CN102107608A - Power supply device for electric vehicle - Google Patents
Power supply device for electric vehicle Download PDFInfo
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- CN102107608A CN102107608A CN2010105934067A CN201010593406A CN102107608A CN 102107608 A CN102107608 A CN 102107608A CN 2010105934067 A CN2010105934067 A CN 2010105934067A CN 201010593406 A CN201010593406 A CN 201010593406A CN 102107608 A CN102107608 A CN 102107608A
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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 the electric vehicles power supply device, be particularly related to by the high-tension main battery that feeds electrical power to electrical motor as the drive source of vehicle (below, abbreviate ' motor ' as) and feed electrical power to the electric vehicles power supply device that the secondary cell of the low voltage of driven by power equipment (subsidiary engine) set on the vehicle beyond the motor constitutes.
Background technology
In the vehicle of automotive bicycle, manned vehicle etc., loading specified 12 volts battery is very common as power supply, but be provided with selection parts of electric situation and along with high performance of vehicle etc. and to have loaded the vehicle of high-voltage battery also known.But, low rated voltage car light is lighted as in the past with high-voltage battery.Therefore, for example, in patent documentation 1,, proposed to carry out the change of the output duty cycle of power converter, thereby adjusted the vehicle lamp control device of the electric current that flows through in the car light in order to light low rated voltage car light in the past with high-voltage battery.
[patent documentation 1] No. 3679700 communique of patent (Japan)
Summary of the invention
In the power supply device of the elec. vehicle that has loaded high-voltage battery, under purpose stably, outside as the high-voltage battery of main battery, the low voltage secondary cell that subsidiary engine is used is set in addition sometimes to the subsidiary engine supply capability of the vehicle of light device etc.In this case, consider the output voltage of main battery is carried out step-down by power converter, the voltage of secondary cell after with this step-down is carried out electrically-charged system.
In such system, electric power is supplied to the subsidiary engine of the vehicle that has comprised the light device from secondary cell.But the charging voltage of the voltage of secondary cell for applying from power converter is so if only to the voltage of subsidiary engine supply from power converter, then for example be applied in the charging voltage higher than its rated voltage on the light device.So,, then be considered to influential, so expect to have countermeasure to the durability of light device if the light device is bright with electrical voltage point with charging.
On the other hand, make the output voltage of power converter low if consider the durability of light device, then producing can not be with the electrically-charged fully problem of secondary cell.
The objective of the invention is,, provide and secondary cell can be charged fully, and can prevent the electric vehicles power supply device that the durability of the subsidiary engine of light device etc. descends for the problem of above-mentioned conventional art.
Be used to realize that the 1st feature of the present invention of above-mentioned purpose is, at the motor that is used to have as the drive source of vehicle, at least the elec. vehicle that comprises the subsidiary engine of head lamp, has high-tension main battery, with and the low secondary cell of the described main battery voltage of voltage ratio, described subsidiary engine electric power is supplied with in the electric vehicles power supply device of the output voltage of described secondary cell and the output voltage by the described main battery after the 1st power-converting device step-down, described the 1st power-converting device generates charging valtage with the output voltage step-down of main battery to described secondary cell, also comprises the 2nd power-converting device that the further step-down of the output voltage of described secondary cell is supplied to subsidiary engine.
In addition, the 2nd feature of the present invention is, described the 2nd power-converting device is that dutycycle is controlled with the on-off element that apply voltage of restriction 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 the speed that detects vehicle, detecting vehicle according to the detected speed of a motor vehicle when stopping, little value when switching to described dutycycle than the travelling of vehicle.
In addition, the 4th feature of the present invention is, elec. vehicle have make holder vehicle frame that vehicle supports oneself and when the holder vehicle frame is in non-reception position the holder vehicle frame switch of output detection signal, when described holder vehicle frame switch output detection signal, described dutycycle is switched to zero.
In addition, the 5th feature of the present invention is that the charging valtage that described the 1st power-converting device is supplied with described secondary cell is the value higher than the rated voltage of secondary cell.
In addition, the 6th feature of the present invention is that described the 2nd power-converting device is the diode with loss in voltage function.
In addition, the 7th feature of the present invention is, described the 1st power-converting device is the 1st step-down controller, described the 2nd power-converting device is the 2nd step-down controller that makes the further step-down of output voltage of described the 1st step-down controller, described the 1st step-down controller is exported the charging voltage of described secondary cell, described the 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, till moving to described the 1st power-converting device during, 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 be from secondary cell (sub-battery) stably to the subsidiary engine supply capability.In addition, enough voltage can be applied, the durability of the subsidiary engine of light device etc. can be improved simultaneously in order to charge secondary cell.Especially, can prolong the life-span of the bulb (bulb) of head lamp (headlight).
According to the present invention with the 2nd feature, can be according to the state of vehicle, adjusting subsidiary engine is the illumination of light device.For example, in the present invention, can be to make light device dim light under the halted state at vehicle, so can prolong the discharge time of battery with the 3rd feature.
According to the present invention with the 4th feature, can be when being in non-reception position at the holder vehicle frame, be that the light device extinguishes and prolongs discharge time of battery with subsidiary engine, and prolong the operating range of elec. vehicle.
According to the present invention with the 5th feature, secondary cell fully can charge.According to the present invention with the 6th feature, function that can be by diode and deboost, so with use on-off element different, can not need control setup, simplified structure.
According to the present invention, can take out two kinds of voltages after the step-down accurately with the 7th feature.According to the present invention with the 8th feature, in view of during till beginning to export from conducting main switch to step-down controller from secondary cell to the head lamp supply capability, can keep the brightness of head lamp with 100% dutycycle driving switch element during the secondary cell supply capability.
Description of drawings
Fig. 1 is the block scheme of structure of the power supply device of expression one embodiment of the present invention.
Fig. 2 is the lateral plan of elec. vehicle that has loaded the power supply device of one embodiment of the present invention.
Fig. 3 is the diagram of circuit of the dutycycle control of the electric current that flows through in the head lamp.
Fig. 4 is the block scheme of main portion of the power supply device of expression the 2nd embodiment of the present invention.
Fig. 5 is the block scheme of main portion of the power supply device of expression the 3rd embodiment of the present invention.
Fig. 6 is the block scheme of main portion of the power supply device of expression the 4th embodiment of the present invention.
Fig. 7 is the block scheme of main portion of the power supply device of expression 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... SELF CL power supply relay, 15... throttle sensor, 16... angular transducer, 18... motor, 22... seat switch, 23... throttle sensor, 25... head lamp, 27... light device, 28... holder vehicle frame switch, D1, D2... diode (the 2nd power-converting device)
The specific embodiment
Below, with reference to the description of drawings one embodiment of the present invention.Fig. 2 is the left surface figure of elec. vehicle that has loaded the power supply device of one embodiment of the present invention.Elec. vehicle 1 is the scooter type cart with sunken bed floor, and each structure division directly or by other members is installed on the vehicle frame 3 indirectly.At first, vehicle frame 3 be bonded on the head lamp 31 by head lamp 31, front end as the front portion and the front vehicle frame part 32 that extend downwards the rear end, from front vehicle frame part 32 to branch and be partial to a pair of main car frame part 33 that the vehicle body rear prolongs and constitute respectively about vehicle-body width direction from the main car frame part 33 back vehicle frame part 36 that the rear prolongs on vehicle body.
On head lamp 31, the front fork 2 of supporting front-wheel WF is diverted supporting freely.Extending to top from front fork 2 and, linking steering handwheel 46 with acceleration handle (accelgrip) by the top of the steering shaft 41 of head lamp 31 supporting.On steering handwheel 46, being provided with and detecting the pivot angle that quickens handle is the throttle sensor 23 of accelerator open degree.
Front portion at head lamp 31 connects the carriage 37 that is made of pipe (pipe), on the leading section of this carriage 37, head lamp 25 is installed, and the preceding luggage carrier 26 by carriage 37 supportings is set above head lamp 25.
In the zone line of the main car frame part 33 of vehicle frame 3 and back vehicle frame part 36, engage the carriage 34 that prolongs to the vehicle body rear, on this carriage 34, the pivot 35 that prolongs to vehicle-body width direction is set, and swing arm 17 is swung up and down supporting freely by this pivot 35.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 that is supported on the axletree of rear wheel 19.The guard shield (housing) and the back vehicle frame part 36 that comprise axletree of rear wheel 19 link by rear suspension 20.
On carriage 34, be arranged on the holder vehicle frame 24 of supporting vehicle body in the parking, holder vehicle frame 24 has the holder vehicle frame switch 28 of output detection signal when this holder vehicle frame 24 is accommodated in assigned position.
On main car frame part 33, load the main battery 4 of the high potential (for example specified 72 volts) that constitutes by a plurality of 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, suction fan 39 is set on the rear portion of main battery 4.By suction fan 39, air is directed to main battery 4 from air leading-in conduit 38, this air cooling behind the main battery, be discharged to the vehicle body rear.
The socket 44 of the plug 43 that can connect the charging cable 42 that prolongs from the charger (not shown) of charging main battery 4 is set above back vehicle frame part 36.On back vehicle frame part 36, back luggage carrier 29 and light device 27 are set also.
Between the back vehicle frame part 36 of pair of right and left, cargo hold 50 is set, is being projected into the tank top 51 of bottom, deposit secondary cell 5 by main battery 4 electrically-charged low voltages (for example, specified 12 volts) from this cargo hold 50.In swing arm 17, the driven by power assembly (PDU:power drive unit) 45 that motor 18 is controlled is set.
Above cargo hold 50, the operator's seat 21 of the lid of double as cargo hold 50 is set, on driver's seat 21, be arranged on and move and export the seat switch 22 of signal of taking a seat when chaufeur is taken a seat.
Fig. 1 is the block scheme of the system architecture of expression power supply device.Power supply device comprises: main battery 4; Secondary cell 5; As the DC-DC step-down controller of the 1st power-converting device (below, abbreviate ' step-down controller ' as) 6; PDU45; And the battery management assembly (BMU) 7 that is provided with in the main battery 4.PDU45 has the inverter circuit 451 that the on-off element by FET or IGBT etc. constitutes, and the control unit 452 of control inverter circuit 451.Control unit 452 comprises CAN communication plate (board).
Main battery 4 for example comprises the battery module of 3 groups 24 volts lithium ion, BMU17 and battery block that formation can be made of LSI.Main battery 4 is via the relay-set 8 that comprises bonded assembly adaptor union parallel with one another (contactor) 81 and precharge adaptor union 82 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 usefulness.Step-down controller 6 has the function that high-tension input (for example, 72 volts is the voltage of main battery 4) is transformed to low voltage (for example, the charging valtage of secondary cell 5) and output.Secondary cell 5 is control power supplys of control unit 452 and subsidiary engine, is made of 12 volts of batteries, for example 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 is connected to control unit 452, BMU7 and light device (taillight) 27, head lamp 25 and general Denso equipment 10 by main switch system line L4.Among the main switch system line L4, SELF CL power supply relay 14 is set.
Between BMU7 and control unit 452, CAN communication line 12 is set.In addition, signalization line 48,49 respectively between the adaptor union 81 of BMU7, relay-set 8 and precharge adaptor union 82, transmission is from the switching instruction of the adaptor union 81 and the precharge adaptor union 82 of BMU7 output.
The socket 44 of charging usefulness be connected to the charging plug 43 of mouth that its input end can be connected the charger 41 of commercial ac power source and can constitute with linking.Charger 41 can generate accessory feed voltage, and the circuit L6 that this accessory feed is used is connected to BMU7 and 452 bonded assembly control system of control unit circuit L5.
In said structure, when charging main battery 4, on charging socket 44, connect charging plug 43, attaching plug 13 is connected to not shown AC100 volt socket.So when the not shown charging that is provided with in the charger 41 was begun switch conduction, the circuit L6 that uses by accessory feed voltage from charger 41 applied accessory feed voltage (12 volts) to control system circuit L5.
Accessory feed voltage is applied to by control system circuit L5 on the control unit 452 and BMU7 of PDU45, and control unit 452 begins action when being applied in accessory feed voltage.For example, communicating by letter by CAN with BMU7 communicates, and the adaptor union control signal is sent to BMU7.BMU7 response adaptor union control signal and with precharge adaptor union 82 and adaptor union 81 conducting successively.Is to flow through rush current in order to prevent because of adaptor union 81 unexpected conductings with precharge adaptor union 82 than adaptor union 81 first conductings, supplies with the electric current of regulating by resistance R from main battery 4.Thus, by power circuit L1, L2 supplying electric current, main battery 4 is recharged from charger 41.In CAN communication, the overcharge signal of main battery etc. supplies to control unit 452 from BMU7.
In addition, the input of PDU45 response boosting voltage and make step-down controller 6 startings is so the voltage that has been connected on constant system circuit L3 by step-down controller 6 step-downs.Secondary cell 5 is gone up bonded assembly voltage (14.3 volts) charging with this constant system circuit L3.
Under the situation that makes the vehicle ' of having loaded the main battery 4 that has charged, at first, with the main switch conducting.So, on main switch system line L4, being applied in the voltage of secondary cell 5, control unit 452 is driven by this voltage.In addition, 14 conductings of SELF CL power supply relay, the voltage of secondary cell 5 is applied on the subsidiary engine of light device 27, head lamp 25 and general Denso equipment 10 etc. via main switch system line L4.But head lamp 25 is grounded by the FET11 that are provided with in the control unit 452, so the electric current that is controlled according to the ON time dutycycle of this FET11 flows through head lamp 25.The further back of the control of the ON time dutycycle of FET is discussed.
Will with main switch 9 conductings state under, when carrying out the ON operation of throttle sensor 23, seat switch 22 and holder vehicle frame switch 28 are for connecting as prerequisite, promptly be landed on the seat 21 with chaufeur, it is condition that the holder vehicle frame rises to reception position, and control unit 452 carries out inverter circuit 451 PWM control and electric power is begun to supply to motor 18.Constitute the switching timing of the on-off element of inverter circuit 451, the rotational angle of the motor 18 that produces according to angular transducer 16 determines.Use is by angular transducer 16 detected rotational angles, and control unit 452 can calculate the speed of a motor vehicle.Therefore, angular transducer 16 also has the function as the speed detection sensor of the vehicle that is driven by motor 18.Dutycycle control under the PWM control is carried out according to the detection aperture that throttle sensor 23 produces.
Detection opening ratio specified value at throttle sensor 23 is little, or at least one side of seat switch 22 and holder vehicle frame switch 25 is when turn-offing, and it is zero that control unit 452 makes the dutycycle to inverter circuit 451 indications, thereby stops the driving of motor 18.
When main switch 9 is turn-offed, turn-offing, stopping power supply head lamp 25 and other light devices 27 and general Denso equipment 10 etc. through SELF CL power supply relay behind the specified time 14.
Below, the control of the FET11 that the electric current that will flow through in the head lamp 25 limits is described.Fig. 3 is illustrated in the power supply device, the diagram of circuit of the action of the dutycycle control of relevant head lamp 25.In the figure, in step S1, differentiate whether conducting of main switch 9.If be judged as main switch 9 conductings, then proceed to step S2, PDU45 is started.In step S3, SELF CL power supply relay 14 is switched on.In step S4, with the FET11 conducting that constitutes as the dimming circuitry of the 2nd power-converting device.That is, FET11 is driven with 100% dutycycle.Because from main switch 9 conductings to step-down controller 6 being begun need the time till the output, so during this period from 5 pairs of head lamp 25 supply capabilities of secondary cell.Therefore, so just can FET be kept the brightness of head lamp 25 with the driving of 100% dutycycle during secondary cell 5 supply capabilities.
In step S5, judge whether BMU7 and step-down controller 6 begin starting.This judgement can reach specified value (14.3 volts) by the output voltage with elapsed time after main switch 9 conductings or step-down controller 6 and wait and carry out.
If step S5 is sure judgement, then proceed to step S6, the driving dutycycle of FET11 is reduced, for example be made as 90% and the electric current that flows through in the head lamp 25 is descended.
In step S7, judge whether the rotating speed of motor 18 is 0rpm, and promptly whether motor 18 stops.Being judged as under the situation that motor 18 stops, proceeding to step S8, the dutycycle of FET11 is reduced to lower value (for example 70%) and further dim light.Under the situation that motor 18 stops, being in and stopping because can being judged as vehicle, even head lamp 25 dim lights also can.
Step S7 for the situation of negating under, promptly, proceed to step S9 judging under the situation that motor 18 do not stop, judging whether holder vehicle frame switch 28 turn-offs, and promptly asks vehicle frame 24 whether to expose.Under holder vehicle frame 24 situation about exposing,, also proceed to step S10 and the dutycycle of FET11 is made as low value (for example 70%) even the rotating speed of motor 18 is not 0rpm.Because exposing under the situation of holding in the palm vehicle frame 24, also can be judged as vehicle and stop.
Have again,, not only, it can also be extinguished head lamp 25 dim lights judging under the situation that vehicle stops.In addition, in step S7, replace to judge whether the rotating speed of motor 18 is 0rpm, also can judge whether vehicle stops according to the speed of a motor vehicle.For example, by the speed of a motor vehicle whether 4km/ hour with under judge whether dutycycle is reduced to 70%.
Like this, the electric current of head lamp 25 being supplied with by restriction even apply the structure of the voltage of overrate on the little head lamp 25 of rated value, also can be kept the strong durability of head lamp 25 and head lamp bulb is not replaced by the big bulb of rated value.
The FET11 of the electric current that flows through in the restriction head lamp 25, the step-down controller 6 for as the 1st power-converting device that high-voltage variable is changed to charging valtage has the function as the 2nd power-converting device.Have again, because FET11 is installed on the interior existing substrate of PDU45, so can improve encapsulation.
FET11 as the 2nd power-converting device is not limited to be arranged among the PDU45, for example also can be arranged in the step-down controller 6.Fig. 4 is that expression will be arranged on the main portion block scheme of the power supply device of the example in the step-down controller 6 as the FET11 of the 2nd power-converting device, and the label identical with Fig. 1 represented identical or equal part.In Fig. 4, on the substrate that has encapsulated the element that constitutes step-down controller 6, FET11a is installed.Then, supply with the dim light signal of the dutycycle of this FET11a of control from the control unit 452 of PDU45.Control the processing shown in the diagram of circuit of processing and Fig. 3 of dutycycle of FET11a by the dim light signal identical.
The 2nd power-converting device is not limited to FET, for example, even use diode also can realize.Fig. 5 is the figure of the 3rd embodiment of expression the 2nd power-converting device, and the label identical with Fig. 1 represented identical or equal part.In the 3rd embodiment, replace FET11, by the diode D1 that is provided with among the PDU45 with head lamp 25 ground connection.In this example,,, the electric current that flows through in the head lamp 25 is reduced so offset with this loss in voltage because the loss in voltage that diode D1 causes is estimated as about 1 volt.
Have, this diode D1 is not limited to be arranged among the PDU45, for example also can be arranged in the step-down controller 6 again.Fig. 6 is the main portion block scheme of power supply device of the 4th embodiment of expression the 2nd power-converting device, and the label identical with Fig. 1 represented identical or equal part.In Fig. 6, on the substrate that has encapsulated the element that constitutes step-down controller 6, diode D2 is installed.By this example, also same with embodiment shown in Figure 5, the electric current that flows through in the head lamp 25 is reduced.
Below, the 5th embodiment of the 2nd power-converting device is described.Fig. 7 is the main portion block scheme of power supply device of the 5th embodiment of expression the 2nd power-converting device, and the label identical with Fig. 1 represented identical or equal part.In Fig. 7, in the substrate B that step-down controller 6 is installed, another step-down controller 6a is set also.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 voltage (for example 12 volts) and the output that further is depressured to the rated voltage that is equivalent to head lamp 25 from the voltage (14.3 volts) of step-down controller 6 inputs.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 is applied is lowered by the rated voltage of head lamp 25, so even the charging valtage of secondary cell 5 than the rated voltage height of head lamp 25, also can avoid the durability of head lamp 25 is exerted an influence.
Have again, in the embodiment of Fig. 1, Fig. 4～shown in Figure 6, formed the structure that voltage descends that applies that makes head lamp 25, but embodiment as shown in Figure 7, wait other subsidiary engine for light device 27, similarly also can reduce voltage or electric current by the 2nd power-converting device.
Claims (8)
1. electric vehicles power supply device, it is characterized in that, at the motor (18) that is used to have as the drive source of vehicle (1), at least the elec. vehicle (1) that comprises the subsidiary engine of head lamp (25), has high-tension main battery (4), with and the low secondary cell (5) of the described main battery of voltage ratio (4) voltage, described subsidiary engine electric power is supplied with in the electric vehicles power supply device of the output voltage of described secondary cell (5) and the output voltage by the described main battery (4) after the 1st power-converting device (6) step-down
Described the 1st power-converting device (6) generates charging valtage with the output voltage step-down of main battery (4) to described secondary cell (5),
Also comprise the further step-down of output voltage of described secondary cell (5) and supply to the 2nd power-converting device (11,11a, D1, D2,6a) of subsidiary engine.
2. electric vehicles power supply device as claimed in claim 1 is characterized in that,
Described the 2nd power-converting device is that dutycycle is controlled with restriction the on-off element that applies voltage of described subsidiary engine (11,11a),
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,
The vehicle speed detector device (16) that also comprises the speed that detects vehicle (1),
Detecting vehicle (1) according to the detected speed of a motor vehicle when stopping, little value when switching to described dutycycle than the travelling of vehicle (1).
4. electric vehicles power supply device as claimed in claim 2 is characterized in that,
Elec. vehicle has makes holder vehicle frame (24) that vehicle (1) supports oneself and at the holder vehicle frame switch (28) of holder vehicle frame (24) output detection signal when being in non-reception position,
When described holder vehicle frame switch (28) output detection signal, described dutycycle is switched to zero.
5. as any one described electric vehicles power supply device of claim 1 to 4, it is characterized in that,
The charging valtage that described the 1st power-converting device (6) is supplied with described secondary cell (5) is the high value of rated voltage than secondary cell (5).
6. electric vehicles power supply device as claimed in claim 1 is characterized in that,
Described the 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 the 1st power-converting device (6) is the 1st step-down controller, and described the 2nd power-converting device (6a) is the 2nd step-down controller that makes the further step-down of output voltage of described the 1st step-down controller,
Described the 1st step-down controller (6) is exported the charging voltage of described secondary cell (5), and described the 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 during main switch (9), till moving to described the 1st power-converting device (6) during, 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 true CN102107608A (en) | 2011-06-29 |
| CN102107608B CN102107608B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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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) |
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| 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 |
| CN108839581A (en) * | 2018-06-29 | 2018-11-20 | 北京新能源汽车股份有限公司 | Electric car method for controlling power supply, device and equipment |
| CN110091955A (en) * | 2018-01-30 | 2019-08-06 | 光阳工业股份有限公司 | The power supply system of the Passive part of vehicle |
| CN111669045A (en) * | 2019-03-06 | 2020-09-15 | 丰田自动车株式会社 | Power supply system for vehicle |
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| WO2013061370A1 (en) | 2011-10-26 | 2013-05-02 | 川崎重工業株式会社 | Electric vehicle and method for driving electric vehicle |
| WO2013061387A1 (en) | 2011-10-28 | 2013-05-02 | 川崎重工業株式会社 | Saddle-type electric vehicle |
| JP6245947B2 (en) | 2013-11-06 | 2017-12-13 | ヤマハ発動機株式会社 | Vehicle and battery pack |
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| 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 |
| CN110091955A (en) * | 2018-01-30 | 2019-08-06 | 光阳工业股份有限公司 | The power supply system of the Passive part of vehicle |
| 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 |
| CN108839581A (en) * | 2018-06-29 | 2018-11-20 | 北京新能源汽车股份有限公司 | Electric car method for controlling power supply, device and equipment |
| CN111669045A (en) * | 2019-03-06 | 2020-09-15 | 丰田自动车株式会社 | Power supply system for vehicle |
| CN111669045B (en) * | 2019-03-06 | 2023-07-18 | 丰田自动车株式会社 | Power supply system for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102107608B (en) | 2015-06-17 |
| JP2011131701A (en) | 2011-07-07 |
| JP5219992B2 (en) | 2013-06-26 |
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