CN105098863B - Cell apparatus, driving device, the control method of drive system and drive system - Google Patents
Cell apparatus, driving device, the control method of drive system and drive system Download PDFInfo
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- CN105098863B CN105098863B CN201410219848.3A CN201410219848A CN105098863B CN 105098863 B CN105098863 B CN 105098863B CN 201410219848 A CN201410219848 A CN 201410219848A CN 105098863 B CN105098863 B CN 105098863B
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- voltage
- cell apparatus
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- battery
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Abstract
A kind of cell apparatus, driving device, the control method of drive system and drive system.The cell apparatus includes：Battery control unit, battery pack, the first switch being connect with the battery anode and the first outer connection component being connect with the battery electrode and the first switch；The battery control unit is suitable for monitoring the voltage at the first switch both ends, and when the voltage difference at the first switch both ends is less than or equal to preset voltage difference, the first switch is controlled to be closed, to export the voltage of the cell apparatus.The cost of cell apparatus can have not only been reduced using the cell apparatus, but also impact of the cell apparatus at work suffered by each component part can be reduced.
Description
Technical field
The present invention relates to automobile charging fields, and in particular to a kind of cell apparatus, driving device, drive system and driving
The control method of system.
Background technology
At present, the drive system of automobile is usually made of cell apparatus and driving device, i.e., by by driving device with
Cell apparatus is attached, and then completes the charging process to driving device.
Wherein, the precharging circuit for being provided with battery pack and being connect with the battery pack is needed in cell apparatus, it is described pre-
Charging circuit is usually made of preliminary filling relay and the preliminary filling resistance being connected in series with the preliminary filling relay, for battery pack
Into line precharge, when being charged with reducing to driving device, to the impact caused by the other components of cell apparatus.
Accordingly, it needs to be provided with unidirectional voltage up-down unit in driving device, for the electricity for exporting cell apparatus
Pressure is converted into the low pressure that vehicle battery and high-voltage load can be born, to complete to vehicle battery and high-voltage load
Charging.
However, in above-mentioned technical proposal precharging circuit setting so that the cost of cell apparatus increases.
Invention content
The embodiment of the present invention solves the problems, such as it is how not only to have reduced the cost of cell apparatus but also reduced cell apparatus working
When each component part suffered by impact.
To solve the above problems, the embodiment of the present invention provides a kind of cell apparatus, the cell apparatus includes：Battery controls
Unit, battery pack, the first switch being connect with the battery anode and with the battery electrode and the first switch
First outer connection component of connection；The battery control unit is suitable for monitoring the voltage at the first switch both ends, and described
When the voltage difference at first switch both ends is less than or equal to preset voltage difference, the first switch is controlled to be closed, to export the electricity
The voltage of pool device.
Optionally, the cell apparatus further includes：It is connect with the battery electrode and first outer connection component
Second switch.
Optionally, the first switch is anode relay, and the second switch is charging cathode relay.
Optionally, the first switch is charging anode relay, and the second switch is cathode relay.
The embodiment of the present invention additionally provides a kind of driving device, and the driving device includes：Bi-directional voltage lifting unit is fitted
Signal and input signal are controlled, and under the control of said control signal, the voltage of the input signal is risen in receiving
Height reduces and by the control source after being raised and lowered to external loading；It is in parallel with the bi-directional voltage lifting unit to connect
The high-voltage load connect；And the second outer connection component with the first outer connection component coupling of cell apparatus.
Optionally, the bi-directional voltage lifting unit is bidirectional, dc to DC converter.
The embodiment of the present invention additionally provides a kind of drive system, and the drive system includes：Above-mentioned cell apparatus and
Above-mentioned driving device, the cell apparatus pass through the first outer connection component and the second outer connection component coupling of the driving device
It connects.
Optionally, the battery control unit is further adapted for sending output voltage target to the bi-directional voltage lifting unit
Value, the bi-directional voltage lifting unit increase the output voltage of itself according to the output voltage desired value received.
Optionally, the battery control unit is further adapted for sending corresponding control letter to the bi-directional voltage lifting unit
Number；The bi-directional voltage lifting unit reduces the output voltage of itself according to the control signal received.
The embodiment of the present invention additionally provides a kind of control method of drive system, and the drive system includes above-mentioned battery
Device and above-mentioned driving device, the control method include：
When the drive system receives enabling signal, the electricity is monitored by the battery control unit of the cell apparatus
The voltage at the first switch both ends of pool device；
When the voltage difference at the first switch both ends is less than preset voltage difference, described in the battery control unit control
First switch is closed, and the cell apparatus charges to the high-voltage load of the driving device；
After the high-voltage load charging complete, the battery control unit is to the bi-directional voltage liter of the driving device
It drops unit and sends corresponding control signal, the cell apparatus charges through the bi-directional voltage lifting unit to external loading.
Optionally, the control method further includes：The battery control unit is sent to the bi-directional voltage lifting unit
Output voltage desired value, the bi-directional voltage lifting unit increase the voltage of itself according to the output voltage desired value received.
Compared with prior art, the technical solution of the embodiment of the present invention has the following advantages：
The voltage at first switch both ends is monitored by battery control unit, and the voltage difference at the first switch both ends is small
When equal to preset voltage difference, then first switch is controlled to be closed, you can to reduce to groups such as first switch and second switches
Into the impact of component, and need not setting precharging circuit.Due to need not setting precharging circuit, the electricity in the embodiment of the present invention
Pool device can charge to other devices with smaller cost.
Description of the drawings
Fig. 1 is the structure diagram of cell apparatus in the embodiment of the present invention；
Fig. 2 is the structure diagram of driving device in the embodiment of the present invention；
Fig. 3 is the structure diagram of drive system in the embodiment of the present invention；
Fig. 4 is the flow chart of the control method of drive system in the embodiment of the present invention.
Specific embodiment
In current cell apparatus, precharging circuit is usually provided with, i.e., is composed in series by preliminary filling resistance and preliminary filling relay
Circuit, with reduce cell apparatus to other devices charging during, to caused by the other components of cell apparatus
Impact.However, the setting of precharging circuit, causes the cost of cell apparatus to increase.
In view of the above-mentioned problems, the embodiment provides a kind of cell apparatus, the cell apparatus includes battery control
Unit processed, the battery control unit can monitor the voltage at first switch both ends, and the voltage difference at first switch both ends expires
During the preset voltage difference of foot, then first switch is controlled to be closed, and need not setting precharging circuit.In this way, it can not only reduce battery
Impact suffered by each component part of device, and the cost of cell apparatus can be reduced.
It is understandable for the above objects, features and advantages of the present invention is enable to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Referring to Fig. 1, the embodiment provides a kind of cell apparatus 10.The cell apparatus 10 can include：Electricity
Pond control unit 110, battery pack 120, the first switch 130 being connect with 120 anode of battery pack and with the battery pack
The first outer connection component 140 that 120 cathode and the first switch 130 connect.
In order to preferably control 120 output voltage of battery pack, the cell apparatus 10 can also include and the battery pack
120 cathode and the second switch 150 of first outer connection component 140 connection.
Wherein, the battery control unit 110 is suitable for monitoring the voltage at 130 both ends of first switch, and described the
When the voltage difference at one 130 both ends of switch is less than or equal to preset voltage difference, the first switch 130 is controlled to be closed.In this way, work as institute
When stating the voltage difference at 130 both ends of first switch less than or equal to preset voltage difference, i.e., the voltage quilt at described 130 both ends of first switch
Control can reduce the impact to first switch 130 in the range of the first switch 130 can be born, also simultaneously
Reduce the impact to second switch 150.
It should be noted that the preset voltage difference can be set by those skilled in the art according to actual conditions
It puts, as long as in the range of the preset voltage difference, the impact to each component part of the cell apparatus can be reduced i.e.
It can.
In specific implementation, after the cell apparatus 10 establishes connection with other devices, the battery control
Unit 110 can first control second switch 150 to be closed, then remove the voltage of 130 both sides of monitoring and controlling first switch.Described first
Switch 130 it is not closed before, the cell apparatus not yet charges to other devices, until the battery control unit 110 controls
After the first switch 130 is closed, the cell apparatus just starts to other devices.
It should be noted that the first switch 130 and the second switch 150 can be any one switches, this
Place is not construed as limiting.
For example, the first switch 130 and the second switch 150 can be relays or other have switch property
The switch that the device of matter is formed.When the first switch 130 and the second switch 150 are relays, can according to
The difference of the device of the cell apparatus connection, anode relay is set as by the first switch 130, accordingly, can be incited somebody to action
The second switch 150 is set as charging cathode relay.Alternatively, the first switch 130 is set as charging anode relay
The second switch 150 accordingly, can be set as cathode relay by device.
It should be noted that first outer connection component 140 can be high-voltage connector or low pressure connector, also may be used
Think the connecting component of other forms, as long as can be attached with other devices, be not construed as limiting herein.
Wherein, when first outer connection component 140 is high-voltage connector, the cell apparatus 10 and other described dresses
Set up vertical high pressure connection.And first outer connection component 140 be low pressure connector when, the cell apparatus 10 with it is described its
His device establishes low pressure connection.
Referring to Fig. 2, the embodiment of the present invention additionally provides a kind of driving device 20.The driving device 20 includes two-way electricity
Press lifting unit 210,220 and second outer connection component 240 of high-voltage load.
Wherein, the bi-directional voltage lifting unit 210 is connected in parallel with the high-voltage load 220, and with external loading 230
Coupling.The driving device 20 is coupled by the first outer connection component of the second outer connection component 240 and cell apparatus.It is described double
It is suitable for receiving control signal and input signal, and under the control of said control signal, adjust itself to voltage up-down unit 210
Output voltage, for example the output voltage of itself is raised and lowered, and by the control source after adjusting to high-voltage load 220 or outer
Section load 230.
It should be noted that the external loading 230 can be vehicle battery, it is not construed as limiting herein.The present invention with
In lower embodiment, by the external loading 230 to be illustrated for vehicle battery.
In specific implementation, the bi-directional voltage lifting unit 210 can be bidirectional, dc to DC converter, the height
Pressure load 220 can be the components such as the motor of vehicle.By taking the high-voltage load 220 is the motor of vehicle as an example, in vehicle launch
When, it is powered from cell apparatus to driving device, and when vehicle is not actuated, then it is powered by vehicle battery 230 for driving device.
When vehicle is not actuated, since the voltage of vehicle battery 230 is relatively low, when the control source of vehicle battery 230
During to bi-directional voltage lifting unit 210, under control of the control signal, the electricity that will be inputted by bi-directional voltage lifting unit 210
Pressure raising, and by the voltage output after raising to high-voltage load 220.
And in vehicle launch, under control of the control signal, the output voltage of cell apparatus can be without bi-directional voltage
Lifting unit 210 carries out voltage transformation, and is directly inputted into high-voltage load 220, after the completion for the treatment of that high-voltage load 220 powers on, by double
The output voltage of cell apparatus is reduced to the voltage that vehicle battery 230 can bear, then will drop to voltage up-down unit 210
Control source after low is to vehicle battery 230.Can also the output voltage of cell apparatus be not input to high-voltage load 220 it
Before, the output voltage of itself is increased to by suitable voltage value by the bi-directional voltage lifting unit 210 that signal is controlled first to control,
Subsequent charging process is carried out again.
Relative to existing driving device, using bi-directional voltage lifting unit rather than unidirectional voltage lifting unit, according to need
Not only the output voltage of itself can be reduced, but also the output voltage of itself can be increased, it can be in the need for preferably meeting user
It asks.
It should be noted that second outer connection component 240 is similar with the first outer connection component of above-mentioned cell apparatus,
As long as driving device 20 is enabled to be attached with other devices.For example, when first outer connection component is high pressure
During connector, second outer connection component 240 can be set as patching with the high pressure that first outer connection component couples
Part.In this way, driving device 20 can be connect with the cell apparatus.
Referring to Fig. 3, the embodiment of the present invention additionally provides a kind of drive system, and the drive system includes above-mentioned battery
Device 310 and above-mentioned driving device 320.The cell apparatus 310 passes through the first outer connection component 3102 and the driving
Second outer connection component 3202 of device 320 couples.Below with 3102 and second outer connection component of the first outer connection component
3202 be to illustrate for high-voltage connector, i.e., high pressure communication is established between cell apparatus 310 and driving device 320.
After driving device 320 and cell apparatus 310 are coupled, the bi-directional voltage lifting unit of driving device 320
3204 or cell apparatus 310 battery control unit 3104 receive corresponding control signal after, the bi-directional voltage lifting
Unit 3204 establishes communication connection with battery control unit 3104.Wherein, the control signal can be the drive system
The enabling signal of enabling signal or vehicle.
When vehicle is not actuated, the voltage of vehicle battery 3206 is after the raising of bi-directional voltage lifting unit 3204, Xiang Gao
3208 power supply of pressure load.Wherein, the output voltage of bi-directional voltage lifting unit 3204 can be carried out by battery control unit 3104
Control, i.e., battery control unit 3104 exports corresponding output voltage desired value, two-way electricity to bi-directional voltage lifting unit 3204
Pressure lifting unit 3204 increases the output voltage of itself according to the output voltage desired value received.In this way, in vehicle launch,
From cell apparatus 310 to driving device 320 charge when, battery control unit 3104 monitor 3106 both ends of first switch voltage
Difference can quickly be less than or equal to preset voltage difference, and then can quickly charge for driving device 320.
In vehicle launch, battery control unit 3104 is controlled after second switch 3108 is closed, when monitoring that first opens
When closing the voltage difference at 3106 both ends less than or equal to preset voltage difference, control first switch 3106 is closed, and then is high-voltage load
3208 chargings.After high-voltage load 3208 powers on completion, battery control unit 3104 is again to bi-directional voltage lifting unit 3204
Control signal is sent, control bi-directional voltage lifting unit 3204 reduces the output voltage of itself, in this way, can be by cell apparatus
310 output voltage is input to vehicle battery 3206 after reducing.
During high-voltage load 3208 or vehicle battery 3206 are electrically charged, battery control unit 3104 is to two-way electricity
It presses in the control signal that lifting unit 3204 is sent, the information such as the parameter of charging, such as the shape of battery pack 3110 can also be included
The information such as state parameter, it is more preferable with battery control unit 3104 bi-directional voltage lifting unit 3204 to be controlled to adjust the output of itself
Ground coordinates, so as to complete the charging to high-voltage load 3208 or vehicle battery 3206.
In order to which those skilled in the art are better achieved and understand the present invention, referring to Fig. 4, the embodiment of the present invention also carries
A kind of and corresponding control method of above-mentioned drive system is supplied, the control method includes：
Step 410：When the drive system receives enabling signal, supervised by the battery control unit of the cell apparatus
Survey the voltage at the first switch both ends of the cell apparatus；
Step 420：When the voltage difference at the first switch both ends is less than preset voltage difference, the battery control unit
The first switch is controlled to be closed, the cell apparatus charges to the high-voltage load of the driving device；
Step 430：After the high-voltage load charging complete, the battery control unit is double to the driving device
Corresponding control signal is sent to voltage up-down unit, and the cell apparatus is through the bi-directional voltage lifting unit to external loading
Charging.
In specific implementation, when bi-directional voltage lifting unit receives the corresponding control of the battery control unit transmission
After signal, the output voltage of itself is reduced according to the control signal, and by the voltage output after reduction to external loading.
In specific implementation, before the battery control unit controls the first switch closure, the battery control is single
Member can also send output voltage desired value to the bi-directional voltage lifting unit.The bi-directional voltage lifting unit is according to reception
To output voltage desired value increase the voltage of itself so that the voltage difference at the first switch both ends is less than or equal to as soon as possible
Preset voltage difference.
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (9)
1. a kind of drive system, which is characterized in that including cell apparatus, the cell apparatus includes：Battery control unit, battery
Group, the first switch being connect with the battery anode and connect with the battery electrode and the first switch
One outer connection component；The battery control unit is suitable for monitoring the voltage at the first switch both ends, and in the first switch
When the voltage difference at both ends is less than or equal to preset voltage difference, the first switch is controlled to be closed, to export the cell apparatus
Voltage；
The drive system further includes driving device, and the cell apparatus is filled by first outer connection component and the driving
The the second outer connection component coupling put；
The driving device includes：Bi-directional voltage lifting unit, suitable for receiving control signal and input signal, and in the control
Under the control of signal, the voltage of the input signal is raised and lowered and by the control source after being raised and lowered
To external loading；The high-voltage load being connected in parallel with the bi-directional voltage lifting unit；And with connecting outside the first of cell apparatus
Second outer connection component of relay part coupling, so that the cell apparatus is the external loading or described of the driving device
High-voltage load charges.
2. drive system as described in claim 1, which is characterized in that the cell apparatus further includes：It is born with the battery pack
The second switch that pole is connected with first outer connection component.
3. drive system as claimed in claim 2, which is characterized in that the first switch be anode relay, described second
It switchs as the cathode relay that charges.
4. drive system as claimed in claim 2, which is characterized in that the first switch is charging anode relay, described
Second switch is cathode relay.
5. the drive system as described in any one of claim 1-4, which is characterized in that the battery control unit be further adapted for
The bi-directional voltage lifting unit sends output voltage desired value, and the bi-directional voltage lifting unit is according to the output electricity received
Pressure desired value increases the output voltage of itself.
6. drive system as claimed in claim 5, which is characterized in that the battery control unit is further adapted for the two-way electricity
Lifting unit is pressed to send corresponding control signal；The bi-directional voltage lifting unit reduces itself according to the control signal received
Output voltage.
7. the drive system as described in any one of claim 1-4, which is characterized in that the bi-directional voltage lifting unit is double
To DC-to-DC converter.
8. a kind of control method of drive system, which is characterized in that the drive system includes cell apparatus and driving dress
It puts, the driving device includes：Bi-directional voltage lifting unit, suitable for receiving control signal and input signal, and in the control
Under the control of signal, the voltage of the input signal is raised and lowered and by the control source after being raised and lowered
To external loading；The high-voltage load being connected in parallel with the bi-directional voltage lifting unit；And with connecting outside the first of cell apparatus
Second outer connection component of relay part coupling, so that the cell apparatus is the external loading or described of the driving device
High-voltage load charges, and the control method includes：
When the drive system receives enabling signal, the battery is monitored by the battery control unit of the cell apparatus and is filled
The voltage at first switch both ends put；
When the voltage difference at the first switch both ends is less than preset voltage difference, the battery control unit control described first
Switch is closed, and the cell apparatus charges to the high-voltage load of the driving device；
After the high-voltage load charging complete, the battery control unit lifts single to the bi-directional voltage of the driving device
Member sends corresponding control signal, and the cell apparatus charges through the bi-directional voltage lifting unit to external loading.
9. the control method of drive system as claimed in claim 8, which is characterized in that the control method further includes：
The battery control unit sends output voltage desired value, the bi-directional voltage lifting to the bi-directional voltage lifting unit
Unit increases the voltage of itself according to the output voltage desired value received.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410219848.3A CN105098863B (en) | 2014-05-22 | 2014-05-22 | Cell apparatus, driving device, the control method of drive system and drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410219848.3A CN105098863B (en) | 2014-05-22 | 2014-05-22 | Cell apparatus, driving device, the control method of drive system and drive system |
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| Publication Number | Publication Date |
|---|---|
| CN105098863A CN105098863A (en) | 2015-11-25 |
| CN105098863B true CN105098863B (en) | 2018-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410219848.3A Active CN105098863B (en) | 2014-05-22 | 2014-05-22 | Cell apparatus, driving device, the control method of drive system and drive system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109823180B (en) * | 2017-11-22 | 2022-04-26 | 上海汽车集团股份有限公司 | Pre-charging circuit of power battery |
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| CN102290856A (en) * | 2011-08-17 | 2011-12-21 | 深圳科力远新能源有限公司 | Double-power device and power supplying method thereof |
| CN103568861A (en) * | 2012-07-23 | 2014-02-12 | 福特全球技术公司 | Low cost charger circuit with pre-charge functionality |
| CN203859564U (en) * | 2014-05-22 | 2014-10-01 | 上海汽车集团股份有限公司 | Battery device, charging device and charging system |
| CN104821611A (en) * | 2014-02-04 | 2015-08-05 | 三星Sdi株式会社 | Battery tray, battery rack, energy system, and method of operating the battery tray |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102263503B (en) * | 2010-05-31 | 2013-10-30 | 比亚迪股份有限公司 | Bidirectional DC/DC (direct current/direct current) control system and working method thereof |
| JP5865013B2 (en) * | 2011-10-27 | 2016-02-17 | 三洋電機株式会社 | Power supply device for vehicle and vehicle provided with this power supply device |
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2014
- 2014-05-22 CN CN201410219848.3A patent/CN105098863B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290856A (en) * | 2011-08-17 | 2011-12-21 | 深圳科力远新能源有限公司 | Double-power device and power supplying method thereof |
| CN103568861A (en) * | 2012-07-23 | 2014-02-12 | 福特全球技术公司 | Low cost charger circuit with pre-charge functionality |
| CN104821611A (en) * | 2014-02-04 | 2015-08-05 | 三星Sdi株式会社 | Battery tray, battery rack, energy system, and method of operating the battery tray |
| CN203859564U (en) * | 2014-05-22 | 2014-10-01 | 上海汽车集团股份有限公司 | Battery device, charging device and charging system |
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