CN2916159Y - Deceleration oil-cut-off fuel economizer for electric jet vehicle - Google Patents
Deceleration oil-cut-off fuel economizer for electric jet vehicle Download PDFInfo
- Publication number
- CN2916159Y CN2916159Y CN 200520144003 CN200520144003U CN2916159Y CN 2916159 Y CN2916159 Y CN 2916159Y CN 200520144003 CN200520144003 CN 200520144003 CN 200520144003 U CN200520144003 U CN 200520144003U CN 2916159 Y CN2916159 Y CN 2916159Y
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- China
- Prior art keywords
- oil
- fuel
- position switch
- switch
- relay
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- 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
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- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
An electronic fuel injection vehicle fuel economizer by decelerate speed and fuel cut-off mode without restrain of the engine rotate speed is provided. A set of decelerate fuel cut-off circuit is provided outside the computer of the original vehicle, which is deemed as an idle position switch connected to the accelerator cable plastic wheel of the valve; a shift switch is connected to the gear shift axis of a gear-box; a clutch position switch is connected to the rotate arm of the clutch. The detailed operation of the fuel economizer is as following: the operator should snip the power cord of the fuel injection nozzle, couple in the normally open contact of the fuel cut-off relay, connect the idle position switch, the shift switch and the clutch position switch in parallel and then connect them to the fuel cut-off relay in series and connect to the battery cell power source to form a loop. The utility model, with the normally open contact of the fuel cut-off relay served as the control switch of the fuel injection nozzle power source and the parallel connection of the DC power source time delay circuit and the oxygen sensor, is used to correct the excess fuel injection.
Description
Affiliated technical field
When the utility model relates to the EFI car and slows down, reduce the gasoline-saving device of fuel consumption, a kind of device that especially can (middle low speed driving) fuel-economizing under the operating mode of city.
Background technique
At present, known in the design of existing EFI car DECEL ENLEAN, the fuel-economizing condition is: when engine speed during running at high speed more than 3500 rev/mins, former car computer inside stops can to reach DECEL ENLEAN to the oil nozzle power supply.But in China's city operating mode was used, engine speed seldom reached 3500 rev/mins.Therefore, above-mentioned fuel-economizing design is not brought into play practical function in China's city operating mode (middle low speed driving) is used.This has not only caused the waste of EFI car fuel, but also has polluted atmosphere environment.
Summary of the invention
In order to overcome existing EFI car under city operating mode (middle low speed driving), do not reach the fuel-economizing condition, can not realize the deficiency of DECEL ENLEAN, the utility model provides a kind of DECEL ENLEAN fuel economizer that is not subjected to the engine speed restriction, this fuel economizer is not limited by rotating speed, and no matter how many engine speed is, can realize DECEL ENLEAN, thereby reach the purpose of city operating mode (middle low speed driving) fuel-economizing, and reduced pollution atmosphere.
The technological scheme that its technical problem that solves the utility model adopts is: when EFI car deceleration regime, close the oil nozzle power supply, at former car computer outer installment one cover deceleration regime oil-break circuit, make it not controlled by engine speed, just can close the oil nozzle power supply, reach the purpose of fuel-economizing under the city operating mode (middle low speed driving); They are that the idle position switch is connected on the throttle line plastic wheel of valve body, and driving switch is connected on the gear shift Control Shaft of gearbox, and the clutch position switch is received on the pivoted arm of clutch; Cut off the oil nozzle power line, with the normally opened contact access of oil-break relay; Idle position switch, driving switch and clutch position switch in parallel are connected with the oil-break relay then, connect battery power and constitute the loop.The normally opened contact of oil-break relay is as the control switch of oil nozzle power supply; The delay circuit of external dc power supply and lambda sensor parallel operation are corrected the wrong enriching oil spout of lambda sensor.
When the driver lifts accelerator pedal and gear not at neutral gear.Idle position switch, driving switch and clutch position switch disconnect, the oil-break relay electric-loss, and its normally opened contact disconnects, and makes the oil nozzle outage, reaches the purpose of not oil spout, thereby realizes DECEL ENLEAN.
When DECEL ENLEAN realized, motor was an air toward the interior spray of baffler, and this can make lambda sensor think the oxygen content height by mistake, causes former car computer enriching fuel feeding.For addressing this problem, added the lambda sensor correction circuit that delays work.Find two signaling lines of lambda sensor, external dc power supply is inserted, its positive pole is connected with oxygen sensor signal line anode, and the negative terminal of oxygen sensor signal line is connected with the normally opened contact of time delay relay.
In lambda sensor delayed work the correction circuit, lambda sensor was in parallel with external dc power supply, and the access of external dc power supply is by the normally opened contact control of time delay relay, and external dc power supply is made of diode, battery and the series connection of pressure limiting resistance.Coil one end of time delay relay is connected with the normally opened contact that discharges and recharges control relay, and the other end links to each other with current-limiting resistance in turn with charge and discharge capacitance, links to each other with the stationary contact that discharges and recharges control relay to constitute the loop again.The normally-closed contact that discharges and recharges control relay connects an end of battery power, and the coil of time delay relay and the tie point of charge and discharge capacitance connect the other end of battery power.The coils from parallel connection of coils that discharges and recharges control relay is on the oil-break relay coil.
During DECEL ENLEAN, the oil-break relay electric-loss discharges and recharges also while dead electricity of control relay, and battery power charges to charge and discharge capacitance by the normally-closed contact that discharges and recharges control relay.When the driver depresses gas pedal, DECEL ENLEAN finishes, the oil-break relay has, discharging and recharging control relay also has electricity, and its normally-closed contact disconnects, the normally opened contact closure, charge and discharge capacitance is by the coil discharge of time delay relay, its normally opened contact closure makes external dc power supply and lambda sensor parallel operation, and time-delay a period of time.The magnitude of voltage of external dc power supply is 0.5V, and when lambda sensor thought that oxygen content is high by mistake, magnitude of voltage was 0.1V～0.3V, and the voltage summation of their parallel connections at this moment is the magnitude of voltage of external dc power supply, thereby gives the control signal of a correction of former car computer.During proper functioning, when the lambda sensor output voltage was 0.7V～0.9V, it and external dc power supply shunt voltage value were the virtual voltage of lambda sensor, and diode has stoped the loss of oxygen sensor voltage signal.Above-mentioned working procedure has effectively been avoided delaying work of lambda sensor.
The beneficial effects of the utility model are, do not change former car computer data, stay out of the internal control of former car computer, can directly be loaded on former car computer outside.Not limited by rotating speed, no matter how many engine speed is, can realize DECEL ENLEAN, thereby reaches the purpose of city operating mode (middle low speed driving) fuel-economizing, and reduced the pollution to atmosphere.Through the road test in 1 year, this device fuel saving ratio can reach more than 12%.It is simple in structure, does not influence any performance of former car, is applicable to all EFI cars.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the circuit theory diagrams of DECEL ENLEAN.
Fig. 2 is the lambda sensor correction circuit theory diagrams that delay work.
Lambda sensor among the figure on the 1. former cars, the 0.5V DC electrical source that 2. adds, 3. time delay relay, 4. discharge and recharge control relay, 5. charge and discharge capacitance 6. former car computer ECU, 7. diodes, 8. external dc battery, 9. pressure limiting resistance, 10. current-limiting resistance, 11. the idle position switch, 12. driving switch, 13. clutch position switches, 14. oil-break relay, 15,16. oil-break relay normally open contacts, 17. storage battery negative poles, 18. storage battery positive poles.
Embodiment
In Fig. 1, cut off the oil nozzle power line, the normally opened contact 15,16 of oil-break relay 14 is inserted, idle position switch 11, driving switch 12 and 13 parallel connections of clutch position switch, one end 17 of one termination battery power, the other end is connected with the coil of oil-break relay 14, and the other end of this coil links to each other with an end 18 of battery power.
In Fig. 2, diode 7, external dc battery 8, pressure limiting resistance 9 is connected with the normally opened contact of time delay relay 3, the positive pole of diode 7 links to each other with the anode of lambda sensor 1, the normally opened contact of time delay relay 3 is connected with lambda sensor 1 negative terminal, coil one end of time delay relay 3 with discharge and recharge control relay 4 normally opened contacts and link to each other, the other end links to each other with the negative pole of electric capacity 5 and connects the storage battery negative pole, the other end of electric capacity 5 is connected with current-limiting resistance 10, the other end of current-limiting resistance 10 links to each other with the stationary contact that discharges and recharges control relay 4, the normally-closed contact that discharges and recharges control relay 4 links to each other with storage battery anodal 18, discharges and recharges the coil two ends of the coils from parallel connection of coils of control relay 4 at oil relay 14.
Claims (1)
- A kind of EFI car DECEL ENLEAN fuel economizer when EFI car deceleration regime, cuts out the oil nozzle power supply, it is characterized in that: at former car computer outer installment one cover deceleration regime oil-break circuit, it is not controlled by engine speed, just can close the oil nozzle power supply; They are that the idle position switch is connected on the throttle line plastic wheel of valve body, and driving switch is connected on the gear shift Control Shaft of gearbox, and the clutch position switch is received on the pivoted arm of clutch; Cut off the oil nozzle power line, with the normally opened contact access of oil-break relay; Idle position switch, driving switch and clutch position switch in parallel are connected with the oil-break relay then, connect battery power and constitute the loop, and the normally opened contact of oil-break relay is as the control switch of oil nozzle power supply; Add the delay circuit and the lambda sensor parallel operation of 0.5V DC electrical source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520144003 CN2916159Y (en) | 2005-12-14 | 2005-12-14 | Deceleration oil-cut-off fuel economizer for electric jet vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520144003 CN2916159Y (en) | 2005-12-14 | 2005-12-14 | Deceleration oil-cut-off fuel economizer for electric jet vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2916159Y true CN2916159Y (en) | 2007-06-27 |
Family
ID=38187068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520144003 Expired - Fee Related CN2916159Y (en) | 2005-12-14 | 2005-12-14 | Deceleration oil-cut-off fuel economizer for electric jet vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2916159Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527337A (en) * | 2013-08-16 | 2014-01-22 | 浙江吉利汽车研究院有限公司 | Automotive deceleration and fuel cut control method |
| CN104843012A (en) * | 2015-05-18 | 2015-08-19 | 安徽江淮汽车股份有限公司 | Vehicle oil-saving system |
| CN104859636A (en) * | 2015-05-18 | 2015-08-26 | 安徽江淮汽车股份有限公司 | Vehicle oil saving control method |
-
2005
- 2005-12-14 CN CN 200520144003 patent/CN2916159Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527337A (en) * | 2013-08-16 | 2014-01-22 | 浙江吉利汽车研究院有限公司 | Automotive deceleration and fuel cut control method |
| CN103527337B (en) * | 2013-08-16 | 2018-01-23 | 浙江吉利汽车研究院有限公司 | Car deceleration fuel cut-off control method |
| CN104843012A (en) * | 2015-05-18 | 2015-08-19 | 安徽江淮汽车股份有限公司 | Vehicle oil-saving system |
| CN104859636A (en) * | 2015-05-18 | 2015-08-26 | 安徽江淮汽车股份有限公司 | Vehicle oil saving control method |
| CN104843012B (en) * | 2015-05-18 | 2017-09-19 | 安徽江淮汽车集团股份有限公司 | A kind of vehicle oil saving system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070627 Termination date: 20100114 |