CN101648527B - Motor driver with charging function - Google Patents
Motor driver with charging function Download PDFInfo
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- CN101648527B CN101648527B CN2008102104175A CN200810210417A CN101648527B CN 101648527 B CN101648527 B CN 101648527B CN 2008102104175 A CN2008102104175 A CN 2008102104175A CN 200810210417 A CN200810210417 A CN 200810210417A CN 101648527 B CN101648527 B CN 101648527B
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- motor
- charging
- arithmetic unit
- frequency transformer
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Abstract
The invention provides a motor driver with charging function, which is applied to the driving and charging control of an electric vehicle in a monomer form. The motor driver comprises a high frequency transformer primary side circuit, a high frequency transformer secondary side circuit, a central arithmetic unit, a motor driving switching group, a motor and a battery pack, wherein the high frequency transformer primary side circuit is provided with a charging switch and receives a low conduction ratio pulse width control signal sent continuously or regularly when the motor does not work; the central arithmetic unit can judge whether an external power supply accesses the device or not through detecting whether the high frequency transformer secondary side circuit generates induction voltage or not; and when the external power supply is accessed, the battery pack is charged under pulse width modulation control. Through the co-constructed device, the motor driver can directly charge the electric vehicle through a socket of the common commercial power in the monomer form, automatically judges whether the electric vehicle enters the charging state and performs battery pack energy management without a conventional external special charger.
Description
Technical field
The present invention can directly utilize general civil power that elec. vehicle is charged and the monomer device of motor driven control about a kind of, the user need not consider, judges or start to switch any charge switch when referring to charging especially, and is judged voluntarily whether charging plug has plugged external source and transferred to the motor driver with charge function that carries out charge condition by the motor driven state automatically by device proper.
Background technology
All there is the problem to battery charging in every elec. vehicle.In the prior art, most electric bicycle is limited because of the space of settling battery, charging unit is not installed on the vehicle frame, to alleviate the weight of car body, simplifies the endurance of body Structure, increase battery.For this reason, its charger exists with the separate equipment form usually, and use must be set up specific placement location or carry with car.
For the heavy type electric vehicle, except battery pack, still need and install the charger of a special use again additional on the car, so, increased the superfluous weight on the car, waste electric energy and space virtually.Therefore, the research and development of severe duty elec. vehicle need the new charging unit of invention to solve the superfluous problem that weighs, wastes electric energy and space.
For overcoming the problems referred to above, Chinese invention patent application (application number 01107473.6, publication number CN1298818A) a kind of elec. vehicle speed governing and electrically-charged incorporate device are disclosed, save heavy special charger when making electric vehicle charging, in any place that civil power is arranged, the socket that only need plug civil power can be realized the direct charging to elec. vehicle.
Yet, what this prior art was adopted is traditional analogous circuit, can't judge its charging plug whether to plug the socket of external source automatically and carry out suitable electrically-charged regulation and control, therefore must manually dial by the user and cut three interlock change-overs swith, just can make vehicle change into chargeable state, or change back the driving condition that is subjected to that to drive speed governing from chargeable state from the state that can drive speed governing.
Summary of the invention
For solving the problem that prior art stays, the invention provides a kind of motor driver that is applied to elec. vehicle, comprise a high-frequency transformer primary side loop, a high-frequency transformer secondary side loop, a central arithmetic unit, a motor driven switches set, a motor and a battery pack with charge function.Wherein high-frequency transformer primary side loop is provided with a charge switch, when not start of motor, receive one and continue or the low conduction ratio pulse width control signal of timed sending, make high-frequency transformer primary side loop when external source connects, can produce a micro-voltage earlier in high-frequency transformer secondary side loop.Central arithmetic unit then has or not induced voltage to produce by detecting high-frequency transformer secondary side loop, judges to have or not external power supply to insert this device.
In case motor stops, and the charging plug external source of having pegged graft, this device increases the conduction ratio of pulse width control signal and gives charge switch, carries out the HF switch action battery pack is carried out charged under pulse width modulation control.Otherwise when CD-ROM drive motor, central arithmetic unit makes charge switch close, and changes by the motor driven switch and carries out horsepower output control.
Be total to the structure device by this, enforcement of the present invention can monomer form allow elec. vehicle directly utilize the socket of general civil power to charge, and judges whether to enter charge condition automatically and carry out the battery pack power management, and needs external conventional dedicated charger.
The motor driven switch comprises a driving switch group, under drive pattern, changes the horsepower output of motor in order to the pulse width pulse width modulating signal that receives central arithmetic unit or commutation; Under charge mode, can allow periodically initiatively charge closing switch of central arithmetic unit, moment conducting and motor consumed power are to allow battery pack do extremely of short duration discharge, this action can be eliminated and be recharged the pond group because of continuing chemical polarization and the temperature rise phenomenon that charging causes, and promotes charging efficiency.
When power supply is pulled out, central arithmetic unit detects the induced voltage less than high-frequency transformer secondary side loop.If this moment is if the drive signal of motor produces, central arithmetic unit will enter the state of a control of its CD-ROM drive motor automatically, thereby according to the advancing of steerman, fall back, brake or acceleration and deceleration instruction control motor, and the voltage of reference battery group, electric current, state of temperature send suitable pulse width pulse width modulating signal or commutation to the motor driven switches set to change the speed of a motor vehicle.Because central arithmetic unit is by battery-powered, therefore when battery pack is pulled out, central arithmetic unit can't be sent electrically-charged impulse singla to the driving switch on the high-frequency transformer primary side loop again, just in case city's plug is connected, also can not send the joint of electricity to battery pack as the external special charger of tradition or rectifier, voltage transformer etc., at this moment the user is if touch the danger that the joint of battery pack does not have electric shock yet accidentally.
Description of drawings
Fig. 1 is the scheme drawing that motor driven of the present invention and charging are total to the embodiment of structure device.
Fig. 2 is a decision flow chart of the present invention.
Fig. 3 carries out in the action of charging HF switch for motor driven of the present invention and charging are total to structure device embodiment, and the charging current during the charge switch conducting flows to.
Fig. 4 carries out in the action of charging HF switch for motor driven of the present invention and charging are total to structure device embodiment, and the charging current when charge switch is closed flows to.
The pulse that Fig. 5 takes batteries charging for the present invention charges and discharge the electrical method scheme drawing.
Fig. 6 is motor driven of the present invention and charges when being total to structure device embodiment motor driven switch conduction the current direction when battery pack is discharged to motor.
Fig. 7 is applied to the embodiment of a 3-phase brushless motor for the present invention.
Fig. 8 is the application 3-phase brushless motor embodiment of Fig. 7, and battery is to the direction of current scheme drawing of motor discharge when the motor driven switch conduction.
Fig. 9 is the application 3-phase brushless motor embodiment of Fig. 7, carries out the charging current direction scheme drawing when charge switch is closed in the action of charging HF switch.
Figure 10 is applied to the embodiment of the brush motor of may command forward and backward for the present invention.
Figure 11 is the brush motor embodiment of the application may command forward and backward of Figure 10, in the direction of current scheme drawing of control rotating.
Figure 12 is the brush motor embodiment of the application may command forward and backward of Figure 10, carries out the charging current direction scheme drawing when charge switch is closed in the action of charging HF switch.
The specific embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and cooperate appended accompanying drawing, be described in detail below:
Driving of the present invention and electrically-charged structure device embodiment altogether comprise a high-frequency transformer primary side loop 1, a high-frequency transformer secondary side loop 2, a central arithmetic unit 3, a motor driven switches set 4, a motor M1 or a M2 and a battery pack 5 as shown in Figure 1.
Wherein high-frequency transformer primary side loop 1 comprises city's plug 11, a filter 12, a biphase rectification diode 13, a charge switch 14 and a high-frequency transformer 15 and an isolated component 16.Civil power (source of AC) is through city's plug 11, a filter 12, a biphase rectification diode 13, constitute one and exchange the commentaries on classics direct current circuit the whole primary side of transporting to high-frequency electrical depressor 15 for direct current (DC) of civil power, when charge switch 14 carries out the HF switch action, secondary side at high-frequency transformer 15 produces induced voltage, in order to battery pack 5 is charged.
Motor driver with charge function of the present invention can detect automatically whether the civil power input is arranged, its determining step as shown in Figure 2, utilize central arithmetic unit 3 to work as motor and whether be in the state of not start, that is judge whether motor driven order 33 is zero in step 61 detection; If non-vanishing, execution in step 66 enters the drive controlling state; If motor driven order 33 is zero, execution in step 62, the pulse width control signal of low conduction ratio is sent in lasting timing, delivers to charge switch 14 through isolated component 16 (such as high-speed light impeller disk or driving transformer etc.).
After city's plug 11 connects civil power, alternating current is just via filter 12, behind the biphase rectification diode 13, primary side at high-frequency transformer 15 obtains HVDC input power supply (if 110V electric main, the about 156V of vdc after the rectification, if the electric main of 220V, about 311V after rectification), when charge switch 14 carries out the HF switch action, but central arithmetic unit 3 is execution in step 63 just, detect diode D2 by the analogy digital converter and connect high-frequency transformer 15 second siding rings generation induced voltage 15, can judge that city's plug 11 has connected civil power, follow execution in step 65, enter the charging state of a control, make charge switch 14 carry out a HF switch action battery pack is carried out pulse width modulation control, battery is charged.
After entering normal charging condition, central arithmetic unit 3 is by another kind of voltage, electric current and the temperature detection value 32 that reads battery pack than digital converter, according to electrically-charged control voltage, current target, send impulse singla, via isolated component 16 (optical coupling device or driving transformer), the charge switch 14 of high-frequency transformer 15 first siding rings is triggered the HF switch action of relative conduction ratio, by changing the conduction ratio of charge switch 14, reach various required charging performances such as control charging current, voltage.
Present embodiment is the example explanation with the exchange power supply structure of " return and speed " principle.When the action of charging HF switch is carried out, during charge switch 14 conducting at the beginning, current return as shown in Figure 3, because of the induced potential polar relationship, the diode D2 of high-frequency transformer 15 secondary sides forms and opens circuit, the electrical power storage of primary side is in high-frequency transformer 15 iron cores, and 1 of capacitor C is discharged to battery pack 5.When the action of charging HF switch is carried out, charge switch 14 is closed (off state), current return as shown in Figure 4, wherein because of the polarity of induced potential, cause the diode D2 of high-frequency transformer 15 secondary sides to form path, the electric energy that is stored in during charge switch 14 conductings in high-frequency transformer 15 iron cores begins to be released into capacitor C 1 and battery pack 5.Via continuing above-mentioned HF switch action (general switching frequency design is greater than 30KHz), can realize the alternation running of " flyback " exchange power supply, and enter normal charging condition.
The principle that present embodiment has is as shown in Figure 5 implemented the function that pulsed discharges and recharges: after charge switch 14 is carried out HF switch action charging a period of time, closing opportunity of design one-period property, then initiatively send the very brief and unlikely impulse singla that makes revolution to motor driven switches set 4, i.e. current direction during 4 conductings of state motor driven switches set for this reason shown in Figure 6 by the passage of central arithmetic unit 3.By motor M1 battery pack 5 is carried out very brief discharging action, eliminate being recharged pond group 5, promote charging efficiency because of continuing chemical polarization and the temperature rise phenomenon that charging causes.
And for example shown in Figure 6; when present embodiment enters motor driven state of a control 66; central arithmetic unit 3 can be according to driver's operational motion; for example turn; step on the accelerator or required walk help information produce a motor driven order 33; and IMU is crossed the voltage of analogy digital converter monitoring battery pack; electric current; state of temperature 32 judges whether to carry out excess current; cross low voltage; behind the overheat protector; send required pulse width modulating signal to motor by the passage that connects motor driven switch 4; change the horsepower output of motor M1, drive the speed of a motor vehicle thereby can change according to the will of steerman.Current direction when person shown in the figure is 4 conductings of motor driven switches set.
Those skilled in the art should know that though more than explanation describes with brush motor M1, the implementer needn't be exceeded with brush motor M1; To shown in Figure 9, one uses the alternate embodiment that 3-phase brushless motor M2 substitutes aforementioned brush motor M1 as Fig. 7; Be to carry out commutation and pulse width modulation with driving brushless motor M2 equally with central arithmetic unit 3 control motor driven switches (going up arm switch A1 and following arm switch A2).Dotted arrows is illustrated as shown in Figure 8, when last arm switch A1 and following arm switch A2 under central arithmetic unit 3 is controlled during conducting, battery comprises to the major general the commutation direction of current of motor discharge: current path a1 → b2, b3, a2 → b1, b3, and a3 → b1, b2 person etc.As schematically shown in Figure 9, carry out when the action of charging HF switch, when charge switch 14 was closed (off), charging current was along the path flow of being illustrated as figure dotted line arrow.
And for example Figure 10 is to shown in Figure 12, use another alternate embodiment of the brush motor M1 of may command forward and backward, wherein carry out commutation and pulse width modulation with driving brush motor M1 with central arithmetic unit 3 control motor driven switches (going up arm switch A3 and following arm switch A4) equally.As shown in figure 11, when central arithmetic element 3 control brush motor M1 are just changeing, path a4 → b5 that its direction of current such as dotted arrows are illustrated; During control brush motor M1 counter-rotating, path a5 → b4 that direction of current such as dotted arrows are illustrated.As shown in figure 12, carry out when the action of charging HF switch, when charge switch 14 was closed (off), charging current was along the path flow of being illustrated as figure dotted line arrow.
The present invention and each prior art show that it can directly utilize the socket of general civil power to charge except no longer needing external general traditional special charger in comparison.In addition, motor driven of the present invention is total to the structure device with charging can judge whether to peg graft civil power voluntarily, and the pattern of can automatically switch again charging or CD-ROM drive motor, and in process of charging, can also utilize motor to carry out the pulsed charging/discharging thereof of very brief discharge, eliminate battery pack because of continuing chemical polarization and the temperature rise phenomenon that charging causes, promote charging efficiency.
The announcement of above embodiment is in order to explanation the present invention, be not in order to restriction the present invention, so the displacement of all equivalence elements, same function configuration or motor drive circuit extended to by present embodiment use " full-bridge type " circuit that four groups of charge switch may command brush motors advance, retreat or " brushless motor " driving circuit extension framework that uses six groups of charge switchs still to belong to category of the present invention.
Claims (8)
1. the motor driver with charge function comprises a high-frequency transformer primary side loop, a high-frequency transformer secondary side loop, a central arithmetic unit, a motor driven switches set, a motor and a battery pack; It is characterized in that this central arithmetic unit detects this high-frequency transformer primary side loop automatically and has or not external civil power to enter when this not start of motor driven switches set, judge whether to enter a charging state of a control according to this; This high-frequency transformer primary side loop is provided with a charge switch, be in the state of not start when motor, continue the pulse width control signal that timing is sent in order to receive this central arithmetic unit, making central arithmetic unit be detected high frequency pressure-changing secondary side loop has none induced voltage to produce, and uses judgement and has or not external civil power can carry out this charging state of a control; This high-frequency transformer primary side loop comprises that city's plug, exchanges commentaries on classics direct current circuit, a charge switch and a high-frequency transformer and an isolated component; When city's plug is electrically connected with the city, utilize this interchange to change the primary side that direct current circuit transfers electric main to direct current (DC) tremendously high frequency voltage device, when this charge switch receives the pulse width control signal that this central arithmetic unit continues regularly to send, make the secondary side of this high-frequency electrical depressor produce this induced voltage, use judgement and have or not external civil power can carry out this charging state of a control.
2. the motor driver with charge function as claimed in claim 1, it is characterized in that, this central arithmetic unit triggers the HF switch action via this isolated component to this charge switch, by changing the conduction ratio of this charge switch, reaches the charging control of control charging current, voltage.
3. the motor driver with charge function as claimed in claim 1, it is characterized in that, this central arithmetic unit enters the state of a control of a CD-ROM drive motor when receiving the drive signal of a motor, and according to this drive signal send a cooresponding modulation signal to this motor driven switches set to control this motor.
4. the motor driver with charge function as claimed in claim 1 or 2 is characterized in that, this isolated component is an optical coupling device.
5. the motor driver with charge function as claimed in claim 1 or 2 is characterized in that, this isolated component is a driving transformer.
6. the motor driver with charge function as claimed in claim 1 or 2, it is characterized in that, this charge switch is done closing of one-period property, and initiatively send the very brief and unlikely impulse singla of this revolution that makes to this motor driven switch by this central arithmetic unit, by this motor this battery pack is carried out a very brief discharging action, to eliminate this battery pack because of continuing chemical polarization and the temperature rise phenomenon that charging takes place.
7. as any one described motor driver in the claim 1 to 3, it is characterized in that this motor is a brush motor with charge function.
8. as any one described motor driver in the claim 1 to 3, it is characterized in that this motor is a brushless motor with charge function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102104175A CN101648527B (en) | 2008-08-15 | 2008-08-15 | Motor driver with charging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102104175A CN101648527B (en) | 2008-08-15 | 2008-08-15 | Motor driver with charging function |
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| Publication Number | Publication Date |
|---|---|
| CN101648527A CN101648527A (en) | 2010-02-17 |
| CN101648527B true CN101648527B (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102104175A Expired - Fee Related CN101648527B (en) | 2008-08-15 | 2008-08-15 | Motor driver with charging function |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102651631A (en) * | 2011-02-24 | 2012-08-29 | 上海瑞伯德智能系统科技有限公司 | Traction frequency converter circuit with charging function for electric vehicle |
| CN105553002B (en) * | 2015-12-24 | 2018-03-20 | 南通钰泰电子科技有限公司 | The method for managing charge/discharge and integrated circuit of a kind of portable power source |
| CN115065128B (en) * | 2022-07-26 | 2023-01-17 | 荣耀终端有限公司 | Electronic device and charging control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2701163Y (en) * | 2004-04-30 | 2005-05-18 | 哈尔滨工业大学 | Standing wave type piezoelectric motor driver |
| CN1799191A (en) * | 2003-06-18 | 2006-07-05 | 松下电器产业株式会社 | Motor driver, motor driven by the motor driver, and apparatus employing the motor |
| CN101206261A (en) * | 2006-12-15 | 2008-06-25 | 佛朗哥·巴尔迪 | Improvements to an obstacle sensor operating by collimation and focusing of the emitted wave |
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2008
- 2008-08-15 CN CN2008102104175A patent/CN101648527B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1799191A (en) * | 2003-06-18 | 2006-07-05 | 松下电器产业株式会社 | Motor driver, motor driven by the motor driver, and apparatus employing the motor |
| CN2701163Y (en) * | 2004-04-30 | 2005-05-18 | 哈尔滨工业大学 | Standing wave type piezoelectric motor driver |
| CN101206261A (en) * | 2006-12-15 | 2008-06-25 | 佛朗哥·巴尔迪 | Improvements to an obstacle sensor operating by collimation and focusing of the emitted wave |
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| CN101648527A (en) | 2010-02-17 |
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