CN2536433Y - Gas vehicle electric controller - Google Patents
Gas vehicle electric controller Download PDFInfo
- Publication number
- CN2536433Y CN2536433Y CN 02221979 CN02221979U CN2536433Y CN 2536433 Y CN2536433 Y CN 2536433Y CN 02221979 CN02221979 CN 02221979 CN 02221979 U CN02221979 U CN 02221979U CN 2536433 Y CN2536433 Y CN 2536433Y
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- gas
- oil
- computer
- pressure
- gasoline
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Abstract
A civil electronic injection vehicle converting CNG adopts imported products, which has the shortcomings of high cost, numb operation, and needs manual regulation with devices. The utility mode comprises a CNG gas bottle, a high pressure pipeline, a high pressure magnetic valve, a pressure reduction regulator, and a low pressure pipeline and the like, which is characterized in that the lower pressure pipeline is provided with a step-by-step motor and a mixer, and an oil gas conversion switch is arranged on an instrument desk whose appropriate position is provided with a fuel gas computer controller. The computer is respectively connected with the high pressure magnetic valve, the step-by-step motor, a nozzle public end, a fuel gas pump reply, an oxygen sensor, an air control shutter position sensor, and a rotary speed sensor. When gas is used, the space between a fuel gas computer and a gasoline computer of an original computer is connected by false oxygen signal, a simulator cuts off the working of a nozzle and sends the simulated signal to the gasoline computer to guarantee the normal working. The utility model has the advantages of simple structure, low cost, convenient and simple installation, flexible operation, and the oil gas conversion switch can display the thickness of mixing gas and the pressure of the gas bottle, and improves the service life of the oil pump and the nozzle, and the motor can work under the condition of the theory empty combustion ratio, and the performance is stable.
Description
Technical field
It is the fuel feeding of automobile of EFI dual-purpose fuel and the electrical controller of the gas combustion automobile that control system is formed with gasoline, compression natural gas that the utility model relates to a kind of.
Background technology
Development and national economy needs increasing automobile, and these are various types of EFI cars of fuel with gasoline, diesel oil, and the raw material enormous amount that consumes petroleum has fuel crunch anxious, also quite serious to the pollution of air environment on the other hand on the one hand.Development of natural gas is made the fuel of EFI car, not only can alleviate oil-fired active demand, also to alleviate the pollution to air environment.The CNG of EFI car repacking at present car is more and more.Domestic EFI car repacking CNG all adopts imported product, the cost height, use inconvenient, operate dumb, except that the CNG computer, also need to install emulator, the vehicle debugging also needs special-purpose manual operator with maintenance, and petrol feed pump is still in work, the life-span of greatly having reduced oil pump during combustion gas, and can't show gas concentration on the change-over swith, inconvenient debugging, maintenance and driver grasp the engine gas troubled water at any time.
Summary of the invention
Goal of the invention of the present utility model is: a kind of simple in structure, low cost of manufacture is provided, carry out oil, gas shift flexible operation, on change-over swith, can show CNG pressure in air mixture concentration and the gaholder, make things convenient for driver observation, oil pump cuts off the power supply automatically and prolongs oil pump service life, debugs without manual operator when using natural fuels, simple installation, driving engine is all being worked under theoretical air/fuel ratio under the different situations, the electric control gear of gas vehicle of stable performance.
Invention of the present utility model realizes by implementing following technical proposals:
A kind of electric control gear of gas vehicle that is installed on the gasoline electric injection car, by CNG compression natural gas gaholder, with gas storage cylinder valve bonded assembly pressure duct, with this pipeline end bonded assembly high-pressure solenoid valve, and and this electromagnetic valve bonded assembly pressure reducing regulator, constitute with assembly such as pressure reducing regulator output port bonded assembly low pressure line, it is characterized in that: be installed in the stepping motor automatically regulating power valve (abbreviation stepping motor) on the low pressure line in addition, and be contained in the mixer in this exit, low-voltage tube end, be installed in the oil-gas change-over switch of being convenient to driver's operation on the Auto Instrument desk, be installed in away from heat spot, away from high-tension line, away from the possibility leakage area, combustion gas computer controller in the headstock on the correct position; This controller respectively with pressure duct on high-pressure solenoid valve, stepping motor, shower nozzle common port, fuel pump relay the control signal wire joint is all arranged, and the exhaust gas oxygensensor of oil-gas change-over switch, former car, throttle position sensor and tachogen all have signal wire (SW) to be connected with the combustion gas computer controller respectively; When using gas, be provided with and make that the generation false oxygen signal is connected between combustion vapour computer controller and former car gasoline computer controller, and the work of simulator blocking-up shower nozzle, and the signal that will simulate the shower nozzle action be transferred to the gasoline computer controller, the circuit of assurance gasoline computer normal operation.
Electric control gear of gas vehicle additional technical feature of the present utility model is: mouth is equipped with the sensor of measuring CNG pressure in the gaholder at the admission port place of pressure reducing regulator, by lead-in wire pressure signal is shown with the tolerance display lamp that is contained in different colours on the oil-gas change-over switch; 2. on the oil-gas change-over switch of control gasoline and CNG conversion, be respectively arranged with fuel oil and combustion gas relay indicating light, receive the control of combustion gas computer controller; At the fuel oil state, " oil " indicator lamp is bright, and " gas " indicator lamp extinguishes; At the combustion gas state, the flicker of bright and " oil " indicator lamp of " gas " indicator lamp, the expression air-fuel mixture strength is moderate, and " oil " indicator lamp does not work for a long time, and the expression mixture gas is rare partially; " oil " indicator lamp Chang Liang, the expression mixture gas is dense partially.
Advantage of the present utility model is: 1. this apparatus structure is simple, low cost of manufacture; 2. without manual operator, debug simple installation; 3. it is flexible to carry out the oil gas conversion operations; 4. oil-gas change-over switch is contained on the Auto Instrument desk, and can show CNG pressure in air mixture concentration and the gaholder on this switch, makes things convenient for driver observation; 5. use natural fuels, oil pump cuts off the power supply automatically and prolongs the service life of pump; 6. the combustion gas computer controller can be accurately immediately according to throttle position signal, tach signal and oxygen sensor signal control step motor, regulate the low pressure line channel cross-section, control CNG delivery volume makes driving engine all can work stable performance under theoretical air/fuel ratio under the different conditions.
Description of drawings Fig. 1 is that the utility model apparatus structure and control principle scheme drawing Fig. 2 are that combustion gas computer controller and control mechanism scheme drawing Fig. 3 are that combustion gas computer controller and control mechanism schematic circuit diagram Fig. 4 are oil in the utility model device, gas fuel diagram of circuit Fig. 5 is the combustion gas computer controller, gasoline computer controller and simulator and shower nozzle connection diagram Fig. 6 are the 3. middle mark of the utility model combustion gas closed loop control circuit connection diagram figure: the U1A op amp, U2 is the three terminal regulator of output 5 volts and 12 volts, U3 is a P1C16 series cpu chip (this figure is P1C16C73B), U4 is a sign-changing amplifier, U5 is the photoelectricity integrated pipe that is coupled, U6 is the step motor drive piece, U7 is a memory, RE1 does not have the electromagnetic valve of oil for the outage of control shower nozzle, RE2 is the electromagnetic valve of control gas circuit, RE3 is the electromagnetic valve of the single shower nozzle of control, RE4 is the electromagnetic valve of control gas circuit, RE5 is the electromagnetic valve of control oil pump, J
1, J
2Be the computer wiring board.
In specific embodiment the utility model device: one, power supply:
The computer wiring board J1 15 pin inputs 12V that pegs graft, power supply be by the unidirectional isolation of D1, R8, R9 current limliting, the two-way absorption diode of DW1, and C5, C11 are to the 12V power filter.Provide 12 power supplys for U1, U6, U4 electricity consumption.U2 three end 5V voltage stabilizers, output 5V supplies with U3, U7, U6 and bias supply by C4, C18 filtering called after VCC.Two, oxygen sensor signal
Oxygen sensor signal is by peg graft 14 pin input of computer plate J1, with oil the time, by the normally closed contact of relay R E1, through the J1 3 pin output of pegging graft; Promptly when using gasoline, the exhaust gas oxygensensor of former car is directly to advance directly.
When using gas, oxygen sensor signal meets R6, is amplified into the RA0 of computer U3 by isolation.The normally closed contact of relay R E1 disconnects, and 3,4 pin of RE1 communicate, and the false oxygen signal of computer RA4 output is sent into grafting 3 pin of J1.Three, throttle position signal
Throttle position signal enters by grafting 9 pin of J1, meets computer RA1 by R11.Four, tach signal
Tach signal enters by grafting 8 pin of J1, and being coupled by U5 photoelectricity enters U3 computer RC2 behind the integrated pipe.Five, the RB2 of step motor control U3, RB3, RB4, RB5, RB6, RB7 be by certain sequential output control by pulses U6, and four terminals of 3,6,11,14 control step motors by U6 are realized the upper and lower motion of motor.Six, electric oil pump, gas electromagnetic valve, shower nozzle control, oxygen signal control
After the RC0 of U3, RC1, RC7, RA5, RB1 output were oppositely amplified by U4, control RE2, RE3, RE4, RE5, RE1 relay disconnected with closed.Seven, combustion gas computer controller
The combustion gas computer controller receives the instruction of oil-gas change-over switch, and according to the opening and closing of tach signal control pressure reducing regulator electromagnetic valve, control shower nozzle and electric fuel oil pump work or quit work; According to throttle position signal, tach signal, oxygen sensor signal control step motor, regulate the low pressure line channel cross-section, the delivery volume of control CNG is all being worked driving engine, and the concentration of mixture gas is presented on the oil-gas change-over switch under theoretical air/fuel ratio under the different operating modes.
Stepping motor described here is actually a self-regulating power valve of band stepping motor.Eight, detect gaholder pressure, show by gauge outfit, and force value is converted to electric signal, show by five tolerance display lamps that are contained on the oil-gas change-over switch: the 0-4Mpa red light is bright; The 4-8Mpa red light extinguishes, and a green light is bright; The 8-12Mpa red light extinguishes, and two green lights are bright; The 12-16Mpa red light extinguishes, and three green lights are bright; The 16-20Mpa red light extinguishes, and four green lights are bright.
The utility model is that market is being used on the analytical investigation basis of gas combustion automobile closed-loop control device, and a kind of device that does not need manual operator that develops is applicable to China user, has the characteristics of commonality, interchangeability, economy.
The main control parameters of this gas combustion automobile closed-loop control device:
Gas circuit control current 10A
Oil circuit control current 10A
Shower nozzle control current 10A
Twin coil control current 4A
Oxygen sensor signal isolation resistance 1M Ω
Throttle signal isolation resistance 1M Ω
Tach signal isolation resistance 10K
Step motor control electric current 1A
Voltage impulse amount signal 0.40V---the 0.50V of exhaust gas oxygensensor during with gas
Main performance index
Engine rated power: be not less than 85% of former car
Maximum engine torque: be not less than 90% of former car
Automobile maximum speed: be not less than 90% of former car
The car acceleration time (gear shift acceleration): be not higher than 20% of former car
The minimum stabilizing speed of direct speed: be not higher than 5% of former car
Automobile gas emission pollution: CO content≤2.2g/KM; HC+NO
xContent≤0.5g/KM
The alternative gasoline of 1 cubic meter natural fuels: 1.2L
When using the combustion gas of this device, economic performance obviously is better than fuel oil, and the exhaust emissions performance figure have by a relatively large margin improvement than fuel oil, and tractive performance can satisfy operating needs.
The utility model on Jetta and Citroen zx sample car, by the vehicle performance test of south, Sichuan natural gas-powered car inspection center, satisfies relevant technical standard and rules.
Claims (3)
1. electric control gear of gas vehicle that is installed on the gasoline electric injection car, by CNG compression natural gas gaholder, with gas storage cylinder valve bonded assembly pressure duct, with this pipeline end bonded assembly high-pressure solenoid valve, and and this electromagnetic valve bonded assembly pressure reducing regulator, constitute with assembly such as pressure reducing regulator output port bonded assembly low pressure line, it is characterized in that: be installed in the stepping motor automatically regulating power valve (abbreviation stepping motor) on the low pressure line in addition, and be contained in the mixer in this exit, low-voltage tube end, be installed in the oil-gas change-over switch of being convenient to driver's operation on the Auto Instrument desk, be installed in away from heat spot, away from high-tension line, away from the possibility leakage area, combustion gas computer controller in the headstock on the correct position; This controller respectively with pressure duct on high pressure magnet valve, stepping motor, shower nozzle common port, fuel pump relay the control signal wire joint is all arranged, and the exhaust gas oxygensensor of oil-gas change-over switch, former car, throttle position sensor and tachogen all have signal wire (SW) to be connected with the combustion gas computer controller respectively; When using gas, be provided with and make that the generation false oxygen signal is connected between combustion vapour computer controller and former car gasoline computer controller, and the work of simulator blocking-up shower nozzle, and the signal that will simulate the shower nozzle action be transferred to the gasoline computer controller, the circuit of assurance gasoline computer normal operation.
2. electric control gear of gas vehicle as claimed in claim 1, it is characterized in that: at the admission port place of pressure reducing regulator the sensor of measuring CNG pressure in the gaholder is installed, pressure signal is shown with the tolerance display lamp that is contained in different colours on the oil-gas change-over switch by lead-in wire.
3. electric control gear of gas vehicle as claimed in claim 1 is characterized in that being: on the oil-gas change-over switch of control gasoline and CNG conversion, be respectively arranged with fuel oil and combustion gas relay indicating light, receive the control of combustion gas computer controller; At the fuel oil state, " oil " indicator lamp is bright, and " gas " indicator lamp extinguishes; At the combustion gas state, the flicker of bright and " oil " indicator lamp of " gas " indicator lamp, the expression air-fuel mixture strength is moderate, and " oil " indicator lamp does not work for a long time, and the expression mixture gas is rare partially; " oil " indicator lamp Chang Liang, the expression mixture gas is dense partially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02221979 CN2536433Y (en) | 2002-03-25 | 2002-03-25 | Gas vehicle electric controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02221979 CN2536433Y (en) | 2002-03-25 | 2002-03-25 | Gas vehicle electric controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2536433Y true CN2536433Y (en) | 2003-02-19 |
Family
ID=33699976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02221979 Expired - Fee Related CN2536433Y (en) | 2002-03-25 | 2002-03-25 | Gas vehicle electric controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2536433Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448534A (en) * | 2013-08-16 | 2013-12-18 | 东南（福建）汽车工业有限公司 | Natural gas leakage control device for CNG (compressed natural gas) automobile |
| CN105644352A (en) * | 2014-11-14 | 2016-06-08 | 天津市优耐特汽车电控技术服务有限公司 | Electric control device system for gas automobile |
-
2002
- 2002-03-25 CN CN 02221979 patent/CN2536433Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448534A (en) * | 2013-08-16 | 2013-12-18 | 东南（福建）汽车工业有限公司 | Natural gas leakage control device for CNG (compressed natural gas) automobile |
| CN105644352A (en) * | 2014-11-14 | 2016-06-08 | 天津市优耐特汽车电控技术服务有限公司 | Electric control device system for gas automobile |
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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 |