CN107420211A - A kind of control method and system for position model electronic control dispensing pump - Google Patents
A kind of control method and system for position model electronic control dispensing pump Download PDFInfo
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- CN107420211A CN107420211A CN201710841982.0A CN201710841982A CN107420211A CN 107420211 A CN107420211 A CN 107420211A CN 201710841982 A CN201710841982 A CN 201710841982A CN 107420211 A CN107420211 A CN 107420211A
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- control module
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- injection pump
- oil mass
- oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/3082—Control of electrical fuel pumps
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
Abstract
The invention discloses a kind of control method and system for position model electronic control dispensing pump, method includes：A kind of intelligent control module is integrated on injection pump, the intelligent control module can store the basic MAP of each injection pump, such as rotating speed, oil mass and oil mass slip ring position relationship table, so that the uniformity of oil mass is protected.The intelligent control module is integrated in one with position model electronic control dispensing pump, and it is embedded in inside oil mass actuator, and it receives the oil mass position signalling and injection advance angle signal of ECU transmissions by bus, and oil mass actuator and timing magnetic valve are controlled.The inventive method can greatly reduce the probability of failure on wire harness, improve the reliability of system and solve existing position model electronic control dispensing pump because manufacturing mismachining tolerance, the inconsistent technical problem of injection pump oil mass, advance angle.
Description
Technical field
The present invention relates to the control method of position model electronic control dispensing pump and system.
Background technology
With the propulsion of national energy-saving emission reduction regulation, the kernel component fuel system as diesel engine also exists always
Upgrading, such as the application of electric control fuel system on a diesel engine are more and more extensive.Electronic control dispensing pump fuel system is a kind of at present
Solves the electric control fuel system scheme of diesel emission upgrading, it mainly controls formula electronic control dispensing pump system, its core by position
It is position model electronic control dispensing pump and engine control module（ECU）And fuel injector.But existing position model electric control fuel system exists
Some risks on homogeneity of product and system reliability be present, especially in the application ring harsh to reliability requirement such as non-rice habitats
Border.
Existing position model electronic control dispensing pump is mainly by distributive value governor motion, injection timing governor motion, pump oil part
With distribution member（Plunger）Deng composition, it forms electronic control dispensing pump fuel system with ECU, fuel injector and related sensor.With
The upgrading of Abgasgesetz, more and more higher is required to the conformity of production of injection pump.And traditional position model electronic control dispensing pump due to
The scattered error of component of machine processing, the uniformity of oil mass under every speed can not be ensured.In addition, due to ECU and automatically controlled point
Connected with the engine or overall wire sheaves between pump by relatively long distance, the connector on these wire harness often goes out in actual use
The integrity problem that existing loose contact or circuit burn.
Position model electronic control dispensing pump is mainly used on diesel engine, it and control unit of engine（ECU）, fuel injector form
Fuel system, be responsible for diesel oil from low pressure oil way suck, and in good time, in right amount be ejected into combustion chambers burn.It is existing domestic and international
Solution：Include Bosch, Jack Sai Er and the country Wei Fujinning companies position model electronic control dispensing pump, there is provided solution party
Case is all integrated electronic fuel-flow control module on pump, by the sliding sleeve on the module drive plunger, so as to control the size of distributive value.
There is the scattered error that most important deficiency is due to machine-building and electric parts in current electric control fuel system to ask
Topic, causes distributive value of each pump in same rotating speed, same slip ring position to be consistent, so as to cause engine power
The scattered error of moment of torsion, the national legislation that can not increasingly meet to gradually step up is to discharging the requirement with homogeneity of product.Such as when
Under some operating mode, fuel system prepares injection 10cc oil mass.Because distributive value is related to rotating speed, oil mass slip ring position, ECU will
Drive position of the oil mass actuator turns on injection pump to 23%.But the problem of crucial, is, each position model oil spout dispatched from the factory
The scattered error that pump is processed due to component of machine, same rotating speed between different injection pumps, the distributive value on oil mass slip ring position not phase
Together, for example, it is corresponding at 23% position be 10 ± 1cc.
In existing position model electronic control dispensing pump control system scheme, vehicle/complete machine, engine and oil spout pumping system phase
The sensor signal of pass fully enters a unique control unit of engine（ECU）On, and vehicle/whole is carried out by the ECU
The control of all actuators of different parts on machine.So that distributive value controls as an example, its realizing route is introduced.ECU is according to receiving
Engine, the signal of change such as rotating speed go out the distributive value of target；Then ECU goes out further according to the value computation of table lookup of rotating speed and distributive value
The oil mass slip ring position of target, fuel-flow control is realized finally by the oil regulator on driving injection pump.As shown in Figure 2.By
In in actual use, to facilitate installation, ECU and injection pump are not complete use.So rotating speed SP, spray in Fig. 2
Relation between oil mass Q and oil mass slip ring position S is to take the oil spout Pump data of intermediateness or mean state, and it is simply a kind of flat
Data in average meaning.Therefore when different ECU matches from different injection pumps, the inconsistent phenomenon of oil mass just occurs.
In addition, the stability problem of system.Due to having oil mass position signalling, injection advance angle on position model electronic control dispensing pump
Signal, oil mass actuator driven, timing solenoid-driven etc., signal is more, as ECU with injection pump apart from distant and middle
Connector it is relatively more in the case of, in the presence of a harsh environment, especially non-rice habitats equitemperature, vibration it is larger in the case of, easily
There is the situation of loose contact between ECU and injection pump, cause the ill effects such as engine shutdown.
The content of the invention
For above-mentioned technical problem, the present invention proposes a kind of control method and system for position model electronic control dispensing pump,
Can solve pump oil amount, advance angle consistency problem and the probability for greatly reducing failure on wire harness, improve system can
By property.
In order to realize above-mentioned technical purpose, the present invention is using following specific technical scheme：
A kind of control method for position model electronic control dispensing pump, this method are based on setting two individual control modules, are respectively
The first control module of setting on the engine and the second control module being arranged on injection pump, including following steps：
Step S1, described first control module collection present engine rotating speed electric signal and vehicle signal of change go out target
Oil spout value, the injection advance angle value of target, the expectation state signal value of the enterprising solenoid of injection pump and engine speed letter
Number value, and is transferred to the second control module by the aforementioned four signal value calculated；
Step S2, the aforementioned four signal value that the second control module transmits according to the first control module carries out following three actions,
It is respectively：
Distributive value is adjusted：Engine rotational speed signal value that second control module transmits according to the first control module, target distributive value
Value and combination calculate the oil mass slip ring position of target received from the temperature signal that fuel temperature sensor on injection pump gathers
Put, then by the target oil mass slip ring position of above-mentioned gained and received from the oil mass slip ring position sensor signal one on injection pump
Rise, calculate suitable driving current, drive the oil regulator on injection pump, oil regulator is reached the oil of target
Measure slip ring position；
Injection advance angle is adjusted：The target injection advance angle signal that second control module transmits according to the first control module, with reference to
Received from the timing stroke sensor signal on injection pump, suitable driving current is calculated, driving timing magnetic valve makes
Injection advance angle reaches target location；
Oil-feed solenoid valve control：The enterprising solenoid of injection pump that the reception of second control module is transmitted from the first control module
The enterprising solenoid of injection pump is driven to open or close after expectation state signal value.
In step S1, the vehicle signal includes：Accelerator pedal signal, admission pressure temperature signal, engine coolant
Temperature signal, GES, key switch signal and brake switch signal.
In step S2, pid control algorithm is used when driving the oil regulator on injection pump.
In step S2, driving timing magnetic valve carries out using pid control algorithm during oil spout.
A kind of control system for position model electronic control dispensing pump, including engine, injection pump, the first control module,
Two control modules, fuel temperature sensor, fuel-flow control module, timing magnetic valve, enter solenoid, oil mass slip ring position sensing
Device and timing stroke sensor, wherein,
The first control module bag is set on the engine, for gathering present engine rotating speed electric signal and vehicle
Signal of change goes out target oil spout value, the injection advance angle value of target, the expectation state signal value of the enterprising solenoid of injection pump
With engine rotational speed signal value, and the aforementioned four signal value calculated is transferred to the second control module；
The fuel temperature sensor is arranged on injection pump, for detecting the fuel oil temperature signal value on injection pump；
The oil mass slip ring position sensor, oil mass slip ring position feed back signal is obtained for detecting, and by the oil mass slip ring
Position feed back signal feeds back to the second control module；
The timing stroke sensor, the timing travel feedback signal of injection advance Angle Position is obtained for detecting, and by described in
Timing travel feedback signal feeds back to the second control module；
Second control module is arranged on injection pump, receives engine rotational speed signal value, mesh that the first control module transmits
Mark oil spout value and the temperature signal with reference to the fuel temperature sensor calculate the oil mass slip ring position of target, then will be upper
Target oil mass slip ring position obtained by stating together, calculates suitable driving with reference to the oil mass slip ring position feed back signal
Electric current, the fuel-flow control module on injection pump is then driven, fuel-flow control module is reached the oil mass slip ring position of target；
After the injection advance angle value for receiving the target of the first control module collection, with reference to the reception timing travel feedback signal meter
Suitable driving current is calculated, driving timing magnetic valve makes injection advance angle reach target location；
Drive injection pump enterprising after receiving the expectation state signal value of the enterprising solenoid of injection pump of the first control module collection
Solenoid opens or closes.
First control module is ECU, the second control module is PCU, is entered between the ECU and PCU by CAN
Row communication；PCU is directly placed in the fuel-flow control module of injection pump, and with the oil mass position feedback sense of fuel-flow control module
Device and temperature sensor are integrated in one, are cooled down by the fuel oil in injection pump.
Covered with three proofings gel coating outside the PCU.
The beneficial effects of the invention are as follows：
The present invention has following advantage relative to existing position model electronic control dispensing pump：
Firstth, due to intelligent object（PCU）On injection pump, and contain memory in intelligent object, so each spray
Oil pump can have oneself personalized oil mass, injection advance angular data to be read on the pump for ECU.So as to solve pump oil
Amount, advance angle consistency problem.
Secondth, because intelligent object is on injection pump, it directly can be joined directly together with the electric component on pump, with ECU
Between circuit there was only power supply and connection, greatly reduce the probability of failure on wire harness, improve the reliability of system.
Brief description of the drawings
Fig. 1 is present system functional block diagram；
Fig. 2 is the oil mass realizing route figure of the present invention；
Fig. 3 is present system control program schematic diagram；
Fig. 4 is that distributive value adjusts procedure chart；
Fig. 5 is that injection advance angle adjusts procedure chart.
Embodiment
With reference to Figure of description and specific embodiment to a kind of control for position model electronic control dispensing pump of the invention
The technical scheme of system processed is described in further detail.
As described in Figure 1,
As shown in figure 1, the invention discloses a kind of control method for position model electronic control dispensing pump:The control of oil spout pumping system
System is stripped out from ECU, as independent control module（PCU）It is fixedly arranged on injection pump.I.e.:Sensor on injection pump and
Actuator is directly connected with PCU, and PCU passes through bus communication with original ECU again.
Every when pumping out factory, the basic oil mass MAP of oil mass, rotating speed, fuel oil temperature and oil spout magnitude relation is solidificated in PCU
As its special oil mass basis MAP.Because carrying memory on PCU, so each injection pump has a special oil mass
Basic MAP (i.e. distributive value Q, rotating speed SP, fuel oil temperature T and oil mass slip ring position S relation table) can have the PCU on pump
On.In this case, the realizing route of system distributive value is as shown in Figure 2.
Concrete technical scheme is：
As shown in Fig. 3 ~ Fig. 5, a kind of control method for position model electronic control dispensing pump, this method is based on setting two independent controls
Molding block, the first control module being provided in respectively on engine and the second control module being arranged on injection pump, including
Following steps：
Step S1, described first control module collection present engine rotating speed electric signal and vehicle signal of change go out target
Oil spout value, the injection advance angle value of target, the expectation state signal value of the enterprising solenoid of injection pump and engine speed letter
Number value, and is transferred to the second control module by the aforementioned four signal value calculated；
Step S2, the aforementioned four signal value that the second control module transmits according to the first control module carries out following three actions,
It is respectively：
Distributive value is adjusted：Engine rotational speed signal value that second control module transmits according to the first control module, target distributive value
Value and combination calculate the oil mass slip ring position of target received from the temperature signal that fuel temperature sensor on injection pump gathers
Put, then by the target oil mass slip ring position of above-mentioned gained and received from the oil mass slip ring position sensor signal one on injection pump
Rise, calculate suitable driving current, drive the oil regulator on injection pump, oil regulator is reached the oil of target
Measure slip ring position；
Injection advance angle is adjusted：The target injection advance angle signal that second control module transmits according to the first control module, with reference to
Received from the timing stroke sensor signal on injection pump, suitable driving current is calculated, driving timing magnetic valve makes
Injection advance angle reaches target location；
Oil-feed solenoid valve control：The enterprising solenoid of injection pump that the reception of second control module is transmitted from the first control module
The enterprising solenoid of injection pump is driven to open or close after expectation state signal value.
Further, the preferred scheme as the inventive method, in step S1, the vehicle signal includes：Gas pedal
Signal, admission pressure temperature signal, ECT signal, GES, key switch signal and brake switch letter
Number.
Further, the preferred scheme as the inventive method, in step S2, when driving the oil regulator on injection pump
Using pid control algorithm.
Further, the preferred scheme as the inventive method, in step S2, driving timing magnetic valve adopted during oil spout
Use pid control algorithm.
The invention also discloses a kind of control system for position model electronic control dispensing pump, including engine, injection pump,
One control module, the second control module, fuel temperature sensor, fuel-flow control module, timing magnetic valve, enter solenoid, oil
Slip ring position sensor and timing stroke sensor are measured, wherein,
The first control module bag is set on the engine, for gathering present engine rotating speed electric signal and vehicle
Signal of change goes out target oil spout value, the injection advance angle value of target, the expectation state signal value of the enterprising solenoid of injection pump
With engine rotational speed signal value, and the aforementioned four signal value calculated is transferred to the second control module；
The fuel temperature sensor is arranged on injection pump, for detecting the fuel oil temperature signal value on injection pump；
The oil mass slip ring position sensor, oil mass slip ring position feed back signal is obtained for detecting, and by the oil mass slip ring
Position feed back signal feeds back to the second control module；
The timing stroke sensor, the timing travel feedback signal of injection advance Angle Position is obtained for detecting, and by described in
Timing travel feedback signal feeds back to the second control module；
Second control module is arranged on injection pump, receives engine rotational speed signal value, mesh that the first control module transmits
Mark oil spout value and the temperature signal with reference to the fuel temperature sensor calculate the oil mass slip ring position of target, then will be upper
Target oil mass slip ring position obtained by stating together, calculates suitable driving with reference to the oil mass slip ring position feed back signal
Electric current, the fuel-flow control module on injection pump is then driven, fuel-flow control module is reached the oil mass slip ring position of target；
After the injection advance angle value for receiving the target of the first control module collection, with reference to the reception timing travel feedback signal meter
Suitable driving current is calculated, driving timing magnetic valve makes injection advance angle reach target location；
Drive injection pump enterprising after receiving the expectation state signal value of the enterprising solenoid of injection pump of the first control module collection
Solenoid opens or closes.
Further, the preferred scheme as present system, first control module are ECU, the second control module
For PCU, communicated between the ECU and PCU by CAN；PCU is directly placed at the fuel-flow control module of injection pump
In, and one is integrated in the oil mass position feedback transducer and temperature sensor of fuel-flow control module, by injection pump
Fuel oil is cooled down.
Further, the preferred scheme as present system, in order that PCU can be immersed in oil, it is necessary to using three
Anti- glue covers to chip surface, prevents electronic component from being corroded by diesel oil, aqueous mixtures.
Separately for the reliability and convenience of strengthening system, PCU and sensor on pump, actuator rat tail are tried one's best
It is short, and connected using independent connector；PCU and ECU interface, connected using extra connector.
Troubleshooting and fault message feedback on injection pump：
Sensor, actuator failures on injection pump are divided into two-stage according to hazard rating, and one kind is catastrophe failure, will cause to start
Machine driving；Another kind is conventional fault.When there is conventional fault in the sensor on pump or actuator, failures of the PCU correlation
Information feeds back to ECU in time in the form of DTC by bus.When there is catastrophe failure, PCU will directly control close into
Solenoid and fault message is sent simultaneously to ECU.
Claims (7)
1. a kind of control method for position model electronic control dispensing pump, this method is based on setting two individual control modules, respectively
The first control module being provided on engine and the second control module being arranged on injection pump, it is characterised in that including
Following steps：
Step S1, described first control module collection present engine rotating speed electric signal and vehicle signal of change go out target
Oil spout value, the injection advance angle value of target, the expectation state signal value of the enterprising solenoid of injection pump and engine speed letter
Calculate four signal values and are transferred to the second control module by number value；
Step S2, the aforementioned four signal value that the second control module transmits according to the first control module carries out following three actions,
It is respectively：
Distributive value is adjusted：Engine rotational speed signal value that second control module transmits according to the first control module, target distributive value
Value and combination calculate the oil mass slip ring position of target received from the temperature signal that fuel temperature sensor on injection pump gathers
Put, then by the target oil mass slip ring position of above-mentioned gained and received from the oil mass slip ring position sensor signal one on injection pump
Rise, calculate suitable driving current, drive the oil regulator on injection pump, oil regulator is reached the oil of target
Measure slip ring position；
Injection advance angle is adjusted：The target injection advance angle signal that second control module transmits according to the first control module, with reference to
Received from the timing stroke sensor signal on injection pump, suitable driving current is calculated, driving timing magnetic valve makes
Injection advance angle reaches target location；
Oil-feed solenoid valve control：The enterprising solenoid of injection pump that the reception of second control module is transmitted from the first control module
The enterprising solenoid of injection pump is driven to open or close after expectation state signal value.
2. the control method according to claim 1 for position model electronic control dispensing pump, it is characterised in that in step S1,
The vehicle signal includes：Accelerator pedal signal, admission pressure temperature signal, ECT signal, GES,
Key switch signal and brake switch signal.
3. the control method according to claim 1 for position model electronic control dispensing pump, it is characterised in that in step S2,
Pid control algorithm is used when driving the oil regulator on injection pump.
4. the control method according to claim 1 for position model electronic control dispensing pump, it is characterised in that in step S2,
Driving timing magnetic valve carries out using pid control algorithm during oil spout.
5. a kind of control system for position model electronic control dispensing pump, it is characterised in that including engine, injection pump, the first control
Molding block, the second control module, fuel temperature sensor, fuel-flow control module, timing magnetic valve, enter solenoid, oil mass slide
Ring position sensor and timing stroke sensor, wherein,
The first control module bag is set on the engine, for gathering present engine rotating speed electric signal and vehicle
Signal of change goes out target oil spout value, the injection advance angle value of target, the expectation state signal value of the enterprising solenoid of injection pump
With engine rotational speed signal value, and the aforementioned four signal value calculated is transferred to the second control module；
The fuel temperature sensor is arranged on injection pump, for detecting the fuel oil temperature signal value on injection pump；
The oil mass slip ring position sensor, oil mass slip ring position feed back signal is obtained for detecting, and by the oil mass slip ring
Position feed back signal feeds back to the second control module；
The timing stroke sensor, the timing travel feedback signal of injection advance Angle Position is obtained for detecting, and by described in
Timing travel feedback signal feeds back to the second control module；
Second control module is arranged on injection pump, receives engine rotational speed signal value, mesh that the first control module transmits
Mark oil spout value and the temperature signal with reference to the fuel temperature sensor calculate the oil mass slip ring position of target, then will be upper
Target oil mass slip ring position obtained by stating together, calculates suitable driving with reference to the oil mass slip ring position feed back signal
Electric current, the fuel-flow control module on injection pump is then driven, fuel-flow control module is reached the oil mass slip ring position of target；
After the injection advance angle value for receiving the target of the first control module collection, with reference to the reception timing travel feedback signal meter
Suitable driving current is calculated, driving timing magnetic valve makes injection advance angle reach target location；
Drive injection pump enterprising after receiving the expectation state signal value of the enterprising solenoid of injection pump of the first control module collection
Solenoid opens or closes.
6. the control system according to claim 5 for position model electronic control dispensing pump, it is characterised in that first control
Molding block is ECU, the second control module is PCU, is communicated between the ECU and PCU by CAN；PCU is directly placed
Integrated in the fuel-flow control module of injection pump, and with the oil mass position feedback transducer and temperature sensor of fuel-flow control module
In one, cooled down by the fuel oil in injection pump.
7. the control system according to claim 6 for position model electronic control dispensing pump, it is characterised in that outside the PCU
Portion is covered with three proofings gel coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710841982.0A CN107420211B (en) | 2017-09-18 | 2017-09-18 | Control method and system for position type electric control distribution pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710841982.0A CN107420211B (en) | 2017-09-18 | 2017-09-18 | Control method and system for position type electric control distribution pump |
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| CN107420211A true CN107420211A (en) | 2017-12-01 |
| CN107420211B CN107420211B (en) | 2023-03-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114900392A (en) * | 2022-05-16 | 2022-08-12 | 株洲嘉成科技发展股份有限公司 | Method for transmitting serial port data by CAN bus |
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| CN205089462U (en) * | 2015-11-05 | 2016-03-16 | 江西直方数控动力有限公司 | Diesel engine oil measures control system based on automatically controlled monoblock pump |
| CN206429311U (en) * | 2016-12-02 | 2017-08-22 | 斯太尔动力（常州）发动机有限公司 | Unit injector diesel engine fuel-firing electric control gear |
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| JPH08177587A (en) * | 1994-12-21 | 1996-07-09 | Nippondenso Co Ltd | Fuel injection control device for diesel engine |
| EP0737807A2 (en) * | 1995-04-12 | 1996-10-16 | Toyota Jidosha Kabushiki Kaisha | Electronically controlled fuel injection system for a diesel engine |
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| CN114900392A (en) * | 2022-05-16 | 2022-08-12 | 株洲嘉成科技发展股份有限公司 | Method for transmitting serial port data by CAN bus |
| CN114900392B (en) * | 2022-05-16 | 2023-07-25 | 株洲嘉成科技发展股份有限公司 | Method for transmitting serial port data by CAN bus |
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| CN107420211B (en) | 2023-03-28 |
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