CN105332760B - Vehicle motor deceleration decompressor - Google Patents
Vehicle motor deceleration decompressor Download PDFInfo
- Publication number
- CN105332760B CN105332760B CN201510830429.8A CN201510830429A CN105332760B CN 105332760 B CN105332760 B CN 105332760B CN 201510830429 A CN201510830429 A CN 201510830429A CN 105332760 B CN105332760 B CN 105332760B
- Authority
- CN
- China
- Prior art keywords
- oil circuit
- vehicle
- engine
- pressure
- push rod
- 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.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 230000033001 locomotion Effects 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 90
- 239000000446 fuel Substances 0.000 claims description 15
- 239000010720 hydraulic oil Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 2
- 239000010721 machine oil Substances 0.000 claims 1
- 230000006837 decompression Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
Classifications
-
- 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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
Vehicle motor deceleration decompressor, the decompressor include driving mechanism and push rod, and one end of the push rod is fixed in the driving mechanism, and the other end is contacted in the upper surface of the rocking arm contacted with engine valve when the push rod stretches out；The stretching motion of push rod described in the driving mechanisms control.The decompressor of the present invention causes vehicle when engine during advance is by vehicle towing astern, to reduce the running resistance of engine cylinder piston, slows down the trend of engine speed reduction so that sliding distance of the vehicle in towing astern engine rotation extends.Decompression method when vehicle motor operates in the present invention utilizes the electronic control unit in vehicle, the operating status of vehicle is judged by the information of each sensor, so as to perform the decompression action to vehicle motor, so that coasting distance of the vehicle in towing astern engine rotation in the state of setting extends, has practical value.
Description
Technical field
The present invention relates to vehicle motor deceleration decompressors.
Background technology
When vehicle is accelerated to certain speed when driving, in-engine rotating speed must be in idling fortune higher than engine
Rotating speed when turning, if driver unclamps gas pedal at this time, in-engine fuel feed system can be in idling supply state,
That is engine fuel supply system or accelerator is not artificially controlled.The rotating speed of engine can be started by vehicle towing astern at this time
The rotating speed of machine is as the speed of vehicle declines and declines, and the end thereof contacts of engine rocker engine valve, gas during this
Door is normally on and normally off with the rotation of engine rocker, and when valve-closing, the piston running resistance in cylinder becomes larger so that starts
Machine rotating speed reduces comparatively fast, and the coasting distance for causing vehicle is short.
Invention content
The shortcomings that in order to overcome the prior art with insufficient, the invention discloses vehicle motor deceleration decompressor, including
Driving mechanism and push rod, one end of the push rod are fixed in the driving mechanism, and the other end contacts when the push rod stretches out
The upper surface of the rocking arm contacted with engine valve；The stretching motion of push rod described in the driving mechanisms control.
Further, the driving mechanism is hydraulic mechanism.
Further, the hydraulic mechanism includes a hydraulic cylinder, and the fixing end of the push rod is arranged in the hydraulic cylinder
Piston on；The both ends of the piston connect the first oil circuit and the second oil circuit respectively in the hydraulic cylinder；The first oil circuit packet
First pressure oil circuit and the first pressure release oil circuit are included, second oil circuit includes second pressure oil circuit and the second pressure release oil circuit；It is described
First pressure oil circuit and second pressure oil circuit are connect respectively with a hydraulic oil pump；The first pressure release oil circuit and the second pressure release oil circuit
It is connect respectively with oil return manifold；The hydraulic oil pump can be by the hydraulic oil pressurized delivered in the oil return manifold.
Further, the first pressure oil circuit and second pressure oil circuit connect respectively through a distributing valve and the hydraulic oil pump
It connects；The first pressure release oil circuit and the second pressure release oil circuit are connect respectively through the distributing valve with the oil return manifold；Described point
It can control the on off operating mode of the first pressure oil circuit, second pressure oil circuit, the first pressure release oil circuit and the second pressure release oil circuit with valve.
Further, the hydraulic oil pump is lubricating oil pump, and the oil return manifold is connect with sump.
Further, further include electronic control unit, the electronic control unit respectively with engine speed sensor and
The driving mechanism connection；The electronic control unit also with the fuel supply system state sensor or engine of vehicle motor
Accelerator state sensor connects；The electronic control unit controls the driving mechanism work.
A kind of decompression method of vehicle motor, includes the following steps：
(1) electronic control unit acquisition engine fuel supply system's status information of vehicle or the shape of engine accelerator
State information and the real-time rotary speed information of engine；
(2) when electronic control unit is according to collected information, judge vehicle engine fuel supply system or vehicle hair
Motivation accelerator is in the state that is not artificially controlled, and when engine speed is higher than setting value, electronic control unit
The valve for controlling engine is normally opened；
(3) when the accelerator of the fuel supply system of vehicle motor or vehicle motor is in the state that artificially controls,
Or engine speed, when being less than setting value, electronic control unit, which is detached from, maintains a normally open valve the control of state.
The decompressor of the present invention to reduce cylinder inner carrier during advance of the vehicle in towing astern engine rotation
Running resistance, slow down engine speed reduction trend so that sliding distance of the vehicle in towing astern engine coasts prolongs
It is long.The decompression method of vehicle motor passes through the information of each sensor using the electronic control unit in vehicle in the present invention
Judge the operating status of vehicle, the decompression to vehicle motor is performed in vehicle towing astern engine rotation and is acted so that vehicle
Coasting distance in towing astern engine rotation extends, and has practical value.
In order to better understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Description of the drawings
Fig. 1 is the schematic diagram of deceleration decompressor in the present invention.
Fig. 2 is schematic diagram when deceleration decompressor is controlling engine valve normally opened in the present invention.
Fig. 3 be in the present invention deceleration decompressor remove controls engine valve it is normally opened when schematic diagram
Specific embodiment
Please refer to Fig.1-3, vehicle motor deceleration decompressor, including driving mechanism 1 and push rod 2, the one of the push rod 2
End is fixed in the driving mechanism 1, and the other end is contacted in the rocking arm 31 contacted with engine valve when the push rod 2 stretches out
Upper surface；The driving mechanism 1 controls the stretching motion of the push rod 2.
The driving mechanism 1 is hydraulic mechanism.The hydraulic mechanism includes a hydraulic cylinder 11, the fixing end of the push rod 2
It is arranged on the piston 12 in the hydraulic cylinder 11；The both ends of the piston 12 connect the first oil circuit respectively in the hydraulic cylinder 11
With the second oil circuit；First oil circuit includes 101 and first pressure release oil circuit 102 of first pressure oil circuit, and second oil circuit includes
103 and second pressure release oil circuit 104 of second pressure oil circuit；The first pressure oil circuit 101 and second pressure oil circuit 103 are respectively with one
Hydraulic oil pump 16 connects；The first pressure release oil circuit 102 and the second pressure release oil circuit 104 are connect respectively with oil return manifold 15；It is described
Hydraulic oil pump 16 can be by the hydraulic oil pressurized delivered in the oil return manifold 15.
The first pressure oil circuit 101 and second pressure oil circuit 103 are respectively through a distributing valve 17 and the hydraulic oil pump 16
Connection；The first pressure release oil circuit 102 and the second pressure release oil circuit 104 are respectively through the distributing valve 17 and the oil return manifold 15
Connection；The distributing valve 17 can control the first pressure oil circuit 101, second pressure oil circuit 103,102 and of the first pressure release oil circuit
The on off operating mode of second pressure release oil circuit 104.
The hydraulic oil pump 16 is lubricating oil pump, and the oil return manifold 15 is connect with sump 18.
The vehicle motor deceleration decompressor further includes electronic control unit, the electronic control unit respectively with
Engine speed sensor and the driving mechanism 1 connect；The electronic control unit also with engine fuel supply system state
Sensor or the connection of engine accelerator state sensor；The electronic control unit controls the driving mechanism 1 to work.
The swing of rocking arm 31 can be such that valve 3 switches between Push And Release, when electronic control unit detects that automobile is in
During deceleration regime, and during the opening of valve 3, electronic control unit stretches out push rod 2 by driving mechanism 1, and one end of push rod 2 contacts
In the upper surface of one end that rocking arm 31 is contacted with valve 3 so that rocking arm 31 can not back be swung, and then valve 3 is controlled to be in normal
Open state.When valve 3 maintains a normally open state, resistance of the piston 12 in working in reciprocating mode in engine cylinder can subtract significantly
It is small, so as to reduce the running resistance of engine crankshaft, slow down the downward trend of its rotating speed, start so as to extend vehicle in towing astern
Coasting distance when machine rotates.
In the present embodiment, electronic control unit controls the flexible dynamic of push rod 2 by sending out signal to driving mechanism 1
Make, and in other embodiments, the expanding-contracting action of push rod 2 also can be by by vehicle driver's manual manipulation, in push rod 2 and manipulating
Corresponding transmission mechanism is added between platform to can be realized.
In the present embodiment, the driving mechanism 1 that driving push rod 2 moves is hydraulic mechanism.Space in hydraulic cylinder 11 is by piston
12 are split up into the first cavity 13 and the second cavity 14.Described 2 one end of push rod is fixed on piston 12, and rest part passes through the liquid
First cavity 13 of cylinder pressure 11, the other end are contacted on the rocking arm 31.
17 spool of distributing valve of hydraulic mechanism is controlled by motor 19, and reaching each oil circuit of control by the position of mobile spool connects
The purpose that on-off is opened.When electronic control unit detects that engine fuel supply system or engine accelerator are in non-artificial
The normal operating conditions of control, and engine speed be higher than setting value when, electronic control unit i.e. to motor 19 send signal,
Motor 19 controls the spool movement of distributing valve 17, closes first pressure oil circuit 101, the first pressure release oil circuit 102 connects, the second pressure
Power oil circuit 103 connects, the second pressure release oil circuit 104 is closed, and the part fluid in sump 18 is after lubricating oil pump extracts pressurization, from the
Two pressure oil circuits 103 are delivered to the second cavity 14；And the oil in the first cavity 13 of hydraulic cylinder 11 is flowed through the first pressure release oil circuit 102
To oil return manifold 15, sump 18 is then passed to；Piston 12 is made to be moved to 13 direction of the first cavity, so as to which push rod 2 be driven to stretch out,
So as to which engine valve 3 be controlled to be in normally open.
When electronic control unit detects that engine fuel supply system or engine accelerator are in artificial state of a control,
Or engine speed, when being less than setting value, electronic control unit sends out signal to motor 19, and motor 19 controls the valve of distributing valve 17
Core moves, and connects first pressure oil circuit 101, the first pressure release oil circuit 102 is closed, second pressure oil circuit 103 is closed, the second pressure release
Oil circuit 104 connects, and the part fluid in sump 18 is delivered to the after lubricating oil pump extracts pressurization, from first pressure oil circuit 101
One cavity 13；And the oil in the second cavity 14 of hydraulic cylinder 11 flows to oil return manifold 15 through the second pressure release oil circuit 104, then passes to
Sump 18；Piston 12 is made to be moved to 14 direction of the second cavity, so as to which push rod 2 be driven to withdraw, releases the normally opened of engine valve 3
State.
A kind of decompression method of vehicle motor, includes the following steps：
(1) electronic control unit acquisition engine fuel supply system's status information of vehicle or the shape of engine accelerator
State information and the real-time rotary speed information of engine；
(2) when electronic control unit is according to collected information, judge that engine fuel supply system or engine accelerate
Device is in the state that is not artificially controlled, and when engine speed is higher than setting value, and electronic control unit control is started
The valve of machine is normally opened；
(3) when the accelerator of the fuel supply system of vehicle motor or vehicle motor is in the state that artificially controls,
Or engine speed be less than setting value when, electronic control unit control valve be detached from normally open.
Electronic control unit is passed from the fuel supply system state sensor or engine accelerator state of vehicle motor
Relevant information is obtained in the sensors such as sensor and engine speed sensor, vehicle-state and engine condition is judged, works as vehicle
When driving to certain speed, driver unclamps throttle, and engine fuel supply system or engine accelerator are in not by people
State in order to control, while engine is by vehicle towing astern, when engine speed is higher than setting value, electronic control unit control driving
The valve of engine cylinder is maintained normally open by mechanism, so as to reduce the running resistance of engine inner carrier, extends vehicle
Coasting distance when engine speed is by speed towing astern.
The decompressor that the present invention utilizes to reduce in cylinder during advance of the vehicle in towing astern engine rotation
The running resistance of piston, slow down engine speed reduction trend so that slip of the vehicle in towing astern engine coasts away from
From extension.The decompression method of vehicle motor passes through each sensor using the electronic control unit in vehicle in the present invention
Information judges the operating status of vehicle, and the decompression to vehicle motor is performed in vehicle towing astern engine rotation and is acted so that
Coasting distance of the vehicle in towing astern engine rotation extends, and has practical value.
The invention is not limited in the above embodiment, if the various changes or deformation to the present invention do not depart from the present invention
Spirit and scope, if these changes and deformation belong within the scope of the claim and equivalent technologies of the present invention, then this hair
It is bright to be also intended to comprising these changes and deformation.
Claims (3)
1. vehicle motor deceleration decompressor, it is characterised in that：Including driving mechanism and push rod, one end of the push rod is fixed
In the driving mechanism, the other end is contacted in the upper surface of the rocking arm contacted with engine valve when the push rod stretches out；Institute
State the stretching motion of push rod described in driving mechanisms control；The driving mechanism is hydraulic mechanism；The hydraulic mechanism includes a liquid
Cylinder pressure, the fixing end of the push rod are arranged on the piston in the hydraulic cylinder；The both ends of the piston point in the hydraulic cylinder
The first oil circuit and the second oil circuit are not connected；First oil circuit include first pressure oil circuit and the first pressure release oil circuit, described second
Oil circuit includes second pressure oil circuit and the second pressure release oil circuit；The first pressure oil circuit and second pressure oil circuit respectively with a hydraulic pressure
Oil pump connects；The first pressure release oil circuit and the second pressure release oil circuit are connect respectively with oil return manifold；The hydraulic oil pump can be by institute
State the hydraulic oil pressurized delivered in oil return manifold；The first pressure oil circuit and second pressure oil circuit are respectively through a distributing valve and institute
State hydraulic oil pump connection；The first pressure release oil circuit and the second pressure release oil circuit are respectively through the distributing valve and the oil return manifold
Connection；The distributing valve can control the first pressure oil circuit, second pressure oil circuit, the first pressure release oil circuit and the second pressure release oil circuit
On off operating mode.
2. vehicle motor deceleration decompressor according to claim 1, it is characterised in that：The hydraulic oil pump is machine oil
Pump, the oil return manifold are connect with sump.
3. vehicle motor deceleration decompressor according to claim 1, it is characterised in that：It is single to further include electronic control
Member, the electronic control unit are connect respectively with engine speed sensor and the driving mechanism；The electronic control unit
Also it is connect with engine fuel supply system state sensor or engine accelerator state sensor；The electronic control unit
The driving mechanism is controlled to work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510830429.8A CN105332760B (en) | 2015-11-25 | 2015-11-25 | Vehicle motor deceleration decompressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510830429.8A CN105332760B (en) | 2015-11-25 | 2015-11-25 | Vehicle motor deceleration decompressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105332760A CN105332760A (en) | 2016-02-17 |
| CN105332760B true CN105332760B (en) | 2018-06-12 |
Family
ID=55283491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510830429.8A Expired - Fee Related CN105332760B (en) | 2015-11-25 | 2015-11-25 | Vehicle motor deceleration decompressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105332760B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798916B (en) * | 2017-04-28 | 2020-10-30 | 长城汽车股份有限公司 | Engine control method and system and vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182885A (en) * | 2007-11-20 | 2008-05-21 | 孙立伟 | Internal-combustion engines vehicle power intelligence control system and control method control method thereof |
| CN104791123A (en) * | 2015-04-20 | 2015-07-22 | 胡正涛 | Energy-saving starting intelligent control system of multi-cylinder diesel engine |
| CN204783160U (en) * | 2015-07-10 | 2015-11-18 | 浙江师范大学 | Continuously adjustable type engine auxiliary brake device |
| CN205225358U (en) * | 2015-11-25 | 2016-05-11 | 阮派烈 | Engine speed reduction pressure relief device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5708041B2 (en) * | 2011-03-03 | 2015-04-30 | 日産自動車株式会社 | Control device for internal combustion engine |
-
2015
- 2015-11-25 CN CN201510830429.8A patent/CN105332760B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182885A (en) * | 2007-11-20 | 2008-05-21 | 孙立伟 | Internal-combustion engines vehicle power intelligence control system and control method control method thereof |
| CN104791123A (en) * | 2015-04-20 | 2015-07-22 | 胡正涛 | Energy-saving starting intelligent control system of multi-cylinder diesel engine |
| CN204783160U (en) * | 2015-07-10 | 2015-11-18 | 浙江师范大学 | Continuously adjustable type engine auxiliary brake device |
| CN205225358U (en) * | 2015-11-25 | 2016-05-11 | 阮派烈 | Engine speed reduction pressure relief device |
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| Publication number | Publication date |
|---|---|
| CN105332760A (en) | 2016-02-17 |
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Granted publication date: 20180612 |