CN110391471B - Electric box self-distribution circuit control system and method, electric box and delivery vehicle - Google Patents
Electric box self-distribution circuit control system and method, electric box and delivery vehicle Download PDFInfo
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- CN110391471B CN110391471B CN201810346957.XA CN201810346957A CN110391471B CN 110391471 B CN110391471 B CN 110391471B CN 201810346957 A CN201810346957 A CN 201810346957A CN 110391471 B CN110391471 B CN 110391471B
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The embodiment of the invention provides a control system and method for a self-configuration circuit of an electric box, the electric box and a delivery vehicle, relates to the technical field of batteries, and solves the safety problem caused by high voltage of a replaced electric box in the replacement process of the electric box by disconnecting a main loop of a battery module which supplies power outwards. The system comprises: the first control switch and the second control switch are respectively connected to the positive pole and the negative pole of the battery module; the first control switch and the second control switch are both arranged in a main loop of the battery module and are used for controlling the battery module to supply power outwards; and the processor is used for regulating and controlling the on or off states of the first control switch and the second control switch. The method comprises the following steps: when an electronic box replacing instruction is received, the first control switch and the second control switch are disconnected; and sending a mode change command to a control center of the vehicle so as to enable the vehicle to enter a box change mode. The technical scheme provided by the embodiment of the invention is suitable for the preparation working process before the replacement of the electric box.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of batteries, in particular to a control system and a control method for a self-distribution circuit of an electric box, the electric box and a delivery vehicle.
[ background of the invention ]
With the popularization of electric vehicles, the problem of battery charging time of the electric vehicles is becoming a focus of attention. At present, in order to solve the problem of overlong charging time of an electric vehicle, a theoretical method for quickly changing an electric box is provided.
In the quick change process of the electric box, in order to ensure the safety of workers, a positive relay and a negative relay in a whole main loop of the electric box are usually closed. However, after the main loop of the whole vehicle is disconnected, the battery modules in each electric box are not isolated, so that the battery modules in the electric boxes still have the possibility of supplying power outwards
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
in the electric box replacement process, the battery module in each electric box still has the possibility of supplying power outwards, so that the high voltage of the replaced electric box can bring great safety problems, and the safety performance of the electric box is low.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a control system and method for an electrical box self-distribution circuit, an electrical box, and a vehicle, in which a first control switch and a second control switch are disposed on a main circuit of a battery module, so that power supply from the battery module to the outside can be avoided, a safety problem caused by high voltage of the electrical box during replacement of the electrical box can be avoided, and safety performance of the electrical box can be improved.
In a first aspect, an embodiment of the present invention provides an electrical box self-configuring circuit control system, including:
the first control switch is connected to the positive electrode of the battery module;
the second control switch is connected to the negative electrode of the battery module; the first control switch and the second control switch are both arranged in a main loop of the battery module and are used for controlling the battery module to supply power outwards;
and the processor is used for regulating and controlling the on or off states of the first control switch and the second control switch.
The above-described aspects and any possible implementation further provide an implementation, further including:
the first safety unit is used for detecting the opening or closing state of the first control switch; and/or the presence of a gas in the gas,
and the second safety unit is used for detecting the opening or closing state of the second control switch.
The above-described aspects and any possible implementations further provide an implementation, where the first security unit includes:
the positive electrode and the negative electrode of the first detection power supply are respectively connected to the input end and the output end of the first control switch through a first level detection module and a first resistor;
the first level detection module is also connected with the processor and is used for measuring the level of the first control switch and obtaining a measurement result;
the first resistor is used for ensuring the safety of a circuit where the first resistor is located;
a first electrical isolation module for isolating the first level detection module;
and the processor is also used for judging the opening or closing state of the first control switch according to the measurement result.
The above-described aspect and any possible implementation further provide an implementation, where the second security unit includes:
the anode and the cathode of the second detection power supply are respectively connected to the input end and the output end of the second control switch through a second level detection module and a second resistor;
the second level detection module is also connected with the processor and is used for measuring the level of the second control switch and obtaining a measurement result;
the second resistor is used for ensuring the safety of a circuit where the second resistor is located;
a second electrical isolation module for isolating the second level detection module;
and the processor is also used for judging the on or off state of the second control switch according to the measurement result.
The above aspect and any possible implementation manner further provide an implementation manner, wherein a first terminal of the processor is connected to the control terminal of the first control switch, and a second terminal of the processor is connected to the control terminal of the second control switch.
The above-described aspects and any possible implementation further provide an implementation, further including:
the processor regulates and controls the on or off state of the first control switch through the first power switch; and/or the presence of a gas in the gas,
and the processor regulates and controls the on or off state of the second control switch through the second power switch.
The above aspects, and any possible implementations, further provide an implementation,
the first power switch comprises a grid electrode, a source electrode and a drain electrode, and the control end of the first control switch comprises a contactor coil; the grid electrode is connected to the first end of the processor, the drain electrode is connected to the positive electrode of the first auxiliary power supply, the source electrode is connected to the positive electrode of the contactor coil, and the negative electrode of the contactor coil is connected to the negative electrode of the first auxiliary power supply; and/or the presence of a gas in the gas,
the second power switch comprises a grid electrode, a source electrode and a drain electrode, and the control end of the second control switch comprises a contactor coil; the grid electrode is connected to the second end of the processor, the drain electrode is connected to the positive electrode of the second auxiliary power supply, the source electrode is connected to the positive electrode of the contactor coil, and the negative electrode of the contactor coil is connected to the negative electrode of the second auxiliary power supply.
The above-described aspects and any possible implementation further provide an implementation, further including:
the first indicating device is connected between the first end of the processor and the control end of the first control switch in series and used for indicating the on or off state of the first control switch; and/or the presence of a gas in the gas,
and the second indicating device is connected between the second end of the processor and the control end of the second control switch in series and is used for indicating the on or off state of the second control switch.
In a second aspect, an embodiment of the present invention provides an electrical box, including: the electrical box self-distribution circuit control system according to any one of the above aspects and any possible implementation manner.
In a third aspect, an embodiment of the invention provides a vehicle, comprising: an electrical box as claimed in any one of the above aspects and any possible implementation.
In a fourth aspect, an embodiment of the present invention provides an electrical box self-configuring circuit control method, which is applied to the electrical box self-configuring circuit control system described in any one of the above aspects and any possible implementation manners, and executed on a processor, and includes:
when an electronic box replacing instruction is received, the first control switch and the second control switch are disconnected;
sending a mode change command to a control center of the vehicle to cause the vehicle to enter a change electrical box mode.
The above aspect and any possible implementation further provide an implementation, where the electrical box self-distribution circuit control system further includes a first safety unit and a second safety unit, and before the sending the mode change instruction to the control center of the vehicle, the method further includes:
detecting the on or off state of the first control switch and the on or off state of the second control switch;
wherein the sending of the mode change instruction to the control center of the vehicle is performed when it is detected that both the first control switch and the second control switch are in the off state.
The above aspects, and any possible implementations, further provide an implementation,
the first safety unit comprises a first detection power supply, a first level detection module, a first resistor and a first electrical isolation module, and the detection of the on or off state of the first control switch comprises: obtaining a level measurement result of the first level detection module on the first control switch; when the level measurement result is a low level, determining that the first control switch is in an off state, wherein the first level detection module is connected to a negative electrode of the first detection power supply; when the level measurement result is a high level, determining that the first control switch is in an off state; the first level detection module is connected to the anode of the first detection power supply;
the second safety unit comprises a second detection power supply, a second level detection module, a second resistor and a second electrical isolation module, and the detection of the on or off state of the second control switch comprises: obtaining a level measurement result of the second level detection module on the second control switch; when the level measurement result is a low level, determining that the second control switch is in an off state, wherein the second level detection module is connected to a negative electrode of the second detection power supply; and when the level measurement result is a high level, determining that the second control switch is in an off state, wherein the second level detection module is connected to the anode of the second detection power supply.
The embodiment of the invention provides a control system and a control method for a self-configuration circuit of an electric box, the electric box and a delivery vehicle. According to the technical scheme provided by the embodiment of the invention, before the electric box is replaced, the first control switch and the second control switch are disconnected through the processor, so that a main loop for supplying power to the battery module in the replaced electric box is cut off, the battery module is prevented from supplying power to the outside, the safety problem caused by high voltage of the replaced electric box in the replacement process of the electric box can be avoided, and the safety performance of the electric box is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a control system of an electrical box self-distributing circuit according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another electrical box self-configuring circuit control system provided by an embodiment of the present invention;
FIG. 3 is a schematic diagram of another electrical box self-configuring circuit control system provided by an embodiment of the present invention;
fig. 4 is a block diagram of an electrical box according to an embodiment of the present invention;
FIG. 5 is a block diagram of a vehicle according to an embodiment of the present invention;
fig. 6 is a flowchart of a control method for a self-configuring circuit of an electrical box according to an embodiment of the present invention;
fig. 7 is a flowchart of another control method for a self-configuring circuit of an electrical box according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. 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 terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that although the terms first, second, etc. may be used to describe the control switch, the safety unit, etc. in the embodiments of the present invention, these switches, units should not be limited to these terms. These terms are only used to distinguish one switch or cell from another. For example, the first control switch may also be referred to as the second control switch, and similarly, the second control switch may also be referred to as the first control switch, without departing from the scope of embodiments of the present invention.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
An embodiment of the present invention provides an electrical box self-configuration circuit control system, which is applicable to a preparatory work process before electrical box replacement, and as shown in fig. 1, the electrical box self-configuration circuit control system includes:
the first control switch 11 is connected to the positive electrode of the battery module.
The battery module is composed of a plurality of battery cells and is arranged in the electrical box.
And a second control switch 12 connected to the negative electrode of the battery module.
The first control switch 11 and the second control switch 12 are both disposed in the main loop of the battery module, and are used for controlling the battery module to supply power to the outside.
Specifically, the first control switch 11 and the second control switch 12 may be relays.
And the processor 13 is used for regulating and controlling the on or off states of the first control switch 11 and the second control switch 12.
Regarding the connection relationship between the processor 13 and the first control switch 11 and the second control switch 12, in a specific implementation process, the first end 131 of the processor 13 may be connected to the control end of the first control switch 11, and the second end 132 of the processor 13 may be connected to the control end of the second control switch 12.
In one possible implementation, the processor 13 may be a single-box management unit (CSC), i.e., the functions of the processor 13 are all integrated in the CSC.
Specifically, the control system for the self-configuring circuit of the electrical box provided by the embodiment of the invention can control the on/off of the first control switch 11 and the second control switch 12 through the processor 13 to control the on/off of the main circuit of the external power supply of the battery module, so as to control the external power supply of the battery module.
Optionally, the electrical box self-distribution circuit control system further includes:
a first safety unit for detecting an on or off state of the first control switch 11.
Specifically, the first safety unit is arranged to ensure that the first control switch 11 is in an off state when the electrical box is replaced, so as to further improve the safety guarantee during the electrical box replacement process.
In one possible implementation, as shown in fig. 1, the first security unit includes:
a first detection power supply 21, the positive (+) negative (-) pole of the first detection power supply 21 is connected to the input/output terminal of the first control switch 11 through a first level detection module 22 and a first resistor 23, respectively.
The connection relationship between the first detection power supply 21 and the first level detection module 22, the first resistor 23, and the first control switch 11 may have six different modes: in the first mode, the anode of the first detection power supply 21 is connected to the first level detection module 22, the first level detection module 22 is connected to the first resistor 23, the first resistor 23 is connected to the input end of the first control switch 11, and the output end of the first control switch 11 is connected to the cathode of the first detection power supply 21; in a second way, see the first way, only the order of the first level detection module 22 and the first resistor 23 is changed, that is, the anode of the first detection power supply 21 is connected to the first resistor 23, and the first resistor 23 is connected to the first level detection module 22; in a third mode, as seen in the first mode, only the positive electrode and the negative electrode of the first detection power supply 21 are exchanged, that is, the negative electrode of the first detection power supply 21 is connected to the first level detection module 22, the first level detection module 22 is connected to the first resistor 23, the first resistor 23 is connected to the output end of the first control switch 11, and the input end of the first control switch 11 is connected to the positive electrode of the first detection power supply 21; in a fourth mode, see the second mode, and in the same way, only the positive electrode and the negative electrode of the first detection power supply 21 are exchanged; in a fifth mode, the anode of the first detection power supply 21 is connected to the first level detection module 22, the first level detection module 22 is connected to the input end of the first control switch 11, the output end of the first control switch 11 is connected to the first resistor 23, and the first resistor 23 is connected to the cathode of the first detection power supply 21; in a sixth mode, see the fifth mode, only the positions of the first level detection module 22 and the first resistor 23 are changed, that is, the first level detection module 22 is connected to the negative electrode of the first detection power supply 21, and the first resistor 23 is connected to the positive electrode of the first detection power supply 21. In fig. 1, this is illustrated only in a fifth mode.
Where the first detection power supply 21 is typically a low voltage supply of 12 volts or 24 volts, the first detection power supply 21 may be a power supply from the CSC.
The first level detection module 22 is further connected to the processor 13 (connection line not shown in fig. 1).
Specifically, the first level detecting module 22 is configured to measure the level of the first control switch 11 and obtain a measurement result. The processor 13 is configured to determine an on or off state of the first control switch 11 according to the measurement result.
Specifically, the first level detecting module 22 may be connected to the positive electrode of the first detecting power supply 21, or may be connected to the negative electrode of the first detecting power supply 21. Therefore, when the first level detecting module 22 is connected to the first detecting power supply 21 in a different manner, the processor 13 determines the on or off state of the first control switch 11 according to the measurement result, which will be described in step 602 below.
The first resistor 23 is specifically used for protecting the safety of the circuit in which the resistor is located and preventing the short circuit of the circuit.
A first electrical isolation module 24 for isolating the first level detection module 22.
In order to prevent the voltage at the first control switch 11 from affecting (e.g., electric field breakdown or other radiation) the voltage at the first level detection module 22, the first level detection module 22 needs to be isolated, and the first level detection module 22 is usually optically coupled and isolated by the first electrical isolation module 24.
It should be noted that when the levels of the first detection power supply 21 and the first level detection module 22 do not match, level conversion may also be performed by the level conversion module.
Optionally, the electrical box self-distribution circuit control system further includes:
a second safety unit for detecting the on or off state of the second control switch 12.
Specifically, the second safety unit is arranged to ensure that the second control switch 12 is in an off state when the electrical box is replaced, so as to further improve the safety guarantee during the electrical box replacement process.
In one possible implementation, as shown in fig. 1, the second security unit includes:
a second detection power supply 31, the positive (+) negative (-) pole of the second detection power supply 31 is connected to the input/output terminal of the second control switch 12 through a second level detection module 32 and a second resistor 33, respectively.
Similarly to the connection relationship between the first detection power supply 21 and the first level detection module 22, the first resistor 23, and the first control switch 11, the connection relationship between the second detection power supply 31 and the second level detection module 32, the connection relationship between the second resistor 33, and the connection relationship between the second detection power supply 31 and the second control switch 12 are also six, and the description thereof is omitted.
Where the second detection power supply 31 is typically a low voltage supply of 12 volts or 24 volts, the second detection power supply 31 may be a power supply from the CSC.
The second level detection module 32 is further connected to the processor 13 (connection line not shown in fig. 1).
Specifically, the second level detecting module 32 is configured to measure the level of the second control switch 12 and obtain a measurement result. The processor 13 is configured to determine an on or off state of the second control switch 12 according to the measurement result.
Specifically, the second level detection module 32 may be connected to the positive electrode of the second detection power supply 31, or may be connected to the negative electrode of the second detection power supply 31. Therefore, when the second level detecting module 32 is connected to the second detecting power supply 31 in a different manner, the processor 13 determines the on or off state of the second control switch 12 according to the measurement result, which is described in step 602 below.
The second resistor 33 specifically functions to protect the safety of the circuit in which it is located and prevent short circuit of the circuit.
A second electrical isolation module 34 for isolating the second level detection module 32.
In order to prevent the voltage at the second control switch 12 from affecting the voltage at the second level detection module 32, the second level detection module 32 needs to be isolated, and the second level detection module 32 is usually optically coupled and isolated by the second electrical isolation module 34.
And similarly, when the levels of the second detection power supply 31 and the second level detection module 32 do not match, level conversion can also be performed by the level conversion module.
Optionally, as shown in fig. 1, the processor 13 is further connected to the battery module to collect the voltage or temperature of the battery module.
Optionally, in order to implement the control of the processor 13 on the first control switch 11 specifically, as shown in fig. 2, the electrical box self-distributing circuit control system further includes:
a first power switch 14, wherein the processor 13 controls the on or off state of the first control switch 11 through the first power switch 14.
Specifically, the first power switch 14 may be a power switch component, such as a mos transistor (i.e., a metal-oxide-semiconductor field effect transistor); the first power switch 14 comprises a gate, a source and a drain, and the control terminal of the first control switch 11 comprises a contactor coil; one possible connection of the first power switch 14 with the processor 13 and the first control switch 11 is as follows: the first power switch 14 has a gate connected to the first terminal 131 of the processor 13, a drain connected to the positive terminal of the first auxiliary power source, a source connected to the positive terminal of the contactor coil, and a negative terminal connected to the negative terminal of the first auxiliary power source.
The first auxiliary power supply can be a low-voltage side power supply in a whole vehicle mode, and can also be an auxiliary power supply of a charging gun or charging equipment in a single-box mode.
The principle for the processor 13 to control the open or closed state of the first control switch 11 via the first power switch 14 is as follows: a first power switch 14 is internally integrated with a booster circuit, the grid of the first power switch is connected with the first end 131 of the processor 13, and when the level of the first end 131 is high, the first power switch 14 is closed; when the first terminal 131 is low, the first power switch 14 is turned off. When the first power switch 14 is closed, the first auxiliary power supply makes the contactor coil of the first control switch 11 generate electromagnetic force, and the electromagnetic force drives the movable contact and the fixed contact of the contactor to be in contact, so that the first control switch 11 is closed; conversely, the first control switch 11 is open.
Optionally, as shown in fig. 2, the electrical box self-distribution circuit control system further includes:
a first indicating device 15 connected in series between a first terminal 131 of the processor 13 and a control terminal of the first control switch 11; wherein, the first indicating device 15 is used for indicating the opening or closing state of the first control switch 11.
First indicating device 15 can be the pilot lamp, and the opening or the off-state of control switch can be instructed in the bright going out of pilot lamp, can artifical discernment control switch's opening or off-state like this, only carries out the electronic box change when the pilot lamp extinguishes, further strengthens the protection.
As shown in fig. 2, if the first indicating device 15 is connected in series between the first end 131 of the processor 13 and the control end of the first control switch 11, the source of the first power switch 14 is connected to the first indicating device 15, the first indicating device 15 is connected to the positive pole of the contactor coil of the first control switch 11, and the negative pole of the contactor coil is connected to the negative pole of the first auxiliary power supply.
Optionally, as shown in fig. 3, the electrical box self-distribution circuit control system further includes:
a second power switch 16, wherein the processor controls the on or off state of the second control switch 12 through the second power switch 16.
Specifically, the second power switch 16 may be a power switch component, such as a mos transistor; the second power switch 16 comprises a gate, a source and a drain, and the control terminal of the second control switch 12 comprises a contactor coil; one possible connection of the second power switch 16 with the processor 13 and the second control switch 12 is as follows: the second power switch 16 has a gate connected to the second terminal 132 of the processor 13, a drain connected to the positive terminal of the second auxiliary power source, a source connected to the positive terminal of the contactor coil, and a negative terminal connected to the negative terminal of the second auxiliary power source.
The second auxiliary power supply can be a low-voltage side power supply in a whole vehicle mode, and can also be an auxiliary power supply of a charging gun or charging equipment in a single-box mode.
The processor 13 controls the open or closed state of the second control switch 12 through the second power switch 16, which is the same as the principle of controlling the first control switch 11 through the first power switch 14, and is not described herein again.
Optionally, as shown in fig. 3, the electrical box self-distribution circuit control system further includes:
a second indicating device 17 connected in series between the second terminal 132 of the processor 13 and the control terminal of the second control switch 12; wherein the second indicating device 17 is used for indicating the on or off state of the second control switch 12.
As shown in fig. 3, if the second indicating device 17 is connected in series between the second end 132 of the processor 13 and the control end of the second control switch 12, the source of the second power switch 16 is connected to the second indicating device 17, the second indicating device 17 is connected to the anode of the contactor coil of the second control switch 12, and the cathode of the contactor coil is connected to the cathode of the second auxiliary power supply.
In particular, the second indicator device 17 may be an indicator light.
In the self-circuit-configuration control system of the electrical box provided by the embodiment of the invention, the first control switch 11 and the second control switch 12 are arranged on the main circuit in the electrical box, and the first control switch 11 and the second control switch 12 are used for controlling the battery module to supply power to the outside. Before carrying out the electronic box and changing, through treater 13 disconnection first control switch 11 and second control switch 12, and then the disconnection is traded the main circuit of the battery module self outside power supply of electronic box, can keep apart the battery module in every electronic box, prevents that battery module self from outside supplying power to can avoid the electronic box to change the safety problem that the in-process is traded electronic box high pressure itself and is brought, improved the security performance of electronic box.
An embodiment of the present invention provides an electrical box 40, as shown in fig. 4, including: the electrical box self-circuit-distribution control system 10 as described in any one of the above possible implementations.
An embodiment of the present invention provides a vehicle 50, as shown in fig. 5, including: an electrical box 40 as described in any one of the above possible implementations.
An embodiment of the present invention provides a control method for a self-configuring circuit of an electrical box, which is applicable to a control system for a self-configuring circuit of an electrical box according to any one of the above possible implementation manners, and is applied to a preparatory work process before replacement of an electrical box, where the method is executed on a processor, as shown in fig. 6, and includes:
601. and when an electric box replacing instruction is received, the first control switch and the second control switch are disconnected.
It should be noted that the electrical box replacement command can be sent by a user; or the control center of the vehicle can send out the command, when the control center detects that the electric box of the vehicle needs to be replaced, the high voltage of the whole vehicle is powered off, namely, a positive relay and a negative relay in a main loop of the whole vehicle are disconnected, and the command of replacing the electric box is sent to the processor. When the processor receives an electric box replacing instruction, the first control switch and the second control switch are disconnected firstly.
603. Sending a mode change command to a control center of the vehicle to cause the vehicle to enter a change electrical box mode.
After disconnecting the first control switch and the second control switch, the main loop of the battery module which supplies power outwards is cut off, and the processor sends a mode replacing instruction to the control center of the carrier at the moment so as to confirm that the carrier can enter a mode of replacing the electric box, namely, the electric box can be replaced on the next step.
In the self-circuit-configuration control method of the electrical box provided by the embodiment of the invention, the first control switch and the second control switch are arranged on the main circuit in the electrical box, and when the processor receives an electrical box replacement instruction, the first control switch and the second control switch are firstly disconnected, and then the carrying tool enters an electrical box replacement mode. According to the technical scheme provided by the embodiment of the invention, the main loop of the battery module in the replaced battery box for supplying power outwards is cut off before the battery box is replaced, namely the battery module in the battery box is isolated, and the battery module is prevented from supplying power outwards, so that the safety problem caused by high voltage of the replaced battery box in the replacement process of the battery box can be avoided, and the safety performance of the battery box is improved.
Further, in combination with the foregoing method flow, in order to improve safety guarantee during the electrical box replacement process, it is necessary to ensure that the battery module in the electrical box and the externally connected main circuit are still in an off state (i.e. the first control switch and the second control switch are in the off state) by the first safety unit and the second safety unit in the control system, respectively, based on which another possible implementation manner of the embodiment of the present invention further provides the following method flow, which is executed before step 603, as shown in fig. 7, the method further includes:
602. detecting an on or off state of the first control switch and an on or off state of the second control switch.
Wherein the sending of the mode change instruction to the control center of the vehicle is performed when it is detected that both the first control switch and the second control switch are in the off state.
In step 602, the processor detects the on or off states of the first control switch and the second control switch through the first safety unit and the second safety unit, respectively, and the following steps are shown as a specific confirmation method.
Further, in combination with the foregoing method flow, another possible implementation manner of the embodiment of the present invention provides the following two possible implementation manners for determining the on or off states of the first control switch and the second control switch, respectively.
In a first implementation manner, when the first control switch is operated, the first safety unit includes a first detection power supply, a first level detection module, a first resistor, and a first electrical isolation module, and detecting an on or off state of the first control switch in step 602 includes:
step 1, obtaining a level measurement result of the first level detection module on the first control switch.
When the first level detection module is connected to different electrodes (positive electrode or negative electrode) of the first detection power supply, the processor determines that the first control switch is in the on or off state according to the measurement result, specifically as follows:
(1) the first level detection module is connected to the negative pole of the first detection power supply:
and step 2A, when the level measurement result is low level, determining that the first control switch is in an off state.
And step 2B, when the level measurement result is a high level, determining that the first control switch is in a closed state.
(2) The first level detection module is connected to the anode of the first detection power supply:
and 2C, when the level measurement result is a high level, determining that the first control switch is in an off state.
And 2D, when the level measurement result is a low level, determining that the first control switch is in a closed state.
In a second implementation manner, when the second control switch is controlled, the second safety unit includes a second detection power supply, a second level detection module, a second resistor, and a second electrical isolation module, and detecting an on or off state of the second control switch in step 602 includes:
and step 1, obtaining a level measurement result of the second level detection module on the second control switch.
When the second level detection module is connected to different electrodes (positive electrode or negative electrode) of the second detection power supply, the processor determines that the second control switch is in the on or off state according to the measurement result, specifically as follows:
(1) the second level detection module is connected to the negative electrode of the second detection power supply:
and step 2A, when the level measurement result is low level, determining that the second control switch is in an off state.
And step 2B, when the level measurement result is a high level, determining that the second control switch is in a closed state.
(2) The second level detection module is connected to the anode of the second detection power supply:
and 2C, when the level measurement result is a high level, determining that the second control switch is in an off state.
And 2D, when the level measurement result is a low level, determining that the second control switch is in a closed state.
Further, in combination with the foregoing method flow, another possible implementation manner of the embodiment of the present invention is to provide the following specific implementation process, taking an electric vehicle as an example, and integrating the functions of the processor in the CSC. When the whole vehicle control center detects that the electric box needs to be replaced, the whole vehicle high voltage is powered off, and an electric box replacement instruction is sent to the CSC to disconnect the first control switch and the second control switch; and then the CSC detects the opening or closing state of the first control switch and the second control switch, if the first control switch and the second control switch are both confirmed to be opened, the CSC informs the whole vehicle control center to enter an electric box replacing mode, and if the first control switch and/or the second control switch are/is detected to be still in the closing state, the CSC responds to the electric box replacing instruction again to open the first control switch and the second control switch until the two control switches are both confirmed to be opened. Entering the electrical box replacement mode is an offline mode for powering off, whether an indicating device (which can be an indicating lamp) in the electrical box is turned off or not needs to be confirmed manually, if the indicating device is turned off, the electrical box can be replaced, and if the indicating device is not turned off, the work flow of replacing the electrical box once is restarted. When the replaced electronic box enters the whole vehicle running mode again, the CSC CAN receive a command of closing the control switch from the whole vehicle control center through a Controller Area Network (CAN), and close the first control switch and the second control switch to form a whole vehicle high-voltage loop.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An electrical box self-configuring circuit control system, comprising:
the first control switch is connected to the positive electrode of the battery module;
the second control switch is connected to the negative electrode of the battery module; the first control switch and the second control switch are both arranged in a main loop of the battery module and are used for controlling the battery module to supply power outwards;
the processor is used for regulating and controlling the on or off states of the first control switch and the second control switch;
the first end of the processor is connected to the control end of the first control switch, and the second end of the processor is connected to the control end of the second control switch;
further comprising:
the processor regulates and controls the on or off state of the first control switch through the first power switch; and/or the presence of a gas in the gas,
the processor regulates and controls the on or off state of the second control switch through the second power switch;
the first power switch comprises a grid electrode, a source electrode and a drain electrode, and the control end of the first control switch comprises a contactor coil; the grid electrode is connected to the first end of the processor, the drain electrode is connected to the positive electrode of the first auxiliary power supply, the source electrode is connected to the positive electrode of the contactor coil, and the negative electrode of the contactor coil is connected to the negative electrode of the first auxiliary power supply; and/or the presence of a gas in the gas,
the second power switch comprises a grid electrode, a source electrode and a drain electrode, and the control end of the second control switch comprises a contactor coil; the grid electrode is connected to the second end of the processor, the drain electrode is connected to the positive electrode of the second auxiliary power supply, the source electrode is connected to the positive electrode of the contactor coil, and the negative electrode of the contactor coil is connected to the negative electrode of the second auxiliary power supply.
2. The system of claim 1, further comprising:
the first safety unit is used for detecting the opening or closing state of the first control switch; and/or the presence of a gas in the gas,
and the second safety unit is used for detecting the opening or closing state of the second control switch.
3. The system of claim 2, wherein the first security unit comprises:
the positive electrode and the negative electrode of the first detection power supply are respectively connected to the input end and the output end of the first control switch through a first level detection module and a first resistor;
the first level detection module is also connected with the processor and is used for measuring the level of the first control switch and obtaining a measurement result;
the first resistor is used for ensuring the safety of a circuit where the first resistor is located;
a first electrical isolation module for isolating the first level detection module;
and the processor is also used for judging the opening or closing state of the first control switch according to the measurement result.
4. The system of claim 2, wherein the second security unit comprises:
the anode and the cathode of the second detection power supply are respectively connected to the input end and the output end of the second control switch through a second level detection module and a second resistor;
the second level detection module is also connected with the processor and is used for measuring the level of the second control switch and obtaining a measurement result;
the second resistor is used for ensuring the safety of a circuit where the second resistor is located;
a second electrical isolation module for isolating the second level detection module;
and the processor is also used for judging the on or off state of the second control switch according to the measurement result.
5. The system of claim 1, further comprising:
the first indicating device is connected between the first end of the processor and the control end of the first control switch in series and used for indicating the on or off state of the first control switch; and/or the presence of a gas in the gas,
and the second indicating device is connected between the second end of the processor and the control end of the second control switch in series and is used for indicating the on or off state of the second control switch.
6. An electrical box, comprising: the electrical box self-circuit-distribution control system of any one of claims 1 to 5.
7. A vehicle, comprising: the electrical box of claim 6.
8. An electrical box self-distribution circuit control method, which is applied to the electrical box self-distribution circuit control system according to any one of claims 1 to 5, and executed on a processor, and comprises the following steps:
when an electronic box replacing instruction is received, the first control switch and the second control switch are disconnected;
sending a mode change command to a control center of the vehicle to cause the vehicle to enter a change electrical box mode.
9. The method of claim 8, wherein the electrical box self-service circuit control system further comprises a first safety unit and a second safety unit, and prior to said sending a mode change command to the vehicle's control center, the method further comprises:
detecting the on or off state of the first control switch and the on or off state of the second control switch;
wherein the sending of the mode change instruction to the control center of the vehicle is performed when it is detected that both the first control switch and the second control switch are in the off state.
10. The method of claim 9,
the first safety unit comprises a first detection power supply, a first level detection module, a first resistor and a first electrical isolation module, and the detection of the on or off state of the first control switch comprises: obtaining a level measurement result of the first level detection module on the first control switch; when the level measurement result is a low level, determining that the first control switch is in an off state, wherein the first level detection module is connected to a negative electrode of the first detection power supply; when the level measurement result is a high level, determining that the first control switch is in an off state; the first level detection module is connected to the anode of the first detection power supply;
the second safety unit comprises a second detection power supply, a second level detection module, a second resistor and a second electrical isolation module, and the detection of the on or off state of the second control switch comprises: obtaining a level measurement result of the second level detection module on the second control switch; when the level measurement result is a low level, determining that the second control switch is in an off state, wherein the second level detection module is connected to a negative electrode of the second detection power supply; and when the level measurement result is a high level, determining that the second control switch is in an off state, wherein the second level detection module is connected to the anode of the second detection power supply.
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