CN108258906A - Electric vehicle integrated driving system - Google Patents
Electric vehicle integrated driving system Download PDFInfo
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- CN108258906A CN108258906A CN201810240851.1A CN201810240851A CN108258906A CN 108258906 A CN108258906 A CN 108258906A CN 201810240851 A CN201810240851 A CN 201810240851A CN 108258906 A CN108258906 A CN 108258906A
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- 238000006243 chemical reaction Methods 0.000 description 12
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- 230000008901 benefit Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000020442 loss of weight Diseases 0.000 description 2
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- 238000005457 optimization Methods 0.000 description 2
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- 238000012356 Product development Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005183 dynamical system Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- 239000003208 petroleum Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1582—Buck-boost converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- H02J2007/10—
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of electric vehicle integrated driving system, including：The power assembly being made of motor, electric machine controller and retarder, electric machine controller is connect respectively with the battery of electric vehicle, motor, retarder, whole system is made to be integrated with charger function by forming two-way DC/DC converters and two-way DC/AC in a manner of repeated use of device in the major loop topology of the electric machine controller.The present invention passes through integrated charge machine function in motor controller major loop topology so that controller Highgrade integration reduces volume and saves arrangement space and reduce cost.The present invention allows to have the function of charger in the inside of controller by the multiplexing of device, utilizes the big pattern of two class of electric vehicle：Normal state during driving motor can utilize two-way DC/DC when idle（Buck‑Boost）Circuit and two-way DC/AC circuits can not only keep original inversion but also can have been charged the battery with rectification.
Description
Technical field
The present invention relates to New-energy electric vehicle technical field more particularly to a kind of electric vehicle integrated driving system sides
Case, device integrates the two-way DC/DC step-up/step-down circuits of major loop two-way DC/AC and Buck-Boost to concrete scheme in order to control, realizes double
To charger (OBC) function.
Background technology
At present, as energy shortage and the increasingly exacerbation of problem of environmental pollution and the continuous of International Petroleum Price are risen,
A branch of the pure electric automobile as New Green Energy source technology, with zero-emission, noise is low, structure is relatively easy, Ke Yishi
The advantages that existing transportation and energy's weighting prediction, as the developing direction of future automobile technology, is gradually favored, market part by people
Volume is also increasing year by year, and the demand of user is also more and more, and the product development function of promoting electric vehicle parts manufacturer is richer
It is rich.
But the course continuation mileage of electric vehicle, which is also user's emphasis, to be considered the problems of, pays close attention to, also therefore many vehicle enterprises
Receive puzzlement.Second trolley of the electric vehicle as family, but it is tired so that the development of electric vehicle receives by course continuation mileage
Puzzlement, the course continuation mileage problem and battery of vehicle have inseparable relationship, if it is desired to starting with from battery increases course continuation mileage
The volume of increase battery is just needed, so that the charging time is elongated, the arrangement space of vehicle becomes smaller, and car weight also increases.
The charging equipment charging equipment that completely universal part of the manufacturer releases not yet at present, structure type also disunity and valency
Lattice are expensive.So safely and effectively charging system for electric automobile or device just seem particularly heavy to the proposition one kind how to innovate
Will, also as the subject of entire new energy industry.
Invention content
The present invention provide it is a kind of it is efficient, small, cost and highly integrated, safely and effectively electric vehicle collection can be reduced
Into drive system.
To achieve the above object, the present invention provides a kind of electric vehicle integrated driving system, including：By motor, motor control
The power assembly that device and retarder processed are formed, the electric machine controller respectively with the battery of electric vehicle, the motor, retarder
Connection, by forming two-way DC/DC converters and two-way in a manner of repeated use of device in the major loop topology of the electric machine controller
DC/AC makes whole system be integrated with charger function.
Wherein, the two-way DC/DC converters are connect with the battery.
Wherein, the two-way DC/DC converters include：First switch S1, second to connect with the first switch S1 open
S2 and inductance L1 is closed, wherein：
One end of the inductance L1 is connected between the first switch S1 and second switch S2, other end connection battery
Anode；
The other ends of the first switch S1 far from the inductance L1 connects the major loop of the electric machine controller；
The other ends of the second switch S2 far from the inductance L1 connects the major loop of the electric machine controller；
The first switch S1 and second switch S2 interlockings, when first switch S1 is open-minded, and second switch S2 ends, composition
Buck voltage-dropping types DC/DC；Otherwise first switch S1 cut-offs, when second switch S2 is opened, composition Boost step-up DCs/DC.
Wherein, the first switch S1 and second switch S2 is switching tube, wherein：
The source electrode of the first switch S1 connects the drain electrode of the second switch S2, the drain electrode connection of the first switch S1
The major loop of the electric machine controller；
One end of the inductance L1 is connected between the drain electrode of source electrode and second switch S2 of the first switch S1, another
The anode of end connection battery；
The source electrode of the second switch S2 connects the cathode of the battery and the major loop of electric machine controller.
Wherein, the two-way DC/DC converters further include：Capacitance C1 and resistance R3, the capacitance C1 and resistance R3 are simultaneously
It is associated between the anode and cathode of the battery.
Wherein, the two-way DC/DC converters further include：Capacitance C2 and resistance R4, the capacitance C2 and resistance R4 are in parallel,
The capacitance C2 connects the drain electrode of the first switch S1 with one end of resistance R4, and the other end connects the source of the second switch S2
Pole.
Wherein, the controller supports V-V, V-G, V-L operating mode.
The beneficial effects of the invention are as follows：Integrated bi-directional DC/DC fast charge functions, two-way in motor controller major loop topology
DC/AC (OBC) trickle charge function so that controller Highgrade integration reduces volume and reduces cost.It is embodied in：
1st, independent charger (OBC) unit, fast charge circuit and Corresponding matching harness are saved；
2nd, Highgrade integration, small, PDU function optimizations be more practical and cost reduction, facilitates arrangement and loss of weight；
3rd, the fast socket, connector between motor, electric machine controller is saved；
4th, in the case where polarity of voltage remains unchanged, integrated bi-directional DC/DC circuits are multiplexed two-way DC/AC, original three-phase
Inversion major loop device forms.On the basis of improving practicability, energy two-way transmission, entire scheme device are conveniently realized
Reusability is high, and the usage experience of user is promoted on the basis of practical.
Description of the drawings
Fig. 1 is the power assembly integrated framework schematic diagram of electric vehicle integrated driving system proposed by the present invention；
Fig. 2 is the major loop topological structure schematic diagram of electric vehicle integrated driving system proposed by the present invention；
Fig. 3 is the circuit diagram of two-way DC/DC converters proposed by the present invention；
Fig. 4 is two-way fast charge operating mode schematic diagram proposed by the present invention；
Fig. 5 is two-way OBC/ trickle charges operating mode schematic diagram proposed by the present invention.
Specific embodiment
The present invention considers：Vehicle-mounted charge machine equipment charges to battery by converting the electric energy of power grid under normal conditions,
Battery provides electric energy so as to driving motor rotation again for entire electric vehicle, to meet the course continuation mileage of electric vehicle.But vehicle
Spare time, the energy of battery can provide electric energy by being converted into AC load, DC load and power grid, and these
It is not all utilized and is developed well at present, wherein, AC charging has the advantages of high-power charging, efficient.
The present invention does an electric vehicle integrated driving on the basis of existing product motor, controller, power assembly
System schema：Controller is integrated into dynamic again by repeated use of device integrated bi-directional charger function and with driving motor, retarder
Power assembly；Controller therein includes bidirectional, dc fast charge function (two-way DC/DC, the work(with V-V for two-in-one controller
Can, charging source can be the electric vehicle of direct current stake or same protocol)；Two-way trickle charge function (OBC) (two-way DC/AC, tool
Have motor driving, exchange stake charging, alternating current or commercial power charging, support the functions such as V to G, V to L electric discharge) integration
Integrated manipulator.
Specifically, the power assembly that Fig. 1-Fig. 5, Fig. 1 are electric vehicle integrated driving systems proposed by the present invention is please referred to
Integrated framework schematic diagram；Fig. 2 is the major loop topological structure schematic diagram of electric vehicle integrated driving system proposed by the present invention；Figure
3 be the circuit diagram of DC/DC converters proposed by the present invention；Fig. 4 is two-way fast charge operating mode schematic diagram proposed by the present invention；Figure
5 be bidirectional charger proposed by the present invention (OBC)/trickle charge operating mode schematic diagram.
As Figure 1-Figure 5, a kind of electric vehicle integrated driving system proposed by the present invention, including：By motor, motor control
The power assembly that device and retarder processed are formed, the electric machine controller respectively with the battery of electric vehicle, the motor, retarder
It is electrically connected, by forming two-way DC/DC converters and two-way in a manner of repeated use of device in the major loop topology of electric machine controller
DC/AC makes whole system be integrated with charger function.
Wherein, the two-way DC/DC converters are connect with the battery.The bidirectional charger function support V-V, V-G,
V-L operating modes；The two-way fast charge function supports V-V operating modes.
The two-way DC/DC converters include：First switch S1, the second switch S2 to connect with the first switch S1,
And inductance L1, wherein：
One end of the inductance L1 is connected between the first switch S1 and second switch S2, other end connection battery
Anode；
The other ends of the first switch S1 far from the inductance L1 connects the major loop of the electric machine controller；
The other ends of the second switch S2 far from the inductance L1 connects the major loop of the electric machine controller；
The first switch S1 and second switch S2 interlockings, when first switch S1 is open-minded, and second switch S2 ends, composition
Buck voltage-dropping types DC/DC；Otherwise first switch S1 cut-offs, when second switch S2 is opened, composition Boost step-up DCs/DC.
The first switch S1 and second switch S2 is switching tube, and switching tube described herein can be IGBT, but
IGBT is not limited to, wherein：
By taking IGBT as an example, the collector of the emitter connection second switch S2 of the first switch S1, described first
The collector for switching S1 connects the major loop of the two-way fast charge unit and the electric machine controller；
One end of the inductance L1 is connected between the emitter of the first switch S1 and the collector of second switch S2,
The other end connects the anode of battery；
The emitter of the second switch S2 connects the cathode of the battery.
By taking metal-oxide-semiconductor as an example, wherein：
The source electrode of the first switch S1 connects the drain electrode of the second switch S2, the drain electrode connection of the first switch S1
The major loop of the electric machine controller；
One end of the inductance L1 is connected between the drain electrode of source electrode and second switch S2 of the first switch S1, another
The anode of end connection battery；
The source electrode of the second switch S2 connects the cathode of the battery and the major loop of electric machine controller.
The two-way DC/DC converters further include：Capacitance C1 and resistance R3, the capacitance C1 and resistance R3 are connected in parallel on institute
It states between the anode of battery and cathode.
Further, the two-way DC/DC converters further include：Capacitance C2 and resistance R4, the capacitance C2 and resistance R4
Parallel connection, the capacitance C2 connect the collector of the first switch S1 with one end of resistance R4, and other end connection described second is opened
Close the emitter of S2.
The present invention realizes two-way DC/AC (inversion, rectified action), Buck-Boost liters using the major loop of electric machine controller
Reduction voltage circuit (two-way DC/DC) carries out bidirectional charger (OBC) and charges, and has motor driving, alternating current-direct current charging, supports two-way V
The functions such as to G, V to V, V to L charge and discharge solve the problems, such as that the volume of independent OBC units is big, of high cost；
Therefore, the present invention integrates the power assembly of motor, retarder, control therein again on the basis of integrated manipulator
Device makes whole system be integrated with charger function by forming two-way DC/DC converters and two-way DC/AC in a manner of repeated use of device
(supporting V-V, V-G, V-L), by integrated bi-directional DC/DC, two-way DC/AC parts can a variety of situation charge and discharge whenever and wherever possible
It is more convenient, more rapidly so that the chance of cart substantially reduces, and cost is reduced while realizing Highgrade integration.
The present invention program is described in detail below：
The present invention realizes conversion of the electric vehicle to electric vehicle V-V simultaneously；Alternating current-direct current charging pile charges to electric vehicle
State L-V, G-V；The bi-directional conversion that electric vehicle discharges to AC load or power grid V-L, V-G, power recovery repeat to make
Function.
As shown in Figure 1, illustrating the power assembly Integrated Solution of the controller based on integrated charge machine, power assembly three closes
One (motor, controller, retarder), two-in-one (controller, charger function) the main topology of controller, according to two-way in topology
DC/DC, two-way DC/AC are partly, it can be achieved that two-way V-V, V-L, V-G.
The main following two two way circuits composition of this programme：
1st, two-way fast charge circuit：Battery --- Buck-Boost DC/DC circuits --- two-way fast charge work(of electric vehicle
Energy；Other electric vehicles that can be charged with direct-current charging post or have identical communications protocol charge, otherwise the present invention
Electric vehicle, which can also externally discharge, realizes the function of two-way V-V；
2nd, two-way trickle charge circuit：Battery --- Buck-Boost DC/DC circuits --- major loop DC/AC of electric vehicle
Circuit --- two-way trickle charge (OBC) function；It can be by exchanging the master of stake, household electric and commercial power through original motor controller
Loop commutation into direct current supply electricity to vehicle battery charging, can also by battery through major loop inversion again band AC load, realize
The function of two-way V-L, V-G, repeated use of device rate higher, and it is highly integrated, cost is reduced to a certain extent, in practicability
On the basis of promote user experience.
Wherein have that build also have two-way fast charge, two-way trickle charge and the major loop of meaning be all to have peripheral contact to motor
Device, relay connection, including the two-way DC/DC conversions of Buck-Boost, the two-way DC/AC conversions of major loop, all by motor control
Device MCU processed is uniformly controlled.
This programme major loop topology is wrapped as shown in Fig. 2, show the Integrated Solution of charger function and electric machine controller
It includes：The two-way DC/AC conversions of major loop of controller, the two-way DC/DC conversion circuits of Buck-Boost, two-way fast charge and two-way trickle charge
Peripheral circuit topology and motor.
Wherein, the contactor that fast charge, trickle charge control is controlled by electric machine controller MCU to be disconnected, the normal work of electric machine controller
Operation mode is as follows：
MCU receives the instruction of entire car controller VCU, and providing power to Inverter main loop units by battery unit passes through
Inversion driving motor rotates.In the normal mode of operation, it can constantly be adjusted according to motor speed using two-way DC/DC converters
Inversion side inlet highway voltage (if cannot adjust constant voltage adjustment rotating speed to a certain extent later if can not be further continued for increasing
Add rotating speed), reduce current of electric ripple, it is more convenient, efficiently realize the functions such as two-way feedback, so as to improve vehicle efficiency.
By the raising to DC bus-bar voltage, the speed adjustable range of motor is promoted, is reduced under constant power mode to motor
Weak magnetic controls difficulty, and busbar voltage raising declines so as to corresponding output current, conveniently realizes the wide velocity interval of motor
Output-constant operation mode reduces the complexity requirement of design of electrical motor.
As shown in figure 3, show the DC/DC conversion circuits of Buck-Boost, wherein, with the two-way of Buck-Boost
DC/DC conversion circuits, switching device is reduced compared with traditional DC/DC converters, no longer with transformer isolation, switching tube S1 and
S2 is interlocked, and when switching, S1 is open-minded, when S2 ends, forms Buck voltage-dropping types DC/DC；Otherwise switch S1 cut-offs, S2 is open-minded, composition
Boost step-up DCs/DC.Control method is simpler, conveniently improves the function of two-way feedback, to realize V-V, V-L, V-
The bi-directional conversion of G accomplishes fluently solid foundation.
This programme operating mode is explained in detail below：
1st, forward and reverse driving：BUCK-BOOST liters are formed by Support Capacitor C1, power inductor L1, switching device S1, S2
Cell voltage is adjusted to corresponding demand voltage according to corresponding operating mode and kept constant by reduction voltage circuit, then by S3~
S8 inversion units are by DC inversion into three-phase alternating current, and response VCU gives corresponding rotating speed and torque command, so as to which driving motor makes
Electric vehicle enters normal mode of operation.
2nd, braking/feedback：BUCK-BOOST electricity is formed by Support Capacitor C1, power inductor L1, switching device S1, S2
Road, when braking or energy feedback, the busbar voltage of inverter side is converted, then bis- by BUCK-BOOST through the two-way DC/AC of major loop
It adjusts to corresponding voltage and charges the battery to DC/DC conversion circuits, so as to fulfill energy recovery function.
3rd, two-way fast charge pattern：
As shown in figure 4, show two-way fast charge operating mode schematic diagram.
The contactor that control contactor, the three-phase of bidirectional charger (OBC)/trickle charge are output to motor controls disconnection by MCU,
Fast charge contactor is attracted, and MCU receives entire car controller charging instruction, externally received by battery unit/power is provided, so as to fulfill
Two-way fast charge/(DC/DC) charge function.
Fast charge is built upon between electric vehicle (V-V) on the basis of having identical technical protocol, can be mutual
Power is provided.
Two-way fast charge/(DC/DC) pattern：Buck- is formed by Support Capacitor C1, power inductor L1, switching device S1, S2
The two-way DC/DC conversion circuits of Boost, it is right by external charging equipment (direct current stake or another electric vehicle) according to charging instruction
Battery charges；It is instructed according to electric discharge, cell voltage is converted into external demand voltage level, so as to fulfill to external equipment
The reverse charging function of (another electric vehicle).
4th, bidirectional charger (OBC)/trickle charge pattern：
As shown in figure 5, Fig. 5 shows bidirectional charger (OBC)/trickle charge operating mode schematic diagram.
Two-way fast charge/DC control contactors, three-phase output contactor are controlled by MCU and disconnected, bidirectional charger/trickle charge contact
Device is attracted, and MCU receives entire car controller charging instruction, and by bidirectional charger (OBC) ,/trickle charge externally receives/provides power, so as to
Realize bidirectional charger (OBC)/trickle charge charge function.
Bidirectional charger (OBC)/trickle charge pattern：When bidirectional charger (OBC) connects external AC 220V power supplys, S3~S8 is closed
It closes, and forms rectification, turned by Support Capacitor C1, C2, power inductor L1, the two-way DC/DC of switching device S1, S2Buck-Boost
Circuit is changed, AC voltage transformations into corresponding DC DC voltages and are adjusted to corresponding voltage level, so as to fulfill to vehicle electrical
The trickle charge function in pond.
DC voltage is provided by Vehicular battery, is converted through Buck-Boost DC/DC converters to corresponding DC voltage water
It is flat, then controller control S3~S8 work, by D/C voltage through PWM modulation, by L2, L3 be transformed into AC voltage outputs to other
Vehicle OBC so as to fulfill the process to other vehicles, power grid or load charging, realizes the work of two-way V-V, V-G, V-L
Operation mode.
Wherein, V-G operating modes：With reference to the time-of-use tariffs of power grid, when peak value electricity price, realizes that vehicle feeds power grid, paddy
It realizes that vehicle charges to battery, realizes the reasonable utilization of time-of-use tariffs during the electricity price of bottom, reduces charging cost pressure.
V-L operating modes：OBC exports AC voltages and is detached from power grid, real by connecing special interconnecting device in OBC charge ports
Single-phase 220Vac power supplys are now provided external electric equipment, such as have a power failure that can play to family powered lighting or go out can
Electric oven etc. equipment to be given to power, the puzzlement having a power failure, the effect for improving quality of the life, the base for improving practicability are solved well
The good experience of user is better met on plinth.
Compared with prior art, the advantage of the present invention program is：
The electric machine controller of integrated bi-directional charger function is that motor, retarder are integrated into power assembly, retarder and
Motor shares end cap, and the fast socket, connector of motor and electric machine controller is also saved, and the volume of entire dynamical system is significantly
Reduce, so that the arrangement space of vehicle is also expanded.
In the case where polarity of voltage remains unchanged, energy two-way transmission is conveniently realized, entire scheme has effect
Rate is high, small, repeated use of device rate is high.
Optimize electric vehicle overall performance and efficiency, increase the mileage travelled of electric vehicle and better conform to city operating mode,
It preferably adapts to Brake energy recovery and converter output terminal is avoided situations such as surge voltage occur.
It is highly integrated, facilitate realize the functions such as two-way OBC, two-way fast charge with this solution, be greatly saved arrangement sky
Between and integral vehicle cost.
It supports the powering modes such as V → G, V → V, V → L, on the basis of original alternating current-direct current charges to electric vehicle, realizes
Vehicle-to-vehicle, vehicle, to a charge mode of various AC loads, adapts to the increasingly sophisticated application of China's electric vehicle to power grid, vehicle
Operating mode, in the case of the many-sided demand for meeting various clients, the practicability for greatly promoting electric vehicle simultaneously promotes user's
Experience.
The present invention realizes two-way DC/AC (inversion, rectified action), Buck-Boost liters using the major loop of electric machine controller
Reduction voltage circuit (two-way DC/DC) carries out bidirectional charger (OBC) and charges, and has motor driving, alternating current-direct current charging, supports two-way V
The functions such as to G, V to V, V to L charge and discharge solve the problems, such as that the volume of independent OBC units is big, of high cost；
Wherein, driving motor is that cell voltage is increased to a fixed voltage value by controller, and inversion control motor passes through
Retarder output torque；Converting Unit can be multiplexed with charging, realize trickle charge function by the switching of contactor, relay, i.e.,
Also it is the main devices of DC/AC conversions for inversion major loop.
Therefore, the present invention integrates the power assembly of motor, retarder, control therein again on the basis of integrated manipulator
Device integrated bi-directional charger unit (supporting V-V, V-G, V-L), two-way fast charge unit (V-V) and two-way DC/DC converters, pass through
Integrated bi-directional DC/DC, two-way DC/AC parts, can a variety of situation charge and discharge whenever and wherever possible it is more convenient, more rapidly so that cart
Chance substantially reduce, realize Highgrade integration while reduce cost.
Compared with prior art, the present invention has the advantages that：
Integrated bi-directional DC/DC fast charge functions in motor controller major loop topology, two-way DC/AC (OBC) trickle charge function, make
Controller Highgrade integration is obtained, reducing volume simultaneously reduces cost.It is embodied in：
1st, independent charger (OBC) unit, fast charge circuit and Corresponding matching harness are saved；
2nd, Highgrade integration, small, PDU function optimizations be more practical and cost reduction, facilitates arrangement and loss of weight；
3rd, the fast socket, connector between motor, electric machine controller is saved；
4th, in the case where polarity of voltage remains unchanged, integrated bi-directional DC/DC circuits are multiplexed original three-phase inversion major loop
Device form two-way DC/AC functions, on the basis of improving practicability, conveniently realize energy two-way transmission, entire side
Case has efficient, small, repeated use of device rate height, promotes the usage experience of user.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every utilization
Equivalent structure or the flow transformation that description of the invention and accompanying drawing content are made, are directly or indirectly used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (7)
1. a kind of electric vehicle integrated driving system, which is characterized in that including：It is made of motor, electric machine controller and retarder
Power assembly, the electric machine controller connect respectively with the battery of electric vehicle, the motor, retarder, the motor control
Make whole system by forming two-way DC/DC converters and two-way DC/AC in a manner of repeated use of device in the major loop topology of device processed
It is integrated with charger function.
2. electric vehicle integrated driving system according to claim 1, which is characterized in that the two-way DC/DC converters
It is connect with the battery.
3. electric vehicle integrated driving system according to claim 1, which is characterized in that the two-way DC/DC converters
Including：First switch S1, with the first switch S1 second switch S2 to connect and inductance L1, wherein：
One end of the inductance L1 is connected between the first switch S1 and second switch S2, and other end connection battery is just
Pole；
The other ends of the first switch S1 far from the inductance L1 connects the major loop of the electric machine controller；
The other ends of the second switch S2 far from the inductance L1 connects the major loop of the electric machine controller；
The first switch S1 and second switch S2 interlockings when first switch S1 is open-minded, and second switch S2 ends, form Buck
Voltage-dropping type DC/DC；Otherwise first switch S1 cut-offs, when second switch S2 is opened, composition Boost step-up DCs/DC.
4. electric vehicle integrated driving system according to claim 3, which is characterized in that the first switch S1 and described
Second switch S2 is switching tube, wherein：
The source electrode of the first switch S1 connects the drain electrode of the second switch S2, described in the drain electrode connection of the first switch S1
The major loop of electric machine controller；
One end of the inductance L1 is connected between the drain electrode of source electrode and second switch S2 of the first switch S1, and the other end connects
Connect the anode of battery；
The source electrode of the second switch S2 connects the cathode of the battery and the major loop of electric machine controller.
5. electric vehicle integrated driving system according to claim 4, which is characterized in that the two-way DC/DC converters
It further includes：Capacitance C1 and resistance R3, the capacitance C1 and resistance R3 are connected in parallel between the anode and cathode of the battery.
6. electric vehicle integrated driving system according to claim 4, which is characterized in that the two-way DC/DC converters
It further includes：Capacitance C2 and resistance R4, the capacitance C2 and resistance R4 are in parallel, described in the capacitance C2 is connected with one end of resistance R4
The drain electrode of first switch S1, the other end connect the source electrode of the second switch S2.
7. the electric vehicle integrated driving system according to any one of claim 1-6, which is characterized in that the controller
Support V-V, V-G, V-L operating mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810240851.1A CN108258906A (en) | 2018-03-22 | 2018-03-22 | Electric vehicle integrated driving system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810240851.1A CN108258906A (en) | 2018-03-22 | 2018-03-22 | Electric vehicle integrated driving system |
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| CN108258906A true CN108258906A (en) | 2018-07-06 |
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| CN201810240851.1A Pending CN108258906A (en) | 2018-03-22 | 2018-03-22 | Electric vehicle integrated driving system |
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| CN114597539A (en) * | 2022-03-04 | 2022-06-07 | 山东大学 | Low-temperature heating-charging integrated topology for power battery of electric automobile and control method |
| CN115390489A (en) * | 2022-08-23 | 2022-11-25 | 浙江伊控动力***有限公司 | Modularized integrated electric drive controller and driving method thereof |
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