CN110254282A - Electric car charge control method and device - Google Patents
Electric car charge control method and device Download PDFInfo
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- CN110254282A CN110254282A CN201910563793.0A CN201910563793A CN110254282A CN 110254282 A CN110254282 A CN 110254282A CN 201910563793 A CN201910563793 A CN 201910563793A CN 110254282 A CN110254282 A CN 110254282A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides a kind of electric car charge control method and devices, this method comprises: carrying out electrical matching to charging vehicle and electric discharge vehicle, when charging vehicle and electric discharge vehicle and charging port and electric discharge port successful match, charge and discharge mode identification is carried out to vehicle；When charging vehicle is charge mode and electric discharge vehicle is discharge mode, the demand current of charging vehicle is obtained, the electric discharge for obtaining electric discharge vehicle limits parameter；It carries out response computation and voltage adjusting is carried out to charging voltage according to calculated result, the charging voltage after adjusting is delivered to electric discharge port, so as to charge to charging vehicle；When charging vehicle or electric discharge vehicle meet outage condition, the electric connection between charging vehicle and electric discharge vehicle is disconnected.The present invention is by carrying out the charge and discharge control between charging vehicle and the vehicle that discharges, so that can be based on other electric cars progress charging operations in electric car use process, it is therefore prevented that since the charging caused by charging station distance limitation is not convenient.
Description
Technical field
The invention belongs to electric vehicle engineering field more particularly to a kind of electric car charge control methods and device.
Background technique
Electric car (Battery electrical vehicle, BEV) refers to using vehicle power supply as power, is driven with motor
Motor car wheel traveling, meets the vehicle of road traffic, security legislation requirements.Due to effect on environment with respect to orthodox car compared with
Small, its prospects are considered optimistic wildly.With the propulsion of national energy conservation and emission reduction policy, electric vehicle using more and more extensive.
At present in the deployment of charging station, each parking stall requires to be equipped with a set of charging system, increases electric power in charging station
The cost of demand and charging equipment.Simultaneously as charging station can't be popularized as gas station at present, therefore electric car exists
Limited in driving process by distance, if do not drive to charging station with regard to electric power it is insufficient if, it is very inconvenient.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of electric car charge control method, it is intended to solve existing electronic
In automobile use process, the problem that the charging caused by charging station distance limitation is not convenient.
The embodiments of the present invention are implemented as follows, a kind of electric car charge control method, which comprises
Electrical matching is carried out to charging vehicle and electric discharge vehicle respectively, and works as and determines the charging vehicle and the electric discharge
Vehicle respectively with charging port and electric discharge port successful match when, the charging vehicle and the electric discharge vehicle are filled respectively
Discharge mode identification；
It is charge mode and when the electric discharge vehicle is discharge mode when determining the charging vehicle, obtains the charging
The demand current of vehicle, and obtain the electric discharge limitation parameter of the electric discharge vehicle；
Parameter being limited according to the electric discharge, response computation being carried out to the demand current, calculated result is to described according to response
The charging voltage that charging port receives carries out voltage adjusting, and the charging voltage after adjusting is delivered to the discharge end
Mouthful, so as to charge to the charging vehicle；
When determining the charging vehicle or the electric discharge vehicle meets outage condition, disconnect with the charging vehicle and
Electric connection between the electric discharge vehicle.
Further, described the step of charge and discharge mode identification is carried out to the charging vehicle and the electric discharge vehicle respectively
Include:
Voltage detecting is carried out to the charge and discharge test point on the charging vehicle and the electric discharge vehicle respectively, is filled with obtaining
Discharge examination value；
When the charge and discharge detected value is the first predeterminated voltage, then determine that the mode of corresponding vehicle is discharge mode；
When the charge and discharge detected value is the second predeterminated voltage, then determine that the mode of corresponding vehicle is charge mode.
Further, described that the step of parameter carries out response computation to demand current packet is limited according to the electric discharge
It includes:
According to the demand current to calculate target power, and obtain the discharge power stored in the electric discharge limitation parameter
Threshold value；
Judge whether the target power is greater than the discharge power threshold value；
If so, generating current regulation instruction；
If it is not, then generating voltage regulating command.
Further, the calculated result according to response carries out voltage tune to the charging voltage that the charging port receives
The step of section includes:
When generating current regulation instruction, current regulation instruction is sent to the charging vehicle, so that institute
Charging vehicle is stated the demand current is adjusted；
When generating the voltage regulating command, the charging port is exported based on the discharge power threshold value charging
Voltage is adjusted, so that output electric current meets the demand current.
Further, described the step of carrying out electrically matching to charging vehicle and electric discharge vehicle respectively, includes:
Voltage detecting is carried out to the connection confirmation interface on the charging port and the electric discharge port respectively, is filled with obtaining
Electrical interface value and electric discharge interface value；
Judge whether the charging interface value is greater than third predeterminated voltage, it is default whether the electric discharge interface value is greater than the 4th
Voltage；
If so, determine the charging vehicle and the electric discharge vehicle respectively with the charging port and the electric discharge port
Successful match.
It is further, described that when determining, the charging vehicle is charge mode and the electric discharge vehicle is discharge mode
After step, the method also includes:
Locking signal is sent to the charging vehicle and the electric discharge vehicle respectively, so as to the charging vehicle and described put
The wheel locking of electric car.
Further, it is described disconnection the charging vehicle and it is described electric discharge vehicle between electric connection the step of it
Before, the method also includes:
Respectively to it is described electric discharge vehicle and the charging vehicle battery carry out electricity acquisition, with obtain the first charge value and
Second charge value；
When determining first charge value less than the first power threshold, then it is described disconnected to determine that the electric discharge vehicle meets
Electric condition；
When determining second charge value greater than second power threshold, then determine that the charging vehicle meets institute
State outage condition.
Further, the method also includes:
Persistently carried out according to prefixed time interval the demand current and it is described electric discharge limitation parameter acquisition, and continue into
The row response computation；
Voltage adjusting is carried out to the charging voltage according to the response computation intermittent.
The another object of the embodiment of the present invention is to provide a kind of electric vehicle charge control device, and described device includes:
Charge and discharge mode identification module, for carrying out electrical matching to charging vehicle and electric discharge vehicle respectively, and when judgement
To the charging vehicle and the electric discharge vehicle respectively with charging port and electric discharge port successful match when, respectively to the charging
Vehicle and the electric discharge vehicle carry out charge and discharge mode identification；
Charge-discharge parameter obtains module, for when determining, the charging vehicle to be charge mode and the electric discharge vehicle is
When discharge mode, the demand current of the charging vehicle is obtained, and obtains the electric discharge limitation parameter of the electric discharge vehicle；
Response computation module carries out response computation to the demand current for limiting parameter according to the electric discharge, according to
Response computation result carries out voltage adjusting to the charging voltage that the charging port receives, and the charging after adjusting is electric
Pressure is delivered to the electric discharge port, so as to charge to the charging vehicle；
Power-off control module, for breaking when determining the charging vehicle or the electric discharge vehicle meets power-off adjusting
Open the electric connection between the charging vehicle and the electric discharge vehicle.
Further, the charge and discharge mode identification module is also used to:
Voltage detecting is carried out to the charge and discharge test point on the charging vehicle and the electric discharge vehicle respectively, is filled with obtaining
Discharge examination value；
When the charge and discharge detected value is the first predeterminated voltage, then determine that the mode of corresponding vehicle is discharge mode；
When the charge and discharge detected value is the second predeterminated voltage, then determine that the mode of corresponding vehicle is charge mode.
The embodiment of the present invention, by carrying out the charge and discharge control between the charging vehicle and the electric discharge vehicle, so that
In electric car use process, can based on other electric cars carry out charging operations, effectively prevent due to charging station away from
It is not convenient from charging caused by limitation, by carrying out charge and discharge mode identification to the charging vehicle and the electric discharge vehicle
Design has effectively ensured the safety of charge and discharge process between vehicle, and has been limited by the demand current and the electric discharge
The acquisition of parameter has effectively ensured the accuracy that subsequent charge voltage is adjusted, it is therefore prevented that since charging current is excessive to described
The damage of charging vehicle, and the damage for preventing discharge power excessive to the electric discharge vehicle.
Detailed description of the invention
Fig. 1 is the flow chart for the electric car charge control method that first embodiment of the invention provides；
Fig. 2 is the flow chart for the electric car charge control method that second embodiment of the invention provides；
Fig. 3 is the structural schematic diagram for the electric vehicle charge control device that third embodiment of the invention provides；
Fig. 4 is the structural schematic diagram for the electric vehicle charge control device that fourth embodiment of the invention provides；
Fig. 5 is the structural schematic diagram of control module in Fig. 4；
Fig. 6 is the attachment structure schematic diagram in Fig. 4 between charging interface and charging vehicle；
Fig. 7 is the attachment structure schematic diagram discharged between interface and the vehicle that discharges in Fig. 4；
Fig. 8 is the charge control guidance circuit diagram of electric vehicle charge control device in Fig. 4；
Fig. 9 is the charging connection control sequential figure of electric vehicle charge control device in Fig. 4；
Figure 10 is the charged state flow chart of electric vehicle charge control device in Fig. 4.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
Embodiment one
Referring to Fig. 1, being the flow chart for the electric car charge control method that first embodiment of the invention provides, the side
Method comprising steps of
Step S10 carries out electrical matching to charging vehicle and electric discharge vehicle respectively, and when determine the charging vehicle and
The electric discharge vehicle respectively with charging port and electric discharge port successful match when, respectively to the charging vehicle and the electric discharge vehicle
Carry out charge and discharge mode identification；
Wherein, by judge the charging vehicle, the electric discharge vehicle and the charging port and the electric discharge port it
Between electric connection state, with determine whether Corresponding matching success, it is preferred that in the step, can use voltage detecting side
Formula carries out the identification of the charge and discharge mode, and the charge and discharge mode includes discharge mode and charge mode；
Step S20 is charge mode and when the electric discharge vehicle is discharge mode when determining the charging vehicle, obtains
The demand current of the charging vehicle, and obtain the electric discharge limitation parameter of the electric discharge vehicle；
It wherein, is charge mode and when the electric discharge vehicle is discharge mode when determining the charging vehicle.Then determine
The electric discharge of the electric discharge vehicle and the charging operations of the charging vehicle can be currently carried out, the demand current is the charging vehicle
The maximum value of charging current, the electric discharge limitation parameter can be discharge power, discharge voltage, discharge current or discharge time
Deng；
Step S30 limits parameter according to the electric discharge and carries out response computation to the demand current, calculates knot according to response
Fruit carries out voltage adjusting to the charging voltage that the charging port receives, and the charging voltage after adjusting is delivered to institute
Electric discharge port is stated, so as to charge to the charging vehicle；
Wherein, it by the design of the response computation, effectively prevents since charging current is excessive to the charging vehicle
Damage, and prevent simultaneously due to discharge power it is excessive to it is described electric discharge vehicle damage；
Step S40, when determining the charging vehicle or the electric discharge vehicle meets outage condition, disconnection is filled with described
Electric connection between electric car and the electric discharge vehicle；
Wherein, the outage condition is for determining currently whether carry out power operation, prevents from overcharging or over-discharge
Damage to automobile batteries effectively raises the service life of automobile batteries；
In the present embodiment, by carrying out the charge and discharge control between the charging vehicle and the electric discharge vehicle, so that
In electric car use process, charging operations can be carried out based on other electric cars, effectively prevented due to charging station distance
Charging caused by limitation is not convenient, is set by carrying out charge and discharge mode identification to the charging vehicle and the electric discharge vehicle
Meter has effectively ensured the safety of charge and discharge process between vehicle, and has passed through the demand current and electric discharge limitation ginseng
Several acquisitions has effectively ensured the accuracy that subsequent charge voltage is adjusted, it is therefore prevented that fill to described since charging current is excessive
The damage of electric car, and the damage for preventing discharge power excessive to the electric discharge vehicle.
Embodiment two
Referring to Fig. 2, being the flow chart for the electric car charge control method that second embodiment of the invention provides, the side
Method comprising steps of
Step S11 carries out voltage detecting to the connection confirmation interface on the charging port and the electric discharge port respectively,
To obtain charging interface value and electric discharge interface value；
Wherein, it effectively facilitates subsequent charge and discharge by the way that the design of the connection confirmation interface is arranged in the step and is electrically connected
The detection for connecing state improves the safety of charge and discharge, it is preferred that the detection for the connection confirmation interface can also use
The mode of current detecting carries out；
Step S21, judges whether the charging interface value is greater than third predeterminated voltage, and whether the electric discharge interface value is greater than
4th predeterminated voltage；
Wherein, the third predeterminated voltage and the 4th predeterminated voltage can be independently configured according to user demand；
When the judging result of step S21, which is, is, determine that the charging vehicle and the electric discharge vehicle are filled with described respectively
Electric port and electric discharge port successful match, and execute step S31；
Step S31 carries out voltage detecting to the charge and discharge test point on the charging vehicle and the electric discharge vehicle respectively,
To obtain charge and discharge detected value；
Wherein, the detection of the charge and discharge electro-detection can be carried out by the way of voltage detecting or current detecting, pass through institute
The acquisition of charge and discharge detected value is stated, the subsequent charging vehicle is effectively facilitated and the electric discharge charging and discharging vehicle mode is sentenced
It is fixed；
Step S41 then determines the mode of corresponding vehicle for electric discharge when the charge and discharge detected value is the first predeterminated voltage
Mode；When the charge and discharge detected value is the second predeterminated voltage, then determine that the mode of corresponding vehicle is charge mode；
Wherein, first predeterminated voltage and second predeterminated voltage can be independently configured according to user demand,
In the present embodiment, first predeterminated voltage is 6V, and second predeterminated voltage is 4V, and the discharge mode is for determining to correspond to
Vehicle can provide discharge voltage, and the charge mode is for determining that corresponding vehicle needs to carry out charging operations；
Step S51 is charge mode and when the electric discharge vehicle is discharge mode when determining the charging vehicle, respectively
Locking signal is sent to the charging vehicle and the electric discharge vehicle, so that the wheel of the charging vehicle and the electric discharge vehicle
Locking；
Wherein, the locking signal is used to prevent the position of charging vehicle described in charge and discharge process and the electric discharge vehicle
It is mobile, improve the safety of charge and discharge process；
Step S61 obtains the demand current of the charging vehicle, and the electric discharge for obtaining the electric discharge vehicle limits parameter, and
Parameter is limited according to the electric discharge, and response computation is carried out to the demand current；
Wherein, described the step of carrying out response computation to the demand current according to electric discharge limitation parameter, includes:
According to the demand current to calculate target power, and obtain the discharge power stored in the electric discharge limitation parameter
Threshold value；
Judge whether the target power is greater than the discharge power threshold value；
If so, generating current regulation instruction；If it is not, then generating voltage regulating command；
Current regulation instruction is sent to the charging vehicle when generating current regulation instruction by step S71
, so that the demand current is adjusted in the charging vehicle；
Wherein, by adjusting the demand current, to prevent due to the excessive damage to the electric discharge vehicle of charge power；
Step S81, it is defeated to the charging port based on the discharge power threshold value when generating the voltage regulating command
Charging voltage out is adjusted, so that output electric current meets the demand current；
Wherein, the used mode for using decompression is to reduce the charging voltage, and then effectively prevents due to charging electricity
Flow through the damage greatly to the charging vehicle；
The charging voltage after adjusting is delivered to the electric discharge port by step S91 so as to the charging vehicle into
Row charging；
Step S101, when determining the charging vehicle or the electric discharge vehicle meets outage condition, disconnect with it is described
Electric connection between charging vehicle and the electric discharge vehicle；
Preferably, before the step of electric connection disconnected between the charging vehicle and the electric discharge vehicle,
The method also includes:
Respectively to it is described electric discharge vehicle and the charging vehicle battery carry out electricity acquisition, with obtain the first charge value and
Second charge value；
When determining first charge value less than the first power threshold, then it is described disconnected to determine that the electric discharge vehicle meets
Electric condition；
When determining second charge value greater than second power threshold, then determine that the charging vehicle meets institute
State outage condition；
In addition, in the present embodiment, the method also includes:
Persistently carried out according to prefixed time interval the demand current and it is described electric discharge limitation parameter acquisition, and continue into
The row response computation；
Voltage adjusting is carried out to the charging voltage according to the response computation intermittent；
In the present embodiment, by carrying out the charge and discharge control between the charging vehicle and the electric discharge vehicle, so that
In electric car use process, charging operations can be carried out based on other electric cars, effectively prevented due to charging station distance
Charging caused by limitation is not convenient, is set by carrying out charge and discharge mode identification to the charging vehicle and the electric discharge vehicle
Meter has effectively ensured the safety of charge and discharge process between vehicle, and has passed through the demand current and electric discharge limitation ginseng
Several acquisitions has effectively ensured the accuracy that subsequent charge voltage is adjusted, it is therefore prevented that fill to described since charging current is excessive
The damage of electric car, and the damage for preventing discharge power excessive to the electric discharge vehicle.
Embodiment three
Referring to Fig. 3, being the electric vehicle charge control device 100 that third embodiment of the invention provides, described device packet
Include: charge and discharge mode identification module 10, charge-discharge parameter obtain module 11, response computation module 12 and power-off control module 13,
Wherein:
Charge and discharge mode identification module 10 is used to carry out electrical matching to charging vehicle and electric discharge vehicle respectively, and works as and sentence
When breaking to the charging vehicle and the electric discharge vehicle respectively with charging port and electric discharge port successful match, filled respectively to described
Electric car and the electric discharge vehicle carry out charge and discharge mode identification.
In the present embodiment, the charge and discharge mode identification module 10 is also used to: to the charging port and described being put respectively
Connection confirmation interface on electric port carries out voltage detecting, to obtain charging interface value and electric discharge interface value；Judge the charging
Whether interface value is greater than third predeterminated voltage, and whether the electric discharge interface value is greater than the 4th predeterminated voltage；If so, described in determining
Charging vehicle and the electric discharge vehicle respectively with the charging port and electric discharge port successful match.
Further, the charge and discharge mode identification module 10 is also used to: respectively to the charging vehicle and the electric discharge
Charge and discharge test point on vehicle carries out voltage detecting, to obtain charge and discharge detected value；When the charge and discharge detected value is first
When predeterminated voltage, then determine that the mode of corresponding vehicle is discharge mode；When the charge and discharge detected value is the second predeterminated voltage,
The mode for then determining corresponding vehicle is charge mode.
Charge-discharge parameter obtains module 11, for being charge mode and the electric discharge vehicle when determining the charging vehicle
When for discharge mode, the demand current of the charging vehicle is obtained, and obtains the electric discharge limitation parameter of the electric discharge vehicle.
Wherein, the charge-discharge parameter obtains module 11 and is also used to: when determine the charging vehicle be charge mode and
The electric discharge vehicle be discharge mode after, respectively to the charging vehicle and the electric discharge vehicle transmission locking signal so that
The wheel locking of the charging vehicle and the electric discharge vehicle.
Response computation module 12 carries out response computation, root to the demand current for limiting parameter according to the electric discharge
The charging voltage received according to response computation result to the charging port carries out voltage adjusting, and by the charging after adjusting
Voltage is delivered to the electric discharge port, so as to charge to the charging vehicle.
Specifically, the response computation module 12 is also used to: according to the demand current to calculate target power, and obtaining
The discharge power threshold value stored in the electric discharge limitation parameter；Judge whether the target power is greater than the discharge power threshold
Value；If so, generating current regulation instruction；If it is not, then generating voltage regulating command.
Preferably, the response computation module 12 is also used to: when generating current regulation instruction, by the electric current tune
Section instruction is sent to the charging vehicle, so that the demand current is adjusted in the charging vehicle；When the generation electricity
When pressing regulating command, the charging voltage exported based on the discharge power threshold value to the charging port is adjusted, so that defeated
Electric current meets the demand current out.
In the present embodiment, the response computation module 12 is also used to: persistently carrying out the demand according to prefixed time interval
The acquisition of electric current and the electric discharge limitation parameter, and continue to carry out the response computation；According to the response computation intermittent
Voltage adjusting is carried out to the charging voltage.
Power-off control module 13, for when determining the charging vehicle or the electric discharge vehicle and meeting power-off and adjust,
Disconnect the electric connection between the charging vehicle and the electric discharge vehicle.
In addition, the power-off control module 13 is also used in the present embodiment: respectively to the electric discharge vehicle and the charging
The battery of vehicle carries out electricity acquisition, to obtain the first charge value and the second charge value；When determining, first charge value is small
When the first power threshold, then determine that the electric discharge vehicle meets the outage condition；When determining, second charge value is big
When second power threshold, then determine that the charging vehicle meets the outage condition.
In the present embodiment, by carrying out the charge and discharge control between the charging vehicle and the electric discharge vehicle, so that
In electric car use process, charging operations can be carried out based on other electric cars, effectively prevented due to charging station distance
Charging caused by limitation is not convenient, is set by carrying out charge and discharge mode identification to the charging vehicle and the electric discharge vehicle
Meter has effectively ensured the safety of charge and discharge process between vehicle, and has passed through the demand current and electric discharge limitation ginseng
Several acquisitions has effectively ensured the accuracy that subsequent charge voltage is adjusted, it is therefore prevented that fill to described since charging current is excessive
The damage of electric car, and the damage for preventing discharge power excessive to the electric discharge vehicle.
Example IV
Referring to Fig. 4, being the electric vehicle charge control device that fourth embodiment of the invention provides, comprising: electric discharge interface
1, charging interface 2, battery charge controller 3 and connecting cable 4；The battery charge controller 3 includes DCDC module 32 and control mould
Block 31；Preferably, battery charge controller 3 further includes sensor and cooling device.
Referring to Fig. 5, the control module 31 includes accessory power supply 311 and control circuit 312, control circuit 312 is integrated
CAN communication module a and CAN communication module b；The CAN communication module a and charging vehicle battery controller 5, which are established, to be communicated；Institute
It states CAN communication module b and electric discharge Vehicular battery controller 6 is established and communicated；Letter is carried out between control module 31 and DCDC module 32
Number interaction, DCDC module 32 can require to realize DC voltage conversion according to control module 31；The accessory power supply 311 is preferably
12V power supply, accessory power supply 311 are powered by electric discharge interface 1 to electric discharge Vehicular battery controller 6, and accessory power supply 311 passes through charging
Interface 2 is powered to charging vehicle battery controller 5, and charging process DCDC module 32 can charge to accessory power supply 311.
Referring to Fig. 6, charging interface 2 has C1~C9 interface to dock respectively with Vehicular charging socket, wherein C1 is that charging is set
Standby charging connection confirms port, and C2 is Vehicular charging connection confirmation port, and C3 is the charging communication port CAN_H, and C4 is that charging connects
The port CAN_L is connect, C5 is DC power anode, and C6 is DC power cathode, and C7 is charging equipment ground wire port, and C8 is that low pressure is auxiliary
Positive pole is helped, C9 is low pressure accessory power supply cathode；Charging interface 2 and charging socket coupling unit geometric dimension and national standard direct current
Charging gun interface is consistent.
Referring to Fig. 7, electric discharge interface 1 has F1~F9 interface to dock respectively with automotive discharge socket, wherein F1 is that charging is set
Standby charging connection confirms port, and F2 is Vehicular charging connection confirmation port, and F3 is the charging communication port CAN_H, and F4 is that charging connects
The port CAN_L is connect, F5 is DC power anode, and F6 is DC power cathode, and F7 is charging equipment ground wire port, and F8 is that low pressure is auxiliary
Positive pole is helped, F9 is low pressure accessory power supply cathode；Discharge interface 1 and charging socket coupling unit geometric dimension and national standard direct current
Charging gun interface is consistent.
Referring to Fig. 8, battery charge controller 3 includes the interface circuit interacted respectively with charging vehicle and electric discharge vehicle, it can
It realizes and is independently communicated with charging vehicle battery controller, electric discharge Vehicular battery controller simultaneously；
Charging process electric discharge interface 1 can match with electric discharge vehicle DC charging socket and connect and pass through mechanical lock (in figure not
Show) realize locking, mechanical lock lock state illustrates S1 switch connection, and mechanical lock unlocked state illustrates S1 switch and disconnects.
Preferably, guidance circuit R3 ' equivalent resistance is 500 Ω inside electric discharge interface 1, is hindered according to national standard known resistance R2 '
Value is that the resistance value that 1000 Ω, R4 ' resistance value is 1000 Ω, R5 ' is 1000 Ω, and the voltage of U2 ' is 12V, and electric discharge vehicle can root
It is charge mode, the voltage of test point 2 if the voltage of test point 2 is 6V according to the different voltage identification operating mode of test point 2
It is then discharge mode for 4V.
Preferably, the resistance R1 ' equivalent resistance that 3 inside of battery charge controller is connect with electric discharge interface 1 is 500 Ω, electric discharge
Interface 1 is not 8V with the voltage of charging socket connection status test point 3, and electric discharge interface 1 is not connected with charging socket and mechanical lock
The voltage of unlocked state test point 3 is 12V, and electric discharge interface 1 is connect with charging socket but the voltage of unlocked state test point 3
For 8V, the interface 1 that discharges is fully connected with charging socket and the voltage of lock state test point 3 is 6V.
The charging interface 2 can be matched with charging vehicle DC charging socket to be connected and by mechanical lock (not shown)
Realize locking, 2 structural parameters of charging interface are consistent with national standard direct-current charging interface, and charge control principle national standard is clearly fixed
Justice, details are not described herein again；Contactor K1, K2, K3, K4 is closed timing and control logic in battery charge controller and national standard defines one
It causes, details are not described herein again.
Referring to Fig. 9, connection of the battery charge controller 3 by the voltage change confirmation and vehicle interface of recognition detection point 3
State then judges that electric discharge interface 1 has been fully connected with the vehicle socket that discharges when the voltage value of test point 3 is 6V；
Electric discharge vehicle judges charge and discharge mode by the voltage of identification electric discharge vehicle detection point 2；Vehicle detection of such as discharging point 2
Voltage value be 6V, then be judged as charge mode, by interlocking signal make vehicle be in can not driving status, according to DC charging
Communication protocol sends communication message, sends charge requirement parameter；The voltage value of vehicle detection of such as discharging point 2 is 4V, then is judged as
Discharge mode, by interlocking signal make vehicle be in can not driving status, according to DC charging communication protocol send communication message,
Send discharge power threshold parameters；
The self-test of charging control process battery charge controller, insulating monitoring, charge control timing and logic, charge rest process
Consistent with national standard definition, details are not described herein again；
Referring to Fig. 10, electric discharge vehicle electric controller, by CC2 voltage identification operating mode, voltage is that 4V is then identified as
Discharge mode sends discharge power limit value in the charging stage, and battery charge controller 3 controls discharge power in limits；It fills
Electric car electric controller is by CC2 voltage identification operating mode, and voltage is that 6V is then identified as charge mode, in the charging stage
Battery charge requirement is sent, battery charge controller 3 responds charge request in electric discharge Vehicular battery discharge power limits；With
Temperature and SOC variation, the discharge power limit value for the Vehicular battery that discharges adjusts in real time, and charging vehicle battery charge requirement is also real-time
Variation, battery charge controller 3 obtain electric discharge Vehicular battery controller discharge power limit value and charging vehicle by CAN message in real time
Battery controller charge requirement, adjusts 32 output voltage of DCDC module, and control charging current is not more than the need of charging vehicle battery
Electric current is sought, while the battery discharge power for controlling electric discharge vehicle is no more than limits, in protection charging vehicle and electric discharge vehicle
Energy transfer is carried out with maximum power under the premise of battery；The cooling device of battery charge controller 3 makes in charging process simultaneously
DCDC module 32 and the work of control module 31 are in suitable temperature range.
In the present embodiment, by carrying out the charge and discharge control between the charging vehicle and the electric discharge vehicle, so that
In electric car use process, charging operations can be carried out based on other electric cars, effectively prevented due to charging station distance
Charging caused by limitation is not convenient, is set by carrying out charge and discharge mode identification to the charging vehicle and the electric discharge vehicle
Meter has effectively ensured the safety of charge and discharge process between vehicle, and has passed through the demand current and electric discharge limitation ginseng
Several acquisitions has effectively ensured the accuracy that subsequent charge voltage is adjusted, it is therefore prevented that fill to described since charging current is excessive
The damage of electric car, and the damage for preventing discharge power excessive to the electric discharge vehicle.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of electric car charge control method, which is characterized in that the described method includes:
Electrical matching is carried out to charging vehicle and electric discharge vehicle respectively, and works as and determines the charging vehicle and the electric discharge vehicle
When respectively with charging port and electric discharge port successful match, charge and discharge are carried out to the charging vehicle and the electric discharge vehicle respectively
Pattern-recognition；
It is charge mode and when the electric discharge vehicle is discharge mode when determining the charging vehicle, obtains the charging vehicle
Demand current, and obtain it is described electric discharge vehicle electric discharge limitation parameter；
Parameter being limited according to the electric discharge, response computation being carried out to the demand current, calculated result is to the charging according to response
The charging voltage that port receives carries out voltage adjusting, and the charging voltage after adjusting is delivered to the electric discharge port,
So as to charge to the charging vehicle；
When determining the charging vehicle or the electric discharge vehicle meets outage condition, disconnect and the charging vehicle and described
Electric connection between electric discharge vehicle.
2. electric car charge control method as described in claim 1, which is characterized in that described respectively to the charging vehicle
Include: with the step of electric discharge vehicle progress charge and discharge mode identification
Voltage detecting is carried out to the charge and discharge test point on the charging vehicle and the electric discharge vehicle respectively, to obtain charge and discharge
Detected value；
When the charge and discharge detected value is the first predeterminated voltage, then determine that the mode of corresponding vehicle is discharge mode；
When the charge and discharge detected value is the second predeterminated voltage, then determine that the mode of corresponding vehicle is charge mode.
3. electric car charge control method as described in claim 1, which is characterized in that described limited according to the electric discharge is joined
It is several to the demand current carry out response computations the step of include:
According to the demand current to calculate target power, and obtain the discharge power threshold stored in the electric discharge limitation parameter
Value；
Judge whether the target power is greater than the discharge power threshold value；
If so, generating current regulation instruction；
If it is not, then generating voltage regulating command.
4. electric car charge control method as claimed in claim 3, which is characterized in that the calculated result pair according to response
Charging voltage that the charging port receives carries out the step of voltage adjusting and includes:
When generating current regulation instruction, current regulation instruction is sent to the charging vehicle, so that described fill
The demand current is adjusted in electric car；
When generating the voltage regulating command, the charging port is exported based on the discharge power threshold value charging voltage
It is adjusted, so that output electric current meets the demand current.
5. electric car charge control method as described in claim 1, which is characterized in that described respectively to charging vehicle and putting
Electric car carry out electrically matching the step of include:
Voltage detecting is carried out to the connection confirmation interface on the charging port and the electric discharge port respectively, to obtain charging
Mouth value and electric discharge interface value；
Judge whether the charging interface value is greater than third predeterminated voltage, whether the electric discharge interface value is greater than the 4th default electricity
Pressure；
If so, determine the charging vehicle and the electric discharge vehicle respectively with the charging port and the electric discharge port match
Success.
6. electric car charge control method as described in claim 1, which is characterized in that described to determine the charging vehicle
Be charge mode and the step of the electric discharge vehicle is discharge mode after, the method also includes:
Locking signal is sent to the charging vehicle and the electric discharge vehicle respectively, so that the charging vehicle and the electric discharge vehicle
Wheel locking.
7. electric car charge control method as described in claim 1, which is characterized in that the disconnection and the charging vehicle
It is described electric discharge vehicle between electric connection the step of before, the method also includes:
Electricity acquisition is carried out to the battery of the electric discharge vehicle and the charging vehicle respectively, to obtain the first charge value and second
Charge value；
When determining first charge value less than the first power threshold, then determine that the electric discharge vehicle meets the power-off item
Part；
When determining second charge value greater than second power threshold, then it is described disconnected to determine that the charging vehicle meets
Electric condition.
8. electric car charge control method as described in claim 1, which is characterized in that the method also includes:
The acquisition of the demand current and the electric discharge limitation parameter is persistently carried out according to prefixed time interval, and continues to carry out institute
State response computation；
Voltage adjusting is carried out to the charging voltage according to the response computation intermittent.
9. a kind of electric vehicle charge control device, which is characterized in that described device includes:
Charge and discharge mode identification module is used to carry out electrical matching to charging vehicle and electric discharge vehicle respectively, and works as and determine institute
State charging vehicle and the electric discharge vehicle respectively with charging port and electric discharge port successful match when, respectively to the charging vehicle
Charge and discharge mode identification is carried out with the electric discharge vehicle；
Charge-discharge parameter obtains module, for when determining, the charging vehicle to be charge mode and the electric discharge vehicle is electric discharge
When mode, the demand current of the charging vehicle is obtained, and obtains the electric discharge limitation parameter of the electric discharge vehicle；
Response computation module carries out response computation to the demand current for limiting parameter according to the electric discharge, according to response
Calculated result carries out voltage adjusting to the charging voltage that the charging port receives, and the charging voltage after adjusting is defeated
It send to the electric discharge port, so as to charge to the charging vehicle；
Power-off control module, for when determining the charging vehicle or the electric discharge vehicle and meeting power-off and adjust, disconnect with
Electric connection between the charging vehicle and the electric discharge vehicle.
10. electric vehicle charge control device as claimed in claim 9, which is characterized in that the charge and discharge mode identifies mould
Block is also used to:
Voltage detecting is carried out to the charge and discharge test point on the charging vehicle and the electric discharge vehicle respectively, to obtain charge and discharge
Detected value；
When the charge and discharge detected value is the first predeterminated voltage, then determine that the mode of corresponding vehicle is discharge mode；
When the charge and discharge detected value is the second predeterminated voltage, then determine that the mode of corresponding vehicle is charge mode.
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