CN101590815B - Power drive device - Google Patents
Power drive device Download PDFInfo
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- CN101590815B CN101590815B CN2008101086625A CN200810108662A CN101590815B CN 101590815 B CN101590815 B CN 101590815B CN 2008101086625 A CN2008101086625 A CN 2008101086625A CN 200810108662 A CN200810108662 A CN 200810108662A CN 101590815 B CN101590815 B CN 101590815B
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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Abstract
The invention relates to a power drive device comprising a controller (1), a generator (4) and a voltage comparing device (5), wherein the voltage comparing device (5) is used for respectively detecting the output voltage of the generator (4) and the voltage value of a battery to be charged and comparing the output voltage of the generator (4) to be detected with the voltage value of the battery to be charged; and the controller (1) is used for controlling the generator (4) to generate electricity according to the comparing result. The power drive device also comprises a current changing device (13); when the comparing result shows that the output voltage value of the generator (4) is smaller than that of the battery to be charged, the current changing device (13) receives a current direction changing command of the controller (1) and controls the direction change of the current flowing through the current changing device (13). By using the power drive device, the generator (4) can charge the battery to be charged when running at a lower speed, thereby the generating efficiency of the generator (4) is improved.
Description
Technical field
The present invention relates to automobile manufacturing field, particularly relate to hybrid electric vehicle and make the field.
Background technology
Power Drive Unit is used for providing power driven and each storage battery in car that charging power is provided to vehicle, is the core texture of vehicle.Existing Power Drive Unit comprises starter and electrical generator, and starter is used for the engine running of motor vehicle, and the battery to be charged to vehicle charges electrical generator for the induced electric motive force that produces by its running.This starter and electrical generator can discretely be constructed, also can be realized respectively by an electrical generator function of fire an engine and generating, but existing electrical generator is when low-speed running, often lower than the voltage of battery to be charged, therefore be difficult to realize the charging to this battery to be charged due to the value of the induced electric motive force of its generation.
In addition, existing Power Drive Unit adopts Hall element to gather the rotor-position of electrical generator usually, this Hall element is higher to the requirement of working environment, job insecurity and accuracy of detection poor, thereby reduced the generating efficiency of the electrical generator in the Power Drive Unit.
Summary of the invention
In order to overcome the not high problem of electrical generator generating efficiency in existing Power Drive Unit, the invention provides the higher Power Drive Unit of a kind of generating efficiency.
The invention provides a kind of Power Drive Unit, this Power Drive Unit comprises controller, electrical generator, voltage comparator device, described controller is electrically connected to electrical generator and voltage comparator device respectively, voltage comparator device also is electrically connected to electrical generator, voltage comparator device is used for detecting respectively the output voltage of electrical generator and the voltage of battery to be charged, and the output voltage values of the electrical generator that detects is compared with the magnitude of voltage of battery to be charged; Controller is used for the comparative result of receiver voltage discriminator, sends the instruction of start the engine or generating initial order to control the generating of electrical generator according to this comparative result to electrical generator, and electrical generator is used for receiving instruction start the engine or the generating of controller; Wherein, described Power Drive Unit also comprises current converter, this current converter is electrically connected to controller and electrical generator respectively, the described comparative result that receives when controller be the output voltage values of electrical generator during less than the magnitude of voltage of battery to be charged outgoing current break-in instruction to this current converter, this current converter receives this electric current break-in instruction, and controls the electric current break-in of flowing through this current converter.
The electrical generator that Power Drive Unit provided by the invention uses, both can realize the function of self-starting motor, again can be in this generator operation in than slow speed of revolution, the output voltage values at its two ends is realized the charging to this battery to be charged during less than cell pressure to be charged.Thus, greatly improved the generating efficiency of electrical generator.
Description of drawings
Fig. 1 is the structured flowchart according to Power Drive Unit of the present invention;
Fig. 2 is the structured flowchart according to the Power Drive Unit of one embodiment of the present invention;
Fig. 3 is the circuit diagram according to control circuit of the present invention.
The specific embodiment
The invention provides a kind of Power Drive Unit, this Power Drive Unit comprises controller 1, electrical generator 4, voltage comparator device 5, described controller 1 is electrically connected to electrical generator 4 and voltage comparator device 5 respectively, voltage comparator device 5 also is electrically connected to electrical generator 4, voltage comparator device 5 is used for detecting respectively the output voltage of electrical generator 4 and the voltage of battery to be charged, and the output voltage values of the electrical generator 4 that detects is compared with the magnitude of voltage of battery to be charged; Controller 1 is used for the comparative result of receiver voltage discriminator 5, send the instruction of start the engines or generating initial order to control the generating of electrical generator 4 according to this comparative result to electrical generator 4, electrical generator 4 is used for receiving instruction start the engine or the generating of controller 1; Wherein, described Power Drive Unit also comprises current converter 13, this current converter 13 is electrically connected to controller 1 and electrical generator 4 respectively, the described comparative result that receives when controller 1 be the output voltage values of electrical generator 4 during less than the magnitude of voltage of battery to be charged outgoing current break-in instruction to this current converter 13, this current converter 13 receives this electric current break-in instruction, and controls the electric current break-in of flowing through this current converter 13.
Described electrical generator 4 is to pass through commercially available permasyn morot, and is preferably that to adopt torque peak be that 30Nm, maximum generation power are that 5Kw, maximum temperaturerise are that 125K and diameter are 140mm, highly are the permasyn morot of 130mm.as known to the skilled person, described electrical generator 4 also comprises three phase windings 10, rotor 20 and magslip 19, described three phase windings 10 comprise and differ each other the U of 120 ° on phase place, V and W are mutually, magslip 19 respectively with three phase windings 10 of controller 1 and electrical generator 4 in U, V and W are electrically connected, rotor 20 is used for by rotating at described U, V and W produce induced electric motive force in mutually, magslip 19 is for detection of described U, V and W mutually with the relative position of rotor 20, and the rotor 20 that ought detect is positioned at U, in the time of on the position at V and the W one place in mutually, send rotor-position signal to controller 1, controller 1 receives described rotor-position signal, if this moment, electrical generator 4 operated in generating state, utilize this induced electric motive force that produces mutually to treat the rechargeable battery charging.
In addition, described electrical generator 4 has the function of starter and electrical generator concurrently.When the needs fire an engine, described electrical generator 4 can be used as starter and uses, and controller 1 is controlled electrical generator 4 fire an engines after receiving starting command, thereby makes electrical generator 4 realize the function of starter.The principle of work when principle of work that electrical generator 4 runs on the starter state is used as starter with common motor is identical, and this principle is known to the skilled person, and does not repeat them here.
Owing to adopting permasyn morot as electrical generator 4, the starter of discrete structure, the problem that electrical generator needs periodical maintenance have been avoided, because the rotor portion of permasyn morot is simple and compact for structure, the friction easily worn parts such as non-carbonate and commutator, by oil lubrication system, can avoid common electrical generator because the grease that long-play produces lacks problem.Therefore described electrical generator 4 may be defined as non-maintaining product.In addition, because the excitation mode of permasyn morot is high-performance Ne-Fe-B magnet steel excitation, make the magnetic loading of motor increase, can increase output power of motor under the condition of constancy of volume, improve electric power generation efficient, and the rotor of permasyn morot for radially, plug in construction, thereby make leakage field reduce.Therefore, make permasyn morot have higher generating efficiency.
In addition, described electrical generator 4 also can adopt double cooling mode, and namely inside selects oil cooling but, and the outside selects wind cooling, thereby effectively reduces the temperature rise of motor.When generator operation, inevitably can produce heat, this moment, electrical generator 4 constantly was sent to electrical generator 4 to lubricating oil everywhere from electrical generator 4 bottoms, make the inner heat that produces of described electrical generator 4 be delivered to rapidly casing by lubricating oil, casing diffuses to heat in air by air-cooled, thereby reaches the purpose of heat radiation.Therefore, adopt the oil cooled double cooling mode of wind outside cooled interior, have that the pyrotoxin of making temperature reduces, temperature rise is even, the advantages such as rapid heat dissipation.
Described controller 1 can for receive and dispatch any controller of instruction, be preferably and adopt micro controller system or integrated circuit to realize.
as shown in Figure 2, described voltage comparator device 5 comprises the first voltage check device 16, second voltage detecting device 17 and the first comparator 18, the mouth of the first voltage check device 16 and second voltage detecting device 17 is electrically connected to the input end of the first comparator 18 respectively, the first voltage check device 16 input ends are electrically connected to electrical generator 4, output voltage for detection of electrical generator 4, the input end of second voltage detecting device 17 is electrically connected to battery to be charged, voltage for detection of battery to be charged, the mouth of the first comparator 18 is electrically connected to controller 1, be used for comparative result is sent to controller 1.Wherein, described the first voltage check device 16 and second voltage detecting device 17 can be the device that can detect magnitude of voltage directly or indirectly arbitrarily, are preferably to adopt A/D converter to realize.
in addition, a preferred embodiment of the invention, described Power Drive Unit also comprises speed detecting unit 14 and second comparator 15 of mutual series connection, the second comparator 15 is electrically connected to controller 1, the measuring junction of this speed detecting unit 14 is electrically connected to driving engine, for detection of the rotating speed of driving engine and the engine speed value that detects is sent to the second comparator 15, the second comparator 15 is used for the engine speed value that receives is compared with first threshold, the scope of described first threshold can be greater than 0 and less than or equal to 800, thereby when engine speed value during more than or equal to this first threshold, can think driving engine start.This moment, the second comparator 15 sent to controller 1 with this comparative result, thereby made controller 1 send the generating initial order to electrical generator 4, and electrical generator 4 enters generating state immediately.A preferred embodiment of the invention, when described Power Drive Unit is applied to hybrid power or pure electric automobile, engine speed can directly be read from the can bus, so the time can omit speed detecting unit 14, and an input end of the second comparator 15 is connected to the can bus.
As shown in Figure 3, according to one embodiment of the present invention, described current converter 13 comprises three branch roads that are connected in parallel to each other that are connected between positive electrode bus and ground, every branch road comprises a plurality of field effect transister groups that are one another in series, each field effect transister group comprises the field effect transister of a plurality of reverse parallel connections, and the one in mutually is connected the point of connection of two field effect transister groups on every branch road with U, the V of three phase windings 10 of electrical generator 4 and W respectively.Wherein, be preferably every branch road and comprise 2 groups of field effect transister groups that are one another in series, each field effect transister group comprises the field effect transister of 2 reverse parallel connections, and (U, V and the W one of being connected mutually in winding 10 is connected the point of connection that is in two groups of field effect transister groups on the same branch road with the three-phase of electrical generator 4 respectively.The grid of each field effect transister is electrically connected to controller 1 respectively, thereby controls the conducting of each field effect transister and close by controller 1.The positive and negative lead-in wire of described current converter 13 is connected with battery to be charged respectively, thereby realizes the charging to this battery to be charged.In addition, described field effect transister is preferably junction type field effect transistor.
Below in conjunction with a kind of preferred implementation of the present invention, in conjunction with Power Drive Unit provided by the invention being applied to the example of hybrid electric vehicle, the principle of work of this Power Drive Unit is described in detail.
At first, receive the instruction of fire an engine when controller 1 after, controller 1 adopts Realization of pulse width modulation based on voltage space vector (SVPWM) mode to make three phase winding energisings of electrical generator 4 by current converter 13, and the signal formations such as position signal of the described rotor 20 that gathers by magslip 19 are to the closed loop control of electrical generator 4, the actual torque of electrical generator 4 is followed the tracks of in target torque always, electrical generator 4 drives driving engine by belt, until engine starting.Described SVPWM mode is conventionally known to one of skill in the art, does not repeat them here.
After engine starting, 4 runnings of driven by engine electrical generator, the rotating speed of 14 pairs of driving engines of speed detecting unit detects, and the tachometer value that obtains is sent to the second comparator 15, the second comparator 15 is used for the engine speed value that receives is compared with first threshold, when this tachometer value during more than or equal to first threshold, can think the driving engine start, at this moment, controller 1 is controlled electrical generator 4 and is entered generating state.
After electrical generator 4 enters generating state, the first voltage check device 16 and second voltage detecting device 17 detect the output voltage of electrical generator 4 and the voltage of battery to be charged respectively, and electrical generator 4 output voltage values and the battery voltage value to be charged that obtains started to the first comparator 18, this first comparator 18 compares these two magnitudes of voltage, and comparative result is sent to controller 1.When the output voltage of electrical generator 4 is electrical generator 4 when being in the slow speed of revolution running state less than the voltage of battery to be charged, according to the control method of routine, this moment, electrical generator 4 can not be realized the output of rechargeable electrical energy.Yet the present invention takes the SVPWM mode at this, makes electrical generator 4 still can export rechargeable electrical energy in slow-revving situation, thereby realizes that described Power Drive Unit treats the charging of rechargeable battery.Described SVPWM mode is specially: as shown in Figure 3, when the output voltage of electrical generator 4 during less than the voltage of battery to be charged, at first, control 12 junction type field effect transistor T1-T12 Close Alls by controller 1, when the position that magslip 19 detects the rotor 20 of electrical generator 4 is in U phase position in three phase windings 10 of electrical generator 4, apply level signal by controller 1 and make junction type field effect transistor T1 and T7 conducting, this moment, direction of current flow was: T1-U-V-T7, namely electric current is from battery inflow generator 4.Subsequently, junction type field effect transistor T1 and T7 are closed, and junction type field effect transistor T4 and T6 are opened, because sudden change can not appear in the direction of current in three phase windings of electrical generator 4, therefore, the direction of current in three phase windings will remain unchanged, and namely this moment, direction of current flow was: T4-U-V-T6, thereby make electric current flow into battery, realized thus the charging to battery.In like manner can release described rotor 20 and be in V phase and W phase time in three phase windings, electrical generator 4 is to the process of battery output rechargeable electrical energy.
The output voltage that is electrical generator 4 when relatively result is electrical generator 4 when being in high-speed operation more than or equal to the voltage of battery to be charged, takes this moment the rectification mode can realize the rechargeable electrical energy output of 4 pairs of described batteries of electrical generator.This rectification mode is specially: junction type field effect transistor T1-T12 Close All at first, when the position that magslip 19 detects the rotor 20 of electrical generator 4 is in U phase position in three phase windings of electrical generator 4, the level signal that applies by controller 1 makes junction type field effect transistor T2 and T8 conducting, this moment U, V two-phase voltage and greater than cell pressure, the flow direction of electric current is: T8-V-U-T2, therefore electrical generator 4 can be realized the charging to battery.In addition, can also control the switching frequency of each field effect transister by controller 1, thereby generated output is controlled.In like manner can release described rotor 20 and be in V phase and W phase time in three phase windings, electrical generator 4 is to the process of battery output rechargeable electrical energy.
This shows, realized the starting of 4 pairs of driving engines of electrical generator and the output of the rechargeable electrical energy of this electrical generator 4 in full range of speed by above mode.
Claims (6)
1. Power Drive Unit, this Power Drive Unit comprises controller (1), electrical generator (4), voltage comparator device (5), described controller (1) is electrically connected to electrical generator (4) and voltage comparator device (5) respectively, voltage comparator device (5) also is electrically connected to electrical generator (4), voltage comparator device (5) is used for detecting respectively the output voltage of electrical generator (4) and the voltage of battery to be charged, and the output voltage values of the electrical generator (4) that detects is compared with the magnitude of voltage of battery to be charged; Controller (1) is used for the comparative result of receiver voltage discriminator (5), send the instruction that makes this electrical generator (4) be used as starter or send to this electrical generator (4) to electrical generator (4) according to this comparative result and control the generating initial order that this electrical generator (4) generates electricity, electrical generator (4) is used for being used as starter or generating electricity according to the instruction that is received from controller (1); it is characterized in that, described Power Drive Unit also comprises current converter (13), this current converter (13) is electrically connected to controller (1) and electrical generator (4) respectively, the described comparative result that receives when controller (1) is that the output voltage values of electrical generator (4) is during less than the magnitude of voltage of battery to be charged, described controller (1) employing Realization of pulse width modulation based on voltage space vector mode is controlled the current direction in described current converter (13), make it possible to control the described battery to be charged of current direction in the situation that needn't promote the output voltage of electrical generator (4),
described electrical generator (4) also comprises three phase windings (10), rotor (20) and magslip (19), this three phase winding (10) comprises and differs each other the U of 120 ° on phase place, V and W are mutually, magslip (19) respectively with three phase windings (10) of controller (1) and electrical generator (4) in U, V and W are electrically connected and for detection of described U, V and W mutually with the relative position of rotor (20), rotor (20) is used for by rotating at described U, V and W produce induced electric motive force in mutually, described current converter (13) comprises three branch roads that are connected in parallel to each other that are connected between positive electrode bus and ground, every branch road comprises a plurality of field effect transister groups that are one another in series, each field effect transister group comprises the field effect transister of a plurality of reverse parallel connections, point of connection between two field effect transister groups on every branch road respectively with the U of three phase windings (10) of electrical generator (4), V and the W one in mutually is connected, wherein:
During less than the magnitude of voltage of battery to be charged, all field effect transisters that controller (1) is controlled in described current converter (13) are closed when the output voltage values of electrical generator (4); the rotor (20) that electrical generator (4) detected when magslip (19) is arranged in when the getting along of three phase windings (10) of electrical generator (4), magslip (19) sends to controller (1) with this testing result, controller (1) control in current converter (13) positive electrode bus with this in field effect transister group between mutually field effect transister in parallel in the same way with falling behind mutually the adjacent phase of 120 ° and the field effect transister group between ground than this in field effect transister conducting in parallel in the same way, thereby make electric current flow into mutually described adjacent phase from this, then, controller (1) controls all field effect transisters and cuts out, and control field effect transister conducting in parallel in the same way in field effect transister in parallel in the same way in field effect transister group between these phase and ground and field effect transister group between described adjacent phase and positive electrode bus, make electric current continue to flow into mutually described adjacent phase from this, thereby realized the generating of electrical generator (4).
2. Power Drive Unit according to claim 1, wherein said voltage comparator device (5) comprises the first voltage check device (16), second voltage detecting device (17) and the first comparator (18), the first voltage check device (16) input end is electrically connected to electrical generator (4), output voltage for detection of electrical generator (4), the input end of second voltage detecting device (17) is electrically connected to battery to be charged, voltage for detection of battery to be charged, the mouth of the first voltage check device (16) and second voltage detecting device (17) is electrically connected to the input end of the first comparator (18) respectively, the mouth of the first comparator (18) is electrically connected to controller (1), be used for comparative result is sent to controller (1).
3. Power Drive Unit according to claim 1 and 2, wherein said electrical generator (4) is permasyn morot.
4. Power Drive Unit according to claim 1 and 2, wherein said Power Drive Unit also comprises speed detecting unit (14) and second comparator (15) of mutual series connection, the measuring junction of described speed detecting unit (14) is electrically connected to the driving engine of vehicle, described speed detecting unit (14) is for detection of the rotating speed of described driving engine and the engine speed value that detects is sent to the second comparator (15), the second comparator (15) is electrically connected to controller (1), be used for the engine speed value that receives is compared with first threshold, when the engine speed value that receives during more than or equal to first threshold, this comparative result is sent to controller (1), thereby make controller (1) send described generating initial order.
5. Power Drive Unit according to claim 4, the scope of wherein said first threshold is greater than 0 rev/min and less than or equal to 800 rev/mins.
6. Power Drive Unit according to claim 1, wherein,
during more than or equal to the magnitude of voltage of battery to be charged, controller (1) controls all field effect transisters and cuts out when the output voltage values of electrical generator (4), the rotor (20) that electrical generator (4) detected when magslip (19) is arranged in when the getting along of three phase windings (10) of electrical generator (4), magslip (19) sends to controller (1) with this testing result, controller (1) is controlled in current converter (13) in positive electrode bus field effect transister conducting opposite with above-mentioned transistorized closure in parallel in the same way in the field effect transister opposite with above-mentioned transistorized closure in parallel in the same way and field effect transister group between described neighbour's phase and ground in the field effect transister group between mutually with this, make electric current flow into mutually this phase from described neighbour, thereby realized the generating of electrical generator (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101086625A CN101590815B (en) | 2008-05-30 | 2008-05-30 | Power drive device |
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| CN2008101086625A CN101590815B (en) | 2008-05-30 | 2008-05-30 | Power drive device |
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| CN101590815A CN101590815A (en) | 2009-12-02 |
| CN101590815B true CN101590815B (en) | 2013-06-19 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107505487A (en) * | 2017-08-28 | 2017-12-22 | 浙江方圆电气设备检测有限公司 | A kind of method, system and the low voltage complete set of temperature rise experiment |
| CN107872119B (en) * | 2017-12-15 | 2023-01-24 | 东方电气(德阳)电动机技术有限责任公司 | Motor generator set capable of increasing load rotational inertia and control operation method thereof |
| CN108023523A (en) * | 2018-01-24 | 2018-05-11 | 成都雅骏新能源汽车科技股份有限公司 | A kind of electric vehicle motor controller main circuit |
| CN110920440A (en) * | 2019-12-26 | 2020-03-27 | 深圳威迈斯新能源股份有限公司 | Discharging method and discharging circuit for vehicle-mounted DCDC converter |
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| CN2195153Y (en) * | 1994-03-18 | 1995-04-19 | 程智勇 | HF pulse charger |
| CN1109554A (en) * | 1993-10-05 | 1995-10-04 | 本田技研工业株式会社 | Apparatus suitable for use in bayyeryless vhicle for reducing and controlling loads such as electrical components upon its start-up |
| JP2006019217A (en) * | 2004-07-05 | 2006-01-19 | Nissan Motor Co Ltd | Fuel cell power generator and its control method |
| CN2888722Y (en) * | 2006-01-20 | 2007-04-11 | 岑显荣 | Voltage rising device of wind power generator |
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2008
- 2008-05-30 CN CN2008101086625A patent/CN101590815B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1109554A (en) * | 1993-10-05 | 1995-10-04 | 本田技研工业株式会社 | Apparatus suitable for use in bayyeryless vhicle for reducing and controlling loads such as electrical components upon its start-up |
| CN2195153Y (en) * | 1994-03-18 | 1995-04-19 | 程智勇 | HF pulse charger |
| JP2006019217A (en) * | 2004-07-05 | 2006-01-19 | Nissan Motor Co Ltd | Fuel cell power generator and its control method |
| CN2888722Y (en) * | 2006-01-20 | 2007-04-11 | 岑显荣 | Voltage rising device of wind power generator |
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