CN203769933U - Electric controlling pneumatic system used for engine supercharging adjustment - Google Patents
Electric controlling pneumatic system used for engine supercharging adjustment Download PDFInfo
- Publication number
- CN203769933U CN203769933U CN201420098284.8U CN201420098284U CN203769933U CN 203769933 U CN203769933 U CN 203769933U CN 201420098284 U CN201420098284 U CN 201420098284U CN 203769933 U CN203769933 U CN 203769933U
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- Prior art keywords
- engine
- air inlet
- air
- valve
- pressure
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- 239000002912 waste gas Substances 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000013022 venting Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 18
- 238000002485 combustion reaction Methods 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010789 controlled waste Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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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- Supercharger (AREA)
Abstract
The utility model discloses an electric controlling pneumatic system used for engine supercharging adjustment. The technical scheme is as follows: the air inlet pressure of an engine is controlled by the electric controlling pneumatic system through the pressure change in a cavity, the cavity is communicated with an air inlet, an air outlet and a controlling opening respectively, the air inlet and the air outlet are equipped with an air inlet electromagnetic valve and an air outlet electromagnetic valve respectively, the two electromagnetic valves are connected with an engine ECU through an electronic circuit, the air inlet and the air outlet are communicated with the air inlet pipe of the engine and atmosphere respectively, and the controlling opening controls the exhausting air venting air valve rod of a turbine motor through a diaphragm. According to the utility model, the PID algorithm of the engine ECU is adopted to control two digits two-way normally closed high-speed electromagnetic valves through the pulse width adjustment technology, so that the purpose of flexibly controlling exhausting air venting air valve rod can be reached, and the air inlet pressure of the engine adjusted flexibly in real time can be realized.
Description
Technical field
The utility model relates to a kind of ecp system regulating for engine booster, belongs to internal-combustion engine field of electric control.
Background technique
Pressurized machine, by improving the density of the induced air of internal-combustion engine, can improve the power per liter of internal-combustion engine.Mixed combustion state due to internal-combustion engine improves simultaneously, and the combustion efficiency of internal-combustion engine is improved, and reaches the effect of oil-saving discharging-reducing.Pressurized machine technology is an important technological progress of Modern Engine.
Pressurized machine mainly comprises three kinds of patterns: exhaust-gas turbocharger, mechanical turbine pressurized machine and electric auxiliary turbine pressurizer.Due to self-centered characteristic, application is now exhaust-gas turbocharger the most generally.The internal-combustion engine that matched with pressurization device uses comprises diesel engine and petrol engine.
Exhaust-gas turbocharger is mainly comprised of gas compressor and turbo machine.High Temperature High Pressure exhaust energy increase self rotating speed that turbo machine is discharged by utilizing enmgine exhaust, and then drive coaxial gas compressor, finally make the more fresh airs of gas compressor compression, increase air input of engine by air, reach the object that increases engine power, reduces specific fuel consumption and discharge.
But exhaust-gas turbocharger under as the specific operation of maximum torque point or maximum power point, because exhaust energy is too high, will make the rotating speed of gas compressor and turbo machine exceed safe speed of rotation; Or the too high engine cylinder combustion pressure that causes of suction pressure is excessive, affect the reliability of pressurized machine and motor.Usually, by adopting the control turbo machine by-passing part waste gas of waste gas bleed valve, thereby reach the object that reduces gas compressor and turbine speeds, control suction pressure.
Conventionally the waste gas bleed valve adopting is arranged on turbo machine, waste gas bleed valve was connected with the suction tude after gas compressor by connecting tube, when after gas compressor, suction pressure is too high, pressurized gas in connecting tube promote waste gas bleed valve valve rod, make part exhaust gas bypass, reduce the rotating speed of gas compressor and turbo machine.But this exhaust gas bypass mode is controlled by suction pressure only, opens valve characteristic single, cannot meet the demand for control of Modern Engine to suction pressure free adjusting.
Summary of the invention
For above prior art, the utility model provides a kind of ecp system regulating for engine booster, adopt PWM (pulse-width adjustment) technology, solve current pressurized machine and cannot pass through the problem of waste gas bleed valve free adjusting suction pressure, realize the function of motor to suction pressure free adjusting.
A kind of ecp system regulating for engine booster of the utility model, described ecp system changes the suction pressure of control engine by the pressure in cavity volume, cavity volume is communicated with suction port, relief opening and control mouth respectively, on suction port and relief opening, be equipped with respectively air inlet electromagnetic valve and exhaust solenoid valve, two solenoid valves are connected with Engine ECU by electronic circuit, suction port and relief opening are communicated with engine air inlet tube and atmosphere respectively, control mouth and by diaphragm, control the waste gas bleed valve valve rod of turbo machine.
Compared with prior art, the beneficial effects of the utility model are: ecp system adopts the pid algorithm of Engine ECU to control two normally closed high-speed electromagnetic valves of 2/2-way by pulse-width adjustment technology, thereby reach the object of flexible control waste gas bleed valve valve rod, can realize real-time, free adjusting to engine charge pressure.
To sum up, the utility model provides a kind of ecp system regulating for engine booster, this system adopts the pid algorithm of Engine ECU to control two normally closed high-speed electromagnetic valves of 2/2-way by pulse-width adjustment technology, can realize to motor the highest suction pressure in real time, free adjusting.
Below with reference to the drawings and specific embodiments, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is solenoid valve pneumatic system structural representation.
Fig. 2 is solenoid valve pneumatic system fundamental diagram.
In figure:
1---suction port 2---air inlet electromagnetic valve 3---cavity volume
4---exhaust solenoid valve 5---relief opening 6---controls mouthful
7---diaphragm 8---waste gas bleed valve valve rod
Embodiment
Below in conjunction with accompanying drawing, the utility model is done into-step explanation:
As shown in Figure 1, present embodiment relates to a kind of ecp system regulating for engine booster, described ecp system changes the suction pressure of control engine by the pressure in cavity volume 3, cavity volume is communicated with suction port 1, relief opening 5 and control mouth 6 respectively, on suction port 1 and relief opening 5, be equipped with respectively air inlet electromagnetic valve 2 and exhaust solenoid valve 4, two solenoid valves are connected with Engine ECU by electronic circuit, suction port 1 and relief opening 5 are communicated with engine air inlet tube and atmosphere respectively, control mouth 6 and by diaphragm 7, control the waste gas bleed valve valve rod 8 of turbo machines.
The workflow of present embodiment is: Engine ECU gathers after engine compressor after suction pressure by air inlet pressure sensor, according to predefined target suction pressure, judge whether the actual suction pressure under this operating mode meets or exceeds target suction pressure, thereby make Engine ECU carry PWM (pulse-width adjustment) ripple to two high-speed electromagnetic valve by electronic circuit, finally by ecp system, control waste gas bleed valve valve rod and move, thereby realize real-time, the free adjusting to engine charge pressure.
As shown in Figure 2, present embodiment relates to PWM (pulse-width adjustment) ripple that Engine ECU is carried two high-speed electromagnetic valves 2, described PWM ripple is that a series of amplitudes equate and the unequal pulse of width, and three pulses that start of take are example, and the time of each pulse is t
2, voltage V remains valid
1time be t
1, and meet t
4=2t
2, t
5-t
4=t
3-t
2=t
1.The PWM ripple signal that two solenoid valves 2 receive is according to Engine ECU result of determination and difference drives signal, t as produced
1change, dutycycle changes, and t
2remain constant.Below electromagnetic valve strategy:
(1) waste gas bleed valve is opened: when the suction pressure of motor in instantaneous conditions and Engine ECU collection surpasses predefined suction pressure limit value, Engine ECU is sent pwm control signal, t to the air inlet electromagnetic valve 2 of controlling suction port 1
1time size by pid algorithm, determined, the now periodically adhesive of air inlet electromagnetic valve 2 at suction port 1 place, thereby suction tude inner high voltage air is entered in cavity volume 3 by suction port 1, because relief opening 5 is now closed, thereby high-pressure air is finally controlled waste gas bleed valve valve rod 8 by control mouthful 6 promotion diaphragms 7 and is opened, part waste gas bypass in turbo machine.The suction pressure gathering when Engine ECU during lower than suction pressure limit value, is controlled t by pid algorithm
1pulsewidth time decreased, thereby finally reach the object that reduces suction pressure.
(2) waste gas bleed valve return: the suction pressure gathering in instantaneous conditions and Engine ECU when motor is during lower than predefined suction pressure limit value, and Engine ECU is sent pwm control signal, t to the exhaust solenoid valve 4 of controlling relief opening 5
1time size by pid algorithm, determined, the now periodically adhesive of exhaust solenoid valve 4 at relief opening 5 places, thus the high-pressure air in cavity volume 3 is discharged in atmosphere by relief opening 5.Because suction port 1 is now closed, relief opening 5 is opened, the gas pressure fast reducing in cavity volume 3, and the returning quickly of diaphragm 7 makes waste gas bleed valve valve rod 8 returns, and all waste gas does work by turbo machine.
(3) waste gas bleed valve keeps: when the suction pressure of motor in steady state condition and Engine ECU collection surpasses predefined suction pressure limit value, Engine ECU is sent pwm control signal, t to air inlet electromagnetic valve 2 and the exhaust solenoid valve 4 of controlling suction port 1 and relief opening 5 respectively
1time be zero, two solenoid valves are all in normally off, and suction port 1 and relief opening 5 are closed, and now the high-pressure air in cavity volume 3 only communicates with control mouth 6, diaphragm 7 keeps under certain gas load, thereby makes waste gas bleed valve valve rod 8 in holding position.
Claims (2)
1. the ecp system regulating for engine booster, it is characterized in that comprising: described ecp system changes the suction pressure of control engine by the pressure in cavity volume (3), cavity volume respectively with suction port (1), relief opening (5) and control mouthful (6) are communicated with, on suction port (1) and relief opening (5), be equipped with respectively air inlet electromagnetic valve (2) and exhaust solenoid valve (4), two solenoid valves are connected with Engine ECU by electronic circuit, suction port (1) and relief opening (5) are communicated with engine air inlet tube and atmosphere respectively, control mouthful (6) and by diaphragm (7), control the waste gas bleed valve valve rod (8) of turbo machine.
2. the ecp system regulating for engine booster according to claim 1, is characterized in that, described air inlet electromagnetic valve (2) and exhaust solenoid valve (4) are the normally closed high-speed electromagnetic valve of 2/2-way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420098284.8U CN203769933U (en) | 2014-03-04 | 2014-03-04 | Electric controlling pneumatic system used for engine supercharging adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420098284.8U CN203769933U (en) | 2014-03-04 | 2014-03-04 | Electric controlling pneumatic system used for engine supercharging adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203769933U true CN203769933U (en) | 2014-08-13 |
Family
ID=51287132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420098284.8U Expired - Lifetime CN203769933U (en) | 2014-03-04 | 2014-03-04 | Electric controlling pneumatic system used for engine supercharging adjustment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203769933U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484857A (en) * | 2015-12-11 | 2016-04-13 | 中国北方发动机研究所(天津) | Pressurization regulating and controlling device based on high-frequency electromagnetic valves |
| CN108622059A (en) * | 2018-05-09 | 2018-10-09 | 浙江荣众机械有限公司 | The automatically controlled gas braking pressure control method and device of commercial car |
| CN113804373A (en) * | 2020-06-12 | 2021-12-17 | 郑州宇通客车股份有限公司 | Battery pack air tightness detection method |
-
2014
- 2014-03-04 CN CN201420098284.8U patent/CN203769933U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484857A (en) * | 2015-12-11 | 2016-04-13 | 中国北方发动机研究所(天津) | Pressurization regulating and controlling device based on high-frequency electromagnetic valves |
| CN108622059A (en) * | 2018-05-09 | 2018-10-09 | 浙江荣众机械有限公司 | The automatically controlled gas braking pressure control method and device of commercial car |
| CN113804373A (en) * | 2020-06-12 | 2021-12-17 | 郑州宇通客车股份有限公司 | Battery pack air tightness detection method |
| CN113804373B (en) * | 2020-06-12 | 2023-12-15 | 宇通客车股份有限公司 | Battery pack air tightness detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180813 Address after: 053400 No. 94 Ningwu West Road, Wuyi Economic Development Zone, Hengshui, Hebei Patentee after: Hebei bit Power Technology Co.,Ltd. Address before: 100081 Beijing Haidian District Zhongguancun South Street 5 1 District 689 Building 2 floors 215 Patentee before: BEIJING BITEC Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP02 | Change in the address of a patent holder |
Address after: 053400 596 Xingwang Road, Wuyi County, Hengshui City, Hebei Province Patentee after: Hebei bit Power Technology Co.,Ltd. Address before: 053400 No. 94 Ningwu West Road, Wuyi Economic Development Zone, Hengshui, Hebei Patentee before: Hebei bit Power Technology Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 596, Xingwang Road, Wuyi County, Hengshui City, Hebei Province 053400 Patentee after: Hebei bit Power Technology Co.,Ltd. Address before: 053400 596 Xingwang Road, Wuyi County, Hengshui City, Hebei Province Patentee before: Hebei bit Power Technology Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 596, Xingwang Road, Wuyi County, Hengshui City, Hebei Province 053400 Patentee after: Hebei Zhongju Machinery Manufacturing Co.,Ltd. Address before: No. 596, Xingwang Road, Wuyi County, Hengshui City, Hebei Province 053400 Patentee before: Hebei bit Power Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
|
| CX01 | Expiry of patent term |