CN2497055Y - Electric control device for LPG, CNG/diesel oil dual-fuel automobile engine - Google Patents
Electric control device for LPG, CNG/diesel oil dual-fuel automobile engine Download PDFInfo
- Publication number
- CN2497055Y CN2497055Y CN 01245317 CN01245317U CN2497055Y CN 2497055 Y CN2497055 Y CN 2497055Y CN 01245317 CN01245317 CN 01245317 CN 01245317 U CN01245317 U CN 01245317U CN 2497055 Y CN2497055 Y CN 2497055Y
- Authority
- CN
- China
- Prior art keywords
- sensor
- lpg
- cng
- controller
- automobile engine
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 13
- 239000002283 diesel fuel Substances 0.000 title abstract description 9
- 239000000523 sample Substances 0.000 claims description 4
- 239000000779 smoke Substances 0.000 abstract description 7
- 230000001133 acceleration Effects 0.000 abstract description 5
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 15
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The electric controller for LPG and CNG/diesel oil double fuel automobile engine includes sensor and control circuit, and features that the control circuit consists of serial A/D converter, monochip computer, controller, step motor, relay and solenoid valve. The sensor consists of a load sensor, an accelerator position sensor, a temperature exhaust sensor, a rotating speed sensor, a pedal action position sensor and an oxygen sensor. The supply amount of LPG or CNG can be increased by controlling the stepping motor and the electromagnetic valve, thereby reducing the acceleration smoke intensity and the pollutant emission of the automobile engine.
Description
The utility model patent relates to duel fuel engine, the gas combustion automobile of LPG (liquefied petroleum gas (LPG)), CNG (compressed natural gas), refers in particular to a kind of LPG, CNG/ diesel dual-fuel automotive electronic control system device.
Diesel engine refitted is become LPG/ diesel oil or CNG/ diesel dual-fuel motor, can alleviate the shortage of petroleum resources, particularly can effectively suppress the discharging of visual pollutant (smoke intensity).General LPG/ diesel oil or CNG/ diesel dual-fuel motor, its smoke emission has only 1/8～1/10 of diesel engine.This reduces city fog to reducing the smoke emission of diesel-oil vehicle, has important effect.But for LPG/ diesel oil or CNG/ diesel dual-fuel automobile, must spray into more diesel oil earlier when quickening could raise speed, and this moment, engine speed did not rise as yet, air inlet has certain hysteresis, the fuel oil that sprays into be under the situation that air motion etc. lags behind in cylinder with air mixing and burning, therefore have the acceleration phenomenon of smoldering inevitably.
The purpose of this utility model provides a kind of acceleration smoke intensity of motor car engine and LPG, CNG/ diesel dual-fuel automotive electronic control system device that discharges pollutants of reducing.
The purpose of this utility model is achieved in that electric controller comprises sensor and control circuit, it is characterized in that control circuit is made up of serial a/d transducer, single-chip microcomputer, controller, stepper motor, relay, solenoid valve, the input end of serial a/d transducer links to each other with sensor, the output terminal of single-chip microcomputer links to each other with controller, relay respectively, controller connects stepper motor, and relay connects solenoid valve.
Sensor is made up of load sensor, throttle position switch, exhaust temperature sensor, speed probe, pedal operating position sensor, lambda sensor.
Advantage of the present utility model is to adopt sensor that signal is passed to single-chip microcomputer, by the software of establishment the operation conditions of motor is differentiated, thereby the control step motor increases the delivery volume of LPG or CNG, reaches the acceleration purpose.Because LPG, CNG are easy and air mixing, burning is complete, and the oil mass overshoot situation when not existing simultaneously diesel injection pump to increase (promptly quickening) suddenly at fuel delivery is so can reduce acceleration over-emitting black exhaust phenomenon.After treating that engine speed improves, increase the fuel injection quantity of diesel oil again, the ratio that makes LPG, CNG and diesel oil is in a suitable scope, thereby realization reduces the purpose of quickening smoke intensity.
Fig. 1 is a structured flowchart of the present utility model,
Fig. 2 is circuit theory diagrams of the present utility model.
As shown in the figure, the load sensor B7 that sensor is linked to each other with diesel engine by an end, throttle position switch B8, exhaust temperature sensor B9, speed probe B10, lambda sensor B12 and pedal operating position sensor B11 form, these sensors are magnetoelectric transducer except that exhaust temperature sensor B9, exhaust temperature sensor B9 is a thermocouple sensor, control circuit comprises serial a/d transducer 6, single-chip microcomputer 3, controller 4, stepper motor 5, relay 2, solenoid valve 1, the model of serial a/d transducer U6 is TLC2543, the model of single-chip microcomputer U3 is AT89C51, the model of controller U4 is ZJ84.
After its working principle is the diesel engine running, load sensor B7, exhaust temperature sensor B9, throttle position switch B8, lambda sensor B12 and pedal operating position sensor B11 accept coherent signal, be transferred to multi-channel serial A/D converter U6 respectively, signal is sent into single-chip microcomputer U3, the signal of speed probe B10 is directly sent into single-chip microcomputer U3 by T0, by the built-in control program of single-chip microcomputer U3 according to the running operating mode of diesel engine and built-in control data table, at P1.4, P1.5, P1.6, output signal to controller U4 on the P1.7, come the action of control step motor 5 to adjust the air demand of LPG.In the vehicle traveling process in moment of anticlimax speed (brake), throttle position signal imports single-chip microcomputer rapidly into, handle by analysis the back by P3.1, P3.2 output to relay J 1, J2 comes control electromagnetic valve to realize the flow control of LPG, increase or reduce the amount of the LPG that flows into cylinder, reach and reduce the purpose of quickening smoke intensity.
Claims (2)
1. LPG, CNG/ diesel dual-fuel automotive electronic control system device, comprise sensor and control circuit, it is characterized in that control circuit is by serial a/d transducer (U6), single-chip microcomputer (U3), controller (U4), stepper motor (5), relay (J1, J2), solenoid valve (1) is formed, the input end of serial a/d transducer (U6) and sensor (B7, B8, B9, B11, B12) link to each other, the output terminal of single-chip microcomputer (U3) respectively with controller (U4), relay (J1, J2) link to each other, controller (U4) connects stepper motor (5), and relay (J1J2) connects solenoid valve (1).
2. LPG according to claim 1, CNG/ diesel dual-fuel automotive electronic control system device is characterized in that sensor is made up of load sensor (B7), throttle position switch (B8), exhaust temperature sensor (B9), speed probe (B10), pedal operating position sensor (B11), lambda sensor (B12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01245317 CN2497055Y (en) | 2001-08-10 | 2001-08-10 | Electric control device for LPG, CNG/diesel oil dual-fuel automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01245317 CN2497055Y (en) | 2001-08-10 | 2001-08-10 | Electric control device for LPG, CNG/diesel oil dual-fuel automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2497055Y true CN2497055Y (en) | 2002-06-26 |
Family
ID=33656585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01245317 Expired - Fee Related CN2497055Y (en) | 2001-08-10 | 2001-08-10 | Electric control device for LPG, CNG/diesel oil dual-fuel automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2497055Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101506506B (en) * | 2006-06-01 | 2011-06-15 | 西门子汽车系统有限公司 | Method and apparatus for supplying fuel of LPG car having LPI system |
| CN102767435A (en) * | 2012-07-25 | 2012-11-07 | 镇江恒驰科技有限公司 | Method for controlling diesel-alternative fuel engines by throttle position signal conversion |
| CN102953846A (en) * | 2011-08-25 | 2013-03-06 | 上海格令汽车电子有限公司 | Electric-control system and electric-control method for dual-purpose fuel engine |
| CN105698725A (en) * | 2016-01-15 | 2016-06-22 | 重庆科克发动机技术有限公司 | Accelerator position measurement device of dual-fuel engine |
-
2001
- 2001-08-10 CN CN 01245317 patent/CN2497055Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101506506B (en) * | 2006-06-01 | 2011-06-15 | 西门子汽车系统有限公司 | Method and apparatus for supplying fuel of LPG car having LPI system |
| CN102953846A (en) * | 2011-08-25 | 2013-03-06 | 上海格令汽车电子有限公司 | Electric-control system and electric-control method for dual-purpose fuel engine |
| CN102953846B (en) * | 2011-08-25 | 2017-05-17 | 上海格令汽车电子有限公司 | Electric-control system and electric-control method for dual-purpose fuel engine |
| CN102767435A (en) * | 2012-07-25 | 2012-11-07 | 镇江恒驰科技有限公司 | Method for controlling diesel-alternative fuel engines by throttle position signal conversion |
| CN102767435B (en) * | 2012-07-25 | 2015-01-28 | 镇江恒驰科技有限公司 | Method for controlling diesel-alternative fuel engines by throttle position signal conversion |
| CN105698725A (en) * | 2016-01-15 | 2016-06-22 | 重庆科克发动机技术有限公司 | Accelerator position measurement device of dual-fuel engine |
| CN105698725B (en) * | 2016-01-15 | 2018-06-01 | 重庆科克发动机技术有限公司 | A kind of accelerator position measuring equipment of dual fuel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |