CN103434411A - On-line charging type electrombile brake energy recovering system - Google Patents
On-line charging type electrombile brake energy recovering system Download PDFInfo
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- CN103434411A CN103434411A CN201310386361XA CN201310386361A CN103434411A CN 103434411 A CN103434411 A CN 103434411A CN 201310386361X A CN201310386361X A CN 201310386361XA CN 201310386361 A CN201310386361 A CN 201310386361A CN 103434411 A CN103434411 A CN 103434411A
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Abstract
The invention discloses an on-line charging type electrombile brake energy recovering system which comprises a motor controller (1). The motor controller (1) is used for controlling a motor M and at least comprises a power switch Va, an anti-inversing diode D1, a brake resistor R2 and a battery BT, wherein the anti-inversing diode D1 is used for preventing the current from inversely flowing to the positive pole of a net power source, the brake resistor R2 and the battery BT are connected in series to be connected with the power switch Va in series to be connected to the position between a positive pole bus M+ of the motor controller (1) and a negative pole bus M- of the motor controller (1), and the positive pole of the battery BT is connected with the positive pole bus M+. The on-line charging type electrombile brake energy recovering system is simple in principle and high in reliability, the battery is directly used for recovering motor brake energy in net mode operation under the condition that no energy conversion device is additionally arranged, the energy is sufficiently saved, and the operation cost is reduced.
Description
Technical field
The present invention relates to a kind of braking energy of electric automobiles regenerative apparatus, particularly a kind of recovery system of online charging type electric vehicle braking energy.
Background technology
Online charging type electric vehicle is to have increased battery as accessory feed on traditional trackless trolley car.By gauze, directly to motor, provide power supply or battery directly to motor, to provide power supply, while adopting separately the powered battery driving, be called for short auxiliary source module; While adopting separately gauze power supply driving, be called for short network mode.When the highway section of wired network adopts network mode, adopt auxiliary source module when wireless network or off-line, battery-powered continuation operation, two kinds of pattern alternate runs.Vehicle is in network mode travels, and gauze, except directly to motor provides power supply, also charges to battery by the high pressure Vehicular charger online, and under this pattern, battery is not connected with motor operation circuit.
Electronlmobil can carry out auxiliary braking by motor under steam, to reduce the waste of power of mechanical braking.Under auxiliary source module, the energy of motor braking can feed back in battery pack, by battery pack, reclaims, under network mode, the energy of motor braking does not allow to feed back in gauze, so usually online host increases the counnter attack diode in loop, prevent that reverse direction current flow from causing interference to gauze, during car brakeing, the DC bus-bar voltage of electric machine controller is higher than input voltage, effect due to counnter attack diode in the gauze major loop, electric current can not counter-flow, along with braking energy is cumulative, the DC bus-bar voltage of electric machine controller constantly raises, when voltage reaches the setting voltage threshold values, start copped wave in electric machine controller and braking resistor loop, braking energy discharges by the braking resistor of connecting with electric machine controller, to guarantee that the electric machine controller DC voltage can overvoltage, guarantee that motor braking carries out effectively.
Yet network mode has two weak points at least by braking resistor releasing brake energy: the one, and braking energy is wasted fully, can not get recycling; The 2nd, during by braking resistor releasing brake energy, braking resistor can produce huge heat, need to do special protective treatment to braking resistor, and easily damages, and service life is shorter.
Summary of the invention
The present invention is intended at least solve one of technical matters existed in prior art, for this reason, the present invention proposes a kind of recovery system of online charging type electric vehicle braking energy, comprise: electric machine controller 1, described electric machine controller 1 is for controlling motor M, and the positive electrode bus of described electric machine controller 1 or negative pole bus one end at least also comprise a power switch Va; Counnter attack diode D1, the anodic bonding of described counnter attack diode D1 is to the positive pole of gauze power supply, and the negative electrode of described counnter attack diode D1 is connected to the positive electrode bus of described electric machine controller 1, in order to block the electric current reverse direction flow to the gauze positive source; Braking resistor R2; Battery BT, after described braking resistor R2, described battery BT series connection, together with described power switch Va, be connected in series between the positive electrode bus M+ and negative pole bus M-of described electric machine controller 1, and the positive pole of described battery BT is connected with described positive electrode bus M+.
By battery BT with after braking resistor R2 connects, during motor braking, pressure drop on braking resistor R2 equals the pressure reduction of electric machine controller 1 chopping voltage and battery pack current voltage, the pressure drop less of braking resistor R2, therefore the energy that braking resistor R2 consumes is also less, battery, in charge condition, can absorb most of braking energy on the other hand.Compare with brake circuit of the prior art, do not consume braking energy by braking resistor separately, but utilize battery that braking energy is absorbed and is used, saved the energy on the one hand, reduced on the other hand the cal val of braking resistor R2.This programme principle is simple, and reliability is strong, in the situation that do not increase energy conversion apparatus, utilizes battery directly motor braking energy under network mode to be reclaimed, and makes online charging type electric vehicle when the gauze condition is moved, and has saved the energy, has reduced operation cost.
Further, between described battery BT positive pole and described electric machine controller 1, also be provided with counnter attack diode D2, the anodic bonding of described counnter attack diode D2 is to described electric machine controller 1, and the negative electrode of described counnter attack diode D2 is connected to described battery BT positive pole.
Further, also comprise the pre-charge resistance R3 in parallel with counnter attack diode D2, also comprise capacitor C 1, described capacitor C 1 one ends are connected to the anode of described counnter attack diode D2, and the other end is connected to the negative pole of described battery.
Further, be provided with K switch 3 between battery BT positive pole and counnter attack diode D2, pre-charge resistance R3.
Further, described battery BT two ends are respectively arranged with K switch 1, K2, and the positive pole of described battery BT is connected to the negative electrode of counnter attack diode D1 by K switch 1, and the negative pole of described battery BT is connected to the negative pole bus of electric machine controller 1 by K switch 2; When battery-driven car moves under network mode, K switch 1, K2 disconnect, and gauze can charge to battery by the external charging machine; When battery-driven car breaks away from the gauze operation, K switch 1, K2 closure, battery is the motor power supply.
Further, described power switch Va can be arranged on the positive pole of described electric machine controller 1, also can be arranged on the negative pole of described electric machine controller 1, can also power switch Va be set respectively at anodal, negative pole.
The accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is another embodiment of the present invention schematic diagram;
Wherein, 1, electric machine controller; RW1, lightning arrester; L, reactor; QF, circuit breaker; BT, battery; D1, counnter attack diode; D2, counnter attack diode; F1, gauze fuse; F2, battery fuse; K1, anode switch; K2, battery cathode switch; K3, battery charge switch; K4, electric machine controller main contactor; K5, electric machine controller preliminary filling contactless switch; The pre-charge resistance of R1, electric machine controller; R2, braking resistor; The pre-charge resistance of R3, battery charging filter capacitor C1; C1, filter capacitor; C2, filter capacitor; Va, power switch; M, motor.
The specific embodiment
Below describe embodiments of the invention in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label means same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " vertically ", " laterally ", " on ", orientation or the position relationship of the indications such as D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward " be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing purpose, and can not be interpreted as indication or hint relative importance.
In description of the invention, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be done broad understanding, for example, can be mechanical connection or electrical connection, can be also the connection of two element internals, can be directly to be connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
The recovery system of describing according to a kind of online charging type electric vehicle braking energy of the embodiment of the present invention below in conjunction with accompanying drawing 1 comprises:
Counnter attack diode D1, braking resistor R2, battery BT, electric machine controller main contactor K4, electric machine controller 1, motor M, positive electrode bus one end of described electric machine controller 1 comprises a power switch Va;
Described electric machine controller 1 is for controlling motor M, the anodic bonding of described counnter attack diode D1 is to the positive pole of gauze power supply, the negative electrode of described counnter attack diode D1 is connected to the positive electrode bus of described electric machine controller 1, in order to block the electric current reverse direction flow to the gauze positive source; Described braking resistor R2, described battery BT are connected in series between the negative pole bus M-of described power switch Va and electric machine controller 1.
Between electric machine controller two side bus M+, M-, voltage is UM, motor is under braking mode, motor DC side voltage is owing to being ended by counnter attack diode D1, UM raises rapidly, when voltage reaches setting chopping voltage (the general line taking net of battery-driven car voltage fluctuation upper limit 720V), power switch Va conducting, electric current forms loop through M+, Va, battery pack, R2, M-successively battery BT is charged, and the size of UM equals resistive voltage UR and cell pressure UB sum.When voltage, lower than setting chopping voltage, Va closes rapidly.Because battery pack is connected with braking resistor R2, battery pack is directly proportional to their voltage to the power that braking resistor R2 consumes, and setting battery voltage, just can make cell pressure UB in the present invention approach chopping voltage suitably, reclaims to greatest extent braking energy.
Another embodiment of the present invention as shown in Figure 2, on the basis of a upper embodiment, the positive pole of described electric machine controller 1, negative pole bus place are provided with a power switch Va, also be provided with counnter attack diode D2 between described battery BT positive pole and described electric machine controller 1 positive electrode bus M+, the anodic bonding of described counnter attack diode D2 is to the power switch Va at described electric machine controller 1 positive electrode bus M+ place, and the negative electrode of described counnter attack diode D2 is connected to described battery BT positive pole.Also be provided with the filter circuit be comprised of capacitor C 1, pre-charge resistance R3 in battery BT mono-side, pre-charge resistance R3 is in parallel with counnter attack diode D2, and capacitor C 1 one ends are connected to the anode of described counnter attack diode D2, and the other end is connected to the negative pole of described battery; Also be provided with K switch 3 between battery BT positive pole and pre-charge resistance R3, counnter attack diode D2, in order to cut off circuit when battery-driven car is not worked.When K3 is closed, start moment at battery-driven car, battery BT charges to capacitor C 1 by pre-charge resistance R3.Due to battery BT both sides parallel connection filter capacitor C1, during the network mode operation, K switch 3 closures, by pre-charge resistance R3, to capacitor C 1, charge, capacitor C 1 both end voltage is equated substantially with battery voltage, when motor braking, chopper current is carried out to filtering, chopper current is charged to battery BT comparatively reposefully.
In another embodiment, on the basis of above-mentioned another embodiment, described battery BT two ends also are respectively arranged with K switch 1, K2, the positive pole of described battery BT is connected to the negative electrode of counnter attack diode D1 by K switch 1, the negative pole of described battery BT is connected to electric machine controller 1 negative pole bus M-by K switch 2; When battery-driven car moves under network mode, disconnect K1, K2, gauze is powered to electric machine controller; When battery-driven car breaks away from the gauze operation, K switch 1, K2 closure, battery is the electric machine controller power supply, and braking current directly charges the battery by K4, QF, K1, K2, and do not work in rheostatic brake copped wave loop.Also be provided with in described electric machine controller 1 inside the filter circuit be comprised of capacitor C 2, described capacitor C 2 is connected in parallel between the positive and negative busbar of described electric machine controller 1, and when electric machine controller is braked, DC voltage carries out filtering.Also be provided with the pre-charge circuit formed by electric machine controller preliminary filling contactless switch K5, electric machine controller pre-charge resistance R1.
In addition, the present invention also can also be provided with lightning arrester RW1 between the gauze both positive and negative polarity, enters the circuit place at gauze and also is provided with fuse F1, is provided with fuse F2 before anode, be provided with circuit breaker Q F before the electric machine controller positive electrode bus, fully guarantee the circuit safe in operation.Also be provided with reactor L on the circuit of counnter attack diode D1 front.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present invention and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (9)
1. the recovery system of an online charging type electric vehicle braking energy, comprise: electric machine controller (1), described electric machine controller (1) is for controlling motor M, and the positive electrode bus of described electric machine controller (1) or negative pole bus one end at least also comprise a power switch Va; Counnter attack diode D1, the anodic bonding of described counnter attack diode D1 is to the positive pole of gauze power supply, and the negative electrode of described counnter attack diode D1 is connected to the positive electrode bus of described electric machine controller (1), in order to block the electric current reverse direction flow to the gauze positive source; Braking resistor R2; It is characterized in that: also comprise battery BT, after described braking resistor R2, described battery BT series connection, together with described power switch Va, be connected in series between the positive electrode bus M+ and negative pole bus M-of described electric machine controller (1), and the positive pole of described battery BT is connected with described positive electrode bus M+.
2. the recovery system of online charging type electric vehicle braking energy according to claim 1, it is characterized in that: between described battery BT positive pole and described electric machine controller (1), also be provided with counnter attack diode D2, the anodic bonding of described counnter attack diode D2 is to described electric machine controller (1), and the negative electrode of described counnter attack diode D2 is connected to described battery BT positive pole.
3. the recovery system of online charging type electric vehicle braking energy according to claim 2, it is characterized in that: also comprise the pre-charge resistance R3 in parallel with counnter attack diode D2, also comprise capacitor C 1, described capacitor C 1 one ends are connected to the anode of described counnter attack diode D2, and the other end is connected to the negative pole of described battery.
4. the recovery system of online charging type electric vehicle braking energy according to claim 3, is characterized in that: between battery BT positive pole and counnter attack diode D2, pre-charge resistance R3, be provided with K switch 3.
5. according to the recovery system of the arbitrary described online charging type electric vehicle braking energy of claim 1 to 4, it is characterized in that: described battery BT two ends are respectively arranged with K switch 1, K2, the positive pole of described battery BT is connected to the negative electrode of counnter attack diode D1 by K switch 1, the negative pole of described battery BT is connected to the negative pole bus of electric machine controller 1 by K switch 2; When battery-driven car moves under network mode, K switch 1, K2 disconnect, and gauze can charge to battery by the external charging machine; When battery-driven car breaks away from the gauze operation, K switch 1, K2 closure, battery is the motor power supply.
6. the recovery system of online charging type electric vehicle braking energy according to claim 1, it is characterized in that: described power switch Va is arranged on the positive pole of described electric machine controller (1).
7. the recovery system of online charging type electric vehicle braking energy according to claim 1, it is characterized in that: described power switch Va is arranged on the negative pole of described electric machine controller (1).
8. the recovery system of online charging type electric vehicle braking energy according to claim 1 is characterized in that: positive pole, the negative pole of described electric machine controller (1) be respectively arranged with power switch Va.
9. according to the recovery system of the arbitrary described online charging type electric vehicle braking energy of claims 1 to 3, it is characterized in that: described electric machine controller (1) inside also is provided with capacitor C 2, and described capacitor C 2 is connected in parallel between the positive and negative busbar of described electric machine controller (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310386361.XA CN103434411B (en) | 2013-08-29 | 2013-08-29 | A kind of recovery system of online charging type electric vehicle braking energy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310386361.XA CN103434411B (en) | 2013-08-29 | 2013-08-29 | A kind of recovery system of online charging type electric vehicle braking energy |
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| Publication Number | Publication Date |
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| CN103434411A true CN103434411A (en) | 2013-12-11 |
| CN103434411B CN103434411B (en) | 2016-03-02 |
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| CN201310386361.XA Expired - Fee Related CN103434411B (en) | 2013-08-29 | 2013-08-29 | A kind of recovery system of online charging type electric vehicle braking energy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754125A (en) * | 2014-01-24 | 2014-04-30 | 中国重汽集团济南动力有限公司 | Instantly-charged pure electric bus control system |
| CN104467508A (en) * | 2014-12-08 | 2015-03-25 | 日立永济电气设备（西安）有限公司 | Traction converter with braking energy recyclable and conversion method |
| CN110661441A (en) * | 2018-06-28 | 2020-01-07 | 比亚迪汽车工业有限公司 | Electric automobile and motor controller for electric automobile |
| CN111525656A (en) * | 2020-06-03 | 2020-08-11 | 桑顿新能源科技(长沙)有限公司 | Battery electric energy feedback system and vehicle |
| CN113341231A (en) * | 2021-05-26 | 2021-09-03 | 合肥同智机电控制技术有限公司 | High-voltage direct-current bus distributed capacitance detection protection method |
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- 2013-08-29 CN CN201310386361.XA patent/CN103434411B/en not_active Expired - Fee Related
Patent Citations (5)
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| US6294886B1 (en) * | 1998-08-28 | 2001-09-25 | Alstom France Sa | Supply system for an electric traction vehicle |
| CN1270907A (en) * | 1999-04-16 | 2000-10-25 | 武汉云鹤车辆制造厂 | Controller for electrical motorcycle |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754125A (en) * | 2014-01-24 | 2014-04-30 | 中国重汽集团济南动力有限公司 | Instantly-charged pure electric bus control system |
| CN103754125B (en) * | 2014-01-24 | 2016-05-11 | 中国重汽集团济南动力有限公司 | One fills formula pure electric coach control system |
| CN104467508A (en) * | 2014-12-08 | 2015-03-25 | 日立永济电气设备（西安）有限公司 | Traction converter with braking energy recyclable and conversion method |
| CN110661441A (en) * | 2018-06-28 | 2020-01-07 | 比亚迪汽车工业有限公司 | Electric automobile and motor controller for electric automobile |
| CN110661441B (en) * | 2018-06-28 | 2021-10-22 | 比亚迪汽车工业有限公司 | Electric automobile and motor controller for electric automobile |
| CN111525656A (en) * | 2020-06-03 | 2020-08-11 | 桑顿新能源科技(长沙)有限公司 | Battery electric energy feedback system and vehicle |
| CN113341231A (en) * | 2021-05-26 | 2021-09-03 | 合肥同智机电控制技术有限公司 | High-voltage direct-current bus distributed capacitance detection protection method |
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| CN103434411B (en) | 2016-03-02 |
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