CN106394264B - The method and apparatus that quick charge is carried out to electric car - Google Patents
The method and apparatus that quick charge is carried out to electric car Download PDFInfo
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- CN106394264B CN106394264B CN201610362001.XA CN201610362001A CN106394264B CN 106394264 B CN106394264 B CN 106394264B CN 201610362001 A CN201610362001 A CN 201610362001A CN 106394264 B CN106394264 B CN 106394264B
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- 238000010438 heat treatment Methods 0.000 claims abstract description 123
- 230000005611 electricity Effects 0.000 claims description 20
- 239000011162 core material Substances 0.000 description 124
- 238000010586 diagram Methods 0.000 description 4
- 235000013399 edible fruits Nutrition 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
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Classifications
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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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
-
- 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
- B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
- B60L53/11—DC charging controlled by the charging station, e.g. mode 4
-
- 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
- B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00045—Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
-
- 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
-
- 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
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses the method and apparatus that a kind of pair of electric car carries out quick charge, belong to automobile technical field.Method includes: the Current Temperatures for obtaining battery core；If Current Temperatures are lower than corresponding first preset temperature that charges at a slow speed, control charging equipment is powered heating equipment by the first size of current, and is heated by heating equipment to battery core；If Current Temperatures are higher than the first preset temperature but are lower than corresponding second preset temperature of quick charge, control charging equipment is powered heating equipment by the first size of current, is charged at a slow speed by the second size of current to battery core；If the second preset temperature of Current Temperatures high pressure, control charging equipment carries out quick charge to battery core by third size of current.Device includes: the first acquisition module, and determining module, second obtains module, the first control module, the second control module and third control module.Present invention reduces the charging time, improve charge efficiency.
Description
Technical field
The present invention relates to methods and dress that automobile technical field, in particular to a kind of pair of electric car carry out quick charge
It sets.
Background technique
In recent years, the market share of new-energy automobile is increasing, especially electric car, shows the hair of blowout
Exhibition, following automobile market guiding will develop towards this environmental protection of electric car, free of contamination direction；But electric car
Oceangoing voyage mileage is determined by its battery capacity, in order to solve the problems, such as continuation of the journey, and is not influenced the trip requirements of user, is needed suitable
When for electric car carry out quick charge.
Electric car is limited due to being developed by core material, at low ambient temperatures in order to preferably protect electric car
Battery, be not allow quick charge；Therefore, when carrying out quick charge to electric car at low ambient temperatures at present, first lead to
Too little current charges at a slow speed to the battery pack of electric car, and the temperature of real-time detection battery pack, when the temperature of battery pack
When reaching the corresponding temperature threshold of quick charge, quick charge is carried out to battery pack by high current.
The existing technology has at least the following problems:
It is charged at a slow speed by battery pack of the low current to electric car and the temperature of battery pack is promoted to quick charge
Corresponding temperature threshold, required time is longer, so as to cause the low efficiency for carrying out quick charge to electric car.
Summary of the invention
In order to solve problems in the prior art, the present invention provides a kind of pair of electric car carry out quick charge method and
Device.Technical solution is as follows:
The method that a kind of pair of electric car carries out quick charge, which comprises
When electric car connects charging equipment, the first charge parameter of the charging equipment is obtained；
It is determined according to the second charge parameter of first charge parameter and the electric car to the electric car
The first size of current that the heating equipment of battery pack is powered, to be charged at a slow speed to the battery core of the battery pack
Two size of current and the third size of current that quick charge is carried out to the battery core；
Obtain the Current Temperatures of the battery core；
If the Current Temperatures control the charging equipment and pass through institute lower than corresponding first preset temperature that charges at a slow speed
It states the first size of current to be powered the heating equipment, and the battery core is heated by the heating equipment；
If the Current Temperatures are higher than first preset temperature but corresponding lower than the quick charge second presets
Temperature controls the charging equipment and is powered by first size of current to the heating equipment, passes through described second
Size of current charges at a slow speed to the battery core；
If the second preset temperature described in the Current Temperatures high pressure, controls the charging equipment and pass through the third electric current
Size carries out quick charge to the battery core.
Preferably, the control charging equipment supplies the heating equipment by first size of current
Electricity, comprising:
The first charging is sent to the charging equipment by controller local area network's CAN bus of the electric car to ask
It asks, first charge request carries first size of current, big to request the charging equipment to export first electric current
It is small；
The first charging circuit is generated, and the heating is set by first charging circuit and first size of current
It is standby to be powered；
The control charging equipment is powered the heating equipment by first size of current, passes through institute
The second size of current is stated to charge to the battery core at a slow speed, comprising:
The second charge request is sent to the charging equipment by the CAN bus, second charge request carries institute
The 4th size of current is stated, the 4th size of current is equal to the sum of second size of current and the third size of current, with
The charging equipment is requested to export the 4th size of current；
The first charging circuit is generated, and the heating is set by first charging circuit and first size of current
It is standby to be powered, it is charged at a slow speed by first charging circuit and second size of current to the battery core；
The control charging equipment carries out quick charge to the battery core by the third size of current, comprising:
Third charge request is sent to the charging equipment by the CAN bus, the third charge request carries institute
Third size of current is stated, to request the charging equipment to export the third size of current；
The second charging circuit is generated, and the battery core is carried out fastly by the second charging circuit and the third size of current
Speed charging.
Preferably, first charging circuit include the charging equipment, the heating equipment, the battery core, first after
Electric appliance, the second relay and third relay；
The anode of the charging equipment is connect with one end of the third relay, the other end point of the third relay
It is not connect with the anode of the battery core and one end of the first relay connects, the other end of first relay and the heating
The anode connection of equipment；
The cathode of the heating equipment and the cathode of the battery core are connect with one end of second relay respectively；
The other end of second relay is connect with the cathode of the charging equipment.
Preferably, second charging circuit include: the charging equipment, the battery core, the second relay and third after
Electric appliance；
The charging equipment anode connect with one end of the third relay, the other end of the third relay and
The anode connection of the battery core, the cathode of the battery core are connect with one end of second relay, second relay
The other end is connect with the cathode of the charging equipment.
Preferably, the method also includes:
According to the Current Temperatures, the heating duration/of the heating equipment or the charging duration with the battery core are obtained；
The heating duration and/or the charging duration are shown respectively.
A kind of pair of electric car carries out the device of quick charge, and described device includes:
First obtains module, for when electric car connects charging equipment, obtaining the first charging of the charging equipment
Parameter；
Determining module, for being determined according to the second charge parameter of first charge parameter and the electric car to institute
The first size of current that the heating equipment of the battery pack of electric car is powered is stated, the battery core of the battery pack is carried out
The second size of current to charge at a slow speed and the third size of current to battery core progress quick charge；
Second obtains module, for obtaining the Current Temperatures of the battery core；
First control module, if for the Current Temperatures lower than corresponding first preset temperature that charges at a slow speed, control
The charging equipment is powered the heating equipment by first size of current, and by the heating equipment to institute
Battery core is stated to be heated；
Second control module, if being higher than first preset temperature for the Current Temperatures but quickly being filled lower than described
Corresponding second preset temperature of electricity, controls the charging equipment and is supplied by first size of current the heating equipment
Electricity charges at a slow speed to the battery core by second size of current；
Third control module, if controlling the charging for the second preset temperature described in the Current Temperatures high pressure and setting
It is standby that quick charge is carried out to the battery core by the third size of current.
Preferably, first control module is also used to controller local area network's CAN bus by the electric car
The first charge request is sent to the charging equipment, first charge request carries first size of current, to request
It states charging equipment and exports first size of current；It generates the first charging circuit, and passes through first charging circuit and described
First size of current is powered the heating equipment；
Second control module is also used to send the second charge request to the charging equipment by the CAN bus,
Second charge request carries the 4th size of current, and the 4th size of current is equal to second size of current and institute
The sum of third size of current is stated, to request the charging equipment to export the 4th size of current；The first charging circuit is generated, and
The heating equipment is powered by first charging circuit and first size of current, is charged by described first
Circuit and second size of current charge at a slow speed to the battery core；
The third control module is also used to send third charge request to the charging equipment by the CAN bus,
The third charge request carries the third size of current, to request the charging equipment to export the third size of current；
The second charging circuit is generated, and quick charge is carried out to the battery core by the second charging circuit and the third size of current.
Preferably, first charging circuit include the charging equipment, the heating equipment, the battery core, first after
Electric appliance, the second relay and third relay；
The anode of the charging equipment is connect with one end of the third relay, the other end point of the third relay
It is not connect with the anode of the battery core and one end of the first relay connects, the other end of first relay and the heating
The anode connection of equipment；
The cathode of the heating equipment and the cathode of the battery core are connect with one end of second relay respectively；
The other end of second relay is connect with the cathode of the charging equipment.
Preferably, second charging circuit include: the charging equipment, the battery core, the second relay and third after
Electric appliance；
The charging equipment anode connect with one end of the third relay, the other end of the third relay and
The anode connection of the battery core, the cathode of the battery core are connect with one end of second relay, second relay
The other end is connect with the cathode of the charging equipment.
Preferably, described device further include:
Third obtains module, for according to the Current Temperatures, obtain the heating equipment heating duration/or with it is described
The charging duration of battery core；
Display module, for showing the heating duration and/or the charging duration respectively.
In embodiments of the present invention, corresponding first preset temperature if the Current Temperatures first of battery core charge at a slow speed, control
Charging equipment processed is powered heating equipment by the first size of current, and is heated by heating equipment to battery core；Such as
Fruit battery core is higher than the first preset temperature but is lower than corresponding second preset temperature of quick charge, and control charging equipment passes through first
Size of current is powered heating equipment, is charged at a slow speed by the second size of current to battery core；If battery core is current
The second preset temperature of temperature high pressure, control charging equipment carry out quick charge to battery core by third size of current, so as to shorten
In the charging time, improve charge efficiency.
Detailed description of the invention
Fig. 1 is the method flow diagram that a kind of pair of electric car that the embodiment of the present invention 1 provides carries out quick charge；
Fig. 2-1 is the method flow diagram that a kind of pair of electric car that the embodiment of the present invention 2 provides carries out quick charge；
Fig. 2-2 is a kind of schematic diagram for battery management system that the embodiment of the present invention 2 provides；
Fig. 3 is the apparatus structure schematic diagram that a kind of pair of electric car that the embodiment of the present invention 3 provides carries out quick charge.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment 1
The embodiment of the invention provides the methods that a kind of pair of electric car carries out quick charge, and the executing subject of this method can
The battery management system for thinking electric car, referring to Fig. 1, this method comprises:
Step 101: when electric car connects charging equipment, obtaining the first charge parameter of charging equipment.
Step 102: the battery to electric car is determined according to the second charge parameter of the first charge parameter and electric car
The first size of current that the heating equipment of packet is powered, the second size of current to be charged at a slow speed to the battery core of battery pack with
And the third size of current of quick charge is carried out to battery core.
Step 103: obtaining the Current Temperatures of battery core.
Step 104: if Current Temperatures, lower than charging at a slow speed corresponding first preset temperature, control charging equipment passes through the
One size of current is powered heating equipment, and is heated by heating equipment to battery core.
Step 105: if Current Temperatures are higher than the first preset temperature but are lower than corresponding second preset temperature of quick charge,
Control charging equipment is powered heating equipment by the first size of current, is carried out at a slow speed by the second size of current to battery core
Charging.
Step 106: if the second preset temperature of Current Temperatures high pressure, control charging equipment is by third size of current to electricity
Core carries out quick charge.
In embodiments of the present invention, corresponding first preset temperature if the Current Temperatures first of battery core charge at a slow speed, control
Charging equipment processed is powered heating equipment by the first size of current, and is heated by heating equipment to battery core；Such as
Fruit battery core is higher than the first preset temperature but is lower than corresponding second preset temperature of quick charge, and control charging equipment passes through first
Size of current is powered heating equipment, is charged at a slow speed by the second size of current to battery core；If battery core is current
The second preset temperature of temperature high pressure, control charging equipment carry out quick charge to battery core by third size of current, so as to shorten
In the charging time, improve charge efficiency.
Embodiment 2
The embodiment of the invention provides the methods that a kind of pair of electric car carries out quick charge, and the executing subject of this method can
Think the battery management system of electric car, referring to fig. 2-1, this method comprises:
Step 201: when electric car connects charging equipment, obtaining the first charge parameter of charging equipment.
When electric car needs to charge, electric car is connected charging equipment by driver；Battery management system is examined in real time
The state for surveying electric car obtains the first charge parameter of charging equipment when detecting that electric car connects charging equipment.
First charge parameter includes at least the maximum output current size of charging equipment, and the first charge parameter can also include
The charge protocol of charging equipment, corresponding charging temperature range of the peak power output and/or charging equipment of charging equipment etc..
In embodiments of the present invention, charging equipment is fast fill device, can export the current value of different size of current.
Further, battery management system is also it needs to be determined that the second charge parameter of itself.
Size of current (heating equipment needed for second charge parameter includes at least the heating equipment of the battery pack of electric car
Rated current), size of current (the first rated current of battery core) and battery core fast charge institute needed for the battery core trickle charge of battery pack
The size of current (the second rated current of battery core) needed.Second charge parameter further includes the charge protocol and/or battery of battery pack
Wrap corresponding charging temperature range etc..
Step 202: the battery to electric car is determined according to the second charge parameter of the first charge parameter and electric car
The first size of current that the heating equipment of packet is powered, the second size of current to be charged at a slow speed to the battery core of battery pack with
And the third size of current of quick charge is carried out to battery core.
Quick charge is carried out to electric car since charging equipment can be realized, charging equipment is capable of providing larger
Electric current namely charging equipment maximum output current size be greater than heating equipment needed for size of current, and be greater than to battery core
Size of current needed for trickle charge.
Therefore, in this step, size of current needed for heating equipment in the second charge parameter is determined as the first electric current
Size will be determined as the second size of current to size of current needed for battery core trickle charge in the second charge parameter.
According to the first charge parameter and the second charge parameter, the maximum output for the charging equipment for including from the first charge parameter
Maximum current size is selected in size of current needed for the battery core fast charge that size of current and the second charge parameter include, by selection
Size of current is determined as carrying out battery core the third size of current of quick charge.
Third size of current is greater than the second size of current, and the second size of current is greater than the first size of current.
Further, if the first charge parameter includes the charge protocol of charging equipment, the second charge parameter includes battery
The charge protocol of packet, before this step, it is also necessary to determine charging equipment charge protocol and battery pack charge protocol whether
Matching, detailed process can be with are as follows:
Whether the charge protocol of the charge protocol and battery pack that determine charging equipment is identical；If the charging of charging equipment is assisted
The charge protocol of negotiation battery pack is identical, determines that charging equipment can charge to battery pack, executes step 202；If filled
The charge protocol of electric equipment and the charge protocol of battery pack be not identical, determines that charging equipment cannot charge to battery pack,
Terminate.
Further, if the first charge parameter includes the corresponding charging temperature range of charging equipment, the second charge parameter
Including the corresponding charging temperature range of battery pack, before this step, it is also necessary to determine charging equipment charging temperature range and
Whether the charging temperature range of battery pack matches, and detailed process can be with are as follows:
Determine charging equipment charging temperature range whether include battery pack charging temperature range, if charging equipment
Charging temperature range includes the charging temperature range of battery pack, determines that charging equipment can charge to battery pack, executes step
Rapid 202；If the charging temperature range of charging equipment does not include the charging temperature range of battery pack, determine that charging equipment cannot
It charges, terminates to battery pack.
Step 203: obtaining the Current Temperatures of battery core.
Battery management system includes battery information acquisition unit；In this step, it is acquired by battery information acquisition unit
The Current Temperatures of battery.
Battery information acquisition unit can be any equipment for capableing of temperature collection, such as thermometer.
Electric car is limited due to being developed by core material, at low ambient temperatures in order to preferably protect electric car
Battery, be do not allow carry out quick charge；In embodiments of the present invention, it charges at a slow speed if the Current Temperatures of battery core are lower than
Corresponding first preset temperature, into the heating period；If the Current Temperatures of battery core are higher than the first preset temperature but lower than quick
Charge corresponding second preset temperature when, into heating while charging stage；If it is default that the Current Temperatures of battery core reach second
Temperature, into the high current fast charge stage.
Step 204: if Current Temperatures, lower than charging at a slow speed corresponding first preset temperature, control charging equipment passes through the
One size of current is powered heating equipment, and is heated by heating equipment to battery core.
This step can specifically be realized by following steps (1) to (3), comprising:
(1): CAN (Controller Area Network, controller local area network) bus by electric car is to filling
Electric equipment sends the first charge request, and the first charge request carries the first size of current, to request the first electricity of charging equipment output
Flow the electric current of size.
In embodiments of the present invention, battery management system is communicated by CAN network with charging equipment, namely in this step
Rapid battery management system sends the first charge request, first charge request to charging equipment by the CAN bus of electric car
Carry the first size of current；Charging equipment receives the first charge request that battery management system is sent, and from the first charge request
The first size of current of middle acquisition, and according to the first size of current, export the electric current of the first size of current.
(2): generating the first charging circuit, and heating equipment is supplied by the first charging circuit and the first size of current
Electricity；
Battery management system is as shown in Fig. 2-2, in this step, is closed the first relay in battery management system, the
Two relays and third relay, to generate the first charging circuit, the first charging circuit includes charging equipment, heating equipment, electricity
Core, the first relay, the second relay and third relay.
Charging equipment anode connect with one end of third relay, the other end of third relay respectively with battery core just
Pole connection is connected with one end of the first relay, and the other end of the first relay and the anode of heating equipment connect；Heating equipment
Cathode and the cathode of battery core connect respectively with one end of the second relay；The other end of second relay and bearing for charging equipment
Pole connection.
Further, in the first charging circuit can also include locking device, locking device be connected to the first relay and
Between third relay.
In this step, the size of current of battery management system real-time detection charging equipment output, if charging equipment is defeated
Size of current out is more than predetermined current size, disconnects the locking device in the first charging circuit, thus to heating equipment and/or
Battery core carries out overcurrent protection.
It should be noted that since heating equipment is resistive device, battery core is capacitive apparatus, although in the first charging circuit
In, heating equipment and battery core are parallel relationships, and since charging equipment exports the first size of current, the first size of current, which is not more than, to be added
Size of current needed for hot equipment, therefore, charging equipment is only powered heating equipment, can't charge to battery core.
(3): battery core being heated by heating equipment.
Heating equipment heat release heats battery core with realizing.
When charging equipment is powered heating equipment, heating equipment always heats battery core, battery management system
In real time obtain battery core Current Temperatures, if the Current Temperatures of battery core reach the first preset temperature but be less than quick charge it is corresponding
When the second preset temperature, step 205 is executed.
Step 205: if Current Temperatures are higher than the first preset temperature but are lower than corresponding second preset temperature of quick charge,
Control charging equipment is powered heating equipment by the first size of current, is carried out at a slow speed by the second size of current to battery core
Charging.
This step can specifically be realized by following steps (1) and (2), comprising:
(1): the second charge request being sent to charging equipment by CAN bus, it is big that the second charge request carries the 4th electric current
Small, the 4th size of current is equal to the sum of the second size of current and third size of current, to request charging equipment to export the 4th electric current
Size；
Charging equipment receives the second charge request that battery management system is sent, and the 4th is obtained from the second charge request
Size of current, and according to the 4th size of current, export the electric current of the 4th size of current.
(2): generating the first charging circuit, and heating equipment is supplied by the first charging circuit and the first size of current
Electricity charges at a slow speed to battery core by the first charging circuit and the second size of current.
When charging equipment exports the electric current of the 4th size of current, battery management system controls the electric current warp of the first size of current
Heating equipment is crossed, the electric current of the second size of current passes through battery core.
It should be noted that if the Current Temperatures of battery core are higher than the first default temperature when electric car connects charging equipment
It spends but is lower than corresponding second preset temperature of quick charge, in this step, the first relay of closure, the second relay and third
Relay, to generate the first charging circuit.If electric car connects charging equipment, the Current Temperatures of battery core, which are lower than, to be filled at a slow speed
Corresponding first preset temperature of electricity heats battery core by heating equipment so that the Current Temperatures of battery core are default higher than first
Temperature but when being lower than the second preset temperature, does not need to generate the first charging circuit again in this step, directly fill by first
Circuit and the first size of current are powered heating equipment, by the first charging circuit and the second size of current to battery core into
Row charges at a slow speed.
When charging equipment is powered heating equipment, heating equipment always heats battery core, battery management system
The Current Temperatures for obtaining battery core in real time execute step 206 if the Current Temperatures of battery core reach the second preset temperature.
Step 206: if the second preset temperature of Current Temperatures high pressure, control charging equipment is by third size of current to electricity
Core carries out quick charge.
This step can specifically be realized by following steps (1) and (2), comprising:
(1): third charge request being sent to charging equipment by CAN bus, it is big that third charge request carries third electric current
It is small, to request charging equipment to export third size of current.
Charging equipment receives the third charge request that battery management system is sent, and obtains third from third charge request
Size of current, and according to third size of current, export the electric current of third size of current.
(2): generating the second charging circuit, and battery core is quickly filled by the second charging circuit and third size of current
Electricity.
The first relay is disconnected, to generate the second charging circuit；Second charging circuit includes: charging equipment, battery core, second
Relay and third relay；
The anode of charging equipment is connect with one end of third relay, and the other end of third relay and the anode of battery core connect
It connects, the cathode of battery core is connect with one end of the second relay, and the other end of the second relay and the cathode of charging equipment connect.
In order to improve user experience, during the charging process, battery management system obtains heating equipment to electric car in real time
The charging duration of duration and battery core is heated, namely executes step 207.
Step 207: according to Current Temperatures, obtaining the heating duration/of heating equipment or the charging duration with battery core.
This step can be by following first way or second way realization, for the first implementation, originally
Step can be with are as follows:
The corresponding relationship of storage temperature and heating duration in battery management system, in this step, according to the Current Temperatures,
From the heating duration for obtaining heating equipment in the corresponding relationship of temperature and heating duration, a length of pair of heating equipment is carried out when the heating
The charging duration of power supply.And/or
The corresponding relationship of storage temperature and charging duration in battery management system, in this step, according to the Current Temperatures,
From the charging duration for obtaining battery core in the corresponding relationship of temperature and charging duration.
For second of implementation, this step can be with are as follows:
Battery management system is according to Current Temperatures, the first preset temperature, the second preset temperature, the first size of current, second
Size of current and third size of current calculate the heating duration of heating equipment and/or the charging duration of battery core.
Step 208: showing heating duration and/or charging duration respectively.
User can understand the charging situation of electric car according to the heating duration and/or charging duration.
In embodiments of the present invention, corresponding first preset temperature if the Current Temperatures first of battery core charge at a slow speed, control
Charging equipment processed is powered heating equipment by the first size of current, and is heated by heating equipment to battery core；Such as
Fruit battery core is higher than the first preset temperature but is lower than corresponding second preset temperature of quick charge, and control charging equipment passes through first
Size of current is powered heating equipment, is charged at a slow speed by the second size of current to battery core；If battery core is current
The second preset temperature of temperature high pressure, control charging equipment carry out quick charge to battery core by third size of current, so as to shorten
In the charging time, improve charge efficiency.
Embodiment 3
The embodiment of the invention provides the devices that a kind of pair of electric car carries out quick charge, referring to Fig. 3, the device packet
It includes:
First obtains module 301, for when electric car connects charging equipment, obtaining the first charging ginseng of charging equipment
Number；
Determining module 302, for being determined according to the second charge parameter of the first charge parameter and electric car to electronic vapour
The first size of current that the heating equipment of the battery pack of vehicle is powered, the second electricity to be charged at a slow speed to the battery core of battery pack
It flows size and carries out the third size of current of quick charge to battery core；
Second obtains module 303, for obtaining the Current Temperatures of battery core；
First control module 304, if for Current Temperatures lower than corresponding first preset temperature that charges at a slow speed, control is filled
Electric equipment is powered heating equipment by the first size of current, and is heated by heating equipment to battery core；
Second control module 305, if for Current Temperatures be higher than the first preset temperature but lower than quick charge it is corresponding
Second preset temperature, control charging equipment are powered heating equipment by the first size of current, pass through the second size of current
It is charged at a slow speed to battery core；
Third control module 306, if being used for the second preset temperature of Current Temperatures high pressure, control charging equipment passes through third
Size of current carries out quick charge to battery core.
Preferably, the first control module 304 is also used to through controller local area network's CAN bus of electric car to filling
Electric equipment sends the first charge request, and the first charge request carries the first size of current, to request the first electricity of charging equipment output
Flow size；The first charging circuit is generated, and heating equipment is powered by the first charging circuit and the first size of current；
Second control module 305 is also used to send the second charge request, the second charging to charging equipment by CAN bus
Request carries the 4th size of current, and the 4th size of current is equal to the sum of the second size of current and third size of current, is filled with request
Electric equipment exports the 4th size of current；Generate the first charging circuit, and by the first charging circuit and the first size of current to adding
Hot equipment is powered, and is charged at a slow speed by the first charging circuit and the second size of current to battery core；
Third control module 306 is also used to send third charge request, third charging to charging equipment by CAN bus
Request carries third size of current, to request charging equipment to export third size of current；It generates the second charging circuit, and passes through the
Two charging circuits and third size of current carry out quick charge to battery core.
Preferably, the first charging circuit include charging equipment, heating equipment, battery core, the first relay, the second relay and
Third relay；
Charging equipment anode connect with one end of third relay, the other end of third relay respectively with battery core just
Pole connection is connected with one end of the first relay, and the other end of the first relay and the anode of heating equipment connect；
The cathode of heating equipment and the cathode of battery core are connect with one end of the second relay respectively；
The other end of second relay and the cathode of charging equipment connect.
Preferably, the second charging circuit includes: charging equipment, battery core, the second relay and third relay；
The anode of charging equipment is connect with one end of third relay, and the other end of third relay and the anode of battery core connect
It connects, the cathode of battery core is connect with one end of the second relay, and the other end of the second relay and the cathode of charging equipment connect.
Preferably, device further include:
Third obtains module, when for according to Current Temperatures, obtaining the heating duration/of heating equipment or charging with battery core
It is long；
Display module, for showing heating duration and/or charging duration respectively.
In embodiments of the present invention, corresponding first preset temperature if the Current Temperatures first of battery core charge at a slow speed, control
Charging equipment processed is powered heating equipment by the first size of current, and is heated by heating equipment to battery core；Such as
Fruit battery core is higher than the first preset temperature but is lower than corresponding second preset temperature of quick charge, and control charging equipment passes through first
Size of current is powered heating equipment, is charged at a slow speed by the second size of current to battery core；If battery core is current
The second preset temperature of temperature high pressure, control charging equipment carry out quick charge to battery core by third size of current, so as to shorten
In the charging time, improve charge efficiency.
It should be understood that provided by the above embodiment carry out the device of quick charge to electric car to electric car
Carry out quick charge when, only the example of the division of the above functional modules, in practical application, can according to need and
Above-mentioned function distribution is completed by different functional modules, i.e., the internal structure of device is divided into different functional modules, with
Complete all or part of function described above.In addition, provided by the above embodiment carry out quick charge to electric car
Device belongs to same design with the embodiment of the method for carrying out quick charge to electric car, and specific implementation process is detailed in method reality
Example is applied, which is not described herein again.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. the method that a kind of pair of electric car carries out quick charge, which is characterized in that the described method includes:
When electric car connects charging equipment, the first charge parameter of the charging equipment is obtained；
The battery to the electric car is determined according to the second charge parameter of first charge parameter and the electric car
The first size of current that the heating equipment of packet is powered, the second electric current to be charged at a slow speed to the battery core of the battery pack are big
Third size of current small and that quick charge is carried out to the battery core；
Obtain the Current Temperatures of the battery core；
If the Current Temperatures lower than charging at a slow speed corresponding first preset temperature, control the charging equipment by described the
One size of current is powered the heating equipment, and is heated by the heating equipment to the battery core；
If the Current Temperatures are higher than first preset temperature but are lower than corresponding second preset temperature of the quick charge,
The charging equipment is controlled to be powered the heating equipment by first size of current, it is big by second electric current
It is small to be charged at a slow speed to the battery core；
If the Current Temperatures are higher than second preset temperature, control the charging equipment and pass through the third size of current
Quick charge is carried out to the battery core；
Wherein, it controls the charging equipment to be powered the heating equipment by first size of current, comprising: pass through
Controller local area network's CAN bus of the electric car sends the first charge request to the charging equipment, and described first fills
Electricity request carries first size of current, to request the charging equipment to export first size of current；First is generated to fill
Circuit, and the heating equipment is powered by first charging circuit and first size of current；
It controls the charging equipment to be powered the heating equipment by first size of current, passes through second electricity
Stream size charges at a slow speed to the battery core, comprising: sends the second charging to the charging equipment by the CAN bus and asks
It asks, second charge request carries the 4th size of current, and the 4th size of current is equal to second size of current and institute
The sum of first size of current is stated, to request the charging equipment to export the 4th size of current；Generate the first charging electricity
Road, and the heating equipment is powered by first charging circuit and first size of current, pass through described
One charging circuit and second size of current charge at a slow speed to the battery core；
It controls the charging equipment and quick charge is carried out to the battery core by the third size of current, comprising: by described
CAN bus sends third charge request to the charging equipment, and the third charge request carries the third size of current, with
The charging equipment is requested to export the third size of current；The second charging circuit is generated, and passes through the second charging circuit and institute
It states third size of current and quick charge is carried out to the battery core.
2. the method according to claim 1, wherein first charging circuit includes the charging equipment, institute
State heating equipment, the battery core, the first relay, the second relay and third relay；
The charging equipment anode connect with one end of the third relay, the other end of the third relay respectively with
The anode connection of the battery core is connected with one end of first relay, the other end of first relay and the heating
The anode connection of equipment；
The cathode of the heating equipment and the cathode of the battery core are connect with one end of second relay respectively；
The other end of second relay is connect with the cathode of the charging equipment.
3. the method according to claim 1, wherein second charging circuit includes: the charging equipment, institute
State battery core, the second relay and third relay；
The charging equipment anode connect with one end of the third relay, the other end of the third relay with it is described
The anode connection of battery core, the cathode of the battery core connect with one end of second relay, second relay it is another
End is connect with the cathode of the charging equipment.
4. the method according to claim 1, wherein the method also includes:
According to the Current Temperatures, the heating duration/of the heating equipment or the charging duration with the battery core are obtained；
The heating duration and/or the charging duration are shown respectively.
5. the device that a kind of pair of electric car carries out quick charge, which is characterized in that described device includes:
First obtains module, for obtaining the first charge parameter of the charging equipment when electric car connects charging equipment；
Determining module, for being determined according to the second charge parameter of first charge parameter and the electric car to the electricity
The first size of current that the heating equipment of the battery pack of electrical automobile is powered charges at a slow speed to the battery core of the battery pack
The second size of current and to the battery core carry out quick charge third size of current；
Second obtains module, for obtaining the Current Temperatures of the battery core；
First control module, if for the Current Temperatures lower than charging at a slow speed corresponding first preset temperature, described in control
Charging equipment is powered the heating equipment by first size of current, and by the heating equipment to the electricity
Core is heated；
Second control module, if being higher than first preset temperature for the Current Temperatures but being lower than the quick charge pair
The second preset temperature answered controls the charging equipment and is powered by first size of current to the heating equipment,
It is charged at a slow speed by second size of current to the battery core；
It is logical to control the charging equipment if being higher than second preset temperature for the Current Temperatures for third control module
It crosses the third size of current and quick charge is carried out to the battery core；
Wherein, first control module is also used to through controller local area network's CAN bus of the electric car to described
Charging equipment sends the first charge request, and first charge request carries first size of current, to request the charging
Equipment exports first size of current；The first charging circuit is generated, and passes through first charging circuit and first electricity
Stream size is powered the heating equipment；
Second control module is also used to send the second charge request to the charging equipment by the CAN bus, described
Second charge request carries the 4th size of current, and the 4th size of current is equal to second size of current and first electricity
The sum of size is flowed, to request the charging equipment to export the 4th size of current；First charging circuit is generated, and is passed through
First charging circuit and first size of current are powered the heating equipment, pass through first charging circuit
It is charged at a slow speed with second size of current to the battery core；
The third control module is also used to send third charge request to the charging equipment by the CAN bus, described
Third charge request carries the third size of current, to request the charging equipment to export the third size of current；It generates
Second charging circuit, and quick charge is carried out to the battery core by the second charging circuit and the third size of current.
6. device according to claim 5, which is characterized in that first charging circuit includes the charging equipment, institute
State heating equipment, the battery core, the first relay, the second relay and third relay；
The charging equipment anode connect with one end of the third relay, the other end of the third relay respectively with
The anode connection of the battery core is connected with one end of first relay, the other end of first relay and the heating
The anode connection of equipment；
The cathode of the heating equipment and the cathode of the battery core are connect with one end of second relay respectively；
The other end of second relay is connect with the cathode of the charging equipment.
7. device according to claim 5, which is characterized in that second charging circuit includes: the charging equipment, institute
State battery core, the second relay and third relay；
The charging equipment anode connect with one end of the third relay, the other end of the third relay with it is described
The anode connection of battery core, the cathode of the battery core connect with one end of second relay, second relay it is another
End is connect with the cathode of the charging equipment.
8. device according to claim 5, which is characterized in that described device further include:
Third obtains module, for according to the Current Temperatures, obtain the heating equipment heating duration/or with the battery core
Charging duration；
Display module, for showing the heating duration and/or the charging duration respectively.
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| CN110838740B (en) * | 2018-08-17 | 2021-11-09 | 珠海格力电器股份有限公司 | Charging current control method and device |
| CN112026547A (en) * | 2019-06-03 | 2020-12-04 | 广州汽车集团股份有限公司 | Vehicle, wireless charging control system, parking temperature monitoring device, system and method |
| CN110429684B (en) * | 2019-08-20 | 2021-03-02 | Oppo（重庆）智能科技有限公司 | Charging control method and device, electronic equipment and computer readable storage medium |
| CN111231764B (en) * | 2020-02-25 | 2021-08-03 | 威马智慧出行科技（上海）有限公司 | Electric vehicle battery thermal management method, electronic equipment and vehicle |
| CN111942228A (en) * | 2020-07-28 | 2020-11-17 | 中国第一汽车股份有限公司 | Low-temperature charging control system and control method for electric automobile |
| CN112406626A (en) * | 2020-11-09 | 2021-02-26 | 广州小鹏汽车科技有限公司 | Method and device for charging battery cell in low-temperature environment and vehicle |
| CN112994189A (en) * | 2021-04-28 | 2021-06-18 | 成都万创科技股份有限公司 | Method and device for adjusting battery charging current in real time based on ambient temperature |
| CN113541236A (en) * | 2021-06-11 | 2021-10-22 | 深圳易马达科技有限公司 | Charging cabinet, charging control method and device thereof, and storage medium |
| CN113928135B (en) * | 2021-11-25 | 2023-11-28 | 深圳市德力普电池科技有限公司 | Low-temperature charging method, system and storage medium for lithium ion power battery |
| CN114597539A (en) * | 2022-03-04 | 2022-06-07 | 山东大学 | Low-temperature heating-charging integrated topology for power battery of electric automobile and control method |
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