value DT, then supply time difference, it is ensured that dead time is the most effectively protected
Electromotor and supercharger；
Engine condition determination methods is by control process (3): obtain engine speed, coolant water temperature by CAN
Degree and supercharger oil temperature (need to be at supercharger mounting temperature sensor) signal, consider electromotor and supercharger cold
But, lubricate impact, finally determine engine condition under current working, be divided into three kinds of states good, normal, severe, specific as follows:
A) according to engine speed, cooling water temperature, engine condition is carried out preliminary judgement, engine speed threshold is set
Engine speed is divided into basic, normal, high interval by value n1, n2, and usual engine speed is normally 800 ± 50RPM (rev/min), if
Putting engine water temperature threshold value ET1, ET2, engine coolant temperature is divided into basic, normal, high interval, both are comprehensive, and preliminary judgement is sent out
Motivational state is as shown in table 1.
Table 1 engine condition preliminary judgement
B) supercharger oil temperature threshold value ZT1, ZT2 are set, supercharger oil temperature are divided into basic, normal, high interval, and tie
Sentence result at the beginning of conjunction table 1 and obtain final engine condition, as shown in table 2.
Table 2 engine condition finally judges
C) engine test is passed through, it is thus achieved that three kinds of state correspondences shut down dead time △ T1, △ T2, △ T3, if state is sentenced
Fixed abnormal then acquiescence △ T4, as shown in table 3.
Table 3 engine condition is corresponding shuts down dead time
| Engine condition | Dead time (s) |
| Well | △T1 |
| Normally | △T2 |
| Badly | △T3 |
| Abnormal | △T4 |
Two threshold values of above water temperature and oil temperature can be obtained by the two of engine speed threshold values.And it is corresponding
△ T1, △ T2, △ T3, △ T4 are then obtained by experiment.
The present invention considers engine condition in stopping process, and non-immediate quick shutdown；Engine condition is based on starting
Machine rotating speed, cooling water temperature, supercharger oil temperature comprehensive descision, can more comprehensively, accurately cover electromotor various operating mode shape
State；Meanwhile, according to engine condition Proper Match dead time, both having avoided that dead time is too short cannot be to electromotor, supercharger
Adequately protect, can avoid again that dead time is long causes fuel economy to reduce, long realize electromotor, supercharger adequately protects
Take into account economy simultaneously.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, the change that can readily occur in or replacement,
All should contain within protection scope of the present invention.Therefore, protection scope of the present invention answers the described protection model with claim
Enclose and be as the criterion.
Claims (6)
1., for having a stopping process idle speed control for start and stop function electromotor, it comprises the following steps:
Step 101, judge whether electromotor is in idling mode, when confirming that electromotor is in idling mode, carry out step
103, when confirming that electromotor is not at idling mode, carry out step 105；
Step 103, carry out idling timing, idling timing DT1 is compared with preset value DT, carries out accordingly according to comparative result
Shut down and control；
Step 105, judge whether described electromotor meets engine stop condition；
Step 107 if it is satisfied, then gather engine speed, cooling water temperature, the information of supercharger oil temperature, and according to
Described electromotor different conditions carries out different idling timing；
After step 109, idling timing terminate, again judge whether to meet engine stop condition, and carry out respective handling.
2. as claimed in claim 1 for having the stopping process idle speed control of start and stop function electromotor, wherein step 103
Specifically include:
If DT1 is DT, then continuing to determine whether to meet engine stop condition, if it is satisfied, then clutch separation, system is sent out
Send halt instruction.
3. as claimed in claim 2 for having the stopping process idle speed control of start and stop function electromotor, wherein step 103
Specifically also include:
If DT1 < DT, then continuing to determine whether to meet engine stop condition, if be unsatisfactory for, then terminating to shut down,
If it is satisfied, set idling time difference △ DT=DT-DT1, after idling timing is maintained △ DT, the most again judge whether still
Meeting halt condition, if being unsatisfactory for, terminating stopping process, if meeting, sending halt instruction, engine free is stopped working, whole
Stopping process terminates.
4. as claimed in claim 1 for having the stopping process idle speed control of start and stop function electromotor, wherein step 107
Middle carry out different idling timing according to described electromotor different conditions and specifically include: according to engine speed, cooling water temperature, increasing
The map listing of depressor oil temperature and dead time obtains the dead time under this kind of state.
5. as claimed in claim 4 for having the stopping process idle speed control of start and stop function electromotor, wherein step 109
Particularly as follows: after the corresponding dead time of idling timing, again judge whether to meet engine stop condition, if being unsatisfactory for, terminate to stop
Machine process, if meeting, shuts down by stopping fuel supply or the mode of misfiring, and engine free is stopped working, and whole stopping process is tied
Bundle.
6. as claimed in claim 1 for having the stopping process idle speed control of start and stop function electromotor, wherein electromotor
Halt condition includes: throttle is not stepped on, electrokinetic cell electricity is braked higher than setting value, car load higher than setting value, engine water temperature
Air pressure is higher than arranging value or brake vacuum pump vacuum meets vacuum, asks without air-conditioning or speed is less than setting value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610647979.0A CN106150723A (en) | 2016-08-09 | 2016-08-09 | A kind of stopping process idle speed control for having start and stop function electromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610647979.0A CN106150723A (en) | 2016-08-09 | 2016-08-09 | A kind of stopping process idle speed control for having start and stop function electromotor |
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| CN106150723A true CN106150723A (en) | 2016-11-23 |
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| CN201610647979.0A Pending CN106150723A (en) | 2016-08-09 | 2016-08-09 | A kind of stopping process idle speed control for having start and stop function electromotor |
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Cited By (11)
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| CN106907251A (en) * | 2017-05-04 | 2017-06-30 | 潍柴动力股份有限公司 | A kind of Eng ine Idling Control method and system |
| CN108313059A (en) * | 2018-03-28 | 2018-07-24 | 浙江吉利汽车研究院有限公司 | Engine start-up and shut-down control method, apparatus and system |
| CN108644022A (en) * | 2018-05-14 | 2018-10-12 | 潍柴西港新能源动力有限公司 | A kind of natural gas engine heat shutdown detection control method |
| CN109026421A (en) * | 2018-08-17 | 2018-12-18 | 潍柴西港新能源动力有限公司 | Turbocharger Protection control system used for natural gas engine and its control method |
| CN109098867A (en) * | 2018-09-06 | 2018-12-28 | 奇瑞汽车股份有限公司 | Engine idle stop control system and its control method |
| CN109519287A (en) * | 2017-09-19 | 2019-03-26 | 郑州宇通客车股份有限公司 | A kind of Eng ine Idling Control method, system and vehicle |
| CN109681334A (en) * | 2018-11-02 | 2019-04-26 | 浙江吉利新能源商用车有限公司 | Control method, device and the vehicle of dual fuel engine start and stop |
| CN110641469A (en) * | 2019-09-30 | 2020-01-03 | 北京经纬恒润科技有限公司 | Engine start-stop control method and device |
| CN111022205A (en) * | 2019-11-20 | 2020-04-17 | 东风商用车有限公司 | Method for idle stop protection |
| CN112256538A (en) * | 2020-09-01 | 2021-01-22 | 北京航天控制仪器研究所 | Unmanned ship equipment information acquisition processing and control method |
| CN112639273A (en) * | 2018-08-30 | 2021-04-09 | 五十铃自动车株式会社 | Information output device and information output method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106907251A (en) * | 2017-05-04 | 2017-06-30 | 潍柴动力股份有限公司 | A kind of Eng ine Idling Control method and system |
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| CN112639273A (en) * | 2018-08-30 | 2021-04-09 | 五十铃自动车株式会社 | Information output device and information output method |
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| CN109681334A (en) * | 2018-11-02 | 2019-04-26 | 浙江吉利新能源商用车有限公司 | Control method, device and the vehicle of dual fuel engine start and stop |
| CN110641469A (en) * | 2019-09-30 | 2020-01-03 | 北京经纬恒润科技有限公司 | Engine start-stop control method and device |
| CN111022205A (en) * | 2019-11-20 | 2020-04-17 | 东风商用车有限公司 | Method for idle stop protection |
| CN112256538A (en) * | 2020-09-01 | 2021-01-22 | 北京航天控制仪器研究所 | Unmanned ship equipment information acquisition processing and control method |
| CN112256538B (en) * | 2020-09-01 | 2024-06-14 | 航天时代(青岛)海洋装备科技发展有限公司 | Unmanned ship equipment information acquisition processing and control method |
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Application publication date: 20161123 |