CN108202575A - A kind of electronic refrigerator car electric power system and its control method, electronic refrigerator car - Google Patents
A kind of electronic refrigerator car electric power system and its control method, electronic refrigerator car Download PDFInfo
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- CN108202575A CN108202575A CN201611167163.4A CN201611167163A CN108202575A CN 108202575 A CN108202575 A CN 108202575A CN 201611167163 A CN201611167163 A CN 201611167163A CN 108202575 A CN108202575 A CN 108202575A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00421—Driving arrangements for parts of a vehicle air-conditioning
- B60H1/00428—Driving arrangements for parts of a vehicle air-conditioning electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3232—Cooling devices using compression particularly adapted for load transporting vehicles
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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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
- B60L1/04—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits fed by the power supply line
- B60L1/10—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits fed by the power supply line with provision for using different supplies
-
- 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
- B60L2200/00—Type of vehicles
- B60L2200/36—Vehicles designed to transport cargo, e.g. trucks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The present invention provides a kind of electronic refrigerator car electric power system and its control method, electronic refrigerator cars.The electronic refrigerator car electric power system includes power battery, accumulator, control module and refrigeration unit.Cooling assembly includes High-Voltage Electrical Appliances group and low-voltage electrical apparatus group.Power battery is powered respectively to High-Voltage Electrical Appliances group and low-voltage electrical apparatus group, and DC/DC modules are set between power battery and low-voltage electrical apparatus group.Level-one switching group is equipped between DC/DC modules and low-voltage electrical apparatus group.Accumulator is connect by level-one switching group with low-voltage electrical apparatus group.When DC/DC module failures, control module is by controlling the action of level-one switching group so that power battery stops giving the power supply of low-voltage electrical apparatus group, changes and gives the power supply of low-voltage electrical apparatus group by accumulator.The setting of level-one switching group and accumulator can guarantee that low-voltage electrical apparatus group can also work normally, and the quality for loading article is unaffected when DC/DC modules break down.
Description
Technical field
The present invention relates to electric vehicles to supply electrical domain, and in particular to a kind of electronic refrigerator car electric power system and its control method,
Electronic refrigerator car.
Background technology
Chinese invention patent application application No. is CN201510027273.X discloses a kind of cold storage refrigeration of power type
Vehicle, the refrigerator car include refrigeration unit and for refrigeration unit power supply electrical energy system, the electrical energy system include accumulator and
Commercial power interface, power supply control circuit by interlock relay ensure accumulator and mains-supplied interlock function and mains-supplied with
Driving interlock function.But the electrical energy system for each relay state without in time monitoring and feedback, may cause when after
It cannot find and handle in time during apparatus failure, and without standby electric scheme as emergency measure, so as to cause temperature wave in compartment
The dynamic quality for influencing transport article.
Invention content
Present invention aims at a kind of electronic refrigerator car electric power system and its control method is provided, to solve above-mentioned existing skill
The problem of art part is mentioned.
To achieve the above objectives, including power battery, accumulator, control module and refrigeration unit, the cooling assembly packet
High-Voltage Electrical Appliances group and low-voltage electrical apparatus group are included, the power battery is connect respectively with High-Voltage Electrical Appliances group and low-voltage electrical apparatus group, described dynamic
DC/DC modules are also set up between power battery and low-voltage electrical apparatus group, wherein,
Level-one switching group is provided between the DC/DC modules and low-voltage electrical apparatus group；
The accumulator is connect by level-one switching group with low-voltage electrical apparatus group；
The control module can monitor the working condition of the DC/DC modules, and according to the working condition control of the DC/DC modules
The action of level-one switching group processed, selectively make the power battery connected with the low-voltage electrical apparatus group or make the accumulator and
The low-voltage electrical apparatus group connection.
Preferably, the level-one switching group is commutator K4, and the commutator K4 is equipped with moved end d, moved end e and motionless
F, the moved end d is held to be connect with DC/DC modules, the moved end e is connect with the accumulator, the non-moving end f and the low pressure
Electric appliance group connects, and the commutator K4 is normally closed in d ends；When DC/DC module failures, the control module controls commutator
K4 is closed to moved end e, is powered by the accumulator to low-voltage electrical apparatus group.
Preferably, the electronic refrigerator car electric power system further includes commercial power interface, AC/DC modules and secondary switch group；
The commercial power interface can access alternating current；
The commercial power interface is connect simultaneously with High-Voltage Electrical Appliances group and AC/DC modules；
The secondary switch group is arranged between the DC/DC modules and level-one switching group, the AC/DC modules and the two level
Switching group connects, and the control module can monitor the working condition of the commercial power interface, and according to the work of the commercial power interface
State controls the action of secondary switch group, and the power battery is selectively made to be connected with the low-voltage electrical apparatus group or makes the city
Electrical interface is connected with the low-voltage electrical apparatus group.
Preferably, the secondary switch group is commutator K3, and the commutator K3 is equipped with moved end a, moved end b and motionless
C, the moved end a is held to be connect with AC/DC modules, the moved end b is connect with the DC/DC modules, the non-moving end c and described one
Grade switching group connection, the commutator K3 are normally closed in a ends；When commercial power interface does not access alternating current, the control module control
Commutator K3 processed is closed to moved end b, is powered by the power battery to low-voltage electrical apparatus group；When commercial power interface accesses alternating current,
The control module control commutator K3 is closed to moved end a, is powered by alternating current by commercial power interface to low-voltage electrical apparatus group.
Preferably, the level-one switching group is commutator K4, and the commutator K4 is equipped with moved end d, moved end e and motionless
Hold f, the moved end d connect with the non-moving end c, and the moved end e is connect with the accumulator, the non-moving end f with it is described low
Piezoelectricity device group connects, and the commutator K4 is normally closed in d ends；When AC/DC modules or DC/DC module failures, the control mould
Block control commutator K4 is closed to moved end e, is powered by the accumulator to low-voltage electrical apparatus group.
Preferably, electronic refrigerator car electric power system further includes three step switch group, the three step switch group include switch K10 and
Auxiliary switch K11, the switch K10 are normal open switch, and the auxiliary switch K11 is normally closed switch, when the switch K10 is closed
When, the auxiliary switch K11 is disconnected；
The switch K10 is arranged between the commercial power interface and refrigeration unit, i.e., described switch K10 one end connects with commercial power interface
It connects, the other end is connect respectively with High-Voltage Electrical Appliances group, AC/DC modules；
The auxiliary switch K11 is arranged between the power battery and refrigeration unit, i.e., described auxiliary switch K11 one end is with moving
Power battery connects, and the other end is connect respectively with High-Voltage Electrical Appliances group, DC/DC modules.
Preferably, switch K2 is additionally provided between the auxiliary switch K11 and the refrigeration unit, i.e., described switch K2 one end
It is connect with auxiliary switch K11, the other end is connect respectively with High-Voltage Electrical Appliances group, DC/DC modules, and the switch K2 is normal open switch.
Preferably, the High-Voltage Electrical Appliances group includes frequency converter and compressor, described frequency converter one end and switch K2, switch
K10 connections, the other end are connect with the compressor, and the low-voltage electrical apparatus group includes electronic fan and temperature sensor.
The advantageous effect of electronic refrigerator car electric power system provided by the invention：The setting of level-one switching group and accumulator can be protected
When the AC/DC modules or DC/DC modules break down, low-voltage electrical apparatus group can also work normally card.Electricity provided by the invention
Dynamic refrigerator car electric power system realizes mains-supplied by three step switch group, secondary switch group and switch K2 and power battery is powered
Interlocking, realize the duplicate protection of software and hardware, AC/DC modules and DC/DC modules make the high pressure that alternating current or power battery provide
Electricity is converted to the low tension needed for low-voltage electrical apparatus group.
The present invention also provides a kind of electronic refrigerator cars, and including refrigeration carriage body and partition board, the refrigeration carriage body is by the partition board
Refrigerated compartment and freezing room are separated into, wherein, the electronic refrigerator car further includes above-described electronic refrigerator car electric power system.
Preferably, the refrigerating compartment temperature may be provided at 0 ~ 20 DEG C, and freezer compartment temperature may be provided at -30 ~ 0 DEG C.
Preferably, the low-voltage electrical apparatus group includes being arranged on the electronic fan inside refrigerating carriage body, and the partition board is equipped with side
Shape air duct, the electronic fan by the square duct by the cold air of freezing room pumping to the refrigerated compartment.
Preferably, the low-voltage electrical apparatus group includes being arranged on the temperature sensor inside refrigerating carriage body.
The advantageous effect of electronic refrigerator car provided by the invention：The electronic refrigerator car of the present invention is equipped with the different freezing of temperature
Cabin and refrigerated compartment, the setting in dual temperature area can preferably keep to different loading articles in cold storage, be conducive to for loading article
Reasonable distribution is carried out, while the electronic refrigerator car reduces the connection of pipeline, by directly opening up square air channel, realize dual temperature area
Setting, reduce cold loss.
In addition, the present invention also provides a kind of control method of electronic refrigerator car electric power system, act on a kind of electronic cold
Vehicle electric power system is hidden,
The electronic refrigerator car electric power system includes power battery, accumulator, control module and refrigeration unit, the cooling assembly
Including High-Voltage Electrical Appliances group and low-voltage electrical apparatus group, the power battery is connect respectively with High-Voltage Electrical Appliances group and low-voltage electrical apparatus group, described
DC/DC modules are also set up between power battery and low-voltage electrical apparatus group；
The control method of the electronic refrigerator car electric power system is：
Control module can monitor the working condition of the DC/DC modules, and judge DC/DC modules whether failure, if DC/DC modules
It breaks down, then the power battery stops powering to low-voltage electrical apparatus group, changes and is powered by accumulator to low-voltage electrical apparatus group, if DC/
DC modules do not break down, then are powered from power battery to low-voltage electrical apparatus group.
Preferably, the electronic refrigerator car electric power system further includes commercial power interface, the commercial power interface respectively with high-voltage electricity
Device group is connected with low-voltage electrical apparatus group, and AC/DC modules are also set up between the commercial power interface and low-voltage electrical apparatus group；
The control method of the electronic refrigerator car electric power system further includes：
Control module can monitor whether the commercial power interface accesses alternating current, when the commercial power interface accesses alternating current, be led to by alternating current
It crosses commercial power interface to power to refrigeration unit, when the commercial power interface does not access alternating current, from the power battery to refrigeration machine
Group power supply；
Control module can also monitor the working condition of the AC/DC modules, when AC/DC module failures, the commercial power interface
Stop powering to low-voltage electrical apparatus group, change and powered by accumulator to low-voltage electrical apparatus group.
The advantageous effect of the control method of electronic refrigerator car electric power system provided by the invention：As AC/DC modules or DC/DC
When module starts failure, accumulator can be used as the stand-by power supply of low-voltage electrical apparatus group, ensure that low-voltage electrical apparatus group can work normally.
The present invention electronic refrigerator car electric power system control method energy according to whether there is city to be electrically accessed and carry out power battery power supply and
The automatic switchover of mains-supplied pattern reduces and improves vehicle security while consumption to power battery.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is together for explaining invention, but and be not construed as limiting the present invention limitation.In the accompanying drawings：
Fig. 1 is the system block diagram of the electronic refrigerator car electric power system described in one embodiment of the invention；
Fig. 2 is system block diagram when the electronic refrigerator car electric power system described in one embodiment of the invention is powered by power battery；
Fig. 3 is the structure diagram of the electronic refrigerator car described in one embodiment of the invention；
Fig. 4 is the flow chart of the control method of the electronic refrigerator car electric power system described in one embodiment of the invention；
Fig. 5 is the flow that electronic refrigerator car electric power system described in one embodiment of the invention enters vehicle power mode in the first way
Figure；
Fig. 6 is the flow that electronic refrigerator car electric power system described in one embodiment of the invention enters vehicle power mode in a second manner
Figure；
Fig. 7 is the flow chart that electronic refrigerator car electric power system described in one embodiment of the invention enters utility mode；
Fig. 8 is the flow chart that the electronic refrigerator car electric power system described in one embodiment of the invention enters standby power mode.
Drawing reference numeral：
1- power batteries；2- commercial power interfaces；3- accumulators；4- frequency converters；5- compressors；6- low-voltage electrical apparatus groups；7-DC/DC moulds
Block；8-AC/DC modules；9- chassis；10- freezing rooms；11- refrigerated compartments；12- refrigerates carriage body；13- partition boards；14- condensers；15- steams
Send out device.
Specific embodiment
In order to which technical problem solved by the invention, technical solution and advantageous effect is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Embodiment 1
As shown in Figure 1, present embodiment discloses a kind of electronic refrigerator car electric power system, including：
Power battery 1, can export the direct current of 540V, and power battery 1 can provide DC high-voltage for refrigeration unit；
Commercial power interface 2 can turn on alternating current, and city's electric energy exports the alternating current of 380V, and city's electric energy provides exchange height for refrigeration unit
Piezoelectricity；
Accumulator 3 can provide 24V low tensions；
Level-one switching group, is a commutator K4, and commutator K4 is equipped with moved end d, moved end e and non-moving end f, commutator K4
It is normally closed in moved end d；
Secondary switch group, is a commutator K3, and commutator K3 is equipped with moved end a, moved end b and non-moving end c, commutator K3
It is normally closed in moved end a；
Three step switch group, including switching K10 and auxiliary switch K11, switch K10 is normal open switch, and auxiliary switch K11 is normally closed
Switch, when switching K10 closures, auxiliary switch K11 is disconnected；
K2 is switched, is normal open switch；
Cooling assembly, including High-Voltage Electrical Appliances group and low-voltage electrical apparatus group 6, High-Voltage Electrical Appliances group includes frequency converter 4 and compressor 5, low
Piezoelectricity device group 6 includes electronic fan and temperature sensor；
AC high voltage can be converted to the 24V needed for low-voltage electrical apparatus group 6 by AC/DC modules 8 and DC/DC modules 7, AC/DC modules 8
DC high-voltage can be converted to the 24V low-voltage DCs needed for low-voltage electrical apparatus group 6 by low-voltage DC, DC/DC modules 7；
Control module is used to monitor cooling assembly, power battery 1, commercial power interface 2, accumulator 3, AC/DC modules 8 and DC/DC
The working condition of module 7, control module can control switch K10, auxiliary switch K11, switch K2, commutator K3 and commutator
Closure/disconnection of K4.
As shown in Figure 1, switch K10 one end connect with commercial power interface 2, the other end respectively with frequency converter 4, AC/DC modules 8
Connection；Power battery 1, auxiliary switch K11 and switch K2 are sequentially connected in series, and described K2 one end is connect with auxiliary switch K11, the other end
It is connect with frequency converter 4, DC/DC modules 7；4 one end of frequency converter is connect with switch K2, switch K10, and the other end is connect with compressor 5；
8 one end of AC/DC modules is connect with switch K10, and the other end is connect with the moved end a of commutator K3；7 one end of DC/DC modules is with opening
K2 connections are closed, the other end is connect with the moved end b of commutator K3；The non-moving end c of the moved end d and commutator K3 of commutator K4
Connection, the moved end e of commutator K4 are connect with accumulator 3, and the non-moving end f of commutator K4 is connect with low-voltage electrical apparatus group 6.
When there is control module to detect that city is electrically accessed, switch K10 is closed, and auxiliary switch K11 is disconnected, and switch K2 breaks
It opens, commutator K3 is closed to moved end a, and commutator K4 is closed to moved end d, and alternating current is supplied by commercial power interface 2 to refrigeration unit
Electricity.
When there is control module to detect that no city is electrically accessed, switch K10 is disconnected, and auxiliary switch K11 is closed, and switch K2 is closed
It closes, commutator K3 is closed to moved end b, and commutator K4 is closed to moved end d, and power battery 1 is powered to refrigeration unit.
When AC/DC modules 8 or DC/DC modules 7 start failure, commutator K4 is closed to moved end e, is given by accumulator 3
Low-voltage electrical apparatus group 6 is powered, and the continuation of High-Voltage Electrical Appliances group is powered by alternating current or power battery 1.Specifically, as shown in Fig. 2, when power supply
When system does not access alternating current, power battery 1 is powered to refrigeration unit, if DC/DC modules 7 normally start, commutator K4
Moved end d is closed to, power battery 1 is powered to low-voltage electrical apparatus group 6.If DC/DC modules 7 break down, it is impossible to start, then double-throw is opened
It closes K4 and is closed to moved end e, accumulator 3 is powered to low-voltage electrical apparatus group 6.
In the electronic refrigerator car electric power system of the present embodiment, the setting of level-one switching group and accumulator 3 can guarantee in institute
When stating AC/DC modules 8 or the failure of DC/DC modules 7, low-voltage electrical apparatus group 6 can also work normally.The electronic refrigeration of the present embodiment
Vehicle electric power system by three step switch group, secondary switch group and switch K2 realize mains-supplied and power battery 1 power it is mutual
Lock, realizes the duplicate protection of software and hardware, and AC/DC modules 8 and DC/DC modules 7 make the high-voltage electricity that alternating current or power battery 1 provide
It is converted to the low tension needed for low-voltage electrical apparatus group 6.
Embodiment 2
As shown in Figure 3 the present embodiment provides a kind of electronic refrigerator car, including operation panel, chassis 9, condenser 14, evaporator
15th, partition board 13, refrigeration carriage body 12 and electronic refrigerator car electric power system described in embodiment 1, condenser 14 are arranged on refrigeration carriage body
Outside 12, evaporator 15 is arranged on inside refrigeration carriage body 12, and refrigeration carriage body 12 is fixed on chassis 9, and refrigeration carriage body 12 is by partition board
13 are separated into refrigerated compartment 11 and freezing room 10.
Wherein, 11 temperature of refrigerated compartment may be provided at 0 ~ 20 DEG C, and 10 temperature of freezing room may be provided at -30 ~ 0 DEG C.Electronic fan
It is arranged on inside refrigeration carriage body 12 with temperature sensor, partition board 13 is equipped with square air channel, and electronic fan is to by freezing room 10
Cold air pumps to refrigerated compartment 11 by the square duct.Temperature sensor can detect the temperature of refrigeration carriage body 12, and to operation
The relevant temperature signal of plane transport facilitates the temperature of user's understanding refrigeration carriage body 12 with this.
The electronic refrigerator car of the present embodiment is equipped with the different freezing room 10 of temperature and refrigerated compartment 11, and the setting in dual temperature area can be more
It keeps in cold storage to different loading articles well, is conducive to carry out reasonable distribution, while the electronic refrigeration for loading article
Vehicle reduces the connection of pipeline, by directly opening up square air channel, realizes the setting in dual temperature area, reduces cold loss.
Embodiment 3
The present embodiment provides a kind of control methods of electronic refrigerator car electric power system, act on described in embodiment 1 electronic cold
Hide vehicle electric power system.
As shown in figure 4, the main flow of the control method of the electronic refrigerator car electric power system includes the following steps：
Step S1 is has detected whether that city is electrically accessed, and whether specially control module detection commercial power interface accesses alternating current, if city
Electrical interface has accessed alternating current, then performs step S3, if commercial power interface does not access alternating current, performs step S2.
Step S2 is into vehicle power mode, and specially power battery is powered to refrigeration unit.
Step S3 is into utility mode, and specially alternating current is powered by commercial power interface to refrigeration unit.
Whether step S4 successfully starts up for detection AC/DC modules or DC/DC modules, specifically, DC/DC modules in step S2
It can be activated, control module can judge whether DC/DC modules successfully start up, if DC/DC modules successfully start up, electric power system
Continue to keep vehicle power mode, if DC/DC modules start failure, perform step S5；Similarly, when AC/DC modules in step S3
Start successfully, electric power system continues to keep utility mode, if AC/DC modules start failure, performs step S5.
Step S5 is to enter standby power mode, is powered specifically by accumulator to low-voltage electrical apparatus group.
Specifically, electric power system can enter vehicle power mode in step S2, and electric power system can enter the mode packet of vehicle power mode
Include first method and second method.The first method is suitable for when electronic refrigerator car just starts, and electric power system generally can be into
Enter vehicle power mode, electric power system can carry out preliminary filling to refrigeration unit at this time.And the second method is suitable for electric system from city
Power mode is switched to the situation of vehicle power mode.
As shown in figure 5, when electric power system enters vehicle power mode in the first way, step S2 is specifically included：
Step S201, control module control switch K2 is closed, commutator K3 is closed to non-moving end b；
Step S202, electric power system carries out preliminary filling to refrigeration unit, carry out preliminary filling operation can avoid since voltage increases suddenly and
Caused by electric power system electric elements damage situation；
Step S203, control module judges preliminary filling by monitoring the voltage of frequency converter voltage, AC/DC modules and DC/DC modules
Whether complete, continue step S202 if preliminary filling is not completed, step S204 is performed if preliminary filling is completed；
Step S204, be delayed 10s, then starts DC/DC modules, frequency converter and low-voltage electrical apparatus group, by power battery to refrigeration machine
Group power supply.
As shown in fig. 6, when electric power system enters vehicle power mode in a second manner, step S2 is specifically included：
Step S211, control module control switch K10 is disconnected, while auxiliary switch K11 is closed；
Step S212, control module control switch K2 is closed, commutator K3 is closed to non-moving end b；
Step S213, be delayed 10s, then starts DC/DC modules, frequency converter and low-voltage electrical apparatus group, by power battery to refrigeration machine
Group power supply.
As shown in fig. 7, electric power system enters the specific steps of vehicle power mode and includes in step S3：
Step S301, control module control switch K2 is disconnected, and ensures that power battery is not powered for refrigeration unit；
Step S302, control module detects no DC high-voltage again；
Step S303, control module control commutator K3 is closed to b sections of ends, switch K10 is closed, while auxiliary switch K11 breaks
It opens；
Step S304, be delayed 5s, then starts AC/DC modules, frequency converter and low-voltage electrical apparatus group, and supplying electricity to refrigeration unit by city supplies
Electricity.
As shown in figure 8, the specific steps of electric power system into standby power mode include in step S5：
Step S501, control module control commutator K4 is closed to moved end d, so no matter electric power system is in vehicle electricity originally
Pattern or utility mode, power battery or alternating current can stop powering to low-voltage electrical apparatus group；
Step S502, accumulator is powered for low-voltage electrical apparatus group, while High-Voltage Electrical Appliances group is still by power battery or mains-supplied；
Step S503, control module can detect DC/DC modules or whether the failure of AC/DC modules excludes, if troubleshooting, i.e.,
DC/DC modules or AC/DC modules can successfully start up, then perform step S504, otherwise continue step S502, continue by accumulator
It powers for low-voltage electrical apparatus group.
Step S504, control module control commutator K4 is closed to moved end e, is low-voltage electrical apparatus by power battery or alternating current
Group power supply, i.e. accumulator stop powering to low-voltage electrical apparatus group, and electric power system returns to original powering mode, by power battery or city
Supply electricity to refrigeration unit power supply.
The advantageous effect of the control method of the electronic refrigerator car electric power system of the present embodiment：When AC/DC modules or DC/DC moulds
When block starts failure, accumulator can be used as the stand-by power supply of low-voltage electrical apparatus group, ensure that low-voltage electrical apparatus group can work normally.This
The control method energy of the electronic refrigerator car electric power system of embodiment according to whether there is city to be electrically accessed and carry out power battery power supply and
The automatic switchover of mains-supplied pattern reduces and improves vehicle security while consumption to power battery.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (14)
1. a kind of electronic refrigerator car electric power system, including power battery, accumulator, control module and refrigeration unit, the refrigeration
Component includes High-Voltage Electrical Appliances group and low-voltage electrical apparatus group, and the power battery is connect respectively with High-Voltage Electrical Appliances group and low-voltage electrical apparatus group,
DC/DC modules are also set up between the power battery and low-voltage electrical apparatus group, which is characterized in that
Level-one switching group is provided between the DC/DC modules and low-voltage electrical apparatus group；
The accumulator is connect by level-one switching group with low-voltage electrical apparatus group；
The control module can monitor the working condition of the DC/DC modules, and according to the working condition control of the DC/DC modules
The action of level-one switching group processed, selectively make the power battery connected with the low-voltage electrical apparatus group or make the accumulator and
The low-voltage electrical apparatus group connection.
2. electronic refrigerator car electric power system as described in claim 1, which is characterized in that the level-one switching group is commutator
K4, the commutator K4 are equipped with moved end d, moved end e and non-moving end f, and the moved end d is connect with DC/DC modules, the moved end e
It is connect with the accumulator, the non-moving end f is connect with the low-voltage electrical apparatus group, and the commutator K4 is normally closed in d ends；When
During DC/DC module failures, the control module control commutator K4 is closed to moved end e, by the accumulator to low-voltage electrical apparatus
Group power supply.
3. electronic refrigerator car electric power system as described in claim 1, which is characterized in that further include commercial power interface, AC/DC modules
With secondary switch group；
The commercial power interface can access alternating current；
The commercial power interface is connect simultaneously with High-Voltage Electrical Appliances group and AC/DC modules；
The secondary switch group is arranged between the DC/DC modules and level-one switching group, the AC/DC modules and the two level
Switching group connects, and the control module can monitor the working condition of the commercial power interface, and according to the work of the commercial power interface
State controls the action of secondary switch group, and the power battery is selectively made to be connected with the low-voltage electrical apparatus group or makes the city
Electrical interface is connected with the low-voltage electrical apparatus group.
4. electronic refrigerator car electric power system as claimed in claim 3, which is characterized in that the secondary switch group is commutator
K3, the commutator K3 are equipped with moved end a, moved end b and non-moving end c, and the moved end a is connect with AC/DC modules, the moved end b
It is connect with the DC/DC modules, the non-moving end c is connect with the level-one switching group, and the commutator K3 is normally closed in a ends；
When commercial power interface does not access alternating current, the control module control commutator K3 is closed to moved end b, by the power
Battery is powered to low-voltage electrical apparatus group；
When commercial power interface accesses alternating current, the control module control commutator K3 is closed to moved end a, passes through alternating current by alternating current
Interface is powered to low-voltage electrical apparatus group.
5. electronic refrigerator car electric power system as claimed in claim 4, which is characterized in that the level-one switching group is commutator
K4, the commutator K4 are equipped with moved end d, moved end e and non-moving end f, and the moved end d is connect with the non-moving end c, the moved end
E is connect with the accumulator, and the non-moving end f is connect with the low-voltage electrical apparatus group, and the commutator K4 is normally closed in d ends；When
When AC/DC modules or DC/DC module failures, the control module control commutator K4 is closed to moved end e, by the accumulator
It powers to low-voltage electrical apparatus group.
6. electronic refrigerator car electric power system as claimed in claim 5, which is characterized in that further include three step switch group, described three
It is normal open switch that grade switching group, which includes switch K10 and auxiliary switch K11, the switch K10, and the auxiliary switch K11 is normally closed
Switch, when the switch K10 is closed, the auxiliary switch K11 is disconnected；
The switch K10 is arranged between the commercial power interface and refrigeration unit, i.e., described switch K10 one end connects with commercial power interface
It connects, the other end is connect respectively with High-Voltage Electrical Appliances group, AC/DC modules；
The auxiliary switch K11 is arranged between the power battery and refrigeration unit, i.e., described auxiliary switch K11 one end is with moving
Power battery connects, and the other end is connect respectively with High-Voltage Electrical Appliances group, DC/DC modules.
7. electronic refrigerator car electric power system as claimed in claim 6, which is characterized in that the auxiliary switch K11 and the system
Be additionally provided between cold group switch K2, i.e., it is described switch K2 one end connect with auxiliary switch K11, the other end respectively with High-Voltage Electrical Appliances
Group, the connection of DC/DC modules, the switch K2 is normal open switch.
8. electronic refrigerator car electric power system as claimed in claim 7, which is characterized in that the High-Voltage Electrical Appliances group includes frequency converter
And compressor, described frequency converter one end are connect with switch K2, switch K10, the other end is connect with the compressor, the low tension
Device group includes electronic fan and temperature sensor.
9. a kind of electronic refrigerator car, including refrigeration carriage body and partition board, the refrigeration carriage body is separated into refrigerated compartment by the partition board
And freezing room, which is characterized in that the electronic refrigerator car that the electronic refrigerator car further includes described in claim 1 ~ 8 any one supplies
Electric system.
10. electronic refrigerator car as claimed in claim 9, which is characterized in that the refrigerating compartment temperature may be provided at 0 ~ 20 DEG C, cold
Freeze cabin temperature and may be provided at -30 ~ 0 DEG C.
11. electronic refrigerator car as claimed in claim 10, which is characterized in that the low-voltage electrical apparatus group includes being arranged on refrigerating carriage
The electronic fan in internal portion, the partition board are equipped with square air channel, and the electronic fan is described the cold air of freezing room to be passed through
Square duct pumps to the refrigerated compartment.
12. electronic refrigerator car as claimed in claim 11, which is characterized in that the low-voltage electrical apparatus group includes being arranged on refrigerating carriage
The temperature sensor in internal portion.
13. a kind of control method of electronic refrigerator car electric power system, acts on a kind of electronic refrigerator car electric power system, feature
It is,
The electronic refrigerator car electric power system includes power battery, accumulator, control module and refrigeration unit, the cooling assembly
Including High-Voltage Electrical Appliances group and low-voltage electrical apparatus group, the power battery is connect respectively with High-Voltage Electrical Appliances group and low-voltage electrical apparatus group, described
DC/DC modules are also set up between power battery and low-voltage electrical apparatus group；
The control method of the electronic refrigerator car electric power system is：
Control module can monitor the working condition of the DC/DC modules, and judge DC/DC modules whether failure, if DC/DC modules
It breaks down, then the power battery stops powering to low-voltage electrical apparatus group, changes and is powered by accumulator to low-voltage electrical apparatus group, if DC/
DC modules do not break down, then are powered from power battery to low-voltage electrical apparatus group.
14. the control method of the electronic refrigerator car electric power system such as claim 13, which is characterized in that the electronic refrigerator car supplies
Electric system further includes commercial power interface, and the commercial power interface is connect respectively with High-Voltage Electrical Appliances group and low-voltage electrical apparatus group, and the alternating current connects
AC/DC modules are also set up between mouth and low-voltage electrical apparatus group；
The control method of the electronic refrigerator car electric power system further includes：
Control module can monitor whether the commercial power interface accesses alternating current, when the commercial power interface accesses alternating current, be led to by alternating current
It crosses commercial power interface to power to refrigeration unit, when the commercial power interface does not access alternating current, from the power battery to refrigeration machine
Group power supply；
Control module can also monitor the working condition of the AC/DC modules, when AC/DC module failures, the commercial power interface
Stop powering to low-voltage electrical apparatus group, change and powered by accumulator to low-voltage electrical apparatus group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611167163.4A CN108202575A (en) | 2016-12-16 | 2016-12-16 | A kind of electronic refrigerator car electric power system and its control method, electronic refrigerator car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611167163.4A CN108202575A (en) | 2016-12-16 | 2016-12-16 | A kind of electronic refrigerator car electric power system and its control method, electronic refrigerator car |
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| CN108202575A true CN108202575A (en) | 2018-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611167163.4A Pending CN108202575A (en) | 2016-12-16 | 2016-12-16 | A kind of electronic refrigerator car electric power system and its control method, electronic refrigerator car |
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