CN201363200Y - Electronic control unit of universal type engine - Google Patents
Electronic control unit of universal type engine Download PDFInfo
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- CN201363200Y CN201363200Y CNU2009200636562U CN200920063656U CN201363200Y CN 201363200 Y CN201363200 Y CN 201363200Y CN U2009200636562 U CNU2009200636562 U CN U2009200636562U CN 200920063656 U CN200920063656 U CN 200920063656U CN 201363200 Y CN201363200 Y CN 201363200Y
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Abstract
The utility model relates to an electronic control unit of a universal type engine. An output end of a power supply module of the electronic control unit is respectively connected with input ends of an analogue value output module, a minimal system module of a microcontroller and an adjustable high voltage control and generation module; the output ends of a pulse value input module, an analogue value input module and a switching value input module are respectively connected with the input end of the minimal system module of the microcontroller; the output end of the minimal system module of the microcontroller is respectively connected with the input ends of the adjustable high voltage control and generation module, a switching value time sequence output module, a pulse-width modulation output module and a switching value output module; the output end of the adjustable high voltage control and generation module is respectively connected with the input ends of the switching value time sequence output module and the pulse-width modulation output module; and a communication module is two-way connected with the minimal system module of the microcontroller. The use of the electronic control unit can realize the control of different types of internal combustion engines.
Description
Technical field
The utility model relates to a kind of general-purpose type engine electronic control unit (Universal Electrolic ControlUnit, be called for short " UECU "), especially relate to a kind of electronic control unit that is applicable to internal-combustion engines such as petrol engine, diesel engine and rotary engine.
Background technique
Now, motor generally adopts electronic control system to manage, to satisfy use and environmental protection " efficiently, low consumption, low emission " requirement to the increasingly stringent of motor proposition.The core of electronic engine management system is engine electronic control unit (being called for short " ECU "), it carries out comprehensive analysis and calculating to the information that various kinds of sensors on the motor provides, work according to the optimized control strategy actuate actuators, make motor keep optimal operational condition, to satisfy the usage requirement under the various operating modes.
To a certain class motor control, demarcation and adjustment, just must make amendment to code among the ECU and data.The control program of commercial engines is solidificated among the FLASH of ECU in the mode of encryption, and the user can not change it.By changing central processing element and pin-saving chip, perhaps between ECU and sensor and actor, add blocker and can only reach the purpose of part adjustment, and this method has very strong selectivity with the method for deception ECU.If will control easily, demarcation and adjustment, just the ECU hardware and one that must adopt a special use puts and descends a year embedded program, can carry out the software systems that data capture and control strategy dispose.
Daily scientific research and maintenance work relate to common petrol engine, diesel engine and rotary engine, and each motor all needs to use different control and adjustment instrument, need very high cost.
The model utility content
The purpose of this utility model is to provide a kind of general-purpose type engine electronic control unit (UECU) that is applicable to internal-combustion engines such as various petrol engine, diesel engine and rotary engine.
The technical solution of the utility model is: it is by power module, the pulsed quantity load module, the analog amount load module, switching input module, the microcontroller minimum systematic module, adjustable high voltage control and generation module, switching value sequential output module, the pulsewidth modulation output module, switching value output module and communication module constitute, the output terminal of described power module respectively with the analog amount load module, the input end of microcontroller minimum systematic module and adjustable high voltage control and generation module is connected, the pulsed quantity load module, the output terminal of analog amount load module and switching input module is connected with the input end of microcontroller minimum systematic module respectively, the output terminal of microcontroller minimum systematic module respectively with adjustable high voltage control and generation module, switching value sequential output module, the pulsewidth modulation output module is connected with the input end of switching value output module, the output terminal of adjustable high voltage control and generation module is connected with the input end of switching value sequential output module and pulsewidth modulation output module respectively, and communication module is connected with the microcontroller minimum systematic module is two-way.
Described electric power source pair of module battery tension detects, and overcurrent protection; In addition, battery tension is converted into the operating voltage of various kinds of sensors on each chip of UECU and the motor; Pulsed quantity load module, analog amount load module, switching input module convert various types of signal on the motor to standard signal and send the microcontroller minimum systematic module to, by of the setting of microcontroller minimum systematic module, control adjustable high voltage control and generation module, switching value sequential output module, pulsewidth modulation output module, the work of switching value output module according to program; Wherein, control adjustable high voltage control and generation module the high-power high voltage power supply that drives oil nozzle is provided for switching value sequential output module; Communication module provides the passage that carries out data interaction with upper-position unit for UECU.
The user can use power operation software systems configuration control program on PC, by special-purpose communication interface program is downloaded among the FLASH of microcontroller in the UECU.UECU gathers the signal of each sensor output on the motor, according to the control strategy actuate actuators work of program setting; During UECU work, carry out data interaction by the power operation software systems of special-purpose communication interface and PC, the user can monitor in real time to the data stream of UECU internal operation, and characteristic parameter is carried out real time modifying.
Use the utility model, can realize control dissimilar internal-combustion engines.Compare with existing ECU (Electrical Control Unit), its advantage is: the utility model belongs to Open architecture, and sensor that all kinds of electronic engine management systems are adopted and actuation technologies form a plurality of general modules according to property sort, are applicable to the polytype motor; Because the universal design of hardware can be by the online easily adjustment engine parameter of software configuration; Can be used for overall test, demarcation and the adjustment of motor, also can be used for the test of subtense angles such as engine combustion ejecting system, air inlet system and exhaust system and automatically controlled component.
Description of drawings
Fig. 1 is the utility model one embodiment's a structured flowchart;
Fig. 2 is adjustable high voltage control and a generation module structured flowchart embodiment illustrated in fig. 1;
Fig. 3 is a kind of circuit structure diagram of adjustable high voltage control shown in Figure 2 and generation module;
Fig. 4 is a kind of circuit structure diagram of switching value sequential output module embodiment illustrated in fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
With reference to Fig. 1, present embodiment is by power module 1, pulsed quantity load module 2, analog amount load module 3, switching input module 4, microcontroller minimum systematic module 5, adjustable high voltage control and generation module 6, switching value sequential output module 7, pulsewidth modulation output module 8, switching value output module 9 and communication module 10 constitute, the output terminal of power module 1 respectively with analog amount load module 3, the input end of microcontroller minimum systematic module 5 and adjustable high voltage control and generation module 6 is connected, pulsed quantity load module 2, the output terminal of analog amount load module 3 and switching input module 4 is connected with the input end of microcontroller minimum systematic module 5 respectively, the output terminal of microcontroller minimum systematic module 5 respectively with adjustable high voltage control and generation module 6, switching value sequential output module 7, pulsewidth modulation output module 8 is connected with the input end of switching value output module 9, the output terminal of adjustable high voltage control and generation module 6 is connected with the input end of switching value sequential output module 7 and pulsewidth modulation output module 8 respectively, communication module 10 and 5 two-way connections of microcontroller minimum systematic module.
Pulsed quantity load module 2 mainly is the pulsed quantity sensor setting at detection of engine rotating speed position, the 5V square signal that sine wave that can all kinds of magnetoelectrics or hall sensor be produced by the hysteresis comparator circuit that is made of voltage comparator or square signal convert standard to.
Analog amount load module 3 is at various dissimilar sensors on the motor, as all kinds of pressure transducers, temperature transducer, current sensor and position transducer etc., be provided with pressure signal acquisition zone, temperature signal collection district, current signal acquisition zone and position signal acquisition district.Analog amount load module 3 carries out analog-to-digital conversion with the voltage signal input microcontroller minimum systematic module 5 that each signal of sensor on the motor is converted to 0-3.3V.
Switching input module 4 adopts optical coupling isolation circuit to dispose 12 switch value input interface.
Microcontroller minimum systematic module 5 is nucleus modules of the present utility model.This module comprises microcontroller and data storage.The microcontroller of present embodiment adopts 32 the ARM chips LPC2292 of Philips company, and the outside eeprom memory of it and reset circuit, crystal oscillation circuit and a storage characteristics parameter constitutes present embodiment microcontroller minimum systematic module 5 jointly.The program of FLASH memory stores UECU in the microcontroller, all kinds of special parameters of eeprom memory storage motor comprise MAP diagram data and various Control Parameter.The major function of microcontroller minimum systematic module is that the sensor signal that collects is gathered, all kinds of input information are carried out integrated treatment and calculating, control strategy and feature Control Parameter output order according to program setting are given various drive control modules, realize that UECU is to the control under the various operating modes of motor.
Adjustable high voltage control and generation module 6 provide two-way to be exported by the high-power high voltage that software is adjusted, to adapt to the driving of various dissimilar oil nozzles.Below with wherein one the tunnel consist of example, introduce the structure of adjustable high voltage control and generation module 6.With reference to Fig. 2, it comprises with voltage stabilizing chip U10 being the EDM Generator of Adjustable Duty Ratio PWM generative circuit 601 of core, with driving chip U3 is the field effect transistor drive circuit 602 of core, DC-DC change-over circuit 603, with voltage comparator U9A is the DC-DC mode switching circuit 604 of core, is the program control feeder loop 605 of core with digital regulation resistance U6; EDM Generator of Adjustable Duty Ratio PWM generative circuit 601 output terminals are connected with the input end of field effect transistor drive circuit 602, the output terminal of field effect transistor drive circuit 602 is connected with the input end of DC-DC change-over circuit 603, the output terminal of DC-DC change-over circuit 603 is connected with the input end of DC-DC mode switching circuit 604 and the input end of program control feeder loop 605 respectively, the output terminal of DC-DC mode switching circuit 604 is connected with the input end of field effect transistor drive circuit 602, and the output terminal of program control feeder loop 605 is connected with the input end of EDM Generator of Adjustable Duty Ratio PWM generative circuit 601; Described voltage stabilizing chip U10 is the LM2578 chip, and driving chip U3 is the IR2101 chip, and digital regulation resistance U6 is the X9C103 chip.
With reference to Fig. 3, No. 1 pin of voltage stabilizing chip U10 LM2578 is connected to No. 3 pins of digital regulation resistance U6 X9C103 by resistance R 27, also links to each other with No. 3 pins of voltage stabilizing chip U10 LM2578 self by capacitor C 9, capacitor C 10, resistance R 43 and the parallel circuit that connects; No. 2 pins of voltage stabilizing chip U10 LM2578 link to each other with the collector electrode of transistor T 3 by resistance R 37, also link to each other with ground by capacitor C 8; Input control signal L links to each other with the base stage of transistor T 3 by resistance R 13, also link to each other with the power supply of 3.3V by resistance R 12, the emitter of transistor T 3 links to each other with ground, No. 3 pins of voltage stabilizing chip U10 LM2578 link to each other with ground by capacitor C 11, No. 4 pin ground connection of voltage stabilizing chip U10 LM2578, No. 5 pins of voltage stabilizing chip U10 LM2578 link to each other with No. 2 pins of driving chip U3 IR210, also link to each other with the output terminal of voltage comparator U9A by resistance R 47, No. 6 pins of voltage stabilizing chip U10 LM2578 connect the 12V power supply, No. 7 pins of voltage stabilizing chip U10LM2578 are connected to the two ends of resistance R 32 by resistance R 2 and R52, and No. 8 pins of voltage stabilizing chip U10 LM2578 connect the 12V power supply.
No. 1 pin of driving chip U3 IR210 connects the 12V power supply, No. 3 pins connect the output terminal of voltage comparator U9A, No. 4 pin ground connection, No. 5 pins connect the grid of field effect transistor Q3 by resistance R 4, No. 6 pin links to each other with No. 8 pins of self by electric capacity E4, also the upper end with inductance L 2 links to each other, and No. 8 pin links to each other with the 12V power supply by diode D11.
The drain electrode of field effect transistor Q4 links to each other with battery feed by resistance R 32, source electrode links to each other with the drain electrode of field effect transistor Q3 by inductance L 2, also link to each other with ground by diode D5, the drain electrode of field effect transistor Q3 links to each other with the electric capacity E8 of parallel connection and the positive pole of E9 by diode D6, and source electrode links to each other with ground.The negative pole of electric capacity E8 and E9 links to each other with ground, anodal output voltage D.
No. 1, No. 2, No. 7 pins of digital regulation resistance U6X9C103 link to each other with input signal X2, X3, X1 respectively, No. 3 pin links to each other with the positive pole of electric capacity E8 and E9 by resistance R 34, also link to each other with No. 5 pins of self, No. 4 pin ground connection, No. 6 pins are by resistance R 26 ground connection, and No. 8 pin connects the 5V power supply.
The in-phase input end of voltage comparator U9A links to each other with electric capacity E8 and E9 are anodal with R45 by series resistors R14, also link to each other with the output terminal of self by resistance R 42, the inverting input of voltage comparator U9A links to each other with battery feed by resistance R 44, also links to each other with ground with capacitor C 6 by parallel resistor R46.
If the voltage D of output is greater than storage battery power supply voltage, the output open circuit of U9A then, field effect transistor Q3 and Q4, inductance L 2, diode D5 and D6, storage capacitor E8 and E9 work simultaneously; Field effect transistor Q3 and Q4 are controlled by the pwm signal of voltage stabilizing chip U10LM2578 output, conducting simultaneously and closing.When pwm signal is high level, field effect transistor Q3 and Q4 conducting, diode D5 is in cut-off state, and storage battery is to inductance L 2 chargings, and electrical power storage is in inductance L 2; When pwm signal was low level, field effect transistor Q1 and Q2 ended, diode D5, D6 conducting, 2 pairs of electric capacity E7, E8 chargings of inductance L.Circuit parameter design makes when voltage stabilizing chip U10 LM2578 output PWM frequency, inductance L 2 inductance value, storage capacitor E8, E9 capacitance are in one group of fixing value, the size of the voltage D of storage capacitor E7, E8 output depends on the ON time of field effect transistor Q1 and Q2 and the ratio of shut-in time, promptly change the dutycycle of pwm signal, just can change the size of output voltage.If the voltage D of output is less than storage battery power supply voltage, the output ground connection of U9A then, field effect transistor Q3 is in closed condition.Field effect transistor Q4, inductance L 2, field effect transistor D5, field effect transistor D6, storage capacitor E8, storage capacitor E9 form buck circuit.The same with last a kind of situation, the dutycycle that changes pwm signal also can change the size of output voltage D.
Output voltage is through being that the program control feeder loop of core feeds back to the reverse input end of voltage stabilizing chip U10LM2578 and the reference potential of inner 1V compares with digital regulation resistance U6 X9C103.According to voltage difference, voltage stabilizing chip U10LM2578 internal control circuit changes the dutycycle of output pwm signal automatically, thereby changes output voltage D, and the feasible voltage that feeds back to the input end of voltage stabilizing chip U10LM2578 becomes 1V rapidly.Therefore, the corresponding different output voltage D of different feeder loop.Digital regulation resistance U6X9C103 is the non-volatile linear digital potentiometer of 100 rank 1K, and the position of sliding end can be stored in the nonvolatile memory, thereby can be called again when working on power next time.With software control controller chip I/O output, can change resistance, thereby obtain required feedback voltage for X1, X2, X3 input assembled pulse signal.Suppose that it is a * 10 Ω (1≤a≤100) that digital regulation resistance U6X9C103 resistance is set up, resistance R 34 is b Ω, and resistance R 26 is 1K, and output voltage D is cV, and relation: c=1+b (100+a)/1000a is then arranged.
When being set in certain fixing output voltage D, because compensating load or mains voltage variations, voltage stabilizing chip U10 LM2578 can regulate the output of dutycycle burning voltage automatically.
The circuit that electric capacity E6 and E7 and diode D2 and D3 form is superimposed with battery tension with the high pressure of output, for the high-end control of bridge circuit in the switching value sequential output module 7 field effect transistor provide to suspend and drive.
Switching value sequential output module 7 is at designed control and the drive circuit of various oil sprayer sequential class switching values output, is that example is illustrated below with reference to Fig. 3 with the control and the drive circuit of an oil sprayer.This circuit comprises the two-staged transistor amplification circuit of being made up of triode T1 and T4, by the switching circuit of field effect transistor driving chip U2, field effect transistor Q1, Q2, is the amplification circuit of core with amplifier U4A, is the comparison circuit of core with amplifier U7A.H, I, J import the control end of this module for microcontroller I/O.D, E are adjustable high voltage control and generation module input end, according to the control mode of different oil sprayers, can come the setting voltage size by adjustable high voltage control and generation module.F is the suspension driving voltage of electric capacity E6 output in adjustable high voltage control and the generation module 6, uses for driving field effect transistor Q1.M, N connect two inputs of oil sprayer coil.Field effect transistor Q2 controls the high-end of oil sprayer half-bridge driven loop, public one of all oil sprayers; The low side in field effect transistor Q1 control oil nozzle half-bridge driven loop, each oil nozzle disposes one separately.
Ternary port driver chip U1 is used for improving the driving force from microcontroller I/O output signal I, J.The two-staged transistor amplification circuit that I signal control is made up of T1 and T4 drives the field effect transistor Q2 of high-end control.The J signal drives the field effect transistor Q1 of low side control by field effect transistor driving chip U2; When field effect pipe Q2 conducting, from D input high pressure opening oil sprayer rapidly, in case after oil sprayer opened, field effect transistor Q2 closed, and just only need keep the opening state of oil sprayer from the low voltage of E input; The effect of diode D4 is the input of isolating D passage and E passage.When driving oil sprayer, current sense resistor R33 acquisition circuit current signal through being that the amplification circuit of core is converted to signal K with amplifier U4A, is delivered in the microcontroller minimum systematic module 5 and is gathered, with real-time monitoring loop electric current, for the control of oil sprayer provides feedback signal.On the other hand, to send into amplifier U7A be the comparison circuit of core to signal K; When loop current is too high, can export the control end of high level to U1, cut off the control signal of I, J, close field effect transistor Q1, Q2, the protection loop.In addition, the H signal also can be controlled the output of amplifier U7A, thus the working state of indirect control module.
The a plurality of pwm power modulation port of switching value output module 9 configuration, the burning voltage that adopts module 6 to provide can be used for controlling the final controlling element of all kinds of positioning control.Need as most of final controlling element on the motor to carry out positioning control, and this class final controlling element adopts solenoid valve or step motor drive more, as idle speed control commonly used on the petrol engine, the pressure control of common rail system on the diesel engine, EGR control, in cold control etc.The independent use of each port can be carried out the PWM pulsewidth modulation; Several port combination are used and can be controlled and drive stepper motor.
Communication module 10 is the module that UECU control chip and special-purpose communication interface carry out communication, adopts the communication of CAN bus protocol.
1 pair of battery tension of power module detects, and overcurrent protection; In addition, battery tension is converted into the operating voltage of each chip of UECU and sensor; Pulsed quantity load module 2, analog amount load module 3, switching input module 4 convert various types of signal on the motor to standard signal and send microcontroller minimum systematic module 5 to, by the setting of microcontroller minimum systematic module 5, control adjustable high voltage control and generation module 6, switching value sequential output module 7, pulsewidth modulation output module 8,9 work of switching value output module according to program; Wherein, control adjustable high voltage control and generation module 6 the high-power high voltage power supply that drives oil nozzle is provided for switching value sequential output module 7.Communication module 10 provides the passage that carries out data interaction with upper-position unit for UECU.
The user can use the system of function software to come configuration control program on PC, carry out data interaction by the power operation software systems on special-purpose communication interface and the PC, can monitor in real time the data stream of UECU internal operation, characteristic parameter is carried out real time modifying.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the condition that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1, a kind of general-purpose type engine electronic control unit, it is characterized in that, by power module (1), pulsed quantity load module (2), analog amount load module (3), switching input module (4), microcontroller minimum systematic module (5), adjustable high voltage control and generation module (6), switching value sequential output module (7), pulsewidth modulation output module (8), switching value output module (9) and communication module (10) constitute, the output terminal of power module (1) respectively with analog amount load module (3), microcontroller minimum systematic module (5) and adjustable high voltage control are connected with the input end of generation module (6), pulsed quantity load module (2), the output terminal of analog amount load module (3) and switching input module (4) is connected with the input end of microcontroller minimum systematic module (5) respectively, the output terminal of microcontroller minimum systematic module (5) respectively with adjustable high voltage control and generation module (6), switching value sequential output module (7), pulsewidth modulation output module (8) is connected with the input end of switching value output module (9), the output terminal of adjustable high voltage control and generation module (6) is connected with the input end of switching value sequential output module (7) with pulsewidth modulation output module (8) respectively, communication module (10) and two-way connection of microcontroller minimum systematic module (5).
2, general-purpose type engine electronic control unit as claimed in claim 1, it is characterized in that, described adjustable high voltage control and generation module (6) comprise with voltage stabilizing chip U10 being the EDM Generator of Adjustable Duty Ratio PWM generative circuit (601) of core, with driving chip U3 is the field effect transistor drive circuit (602) of core, DC-DC change-over circuit (603), with voltage comparator U9A is the DC-DC mode switching circuit (604) of core, is the program control feeder loop (605) of core with digital regulation resistance U6; EDM Generator of Adjustable Duty Ratio PWM generative circuit (601) output terminal is connected with the input end of field effect transistor drive circuit (602), the output terminal of field effect transistor drive circuit (602) is connected with the input end of DC-DC change-over circuit (603), the output terminal of DC-DC change-over circuit (603) is connected with the input end of DC-DC mode switching circuit (604) and the input end of program control feeder loop (605) respectively, the output terminal of DC-DC mode switching circuit (604) is connected with the input end of field effect transistor drive circuit (602), and the output terminal of program control feeder loop (605) is connected with the input end of EDM Generator of Adjustable Duty Ratio PWM generative circuit (601);
Described voltage stabilizing chip U10 is the LM2578 chip, and driving chip U3 is the IR2101 chip, and digital regulation resistance U6 is the X9C103 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200636562U CN201363200Y (en) | 2009-03-17 | 2009-03-17 | Electronic control unit of universal type engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200636562U CN201363200Y (en) | 2009-03-17 | 2009-03-17 | Electronic control unit of universal type engine |
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| CN201363200Y true CN201363200Y (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009200636562U Expired - Fee Related CN201363200Y (en) | 2009-03-17 | 2009-03-17 | Electronic control unit of universal type engine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520779A (en) * | 2011-11-21 | 2012-06-27 | 浪潮电子信息产业股份有限公司 | Method for dynamically regulating memory voltage to enhance system stability |
| CN109901508A (en) * | 2019-04-02 | 2019-06-18 | 北京天地玛珂电液控制***有限公司 | Programmable controller and hydraulic bracket control system |
| CN111169488A (en) * | 2019-12-30 | 2020-05-19 | 四川锐智电气科技有限公司 | General locomotive control system |
-
2009
- 2009-03-17 CN CNU2009200636562U patent/CN201363200Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520779A (en) * | 2011-11-21 | 2012-06-27 | 浪潮电子信息产业股份有限公司 | Method for dynamically regulating memory voltage to enhance system stability |
| CN109901508A (en) * | 2019-04-02 | 2019-06-18 | 北京天地玛珂电液控制***有限公司 | Programmable controller and hydraulic bracket control system |
| CN111169488A (en) * | 2019-12-30 | 2020-05-19 | 四川锐智电气科技有限公司 | General locomotive control system |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20130317 |