CN104514651A - Multi-gear fuel pump control system and implementation method - Google Patents
Multi-gear fuel pump control system and implementation method Download PDFInfo
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- CN104514651A CN104514651A CN201310454837.9A CN201310454837A CN104514651A CN 104514651 A CN104514651 A CN 104514651A CN 201310454837 A CN201310454837 A CN 201310454837A CN 104514651 A CN104514651 A CN 104514651A
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Abstract
The invention discloses a multi-gear fuel pump control system. The multi-gear fuel pump control system comprises an engine controller for monitoring the working conditions of an engine, obtaining corresponding fuel supply gears according to the working conditions of the engine and sending gear selecting instructions to a fuel pump controller, the fuel pump controller which is used for sending driving signals to the fuel pump according to the gear selecting instructions, and the fuel pump for adjusting the fuel supply amount according to the driving signal. The invention also discloses an implementation method of the multi-gear fuel pump control system. The multi-gear fuel pump control system has the characteristics of simple structure and fast development; besides, the effects of saving energy and reducing noise just as a fuel pump controller continuously adjustable in oil supply amount, and prolonging the service life of the fuel pump are achieved.
Description
Technical field
The application relates to a kind of fuel oil supply system of vehicle, special for relating to a kind of fuel pump control system.
Background technique
The fuel oil supply system of vehicle can roughly be described as: fuel pump extracts fuel oil from fuel tank, and a part for the fuel oil extracted uses through the burning of oil nozzle supply engine, and another part is then got back among fuel tank.
Early stage fuel pump does not have controller, is only controlled by relay.Thus fuel pump only has two kinds of working staties: halted state does not extract fuel oil, and full-speed operation state is with maximum oil pumping ability fuel.Motor operationally has the various working such as low speed, sub load, idling, and these operating modes may not need a large amount of fuel oils.But fuel pump still needs full-speed operation, the fuel oil of great quantities of spare is caused to get back to fuel tank.Causing fuel pump unnecessarily produces energy consumption on the one hand for this, can affect the working life of fuel pump on the other hand, also can cause larger noise.
The Chinese invention patent application that publication number is CN101255835A, publication date is on September 3rd, 2008 discloses a kind of controller of engine fuel injection pump.Wherein adopt a microcontroller acquires fuel pressure transmitter and vehicle ECU signal, change the oil pumping amount of fuel pump at any time, make fuel pressure keep stable.The Chinese utility model patent that notification number is CN202867009U, the day for announcing is on April 10th, 2013 discloses a kind of FPC Fuel Pump Controller.Wherein adopt control module to gather the instruction of fuel injection control apparatus, regulate the fuel delivery of fuel pump according to required fuel delivery in real time.Above-mentioned two kinds of technological schemes can according to the fuel demand of Under Different Work Condition of Engine, regulates the oil pumping amount of amount of fuel continuously, to reach energy-conservation, the object that extends the fuel pump life-span, reduce noise.But need to increase extra microprocessor and periphery processing circuit, cause the hardware configuration of whole system complicated, and need for corresponding software developed separately by microprocessor.Also needing when carrying out practical application fuel pump control system and different engine flats to mate, causing development time longer, workload comparatively large, finally improving development cost, be difficult to the application demand meeting low cost vehicle.
Summary of the invention
Technical problems to be solved in this application are to provide a kind of fuel pump control system, reduce complexity and the cost of system on the one hand, the effect that can obtain again certain reduction energy consumption on the other hand, extend the fuel pump life-span, reduce noise.
For solving the problems of the technologies described above, the application's many gears fuel pump control system comprises:
---engine controller, the operating mode of monitor engines in real time, obtains corresponding fuel delivery gear according to the operating mode of motor, sends gear selection instruction to FPC Fuel Pump Controller;
---FPC Fuel Pump Controller, sends drive singal according to gear selection instruction to fuel pump;
---fuel pump, regulates fuel delivery according to drive singal.
The implementation method of the application's many gears fuel pump control system comprises the steps:
1st step, engine controller gathers the signal of speed probe and air inlet pressure sensor, judges the operating mode of motor in real time;
2nd step, engine controller, according to the operating mode inquiry fuel demand MAP of motor, obtains corresponding fuel delivery gear;
3rd step, engine controller sends gear selection instruction to FPC Fuel Pump Controller.
4th step, FPC Fuel Pump Controller, according to gear selection instruction, sends drive singal to fuel pump;
5th step, fuel pump regulates oil pumping amount according to drive singal.
The application's many gears fuel pump control system and its implementation have structure simple, develop feature rapidly, and achieve close to the FPC Fuel Pump Controller regulating fuel delivery continuously energy-saving and noise-reducing and promote the effect in fuel pump working life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the application's many gears fuel pump control system;
Fig. 2 is the flow chart of the implementation method of the application's many gears fuel pump control system.
Description of reference numerals in figure:
10 is ECU; 20 is FPC Fuel Pump Controller; 30 is fuel pump.
Embodiment
Refer to Fig. 1, the application's many gears fuel pump control system comprises:
---engine controller (ECU) 10, gathers the signal of speed probe and air inlet pressure sensor, judges the operating mode of motor.ECU10 also according to the operating mode inquiry fuel demand MAP of motor, obtains corresponding fuel delivery gear.ECU10 also sends gear selection instruction to FPC Fuel Pump Controller 20.
---FPC Fuel Pump Controller 20, sends drive singal according to gear selection instruction to fuel pump 30.Such as there is a multi-way switch circuit in FPC Fuel Pump Controller 20, be used for generating the PWM(pulsewidth modulation of different duty) signal to be to carry out selecting and switching in multiple fuel delivery gear.
---fuel pump 30, regulates fuel delivery according to drive singal.
Refer to Fig. 2, the implementation method of the application's many gears fuel pump control system comprises the steps:
1st step, ECU gathers the signal of speed probe and air inlet pressure sensor, judges the operating mode of motor in real time.Engine rotation speed sensor is used for distinguishing the rotating speed of motor, and engine charge pressure transducer is used for distinguishing the load of motor, and both determines the operating mode of motor.Such as, tach signal is classified as high, medium and low three gears, boost pressure signal is also classified as high, medium and low three gears, so the operating mode of motor has just been divided into 9 kinds.
2nd step, determines the fuel demand amount of each engine operating condition, then as the fuel delivery gear of the kind equal number with engine operating condition by the mode of demarcating.Or one or more close for fuel demand amount engine operating conditions are merged into a fuel delivery gear, and principle is the maximum fuel demand that the fuel pump fuel delivery of this gear is greater than one or more corresponding engine operating conditions.Corresponding relation between engine operating condition and fuel delivery gear is saved as fuel demand MAP.Such as, can using 9 kinds of engine operating conditions as 9 fuel delivery gears.Or, 9 kinds of engine operating conditions are merged and are summarized as 2 ~ 4 fuel delivery gears.If 2 fuel delivery gears, it is exactly the situation of the fuel pump of existing Control.If the fuel delivery gear of 4 or more, the energy-saving and noise-reducing effect close to the FPC Fuel Pump Controller regulating fuel delivery continuously can be reached.
3rd step, ECU sends gear selection instruction to FPC Fuel Pump Controller.
4th step, FPC Fuel Pump Controller, according to gear selection instruction, sends drive singal to fuel pump.Such as, each gear selection instruction corresponds to the pwm signal of different duty.
5th step, fuel pump is according to the duty cycle adjustment fuel delivery of drive singal and pwm signal.
Compared with the fuel pump of existing Control, this application provides the fuel delivery ability of many gears, be used for meeting the fuel demand of different engine operating conditions respectively, be conducive to energy-saving and noise-reducing, promote the working life of fuel pump.Experiment shows, when fuel delivery gear is more than 4, saves fuel oil 1 ~ 3%, and the noise of fuel pump reduces about 5dB.
Compared with the FPC Fuel Pump Controller of existing continuous adjustment fuel delivery, the application changes regulate continuously as discrete several gears adjustments into, because demand for control simplifies, no longer needs microprocessor.Thus the application no longer arranges independent microprocessor at oil pump controller end, and transfers to ECU to complete whole calculating and decision logic work.Due to the corresponding processing circuit of microprocessor and periphery thereof having given up FPC Fuel Pump Controller end, the hardware configuration of whole control system greatly simplifies; Also no longer need the control software design developing FPC Fuel Pump Controller end, this makes exploitation amount and development cost decline to a great extent, and eventually reduces cost.The fuel pump control system of this simplification needs modification exploitation just can be applied on different engine flats hardly, adds versatility and the flexibility of different platform application.Experiment shows, development amount reduces about 2/3, and development cost reduces by 2/3 ~ 3/4.
These are only the preferred embodiment of the application, and be not used in restriction the application.For a person skilled in the art, the application can have various modifications and variations.Within all spirit in the application and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the application.
Claims (5)
1. the fuel pump of gear a more than control system, is characterized in that, comprising:
---engine controller, the operating mode of monitor engines in real time, obtains corresponding fuel delivery gear according to the operating mode of motor, sends gear selection instruction to FPC Fuel Pump Controller;
---FPC Fuel Pump Controller, sends drive singal according to gear selection instruction to fuel pump;
---fuel pump, regulates fuel delivery according to drive singal.
2. many gears fuel pump control system according to claim 1, is characterized in that, has a multi-way switch circuit in FPC Fuel Pump Controller, is used for generating the pwm signal of different duty to carry out selecting and switching in multiple fuel delivery gear.
3. an implementation method for the fuel pump of gear more than control system, is characterized in that, comprise the steps:
1st step, engine controller gathers the signal of speed probe and air inlet pressure sensor, judges the operating mode of motor in real time;
2nd step, the operating mode inquiry fuel demand MAP that engine controller is different according to motor, obtains corresponding fuel delivery gear;
3rd step, engine controller sends gear selection instruction to FPC Fuel Pump Controller.
4th step, FPC Fuel Pump Controller, according to gear selection instruction, sends drive singal to fuel pump;
5th step, fuel pump regulates fuel delivery according to drive singal.
4. the implementation method of many gears fuel pump control system according to claim 3, it is characterized in that, the acquisition mode of described method the 2nd step intermediate fuel oil demand MAP is: all operating modes of motor are divided into multiple fuel delivery gear by fuel feeding demand, each fuel delivery gear is greater than the maximum fuel demand of one or more corresponding engine operating conditions, and the corresponding relation between engine operating condition and fuel delivery gear is saved as fuel demand MAP.
5. the implementation method of many gears fuel pump control system according to claim 3, is characterized in that, in described method the 4th step, drive singal is pwm signal, and each gear selection instruction corresponds to the pwm signal of different duty;
In described method the 5th step, fuel pump is according to the duty cycle adjustment fuel delivery of pwm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310454837.9A CN104514651B (en) | 2013-09-29 | 2013-09-29 | More gear fuel oil pump control systems and its implementation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310454837.9A CN104514651B (en) | 2013-09-29 | 2013-09-29 | More gear fuel oil pump control systems and its implementation method |
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| CN104514651A true CN104514651A (en) | 2015-04-15 |
| CN104514651B CN104514651B (en) | 2018-05-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298701A (en) * | 2015-11-11 | 2016-02-03 | 北汽福田汽车股份有限公司 | Automobile and control method and control system for fuel oil supply amount of automobile |
| CN106545430A (en) * | 2016-11-04 | 2017-03-29 | 力帆实业(集团)股份有限公司 | A kind of motorcycle fuel system control method |
| CN108979920A (en) * | 2018-08-02 | 2018-12-11 | 安徽江淮汽车集团股份有限公司 | A kind of control method and system of automobile fuel pump |
| CN111994016A (en) * | 2020-08-20 | 2020-11-27 | 深圳市元征科技股份有限公司 | Matching method and device for vehicle fuel pump, vehicle-mounted equipment and storage medium |
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| US20020174855A1 (en) * | 1999-02-17 | 2002-11-28 | Ilija Djordjevic | Hybrid control method for fuel pump using intermittent recirculation at low and high engine speeds |
| CN1434899A (en) * | 1999-12-18 | 2003-08-06 | 罗伯特-博希股份公司 | Method for controlling fuel pump |
| CN101435368A (en) * | 2008-12-15 | 2009-05-20 | 天津大学 | Full-automatic constant oil supply system of intelligent middle and low gear electric fuel injection engine automobile |
| CN101558232A (en) * | 2006-11-06 | 2009-10-14 | 卡特彼勒公司 | Selective displacement control of multi- plunger fuel pump |
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2013
- 2013-09-29 CN CN201310454837.9A patent/CN104514651B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020174855A1 (en) * | 1999-02-17 | 2002-11-28 | Ilija Djordjevic | Hybrid control method for fuel pump using intermittent recirculation at low and high engine speeds |
| CN1434899A (en) * | 1999-12-18 | 2003-08-06 | 罗伯特-博希股份公司 | Method for controlling fuel pump |
| CN101558232A (en) * | 2006-11-06 | 2009-10-14 | 卡特彼勒公司 | Selective displacement control of multi- plunger fuel pump |
| CN101435368A (en) * | 2008-12-15 | 2009-05-20 | 天津大学 | Full-automatic constant oil supply system of intelligent middle and low gear electric fuel injection engine automobile |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298701A (en) * | 2015-11-11 | 2016-02-03 | 北汽福田汽车股份有限公司 | Automobile and control method and control system for fuel oil supply amount of automobile |
| CN105298701B (en) * | 2015-11-11 | 2018-01-19 | 北汽福田汽车股份有限公司 | A kind of automobile and its fuel delivery amount control method and control system |
| CN106545430A (en) * | 2016-11-04 | 2017-03-29 | 力帆实业(集团)股份有限公司 | A kind of motorcycle fuel system control method |
| CN108979920A (en) * | 2018-08-02 | 2018-12-11 | 安徽江淮汽车集团股份有限公司 | A kind of control method and system of automobile fuel pump |
| CN111994016A (en) * | 2020-08-20 | 2020-11-27 | 深圳市元征科技股份有限公司 | Matching method and device for vehicle fuel pump, vehicle-mounted equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104514651B (en) | 2018-05-11 |
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