CN109184922A - Engine shutdown control system, control method and automobile - Google Patents
Engine shutdown control system, control method and automobile Download PDFInfo
- Publication number
- CN109184922A CN109184922A CN201811116614.0A CN201811116614A CN109184922A CN 109184922 A CN109184922 A CN 109184922A CN 201811116614 A CN201811116614 A CN 201811116614A CN 109184922 A CN109184922 A CN 109184922A
- Authority
- CN
- China
- Prior art keywords
- engine
- air intake
- control valve
- air
- control unit
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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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
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
- F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
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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
- F02D41/0002—Controlling intake air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/024—Increasing intake vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0245—Shutting down engine, e.g. working together with fuel cut-off
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
A kind of engine shutdown control system, control method and automobile, the control system includes control unit and air intake control valve, the air intake control valve is set between the engine air throttle and the air cleaner, control the connection between the air throttle and the air cleaner, the air intake control valve is electrically connected with described control unit, when described control unit receives engine misses signal, described control unit controls the air intake control valve closure, after engine crankshaft stops operating completely, described control unit controls the air intake control valve and opens.The engine shutdown control system and control method can reduce going successively to for air when engine is shut down, and prevent the generation of air flow noise and engine is prevented to burn away work.
Description
Technical field
The present invention relates to engines to shut down control field, more particularly to a kind of engine shutdown control system, using this
Control method that control system controls the shutdown of engine and with the automobile of the control system.
Background technique
The national policy of requirement with to(for) clean energy resource is higher and higher, and new energy mixes power for the thermal effect of engine
Higher requirements are also raised for rate；And three cylinder machines (or even two cylinder, single cylinder engine) are a very important solution directions among these.
Three cylinder machines are small in size, light-weight, structure is simple, cheap.But the bigger problem of three cylinder machines is its operation and starts
The ride comfort (ride comfort) of shutdown status is poor, is not able to satisfy consumer for driving the requirement experienced.
When engine is shut down, trade edition air throttle stops working, but still in the open state, and engine crankshaft is in inertia
Under the action of continue to rotate.The opening that air continues through air throttle enters air flue, at this point, air flows in air flue to be produced
Raw noise, the performance of the NVH of engine are undesirable.
Summary of the invention
In view of this, the present invention provides a kind of engine shutdown control system, control method and automobile, which is shut down
Control system and control method can reduce going successively to for air when engine is shut down, and prevent the generation of air flow noise
With prevent engine from burning away work.
The present invention provides a kind of engine shutdown control system, including control unit and air intake control valve, the air inlets
Control valve is set between the engine air throttle and the air cleaner, controls the air throttle and the air-filtering
Connection between device, the air intake control valve are electrically connected with described control unit, when described control unit receives engine
When misfire signals, described control unit controls the air intake control valve closure, described after engine crankshaft stops operating completely
Control unit controls the air intake control valve and opens.
Further, the engine shutdown control system further includes BCM, described control unit ECU, as the BCM
When receiving engine misses signal, the BCM is sent to the ECU through the signal, and the ECU controls the air intake control valve
Closure.
Further, the engine shutdown control system further includes crankshaft position sensor, and described control unit passes through
The revolving speed of the crankshaft position sensor detection engine crankshaft, when engine crankshaft stops operating, described control unit control
The air intake control valve is made to reopen.
Further, the first preset time is prestored in described control unit, described control unit is being connected to described start
When machine misfire signals, described control unit controls the air intake control valve after first preset time and reopens, described
First preset time is greater than or equal to engine from the time to stop operating completely to the engine crankshaft of stopping working.
Further, the air intake control valve is set to air inlet pipeline close to the end of described air cleaner one end, or
The air inlet pipeline is set to close to the end of described air throttle one end, or is set in the air inlet pipeline.
The present invention also provides a kind of engine halt control method, this method shuts down control system based on above-mentioned engine
System, and include the following steps:
S1: engine misses signal is received；
S2: control air intake control valve is closed；
S3: it after engine crankshaft stops operating completely, controls the air intake control valve and reopens.
Further, after the engine crankshaft stops completely, the step of air intake control valve reopens is controlled
In, this method further includes following steps: the signal of crankshaft sensor is detected, when engine crankshaft stops operating completely, and control
The air intake control valve is opened.
Further, after the engine crankshaft stops completely, the step of air intake control valve reopens is controlled
In, this method further includes following steps: after the first predetermined time for being connected to the engine misses signal, controlling the air inlet
Control valve reopens, and first predetermined time is greater than or equal to engine and stops completely from stopping working to the engine crankshaft
The time of rotation.
The present invention also provides a kind of automobile, which includes engine shutdown control system provided by the invention.
In conclusion in the present invention, by providing an additional air intake control valve except air throttle, being sent out when receiving
After motivation misfire signals, control unit controls air intake control valve closure, and air intake control valve prevents outside air from entering in engine,
This can eliminate engine first when shutting down, and not exclusively because of air throttle closure, gas still enters engine, and causes to starting
The impact of machine；Secondly, the vacuum degree of inlet manifold can also be increased, compression pressure is reduced, the torsional oscillation of engine is reduced；Finally,
Pumping loss can also be increased, shorten downtime, achieve the purpose that improve flame-out noise；Further, work as engine crankshaft
After stopping operating completely, control unit controls air intake control valve and opens, and air inlet pipeline restores connected state, to prevent to rear supervention
The starting of motivation impacts.Finally, due to which in the present invention, in engine stopping process, air throttle can not have to complete
Closure, turn, this reduces impacts when air throttle closure to engine, create a further reduction the abnormal sound of engine.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of engine shutdown control system provided in an embodiment of the present invention.
Fig. 2 is that the prior art controls the shutdown of engine with the engine shutdown control system provided using Fig. 1
When, the comparison diagram of noise improvement.
Fig. 3 is the logic control chart of engine halt control method provided in an embodiment of the present invention.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, detailed description are as follows.
The present invention provides a kind of engine shutdown control system, control method and automobile, the engine shutdown control system
And control method can reduce going successively to for air when engine is shut down, and prevent the generation of air flow noise and prevent hair
Motivation burns away work.
Fig. 1 is the structural schematic diagram of engine shutdown control system provided in an embodiment of the present invention, as shown in Figure 1, this hair
The engine shutdown control system of bright offer includes control unit 10 and air intake control valve 20, which is set to hair
Between 41 air throttle 31 of motivation and air cleaner 32, the connection of air cleaner 32 and air throttle 31 is controlled, and single with control
Member 10 is electrically connected, and after control unit 10 receives 41 misfire signals of engine, control air intake control valve 20 is closed, block into
The connection of air pipe 33 prevents air from entering in engine 41, and after engine crankshaft stops operating completely, control unit 10 is controlled
Air intake control valve 20 processed is opened, and the connection in air inlet pipeline 33 is restored.
In the present embodiment, an additional air intake control valve 20 is provided except air throttle 31, when receiving engine 41
After misfire signals, control unit 10 controls air intake control valve 20 and is closed, and air intake control valve 20 prevents outside air from entering engine
In 41, when this can eliminate the shutdown of engine 41 first, because air throttle 31 is closed not exclusively, gas still enters engine 41,
And make the impact of coupled engines 41；Secondly, the vacuum degree of inlet manifold can also be increased, compression pressure is reduced, reduction is started
The torsional oscillation of machine 41；Finally, pumping loss can also be increased, shorten downtime, achievees the purpose that improve flame-out noise；Further
Ground, after engine crankshaft stops operating completely, control unit 10 controls air intake control valve 20 and opens, and air inlet pipeline 33 restores to connect
Logical state, to prevent the starting to subsequent engine 41 from impacting.Finally, due in the present invention, be shut down in engine 41
In the process, air throttle 31 can not have to be closed completely, and turn, this reduces the impacts when closure of air throttle 31 to engine 41, into one
Reduce to step the abnormal sound of engine 41.
Further, in the present embodiment, control unit 10 can (engine control module, starts for ECM
41 control unit 10 of machine), when BCM (body control module, vehicle body control unit 10) receives the flame-out letter of engine 41
Number when, which is passed to ECM by BCM, and ECM controls air intake control valve 20 and is closed, to prevent outside air from entering engine 41
It is interior.
Further, in the present embodiment, air intake control valve 20 can be set in air inlet pipeline 33 close to air cleaner
The end of 32 one end, air inlet pipeline 33 close to 31 one end of air throttle end or be set in air inlet pipeline 33, as long as can make
Obtain air intake control valve 20 prevents outside air from entering in engine 41 when closed.Air intake control valve 20 can be, but not limited to
For solenoid valve or motor-driven valve.
Further, control unit 10 can detect the revolving speed of engine crankshaft by crankshaft position sensor, when starting
When machine crankshaft stops operating, control unit 10 controls air intake control valve 20 and reopens.
In another embodiment of the invention, the first preset time is prestored in control unit 10, control unit 10 can also
After 3S, to automatically control air intake control valve 20 and open after the first preset time being connected to after engine misses signal.It can be with
Understand ground, first preset time depending on the performance of engine 41, need be greater than or equal to from engine 41 stop working to
The time that engine crankshaft stops operating.
Fig. 2 is that the prior art controls the shutdown of engine 41 with the engine shutdown control system provided using Fig. 1
When processed, the comparison diagram of noise improvement.Fig. 2 shows the engine 41 of the prior art and there is engine provided by the invention to shut down
The engine 41 of control system, the noise comparison diagram before the inverse of 41 stopping process of engine in 3 seconds.Abscissa indicates in figure
Time, ordinate indicate A point in amplitude (namely noise of engine 41) figure of engine 41 represent engine 41 it is flame-out when
It carves, at the time of B point represents engine crankshaft and stops operating.As seen from Figure 2, engine provided by the invention is provided with to shut down
The engine 41 of control system compared with the prior art, obviously weakens in shutdown phase amplitude, meanwhile, downtime also has centainly
The reduction of degree.
The present invention also provides a kind of 41 halt control method of engine, which is shut down based on above-mentioned engine
Control system, and comprise the following steps:
S1: 41 misfire signals of engine are received；
S2: control air intake control valve 20 is closed；
S3: after engine crankshaft stops operating completely, control air intake control valve 20 is reopened.
Further, it after engine crankshaft stops operating completely, controls in the step of air intake control valve 20 is opened, also wraps
It includes following steps: detecting the signal of crankshaft position sensor, when crankshaft stops operating completely, control air intake control valve 20 is opened
It opens.
In another embodiment, which includes after the first predetermined time for receiving 41 misfire signals of engine, controlling
Air intake control valve 20 processed is opened, which is greater than or equal to engine 41 and stops completely from stopping working to engine crankshaft
The time of rotation.
In conclusion in the present invention, by providing an additional air intake control valve 20 except air throttle 31, working as reception
To after 41 misfire signals of engine, control unit 10 controls air intake control valve 20 and is closed, and air intake control valve 20 prevents outside air
Into in engine 41, when this can eliminate the shutdown of engine 41 first, because air throttle 31 is closed not exclusively, gas still enters
Engine 41, and make the impact of coupled engines 41；Secondly, the vacuum degree of inlet manifold can also be increased, compression pressure is reduced,
Reduce the torsional oscillation of engine 41；Finally, pumping loss can also be increased, shorten downtime, reaches the mesh for improving flame-out noise
's；Further, after engine crankshaft stops operating completely, control unit 10 controls air intake control valve 20 and opens, air inlet pipe
Connected state is restored on road 33, to prevent the starting to subsequent engine 41 from impacting.Finally, due in the present invention, send out
In 41 stopping process of motivation, air throttle 31 can not have to be closed completely, to engine 41 when being closed turn, this reduces air throttle 31
Impact, create a further reduction the abnormal sound of engine 41.
The present invention also provides a kind of automobile, which includes above-mentioned engine shutdown control system, about the automobile
Other technical characteristics, refer to the prior art, details are not described herein.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (9)
1. a kind of engine shutdown control system, it is characterised in that: including control unit and air intake control valve, the air inlet control
Valve is set between the engine air throttle and air cleaner, is controlled between the air throttle and the air cleaner
Connection, the air intake control valve is electrically connected with described control unit, when described control unit receives engine misses signal
When, described control unit controls the air intake control valve closure, after engine crankshaft stops operating completely, described control unit
The air intake control valve is controlled to open.
2. engine shutdown control system according to claim 1, it is characterised in that: the engine shutdown control system
It further include BCM, described control unit ECU, when the BCM receives engine misses signal, the BCM is sent out through the signal
It send to the ECU, the ECU and controls the air intake control valve closure.
3. engine shutdown control system according to claim 1, it is characterised in that: the engine shutdown control system
It further include crankshaft position sensor, described control unit detects the revolving speed of engine crankshaft by the crankshaft position sensor,
When engine crankshaft stops operating, described control unit controls the air intake control valve and reopens.
4. engine shutdown control system according to claim 1, it is characterised in that: prestore in described control unit
One preset time, for described control unit when being connected to the engine misses signal, described control unit is default described first
It controls the air intake control valve after time to reopen, first preset time is greater than or equal to engine from stopping working to described
The time that engine crankshaft stops operating completely.
5. engine shutdown control system according to claim 1, it is characterised in that: the air intake control valve be set into
Air pipe is close to the end of described air cleaner one end, or is set to the air inlet pipeline close to the end of described air throttle one end
Portion, or be set in the air inlet pipeline.
6. a kind of engine halt control method, it is characterised in that: the engine halt control method be based on claim 1 to
Engine shutdown control system described in any one of 5, and include the following steps:
S1: engine misses signal is received；
S2: control air intake control valve is closed；
S3: it after engine crankshaft stops operating completely, controls the air intake control valve and reopens.
7. engine halt control method according to claim 6, it is characterised in that: stop completely in the engine crankshaft
After only, controls in the step of air intake control valve reopens, this method further includes following steps: detecting crankshaft sensor
Signal controls the air intake control valve and opens when engine crankshaft stops operating completely.
8. engine halt control method according to claim 6, it is characterised in that: stop completely in the engine crankshaft
It after only, controls in the step of air intake control valve reopens, this method further includes following steps: being connected to the engine
It after first predetermined time of misfire signals, controls the air intake control valve and reopens, first predetermined time is greater than or waits
In engine from the time to stop operating completely to the engine crankshaft of stopping working.
9. a kind of automobile, it is characterised in that: the automobile includes that engine described in any one of claim 1 to 5 is shut down
Control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811116614.0A CN109184922B (en) | 2018-09-25 | 2018-09-25 | Engine stop control system, control method and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811116614.0A CN109184922B (en) | 2018-09-25 | 2018-09-25 | Engine stop control system, control method and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109184922A true CN109184922A (en) | 2019-01-11 |
| CN109184922B CN109184922B (en) | 2020-11-10 |
Family
ID=64910054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811116614.0A Active CN109184922B (en) | 2018-09-25 | 2018-09-25 | Engine stop control system, control method and automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN109184922B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425305A (en) * | 2020-04-01 | 2020-07-17 | 广西玉柴机器股份有限公司 | Air-break valve with high safety |
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|---|---|---|---|---|
| JP2006258078A (en) * | 2005-03-18 | 2006-09-28 | Toyota Motor Corp | Control device for engine |
| JP2010014072A (en) * | 2008-07-04 | 2010-01-21 | Toyota Motor Corp | Engine stop control device for hybrid system |
| CN101970835A (en) * | 2008-02-19 | 2011-02-09 | 五十铃自动车株式会社 | Stop control device for engine |
| CN102200078A (en) * | 2010-03-25 | 2011-09-28 | 株式会社电装 | Air intake apparatus for vehicle |
| JP2017008780A (en) * | 2015-06-19 | 2017-01-12 | 富士重工業株式会社 | Internal combustion engine |
| CN107237698A (en) * | 2016-03-29 | 2017-10-10 | 牛刚学 | The method and device of internal combustion engine cylinder deactivation oil-break |
-
2018
- 2018-09-25 CN CN201811116614.0A patent/CN109184922B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006258078A (en) * | 2005-03-18 | 2006-09-28 | Toyota Motor Corp | Control device for engine |
| CN101970835A (en) * | 2008-02-19 | 2011-02-09 | 五十铃自动车株式会社 | Stop control device for engine |
| JP2010014072A (en) * | 2008-07-04 | 2010-01-21 | Toyota Motor Corp | Engine stop control device for hybrid system |
| CN102200078A (en) * | 2010-03-25 | 2011-09-28 | 株式会社电装 | Air intake apparatus for vehicle |
| JP2017008780A (en) * | 2015-06-19 | 2017-01-12 | 富士重工業株式会社 | Internal combustion engine |
| CN107237698A (en) * | 2016-03-29 | 2017-10-10 | 牛刚学 | The method and device of internal combustion engine cylinder deactivation oil-break |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425305A (en) * | 2020-04-01 | 2020-07-17 | 广西玉柴机器股份有限公司 | Air-break valve with high safety |
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| Publication number | Publication date |
|---|---|
| CN109184922B (en) | 2020-11-10 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190326 Address after: 550014 No. 123 Yunhuan East Road, Baiyun District, Guiyang City, Guizhou Province Applicant after: Guizhou Geely Engine Co., Ltd. Applicant after: Zhejiang Geely Holding Group Co., Ltd. Address before: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Applicant before: Zhejiang Geely Holding Group Co., Ltd. Applicant before: Guiyang Jili Engine Co., Ltd. |
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