CN109720236A - Double-motor power power supply framework, control system and controller - Google Patents
Double-motor power power supply framework, control system and controller Download PDFInfo
- Publication number
- CN109720236A CN109720236A CN201811637607.5A CN201811637607A CN109720236A CN 109720236 A CN109720236 A CN 109720236A CN 201811637607 A CN201811637607 A CN 201811637607A CN 109720236 A CN109720236 A CN 109720236A
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- Prior art keywords
- conducting wire
- power
- power battery
- inverter
- motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of double-motor power power supply frameworks, it is related to new-energy automobile dynamical system technical field, power battery including concatenation, inverter and motor, it is connected between power battery by conducting wire, connected between inverter by conducting wire, the neutral point where conducting wire between one end of the neutral conductor and two adjacent power batteries connects, conducting wire between the other end and corresponding two inverters connects, control the electric energy equilibrium assignment between power battery, realize that the balanced of power battery energy uses, additionally provide a kind of control system, it can be realized multiple-working mode, it can be selected according to operating condition, it is additionally provided with the controller for carrying control system, it is capable of the comprehensive utilization of energy of car spotting, keep the optimization distribution of vehicle energy.
Description
Technical field
The present invention relates to new energy vehicle dynamical system control method more particularly to the power supplys of a kind of pair of high voltage power battery
Framework can be realized cell equalization use, further relate to a kind of control method, can pass through a variety of moulds using the power supply framework
Formula is realized；Also relate to a kind of electric machine controller, electric quantity balancing of the control for each power battery of motor.
Background technique
It is also higher and higher for the energy utilization rate requirement of vehicle with being constantly progressive for new-energy automobile technology, it is existing
In technology, high voltage power battery (700V) used by hybrid vehicle or pure electric vehicle, it usually needs rely on inversion
The voltage that device is converted to 320V or so, which is formed, meets the input requirements of motor, i.e., high voltage power battery by concatenated mode with it is inverse
Become device and motor is sequentially connected and connects, however for the vehicle using bi-motor, in actual condition, there are a certain motors to make
It is excessively high with frequency, it causes the high voltage power battery capacity of series connection with it to suffer great loss, leads to vehicle a certain Working mould under steam
Formula is not available, and so that vehicle phenomenon of sitting is occurred, but also can reduce the service life of battery.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of double-motor power power supply framework, by by inverter
Between be attached, and using the neutral conductor by the connection between neutral point and inverter, the energy for controlling power battery is total
It enjoys, while providing various control mode also directed to the power supply framework, can alternatively be used according to actual condition, and provide
A kind of controller, inside equipped with the control system, to ensure the service life of power battery.
Technical scheme is as follows:
The present invention provides a kind of double-motor power power supply framework, including two groups of power batteries, inverter and motor, every group
Be connected in series, be connected between power battery by conducting wire, connected between inverter by conducting wire, one end of the neutral conductor with it is adjacent
Two power batteries between conducting wire where neutral point connect, the conducting wire phase between the other end and corresponding two inverters
It connects, controls the electric energy equilibrium assignment between power battery.
Further, on the conducting wire that every group of power battery is connect with inverter, pass through conversion line respectively for dynamic branch
On the conducting wire being connected to two inverters, and is realized and flowed back by the neutral conductor.
Further, the conversion line is two groups, and every group of the first tie point is for power battery and directly
On the conducting wire of the inverter of concatenation, the second tie point is the conducting wire between two inverters；Two groups of power batteries and directly
Bridge circuit is also connected between the conducting wire of the inverter of concatenation, centre and the neutral conductor of bridge circuit are connected.
Preferably, pass through Switch Control, switch on the conducting wire or conversion line that power battery is connect with inverter
The only power on-off of conducting wire where control or conversion line；Switch control power capacity flow direction also is provided on the neutral conductor.
The present invention provides a kind of double-motor power battery energy management methods, use electrical source of power framework above-mentioned, energy
It is enough to realize following several operating modes:
(1) the motor distribution of energy that power battery can be directly connected by inverter pair with it, and pass through the neutral conductor
Reflux, forming circuit；
(2) power battery can be connected by conversion line and other inverters, and by the inverter to being connected
Motor distribution of energy, and flowed back by the neutral conductor, forming circuit.
The present invention also provides a kind of controllers, can be realized operating mode above-mentioned, control vehicle power battery it
Between electric quantity balancing.
The utility model has the advantages that the present invention by providing a kind of double-motor power power supply framework, will utilize conducting wire between power battery
Connect, and connect the neutral conductor in the position of neutral point, the conducting wire between the other end and inverter of the neutral conductor is connected, and makes power
The energy of battery can be realized according to the needs of motor and be distributed, and guarantee that the electricity of power battery uses balance；For this purpose, additionally providing
A kind of control system can realize different operating modes, electricity between power battery according to different operating conditions
When having differences, selectivity uses the opposite higher power battery of electricity；A kind of controller is additionally provided simultaneously, equipped with this
Control system can control power supply framework, use convenient for vehicle.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of double-motor power power supply framework schematic diagram disclosed in the embodiment of the present invention；
Fig. 2 flows to structural schematic diagram for a kind of energy of double-motor power power supply disclosed in the embodiment of the present invention；
Fig. 3 is a kind of control system schematic diagram of double-motor power power supply disclosed in the embodiment of the present invention；
Fig. 4 is the first subpattern structural schematic diagram of the first control system of Fig. 3；
Fig. 5 is the second subpattern structural schematic diagram of the first control system of Fig. 3；
Fig. 6 is the structural schematic diagram of second of control model of Fig. 3；
Fig. 7 is the structural schematic diagram of the third control model of Fig. 3.
Number and corresponding component title represented by letter in figure:
1, power battery one；2, power battery two；3, inverter one；4, inverter two；5, motor one；6, motor two；7,
First conducting wire；8, the second conducting wire；9, privates；10, privates；11, the 5th conducting wire；12, the 6th conducting wire；13, it the 7th leads
Line；14, the 8th conducting wire；15, first switch；16, second switch；17, third switchs；18, the 4th switch；19, the 5th switch；
20, the 6th switch；21, the 7th switch.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention is retouched in detail
It states.
Fig. 1 shows a kind of double-motor power power supply framework schematic diagram comprising power battery 1, power battery 1 with
Inverter 1, motor 1 successively mutually concatenate, and further include power battery 22, power battery 22 and inverter 24, motor 26
It successively mutually concatenates, in the prior art, power battery 1 is supplied to motor after converting the high-voltage electricity of storage by inverter 1
One 5, power battery 22 is supplied to motor 26, motor 1 and motor two after converting the high-voltage electricity of storage by inverter 24
6 provide suitable power output according to the demand of operating condition, to vehicle.
In the present embodiment, it is connected between power battery 1 and power battery 22 by the first conducting wire 7, and will
It is connected between inverter 1 and inverter 24 by the second conducting wire 8, wherein will form a neutrality on the first conducting wire 7
Point further includes privates 9, and one end of the privates 9 is connected with neutral point, and the other end and the second conducting wire 8 are connected.
In order to the understanding presently filed embodiment for keeping those skilled in the art apparent, will be moved in the present embodiment
Route between power battery 1 and inverter 1 is known as privates 10, by the line between power battery 22 and inverter 24
Road is known as the 5th conducting wire 11.
Fig. 2 shows the energy of double-motor power power supply in Fig. 1 to flow to structure chart, wherein being capable of shape by conversion line
At the bridge of energy flux, inverter 1 is set to share the energy of power battery 22 as needed, inverter 24 being capable of root
According to the energy for needing shared power battery 1, the energy difference between power battery 1 and power battery 22 be can control reasonable
In the range of, prevent the phenomenon that overusing there are a certain power battery energy, cause power interruption；Similarly, when vehicle system
When dynamic, it is capable of providing energy regenerating channel, by the energy stores of recycling into the minimum power battery of electric energy, prevents single power
Occurs energy stores excess phenomenon in battery.
In order to more clearly visible understand realizing route of the invention, Fig. 3 shows a kind of double-motor power power supply
Control system schematic diagram mainly realizes the switching of route in Fig. 3 by way of switching individually control route, specifically,
First switch 15 is connected on privates 9, first switch 15 is for controlling between power battery 1 and inverter 1
Circuit on-off is connected with second switch 16 on privates 10, and second switch 16 is for controlling power battery 22 and inverter
Circuit on-off between 24 is connected with third switch 17 on the 5th conducting wire 11, and third switch 17 is for controlling the 5th conducting wire 11
On-off.
The 6th conducting wire 12 is connected between privates 10 and the second conducting wire 8, the 6th conducting wire 12 is used for power battery
One 1 electricity branches to inverter 24, is connected with the 4th switch 18 on the 6th conducting wire 12, and the 4th switch 18 is for controlling the
The on-off of six conducting wires 12.
The 7th conducting wire 13 is connected between the 5th conducting wire 11 and the second conducting wire 8, the 7th conducting wire 13 is used for power battery
22 electricity branches to inverter 1, is connected with the 5th switch 19 on the 7th conducting wire 13, and the 5th switch 19 is for controlling the
The on-off of seven conducting wires 13.
It further include the 8th conducting wire 14, the 8th conducting wire 14 is for making between the 6th conducting wire 12, the 7th conducting wire 13 and power battery
Forming circuit, one end of the 8th conducting wire 14 connect with privates 10, and the other end connects with the 5th conducting wire 11, and the 8th leads
The intermediate point of line 14 is connected with privates 9, in the access point and the 8th conducting wire 14 of the 8th conducting wire 14 and privates 9
It is connected with the 6th switch 20 between the access point of privates 10, controls the circuit on-off between the two access points；8th
The 7th is connected between conducting wire 14 and the access point and the 8th conducting wire 14 and the access point of the 5th conducting wire 11 of privates 9 to open
21 are closed, the circuit on-off between the two access points is controlled.
In conjunction with Fig. 3 it is found that first switch 15 is located at the access point of the 8th conducting wire 14 and privates 9, privates 9 and the
Between the access point of two conducting wires 8, first switch 15 can only control privates 9 be located at the two access point sections route it is logical
It is disconnected；Second switch 16 is located at the connection of the tie point, privates 10 and the 8th conducting wire 14 of privates 10 and the 6th conducting wire 12
Between point, second switch 16 can only control the on-off of privates 10, can not control the 6th conducting wire 12 or the 8th conducting wire
14 on-off；Third switch 17 is located at the connection of the 5th conducting wire 11 and the 7th conducting wire 13, the 5th conducting wire 11 and the 8th conducting wire 14
Between tie point, third switch 17 can only control the on-off of the 5th conducting wire 11, can not control the 7th conducting wire 13 or the 8th
The on-off of conducting wire 14.
It is designed by the connection to the above conducting wire and the position of switch rationally designs, can be realized following Working mould
Formula:
(1) the electricity of power battery 1 and power battery 22 close to it is equal when, two kinds of subpatterns: (I) may be implemented
Incorporated by reference to Fig. 4, only first switch 15, second switch 16 and third switch 17 are connected, power battery 1 is by comparing the 4th
The voltage of route and the voltage value of neutral point, from the 4th guide passage of relative low voltage or by the first conducting wire 7, privates
It is transferred to inverter 1 after 9, and is transferred to motor 1；The energy of power battery 22 is transferred to inverter by the 5th route
24, and it is transferred to inverter 24；(II) incorporated by reference to Fig. 5, by the 4th switch 18, the 5th switch 19, the 6th switch 20 and the 7th
Switch 21 is connected, and the energy of power battery 1 is transferred to the 6th conducting wire 12 by privates 10 and flows using the second conducting wire 8
Enter to inverter 24, converted by the voltage of inverter 24, transfer its energy to motor 26, then pass through the 8th conducting wire 14,
Privates 9 is flowed into, flows into power battery 1 or power battery 22 finally by the first conducting wire 7；Similarly, power
The energy of battery 22 is transferred to the 7th conducting wire 13 by the 5th conducting wire 11, flows into inverter 1 using the second conducting wire 8, passes through
The voltage conversion for crossing inverter 1, transfers its energy to motor 1, then passes through the 8th conducting wire 14, flow into privates 9,
Power battery 22 or power battery 1 are flowed into finally by the first conducting wire 7.
(2) when the electricity of power battery 22 is greater than the electricity of power battery 1, incorporated by reference to Fig. 6, by the 7th conducting wire 13
The 5th switch 19 connected with the 6th switch 20 of the 8th conducting wire 14, the energy of power battery 22 is flowed by the 5th conducting wire 11
To the 7th conducting wire 13, part energy flows into inverter 24 by the second conducting wire 8, transfers its energy to by inverter 24
Motor 26, part energy flow into inverter 1 by the second conducting wire 8, transfer its energy to motor by inverter 1
One 5, and privates 9 is flowed by the 8th conducting wire 14, finally it is back to the first conducting wire 7.
(3) when the electricity of power battery 1 is greater than the electricity of power battery 22, incorporated by reference to Fig. 7, by the 4th switch 18
It is connected with the 7th switch 21, the energy of power battery 1 is transferred to the 6th conducting wire 12, part energy warp by privates 10
It crosses the second conducting wire 8 and flows into inverter 24, transfer its energy to motor 26 by inverter 24, part energy is by the
Two conducting wires 8 flow into inverter 1, transfer its energy to motor 1 by inverter 1, and flow by the 8th conducting wire 14
To privates 9, it is finally back to the first conducting wire 7.
By above technical scheme, the present invention can be avoided single power battery energy and overuse, and cause battery electric
Amount is lost for a long time, influences the service life of battery；By the technical program, the electricity between power battery can be carried out
Switch and shared, so that different motors is used the electricity of power battery parallel, guarantee one between different power batteries
Cause property, it is ensured that vehicle has enough power.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection scope.
Claims (6)
1. a kind of double-motor power power supply framework, including two groups of power batteries, inverter and motor, every group is connected in series, special
Sign is, is connected between power battery by conducting wire, is connected between inverter by conducting wire, one end of the neutral conductor and adjacent
The neutral point where conducting wire between two power batteries connects, the conducting wire phase between the other end and corresponding two inverters
It connects, controls the electric energy equilibrium assignment between power battery.
2. a kind of double-motor power power supply framework according to claim 1, which is characterized in that every group of power battery and inversion
On the conducting wire of device connection, on the conducting wire that dynamic branch is connected to two inverters by conversion line respectively, and pass through
Property line realize reflux.
3. a kind of double-motor power power supply framework according to claim 2, which is characterized in that the conversion line is two
Group, every group of the first tie point are on the conducting wire of power battery and the inverter directly concatenated, and the second tie point is two
Conducting wire between inverter；Patchcord is also connected between two groups of power batteries and the conducting wire of the inverter directly concatenated
Road, centre and the neutral conductor of transit line are connected.
4. a kind of double-motor power power supply framework according to claim 2 or 3, which is characterized in that power battery with it is inverse
Become the conducting wire of device connection perhaps on conversion line by Switch Control switch only conducting wire where control or conversion line
Power on-off；Switch control power capacity flow direction also is provided on the neutral conductor.
5. a kind of double-motor power battery management system (bms), which is characterized in that be based on any power of preceding claims 2 to 4
Power supply framework can be realized following several operating modes:
(1) the motor distribution of energy that power battery can be directly connected by inverter pair with it, and flowed back by the neutral conductor,
Forming circuit；
(2) power battery can be connected by conversion line and other inverters, and by the inverter to the motor being connected
Distribution of energy, and flowed back by the neutral conductor, forming circuit.
6. controller, which is characterized in that include the Energy Management System described in claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637607.5A CN109720236A (en) | 2018-12-29 | 2018-12-29 | Double-motor power power supply framework, control system and controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637607.5A CN109720236A (en) | 2018-12-29 | 2018-12-29 | Double-motor power power supply framework, control system and controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109720236A true CN109720236A (en) | 2019-05-07 |
Family
ID=66297913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811637607.5A Withdrawn CN109720236A (en) | 2018-12-29 | 2018-12-29 | Double-motor power power supply framework, control system and controller |
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| Country | Link |
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| CN (1) | CN109720236A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112319229A (en) * | 2020-11-06 | 2021-02-05 | 厦门金龙汽车新能源科技有限公司 | Power-on control method based on electric motor coach dual-power driving system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029883A (en) * | 2009-09-25 | 2011-04-27 | 北汽福田汽车股份有限公司 | Motor power system and vehicle employing system |
| CN102186710A (en) * | 2008-10-14 | 2011-09-14 | 丰田自动车株式会社 | Hybrid vehicle control device and control method |
| JP2013032039A (en) * | 2011-07-30 | 2013-02-14 | Iseki & Co Ltd | Motorized tractor |
| CN206049411U (en) * | 2016-08-31 | 2017-03-29 | 山东鲁中钢铁物流有限公司 | A kind of double frequency conversion compensating chain devices of electric flat carriage |
-
2018
- 2018-12-29 CN CN201811637607.5A patent/CN109720236A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102186710A (en) * | 2008-10-14 | 2011-09-14 | 丰田自动车株式会社 | Hybrid vehicle control device and control method |
| CN102029883A (en) * | 2009-09-25 | 2011-04-27 | 北汽福田汽车股份有限公司 | Motor power system and vehicle employing system |
| JP2013032039A (en) * | 2011-07-30 | 2013-02-14 | Iseki & Co Ltd | Motorized tractor |
| CN206049411U (en) * | 2016-08-31 | 2017-03-29 | 山东鲁中钢铁物流有限公司 | A kind of double frequency conversion compensating chain devices of electric flat carriage |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112319229A (en) * | 2020-11-06 | 2021-02-05 | 厦门金龙汽车新能源科技有限公司 | Power-on control method based on electric motor coach dual-power driving system |
| CN112319229B (en) * | 2020-11-06 | 2022-03-18 | 厦门金龙汽车新能源科技有限公司 | Power-on control method based on electric motor coach dual-power driving system |
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Application publication date: 20190507 |