CN117549794A - Integrated charge and discharge management method for automobile - Google Patents

Abstract

The invention discloses an automobile integrated charge and discharge management method, which comprises a transmission part, and a vehicle plug and a power plug which are respectively arranged at two ends of the transmission part, wherein the transmission part is provided with a charge and discharge control device and an integrated socket; the charging and discharging control device and the vehicle control the integrated charging and discharging equipment to carry out charging and discharging processes; wherein: the charging process, the vehicle plug is connected to the vehicle socket, the power plug is connected to the external power supply, after the charging process is selected and confirmed, the control module carries out charging authentication detection on the vehicle, and the external power supply and the bidirectional vehicle-mounted charger are conducted to carry out the charging process after the charging authentication detection is completed; and the discharging process is that the vehicle plug is connected to the vehicle socket, after the discharging process is selected and confirmed, the control module is used for abutting the vehicle to perform discharging authentication detection, the integrated socket and the bidirectional vehicle-mounted charger of the vehicle are conducted to perform the discharging process after the discharging authentication detection is completed, and the electric equipment is connected to the integrated socket to realize power supply.

Description

Integrated charge and discharge management method for automobile

Technical Field

The invention belongs to the technical field of charging and discharging of new energy automobiles, and particularly relates to an automobile integrated charging and discharging management method.

Background

The new energy automobile is an automobile which adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel automobile-mounted power device) and integrates the advanced technology in the aspects of power control and driving of the automobile, and the formed technical principle is advanced, and the automobile has a new technology and a new structure. The new energy automobile comprises a pure electric automobile, a range-extended electric automobile, a hybrid electric automobile, a fuel cell electric automobile, a hydrogen engine automobile and the like. The existing new energy automobile concept can be generally considered that various energy forms are converted into electric energy, the motor is driven by the self storage battery to drive the automobile, and meanwhile, the high-capacity storage battery can supply power with certain voltage to the outside. The multiple new energy automobiles can be powered outwards, and can be charged independently, so that the automobile can be used as a pure electric automobile, and the difference is the pure electric mileage corresponding to the capacity of the battery.

For most of the existing new energy automobiles, in order to meet the requirements of pure electric vehicles, the charging equipment is separately provided, so that users can use the new energy automobiles as pure electric vehicles by only relying on charging on the premise of inconvenient utilization of other energy forms. The charging and discharging of the new energy automobile with the charging and discharging functions are all shared interfaces, namely the same vehicle socket interface can be charged and can also be used for discharging, but the charging and discharging in the prior art are respectively two sets of equipment, and the equipment is required to be used independently when in use. In particular, the existing manufacturers are usually only provided with charging equipment, and the discharging equipment needs users to purchase the equipment by themselves, so that the space occupation of the equipment is increased due to the fact that two sets of equipment are independently placed in the vehicle, and the use cost of the users is additionally increased. Because the vehicle shares the charge and discharge port, the charge and discharge equipment can be integrated into an integrated structure in principle, thereby improving the utilization rate, reducing the use cost of users and avoiding the inconvenience caused by storage and use of multiple sets of equipment. Although feasible in principle, the charge and discharge management scheme for the integrated charge and discharge device is not common, and no related technical information exists in the prior art.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides an integrated charge and discharge management method for an automobile, which aims at carrying out charge and discharge management on integrated charge and discharge equipment, avoiding safety accidents caused by improper switching of charge and discharge processes, and meeting the convenient and fast use requirements of the integrated charge and discharge equipment.

The technical scheme adopted by the invention is as follows:

in a first aspect, the present invention provides an integrated charge and discharge management method for a vehicle, where the charge and discharge management method is used for charge and discharge control of an integrated charge and discharge device of a vehicle, where the device includes a transmission portion, and a vehicle plug and a power plug separately disposed at two ends of the transmission portion, and the transmission portion includes a charge and discharge control device and an integrated socket; the charging and discharging control device and the vehicle control the integrated charging and discharging equipment to carry out charging and discharging processes; wherein:

the charging process, the vehicle plug is connected to the vehicle socket, the power plug is connected to the external power supply, after the charging process is selected and confirmed, the charging and discharging control device carries out charging authentication detection on the vehicle, and the external power supply and the bidirectional vehicle-mounted charger are conducted to carry out the charging process after the charging authentication detection is completed;

and the discharging process is that the vehicle plug is connected to the vehicle socket, after the discharging process is selected and confirmed, the charging and discharging control device is used for carrying out discharging authentication detection on the vehicle, after the discharging authentication detection is finished, the integrated socket and the bidirectional vehicle-mounted charger are conducted to carry out the discharging process, and the electric equipment is connected to the integrated socket to realize power supply.

With reference to the first aspect, the present invention provides a first implementation manner of the first aspect, in a charging process and a discharging process, an operation terminal is provided on at least one of the charging and discharging control device, the vehicle plug, the power plug, the transmission portion, and the integrated socket for selecting and confirming a process mode.

With reference to the first aspect or the first implementation manner of the first aspect, the present invention provides a second implementation manner of the first aspect, wherein in a charging process, the charging and discharging control device controls and maintains the integrated socket to be in a disconnected state with the vehicle and the external power supply; in the discharging process, the charging and discharging control device controls and keeps the power plug, the vehicle plug and the integrated socket in a disconnection state.

It should be noted that, in the charging process and the discharging process, because of the integral structure setting, aiming at the characteristic of the integral setting of the circuit, there are necessarily the situations that the discharging structure is powered in the charging process and the charging structure is powered in the discharging process, so in order to ensure that the equipment and the circuit involved in the other process cannot influence each other when the charging process and the discharging process are carried out in a single process, the charging and discharging control device controls the circuit which has completed the charging authentication detection and the discharging authentication detection, and the circuit involved in the other process is disconnected.

With reference to the first aspect or the first implementation manner of the first aspect, the present invention provides a third implementation manner of the first aspect, in both a charging process and a discharging process, there are independent lines for completing corresponding charging authentication detection and discharging verification detection, and a module for detecting a connection relationship between a vehicle plug and a vehicle socket is provided on each line, and the modules on the two lines are controlled in a coordinated manner by the same feedback structure provided at the vehicle plug.

It should be noted that, in the existing standard, a first-stage detection mechanism exists between the vehicle plug and the vehicle socket, and because of higher power, in order to ensure that the connection state is stable in the discharging or charging process, the existing vehicle plug and the vehicle socket are detachably connected through a buckle lock structure, and a detection module corresponding to the movement setting of the buckle lock structure can determine whether the connection state is stable or not under the state of electrical connection.

Because present battery charging outfit and discharging outfit are independent structure, all have a vehicle plug, so all are equipped with this detection module alone, adopt this kind of integral type battery charging and discharging outfit in this application in order to satisfy its detection demand, each is provided with the module that corresponds alone and all has the detection that corresponding mechanism satisfies vehicle plug connection stability after selecting charging and discharging process. The feedback structure linkage control means that after the buckle lock actions arranged on the same vehicle plug are clamped, signals are sent to the modules on the two lines at the same time, and no matter which process is selected by a user through an operation end, the connection stability detection can be realized on the same vehicle plug.

With reference to the first aspect or the first implementation manner of the first aspect, the present invention provides a fourth implementation manner of the first aspect, in a discharging process, when the power plug is powered, it is determined that a discharging condition is not satisfied and an electrical connection between the integrated socket and the vehicle is disconnected; when the power plug is released from getting electricity, the vehicle is again subjected to discharge authentication detection and then reenters the discharge process.

The power plug is powered up, which means that the power plug on the integrated device is in a free state during discharge detection or discharge process, and at this time, there is a case of misoperation of a user, that is, the power plug is plugged into the integrated socket or other external power sockets in the present invention, and if all the connected sockets are powered up, the power plug is in a powered up state.

If no corresponding protection mechanism is arranged, the power plug can influence the strong current and weak current circuits of the whole integrated charge and discharge after power is obtained. Therefore, by limiting the corresponding protection mechanism, when the power plug is powered, the connection relation between the integrated socket and the vehicle end is directly cut off, wherein the connection relation is mainly limited to a strong current disconnection state, that is, a main circuit for the vehicle end to supply electric energy to the integrated socket (various disconnection modes include a mode of directly cutting off power supply through signal feedback to the vehicle end or a mode of directly cutting off power through a switch arranged on a transmission line to form protection).

When the power plug is in a power-on state, the protection mechanism is started immediately after the power plug is in a power-on state, and after the power plug is in a power-on state, whether the discharging authentication is restarted through the integrated charging and discharging equipment or not is judged, and the existing vehicle terminal starts a flow of restarting the discharging authentication after the connection is disconnected once. And the step of removing the power supply is to recover the connection after the discharge authentication detection again in the state that the power plug is not electrified.

With reference to the fourth implementation manner of the first aspect, the present invention provides a fifth implementation manner of the first aspect, wherein the charging and discharging control device controls to disconnect the electrical connection between the integrated socket and the vehicle end after the power plug is powered on during the discharging process.

It should be noted that, the power plug itself and the charge-discharge control device have an electrical connection state, when the power plug is powered up, the charge-discharge control device supplies power to the charge-discharge control device, the charge-discharge control device starts a detection program, whether the discharge authentication is completed and the discharge is performed in the discharge process or not is judged to not satisfy the discharge condition, and the charge-discharge control device starts a corresponding protection mechanism to control the disconnection of the electrical connection between the integrated socket and the vehicle end.

With reference to the first aspect or the first implementation manner of the first aspect, the present invention provides a sixth implementation manner of the first aspect, wherein the integrated charging and discharging device has a detection bit corresponding to the power plug as a discharging condition, and the detection bit determines that the discharging condition is not satisfied when the power plug is not connected during the discharging process.

With reference to the first aspect or the first implementation manner of the first aspect, the present invention provides a seventh implementation manner of the first aspect, wherein the charging authentication detection step specifically includes:

s100, outputting a first detection current from a vehicle end to detect whether only an RC resistor exists in a vehicle plug connected with the vehicle end and the resistance is a preset value;

s200, outputting a second detection current to the vehicle end through the charge-discharge control device by an external power supply after confirmation, and detecting whether the accessed second detection current is a preset standard value or not by the vehicle end and the charge-discharge control device;

s300, switching the connection state of the output second detection current into the connection state of the output PWM signal by the charge and discharge control device powered by the external power supply after confirmation, outputting the PWM signal to a vehicle end through a vehicle plug, and confirming whether the charge condition of the vehicle is met or not by the vehicle end self-checking;

s400, confirming that the vehicle end changes the internal connection state, detecting that the voltage on the circuit through which the PWM signal passes changes to a preset standard value by the charge-discharge control device, and completing the charge authentication detection flow after confirmation.

With reference to the sixth implementation manner of the first aspect, the present invention provides an eighth implementation manner of the first aspect, wherein, when the charging process is performed with a 10A charging current, a preset resistance value of the RC resistor in step S100 is 1.5kΩ, and a voltage value of the resistor after the second detection current detected by the vehicle end passes through the corresponding resistor in step S200 is 9V; the preset standard value of the voltage in step S400 is 6V;

when the 16A charging current is used for charging, the preset resistance value of the RC resistor in the step S100 is 680 omega, and the voltage value of the resistor is obtained after the second detection current detected by the vehicle end in the step S200 passes through the corresponding resistor, and the voltage value is 9V; the preset standard value of the voltage in step S400 is 6V.

The above resistors are not limited to the specific numbers, and the numbers are used for reference only and are not limited to other meanings. For example, all the 'only' of the RC resistor and the R5 resistor are mainly to limit all the resistance values of the corresponding detection circuits to be preset standard values, and refer to the actual circuit in the current national standard, if other people replace the scheme by removing the resistor with the corresponding number or other numbered resistors, the principle is substantially the same as that of the scheme, and the scheme is also considered to belong to the protection scope of the invention.

With reference to the first aspect or the first implementation manner of the first aspect, the present invention provides a ninth implementation manner of the first aspect, and the discharge authentication detection step specifically includes the following steps:

outputting a detection electric signal by a vehicle end, operating an S6 switch arranged on the integrated socket, detecting whether the electric signal only passes through the R5 resistor and whether the resistance value of the R5 resistor is a preset resistance value or not by the vehicle end; and after confirmation, judging that the discharge condition is satisfied, and completing the discharge authentication detection flow.

The beneficial effects of the invention are as follows:

(1) According to the invention, the existing charging equipment and discharging equipment are integrated, and the charging and discharging identification and conversion modes are planned, so that identification and confirmation can be rapidly carried out when the integrated equipment is used for connecting a vehicle or an external power supply, and a user can conveniently use one set of equipment to rapidly carry out charging or discharging process;

(2) The invention can ensure the safety in the charging and discharging process through the planned charging and discharging management mode, and can ensure that the integrated socket is not connected into a circuit in the charging process by limiting the connection relation of the integrated socket, the power plug is not connected into the circuit in the discharging process, and meanwhile, the inner loop formed by inserting the power plug into the integrated socket in the discharging process can be avoided.

Drawings

FIG. 1 is a schematic block diagram of a first equivalent circuit of an integrated charge and discharge device for an automobile in an embodiment of the invention;

FIG. 2 is a block diagram of one embodiment of an automotive integrated charge and discharge device in accordance with an embodiment of the present invention;

FIG. 3 is a schematic block diagram of a second equivalent circuit of an integrated charge and discharge device for an automobile in an embodiment of the invention;

FIG. 4 is a schematic block diagram of a third equivalent circuit of an integrated charge and discharge device for an automobile in an embodiment of the invention;

FIG. 5 is a schematic block diagram of a fourth equivalent circuit of an integrated charge and discharge device for an automobile in an embodiment of the invention;

FIG. 6 is a schematic block diagram of a fifth equivalent circuit of an integrated charge and discharge device for an automobile in an embodiment of the invention;

Detailed Description

The invention is further illustrated by the following description of specific embodiments in conjunction with the accompanying drawings.

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, if the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship that a product of the application conventionally puts in use, it is merely for convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.

Furthermore, the terms "horizontal," "vertical," and the like in the description of the present application, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Example 1:

the embodiment discloses an integrated charge and discharge management method for an automobile, which is based on a circuit management and detection flow of integrated charge and discharge equipment.

First, there is a need to explain the structure of the integrated charge and discharge device, which has various structures, and mainly includes a transmission portion, a vehicle plug and a power plug respectively disposed at two ends of the transmission portion, and the transmission portion further includes a charge and discharge control device and an integrated socket.

The transmission part is mainly a cable or a conductor adopting a conventional power transmission line structure of a new energy automobile, and comprises a basic live wire, a zero wire, a ground wire, and part of detection lines CC and CP.

The vehicle plug is a terminal that is tapped from the transmission portion, and is mainly used as a connection end of one circuit of the transmission portion, and is not limited to the end in its structural configuration. The vehicle plug adopts the conventional structure, can be applicable to different new energy automobile and connect for connect the vehicle socket of new energy automobile, connect the two-way vehicle-mounted charger (OBC) of new energy automobile through the vehicle socket. The vehicle plug is internally provided with a lock catch and a connection stability feedback module, and a channel is formed by state change of a mechanical structure or contact of metal pieces so as to realize signal feedback.

The power plug is also not limited to being provided at the end of its structural form as the other conductive end of the transmission portion. The power plug includes various kinds of three-plug of 10A current (the conventional three-plug structure is used as a specific power plug in this embodiment, but the actual power plug may take other structures, the embodiment is not limited thereto), 16A three-plug and 32A special protrusion plug for connecting to an external power source. In order to realize the same connection feedback mechanism as the vehicle plug, an independent probe structure is further arranged on the power plug, and the power plug is identified with an external power supply or a detachable conversion head through the probe structure so as to detect the power supply current of the external power supply by the vehicle.

The integrated socket is used as a main discharging part, is integrated with the transmission part, and can be arranged on the transmission part singly or integrated with the charge-discharge control device to form an integral structure. The integrated socket is mainly of a multi-hole socket structure, is connected with a zero line, a fire wire and a ground wire, is provided with a plurality of independent socket modules, comprises two-plug, 10A three-plug, 16A three-plug, five-plug jacks and the like, and can be provided with USB socket modules according to requirements.

The charge-discharge control device is used for controlling the whole integrated charge-discharge equipment, a circuit board taking an embedded processor as a core is adopted inside the charge-discharge control device, and the charge-discharge control device also comprises a plurality of power supply modules which can be powered by an external power supply or a vehicle. The management method in this embodiment uses software, circuit design and hardware design as main presentation modes, and uses the charge and discharge control device as a main bearing part to manage the integrated charge and discharge equipment.

In the following description with reference to the drawings, the charge/discharge control device is specifically referred to as a specific control logic circuit provided in the control box in the present embodiment, but it is to be understood that the charge/discharge control device referred to herein actually refers to the control box in a physical structure, and is not limited to such an integral arrangement. The charge/discharge control device may be regarded as a generic term for various circuits provided on the transmission apparatus, not limited to a specific configuration, including a charge/discharge authentication detection circuit and an abnormality feedback circuit in the course of charge/discharge, and the following description refers to the configuration shown in the drawings if any. The vehicle is a new energy vehicle adopting unified charge and discharge standard in the prior art, the inside of the vehicle is provided with a bidirectional vehicle-mounted charger and a vehicle control device, the outside of the vehicle is provided with a vehicle socket for charge and discharge connection, a zero line, a fire line and a ground line of the vehicle are described strong electricity, the zero line, the fire line and the ground line are used as main lines for charge and discharge, CC and CP are weak electricity for detection and identification control, the strong electricity is connected with the bidirectional vehicle-mounted charger, and the weak electricity is connected with the vehicle-mounted charger and the vehicle control device. In the following, the vehicle side refers to the entire vehicle, and is not limited to strong current or weak current.

Specifically, the management method in this embodiment mainly includes two processes, a charging process and a discharging process, and specifically includes the following steps:

in the charging process, a vehicle plug in the integrated charging and discharging equipment is inserted into a vehicle socket, then the power plug is connected to an external power supply, and in the embodiment, the three-hole socket is 10A or 16A, and the plugging sequence is not limited. After the two plugs are connected to the corresponding structures, the mode is selected by triggering an operation end, the charging process is selected, then the charging authentication detection step is started by the charging and discharging control device powered by the external power supply and the vehicle, and after the charging authentication detection step, the charging process is carried out by the external power supply and the bidirectional vehicle-mounted charger through the charging and discharging control device.

In the process, the charge-discharge control device controls the on-off of the circuit through a built-in switch or relay, but the charge-discharge control device is not limited to the switch or relay corresponding to the flow is arranged in a certain structure, and the control relationship of the circuit is limited only by the circuit relative control relationship.

And the discharging process is selected by triggering an operation end after the vehicle plug in the integrated charging and discharging equipment is inserted into the vehicle socket. And then the vehicle control device starts a detection step of a discharging process, the vehicle end controls the bidirectional vehicle-mounted charger to externally supply power through the connection of the vehicle socket and the vehicle plug after the discharging authentication detection step is finished, controls the vehicle plug to be communicated with the integrated socket, and the electric equipment realizes power supply through being connected into the integrated socket.

It should be noted that, the operation end refers to a triggering mechanism, which includes a physical or virtual key, the physical key or the triggering structure may be disposed at any position of the integrated charging and discharging device, and in this embodiment, for convenience of use, the triggering mechanism may be disposed at a vehicle plug or on a charging and discharging control device, and since the vehicle plug and the vehicle socket are connected in both processes, when the vehicle plug is directly plugged in during operation, a user may implement mode selection by triggering the physical key. The virtual key or other operation modes are the same in principle, such as operation modes of sound control, touch control or WIFI, etc., are all used for mode selection, but the virtual key can be started after the charge-discharge control device is powered on, and compared with a mechanical triggering mode, the virtual key has certain operation delay, so that a mechanical switch which is usually used for sliding, rotating or multi-stage pressing is used as an implementation mode, and the virtual key can be distinguished in a set structure through a text or icon mode.

For further explanation, referring to the schematic circuit principle in any one of fig. 1, 3 to 6, a specific explanation of the charge authentication detection step is as follows:

firstly, a vehicle control device measures whether the resistance value between a detection point 3 and PE is only a preset resistance value of RC; after confirmation, the charge-discharge control device outputs 12V voltage, R3 in the vehicle control device is detected, at the moment, the voltage of the detection point 4 is 9V, S1 in the control box is switched from the +12V connection state to the PWM connection state, the charge-discharge control device sends out PWM signals after switching, and the charge-discharge control device judges whether the charge connection device is completely connected or not by measuring the voltage value of the detection point 4.

The vehicle control device determines whether the charging connection device is completely connected by measuring the PWM signal of the detection point 2, and transmits a charging request to the vehicle.

The self-checking of the bidirectional vehicle-mounted charger is completed, under the condition of no fault, and when the battery pack is in a chargeable state, the vehicle control device is closed S2 (if the vehicle is provided with a charging request or charging control function, the vehicle is in the charging request or chargeable state at the same time).

Finally, the charge-discharge control device judges whether the vehicle is ready or not by measuring the preset standard value of the detection point 4. When the detection point 4 reaches a preset standard value, the charge and discharge control device enables the alternating current power supply loop to be conducted through closing K3 and K4.

Further, in order to improve the safety, in the charging process, the charging and discharging control device controls and maintains the integrated socket, the vehicle and the external power supply in a disconnection state; in the discharging process, the charging and discharging control device controls and keeps the power plug, the vehicle plug and the integrated socket in a disconnection state. The on-off control of the circuit in the two modes is controlled by a switch or a relay (or other devices capable of realizing circuit feedback control, such as a MOS tube or a triode, etc., and the description is only carried out by the switch or the relay), and the charge-discharge control device is used for connecting the switch or the relay, so that the formed disconnection state is stable, and the problem that the charging efficiency is influenced by the electrification of the integrated socket during charging or unsafe factors are caused by high-power discharging is avoided.

Further, in the discharging process, when the power plug is electrified, the discharging condition is judged to be unsatisfied and the electric connection between the integrated socket and the vehicle is disconnected; when the power plug is released from getting electricity, the vehicle is again subjected to discharge authentication detection and then reenters the discharge process.

Additionally, in order to further avoid some extreme operations, a protection mechanism is set, that is, in the discharging or charging process, the external charging plug is of a conventional three-plug structure, and if the user inserts the external charging plug into the integrated socket by mistake, a short circuit state is formed. The integrated socket is provided with a detection part for detecting the plug insertion connection, the detection part is connected with the charge and discharge control device through signals, or the detection part is of a physical triggering structure, and the detection part is linked with a transmission part to disconnect the electric connection between the integrated socket and the vehicle plug after the external live plug is inserted into the socket in the discharge process.

In another embodiment, in order to realize more usage modes, in the charging process, the integrated socket which is in a conductive relation with the vehicle plug and the power plug is set by the charging and discharging control device, so that the integrated socket can be used for discharging when the vehicle is charged.

The control implementation mode is that the charge and discharge control device detects an external power supply to obtain the maximum output power and the minimum charging power of the vehicle, so that the maximum discharge power of one integrated socket is obtained. The power distributor arranged on the charge-discharge control device is used for realizing the current division of the vehicle plug and the integrated socket, and the circuit detection and the protection are independently carried out. If the direction of the vehicle exceeds the distributed electric power, the power distribution of the integrated socket is reduced to meet the charging requirement of the vehicle, if the power of the electric appliance connected to the integrated socket exceeds the distributed power, the integrated socket is stopped to supply power and keep the power stable to the vehicle end, and then whether the integrated socket needs to be restarted or not is determined, and then the charging power of the vehicle end is adjusted.

Further, in order to explain the principle of the charge and discharge process, referring to fig. 1, 3, 4, 5 and 6, a schematic circuit diagram of the integrated charge and discharge device is shown, but for the reason that a power plug may be erroneously inserted into an integrated socket or an external power socket to enable a charge and discharge control device to be "powered on" in the discharge process, fig. 1 and 3 enable the charge and discharge control device to participate in the discharge management to disconnect the conductive connection of the integrated socket and a transmission part or disconnect a discharge authentication detection circuit, so that the integrated socket and the transmission part have a protection mechanism; fig. 4, 5 and 6 are views of a combination of a receiving structure and a switch, wherein the receiving structure is a receiving slot provided on an integrated socket, the receiving slot has a jack corresponding to a power plug, and when the power plug is inserted into the receiving slot, only the internal switches (i.e., S6, S7 and S8 switches) are communicated to perform discharge detection authentication and a discharge process, so that a protection mechanism is provided, and the following description will be made in detail with reference to the corresponding drawings.

In fig. 1, a mode of jointly controlling feedback triggering by adopting signal connection of a mechanical triggering and charging and discharging control device is shown, namely, the S6 switch is independently triggered to control the on-off of a discharging authentication detection line, meanwhile, the charging and discharging control device forms a control line, and when detecting point 5 of the charging and discharging control device detects that the current state does not meet the discharging condition, the S6 switch is automatically controlled to be disconnected, so that the connection of the discharging authentication detection line is disconnected, and an effective protection mechanism is formed.

In fig. 3, a mode of jointly controlling feedback triggering by adopting signal connection of a mechanical triggering and charging and discharging control device is shown, namely, the S6 switch is independently triggered to control the on-off of conductive connection between the integrated socket and the transmission part, meanwhile, a control circuit is formed by the charging and discharging control device, when the detection point 5 on the charging and discharging control device detects that the current state does not meet the discharging condition, the KX series switch is automatically controlled to be turned off, and the S6 switch is also forced to be turned off, so that the conductive connection between the integrated socket and the transmission part is turned off, and an effective protection mechanism is formed.

Fig. 4 shows a manner of combining a storage structure with a switch, wherein the storage structure is a storage slot provided on an integrated socket, the storage slot has a jack corresponding to a power plug, and when the power plug is inserted into the storage slot, the internal switch (i.e., the S7 and S8 switches in fig. 4) is communicated to perform a discharging process, i.e., the detection position in the foregoing description, and the storage slot structure is provided in this embodiment specifically. It should be noted that, the S7 and S8 switches are built-in switches, and only the corresponding plug is inserted to realize communication, and the storage slot may be provided with a fool-proof structure, so as to ensure that only the plug is inserted. The specific arrangement modes of the S7 and S8 switches are various, including the jack is arranged on the integrated socket shown in the figure, the gap formed by conductors is formed inside, and the conductors are communicated after the power plug is inserted. However, this method causes current to flow through the plug itself, and an additional interlocking structure is required to maintain the disconnection state of the power plug itself from the transmission circuit when the power plug is inserted into the receiving groove. Another arrangement mode is that an independent pushing mechanism is arranged inside the integrated socket, when the power plug is inserted into the storage groove, the pins or the plugs can enter the jacks or the storage groove to push the corresponding structures so that the S7 switch and the S8 switch are closed, and the pushed structures are made of insulating materials.

Fig. 5 is a schematic diagram of a manner of combining a storage structure with a switch, wherein the storage structure is a storage slot provided on an integrated socket, the storage slot is provided with a jack corresponding to a power plug, and when the power plug is inserted into the storage slot, the internal switches (i.e. the S6, S7 and S8 switches in fig. 5) are communicated to perform discharge detection authentication and discharge process. It should be noted that, the switches S6, S7, and S8 are all built-in switches, where the switch S6 controls the connection of the discharge detection authentication line, the switch S7 and S8 controls the connection of the discharge process, and only the corresponding plug is inserted to realize the connection, and a foolproof structure may be disposed on the storage slot, so as to ensure that only the plug is inserted. The specific arrangement of the S6, S7 and S8 switches is various, and the description of the portion of fig. 4 is equivalent to that described above.

Fig. 6 is a combination of a storage structure and a switch, which is different from the implementation of fig. 5, and has lower implementation cost. The storage structure is a storage groove arranged on the integrated socket, the storage groove is provided with a jack corresponding to the power plug, and when the power plug is inserted into the storage groove, the internal switch (namely the S6 switch in FIG. 6) is communicated for discharge detection authentication. It should be noted that, the S6 switch is a built-in switch, and only the corresponding plug is inserted to realize communication, and the storage slot may be provided with a fool-proof structure, so as to ensure that only the plug is inserted. The specific arrangement of the S6 switch is various, and the description of fig. 4 is equivalent to that described above.

Referring to fig. 1, 3, 4, 5 and 6, it should be further noted that the discharge detection circuit in the internal structure of the vehicle plug in the drawings additionally adds a set of circuit structures formed by the S3 'switch and the R4', that is, the two detection paths mentioned in the foregoing description are provided with a mechanism for detecting whether the power plug is stably connected with the vehicle end. This structure generally sets up on charge detection circuit, sets up on the hasp when being connected between vehicle plug and vehicle socket in its actual product, and after the hasp locking, this S3 and S3' two switch of linkage all have corresponding state, and the detection current of vehicle control device input is after discernment resistance is rated resistance when passing this department, confirms that vehicle plug and vehicle socket are connected stably. When the discharging process is switched, a detection mechanism of the corresponding vehicle plug connection stability can be realized by arranging the circuit.

Specifically, with reference to fig. 1, the authentication detection steps of charging and discharging will be specifically described in this embodiment.

The circuit connection structures shown in the figures are merely logical circuit relationships and are not limited to a particular circuit design and structural arrangement. The left side box is used as a part of a vehicle and comprises a bidirectional vehicle-mounted charger module which is mainly connected with an external circuit through a zero line, a fire wire and a ground wire and is used as a main power input/output port. And a k1 and k2 linkage switch is arranged on one side of the bidirectional vehicle-mounted charger, and the linkage switch is controlled by a vehicle control device.

The vehicle further includes a vehicle control device for performing identification detection mainly with the external transmission device, outputting a detection electric signal (mainly a current value) of a maximum of 12V (which is described only as an embodiment setting parameter and is not limited to the parameter), for judging and normalizing the charge and discharge process.

The middle box is the combination of the vehicle socket and the vehicle plug, mainly shows the connection relation of five cables, and the corresponding switch and the resistor arranged in the vehicle plug, wherein the S5 switch is the operation end in the content, and belongs to the state selection switch, namely the charge detection and the discharge detection based on the CC cables.

The right square frame represents the circuit connection relation between the charge and discharge control device and the integrated structure of the integrated socket, and the rightmost power plug is only connected with the live wire, the ground wire and the zero wire. It can be seen that the integral socket is mainly connected with the zero line, the ground line and the fire line, and a KX switch is arranged at the joint of the integral socket and is used for simultaneously controlling the on-off of a circuit, and meanwhile, an independent S6 trigger button is arranged on the integral socket to control the on-off of a discharge authentication detection circuit.

According to the circuit structure, the charging authentication detection steps are specifically as follows: firstly, outputting a first detection current from a vehicle end to detect whether only an RC resistor exists in a vehicle plug connected with the vehicle end and the resistance value is a preset value; after confirmation, outputting a second detection current to the vehicle end by an external power supply through the charge-discharge control device, and detecting whether the accessed second detection current is a preset standard value or not by the vehicle end and the charge-discharge control device; after confirmation, the charge-discharge control device powered by the external power supply switches the connection state of outputting the second detection current to the connection state of outputting the PWM signal, and outputs the PWM signal to the vehicle end through the vehicle plug; the vehicle end changes the internal connection state, the charge-discharge control device detects that the voltage on the circuit through which the PWM signal passes changes to a preset standard value, and the charging authentication detection flow is completed after confirmation.

Further, in connection with fig. 1, during the charging process at 16A current charging: when the vehicle plug is plugged into the vehicle socket, the vehicle plug snap lock button is normally snapped into place (corresponding to S3 in fig. 1 being closed, if the snap lock is not snapped into place, the S3 switch is not closed, but because the vehicle control device is already electrically connected with the vehicle plug, the RC and R4 series connection is detected by the detection point 3 of the vehicle control device in fig. 1, confirming that the vehicle plug is not completely connected with the vehicle socket at this time), the three-pin power plug (16A) is plugged into an external power source (16A 220V to) and the charge/discharge button selects the "charge" mode.

After selection, the CC line is used for inspection, and the resistance of the RC is detected only by the detection point 3 of the vehicle control device, and is the rated resistance, in this embodiment, set to 680 Ω first; after the RC resistance value is identified to be matched, a module of a charge-discharge control device in the control box outputs +12V to a PE line through a CP line to carry out charge authentication detection, at the moment, because S2 in the figure 1 is not closed, two resistors R1 and R3 are connected in series between the CP and the PE, and 9V voltage is detected by a detection point 4 and a detection point 2; then S1 in the control box is switched to a PWM connection state, S2 enters a closed state after the vehicle completes self-checking and meets charging conditions, at the moment, R3 and R2 form a parallel resistor and then are connected with R1 in series, voltage detected by a detection point 2 and a detection point 4 is changed to a preset standard value, the voltage is limited to 6V in the embodiment, at the moment, the charging authentication detection process is completed, a charging and discharging control device controls K3 and K4 to be closed and conducted, and the vehicle is charged according to 16A current.

Wherein, there are functions such as electric leakage protection function, overload prevention function, temperature detection function and lightning protection in the control box.

When charged at 10A current: when the vehicle plug is inserted into the vehicle socket, the vehicle plug snap lock button is normally snapped in place (S3 is closed), the charge-discharge button selects a 'charge' mode, after the power plug of the three pins 16A is plugged into the conversion head (16A to 10A), a switching signal is fed back to the control box (namely the charge-discharge control device) after a detection module of the conversion head (in the embodiment, a form of matching a metal contact and a probe) is triggered, and the control box automatically adjusts the duty ratio of the PWM signal through program setting to control the current at rated current (the current is limited to 10A in the embodiment, but the actual current is not more than 8A); in the case of a metal-free switching head (no trigger signal is fed back to the control box), the current can also be adjusted to the rated current by setting and switching on the control box by manual/bluetooth/WIFI or the like (in this embodiment, the current is limited to 10A, but the actual current does not exceed 8A).

The discharge authentication detection steps are specifically as follows: outputting a detection current by a vehicle end, operating an S6 switch arranged on the integrated socket, wherein the detection current only passes through a set R5 resistor, and detecting whether the resistance value of the R5 resistor is a preset standard value or not by a vehicle control device of the charge-discharge control device; and after confirmation, judging that the discharge condition is satisfied, and completing the discharge authentication detection flow.

Referring to fig. 2, there is shown a physical structure diagram of an integrated charge and discharge apparatus for illustrating a general structure of the structure, but not limited thereto.

The invention is not limited to the alternative embodiments described above, but any person may derive other various forms of products in the light of the present invention. The above detailed description should not be construed as limiting the scope of the invention, which is defined in the claims and the description may be used to interpret the claims.

Claims (10)

1. An integrated charge-discharge management method for a vehicle is used for charge-discharge control of integrated charge-discharge equipment of the vehicle, the equipment is provided with a transmission part, vehicle plugs and power plugs which are respectively arranged at two ends of the transmission part, and the transmission part is provided with a charge-discharge control device and an integrated socket; the method is characterized in that: the charging and discharging control device and the vehicle control the integrated charging and discharging equipment to carry out charging and discharging processes; wherein:

the charging process, the vehicle plug is connected to the vehicle socket, the power plug is connected to the external power supply, after the charging process is selected and confirmed, the charging and discharging control device carries out charging authentication detection on the vehicle, and the external power supply and the bidirectional vehicle-mounted charger are conducted to carry out the charging process after the charging authentication detection is completed;

and the discharging process is that the vehicle plug is connected to the vehicle socket, after the discharging process is selected and confirmed, the charging and discharging control device is used for carrying out discharging authentication detection on the vehicle, after the discharging authentication detection is finished, the integrated socket and the bidirectional vehicle-mounted charger are conducted to carry out the discharging process, and the electric equipment is connected to the integrated socket to realize power supply.

2. The automobile integrated charge and discharge management method according to claim 1, wherein: in the charging process and the discharging process, an operation terminal is provided on at least one of the charging and discharging control device, the vehicle plug, the power plug, the transmission part and the integrated socket for selecting and confirming the process mode.

3. The automobile integrated charge and discharge management method according to claim 1 or 2, characterized in that: in the charging process, the charging and discharging control device keeps the integrated socket, the vehicle and the external power supply in a disconnection state;

in the discharging process, the charging and discharging control device controls and keeps the power plug, the vehicle plug and the integrated socket in a disconnection state.

4. The automobile integrated charge and discharge management method according to claim 1 or 2, characterized in that: in the charging process and the discharging process, the charging authentication detection and the discharging authentication detection which correspond to each other are completed through independent circuits, a module for detecting the connection relation between the vehicle plug and the vehicle socket is arranged on each circuit, and the modules on the two circuits are controlled in a linkage mode through the same feedback structure arranged at the vehicle plug.

5. The automobile integrated charge and discharge management method according to claim 1 or 2, characterized in that: in the discharging process, when the power plug is electrified, judging that the discharging condition is not met and disconnecting the electric connection between the integrated socket and the vehicle; when the power plug is released from getting electricity, the vehicle is again subjected to discharge authentication detection and then reenters the discharge process.

6. The automobile integrated charge and discharge management method according to claim 5, wherein: and in the discharging process, after the power plug is electrified, the charging and discharging control device breaks the electric connection between the integrated socket and the vehicle end.

7. The automobile integrated charge and discharge management method according to claim 1 or 2, characterized in that: the integrated charge/discharge device has a detection bit corresponding to the power plug as a discharge condition, and determines that the discharge condition is not satisfied when the detection bit is not connected to the power plug during the discharge process.

8. The automobile integrated charge and discharge management method according to claim 1 or 2, characterized in that: the charging authentication detection steps specifically include:

s100, outputting a first detection current from a vehicle end to detect whether only an RC resistor exists in a vehicle plug connected with the vehicle end and the resistance is a preset value;

s200, outputting a second detection current to the vehicle end through the charge-discharge control device by an external power supply after confirmation, and detecting whether the accessed second detection current is a preset standard value or not by the vehicle end and the charge-discharge control device;

s300, switching the connection state of the output second detection current into the connection state of the output PWM signal by the charge and discharge control device powered by the external power supply after confirmation, outputting the PWM signal to a vehicle end through a vehicle plug, and confirming whether the charge condition of the vehicle is met or not by the vehicle end self-checking;

s400, confirming that the vehicle end changes the internal connection state, detecting that the voltage on the circuit through which the PWM signal passes changes to a preset standard value by the charge-discharge control device, and completing the charge authentication detection flow after confirmation.

9. The automobile integrated charge and discharge management method according to claim 8, wherein: when the charging process is performed by using the 10A charging current, the preset resistance value of the RC resistor in the step S100 is 1.5kΩ, and the voltage value of the resistor after the second detection current detected by the vehicle end in the step S200 passes through the corresponding resistor is 9V; the preset standard value of the voltage in step S400 is 6V;

when the 16A charging current is used for charging, the preset resistance value of the RC resistor in the step S100 is 680 omega, and the voltage value of the resistor is obtained after the second detection current detected by the vehicle end in the step S200 passes through the corresponding resistor, and the voltage value is 9V; the preset standard value of the voltage in step S400 is 6V.

10. The automobile integrated charge and discharge management method according to claim 1 or 2, characterized in that: the discharge authentication detection steps specifically comprise:

outputting a detection electric signal by a vehicle end, operating an S6 switch arranged on the integrated socket, detecting whether the electric signal only passes through the R5 resistor and whether the resistance value of the R5 resistor is a preset resistance value or not by the vehicle end; and after confirmation, judging that the discharge condition is satisfied, and completing the discharge authentication detection flow.