CN114919453B - Battery changing control system and method - Google Patents
Battery changing control system and method Download PDFInfo
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- CN114919453B CN114919453B CN202210482385.4A CN202210482385A CN114919453B CN 114919453 B CN114919453 B CN 114919453B CN 202210482385 A CN202210482385 A CN 202210482385A CN 114919453 B CN114919453 B CN 114919453B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/80—Exchanging energy storage elements, e.g. removable batteries
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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
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Abstract
The invention discloses a power conversion control system and a power conversion control method. Wherein the system comprises: a control unit and a power conversion device; the control unit is used for determining the type of the battery suitable for the electric vehicle; selecting a first battery rack from at least one battery rack, and selecting a second battery rack from the at least one battery rack; the battery replacement device is used for moving to a preset battery replacement position, taking down the power-shortage battery from the electric vehicle, transporting the power-shortage battery to the second placing rack and placing the power-shortage battery in the empty battery placing bin, then moving to the first battery placing rack, taking down the battery of the battery model from the first battery placing rack, transporting the battery of the battery model to the preset battery replacement position and installing the battery in the electric vehicle, wherein the preset battery replacement position is a position suitable for taking and installing the battery from the electric vehicle. The invention can reduce the moving times of the power conversion equipment in the power conversion process, shorten the power conversion time consumption and improve the power conversion efficiency.
Description
The present application is a divisional application of chinese patent application with application date 2018, month 07, day 20, application number 201810805309.6, and inventive name of "power conversion control system and method".
Technical Field
The invention belongs to the field of power conversion control, and particularly relates to a power conversion control system and method.
Background
The existing electric automobile mainly has two power exchanging modes, namely a direct charging mode and a quick-changing mode of a replaceable battery.
The quick-change type battery charging system is characterized in that the quick-change type battery charging system is usually carried out in a power change station, after a vehicle enters the power change station and is parked on a vehicle carrying platform, the power change equipment of the power change station moves to the lower side of the vehicle carrying platform, batteries with insufficient or no electricity on the vehicle are taken down, the batteries are put on a unified charging frame to be charged, and then the power change equipment takes down new or full-electricity batteries from the charging frame to be charged into the vehicle. In the mode, the power conversion equipment needs to be moved for many times, the power conversion consumption is long, and the efficiency is low.
Disclosure of Invention
The invention aims to overcome the defects of long power exchange consumption and low efficiency caused by the fact that power exchange equipment needs to move for many times in the power exchange process in the prior art.
The invention solves the technical problems through the following technical scheme:
the invention provides a power conversion control system, comprising: a control unit and a power conversion device;
the control unit is used for determining the type of the battery suitable for the electric vehicle;
The control unit is further used for selecting a battery placing rack meeting a first condition from at least one battery placing rack as a first battery placing rack, selecting a battery placing rack meeting a second condition from the at least one battery placing rack as a second battery placing rack, wherein the battery placing rack is provided with a plurality of battery placing bins for placing batteries, the first condition is set to be used for placing batteries of the battery model, and the second condition is set to be provided with empty battery placing bins;
the battery replacement device is used for moving to a preset battery replacement position, taking down the power-shortage battery from the electric vehicle, transporting the power-shortage battery to the second placing rack and placing the power-shortage battery in the empty battery placing bin, then moving to the first battery placing rack, taking down the battery of the battery model from the first battery placing rack, transporting the battery of the battery model to the preset battery replacement position and installing the battery in the electric vehicle, wherein the preset battery replacement position is a position suitable for taking and installing the battery from the electric vehicle.
Preferably, the control unit is further configured to monitor an electric quantity of a battery placed on the battery placement frame;
the first condition is set to be a full-power battery with the battery model placed;
Or, the first condition is preferably set to be that the battery with the battery model number and full power is placed, and if the at least one battery placing frame does not have the battery placing frame meeting the first condition, the first condition is modified to be that the battery with the battery model number and highest power is placed.
Preferably, the control unit is further configured to, when more than one battery rack meets the first condition, randomly select one battery rack from the battery racks meeting the first condition as the first battery rack, select one battery rack closest to the electric vehicle or a loading platform for parking the electric vehicle as the first battery rack, select one battery rack located on a path between the second battery rack and the electric vehicle as the first battery rack, or select one battery rack located on the path and closest to the electric vehicle or the loading platform as the first battery rack;
and/or the control unit is further configured to randomly select one battery rack from the battery racks meeting the second condition as the second battery rack or select one battery rack closest to the electric vehicle or the vehicle carrying platform as the second battery rack when more than one battery rack meets the second condition.
Preferably, the battery placing racks are arranged on two sides of the vehicle carrying platform along the direction of the electric vehicle entering the vehicle carrying platform.
Preferably, if there is a multifunctional battery rack in the at least one battery rack, the multifunctional battery rack is a battery rack in which the first condition and the second condition are both met, the control unit is further configured to:
and using the multifunctional battery rack as the first battery rack and the second battery rack at the same time.
Preferably, the empty battery placement bin is further used for charging the power-shortage battery.
Preferably, the empty battery placement bin is provided with a battery charging circuit;
the battery charging circuit is provided with fixed power parameters, and the power parameters are matched with the battery model;
or, the battery charging circuit has an adjustable power parameter, and the control unit is further configured to adjust the power parameter according to the battery model so that the power parameter matches the battery model.
Preferably, the control unit is further configured to scan a license plate of the electric vehicle, and determine a battery model applicable to the electric vehicle through the license plate.
Preferably, the power conversion device is controlled by the control unit:
the control unit sends the following instructions to the power conversion device and is executed by the power conversion device before the electric vehicle is parked on a vehicle carrying platform:
and the parking instruction is used for instructing the battery changing device to park in a preset waiting position in advance.
Preferably, when the preset power change position is in a parking state, the preset waiting position and the preset power change position are the same.
Preferably, when the preset power change position is in a non-berthable state, the preset waiting position is a position which is not more than a first distance threshold from the preset power change position;
the control unit is further used for sending a fine tuning instruction to the battery unloading battery changing device after the electric vehicle is parked on the vehicle carrying platform, wherein the fine tuning instruction is used for commanding the battery changing device to move from the preset waiting position to the preset battery changing position.
Preferably, the preset power change position is in a moored state when the following conditions are satisfied at the same time, otherwise, the preset power change position is in a non-moored state:
the preset power change position is a vacancy;
a passage for the power conversion equipment to move to the preset power conversion position exists;
When the battery replacement equipment is predicted to be parked at the preset battery replacement position, the battery replacement equipment cannot block an electric vehicle entering the vehicle carrying platform.
Preferably, the preset power change position is determined to be located below or above the vehicle carrying platform according to the structure of the vehicle carrying platform.
Preferably, the power conversion device is controlled by the control unit:
the control unit is further configured to send the following instructions to the electric vehicle and executed by the power conversion apparatus after the electric vehicle is parked on the vehicle loading platform:
a battery unloading instruction for instructing the battery changing device to remove the battery with low power from the electric vehicle;
the first moving instruction is used for commanding the power conversion equipment to move to the second battery placing frame;
a discharge cell instruction for instructing the battery changing device to place the battery with the lack of electricity in the empty battery placement bin;
the second moving instruction is used for commanding the power conversion equipment to move to the first battery placing frame;
a battery taking instruction, which is used for instructing the battery replacing equipment to take off the battery of the battery model from the first battery placing frame;
the third movement instruction is used for commanding the power conversion equipment to move to the preset power conversion position;
And the battery loading instruction is used for instructing the battery replacing equipment to mount the battery of the battery model to the electric vehicle.
The invention also provides a power conversion control method, which comprises the following steps:
determining a battery model applicable to the electric vehicle;
selecting a battery placing rack meeting a first condition from at least one battery placing rack as a first battery placing rack, wherein the battery placing rack is provided with a plurality of battery placing bins for placing batteries, and the first condition is set as that the batteries with the battery types are placed;
selecting a battery rack meeting a second condition from the at least one battery rack as a second battery rack, wherein the second rack is provided with an empty battery placing bin;
the power exchanging equipment is moved to a preset power exchanging position, a power shortage battery is taken down from the electric vehicle, the power shortage battery is transported to the second placing rack and placed in the empty battery placing bin, and the preset power exchanging position is a position suitable for taking and loading the battery from the electric vehicle;
and enabling the battery replacing equipment to move to the first battery placing frame, taking off the battery with the battery model from the first battery placing frame, transporting the battery with the battery model to the preset battery replacing position and installing the battery in the electric vehicle.
Preferably, the power conversion control method further includes: monitoring the electric quantity of a battery placed on the battery placing frame;
the first condition is set to be a full-power battery with the battery model placed;
or, the first condition is preferably set to be that the battery with the battery model number and full power is placed, and if the at least one battery placing frame does not have the battery placing frame meeting the first condition, the first condition is modified to be that the battery with the battery model number and highest power is placed.
Preferably, the power conversion control method further includes:
when more than one battery rack meets the first condition, randomly selecting one battery rack from the battery racks meeting the first condition as the first battery rack, or selecting one battery rack closest to the electric vehicle or a vehicle carrying platform for parking the electric vehicle as the first battery rack, or selecting one battery rack on a path between the second battery rack and the electric vehicle as the first battery rack, or selecting one battery rack on the path closest to the electric vehicle or the vehicle carrying platform as the first battery rack;
And/or when more than one battery rack meets the second condition, randomly selecting one battery rack from the battery racks meeting the second condition as the second battery rack, or selecting one battery rack closest to the electric vehicle or the vehicle carrying platform as the second battery rack.
Preferably, the power conversion control method further includes:
judging whether a multifunctional battery placing rack exists in the at least one battery placing rack, wherein the multifunctional battery placing rack is a battery placing rack in which the first condition and the second condition are met;
if present, then:
and using the multifunctional battery rack as the first battery rack and the second battery rack at the same time.
Preferably, the empty battery placement bin is further used for charging the power-shortage battery.
Preferably, the empty battery placement bin is provided with a battery charging circuit;
the battery charging circuit is provided with fixed power parameters, and the power parameters are matched with the battery model;
or, the battery charging circuit has an adjustable power parameter, and the battery replacement control method further includes: and adjusting the power parameter according to the battery model so as to enable the power parameter to be matched with the battery model.
Preferably, the determining a battery model applicable to the electric vehicle to be powered up specifically includes:
and scanning a license plate of the electric vehicle, and determining the type of a battery suitable for the electric vehicle through the license plate.
Preferably, the power conversion device control method further includes:
and before the electric vehicle is parked on the vehicle carrying platform, the battery changing device is parked in a preset waiting position in advance.
Preferably, when the preset power change position is in a parking state, the preset waiting position and the preset power change position are the same.
Preferably, when the preset power change position is in a non-berthable state, the preset waiting position is a position which is not more than a first distance threshold from the preset power change position;
the power conversion control method further comprises the following steps:
after the electric vehicle is parked on the vehicle carrying platform, the power exchanging device is moved from the preset waiting position to the preset power exchanging position.
Preferably, the preset power change position is in a moored state when the following conditions are satisfied at the same time, otherwise, the preset power change position is in a non-moored state:
the preset power change position is a vacancy;
a passage for the power conversion equipment to move to the preset power conversion position exists;
When the battery replacement equipment is predicted to be parked at the preset battery replacement position, the battery replacement equipment cannot block an electric vehicle entering the vehicle carrying platform.
Preferably, the preset power change position is determined to be located below or above the vehicle carrying platform according to the structure of the vehicle carrying platform.
On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the invention.
The invention has the positive progress effects that: the invention can reduce the moving times of the power conversion equipment in the power conversion process, shorten the power conversion time consumption and improve the power conversion efficiency.
Drawings
FIG. 1 is a schematic block diagram of a power conversion control system according to embodiment 1 of the present invention;
FIG. 2 is a schematic side view of a first structure of a vehicle platform according to embodiment 1 of the present invention;
FIG. 3 is a schematic side view of a second embodiment of the vehicle platform according to the present invention;
fig. 4 is a flowchart of a power-change control method according to embodiment 6 of the present invention;
fig. 5 is a flowchart of a power conversion control method according to embodiment 10 of the present invention.
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
Example 1
Fig. 1 shows a power conversion control system of the present embodiment. The battery replacement control system 10 includes: a control unit 11 and a battery exchange device 12. The communication connection between the control unit 11 and the battery exchange device 12 is preferably a wireless communication connection, and may be specifically implemented by communication means such as 2G, 3G, 4G, bluetooth, etc., which is not limited in certain special cases (e.g. the control unit 11 is very close to the battery exchange device 12 and the range of motion of the battery exchange device 12 is very small), and the communication connection may also be a wired communication connection.
The control unit 11 is used to determine the type of battery for which the electric vehicle is suitable. Specifically, the control unit 11 may scan a license plate of the electric vehicle, and determine a battery model to which the electric vehicle is applicable through the license plate.
The control unit 11 is further configured to select a battery rack meeting a first condition from at least one battery rack 13 as a first battery rack 13A, select a battery rack meeting a second condition from the at least one battery rack 13 as a second battery rack 13B, where the battery rack has a plurality of battery storage bins for storing batteries, the first condition is set to store batteries of the battery model, and the second condition is set to have an empty battery storage bin.
The battery replacing device 12 is configured to move to a preset battery replacing position, remove a battery with no power from the electric vehicle, transport the battery with no power to the second placing frame 13B and place the battery in the empty battery placing compartment, then move to the first battery placing frame 13A, remove the battery with the battery model from the first battery placing frame 13A, transport the battery with the battery model to the preset battery replacing position and install the battery in the electric vehicle, where the preset battery replacing position is a position suitable for taking and installing the battery from the electric vehicle.
In this embodiment, the control unit 11 confirms the battery model applicable to the electric vehicle, so as to conveniently select the first battery rack; in the whole process of vehicle power conversion, the power conversion equipment 12 moves smoothly, and the power conversion speed and efficiency are improved.
In this embodiment, the preset power change position may be understood as that when the power change device 12 is located at the preset power change position, the battery may be removed from the electric vehicle or installed to the electric vehicle with a minimum of actions. The preset power change position can be specifically determined to be positioned below or above the vehicle carrying platform according to the structure of the vehicle carrying platform for parking the electric vehicle.
Taking the vehicle carrying platform with the first structure as an example, as shown in fig. 2, the vehicle carrying platform 15 is higher than the ground plane and has a hollow area in the middle, when the electric vehicle 14 needs to be parked on the vehicle carrying platform 15 and the battery box of the electric vehicle 14 is located above the hollow area, for the vehicle carrying platform 15 with the first structure, the preset power exchanging position P1 is usually located below the vehicle carrying platform, especially below the hollow area and aligned to the battery outer box of the electric vehicle 14. For the electric vehicle 14 parked on the vehicle-carrying platform 15 for power exchange, the power exchange device 12 only needs to vertically lift an unlocking mechanism for unlocking the power-failure battery from the electric vehicle at the preset power exchange position P1, penetrate through the hollowed-out area, insert the unlocking mechanism into a gap between a battery outer box and a battery of the electric vehicle 14, and touch a shifting block for locking the battery box, so that the power-failure battery can be unlocked, and the power-failure battery can be taken down. Similarly, in the preset power change position P1, the power change device 12 is installed by simply lifting up the battery to be incorporated in the electric vehicle vertically.
Taking the second structure of the vehicle-carrying platform as an example, as shown in fig. 3, a lifting platform 151 is provided in the middle of the vehicle-carrying platform 15, a hollow area is provided in the middle of the lifting platform 151, when the electric vehicle 14 needs to drive into the vehicle-carrying platform 15 and park on the lifting platform 151, and the battery box of the electric vehicle 14 is located above the hollow area, for the vehicle-carrying platform 15 with this structure, the preset power-changing position P2 is usually located above the vehicle-carrying platform 15, especially below the hollow area after the lifting platform 151 is lifted. For the electric vehicle 14 parked on the lifting platform 151 for power conversion, the power conversion device 12 only needs to vertically lift an unlocking mechanism for unlocking the power-failure battery from the electric vehicle 14 at the preset power conversion position P2, penetrate through the hollowed-out area, insert the unlocking mechanism into a gap between a battery outer box and a battery of the electric vehicle 14, and touch a shifting block for locking the battery box, so that the power-failure battery can be unlocked, and the power-failure battery can be taken down. Similarly, in the preset power change position P2, the power change device 12 is installed by simply lifting up the battery to be incorporated in the electric vehicle vertically.
Of course, the vehicle-mounted platform is not limited to the above-mentioned structure, and may have other structures, and the preset power-changing position may be further set in combination with conditions such as a movement path of the power-changing device 12 for taking out the power-shortage battery or a structure required for installing the battery, according to the structure of the vehicle-mounted platform.
Example 2
The power conversion control system of the present embodiment is a further improvement on the basis of embodiment 1, and is mainly embodied in the setting of the first condition. The first condition is used as a basis for selecting the first battery holder 13A, and other preferable matching conditions may be further set in addition to the battery of the battery model being necessarily placed. In this embodiment, the matching condition is mainly related to the electric quantity of the battery, and the control unit 11 is further configured to monitor the electric quantity of the battery placed on the battery rack.
Specifically, the first condition may be set to a battery that is full of electricity and has the battery model placed therein. Accordingly, the control unit 11 is configured to determine whether a battery rack that meets the first condition exists in the at least one battery rack, and if so, select one of the battery racks as the first battery rack 13A. If there is no battery rack meeting the first condition, the control unit 11 may send an alarm signal to indicate that the electric vehicle cannot be powered up.
Or, in order to increase the probability of being able to change the power of the electric vehicle, the first condition may be preferentially set to a battery with the battery model and full power, and if the at least one battery rack does not have a battery rack that meets the first condition, the first condition is modified to be set to a battery with the battery model and highest power. Correspondingly, the first condition is set as a default to be that the battery model is placed and the battery is full, and the control unit 11 is configured to determine whether a battery rack meeting the default first condition exists in the at least one battery rack, if so, select one of the battery racks as the first battery rack 13A, and if not, then:
and setting the first condition modification as a battery with the highest battery model and the highest electric quantity, judging whether a battery rack conforming to the current first condition exists in the at least one battery rack again, and if so, selecting one of the battery racks as a first battery rack 13A. If there is no battery rack meeting the first condition, the control unit 11 may send an alarm signal to indicate that the electric vehicle cannot be powered up.
In addition, in this embodiment, the empty battery placement bin is further used to charge the battery with no electricity. In particular, the empty battery placement bin has a battery charging circuit that may have a fixed power parameter that matches the battery model; or, the battery charging circuit has an adjustable power parameter, and the control unit is further configured to adjust the power parameter according to the battery model so that the power parameter matches the battery model. The power parameters include current, voltage, etc.
Of course, in other embodiments, the first condition may be set to other conditions as desired.
Example 3
The battery replacement control system of the present embodiment is a further improvement based on embodiment 1 or 2, and is mainly characterized in that the control unit 11 selects the first battery placing frame 13A and the second battery placing frame 13B. When the number of battery racks is two or more, it is likely that two or more battery racks match the first condition or the second condition at the same time. The control unit 11 may further set selection requirements of the first battery rack 13A and the second battery rack 13B according to requirements.
In this embodiment, in order to cope with a case where two or more battery racks meet the first condition at the same time, the control unit 11 may be configured to determine whether or not there is more than one battery rack meeting the first condition, and if so:
randomly selecting one battery rack from the battery racks meeting the first condition as the first battery rack 13A;
or, in order to shorten the movement path and movement time of the battery changing device 12 and to increase the battery changing efficiency, selecting, as the first battery rack 13A, one of the battery racks closest to the electric vehicle or one of the battery racks closest to a vehicle platform rack for parking the electric vehicle, from among the battery racks conforming to the first condition;
or selecting one battery rack on a path between the second battery rack and the electric vehicle as the first battery rack, or selecting one battery rack which is positioned on the path and is closest to the electric vehicle or the vehicle carrying platform as the first battery rack.
Of course, if there is only one battery rack satisfying the first condition, it is generally only possible to use it as the first battery rack 13A.
Likewise, in order to cope with a case where two or more battery racks meet the second condition at the same time, the control unit 11 may be configured to determine that more than one battery rack meets the second condition, if so:
randomly selecting one battery rack from the battery racks meeting the second condition as the second battery rack 13B;
alternatively, in order to shorten the movement path and movement time of the battery changing device 12 and to increase the battery changing efficiency, one of the battery racks closest to the electric vehicle or one closest to the vehicle platform rack for parking the electric vehicle is selected as the second battery rack 13B.
Of course, if there is only one battery rack satisfying the second condition, it can be generally used only as the second battery rack 13B.
In order to further facilitate positioning of the battery placing frames, selecting the first battery placing frame 13A/the second battery placing frame 13B and shortening the moving path of the battery changing device 12, the battery placing frames can be arranged on two sides of the vehicle carrying platform along the direction of the electric vehicle driving into the vehicle carrying platform. The vehicle-carrying platform can be a special platform for vehicle power exchange or other common platforms which can be used for parking vehicles and are convenient for power exchange.
In this embodiment, the selection of the first battery rack 13A and the second battery rack 13B is relatively independent, that is, the selection requirements of the first battery rack 13A and the second battery rack 13B may be set according to different requirements.
Example 4
The battery replacement control system of the present embodiment is a further improvement based on embodiment 1 or 2, and is mainly characterized in that the control unit 11 selects the first battery placing frame 13A and the second battery placing frame 13B. Unlike embodiment 3, in this embodiment, the association between the first battery holder 13A and the second battery holder 13B is considered to some extent when selecting them.
Specifically, the control unit 11 may be configured to determine whether a multifunctional battery rack exists in the at least one battery rack, where the multifunctional battery rack is a battery rack that meets both the first condition and the second condition.
If the multifunctional battery rack is not present, the first battery rack 13A may be selected from the battery racks conforming to the first condition and the second battery rack 13B may be selected from the battery racks conforming to the second condition, respectively, according to the scheme of embodiment 3.
If the multifunctional battery rack is present, the control unit 11 may further use the multifunctional battery rack as the first battery rack and the second battery rack at the same time. Thereby reducing the travel distance of the power exchange device 12.
Example 5
The power conversion control system of the present embodiment is a further improvement based on embodiment 1, and is mainly embodied in the control process of the control unit 11 on the power conversion device 12. The whole power change process can be divided into a power change preparation process before the electric vehicle is parked on the vehicle carrying platform and a power change operation process after the electric vehicle is parked on the vehicle carrying platform.
The battery changing device 12 is controlled by the control unit 11.
In the power-change preparation process, the control unit 11 transmits the following instructions to the power-change device 12 and is executed by the power-change device 12:
a parking instruction for instructing the battery changing device 12 to park in advance in a preset waiting position. The preset waiting position is related to the preset swap position, and may be the same position as the preset swap position or a position near the preset swap position.
Specifically, the control unit 11 determines whether the preset exchange potential is in a moored state, thereby setting the preset waiting position. When the following conditions are satisfied simultaneously, the preset power change position is in a berthable state, otherwise, the preset power change position is in a non-berthable state:
Condition (1): the preset power change position is a vacancy;
condition (2): there is a path for the battery exchange device 12 to move to the preset battery exchange position;
condition (3): when the battery changing device 12 is predicted to be parked at the preset battery changing position, the battery changing device 12 does not block the electric vehicle entering the vehicle carrying platform.
Whether the condition (3) can be satisfied is generally related to the structure of the vehicle-mounted platform.
Taking the vehicle carrying platform with the first structure in embodiment 1 as an example, since the electric vehicle is parked on the vehicle carrying platform when changing electricity, and the preset change electric position is generally located below the vehicle carrying platform, in general, even if the electric vehicle is parked at the preset change electric position before the electric vehicle is driven into the vehicle carrying platform, the electric vehicle is not blocked by the electric vehicle moving into the vehicle carrying platform by the electric vehicle changing device 12, and the condition (3) can be satisfied.
Taking the vehicle carrying platform of the second structure in embodiment 1 as an example, since the electric vehicle is parked on the lifting platform when changing electricity, and the preset change electric position is also located above the vehicle carrying platform, if the electricity changing device 12 is parked at the preset change electric position before the electric vehicle is driven into the vehicle carrying platform, the electricity changing device 12 is likely to block the driven electric vehicle when the electric vehicle is driven into the vehicle carrying platform. Therefore, for the second structure of the vehicle-carrying platform, the preset change position cannot generally meet the condition (3), and is in a non-berthable state.
When the preset power change position is in a mooring state, the preset waiting position and the preset power change position are in the same position. When the preset power change position is in a non-mooring state, the preset waiting position is a position which is not more than a second distance threshold from the preset power change position, namely a position near the preset power change position.
The power change preparation process is completed, and the power change control system waits for the electric vehicle to drive into and park on the vehicle carrying platform so as to enter the power change operation process.
During the power-changing operation, the control unit 11 determines whether the preset waiting position and the preset power-changing position are the same position:
if yes, a battery unloading instruction is sent to the battery changing equipment 12, the battery unloading instruction is used for instructing the battery changing equipment 12 to take off the battery lack from the electric vehicle, and the battery unloading instruction is executed by the battery changing equipment 12;
if not, a fine tuning instruction is sent to the power exchange device 12, the fine tuning instruction is used for commanding the power exchange device 12 to move from the preset waiting position to the preset power exchange position, and the power exchange device 12 executes the fine tuning instruction; then, after the battery exchange device 12 executes the fine tuning instruction, the control unit 11 sends the battery unloading instruction to the battery exchange device 12, and the battery unloading instruction is executed by the battery exchange device 12.
Then, the control unit 11 sends a first movement instruction to the battery changing device 12, where the first movement instruction is used to instruct the battery changing device to move to the second battery rack; the battery exchange device 12 executes the first movement instruction.
Then, the control unit 11 sends a discharge cell instruction to the battery replacing device 12, wherein the discharge cell instruction is used for instructing the battery replacing device to place the battery with the lack of electricity in the empty battery placing bin; the battery exchange device 12 executes the battery command.
Then, the control unit 11 sends a second movement instruction to the battery changing device 12, where the second movement instruction is used to instruct the battery changing device to move to the first battery rack; the battery exchange device 12 executes the second movement instruction.
Then, the control unit 11 sends a battery taking instruction to the battery replacing device 12, where the battery taking instruction is used to instruct the battery replacing device to take off the battery of the battery model from the first battery placing rack; the battery-charging device 12 executes the battery-charging instruction.
Then, the control unit 11 sends a third movement instruction to the power conversion device 12, where the battery taking instruction is used to instruct the power conversion device to move to the preset power conversion position; the battery-charging device 12 executes the battery-charging instruction.
Then, the control unit 11 transmits a battery pack instruction for instructing the battery pack to mount the battery of the battery model to the electric vehicle to the battery change device 12; the battery change device 12 executes the battery pack instruction.
So far, the electric vehicle finishes the power change, and the control unit 11 commands the power change device 12 to leave the preset power change position.
The power change control system of the embodiment completes partial control in the power change preparation process, greatly shortens the power change time after the electric vehicle is driven into the vehicle carrying platform, and improves the power change efficiency.
Example 6
Fig. 4 shows a power conversion control method of the present embodiment. The power conversion control method comprises the following steps:
and 21, determining a battery model suitable for the electric vehicle. Specifically, a license plate of the electric vehicle may be scanned, and a battery model suitable for the electric vehicle may be determined through the license plate.
And 24, enabling the power changing equipment to move to a preset power changing position, taking off the power shortage battery from the electric vehicle, transporting the power shortage battery to the second placing rack and placing the power shortage battery in the empty battery placing bin, wherein the preset power changing position is a position suitable for taking and placing the battery from the electric vehicle.
In this embodiment, the battery model applicable to the electric vehicle is confirmed, so that the first battery placing rack can be conveniently selected; in the whole process of vehicle power conversion, the power conversion equipment moves smoothly, and the power conversion speed and efficiency are improved.
In this embodiment, the preset power exchange position may be understood as that when the power exchange device is located at the preset power exchange position, the battery may be removed from the electric vehicle or installed to the electric vehicle through a minimum action. The preset power change position can be specifically determined to be positioned below or above the vehicle carrying platform according to the structure of the vehicle carrying platform for parking the electric vehicle.
Example 7
The power conversion control method of the present embodiment is a further improvement on the basis of embodiment 6, and is mainly represented by the setting of the first condition. The first condition is used as a basis for selecting the first battery placing frame, and other preferable matching conditions can be further set besides the batteries with the battery models. In this embodiment, the matching condition is mainly related to the electric quantity of the battery, and the power conversion control method further includes: and monitoring the electric quantity of the battery placed on the battery placing frame.
Specifically, the first condition is set to a battery that is full of electricity and has the battery model placed therein. Accordingly, step 22 determines whether a battery rack satisfying the first condition exists in the at least one battery rack, and if so, selects one of the battery racks as the first battery rack. And if the battery rack meeting the first condition does not exist, sending an alarm signal to prompt that the electric vehicle cannot be replaced.
Or, in order to increase the probability of being able to change the power of the electric vehicle, the first condition is preferably set to be that the battery with the battery model number and full power is placed, and if the at least one battery placing frame does not have the battery placing frame conforming to the first condition, the first condition is modified to be that the battery with the battery model number and highest power is placed. Correspondingly, the first condition is set as a default to be that the battery model is placed and the battery is full, and step 22 judges whether a battery rack meeting the default first condition exists in the at least one battery rack, if so, one of the battery racks is selected as the first battery rack, and if not, then:
And setting the first condition modification as a battery with the highest battery model and the highest electric quantity, judging whether a battery rack conforming to the current first condition exists in the at least one battery rack again, and if so, selecting one of the battery racks as the first battery rack. If the battery placing rack meeting the first condition still does not exist, an alarm signal can be sent out to prompt that the electric vehicle cannot be electrified.
In addition, in this embodiment, the empty battery placement bin is further used to charge the battery with no electricity. In particular, the empty battery placement bin has a battery charging circuit that may have a fixed power parameter that matches the battery model; or, the battery charging circuit has an adjustable power parameter, and the control unit is further configured to adjust the power parameter according to the battery model so that the power parameter matches the battery model. The power parameters include current, voltage, etc.
Of course, in other embodiments, the first condition may be set to other conditions as desired.
Example 8
The battery replacement control method of the present embodiment is a further improvement based on embodiment 6 or 7, and is mainly represented by selection of the first battery holder and the second battery holder. When the number of battery racks is two or more, it is likely that two or more battery racks match the first condition or the second condition at the same time. The method can further set selection requirements of the first battery placing frame and the second battery placing frame according to requirements.
In this embodiment, in order to cope with a situation that two or more battery racks meet the first condition at the same time, step 22 further includes determining whether more than one battery rack meets the first condition, if yes:
or, in order to shorten the moving path and moving time of the battery changing device and accelerate the battery changing efficiency, selecting one battery placing rack closest to the electric vehicle or one battery placing rack closest to a vehicle carrying platform rack for parking the electric vehicle from battery placing racks meeting the first condition as the first battery placing rack;
or selecting one battery rack on a path between the second battery rack and the electric vehicle as the first battery rack, or selecting one battery rack which is positioned on the path and is closest to the electric vehicle or the vehicle carrying platform as the first battery rack.
Of course, if there is only one battery rack meeting the first condition, it is generally only possible to use it as the first battery rack.
Similarly, in order to cope with the case where two or more battery holders simultaneously meet the second condition, step 23 further includes determining that more than one battery holder meets the second condition, if yes:
Randomly selecting one battery rack from the battery racks meeting the second condition as the second battery rack;
or, in order to shorten the moving path and moving time of the battery changing device and accelerate the battery changing efficiency, selecting one battery rack closest to the electric vehicle or one battery rack closest to a vehicle carrying platform rack for parking the electric vehicle from the battery racks meeting the second condition as the second battery rack.
Of course, if there is only one battery rack meeting the second condition, it can be generally used only as the second battery rack.
In order to further facilitate positioning of the positions of the battery placing frames, selection of the first battery placing frame/the second battery placing frame and shortening of the moving path of the battery replacing equipment, the battery placing frames can be arranged on two sides of the vehicle carrying platform along the direction that the electric vehicle is driven into the vehicle carrying platform. The vehicle-carrying platform can be a special platform for vehicle power exchange or other common platforms which can be used for parking vehicles and are convenient for power exchange.
In this embodiment, the selection of the first battery rack and the second battery rack is relatively independent, that is, the selection requirements of the first battery rack and the second battery rack may be set according to different requirements.
Example 8
The battery replacement control method of the present embodiment is a further improvement based on embodiment 6 or 7, and is mainly represented by selection of the first battery holder and the second battery holder. Unlike embodiment 7, the correlation between the first battery holder and the second battery holder is considered to some extent in the present embodiment.
Specifically, the method further includes determining whether a multifunctional battery rack exists in the at least one battery rack, where the multifunctional battery rack is a battery rack in which the first condition and the second condition are both met.
If the multifunctional battery rack is not present, a first battery rack may be selected from battery racks that meet a first condition and a second battery rack may be selected from battery racks that meet a second condition according to the scheme of embodiment 7, respectively.
If the multifunctional battery rack exists, the multifunctional battery rack can be used as the first battery rack and the second battery rack at the same time. Thereby reducing the moving distance of the power exchange device.
Example 10
The power conversion control method of the present embodiment is a further improvement based on embodiment 6, as shown in fig. 5, and is mainly embodied in a control flow of the power conversion device. The whole power change process can be divided into a power change preparation process before the electric vehicle is parked on the vehicle carrying platform and a power change operation process after the electric vehicle is parked on the vehicle carrying platform.
In a power conversion preparation flow, the power conversion control method comprises the following steps: and enabling the power conversion equipment to be parked in a preset waiting position in advance. The preset waiting position is related to the preset swap position, and may be the same position as the preset swap position or a position near the preset swap position.
In this embodiment, when the preset power change position is in the moored state, the preset waiting position and the preset power change position are the same position.
When the preset power change position is in a non-berthable state, the preset waiting position is a position which is not more than a first distance threshold from the preset power change position.
Specifically, when the following conditions are satisfied at the same time, the preset power change position is in a moored state, otherwise, the preset power change position is in a non-moored state:
the preset power change position is a vacancy;
a passage for the power conversion equipment to move to the preset power conversion position exists;
when the battery replacement equipment is predicted to be parked at the preset battery replacement position, the battery replacement equipment cannot block an electric vehicle entering the vehicle carrying platform.
And the power exchange preparation process is finished, and the electric vehicle is waited to drive in and park on the vehicle carrying platform so as to enter the power exchange operation process.
In a power conversion operation flow, the power conversion control method comprises the following steps:
judging whether the preset waiting position and the preset power-changing position are the same position or not:
if yes, the power conversion equipment is enabled to take off the power shortage battery from the electric vehicle;
if not, the power conversion equipment is moved from the preset waiting position to the preset power conversion position; then, the battery replacement device is made to remove the battery with low power from the electric vehicle;
after the battery replacement device removes the battery with the power shortage from the electric vehicle, the battery replacement device is moved to the second battery placing rack;
then, the battery replacing equipment is enabled to place the battery with the electricity shortage in the empty battery placing bin;
then, the battery replacing equipment is moved to the first battery placing frame;
then, the battery of the battery model is taken down from the first battery placing frame by the battery replacing equipment;
then, the power conversion equipment is moved to the preset power conversion position;
then, the battery replacement device is caused to mount a battery of the battery model to the electric vehicle;
and finally, driving the power conversion equipment away from the preset power conversion position.
The power change control system of the embodiment completes partial control in the power change preparation flow, greatly shortens the power change time after the electric vehicle is driven into the vehicle carrying platform, and improves the power change efficiency.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (13)
1. A power conversion control system, comprising: a control unit and a power conversion device;
the control unit is used for determining the type of the battery suitable for the electric vehicle;
the control unit is further used for selecting a battery placing rack meeting a first condition from at least one battery placing rack as a first battery placing rack, selecting a battery placing rack meeting a second condition from the at least one battery placing rack as a second battery placing rack, wherein the first battery placing rack and/or the second battery placing rack is provided with a plurality of battery placing bins for placing batteries, the first condition is set to be used for placing batteries of the battery model, and the second condition is set to be provided with empty battery placing bins;
The power conversion equipment is controlled by the control unit:
the control unit is further configured to send the following instructions to the power conversion device and be executed by the power conversion device:
the first moving instruction is used for commanding the power conversion equipment to move to the second battery placing frame;
a battery discharge instruction for instructing the battery changing apparatus to place the battery lacking electricity, which is taken down from the electric vehicle, in the empty battery placing compartment;
the second moving instruction is used for commanding the power conversion equipment to move to the first battery placing frame;
a battery taking instruction, which is used for instructing the battery replacing equipment to take off the battery of the battery model from the first battery placing frame;
the control unit is further configured to, when more than one battery rack meets the first condition, randomly select one battery rack from among the battery racks meeting the first condition as the first battery rack, or select one battery rack closest to the electric vehicle or a loading platform for parking the electric vehicle as the first battery rack, or select one battery rack located on a path between the second battery rack and the electric vehicle and closest to the electric vehicle or a loading platform for parking the electric vehicle as the first battery rack;
And/or the control unit is further configured to, when more than one battery rack meets the second condition, randomly select one battery rack from the battery racks meeting the second condition as the second battery rack, or select one battery rack closest to the electric vehicle or a vehicle carrying platform for parking the electric vehicle as the second battery rack;
if there is a multifunctional battery rack in the at least one battery rack, the multifunctional battery rack is a battery rack in which the first condition and the second condition are both met, the control unit is further configured to:
and using the multifunctional battery rack as the first battery rack and the second battery rack at the same time.
2. The power conversion control system according to claim 1, characterized in that the control unit, before sending the first movement instruction to the power conversion device, also sends the following instructions to the power conversion device and is executed by the power conversion device:
and the battery unloading instruction is used for instructing the battery replacing equipment to remove the battery lack from the electric vehicle.
3. The power conversion control system according to claim 1, characterized in that after the control unit sends a battery taking instruction to the power conversion device, the following instruction is also sent to the power conversion device and executed by the power conversion device:
The third movement instruction is used for commanding the power conversion equipment to move to a preset power conversion position;
and the battery loading instruction is used for instructing the battery replacing equipment to mount the battery of the battery model to the electric vehicle.
4. The battery change control system according to claim 1, wherein the control unit is further configured to monitor an amount of power of a battery placed on the first battery placement frame and/or the second battery placement frame;
the first condition is set to be a full-power battery with the battery model placed;
or, the first condition is set to be that the battery with the battery model and full power is placed, and if the at least one battery placing frame does not have the battery placing frame conforming to the first condition, the first condition is modified to be that the battery with the battery model and highest power is placed.
5. The battery changing control system according to claim 4, wherein the first battery placing frame and/or the second battery placing frame are arranged on both sides of the vehicle carrying platform along a direction in which the electric vehicle is driven into the vehicle carrying platform.
6. The battery change control system of claim 1, wherein the control unit is further configured to scan a license plate of the electric vehicle from which a battery model for which the electric vehicle is applicable is determined.
7. A power conversion control method, characterized by comprising:
determining a battery model applicable to the electric vehicle;
selecting a battery placing rack meeting a first condition from at least one battery placing rack as a first battery placing rack, wherein the battery placing rack is provided with a plurality of battery placing bins for placing batteries, and the first condition is set as that the batteries with the battery types are placed;
selecting a battery rack meeting a second condition from the at least one battery rack as a second battery rack, wherein the second rack is provided with an empty battery placing bin;
the battery changing device is controlled by the control unit, and after the electric vehicle is parked on the vehicle carrying platform, the method further comprises:
the control unit sends the following instructions to the electric vehicle and is executed by the power conversion apparatus:
the first moving instruction is used for commanding the power conversion equipment to move to the second battery placing frame;
a discharging cell instruction for instructing the battery changing device to place a battery with a shortage in the empty battery placing bin;
the second moving instruction is used for commanding the power conversion equipment to move to the first battery placing frame;
a battery taking instruction, which is used for instructing the battery replacing equipment to take off the battery of the battery model from the first battery placing frame;
The power conversion control method further comprises the following steps:
when more than one battery rack meets the first condition, randomly selecting one battery rack from the battery racks meeting the first condition as the first battery rack, or selecting one battery rack closest to the electric vehicle or a vehicle carrying platform for parking the electric vehicle as the first battery rack, or selecting one battery rack on a path between the second battery rack and the electric vehicle and closest to the electric vehicle or a vehicle carrying platform for parking the electric vehicle as the first battery rack;
and/or when more than one battery rack meets the second condition, randomly selecting one battery rack from the battery racks meeting the second condition as the second battery rack, or selecting one battery rack closest to the electric vehicle or a vehicle carrying platform for parking the electric vehicle as the second battery rack;
The power conversion control method further comprises the following steps:
judging whether a multifunctional battery placing rack exists in the at least one battery placing rack, wherein the multifunctional battery placing rack is a battery placing rack in which the first condition and the second condition are met;
if present, then:
and using the multifunctional battery rack as the first battery rack and the second battery rack at the same time.
8. The power conversion control method according to claim 7, characterized in that the method further comprises: the control unit sends the following instructions to the electric vehicle and is executed by the power conversion apparatus:
and the battery unloading instruction is used for instructing the battery replacing equipment to remove the battery lack from the electric vehicle.
9. The power conversion control method according to claim 7, characterized in that the method further comprises: the control unit sends the following instructions to the electric vehicle and is executed by the power conversion apparatus:
the third movement instruction is used for commanding the power conversion equipment to move to a preset power conversion position;
and the battery loading instruction is used for instructing the battery replacing equipment to mount the battery of the battery model to the electric vehicle.
10. The power conversion control method according to claim 7, characterized in that the power conversion control method further comprises: monitoring the electric quantity of the batteries placed on the first battery placing frame and/or the second battery placing frame;
The first condition is set to be a full-power battery with the battery model placed;
or, the first condition is set to be that the battery with the battery model and full power is placed, and if the at least one battery placing frame does not have the battery placing frame conforming to the first condition, the first condition is modified to be that the battery with the battery model and highest power is placed.
11. The battery change control method of claim 7, wherein the empty battery compartment is further used to charge the battery that lacks electricity.
12. The battery changing control method according to claim 11, wherein the empty battery placing compartment has a battery charging circuit;
the battery charging circuit is provided with fixed power parameters, and the power parameters are matched with the battery model;
or, the battery charging circuit has an adjustable power parameter, and the battery replacement control method further includes: and adjusting the power parameter according to the battery model so as to enable the power parameter to be matched with the battery model.
13. The power conversion control method according to claim 7, characterized in that determining a battery model to which the electric vehicle to be power-converted is applicable, specifically includes:
And scanning a license plate of the electric vehicle, and determining the type of a battery suitable for the electric vehicle through the license plate.
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| CN202210482385.4A CN114919453B (en) | 2018-07-20 | 2018-07-20 | Battery changing control system and method |
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| CN202210482385.4A CN114919453B (en) | 2018-07-20 | 2018-07-20 | Battery changing control system and method |
| CN201810805309.6A CN110733375B (en) | 2018-07-20 | 2018-07-20 | Battery replacement control system and method |
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| CN202210483962.1A Pending CN114750635A (en) | 2018-07-20 | 2018-07-20 | Battery replacement control system and method |
| CN202210483934.XA Active CN114954108B (en) | 2018-07-20 | 2018-07-20 | Battery changing control system and method |
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| CN113715671A (en) * | 2020-05-25 | 2021-11-30 | 蓝谷智慧(北京)能源科技有限公司 | Battery replacement control method and system, editable logic controller and motor controller |
| CN111806291B (en) * | 2020-07-14 | 2021-11-12 | 武汉蔚来能源有限公司 | Vehicle and battery matching method, device and system and readable storage medium |
| CN116279325B (en) * | 2023-05-25 | 2023-08-18 | 北京玖行智研交通科技有限公司 | Power exchange station bin control method and power exchange station |
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| CN114954108B (en) | 2023-06-30 |
| CN114954109A (en) | 2022-08-30 |
| CN110733375A (en) | 2020-01-31 |
| CN114954109B (en) | 2023-06-27 |
| CN114750635A (en) | 2022-07-15 |
| CN114954108A (en) | 2022-08-30 |
| CN110733375B (en) | 2022-03-22 |
| CN114919453A (en) | 2022-08-19 |
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