CN115208024A - Power supply control method, device and system and working machine - Google Patents
Power supply control method, device and system and working machine Download PDFInfo
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- CN115208024A CN115208024A CN202210910810.5A CN202210910810A CN115208024A CN 115208024 A CN115208024 A CN 115208024A CN 202210910810 A CN202210910810 A CN 202210910810A CN 115208024 A CN115208024 A CN 115208024A
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- 238000000034 method Methods 0.000 title claims abstract description 65
- 230000005611 electricity Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 7
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- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 16
- 238000004590 computer program Methods 0.000 description 6
- 210000001503 joint Anatomy 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000003032 molecular docking Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/36—Arrangements using end-cell switching
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention provides a power supply control method, a power supply control device, a power supply control system and an operating machine, wherein the method comprises the following steps: determining to establish a control connection relation with a power receiving end; receiving a power demand control signal of a power receiving end based on the control connection relation; and controlling the signal based on the power consumption requirement to supply power to the power receiving end. The invention is used for solving a series of problems caused by that the operation of the operation machinery in the prior art only depends on the three-phase alternating current of a construction site, realizes the purpose that the operation machinery as a power receiving end controls a power supply end to supply power to the operation machinery based on the self power consumption requirement, and finishes the operation efficiently and quickly.
Description
Technical Field
The invention relates to the technical field of charging and discharging of working machinery, in particular to a power supply control method, device and system and the working machinery.
Background
When the working machine works on a construction site, three-phase alternating current on the construction site is used as a main power source. When power failure occurs in a construction site, power cannot be supplied, and at this time, the working machine needs to operate by using its own power battery. However, the power consumption of the working machine is large, the time for which the power battery can continue to work is short, and if the power cannot be recovered in time at a construction site, the working machine cannot continue to work, so that the working time is increased, and the working efficiency is reduced.
Therefore, how to solve the problem of power consumption of the working machine during working is an important issue to be solved in the industry.
Disclosure of Invention
The embodiment of the invention provides a power supply control method, a power supply control device, a power supply control system and an operating machine, which are used for solving a series of problems caused by the fact that the operation of the operating machine in the prior art only depends on three-phase alternating current of a construction site, achieving the purpose that the operating machine serving as a power receiving end controls a power supply end to supply power to the operating machine based on the power consumption requirement of the operating machine, and efficiently and quickly completing the operation.
The embodiment of the invention provides a power supply control method, which comprises the following steps:
determining to establish a control connection relation with a power receiving end;
receiving an electricity demand control signal of the power receiving end based on the control connection relation;
and supplying power to the power receiving end based on the power consumption demand control signal.
According to the power supply control method provided by the embodiment of the present invention, the supplying power to the power receiving terminal based on the power consumption demand control signal includes:
judging the first battery surplus and the first preset electric quantity value of a first battery module at the power supply end based on the power demand control signal;
and when the first battery residual quantity is judged to be larger than the first preset electric quantity value, the power receiving end controls the first battery module of the power supply end to supply power to the power receiving end.
According to the power supply control method provided by the embodiment of the invention, the method further comprises the following steps:
and controlling a second battery module of the power supply end to supply power to a load of the power supply end.
According to the power supply control method provided by the embodiment of the present invention, after receiving the power demand control signal of the power receiving terminal, the method further includes:
monitoring the first residual battery quantity of a first battery module of the power supply end and the second residual battery quantity of a second battery module of the power supply end;
generating a battery power supply mode based on the first remaining battery quantity, the second remaining battery quantity and the operation state of the power supply terminal, wherein the operation state comprises: the power supply state that the power supply end supplies power to the power receiving end, or the non-power supply state that the power supply end does not supply power to the power receiving end.
According to the power supply control method provided by the embodiment of the present invention, the generating a battery power supply manner based on the first remaining battery amount, the second remaining battery amount, and the operation state of the power supply terminal includes:
and when the operation state is the power supply state, the first battery surplus is greater than a first preset electric quantity value, and the second battery surplus is less than or equal to a second preset electric quantity value, generating a battery power supply mode for sending an output power increasing request to the power receiving end, wherein the output power increasing request is used for enabling the power receiving end to control the first battery module to supply power to the second battery module.
According to the power supply control method provided by the embodiment of the present invention, the generating a battery power supply manner based on the first remaining battery amount, the second remaining battery amount, and the operation state of the power supply terminal includes:
when the operation state is the power supply state and the first battery residual quantity is smaller than or equal to a first preset electric quantity value, receiving a first auxiliary power supply request sent by the power receiving end;
and when the second battery residual quantity is larger than a second preset electric quantity value, generating a battery power supply mode for controlling a second battery module of the power supply end to supply power to the power receiving end.
According to the power supply control method provided by the embodiment of the present invention, the generating a battery power supply manner based on the first remaining battery amount, the second remaining battery amount, and the operation state of the power supply terminal includes:
when the operation state is the power supply state and the first battery residual quantity is smaller than or equal to the first preset electric quantity value, the second battery module is used for supplying power to the power receiving end;
and when the second battery residual quantity is less than or equal to the second preset electric quantity value, generating a battery power supply mode for controlling the second battery module of the power supply end to stop supplying power to the power receiving end.
According to the power supply control method provided by the embodiment of the present invention, the generating a battery power supply manner based on the first remaining battery amount, the second remaining battery amount, and the operation state of the power supply terminal includes:
and when the operation state is the non-power supply state, the first battery residual quantity is greater than a first preset electric quantity value, and the second battery residual quantity is less than or equal to a second preset electric quantity value, generating a battery power supply mode for controlling the first battery module to supply power to a load of the power supply end.
An embodiment of the present invention further provides a power supply control device, where the device includes:
the determining module is used for determining the establishment of a control connection relation with the power receiving end;
the receiving module is used for receiving the power demand control signal of the power receiving end based on the control connection relation;
and the transmission module is used for supplying power to the power receiving end based on the power consumption demand control signal.
An embodiment of the present invention further provides a power supply control system, including: the power supply device comprises a power receiving end and a power supply end, wherein the power receiving end is electrically connected with the power supply end;
the power receiving end is used for generating a connection control request, and the connection control request is used for indicating the establishment of a control connection relation with the power supply end;
the power receiving end is also used for generating a power demand control signal and sending the power demand control signal to the power supply end;
the power supply end is used for determining the control connection relation established with the power receiving end and receiving the power utilization demand control signal based on the control connection relation; and supplying power to the power receiving end based on the power consumption demand control signal.
According to the power supply control system provided by the embodiment of the invention, the power supply end comprises: the device comprises an electric energy exchange port, a battery management module, a first battery module, a second battery module and a charge-discharge control module;
the power supply end is connected with the power receiving end through the electric energy exchange port;
the battery management module is electrically connected with the first battery module and the second battery module;
the charge and discharge control module is electrically connected with the first battery module, the second battery module and the battery management module;
the battery management module is used for monitoring the first residual battery quantity of the first battery module and the second residual battery quantity of the second battery module; generating a battery power supply mode based on the first battery residual capacity, the second battery residual capacity and the operation state of the power supply terminal; sending the battery power supply mode to the charge and discharge control module, wherein the operation state comprises: the power supply state that the power supply end supplies power to the power receiving end, or the non-power supply state that the power supply end does not supply power to the power receiving end.
And the charge and discharge control module is used for controlling the first battery module and the second battery module to discharge based on the battery power supply mode.
According to the power supply control system provided by the embodiment of the invention, the system further comprises: the peripheral power supply is electrically connected with the power supply end;
the peripheral power supply is used for supplying power to the power supply end;
the charge and discharge control module is further configured to control input modes of the first battery module and the second battery module based on the first remaining battery amount and the second remaining battery amount.
The power supply end is used for charging the first battery module and the second battery module.
An embodiment of the present invention further provides a working machine, including: a work machine body and a power supply control device for implementing the power supply control method as described in any one of the above.
According to the power supply control method, the power supply control device, the power supply control system and the operation machine, the control connection relation is established with the power receiving end, and therefore when the power supply end is controlled to supply power to the power receiving end, the control connection relation with the power receiving end needs to be established, and a power demand control signal of the power receiving end is received based on the control connection relation; furthermore, power is supplied to the power receiving end based on the power demand control signal, and therefore the invention can receive three-phase alternating current of a construction site, and can realize that the power receiving end controls the power supply end to supply power to the power receiving end based on the power demand of the power receiving end, so that the operation can be completed efficiently and quickly, and the problems that the operation time is prolonged and the operation efficiency is reduced because the operation machine cannot continue to operate due to power failure of the construction site are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic flow chart of a power supply control method provided by the present invention;
FIG. 2 is a schematic structural diagram of a power supply control system according to the present invention;
fig. 3 is a second schematic structural diagram of a power supply control system according to the present invention;
fig. 4 is a third schematic structural diagram of a power supply control system according to the present invention;
fig. 5 is a schematic structural diagram of a power supply control device provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The power supply control method, apparatus, system, and work machine of the present invention are described below with reference to fig. 1-5.
In order to clearly illustrate the power supply control method of the present invention, the description of the present invention is made in a specific scenario:
the mixer truck in the prior art comprises a pure electric mixer truck, wherein the pure electric mixer truck adopts electric energy to provide power to drive a chassis and an upper loader of the pure electric mixer truck, so that concrete is conveyed to a construction site, and then the concrete is transmitted to a pump truck so as to be pumped to a destination by the pump truck. The electric mixer truck can supplement energy for the electric mixer truck through the quick-charging or slow-charging connector.
In the prior art, a pump truck provides pumping power for pumping concrete through a power battery of the pump truck, but the pump truck has some problems, for example, the three-phase alternating current of a construction site is still used as a main power source, the preparation time in the early stage of construction is long, the three-phase alternating current is used as the power source, the construction site needs to be set according to detailed requirements, and the whole process consumes long time; for example, when power failure occurs in a construction site and power cannot be supplied, the pump truck needs to be installed by driving the power battery, the power battery can last for a short time due to high power consumption in the pumping process, and if the power cannot be recovered later in the construction site, the pumping operation cannot be continued.
The embodiment of the invention provides a power supply control method which can be applied to intelligent terminals such as mobile phones, computers, panels and the like, can also be applied to servers and can also be applied to operation machinery. When the method is applied to an intelligent terminal or a server, the connection between a power receiving end and a power supply end is determined through the intelligent terminal, a power consumption demand control signal of the power receiving end is received based on the control connection relation, and the power supply end is controlled to supply power to the power receiving end based on the power consumption demand control signal; when the method is applied to the operation machine, if the operation machine is a third-party operation machine, the power demand control signal of the power receiving end is acquired through the operation machine, then the power supply end is controlled to supply power to the power receiving end based on the power demand control signal, and if the operation machine is the power supply end, the power receiving end controls the power supply end to supply power to the power receiving end by receiving the power demand signal of the power receiving end.
The method will be described below by taking an example of application of the method to a working machine as a power supply terminal, and by taking the working machine as an example of a mixer truck described in the above-described working scenario. Since most of the pump trucks and mixer trucks are operated in cooperation, the following description will take the power receiving end as the pump truck as an example. Of course, the power supply terminal can also be a fixed power supply.
However, the description is only for illustrative purposes and is not intended to limit the scope of the present invention. Some other descriptions in the embodiments of the present invention are also given for illustration and are not intended to limit the scope of the present invention, and therefore, the descriptions are omitted.
The specific implementation of the method is shown in fig. 1:
Specifically, before receiving the power demand signal of the power receiving end, the docking identifier is received, and based on the docking identifier, the control connection relation with the power receiving end is determined.
Specifically, when the pump truck needs to take electricity to the mixer truck, the pump truck is in butt joint with the mixer truck through the electric energy conversion port in advance. And then, the mixer truck receives the butt joint identification sent by the pump truck, and based on the butt joint identification, the control connection relation with the pump truck is determined so as to determine that the pump truck and the mixer truck are in butt joint, and the pump truck and the mixer truck are locked, so that accidental interruption in the discharging process is avoided.
Of course, after the pump truck is docked with the mixer truck through the power conversion port, the mixer truck sends the docking identifier to the pump truck, so that the mixer truck determines that the pump truck and the mixer truck are docked.
When the power supply end is controlled by the power receiving end to supply power, the butt joint of the power receiving end and the power supply end is firstly completed, the control connection relation is determined, and the stability and the safety of the power supply process are ensured.
And 102, receiving an electricity demand control signal of the power receiving end based on the control connection relation.
Specifically, after the control connection relation is determined, it is determined that the power supply end and the power receiving end complete butt joint, and at the moment, the power demand control signal of the power receiving end is waited to be received, so that the power receiving end controls the power supply end to supply power to the power receiving end through the power demand control signal.
In one embodiment, after receiving the power demand control signal of the power receiving end, monitoring a first battery residual quantity of a first battery module of the power supply end and a second battery residual quantity of a second battery module of the power supply end; generating a battery power supply mode based on the first battery residual quantity, the second battery residual quantity and the operation state of the power supply terminal, wherein the operation state comprises the following steps: the power supply state that the power supply end supplies power to the power receiving end, or the non-power supply state that the power supply end does not supply power to the power receiving end.
Specifically, after receiving the power demand control signal of the pump truck, the power demand control system monitors a first battery residual quantity of a first battery module of the mixer truck and a second battery residual quantity of a second battery module of the mixer truck, and generates a battery power supply mode based on the first battery residual quantity, the second battery residual quantity and an operation state of the mixer truck, wherein the operation state comprises: the power supply state that the power supply end supplies power to the pump truck, or the non-power supply state that the power supply device does not supply power to the pump truck.
The first battery module is a power supply battery of a power supply end, and the second battery module is a self-power battery of the power supply end. The power supply battery is used for supplying power to the power receiving end, and the self-using battery is used for providing power for the self operation of the power supply end.
The invention adopts the management of the battery sub-modules, ensures that the power supply end supplies power to the receiving end and simultaneously ensures the completion of self operation. The control authority of the power supply battery is set at the power receiving end, and the power receiving end generates a power consumption demand control signal according to the actual working condition demand of the power receiving end so as to automatically control and obtain the electric quantity; the control authority of the self-powered battery is at the power supply end, power is provided for the operation of the power supply end, the power supply efficiency and the power supply accuracy are effectively improved due to the complementary interference of the power supply end and the power supply end.
After the power demand control signal is obtained, the battery power supply mode is generated by monitoring the electric quantity conditions of the power supply battery and the self-power utilization battery and the operation state of whether the power supply end supplies power to the power receiving end at the current moment, so that the stability of the charging process is ensured.
In one embodiment, when the operation state is a power supply state, the first remaining battery capacity is greater than a first preset electric quantity value, and the second remaining battery capacity is less than or equal to a second preset electric quantity value, a battery power supply mode for sending an output power increase request to the power receiving terminal is generated, and the output power increase request is used for enabling the power receiving terminal to control the first battery module to supply power to the second battery module.
Specifically, when the mixer truck supplies power to the pump truck, the first battery surplus is greater than a first preset electric quantity value, and the second battery surplus is less than or equal to a second preset electric quantity value, it indicates that the electric quantity of the power supply battery can guarantee to supply power to the pump truck, and the electric quantity of the self-powered battery cannot guarantee to provide electric energy corresponding to the operation of the mixer truck, so that a battery power supply mode for sending a request for increasing the output electric energy to the pump truck is generated.
Because the control authority of the power supply battery is at the power receiving end, if the power supply battery is required to supply power for the self-power utilization battery, the power supply battery of the power supply end is required to be controlled by the power receiving end to supply power for the self-power utilization battery. Therefore, the power supply terminal sends a request for increasing the output power to the power receiving terminal, so that the power receiving terminal controls the power supply battery to supply power to the self-power battery.
In one embodiment, when the operation state is a power supply state and the first remaining battery capacity is less than or equal to a first preset electric quantity value, a first auxiliary power supply request sent by a power receiving end is received; and when the second battery residual quantity is greater than a second preset electric quantity value, generating a battery power supply mode for controlling a second battery module of the power supply end to supply power to the power receiving end.
Specifically, when the mixer truck supplies power to the pump truck, and the first remaining battery amount is smaller than or equal to a first preset electric quantity value, it indicates that the electric quantity of the power supply battery cannot guarantee to provide electric energy corresponding to the power consumption requirement for the pump truck. After the mixer truck receives the first auxiliary power supply request, whether the second battery residual quantity is larger than a second preset electric quantity value or not is judged, and when the second battery residual quantity is larger than the second preset electric quantity value, the fact that the self-powered battery can guarantee to provide electric energy corresponding to the operation of the mixer truck is shown. The control authority of the self-powered battery is set on the mixer truck, and at the moment, the mixer truck controls the self-powered battery to supply power to the pump truck while supplying electric energy for self operation.
When the power supply battery is determined to be insufficient in electric quantity and the self-electricity-using battery is sufficient in electric quantity, the self-electricity-using battery is utilized to provide power for the operation of the power supply end and simultaneously supply power for the power receiving end, and the operation duration of the power receiving end is ensured.
In one embodiment, when the operation state is a power supply state and the first remaining battery capacity is less than or equal to a first preset electric quantity value, the second battery module is used for supplying power to the power receiving end. And when the second battery residual quantity is less than or equal to a second preset electric quantity value, generating a battery power supply mode for controlling the second battery module of the power supply end to stop supplying power to the power receiving end.
Specifically, when the mixer truck supplies power to the pump truck, and the first remaining battery amount is smaller than or equal to a first preset electric quantity value, it indicates that the electric quantity of the power supply battery cannot guarantee to provide electric energy corresponding to the power consumption requirement for the pump truck. After the mixer truck receives the first auxiliary power supply request, whether the surplus of the second battery is larger than a second preset electric quantity value or not is judged, when the surplus of the second battery is judged to be smaller than or equal to the second preset electric quantity value, the fact that the self-powered battery cannot guarantee to provide electric energy corresponding to the mixer truck for self operation is indicated, and then the pump truck cannot be guaranteed to be supplied with power, therefore, the mixer truck generates an instruction for enabling the power supply battery to stop supplying power to the pump truck, and the instruction is sent to the pump truck, so that the pump truck controls the power supply battery to stop supplying power to the pump truck.
According to the invention, when the power supply battery is determined to be insufficient and the power consumption battery is also insufficient, the power supply to the power receiving end is stopped, so that the problem of damage to the battery caused by over discharge is avoided.
In one embodiment, when the operation state is a non-power supply state, the first remaining battery amount is greater than a first preset electric quantity value, and the second remaining battery amount is less than or equal to a second preset electric quantity value, a battery power supply mode for controlling the first battery module to supply power to a load at the power supply end is generated.
Specifically, when the mixer truck does not supply power to the pump truck, the first battery residual quantity is larger than a first preset electric quantity value, and the second battery residual quantity is smaller than or equal to a second preset electric quantity value, it is indicated that the power supply battery and the self-powered battery are authorized to be in the mixer truck, and at the moment, the power supply battery is controlled to provide power for the upper device of the mixer truck.
The generation of the battery-powered mode of the present invention is described in general as follows:
specifically, the battery power supply states corresponding to different operation states are different, so that the operation state at the current time is obtained, for example, the operation state at the current time is the power supply state.
Specifically, based on the current operating state as the power supply state, the corresponding battery power supply mode is determined according to the first remaining battery amount and the second remaining battery amount.
Specifically, if the first battery surplus of the first battery module is greater than a first preset electric quantity value and the second battery surplus of the second battery module is greater than a second preset electric quantity value when the power receiving end is initially powered, the first battery module is used for supplying power to the power receiving end, and the second battery module is used for supplying power to the load of the power supply end.
The method comprises the following steps that a first battery surplus is less and less along with the use of a first battery module of a power supply end by a power receiving end, the first battery surplus of the first battery module is smaller than or equal to a first preset electric quantity value, the second battery surplus is still larger than a second preset electric quantity value at the moment, the power receiving end controls a second battery module to supply power to the power receiving end, the second battery surplus is less and less along with the use of the second battery module of the power supply end by the power receiving end, the second battery surplus is smaller than or equal to the second preset electric quantity value, and at the moment, the power supply of any power battery of the power supply end to the power receiving end is stopped.
If the first battery surplus of the first battery module is greater than the first preset electric quantity value and the second battery surplus of the second battery module is greater than the second preset electric quantity value when the power receiving end is initially powered on, along with the use of the power receiving end for the first battery module of the power supply end and the use of the load of the power supply end for the second battery module, the first battery surplus is greater than the first preset electric quantity value and the second battery surplus is less than or equal to the second preset electric quantity value, the first battery module supplies power to the power receiving end and simultaneously supplies power to the load of the power supply end.
Of course, if the first remaining battery capacity of the first battery module is greater than the first predetermined capacity value and the second remaining battery capacity of the second battery module is less than or equal to the second predetermined capacity value when the power receiving terminal is initially powered, the first battery module supplies power to the load of the power supplying terminal while supplying power to the power receiving terminal.
Specifically, the battery power supply mode can be determined along with the change of the first battery residual quantity and the second battery residual quantity, so that the method belongs to a dynamic control process, the requirement of actual operation is better met, and the working efficiency and the user experience are improved.
And 103, supplying power to the power receiving end based on the power demand control signal.
In one embodiment, after the power demand control signal is obtained, the first battery residual quantity and the first preset electric quantity value of the first battery module of the power supply end are judged; when the first battery residual quantity is judged to be larger than a first preset electric quantity value, enabling the power receiving end to control a first battery module of the power supply end to supply power to the power receiving end; and when the first battery residual quantity is judged to be less than or equal to the first preset electric quantity value, the power supply end is not supplied with power.
Specifically, the pump truck is powered only when the electric quantity of the power supply battery is enough, and the pump truck is not powered when the electric quantity of the power supply battery is not enough, so that the problem that the battery is damaged due to over discharge of the power supply battery is solved.
In one specific embodiment, the second battery module of the power supply terminal is controlled to supply power to the load of the power supply terminal while the first battery module is controlled to supply power to the first battery module through the power receiving terminal.
Specifically, when the power supply battery of the mixer truck is controlled by the pump truck to supply power to the mixer truck, the mixer truck controls the self-powered battery to provide power for the mixer truck to be installed or run, the two batteries are not interfered with each other, and the stability and the safety of the whole charging process and the operation process are ensured.
According to the power supply control method provided by the embodiment of the invention, the control connection relation with the power receiving end is determined, so that when the power supply end is controlled to supply power to the power receiving end, the control connection relation with the power receiving end needs to be determined, and the power consumption requirement control signal of the power receiving end is received based on the control connection relation; furthermore, power is supplied to the power receiving end based on the power demand control signal, and therefore the invention can receive three-phase alternating current of a construction site, and can realize that the power receiving end controls the power supply end to supply power to the power receiving end based on the power demand of the power receiving end, so that the operation can be completed efficiently and quickly, and the problems that the operation time is prolonged and the operation efficiency is reduced because the operation machine cannot continue to operate due to power failure of the construction site are solved.
An embodiment of the present invention further provides a power supply control system, where the power supply control system described below and the power supply control method described above may refer to each other, and details are not repeated, as shown in fig. 2, the system includes: the power receiving terminal 201 is electrically connected with the power supply terminal 202, and the power receiving terminal 201 is electrically connected with the power supply terminal 202.
The power receiving end 201 is used for generating a connection control request, and the connection control request is used for indicating that a control connection relation is established with the power supply end;
the power receiving end 201 is further configured to generate a power demand control signal and send the power demand control signal to the power supply end 202;
the power supply end 202 is used for determining that a control connection relation is established with the power receiving end 201 and receiving a power consumption demand control signal based on the control connection relation; and based on the power demand control signal, power is supplied to the power receiving end 201.
In one embodiment, as shown in fig. 3, the power supply terminal 202 includes: a power exchange port 301, a battery management module 302, a first battery module 303, a second battery module 304, and a charge and discharge control module 305. The power supply end 202 is connected with the power receiving end 201 through the power exchange port 301; the battery management module 302 is electrically connected with the first battery module 303 and the second battery module 304; the charge and discharge control module 305 is electrically connected to the first battery module 303, the second battery module 304, and the battery management module 302.
A battery management module 302 for monitoring a first remaining battery level of the first battery module 303 and a second remaining battery level of the second battery module 304; generating a battery power supply mode based on the first battery residual capacity, the second battery residual capacity and the operation state of the power supply terminal 202; the battery power supply method is transmitted to the charge and discharge control module 305, and the operation states include: a power supply state in which the power supply terminal supplies power to the power receiving terminal 201, or a non-power supply state in which the power supply terminal does not supply power to the power receiving terminal 201
And a charge and discharge control module 305 for controlling the first battery module 303 and the second battery module 304 to discharge based on a battery power supply mode.
The BATTERY management module 302 is a BATTERY management system (BATTERY MANAGEMENT SYSTEM, BMS for short). The first battery module 303 and the second battery module 304 constitute a power battery of the power supply terminal. The discharge control module 305 is acting as an electrical controller.
Wherein, the power exchange port 301 includes: the system comprises a CAN bus, a connection confirmation interface, a connection locking interface, a low-voltage connection interface, a charge and discharge signal transmission interface, a battery control interface, a high-voltage connection positive interface (high-voltage connection +) and a high-voltage connection negative interface (high-voltage connection-). And determining a corresponding interface to operate based on the actual operation conditions of the mixer truck and the pump truck.
In one embodiment, as shown in fig. 4, the power supply terminal 202 further includes: the battery module comprises a first voltage converter 401, a second voltage converter 402 and a driving unit 403, wherein the first voltage converter 401 is electrically connected with the first battery module 303 and the charge and discharge control module 305, the second voltage converter 402 is electrically connected with the second battery module 304 and the charge and discharge control module 305, and the driving unit 403 is electrically connected with the first voltage converter 401.
Wherein the driving unit 403 includes: motor controller, motor, mechanical transmission, upper mounting and chassis, etc.
Specifically, external charging and discharging equipment is connected with the mixer truck through the electric energy exchange port 301, and the equipment is locked after the connection is confirmed, so that accidental interruption of the charging and discharging process is avoided; the battery management system controls the charge-discharge controller to manage the voltage converter according to the charge-discharge signal and controls the charge-discharge of the power battery.
The self-powered battery provides power for the self-driving unit through the second voltage converter 402, the power supply battery supplies power for the pump truck through the first voltage converter 401, the pump truck sends a power consumption demand control signal to the power supply battery through the electric energy exchange port 301 in the power supply process, the pump truck carries out management control on the power supply battery of the mixer truck through the CAN bus, and the power output of the power supply battery is controlled according to actual pumping working conditions.
The BMS acquires the power battery electric quantity information in real time, and if the electric quantity of a certain battery module is not enough, the charge-discharge controller can control the two battery modules to supply power in an auxiliary mode. When the electric quantity of the self-electricity-using battery is insufficient, if the self-electricity-using battery supplies electricity to the pump truck in the power supply process, the BMS sends an electric energy output signal to the pump truck through the CAN bus due to the fact that the management authority of the power supply battery is on the pump truck, the output electric energy of the power supply battery is increased, the auxiliary electric energy of the power supply battery is transmitted to the second voltage converter 402 through the first voltage converter 401 by the charge-discharge controller, and auxiliary electricity is provided for the self-electricity-using battery of the mixer truck. If the power supply process is not carried out, the BMS directly sends an auxiliary power supply signal to the power supply battery and controls the power supply battery to provide power for running and stirring. If the electric energy of the power supply battery is insufficient, the pump truck sends an auxiliary power supply request, the BMS controls the self-powered battery to increase the electric energy output, and the charging and discharging controller converts the auxiliary electric energy of the self-powered battery by the second voltage converter 402 and then provides auxiliary power for pumping.
In one embodiment, the system further comprises: the peripheral power supply is electrically connected with the power supply end 202; and the peripheral power supply is used for supplying power to the power supply end 202.
A charge and discharge control module 305, further configured to control an input mode of the first battery module 303 and the second battery module 305 based on the first remaining battery amount and the second remaining battery amount; a power supply terminal 202 for charging the first battery module 303 and the second battery module 305.
The charging process is also according to the different battery module electric quantity condition by BMS, and control charge-discharge controller carries out the branch management to the electric energy that charges, if two battery module residual capacity are different, then control the input electric energy, charge for low electric quantity module with the priority of most electric energy, and balanced battery charge time avoids overcharging.
The input mode is a mode for carrying out electric energy distribution management according to the electric quantity conditions of the two batteries.
An embodiment of the present invention further provides a power supply control device, where a power supply control device described below, a power supply control method described above, and a power supply control system described above may refer to each other, and repeated parts are not described again, and as shown in fig. 5, the device includes:
a determining module 501, configured to determine that a control connection relationship is established with a power receiving end;
a receiving module 502, configured to receive an electricity demand control signal of a power receiving end based on the control connection relationship;
and a transmission module 503, configured to supply power to the power receiving end based on the power demand control signal.
In an embodiment, the transmission module 503 is specifically configured to determine the first remaining battery capacity and the first preset electric quantity value of the first battery module at the power supply end based on the power demand control signal; and when the first battery residual quantity is judged to be larger than the first preset electric quantity value, the first battery module of the power supply end is controlled by the power receiving end to supply power to the power receiving end.
In an embodiment, the transmission module 503 is further configured to control the second battery module at the power supply terminal to supply power to the load at the power supply terminal.
In a specific embodiment, the receiving module 502 is further configured to monitor a first remaining battery capacity of a first battery module at the power supply end and a second remaining battery capacity of a second battery module at the power supply end; generating a battery power supply mode based on the first residual battery capacity, the second residual battery capacity and the working state of the power supply terminal, wherein the working state comprises the following steps: the power supply state that the power supply end supplies power to the power receiving end, or the non-power supply state that the power supply end does not supply power to the power receiving end.
In an embodiment, the receiving module 502 is further configured to generate a battery power supply manner for sending an output power increase request to the power receiving end when the operation state is a power supply state, the first remaining battery amount is greater than a first preset power value, and the second remaining battery amount is less than or equal to a second preset power value, where the output power increase request is used for enabling the power receiving end to control the first battery module to supply power to the second battery module.
In an embodiment, the receiving module 502 is further configured to receive a first auxiliary power supply request sent by the power receiving end when the operation state is the power supply state and the first remaining battery amount is less than or equal to a first preset power value; and when the second battery surplus is larger than a second preset electric quantity value, generating a battery power supply mode for controlling a second battery module of the power supply end to supply power to the power receiving end.
In an embodiment, the receiving module 502 is further configured to, when the operation state is a power supply state and the first remaining battery amount is less than or equal to a first preset electric quantity value, supply power to the power receiving terminal by using a second battery module; and when the second battery residual quantity is less than or equal to a second preset electric quantity value, generating a battery power supply mode for controlling the second battery module of the power supply end to stop supplying power to the power receiving end.
In an embodiment, the receiving module 502 is further configured to generate a battery power supply manner for controlling the first battery module to supply power to the load at the power supply end when the operation state is an unpowered state, the first remaining battery capacity is greater than a first preset power value, and the second remaining battery capacity is less than or equal to a second preset power value.
When the power supply control system includes the power receiving terminal 201 and the power supply terminal 202, the power receiving terminal 201 implements logic of the power supply control method. Of course, the system may further include: the power receiving end 201, the power supply end 202 and the power supply control device, and the logic of the power supply control method is realized through the power supply control device.
An embodiment of the present invention further provides a working machine, including a working machine body and a controller, where the controller is configured to implement the power supply control method described in any of the above embodiments.
An embodiment of the present invention further provides a computer program product, where the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer, the computer can execute the power supply control method provided by each of the above methods, and the method includes: determining to establish a control connection relation with a power receiving end; receiving a power demand control signal of a power receiving end based on the control connection relation; and controlling the signal based on the power consumption requirement to supply power to the power receiving end.
An embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the power supply control methods provided in the foregoing when executed by a processor, and the method includes: determining to establish a control connection relation with a power receiving end; receiving a power demand control signal of a power receiving end based on the control connection relation; and controlling the signal based on the power consumption requirement to supply power to the power receiving end.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (13)
1. A power supply control method, characterized in that the method comprises:
determining to establish a control connection relation with a power receiving end;
receiving an electricity demand control signal of the power receiving end based on the control connection relation;
and supplying power to the power receiving end based on the power consumption demand control signal.
2. The power supply control method according to claim 1, wherein the supplying power to the power receiving terminal based on the power demand control signal includes:
judging the first battery surplus and the first preset electric quantity value of a first battery module at a power supply end based on the power demand control signal;
and when the first battery residual quantity is judged to be larger than the first preset electric quantity value, the power receiving end controls the first battery module of the power supply end to supply power to the power receiving end.
3. The power supply control method according to claim 2, characterized by further comprising:
and controlling a second battery module of the power supply end to supply power to a load of the power supply end.
4. The power supply control method according to claim 1, further comprising, after receiving the power demand control signal from the power receiving terminal:
monitoring the first residual battery quantity of a first battery module of the power supply end and the second residual battery quantity of a second battery module of the power supply end;
generating a battery power supply mode based on the first remaining battery quantity, the second remaining battery quantity and the operation state of the power supply terminal, wherein the operation state comprises: and the power supply state that the power supply end supplies power to the power receiving end, or the non-power supply state that the power supply end does not supply power to the power receiving end.
5. The power supply control method according to claim 4, wherein the generating a battery power supply pattern based on the first remaining battery level, the second remaining battery level, and the operation state of the power supply terminal includes:
and when the operation state is the power supply state, the first battery surplus is greater than a first preset electric quantity value, and the second battery surplus is less than or equal to a second preset electric quantity value, generating a battery power supply mode for sending an output power increasing request to the power receiving end, wherein the output power increasing request is used for enabling the power receiving end to control the first battery module to supply power to the second battery module.
6. The power supply control method according to claim 4, wherein generating a battery power supply pattern based on the first remaining battery level, the second remaining battery level, and the operation state of the power supply terminal includes:
when the operation state is the power supply state and the first battery residual quantity is smaller than or equal to a first preset electric quantity value, receiving a first auxiliary power supply request sent by the power receiving end;
and when the second battery residual quantity is larger than a second preset electric quantity value, generating a battery power supply mode for controlling a second battery module of the power supply end to supply power to the power receiving end.
7. The power supply control method according to claim 4, wherein generating a battery power supply pattern based on the first remaining battery level, the second remaining battery level, and the operation state of the power supply terminal includes:
when the operation state is the power supply state and the first battery residual quantity is smaller than or equal to the first preset electric quantity value, the second battery module is used for supplying power to the power receiving end;
and when the second battery residual quantity is smaller than or equal to the second preset electric quantity value, generating a battery power supply mode for controlling the second battery module of the power supply end to stop supplying power to the power receiving end.
8. The power supply control method according to claim 4, wherein generating a battery power supply pattern based on the first remaining battery level, the second remaining battery level, and the operation state of the power supply terminal includes:
and when the operation state is the non-power supply state, the first battery residual quantity is greater than a first preset electric quantity value, and the second battery residual quantity is less than or equal to a second preset electric quantity value, generating a battery power supply mode for controlling the first battery module to supply power to a load of the power supply end.
9. A power supply control apparatus, characterized in that the apparatus comprises:
the determining module is used for determining the establishment of a control connection relation with the power receiving end;
the receiving module is used for receiving the power consumption demand control signal of the power receiving end based on the control connection relation;
and the transmission module is used for supplying power to the power receiving end based on the power consumption demand control signal.
10. A power supply control system, comprising: the power supply device comprises a power receiving end and a power supply end, wherein the power receiving end is electrically connected with the power supply end;
the power receiving end is used for generating a connection control request, and the connection control request is used for indicating the establishment of a control connection relation with the power supply end;
the power receiving end is also used for generating a power demand control signal and sending the power demand control signal to the power supply end;
the power supply end is used for determining the control connection relation established with the power receiving end and receiving the power utilization demand control signal based on the control connection relation; and supplying power to the power receiving end based on the power consumption demand control signal.
11. The power supply control system according to claim 10, wherein the power supply terminal includes: the device comprises an electric energy exchange port, a battery management module, a first battery module, a second battery module and a charge-discharge control module;
the power supply end is connected with the power receiving end through the electric energy exchange port;
the battery management module is electrically connected with the first battery module and the second battery module;
the charge and discharge control module is electrically connected with the first battery module, the second battery module and the battery management module;
the battery management module is used for monitoring the first residual battery quantity of the first battery module and the second residual battery quantity of the second battery module; generating a battery power supply mode based on the first battery residual capacity, the second battery residual capacity and the operation state of the power supply terminal; sending the battery power supply mode to the charge and discharge control module, wherein the operation state comprises: a power supply state in which the power supply end supplies power to the power receiving end, or a non-power supply state in which the power supply end does not supply power to the power receiving end;
and the charge and discharge control module is used for controlling the first battery module and the second battery module to discharge based on the battery power supply mode.
12. The power supply control system of claim 11, further comprising: the peripheral power supply is electrically connected with the power supply end;
the peripheral power supply is used for supplying power to the power supply end;
the charge and discharge control module is further configured to control the input modes of the first battery module and the second battery module based on the first remaining battery amount and the second remaining battery amount.
The power supply end is used for charging the first battery module and the second battery module.
13. A work machine, comprising: a work machine body and a power supply control device according to claim 9, the power supply control device being configured to implement the power supply control method according to any one of claims 1 to 8.
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| CN202210910810.5A CN115208024A (en) | 2022-07-29 | 2022-07-29 | Power supply control method, device and system and working machine |
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| CN202210910810.5A CN115208024A (en) | 2022-07-29 | 2022-07-29 | Power supply control method, device and system and working machine |
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