CN102107608B - Power supply device for electric vehicle - Google Patents
Power supply device for electric vehicle Download PDFInfo
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- CN102107608B CN102107608B CN201010593406.7A CN201010593406A CN102107608B CN 102107608 B CN102107608 B CN 102107608B CN 201010593406 A CN201010593406 A CN 201010593406A CN 102107608 B CN102107608 B CN 102107608B
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Abstract
The invention provides a power supply device comprising a high voltage battery and a low voltage battery, wherein the low voltage battery is charged by the high voltage battery and the durability of the charging voltage for the low voltage battery directly applied to an auxiliary machine is prevented from decreasing. A voltage charging auxiliary battery (5) is provided when the voltage is lowered by a buck converter (6). The charging voltage conducted by a main switch (9) is applied to a lighting device (27) and a headlamp (25). The headlamp (25) is grounded by FET (11 or 11a). The current supplied by the headlamp (25) is limited to be the rated current by FET (11 or 11a) driven by a low duty ratio. The current flowing through the headlamp (25) can also be lowered by the voltage drop of a diode (D1) or (D2). FET (11 or 11 a) or the diode (D1, D2) can be installed on the substrate of PDU (45) or the buck converter (6).
Description
Technical field
The present invention relates to electric vehicles power supply device, in particular to the electric vehicles power supply device that the secondary cell of the low voltage of the high-tension main battery of the electrical motor (hreinafter referred to as ' motor ') by the drive source fed electrical power to as vehicle and power driven equipment (subsidiary engine) set on feeding electrical power to beyond motor vehicle is formed.
Background technology
In the vehicle of automotive bicycle, manned vehicle etc., the battery loading specified 12 volts is very common as power supply, but arrange the parts of electric of selection situation and along with vehicle high performance etc. and to be loaded with the vehicle of high-voltage battery also known.But, low rated voltage car light can not be made to light as in the past with high-voltage battery.Therefore, such as, in patent documentation 1, in order to light low rated voltage car light in the past with high-voltage battery, the change of the output duty cycle carrying out power converter is proposed, thus the vehicle lamp control device of the electric current flow through in adjustment car light.
[patent documentation 1] patent No. 3679700 publication (Japan)
Summary of the invention
In the power supply device of elec. vehicle being loaded with high-voltage battery, under the object stably to electric power such as supply such as the subsidiary engine of the vehicle of light device etc., sometimes as the low voltage secondary cell arranging subsidiary engine outside the high-voltage battery of main battery in addition.In this case, consider the output voltage of main battery to be carried out step-down by power converter, to the system that secondary cell charges with the voltage after this step-down.
In such a system, electric power is supplied to the subsidiary engine of the vehicle containing light device from secondary cell.But the voltage of secondary cell is the charging voltage applied from power converter, if so only supply the voltage from power converter to subsidiary engine, be then such as applied in the charging voltage higher than its rated voltage on light device.So, if by bright for light device charging electrical voltage point, be then considered to there is impact to the durability of light device, so expect to have countermeasure.
On the other hand, if consider the durability of light device and make the output voltage of power converter low, then problem secondary cell can not charged fully is produced.
The object of the invention is, for the problem of above-mentioned conventional art, provide and secondary cell can be charged fully, and the electric vehicles power supply device that the durability of the subsidiary engine of light device etc. declines can be prevented.
For realizing the 1st feature of the present invention of above-mentioned purpose be, at the motor for having the drive source as vehicle, at least comprise the elec. vehicle of the subsidiary engine of head lamp, there is high-tension main battery, and the secondary cell that described in its voltage ratio, main battery voltage is low, in the output voltage that described auxiliary machinery electric power is supplied described secondary cell and electric vehicles power supply device by the output voltage of the described main battery after the 1st power-converting device step-down, the output voltage step-down of main battery is generated charging valtage to described secondary cell by described 1st power-converting device, also comprise the 2nd power-converting device further for the output voltage of described secondary cell step-down being supplied to subsidiary engine.
In addition, the 2nd feature of the present invention is, described 2nd power-converting device is that dutycycle is controlled to limit and executes alive on-off element to described subsidiary engine, and described dutycycle can change according to the motoring condition of vehicle.
In addition, the 3rd feature of the present invention is, also comprises the vehicle speed detector device of speed detecting vehicle, when detecting that vehicle stops according to the speed of a motor vehicle detected, and value little when described dutycycle being switched to the traveling than vehicle.
In addition, 4th feature of the present invention is, elec. vehicle has motorcycle frame that vehicle is supported oneself and the motorcycle bracket switch of output detection signal when motorcycle frame is in non-reception position, when described motorcycle bracket switch output detection signal, described dutycycle is switched to zero.
In addition, the 5th feature of the present invention is, described 1st power-converting device is the value higher than the rated voltage of secondary cell to the charging valtage that described secondary cell supplies.
In addition, the 6th feature of the present invention is, described 2nd power-converting device is the diode with loss in voltage function.
In addition, 7th feature of the present invention is, described 1st power-converting device is the 1st step-down controller, described 2nd power-converting device is the 2nd step-down controller of the further step-down of output voltage making described 1st step-down controller, described 1st step-down controller exports the charging voltage of described secondary cell, described 2nd step-down controller is connected respectively to secondary cell and subsidiary engine, to export the driving voltage of described subsidiary engine.And in addition, the 8th feature of the present invention is, in conducting during main switch, during to described 1st power-converting device carries out action, the dutycycle with 100% drives described on-off element.
According to the present invention with the 1st feature, regardless of the driving alternation in weight of main battery, can from secondary cell (sub-battery) stably to subsidiary engine supply electric power.In addition, enough voltage can be applied in order to the secondary cell that charges, the durability of the subsidiary engine of light device etc. can be improved simultaneously.Especially, the life-span of the bulb (bulb) of head lamp (headlight) can be extended.
According to the present invention with the 2nd feature, can according to the state of vehicle, the illumination of adjustment subsidiary engine and light device.Such as, in the present invention with the 3rd feature, light device dim light can be made under vehicle is halted state, so the discharge time of battery can be extended.
According to the present invention with the 4th feature, when motorcycle frame is in non-reception position, subsidiary engine and light device can be extinguished and extend the discharge time of battery, and extending the operating range of elec. vehicle.
According to the present invention with the 5th feature, can charge secondary cell fully.According to the present invention with the 6th feature, can by the function of diode deboost, so different from use on-off element, control setup can not be needed, simplified structure.
According to the present invention with the 7th feature, two kinds of voltages after step-down can be taken out accurately.According to the present invention with the 8th feature, during starting to step-down controller to export from conducting main switch, from secondary cell, electric power is supplied to head lamp, during secondary cell supply electric power, the brightness of head lamp can be maintained with 100% dutycycle driving switch element.
Accompanying drawing explanation
Fig. 1 is the block scheme of the structure of the power supply device representing one embodiment of the present invention.
Fig. 2 is the lateral plan of the elec. vehicle of the power supply device being loaded with one embodiment of the present invention.
Fig. 3 is the diagram of circuit of the Duty ratio control of the electric current flow through in head lamp.
Fig. 4 is the block scheme of the main portion of the power supply device representing the 2nd embodiment of the present invention.
Fig. 5 is the block scheme of the main portion of the power supply device representing the 3rd embodiment of the present invention.
Fig. 6 is the block scheme of the main portion of the power supply device representing the 4th embodiment of the present invention.
Fig. 7 is the block scheme of the main portion of the power supply device representing the 5th embodiment of the present invention.
Label declaration
1... elec. vehicle, 2... front fork, 3... vehicle frame, 4... main battery, 5... secondary cell, 6... step-down controller (the 1st power-converting device), 6a... the 2nd step-down controller (the 2nd power-converting device), 7...BMU, 8... relay-set, 9... main switch, 10... general Denso equipment, 11, 11a...FET (the 2nd power-converting device), 14... automatic PTO Power Take Off relay, 15... throttle sensor, 16... angular transducer, 18... motor, 22... seat switch, 23... throttle sensor, 25... head lamp, 27... light device, 28... motorcycle bracket switch, D1, D2... diode (the 2nd power-converting device)
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings of one embodiment of the present invention.Fig. 2 is the left surface figure of the elec. vehicle of the power supply device being loaded with one embodiment of the present invention.Elec. vehicle 1 is the scooter type cart with sunken bed floor, and each structure division is by directly or be indirectly arranged on vehicle frame 3 by other components.First, vehicle frame 3 by being bonded on forward frame portion 32 that on head lamp 31, rear end extends downwards as the head lamp 31 of front portion, front end, from forward frame portion 32 to vehicle-body width direction about branch be partial to a pair main car frame part 33 that vehicle body rear extends and form from the rear frame portion 36 that main car frame part 33 extends to rear vehicle body respectively.
On head lamp 31, the front fork 2 of support front wheel WF is diverted and freely supports.Extend to top from front fork 2 and the top of the steering shaft 41 supported by head lamp 31, link the steering handwheel 46 with acceleration handle (accelgrip).On steering handwheel 46, arrange to detect and accelerate the pivot angle of handle and the throttle sensor 23 of accelerator open degree.
Connect the bracket 37 be made up of pipe (pipe) in the front portion of head lamp 31, on the leading section of this bracket 37, head lamp 25 is installed, luggage carrier 26 before being supported by bracket 37 is set above head lamp 25.
The bracket 34 extended to vehicle body rear is engaged in the main car frame part 33 of vehicle frame 3 and the zone line of rear frame portion 36, on this bracket 34, arrange the pivot 35 extended to vehicle-body width direction, swing arm 17 is swung up and down by this pivot 35 and is freely supported.In swing arm 17, be provided as the motor 18 in vehicular drive source, the output of motor 18 is passed to axletree of rear wheel 19, drives the trailing wheel WR be supported on axletree of rear wheel 19.The guard shield (housing) and the rear frame portion 36 that comprise axletree of rear wheel 19 are linked by rear suspension 20.
On the carrier 34, be arranged in parking the motorcycle frame 24 supporting vehicle body, motorcycle frame 24 has the motorcycle bracket switch 28 of the output detection signal when this motorcycle frame 24 is accommodated in assigned position.
In main car frame part 33, load the main battery 4 of the high potential (such as specified 72 volts) be made up of multiple battery pack (battery cell), the top tegmentum 40 of main battery 4 covers.On the front portion of main battery 4, link air leading-in conduit 38, the rear portion of main battery 4 arranges suction fan 39.By suction fan 39, air is directed to main battery 4 from air leading-in conduit 38, after this Air flow main battery, is discharged to vehicle body rear.
The socket 44 that can connect the plug 43 of the charging cable 42 extended from the charger (not shown) of main rechargeable battery 4 is set above rear frame portion 36.On rear frame portion 36, rear luggage carrier 29 and light device 27 are also set.
Cargo hold 50 is set between the rear frame portion 36 of pair of right and left, is being projected in the tank top 51 of bottom from this cargo hold 50, deposit the secondary cell 5 of the low voltage (such as, specified 12 volts) of being charged by main battery 4.In swing arm 17, the driven by power assembly (PDU:power drive unit) 45 controlled motor 18 is set.
Above cargo hold 50, the operator's seat 21 doubling as the lid of cargo hold 50 is set, on driver's seat 21, is arranged on when chaufeur is taken a seat and carries out the seat switch 22 that action also exports signal of taking a seat.
Fig. 1 is the block scheme of the system architecture representing power supply device.Power supply device comprises: main battery 4; Secondary cell 5; As the DC-DC step-down controller (hreinafter referred to as ' step-down controller ') 6 of the 1st power-converting device; PDU45; And the battery management assembly (BMU) 7 arranged in main battery 4.PDU45 has the inverter circuit 451 be made up of the on-off element of FET or IGBT etc., and the control unit 452 of control inverter circuit 451.Control unit 452 comprises CAN communication plate (board).
Main battery 4 such as comprises the battery module of the lithium ion of 3 groups 24 volts, forms the BMU17 and battery block that can be made up of LSI.Main battery 4 via the adaptor union (contactor) 81 and precharge adaptor union 82 that comprise connection parallel with one another relay-set 8 and be electrically connected to the input end of inverter circuit 451 by power circuit L1, L2.The three-phase alternating current mouth of inverter circuit 451 is connected to motor 18 by three-phase AC line.
Power circuit L1, L2 are connected to the input end of step-down controller 6, and are connected to the socket 44 of charging.Step-down controller 6 has high-tension input (such as, the voltage of 72 volts of i.e. main batterys 4) is transformed to low voltage (such as, the charging valtage of secondary cell 5) and the function exported.Secondary cell 5 is control power supplys of control unit 452 and subsidiary engine, is made up of 12 volts of batteries, such as, with 14.3 volts of chargings.
The output of step-down controller 6 is connected to constant system circuit L3, and constant system circuit L3 is connected to BMU7 and secondary cell 5.In addition, constant system circuit L3 is connected to main switch 9, and main switch 9, by main switch system line L4, is connected to control unit 452, BMU7 and light device (taillight) 27, head lamp 25 and general Denso equipment 10.In main switch system line L4, automatic PTO Power Take Off relay 14 is set.
Head lamp 25 is grounded by the on-off element (FET) 11 arranged in control unit 452.On the control unit 452 of PDU45, connect the angular transducer 16 of the anglec of rotation detecting motor 18, throttle sensor 23, seat switch 22 and motorcycle bracket switch 28.
Between BMU7 and control unit 452, CAN communication circuit 12 is set.In addition, between the adaptor union 81 and precharge adaptor union 82 of BMU7, relay-set 8, difference signalization line 48,49, transmits the opening and closing instruction of the adaptor union 81 and precharge adaptor union 82 exported from BMU7.
Charge with socket 44 can form with linking with the charging plug 43 being connected to its input end and can being connected the mouth of the charger 41 of commercial ac power source.Charger 41 can generate accessory feed voltage, this accessory feed with circuit L6 be connected to the control system circuit L5 will be connected between BMU7 with control unit 452.
In said structure, when main rechargeable battery 4, charging socket 44 connects charging plug 43, attaching plug 13 is connected to not shown AC100 and lies prostrate socket.So, when the not shown charging arranged is started switch conduction, by the circuit L6 of accessory feed voltage, accessory feed voltage (12 volts) is applied to control system circuit L5 from charger 41 in charger 41.
On the control unit 452 that accessory feed voltage is applied to PDU45 by control system circuit L5 and BMU7, control unit 452 starts action when being applied in accessory feed voltage.Such as, communicated by CAN communication with BMU7, adaptor union control signal is sent to BMU7.BMU7 responds adaptor union control signal and by precharge adaptor union 82 and adaptor union 81 conducting successively.Be flow through rush current in order to prevent because of adaptor union 81 conducting suddenly by precharge adaptor union 82 than the first conducting of adaptor union 81, supply by the adjusted electric current of resistance R from main battery 4.Thus, supply electric current from charger 41 by power circuit L1, L2, main battery 4 is charged.In CAN communication, the overcharge signal of main battery etc. are supplied to control unit 452 from BMU7.
In addition, PDU45 responds the input of boosting voltage and step-down controller 6 is started, so the voltage be connected on constant system circuit L3 by step-down controller 6 step-down.By secondary cell 5 with the voltage (14.3 volts) that this constant system circuit L3 connects charging.
When making the vehicle being loaded with the main battery 4 charged travel, first, by main switch conducting.So be applied in the voltage of secondary cell 5 on main switch system line L4, control unit 452 is by this voltage driven.In addition, the conducting of automatic PTO Power Take Off relay 14, the voltage of secondary cell 5, via main switch system line L4, is applied on the subsidiary engine of light device 27, head lamp 25 and general Denso equipment 10 etc.But head lamp 25 is grounded by the FET11 arranged in control unit 452, so the electric current be controlled according to the ON time dutycycle of this FET11 flows through head lamp 25.The control of the ON time dutycycle of FET is discussed further below.
Cranking signal, when being applied in the voltage from secondary cell 5 by main switch 9, is input to step-down controller 6 by control unit 452.Step-down controller 6 responds this cranking signal and starts action, and the voltage step-down of main battery 4 is outputted to constant system circuit L3.The voltage of the step-down controller 6 of step-down is the voltage (such as 14.3 volts) in order to the abundance of being charged by secondary cell 5, and this voltage, except being applied to secondary cell 5, is also applied on head lamp 25, light device 27 and general Denso equipment.
By under the state by main switch 9 conducting, carry out throttle sensor 23 open operation time, seat switch 22 and motorcycle bracket switch 28 are for connecting as prerequisite, namely be landed on seat 21 with chaufeur, it is condition that motorcycle frame rises to reception position, and inverter circuit 451 is carried out PWM control and started by electric power to be supplied to motor 18 by control unit 452.Form the switching timing of on-off element of inverter circuit 451, the rotational angle of the motor 18 produced according to angular transducer 16 and determining.Use the rotational angle detected by angular transducer 16, control unit 452 can calculate the speed of a motor vehicle.Therefore, angular transducer 16 also has the function of the speed detection sensor as the vehicle driven by motor 18.PWM controls lower Duty ratio control, carries out according to the detection aperture of throttle sensor 23 generation.
Little at the detection opening ratio specified value of throttle sensor 23, or when at least one party of seat switch 22 and motorcycle bracket switch 25 is shutoff, control unit 452 makes the dutycycle indicated inverter circuit 451 be zero, thus stop the driving of motor 18.
When main switch 9 is turned off, turn off at PTO Power Take Off relay 14 automatic after specified time, stop the power supply to head lamp 25 and other light devices 27 and general Denso equipment 10 etc.
Below, the control electric current flow through in head lamp 25 being carried out the FET11 limited is described.Fig. 3 represents in power supply device, about the diagram of circuit of the action of the Duty ratio control of head lamp 25.In the figure, in step sl, main switch 9 whether conducting is differentiated.If be judged as main switch 9 conducting, then proceed to step S2, PDU45 is started.In step s3, automatic PTO Power Take Off relay 14 is switched on.In step s 4 which, the FET11 conducting as the dimming circuitry of the 2nd power-converting device will be formed.That is, FET11 is driven with 100% dutycycle.Owing to needing the time from main switch 9 conducting being exported to step-down controller 6, so supply electric power from secondary cell 5 pairs of head lamps 25 during this period.Therefore, so just during supplying electric power from secondary cell 5, FET can be driven with 100% dutycycle and maintains the brightness of head lamp 25.
In step s 5, judge whether BMU7 and step-down controller 6 start to start.This judgement can be undertaken by the output voltage in the elapsed time after main switch 9 conducting or step-down controller 6 being reached specified value (14.3 volts) etc.
If step S5 is the judgement of affirmative, then proceed to step S6, the driving dutycycle of FET11 is reduced, such as, be set to 90% and the electric current that flows through in head lamp 25 is declined.
In the step s 7, judge whether the rotating speed of motor 18 is 0rpm, and namely whether motor 18 stops.When being judged as that motor 18 stops, proceeding to step S8, the dutycycle of FET11 being reduced to lower value (such as 70%) and further dim light.When motor 18 stops, because can be judged as that vehicle is in stopping, even if by also passable for head lamp 25 dim light.
When step S7 is negative, namely when judging that motor 18 does not stop, proceeds to step S9, judging whether motorcycle bracket switch 28 turns off, and namely whether motorcycle frame 24 exposes.When motorcycle frame 24 exposes, even if the rotating speed of motor 18 is not 0rpm, also proceeds to step S10 and the dutycycle of FET11 be set to low value (such as 70%).Because when exposing motorcycle frame 24, also can be judged as that vehicle stops.
Further, when judging that vehicle stops, not only by head lamp 25 dim light, can also being extinguished.In addition, in the step s 7, replace whether the rotating speed judging motor 18 is 0rpm, also according to the speed of a motor vehicle, can judge whether vehicle stops.Such as, below 4km/ hour, whether judge whether dutycycle to be reduced to 70% by the speed of a motor vehicle.
Like this, the electric current supplied head lamp 25 by restriction, even be applied above the structure of the voltage of rated value on the head lamp 25 that rated value is little, also can be maintained the strong durability of head lamp 25 and head lamp bulb is not replaced by the large bulb of rated value.
The FET11 of electric current flow through in restriction head lamp 25, for as the step-down controller 6 of the 1st power-converting device high-voltage variable being changed to charging valtage, has the function as the 2nd power-converting device.Further, be installed on the existing substrate in PDU45 due to FET11, so can packaging effects be improved.
FET11 as the 2nd power-converting device is not limited to be arranged in PDU45, such as, also can be arranged in step-down controller 6.Fig. 4 is the main portion block scheme represented being arranged on the power supply device of the example in step-down controller 6 as the FET11 of the 2nd power-converting device, and the label identical with Fig. 1 represents identical or equal part.In the diagram, on the substrate encapsulating the element forming step-down controller 6, FET11a is installed.Then, the dimming signal of the dutycycle controlling this FET11a is supplied from the control unit 452 of PDU45.By dimming signal, the process shown in the process of the dutycycle of control FET11a and the diagram of circuit of Fig. 3 is identical.
2nd power-converting device is not limited to FET, such as, even if use diode also can realize.Fig. 5 is the figure of the 3rd embodiment representing the 2nd power-converting device, and the label identical with Fig. 1 represents identical or equal part.In the 3rd embodiment, replace FET11, by the diode D1 arranged in PDU45 by head lamp 25 ground connection.In this example embodiment, the loss in voltage caused due to diode D1 is estimated as about 1 volt, so offset with this loss in voltage, the electric current flow through in head lamp 25 can be made to reduce.
Further, this diode D1 is not limited to be arranged in PDU45, such as, also can be arranged in step-down controller 6.Fig. 6 is the main portion block scheme of the power supply device of the 4th embodiment representing the 2nd power-converting device, and the label identical with Fig. 1 represents identical or equal part.In figure 6, on the substrate encapsulating the element forming step-down controller 6, diode D2 is installed.By this example, also same with the embodiment shown in Fig. 5, the electric current flow through in head lamp 25 can be made to reduce by the loss in voltage of diode D2.
Below, the 5th embodiment of the 2nd power-converting device is described.Fig. 7 is the main portion block scheme of the power supply device of the 5th embodiment representing the 2nd power-converting device, and the label identical with Fig. 1 represents identical or equal part.In the figure 7, in the substrate B installing step-down controller 6, another step-down controller 6a is also set.The output of step-down controller 6 is connected to constant system circuit L3, and is connected to the input end of step-down controller 6a.So step-down controller 6a makes the voltage (14.3 volts) inputted from step-down controller 6 be depressured to the voltage (such as 12 volts) of the rated voltage being equivalent to head lamp 25 further and export.The output of step-down controller 6a is connected to head lamp 25 and other light device 27.
As mentioned above, according to each embodiment, the voltage that head lamp 25 applies is lowered by the rated voltage of head lamp 25, even if so the charging valtage of secondary cell 5 is higher than the rated voltage of head lamp 25, also can avoid having an impact to the durability of head lamp 25.
Have again, in the embodiment shown in Fig. 1, Fig. 4 ~ Fig. 6, define the structure of the applying voltage drop made head lamp 25, but embodiment as shown in Figure 7, for other subsidiary engine of light device 27 grade, similarly also voltage or electric current can be reduced by the 2nd power-converting device.
Claims (8)
1. an electric vehicles power supply device, it is characterized in that, at the motor (18) for having as the drive source of vehicle (1), at least comprise the elec. vehicle (1) of the subsidiary engine of head lamp (25), there is high-tension main battery (4), and the secondary cell (5) that main battery (4) voltage described in its voltage ratio is low, the output voltage of described secondary cell (5) is supplied to described auxiliary machinery electric power and passes through in the electric vehicles power supply device of output voltage of the described main battery (4) after the 1st power-converting device (6) step-down,
The output voltage step-down of main battery (4) is generated charging valtage to described secondary cell (5) by described 1st power-converting device (6),
Also comprise the 2nd power-converting device (11,11a, D1, D2,6a) the further step-down of output voltage of described secondary cell (5) being supplied to subsidiary engine.
2. electric vehicles power supply device as claimed in claim 1, is characterized in that,
Described 2nd power-converting device is that dutycycle is controlled to limit and executes alive on-off element (11,11a) to described subsidiary engine,
Described dutycycle can change according to the motoring condition of vehicle (1).
3. electric vehicles power supply device as claimed in claim 2, is characterized in that,
Also comprise the vehicle speed detector device (16) of the speed detecting vehicle (1),
When detecting that vehicle (1) stops according to the speed of a motor vehicle that detecting, value little when described dutycycle being switched to the traveling than vehicle (1).
4. electric vehicles power supply device as claimed in claim 2, is characterized in that,
Elec. vehicle has motorcycle frame (24) that vehicle (1) is supported oneself and the motorcycle bracket switch (28) of output detection signal when motorcycle frame (24) is in non-reception position,
When described motorcycle bracket switch (28) output detection signal, described dutycycle is switched to zero.
5. electric vehicles power supply device according to any one of claims 1 to 4, is characterized in that,
Described 1st power-converting device (6) is the value higher than the rated voltage of secondary cell (5) to the charging valtage that described secondary cell (5) supplies.
6. electric vehicles power supply device as claimed in claim 1, is characterized in that,
Described 2nd power-converting device is the diode (D1, D2) with loss in voltage function.
7. electric vehicles power supply device as claimed in claim 1, is characterized in that,
Described 1st power-converting device (6) is the 1st step-down controller, and described 2nd power-converting device (6a) is the 2nd step-down controller of the further step-down of output voltage making described 1st step-down controller,
Described 1st step-down controller (6) exports the charging voltage of described secondary cell (5), described 2nd step-down controller (6a) is connected respectively to secondary cell (5) and subsidiary engine, to export the driving voltage of described subsidiary engine.
8. electric vehicles power supply device as claimed in claim 2, is characterized in that,
In conducting time main switch (9), during to described 1st power-converting device (6) carries out action, the dutycycle with 100% drives described on-off element (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009292330A JP5219992B2 (en) | 2009-12-24 | 2009-12-24 | Electric vehicle power supply device |
| JP292330/09 | 2009-12-24 |
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| CN102107608A CN102107608A (en) | 2011-06-29 |
| CN102107608B true CN102107608B (en) | 2015-06-17 |
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| CN201010593406.7A Active CN102107608B (en) | 2009-12-24 | 2010-12-17 | Power supply device for electric vehicle |
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| JP (1) | JP5219992B2 (en) |
| CN (1) | CN102107608B (en) |
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| JP5759012B2 (en) * | 2011-10-26 | 2015-08-05 | 川崎重工業株式会社 | Motorcycle and driving method of the motorcycle |
| US9463695B2 (en) | 2011-10-28 | 2016-10-11 | Kawasaki Jukogyo Kabushiki Kaisha | Straddle electric vehicle |
| JP6245947B2 (en) | 2013-11-06 | 2017-12-13 | ヤマハ発動機株式会社 | Vehicle and battery pack |
| CN104843110A (en) * | 2015-04-07 | 2015-08-19 | 江苏淮海新能源车辆有限公司 | Novel electro-tricycle converter |
| TWI687024B (en) * | 2018-01-30 | 2020-03-01 | 光陽工業股份有限公司 | Power supply system for passive parts of vehicles |
| CN108839581B (en) * | 2018-06-29 | 2021-06-22 | 北京新能源汽车股份有限公司 | Power supply control method, device and equipment for electric automobile |
| JP2020145850A (en) * | 2019-03-06 | 2020-09-10 | トヨタ自動車株式会社 | Electrical power system for vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP5219992B2 (en) | 2013-06-26 |
| JP2011131701A (en) | 2011-07-07 |
| CN102107608A (en) | 2011-06-29 |
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