CN103204069A - Electromobile range extender and control method - Google Patents
Electromobile range extender and control method Download PDFInfo
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- CN103204069A CN103204069A CN2013101631868A CN201310163186A CN103204069A CN 103204069 A CN103204069 A CN 103204069A CN 2013101631868 A CN2013101631868 A CN 2013101631868A CN 201310163186 A CN201310163186 A CN 201310163186A CN 103204069 A CN103204069 A CN 103204069A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The invention discloses an electromobile range extender and a control method. The electromobile range extender consists of an engine, an engine ECU (Electronic Control Unit), an electronic throttle valve controller, a direct current starter, an engine speed sensor, an alternating current permanent magnet synchronous motor, a three-phase full-control rectifier, filter capacitors, voltage sampling resistors, a current sensor, a freewheeling diode and a three-phase full-control rectifying voltage regulation phase-shift trigger, wherein the engine is started by the starter and then drags the alternating current permanent magnet synchronous motor to generate electricity and output the three-phase alternating current voltage to the thyristor three-phase full-control rectifier; after the direct current pulsating voltage output by the rectifier is filtered by the two filter capacitors connected in series, the three-phase full-control rectifying voltage regulation phase-shift trigger acquires the output voltage and current of the range extender to obtain the output power, and adjusts a conduction angle according to the power to realize closed-loop control of the power; and the electronic throttle valve controller acquires the engine speed, adjusts the throttle valve opening, and realizes the closed-loop control of the engine speed. The electromobile range extender and the control method have the advantages of low cost and high control precision.
Description
Technical field
The present invention relates generally to a kind of electric vehicle engineering, refers in particular to a kind of electronlmobil distance increasing unit and control method thereof.
Background technology
Along with the exhaustion day by day of oil resources and people to the improving constantly of environmental requirement, electronlmobil is not owing to consume petroleum.Cleanliness without any pollution just progressively becomes the developing direction in world car market.But be subject to energy density, charging rate and the cost of battery, the price of electronlmobil will exceed much than ordinary internal combustion engine automobile, and continual mileage is also very limited, so customer's acceptance of electronlmobil is also very low, has limited the development of electronlmobil to a great extent.
In order to solve the continual mileage problem that is caused by battery technology, stroke-increasing electric automobile is as a kind of long continual mileage that can take into account daily motorized of travelling, zero emission requirement and long-range trip, and lower-cost vehicle just progressively becomes the focus that requires of each big automobile vendor and research institution.
The mechanism of existing stroke-increasing electric automobile mainly is made of distance increasing unit, electrokinetic cell and power drive system as shown in Figure 2.The capacity of electrokinetic cell can satisfy most daily travelled distance demands generally much smaller than the common electric automobile; Power drive system comprises main drive motor, main drive motor controller, and the main motor that drives has constituted the direct driving force source that vehicle travels; When capacity of cell dropped to certain value, distance increasing unit started, for vehicle provides extra power source.
Existing distance increasing unit generally comprises driving engine, ISG (Integrate Starter﹠amp; Generator automobile start generating all-in-one) motor, ISG electric machine controller, Engine ECU (Electronic Control Unit electronic control unit) and distance increasing unit control unit.Driving engine is the power resources of distance increasing unit, generally selects low power spark ignition engine for use; The ISG motor generally adopts three-phase permanent magnet synchronous motor, and this motor namely can work in electric motor mode, is responsible for the startup of driving engine, can work in generator mode again, is responsible for the generating of distance increasing unit; The ISG electric machine controller mainly is responsible for the control to the ISG motor, the ISG electric machine controller can work in inverter mode, be used for the startup that control ISG motor drags driving engine, can work in the rectification pattern again, for the rectification of the three-phase alternating voltage that the ISG motor is sent; The same with traditional Engine ECU, the Engine ECU of distance increasing unit is responsible for the collection of each sensor signal of engine interior and the calculating of fuel charge, point of ignition etc.; The distance increasing unit control unit is mainly used in receiving the entire car controller instruction, coordinates the work of Engine ECU and ISG electric machine controller.
Entire car controller sends the distance increasing unit actuation signal to the distance increasing unit control unit during distance increasing unit work, the distance increasing unit control unit sends enabled instruction to Engine ECU and ISG electric machine controller, Engine ECU is gathered the startup preparation that interior each sensor signal of driving engine is carried out driving engine, this moment, the ISG electric machine controller worked in inverter mode, the ISG machine operation is in electric motor mode, the ISG motor drags driving engine to certain rotating speed engine starting, behind the engine starting, the ISG electric machine controller works in the rectification pattern, the ISG machine operation is in generator mode, driving engine drags the ISG motor, the three-phase alternating voltage that the ISG motor sends is output dc voltage after the rectification of ISG electric machine controller and filtering processing, link to each other with the dc bus of car load, for car load provides extra electric energy.
There is following shortcoming in the traditional electric automobile distance increasing unit:
1, is different from the often switching between electric motor mode and generator mode of ISG motor in the hybrid vehicle, distance increasing unit generally drops to a certain degree back startup at the capacity of electric automobile power battery, can work in generator mode after the startup always, travel until this and to finish or the electrokinetic cell capacity reaches threshold limit value, except the moment that starts, has only seldom time service in electric motor mode.And for the startup of driving engine, need very high instantaneous torque and instantaneous power, and this means that the ISG electric machine controller must have sufficient VA (volt-ampere) capacity, the cost of ISG electric machine controller certainly will be very high so.The circuit structure of a common permagnetic synchronous motor controller as shown in Figure 3, the inverter circuit that it is made of six full-control type power switch pipes (igbt (IGBT) or metal semiconductor oxide field-effect transistor (MOSFET)), power switch tube drives circuit, microcontroller treatment circuit, two or three Hall current sensor, rotating speed/position detecting circuit and Switching Power Supply, demonstration, interface and communication circuits are formed.Circuits System is complicated, and the price of accurate rotating speed/position transduser and the large power all-controlled type power switch pipe of high VA capacity requirement and Hall current sensor is all very expensive, and this has increased integral vehicle cost greatly.
2, the structure of ISG motor controller controls system is namely pressed rotor flux linkage orientation space vector PWM (Pulse Width Modulation pulse width modulation) control system as shown in Figure 4.This control system is made up of rotating speed PI (Proportional Pntegral ratio-integration) regulating control, direct-axis current pi regulator, friendship shaft current pi regulator, two-phase rotating coordinate system-three phase static coordinate system transformation (2r/3s conversion), three phase static system of axes-two-phase rotating coordinate system conversion (3s/2r conversion), weak magnestat, space vector pulse duration modulation (SVPWM) implementation algorithm usually.Algorithm flow is complicated and relate to more floating point arithmetic, and real-time requires high, and the system debug complexity has very high development difficulty.
3, common stroke-increasing electric automobile adopts the permanent power control algorithm of distance increasing unit or power following control algorithm, during electronlmobil work, because the difference of road conditions, driving habit, and the factor of braking energy feedback, the power demand of car load changes greatly, the fluctuation of power demand can cause the fluctuation of DC bus-bar voltage, and common this scope range of the fluctuation of voltage is 0.7
U N ~ 1.0
U N ,
U N Rated voltage for dc bus.This has brought very big challenge for the constant power output of distance increasing unit.The rectification mechanism of ISG electric machine controller inside is the uncontrollable rectification of diode, and horsepower output is realized by adjusting braking torque, is a kind of method for indirectly controlling, and the speed of response of horsepower output is slow, precision is lower.
4, engine speed adopts open loop control, and the degree of cyclic irregularity of driving engine is bigger, causes driving engine can not remain on the efficient operation zone, has further caused the reduction of the fuel economy of car load.
Shortcoming such as higher in view of the cost of traditional electric automobile distance increasing unit, that development difficulty is big, fuel economy is relatively poor, a kind of cost of market in urgent need is low, simple in structure, the good electronlmobil distance increasing unit of control effect.
Summary of the invention
The invention provides that a kind of cost is low, simple in structure, control effect good electronlmobil distance increasing unit device and control method thereof, be used for solving that existing electronlmobil distance increasing unit cost height, development difficulty are big, the problem of control weak effect.
In order to address the above problem, the invention provides a kind of electronlmobil distance increasing unit, its structure comprises driving engine, Engine ECU, electronic throttle controller, dc starter, engine speed sensor, AC permanent magnet synchronous motor, three-phase fully-controlled rectifier, filter capacitor, voltage sample resistance, current sensor, flywheel diode and three-phase fully-controlled rectifying and pressure-regulating phase shift trigger, it is characterized in that: dc starter is connected with the 12V storage battery via contactless switch; Driving engine is connected with dc starter, driving engine EAC, electronic throttle controller, engine speed sensor, AC permanent magnet synchronous motor, and electronic throttle controller is connecting engine speed sensor; The side that exchanges of AC permanent magnet synchronous motor and three-phase fully-controlled rectifier links to each other; The three-phase fully-controlled rectifier is made of six thyristor, its DC side two ends and filter capacitor, voltage sample resistance, flywheel diode parallel connection; Filter capacitor is made of the chemical capacitor more than two; Voltage sample resistance is made of two above resistance; Three-phase fully-controlled rectifying and pressure-regulating phase shift trigger links to each other with voltage sample resistance, and links to each other with filter capacitor by current sensor.Above-mentioned driving engine is the miniwatt spark ignition engine of 10KW ~ 30KW.
Above-mentioned driving engine is the miniwatt spark ignition engine of 10KW ~ 30KW.
Above-mentioned AC permanent magnet synchronous motor is three phase electric machine;
Above-mentioned AC permanent magnet synchronous motor is connected with driving engine by belt, gear, perhaps is connected with driving engine is coaxial;
Above-mentioned current sensor is Hall current sensor.
Above-mentioned flywheel diode is high-capacity schottky diode;
Above-mentioned filter capacitor is made of the equal withstand voltage of two series connection, the chemical capacitor of equal capacity.
Above-mentioned voltage sample resistance is made of two resistance.
The present invention provides a kind of electronlmobil distance increasing unit constant-power control method simultaneously, it is characterized in that: adopt based on each described electronlmobil distance increasing unit structure among the claim 1-8 system's output voltage that the collection of three-phase fully-controlled rectifying and pressure-regulating phase shift trigger is obtained by the voltage sample electric resistance partial pressure and the system's outgoing current that is obtained by current sensor
I 1f, the output voltage of system and outgoing current
I 1fThe horsepower output of the system that obtains that multiplies each other
P f, this horsepower output
P fWith setting power
P *Difference as the input of power P I (ratio-integration) regulating control, power P I regulating control is output as the target outgoing current of system
, the current PI regulating control is according to system's outgoing current
I 1fWith the target outgoing current by the output of power P I regulating control
Between difference, adjust the conduction angle of phase-shift trigger circuit, constitute ring in the current control, realize the closed loop control of system power, and then constitute power control outer shroud that realize the power closed loop control of three-phase fully-controlled rectifier, namely distance increasing unit power is constant.
The present invention also provides a kind of electronlmobil distance increasing unit permanent method for controlling number of revolution, it is characterized in that, adopts based on each described electronlmobil distance increasing unit structure among the claim 1-8, is gathered the tach signal of engine speed sensor output by electronic throttle
, according to tach signal and by the horsepower output of distance increasing unit and the regional setting rotating speed that determines of efficient operation of driving engine
n *Difference, carry out rotating speed PI and regulate, the throttle opening expected value of rotating speed pi regulator output
W *With the actual aperture of throttle gate
W fDifference carry out aperture as the input of throttle opening pi regulator and regulate the throttle valve drive armature target current value of throttle opening pi regulator output
With actual current value
I 2fDifference as the input of current PI regulating control, the PWM(pulse width modulation of current PI regulating control output) duty cycle signals links to each other with the throttle valve drive motor through overdrive circuit, realize the adjusting of throttle opening, and then the realization engine speed is constant.
Concrete mode of operation is:
Engine ECU receives the actuation signal of being sent by entire car controller, electronic throttle controller is adjusted the aperture of throttle gate, by the dc starter that is connected with the 12V storage battery with engine starting, engine speed is stabilized in to be set before the rotating speed, and the conduction angle of three-phase fully-controlled rectifying and pressure-regulating phase shift trigger is 90 °.
When distance increasing unit starts, drag the engine starting distance increasing unit by the dc starter that connects the 12V storage battery;
Drag AC permanent magnet synchronous motor output three plase alternating current behind the engine starting and be pressed onto the three-phase fully-controlled rectifier;
The three-phase fully-controlled rectifier comprises six half control type thyristor, and six thyristor connect into three-phase fully-controlled type rectifying circuit.
The pulsating dc voltage of the output of three-phase fully-controlled rectifier carries out filtering through filter capacitor to be handled;
System's output voltage that the collection of three-phase fully-controlled rectifying and pressure-regulating phase shift trigger is obtained by two electric resistance partial pressures and the system's outgoing current that is collected by Hall current sensor, obtained the horsepower output of system by voltage and current, and adjust the conduction angle of binary pair according to horsepower output, realize the permanent power output of distance increasing unit;
Electronic throttle controller is gathered the tach signal of the tachogen output of driving engine, realizes the engine speed closed loop control.
Adopt the electronlmobil distance increasing unit of said structure, the constant constant rotational speed that determines in the efficient operation zone by the horsepower output of distance increasing unit and driving engine of its engine speed, the power output of distance increasing unit remains on the power points of setting.
The present invention has following beneficial effect:
Electronlmobil distance increasing unit device provided by the invention, driving engine is started by traditional 12V dc starter, avoided having effectively reduced the hardware cost of system by six igbts (IGBT) or metal semiconductor oxide field-effect transistor full-control type power devices such as (MOSFET) and two or three expensive ISG electric machine controllers that Hall current sensor, accurate rotating speed/position transduser constitute.
The three-phase fully-controlled rectification that the ac voltage signal of Thee-phase alternating current permanent-magnetic synchronous dynamo output constitutes via six thyristor, after the chemical capacitor filtering of two equal capacity and withstand voltage is handled, output dc voltage, three-phase fully-controlled rectifying and pressure-regulating phase shift trigger is gathered by the system power signal of Hall current sensor output with by two electric resistance partial pressure voltage signal processed, constituting current closed-loop PI respectively regulates and power P I closed loop adjustment, realize the constant power output of distance increasing unit by the conduction angle of controlling six thyristor, its power control accuracy is greatly improved than the power control accuracy of existing ISG electric machine controller.
By the closed loop adjustment of electronic throttle to engine speed, engine speed is constant when having realized the output of distance increasing unit perseverance power, constant its efficient region that remains on of driving engine has reduced the fuel efficiency reduction that the engine speed frequent fluctuation causes, and has improved the fuel economy of car load.
Description of drawings
Fig. 1 is electronlmobil distance increasing unit device scheme drawing provided by the invention;
Fig. 2 is that existing stroke-increasing electric automobile power system constitutes scheme drawing;
Fig. 3 is common ISG electric machine controller hardware configuration scheme drawing;
Fig. 4 be the ISG electric machine controller usually adopt by rotor flux linkage orientation vector control system scheme drawing;
Fig. 5 is the permanent power output control system of distance increasing unit provided by the invention scheme drawing;
Fig. 6 is engine revolution speed control system scheme drawing provided by the invention;
System voltage and current relationship scheme drawing when Fig. 7 is the output of distance increasing unit perseverance power.
The specific embodiment
Electronlmobil distance increasing unit provided by the invention and control method thereof such as Fig. 1, Fig. 5 and shown in Figure 6.
As shown in Figure 1, a kind of electronlmobil distance increasing unit, its hardware formation comprises driving engine, Engine ECU, electronic throttle controller, dc starter, engine speed sensor, AC permanent magnet synchronous motor, three-phase fully-controlled rectifier, filter capacitor, voltage sample resistance, current sensor, flywheel diode and three-phase fully-controlled rectifying and pressure-regulating phase shift trigger.
According to the difference of vehicle configuration, driving engine is generally the miniwatt spark ignition engine of 10KW ~ 30KW;
The ECU of Engine ECU and conventional truck is the same, sends startup command by entire car controller, and driving engine is responsible for signal such as ECU harvester oil pressure, water temperature, crank position and information such as fuel charge, point of ignition are calculated, and guarantees the normal operation of combustion engine;
Electronic throttle controller is responsible for the adjusting to throttle opening, and it receives the engine target rotating speed that entire car controller sends, and carries out engine speed PI according to the difference of practical engine speeds and rotating speed of target and regulate, and realizes the closed loop control of engine speed;
Dc starter is the same with the general automobiles starter, is connected with the 12V storage battery via contactless switch, and the control terminal of this contactless switch is by vehicle control unit controls, when entire car controller sends startup command, the contactless switch closure, starter is dragged to the startup rotating speed with driving engine, finishes engine starting;
AC permanent magnet synchronous motor is generally three phase electric machine, uses as electrical generator in electronlmobil distance increasing unit provided by the invention, is dragged by driving engine, generally is connected by belt, gear and driving engine, perhaps is connected with driving engine is coaxial;
The three-phase fully-controlled rectifier is made of six thyristor, exchanges side and connects the three-phase alternating voltage that AC permanent magnet synchronous motor is sent, and the DC side two ends link to each other with filter capacitor;
Filter capacitor is responsible for the dc pulse moving voltage of three-phase fully-controlled rectifier output is carried out the filtering processing.Filter capacitor adopts the equal withstand voltage of two series connection, the chemical capacitor of equal capacity to constitute, and takes cascaded structure can solve the problem of single the withstand voltage deficiency of electric capacity, the system short-circuit that also can avoid the chemical capacitor puncture short to cause simultaneously;
Voltage sample resistance is made of through dividing potential drop two resistance, and the magnitude of voltage that obtains after voltage division processing is generally 0 ~ 5V, therefore will be according to reasonably selecting divider resistance between the wave zone of system voltage;
Current sensor is Hall current sensor, and this sensor can be realized the isolation of Acquisition Circuit and power circuit, has advantage of high sampling precision simultaneously;
Flywheel diode is high-capacity schottky diode, has short advantage reverse recovery time, for the resistance sense load of system provides the counter-current passage;
Three-phase fully-controlled rectifying and pressure-regulating phase shift trigger provides trigging pulse for three phase controlled rectifier circuit, different with other phase shift triggers is, here it is by the collection to system's output voltage and electric current, adjust the conduction angle of trigging pulse, realize the power closed loop control of rectifying circuit, and then realize the permanent power output of distance increasing unit;
The given power of distance increasing unit is issued three-phase fully-controlled rectifying and pressure-regulating phase shift trigger by entire car controller according to integrated vehicle control tactics, and common control policy comprises permanent power policy and power following strategy.When permanent power policy is distance increasing unit work, its power keeps constant output, this magnitude of power is generally by the common a certain magnitude of power that determines in the efficient operation area of the working speed of distance increasing unit and driving engine, this value while outline is less than or equal to the specified charge power of electrokinetic cell, and when the vehicle braking energy feedback, this value will be according to suitable the reducing of the power of braking energy feedback, to avoid excessive damage or the lost of life that electrokinetic cell is caused of charge power; The power following strategy is the power pulses output that the horsepower output of distance increasing unit is being followed car load, adopt the power following strategy to reduce and frequently discharge and recharge the infringement that electrokinetic cell is caused, but because car load traffic coverage power pulses scope is bigger, car load power demand computation model complexity is difficult to obtain good control effect.
When entire car controller requires distance increasing unit to start according to the control policy of car load, at first send startup command to Engine ECU, electronic throttle controller and three-phase fully-controlled rectifying and pressure-regulating phase shift trigger, this moment, electronic throttle controller was set to 90 ° with the conduction angle that throttle gate is adjusted to startup aperture, three-phase fully-controlled rectifying and pressure-regulating phase shift trigger three-phase full-controlled rectifier bridge, and with the adhesive of starter contactless switch, starter is finished the startup of driving engine after being dragged to of driving engine started rotating speed.Treat that engine speed is stable after set rotating speed, three-phase fully-controlled rectifying and pressure-regulating phase shift trigger begins the starting power closed loop control.
In the distance increasing unit working process, because the car load demand power of electronlmobil constantly changes, cause the fluctuation of DC bus-bar voltage, common this scope range of the fluctuation of voltage is 0.7
U N ~ 1.0
U N ,
U N Be the rated voltage of dc bus, this voltage fluctuation causes and makes three-phase fully-controlled rectifying and pressure-regulating phase shift trigger have only the conducting angle by continuous adjustment three-phase full-controlled rectifier bridge just can make the distance increasing unit horsepower output constant.
The structure of three-phase fully-controlled rectifying and pressure-regulating phase shift trigger power closed loop control system as shown in Figure 5, system's output voltage that the collection of three-phase fully-controlled rectifying and pressure-regulating phase shift trigger is obtained by the voltage sample electric resistance partial pressure and the system's outgoing current that is obtained by current sensor
I 1f, the output voltage of system and outgoing current
I 1fThe horsepower output of the system that obtains that multiplies each other
P f, this horsepower output
P fWith setting power
P *Difference as the input of power P I regulating control, power P I regulating control is output as the target outgoing current of system
, the current PI regulating control is according to system's outgoing current
I 1fWith the target current value by the output of power P I regulating control
Between difference, adjust the conduction angle of phase-shift trigger circuit, constitute ring in the current control, realize the closed loop control of system power, also constituted power control outer shroud simultaneously, realize the power closed loop control of three-phase fully-controlled rectifier.
This power closed loop is in essence when the car load dc bus fluctuates, by the conduction angle of adjustment three phase controlled rectifier circuit, and then the output voltage U of adjustment distance increasing unit
Out, the outgoing current I of the adjustment distance increasing unit in a nearlyer step
OutThereby, reach the constant purpose of horsepower output.The distance increasing unit output voltage U
Out, electric current I
OutAnd the relation between the power as shown in Figure 7.
The working speed of driving engine is issued electronic throttle controller by entire car controller according to system configuration, and electronic throttle controller is gathered the rotating speed of driving engine, adjusts the aperture of throttle gate, realizes the closed loop control to engine speed.The working speed n here is by the nominal voltage of electrokinetic cell
U C , permagnetic synchronous motor back electromotive-force constant
E R And the interval decision of the economical operation rotating speed of driving engine.Generally get
, and answer appropriate design
U C With
E R Make
nBe positioned at the economical operation rotary speed area of driving engine.
During engine operation, because external interference such as the fluctuation of load and car load vibration cause the fluctuation of rotating speed easily.The fluctuation of rotating speed makes driving engine often work in transient process, has caused the reduction of engine efficiency.In order to overcome the degree of cyclic irregularity of driving engine, take the engine speed closed loop control, the control system structure is as shown in Figure 6.Electronic throttle is gathered the tach signal of engine speed sensor output
, according to tach signal and by the horsepower output of distance increasing unit and the regional setting rotating speed that determines of efficient operation of driving engine
n *Difference, carry out rotating speed PI (ratio-integration) and regulate, the throttle opening expected value of rotating speed pi regulator output
W *With the actual aperture of throttle gate
W fDifference carry out aperture as the input of throttle opening pi regulator and regulate the throttle valve drive armature target current value of throttle opening pi regulator output
With actual current value
I 2fDifference as the input of current PI regulating control, the PWM duty cycle signals of current PI regulating control output links to each other with the throttle valve drive motor through overdrive circuit, realizes the adjusting of throttle opening, and then the realization engine speed is constant.
The above only is preferred implementation of the present invention, and protection scope of the present invention also not only is confined to above-described embodiment, and all technical schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention.Should be pointed out that for those skilled in the art in the some improvements and modifications that do not break away under the principle of the invention prerequisite, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. electronlmobil distance increasing unit, its structure comprises driving engine, Engine ECU, electronic throttle controller, dc starter, engine speed sensor, AC permanent magnet synchronous motor, three-phase fully-controlled rectifier, filter capacitor, voltage sample resistance, current sensor, flywheel diode and three-phase fully-controlled rectifying and pressure-regulating phase shift trigger, it is characterized in that: dc starter is connected with the 12V storage battery via contactless switch; Driving engine is connected with dc starter, driving engine EAC, electronic throttle controller, engine speed sensor, AC permanent magnet synchronous motor, and electronic throttle controller is connecting engine speed sensor; The side that exchanges of AC permanent magnet synchronous motor and three-phase fully-controlled rectifier links to each other; The three-phase fully-controlled rectifier is made of six thyristor, its DC side two ends and filter capacitor, voltage sample resistance, flywheel diode parallel connection; Filter capacitor is made of the chemical capacitor more than two; Voltage sample resistance is made of two above resistance; Three-phase fully-controlled rectifying and pressure-regulating phase shift trigger links to each other with voltage sample resistance, and links to each other with filter capacitor by current sensor.
2. a kind of electronlmobil distance increasing unit according to claim 1, it is characterized in that: described driving engine is the miniwatt spark ignition engine of 10KW ~ 30KW.
3. a kind of electronlmobil distance increasing unit according to claim 1, it is characterized in that: described AC permanent magnet synchronous motor is three phase electric machine.
4. a kind of electronlmobil distance increasing unit according to claim 1 is characterized in that: described AC permanent magnet synchronous motor is connected with driving engine by belt, gear, perhaps is connected with driving engine is coaxial.
5. a kind of electronlmobil distance increasing unit according to claim 1, it is characterized in that: described current sensor is Hall current sensor.
6. a kind of electronlmobil distance increasing unit according to claim 1, it is characterized in that: described flywheel diode is high-capacity schottky diode.
7. a kind of electronlmobil distance increasing unit according to claim 1 is characterized in that: described filter capacitor is made of the equal withstand voltage of two series connection, the chemical capacitor of equal capacity.
8. a kind of electronlmobil distance increasing unit according to claim 1, it is characterized in that: described voltage sample resistance is made of two resistance.
9. electronlmobil distance increasing unit constant-power control method, it is characterized in that: adopt based on each described electronlmobil distance increasing unit structure among the claim 1-8 system's output voltage that the collection of three-phase fully-controlled rectifying and pressure-regulating phase shift trigger is obtained by the voltage sample electric resistance partial pressure and the system's outgoing current that is obtained by current sensor
I 1f, the output voltage of system and outgoing current
I 1fThe horsepower output of the system that obtains that multiplies each other
P f, this horsepower output
P fWith setting power
P *Difference as the input of power P I (ratio-integration) regulating control, power P I regulating control is output as the target outgoing current of system
, the current PI regulating control is according to system's outgoing current
I 1fWith the target outgoing current by the output of power P I regulating control
Between difference, adjust the conduction angle of phase-shift trigger circuit, constitute ring in the current control, realize the closed loop control of system power, and then constitute power control outer shroud that realize the power closed loop control of three-phase fully-controlled rectifier, namely distance increasing unit power is constant.
10. the permanent method for controlling number of revolution of electronlmobil distance increasing unit is characterized in that, adopts based on each described electronlmobil distance increasing unit structure among the claim 1-8, is gathered the tach signal of engine speed sensor output by electronic throttle
, according to tach signal and by the horsepower output of distance increasing unit and the regional setting rotating speed that determines of efficient operation of driving engine
n *Difference, carry out rotating speed PI and regulate, the throttle opening expected value of rotating speed pi regulator output
W *With the actual aperture of throttle gate
W fDifference carry out aperture as the input of throttle opening pi regulator and regulate the throttle valve drive armature target current value of throttle opening pi regulator output
With actual current value
I 2fDifference as the input of current PI regulating control, the PWM(pulse width modulation of current PI regulating control output) duty cycle signals links to each other with the throttle valve drive motor through overdrive circuit, realize the adjusting of throttle opening, and then the realization engine speed is constant.
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| CN103501127A (en) * | 2013-10-11 | 2014-01-08 | 湖南开启时代电子信息技术有限公司 | Thyristor forced-commutation switched reluctance motor power conversion circuit |
| CN103696857A (en) * | 2013-12-19 | 2014-04-02 | 安徽长丰扬子汽车制造有限责任公司 | Electronic throttle valve device for electric vehicle range extender and control method |
| CN104579112A (en) * | 2015-01-25 | 2015-04-29 | 襄阳绿控电气科技有限公司 | Auxiliary power controller used for electric automobile |
| CN105099239A (en) * | 2014-05-06 | 2015-11-25 | 上海汽车集团股份有限公司 | Inverter, automobile power supply device, and automobile apparatus |
| CN105119504A (en) * | 2015-09-16 | 2015-12-02 | 中国船舶重工集团公司第七一一研究所 | Generator set rectifier device |
| CN105270192A (en) * | 2015-10-19 | 2016-01-27 | 上海金鹏科技有限公司 | Range extender for pure electric vehicle |
| CN105539424A (en) * | 2015-12-29 | 2016-05-04 | 吉林大学 | Energy control method of extended range electric vehicle |
| CN105584477A (en) * | 2016-03-08 | 2016-05-18 | 吉林大学 | Control method for switching working points of range extender |
| CN106671797A (en) * | 2016-12-31 | 2017-05-17 | 潍坊经纬动力科技有限公司 | Novel control method for range extender |
| CN107339185A (en) * | 2017-07-04 | 2017-11-10 | 张胜 | A kind of new distance increasing unit starts controller |
| CN107336622A (en) * | 2017-05-26 | 2017-11-10 | 苏州紫荆清远新能源汽车技术有限公司 | A kind of stroke-increasing electric automobile and its control method |
| CN107432715A (en) * | 2017-09-08 | 2017-12-05 | 广东威灵电机制造有限公司 | Dust catcher, electric motor and controller method and control device |
| CN107437910A (en) * | 2017-09-08 | 2017-12-05 | 广东威灵电机制造有限公司 | Dust catcher, motor and its constant-power control method, device |
| CN107612444A (en) * | 2017-09-08 | 2018-01-19 | 广东威灵电机制造有限公司 | Dust catcher, motor and its constant-power control method, device |
| CN107634689A (en) * | 2017-09-08 | 2018-01-26 | 广东威灵电机制造有限公司 | Dust catcher, motor and its constant-power control method, device |
| CN107733309A (en) * | 2017-11-09 | 2018-02-23 | 天津英捷利汽车技术有限责任公司 | A kind of weak magnetic control system used for electric vehicle based on dutycycle |
| CN109050347A (en) * | 2018-08-02 | 2018-12-21 | 浙江大学 | A kind of multifunctional permanent-magnet synchronization distance increasing unit control method |
| CN109270966A (en) * | 2018-08-31 | 2019-01-25 | 沈阳丁通用科技研究院 | Energy-saving permanent-magnet speed-regulating system and method |
| CN109334473A (en) * | 2018-11-30 | 2019-02-15 | 开封金诺车业有限公司 | High-power increasing journey straight drive system for electric car |
| CN110138311A (en) * | 2019-06-18 | 2019-08-16 | 宁波奥克斯电气股份有限公司 | A kind of compressor invariable power preheating control method, circuit and air conditioner |
| CN110217115A (en) * | 2019-06-25 | 2019-09-10 | 芜湖宏宇汽车电子有限责任公司 | A kind of automobile travel increasing apparatus and control method |
| CN110239367A (en) * | 2019-07-05 | 2019-09-17 | 芜湖宏宇汽车电子有限责任公司 | A kind of new-energy automobile intelligence distance increasing unit and control method |
| CN110901415A (en) * | 2019-12-18 | 2020-03-24 | 东风汽车有限公司 | Range extender starting control method and system |
| CN111262493A (en) * | 2020-02-18 | 2020-06-09 | 松下电器机电（中国）有限公司 | Constant-power dust collector and motor control method thereof |
| CN112356819A (en) * | 2019-10-23 | 2021-02-12 | 万向集团公司 | Range extender power following control method for new energy automobile |
| CN112600469A (en) * | 2020-11-27 | 2021-04-02 | 盐城工学院 | Brushless direct current power generation system of range extender of electric automobile |
| CN112659975A (en) * | 2019-10-16 | 2021-04-16 | 重庆隆鑫机车有限公司 | Voltage stabilization control method and device for power battery voltage and electronic equipment |
| CN113525343A (en) * | 2021-08-31 | 2021-10-22 | 湘潭大学 | Energy flow optimization control method for extended range electric vehicle |
| CN113734144A (en) * | 2021-08-26 | 2021-12-03 | 华人运通(江苏)技术有限公司 | Mode control method, device and system of power system of vehicle and vehicle |
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| CN103501127B (en) * | 2013-10-11 | 2016-07-06 | 湖南开启时代电子信息技术有限公司 | IGCT forces phase-change switch reluctance motor power conversion circuit |
| CN103501127A (en) * | 2013-10-11 | 2014-01-08 | 湖南开启时代电子信息技术有限公司 | Thyristor forced-commutation switched reluctance motor power conversion circuit |
| CN103696857A (en) * | 2013-12-19 | 2014-04-02 | 安徽长丰扬子汽车制造有限责任公司 | Electronic throttle valve device for electric vehicle range extender and control method |
| CN105099239A (en) * | 2014-05-06 | 2015-11-25 | 上海汽车集团股份有限公司 | Inverter, automobile power supply device, and automobile apparatus |
| CN104579112A (en) * | 2015-01-25 | 2015-04-29 | 襄阳绿控电气科技有限公司 | Auxiliary power controller used for electric automobile |
| CN105119504B (en) * | 2015-09-16 | 2017-11-14 | 中国船舶重工集团公司第七一一研究所 | Generator set rectification device |
| CN105119504A (en) * | 2015-09-16 | 2015-12-02 | 中国船舶重工集团公司第七一一研究所 | Generator set rectifier device |
| CN105270192A (en) * | 2015-10-19 | 2016-01-27 | 上海金鹏科技有限公司 | Range extender for pure electric vehicle |
| CN105539424A (en) * | 2015-12-29 | 2016-05-04 | 吉林大学 | Energy control method of extended range electric vehicle |
| CN105584477A (en) * | 2016-03-08 | 2016-05-18 | 吉林大学 | Control method for switching working points of range extender |
| CN106671797A (en) * | 2016-12-31 | 2017-05-17 | 潍坊经纬动力科技有限公司 | Novel control method for range extender |
| CN107336622A (en) * | 2017-05-26 | 2017-11-10 | 苏州紫荆清远新能源汽车技术有限公司 | A kind of stroke-increasing electric automobile and its control method |
| CN107339185A (en) * | 2017-07-04 | 2017-11-10 | 张胜 | A kind of new distance increasing unit starts controller |
| CN107432715A (en) * | 2017-09-08 | 2017-12-05 | 广东威灵电机制造有限公司 | Dust catcher, electric motor and controller method and control device |
| CN107437910A (en) * | 2017-09-08 | 2017-12-05 | 广东威灵电机制造有限公司 | Dust catcher, motor and its constant-power control method, device |
| CN107612444A (en) * | 2017-09-08 | 2018-01-19 | 广东威灵电机制造有限公司 | Dust catcher, motor and its constant-power control method, device |
| CN107634689A (en) * | 2017-09-08 | 2018-01-26 | 广东威灵电机制造有限公司 | Dust catcher, motor and its constant-power control method, device |
| CN107437910B (en) * | 2017-09-08 | 2020-06-12 | 广东威灵电机制造有限公司 | Dust collector, motor and constant power control method and device of motor |
| CN107432715B (en) * | 2017-09-08 | 2021-03-23 | 广东威灵电机制造有限公司 | Dust collector, motor and control method and control device of motor |
| CN107733309A (en) * | 2017-11-09 | 2018-02-23 | 天津英捷利汽车技术有限责任公司 | A kind of weak magnetic control system used for electric vehicle based on dutycycle |
| CN109050347A (en) * | 2018-08-02 | 2018-12-21 | 浙江大学 | A kind of multifunctional permanent-magnet synchronization distance increasing unit control method |
| CN109050347B (en) * | 2018-08-02 | 2020-06-23 | 浙江大学 | Control method of multifunctional permanent magnet synchronous range extender |
| CN109270966A (en) * | 2018-08-31 | 2019-01-25 | 沈阳丁通用科技研究院 | Energy-saving permanent-magnet speed-regulating system and method |
| CN109334473B (en) * | 2018-11-30 | 2023-09-08 | 李忠才 | High-power range-extending direct-drive system for electric automobile |
| CN109334473A (en) * | 2018-11-30 | 2019-02-15 | 开封金诺车业有限公司 | High-power increasing journey straight drive system for electric car |
| CN110138311A (en) * | 2019-06-18 | 2019-08-16 | 宁波奥克斯电气股份有限公司 | A kind of compressor invariable power preheating control method, circuit and air conditioner |
| CN110138311B (en) * | 2019-06-18 | 2020-06-30 | 宁波奥克斯电气股份有限公司 | Control method and circuit for constant-power preheating of compressor and air conditioner |
| CN110217115A (en) * | 2019-06-25 | 2019-09-10 | 芜湖宏宇汽车电子有限责任公司 | A kind of automobile travel increasing apparatus and control method |
| CN110239367A (en) * | 2019-07-05 | 2019-09-17 | 芜湖宏宇汽车电子有限责任公司 | A kind of new-energy automobile intelligence distance increasing unit and control method |
| CN112659975A (en) * | 2019-10-16 | 2021-04-16 | 重庆隆鑫机车有限公司 | Voltage stabilization control method and device for power battery voltage and electronic equipment |
| CN112356819A (en) * | 2019-10-23 | 2021-02-12 | 万向集团公司 | Range extender power following control method for new energy automobile |
| CN110901415B (en) * | 2019-12-18 | 2021-08-03 | 东风汽车有限公司 | Range extender starting control method and system |
| CN110901415A (en) * | 2019-12-18 | 2020-03-24 | 东风汽车有限公司 | Range extender starting control method and system |
| CN111262493A (en) * | 2020-02-18 | 2020-06-09 | 松下电器机电（中国）有限公司 | Constant-power dust collector and motor control method thereof |
| CN111262493B (en) * | 2020-02-18 | 2023-08-29 | 松下电器机电（中国）有限公司 | Constant-power dust collector and motor control method thereof |
| CN112600469A (en) * | 2020-11-27 | 2021-04-02 | 盐城工学院 | Brushless direct current power generation system of range extender of electric automobile |
| CN113734144A (en) * | 2021-08-26 | 2021-12-03 | 华人运通(江苏)技术有限公司 | Mode control method, device and system of power system of vehicle and vehicle |
| CN113525343A (en) * | 2021-08-31 | 2021-10-22 | 湘潭大学 | Energy flow optimization control method for extended range electric vehicle |
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