CN103855748A - Vehicle charging system and method - Google Patents
Vehicle charging system and method Download PDFInfo
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- CN103855748A CN103855748A CN201210518504.3A CN201210518504A CN103855748A CN 103855748 A CN103855748 A CN 103855748A CN 201210518504 A CN201210518504 A CN 201210518504A CN 103855748 A CN103855748 A CN 103855748A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
A vehicle charging system comprises a power battery, a first battery manager, a direct current converter, a whole vehicle controller and a storage battery component. The whole vehicle controller controls connecting or disconnecting of the direct current converter, so that a power battery starts to charge the storage battery component or stops charging the storage battery component. The storage battery component comprises a battery pack, a charging DC/DC and a second battery manager. During the process that the power battery charges the storage battery component, the whole vehicle controller controls connecting or disconnecting of the direct current converter according to battery state information uploaded by the first battery manager and the second battery manager, so that a power battery starts to charge the storage battery component or stops charging the storage battery component, the second battery manager monitors the state of the battery pack, the charging DC/DC is controlled to charge the battery pack, accordingly, the vehicle charging system can monitor the state of the storage battery component in real time, and effective management can be carried out on charging of the storage battery component.
Description
Technical field
The present invention relates to new energy vehicle field, relate in particular to a kind of charging system and charging method thereof of vehicle.
Background technology
Storage battery is a kind of very important parts in vehicular field, can storage battery directly have influence on car load and normally start and power to power consumption equipment, vehicle in the process of moving, can consume the electric weight of a part of storage battery, if storage battery over-discharge can cause discharged or defective battery, the dump energy of storage battery, lower than starting electric weight, directly causes vehicle cannot start next time, therefore needs vehicle-mounted storage battery to charge.
In the prior art, storage battery does not possess the function of battery management, in the process charging a battery, can cause the overcharging of storage battery at external power source, even damages storage battery.
Summary of the invention
Technical problem to be solved by this invention is can not Real-Time Monitoring battery condition for the storage battery of prior art itself, easily cause the problem overcharging, provide the one can Real-Time Monitoring accumulator cell assembly state, can implement effectively charging system and the charging method thereof of the vehicle of management to the charging of accumulator cell assembly.
Above-mentioned technical problem of the present invention is achieved by the following technical programs: a kind of charging system of vehicle, comprises electrokinetic cell, the first battery manager, direct current transducer, entire car controller and accumulator cell assembly; Described the first battery manager connects respectively electrokinetic cell and entire car controller, for monitoring the state of electrokinetic cell, and state information is uploaded to described entire car controller; Described direct current transducer is connected between electrokinetic cell and accumulator cell assembly, for carry out voltage transitions between electrokinetic cell and accumulator cell assembly; Described entire car controller is connected with accumulator cell assembly with direct current transducer respectively, makes electrokinetic cell start or stop the charging of accumulators assembly for controlling the break-make of direct current transducer; Described accumulator cell assembly comprises battery pack, charging DC/DC and the second battery manager, and described the second battery manager is used for monitoring battery pack state, and controls described charging DC/DC to batteries charging.
Further, described entire car controller is connected with described the second battery manager, and described the second battery manager is for being uploaded to entire car controller by the state information of battery pack.
Further, described entire car controller at the dump energy of described battery pack when starting SOC, allow to control direct current transducer conducting, make electrokinetic cell accumulators assembly start charging; And described entire car controller, in the time that the dump energy of described battery pack is 100%, allows to control direct current transducer and disconnects, and makes electrokinetic cell accumulators assembly stop charging.
Further, described entire car controller for the temperature of described battery pack in minimum temperature threshold between maximum temperature threshold value time, allow to control direct current transducer conducting, make electrokinetic cell accumulators assembly start charging; And described entire car controller, for, allowing to control direct current transducer and disconnect during lower than minimum temperature threshold or higher than maximum temperature threshold value in the temperature of described battery pack, makes electrokinetic cell accumulators assembly stop charging.
Further, described charging DC/DC comprises DC relay, and described the second battery manager is used for triggering the conducting of DC relay or disconnection, and then controls charging DC/DC and export different charging currents to battery pack.
Further, the first electrode of described battery pack connects the positive pole of electrokinetic cell, and the second electrode of battery pack connects the negative pole of electrokinetic cell; The first input end of described charging DC/DC connects the positive pole of electrokinetic cell, and the first output connects the negative pole of electrokinetic cell, and the second input is connected with the second battery manager, and the second output is connected with battery pack; Described the second battery manager connects respectively positive pole and the negative pole of electrokinetic cell; Between the first electrode of described battery pack and the positive pole of electrokinetic cell, be provided with counnter attack diode.
Further, described vehicle is pure electric vehicle or hybrid electric vehicle.
The present invention further provides a kind of charging method of charging system of above-mentioned car two, comprised the steps: state of temperature and the state of charge of described the second battery manager monitoring battery pack, and state information is uploaded to entire car controller; Described entire car controller the temperature of described battery pack in minimum temperature threshold between maximum temperature threshold value time, and described entire car controller at the dump energy of described battery pack when starting SOC, control direct current transducer conducting, make electrokinetic cell accumulators assembly start charging; Described the second battery manager is used for monitoring battery pack state, and controls described charging DC/DC to batteries charging; Described entire car controller, in the time that the dump energy of described battery pack is 100%, is controlled direct current transducer and is disconnected, and makes electrokinetic cell accumulators assembly stop charging, and charging completes.
Further, the charging system of described vehicle carries out fault self-checking, and fail result is uploaded to entire car controller, and in the time that the charging system of described vehicle breaks down, described vehicle control unit controls direct current transducer disconnects, complete charge.
Further, comprising: described entire car controller, is controlled direct current transducer and disconnected during lower than minimum temperature threshold or higher than maximum temperature threshold value in the temperature of described battery pack, makes electrokinetic cell accumulators assembly stop charging.
Further, in the time detecting that car load is OFF shelves electricity, before described S101 step, further comprising the steps of, described entire car controller, in the time car door, boot or front hatch cover being detected in closed condition not, is controlled direct current transducer and is disconnected, and does not allow the charging of electrokinetic cell accumulators assembly.
Further, in the time detecting that car load is OFF shelves electricity, after described S103 step, further comprising the steps of, described entire car controller detects that car door, boot or front hatch cover are in the time of closed condition not, controls direct current transducer and disconnects, and makes electrokinetic cell accumulators assembly stop charging.
Further, described the second battery manager, according to the difference of battery pack temperature, is controlled charging DC/DC and is exported different charging currents to battery pack.
Further, described the second battery manager control charging DC/DC with the charging modes of constant voltage to batteries charging.
According to the charging system of a kind of vehicle provided by the invention, comprising: electrokinetic cell, the first battery manager, direct current transducer, entire car controller and accumulator cell assembly; Described the first battery manager connects respectively electrokinetic cell and entire car controller, for monitoring the state of electrokinetic cell, and state information is uploaded to described entire car controller; Described direct current transducer is connected between electrokinetic cell and accumulator cell assembly, for carry out voltage transitions between electrokinetic cell and accumulator cell assembly; Described entire car controller is connected with accumulator cell assembly with direct current transducer respectively, makes electrokinetic cell start or stop the charging of accumulators assembly for controlling the break-make of direct current transducer; Described accumulator cell assembly comprises battery pack, charging DC/DC and the second battery manager, and described the second battery manager is used for monitoring battery pack state, and controls described charging DC/DC to batteries charging.In the charging system of above-mentioned vehicle, accumulator cell assembly is as low-tension supply, the second battery manager mates with low-tension supply, the state of Real-Time Monitoring battery pack, electrokinetic cell is as high voltage source, the first battery manager mates with high voltage source, the state of Real-Time Monitoring electrokinetic cell, therefore accumulator cell assembly and electrokinetic cell have respectively independently battery management function, in the process of electrokinetic cell accumulators assembly charging, the battery status information that entire car controller is uploaded according to the first battery manager and the second battery manager, the break-make of controlling direct current transducer makes electrokinetic cell start or stop the charging of accumulators assembly, and the second battery manager monitoring battery pack state, control described charging DC/DC to batteries charging, therefore the charging system of above-mentioned vehicle, can Real-Time Monitoring accumulator cell assembly state, can implement effectively management to the charging of accumulator cell assembly.
In addition, the charging method of the charging system of a kind of above-mentioned vehicle providing according to invention, comprises the steps: state of temperature and the state of charge of described the second battery manager monitoring battery pack, and state information is uploaded to entire car controller; Described entire car controller the temperature of described battery pack in minimum temperature threshold between maximum temperature threshold value time, and described entire car controller at the dump energy of described battery pack when starting SOC, control direct current transducer conducting, make electrokinetic cell accumulators assembly start charging; Described the second battery manager is used for monitoring battery pack state, and controls described charging DC/DC to batteries charging; Described entire car controller, in the time that the dump energy of described battery pack is 100%, is controlled direct current transducer and is disconnected, and makes electrokinetic cell accumulators assembly stop charging.According to above-mentioned charging method, the information that entire car controller is uploaded according to the first battery manager and the second battery manager, the break-make of controlling direct current transducer makes electrokinetic cell start or stop the charging of accumulators assembly, the second battery manager monitoring battery pack state, and control described charging DC/DC to batteries charging, can Real-Time Monitoring accumulator cell assembly state, can implement effectively management to the charging of accumulator cell assembly.
Accompanying drawing explanation
Fig. 1 is the charging system block diagram of vehicle in an embodiment of the present invention.
Fig. 2 is the electrical connection graph of accumulator cell assembly in an embodiment of the present invention.
Fig. 3 is the flow chart of the charging method of the charging system of vehicle in an embodiment of the present invention.
Fig. 4 is the flow chart of the charging method of the charging system of vehicle when ON shelves are electric on car load in an embodiment of the present invention.
Fig. 5 is the flow chart of the charging method of the charging system of vehicle when OFF shelves are electric on car load in an embodiment of the present invention.
Embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated, be to be understood that, specific embodiment described herein only, in order to explain the present invention, is not intended to limit the present invention.
In description of the invention, it will be appreciated that, term " on ", orientation or the position relationship of the indication such as D score, " left side ", " right side ", " vertically ", " level ", 'fornt', 'back', " interior ", " outward " be orientation or the position relationship based on accompanying drawing, only the present invention for convenience of description and simplified characterization, rather than indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as limitation of the present invention.
In description of the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and can be to be also indirectly connected by intermediary, for a person skilled in the art, can understand as the case may be the concrete meaning of above-mentioned term.
The charging system block diagram of vehicle in an embodiment of the present invention as shown in Figure 1, a kind of charging system of vehicle, comprises electrokinetic cell 20, the first battery manager 40, direct current transducer 60, entire car controller 50 and accumulator cell assembly 10.Described electrokinetic cell 20 is as the high voltage source of vehicle, be mainly travelling of vehicle energy is provided, described the first battery manager 40 connects respectively electrokinetic cell 20 and entire car controller 50, further, described the first manager 40 is connected with electrokinetic cell 20 by sample line, gather the information such as electric weight, voltage, temperature of electrokinetic cell 20, for monitoring the state of electrokinetic cell 20; Described the first battery manager 40 is connected with entire car controller 50 by CAN line, and above-mentioned state information is uploaded to described entire car controller 50.
Described direct current transducer 60 is connected between electrokinetic cell 20 and accumulator cell assembly 10, for carry out voltage transitions between electrokinetic cell 20 and accumulator cell assembly 10, because electrokinetic cell 20 is as high voltage source, accumulator cell assembly 10 is as low-tension supply, in embodiment provided by the invention, when described accumulator cell assembly 10 charges, input voltage is 13.6V.Described direct current transducer 60 comprises DC relay, and by the break-make of DC relay, the break-make of controlling direct current transducer 60 makes electrokinetic cell start or stop accumulators assembly 10 to charge.
Described entire car controller 50 is connected with accumulator cell assembly 10 with direct current transducer 60 respectively, described entire car controller 50 connects by CAN line, according to the state of accumulator cell assembly 10, make electrokinetic cell 20 start or stop accumulators assembly 10 to charge for controlling the break-make of direct current transducer 60.
The electrical connection graph of accumulator cell assembly in an embodiment of the present invention as shown in Figure 2.Described accumulator cell assembly 10 comprises battery pack 11, charging DC/DC12 and the second battery manager 13, and described the second battery manager 13 is for monitoring battery pack 11 states, and controls described charging DC/DC12 and charge to battery pack 11.Accumulator cell assembly 10 is as low-tension supply, the second battery manager 13 mates with low-tension supply, the state of Real-Time Monitoring battery pack 11, electrokinetic cell 20 is as high voltage source, the first battery manager 40 mates with high voltage source, the state of Real-Time Monitoring electrokinetic cell 20, therefore accumulator cell assembly 10 and electrokinetic cell 20 have respectively independently battery management function, compare two above-mentioned battery managers are integrated in a total battery manager, the charging system of vehicle provided by the invention, module for low-tension supply and program are separated with module and program for high voltage source, programming and the structural design of battery manager are simplified, make the work of charging system of vehicle more reliable and more stable, in the process of charging at electrokinetic cell 20 accumulators assemblies 10, the battery status information that entire car controller 50 is uploaded according to the first battery manager 40 and the second battery manager 13, controlling the break-make of direct current transducer 50 makes electrokinetic cell 20 start or stop accumulators assembly 10 to charge, and the second battery manager 13 is monitored battery pack 11 states, controlling described charging DC/DC12 charges to battery pack 11, therefore the charging system of above-mentioned vehicle, can Real-Time Monitoring accumulator cell assembly 10 states, can implement effectively management to the charging of accumulator cell assembly 10, not only can avoid occurring overcharged problem, and can adopt different charging modes to implement accumulator cell assembly 10 to charge.
In embodiment provided by the invention, described entire car controller 50 is connected with the second battery manager 13, entire car controller 50 is connected by CAN line with the second battery manager 13, the second battery manager 13 is for being uploaded to entire car controller 50 by the state information of battery pack 11, then entire car controller 50 is according to this state information, and the break-make of controlling direct current transducer 60 makes electrokinetic cell 20 start or stop accumulators assembly 10 to charge.
In embodiment provided by the invention, described entire car controller 50 is connected with the first battery manager 40, in the time detecting that the electric weight of electrokinetic cell 20 is less than the electric weight of battery pack 11, entire car controller 50 is according to this state information, control direct current transducer 60 and disconnect, do not allow electrokinetic cell 20 accumulators assemblies 10 to charge.
Because the dump energy of battery pack 11 is lower than starting when SOC, can not normally start vehicle, so in embodiment provided by the invention, described entire car controller 50 at the dump energy of described battery pack 11 when starting SOC, allow to control direct current transducer 60 conductings, make electrokinetic cell 20 accumulators assemblies 10 start charging, described startup SOC changes along with the variation of battery pack 11 temperature, is not a fixed value; And described entire car controller 50, in the time that the dump energy of described battery pack 11 is 100%, allows to control direct current transducer 60 and disconnects, and makes electrokinetic cell 20 accumulators assemblies 10 stop charging.
In embodiment provided by the invention, described entire car controller 50 for the temperature in described battery pack 11 in minimum temperature threshold between maximum temperature threshold value time, allow to control direct current transducer 60 conductings, make electrokinetic cell 20 accumulators assemblies 10 start charging; And described entire car controller 50, for, allowing to control direct current transducer 60 and disconnect during lower than minimum temperature threshold or higher than maximum temperature threshold value in the temperature of described battery pack 11, makes electrokinetic cell 20 accumulators assemblies 10 stop charging.Further, described minimum temperature threshold is-40 degrees Celsius, and maximum temperature threshold value is 85 degrees Celsius.
Described charging DC/DC comprises DC relay 125, described the second battery manager 13 is for triggering 125 conductings of DC relay or disconnection, and then control charging DC/DC12 and export different charging currents to battery pack 11, further, the second battery manager 13 is controlled DC relay 125 ON time and the proportionate relationship of opening time, change the duty ratio of charging DC/DC12 output current, thereby change the size of charging current.
Described the second battery manager 13 is connected with battery pack 11 with charging DC/DC12 respectively, and described the second battery manager 13 is monitored battery pack 11 states, controls described DC/DC12 and charges to battery pack 11, and control described battery pack 11 and discharge.Further, the second battery manager 13 is connected with charging DC/DC12 by CAN line, is also connected with battery pack 11 by sample line, so that battery pack 11 is carried out to battery temperature sampling, voltage sample, current sample and electric weight detection etc. simultaneously.
Described battery pack 11, charging DC/DC12 and the second battery manager 13 are integrated in accumulator cell assembly 10.In one embodiment of the invention, the first electrode 111 of described battery pack 11 connects the positive pole 21 of electrokinetic cell 20, and the second electrode 112 of battery pack 11 connects the negative pole 22 of electrokinetic cell 20; The first input end 122 of described charging DC/DC12 connects the positive pole 21 of electrokinetic cell, the first output 123 connects the negative pole 22 of electrokinetic cell, the second input 124 of described charging DC/DC12 is connected with the second battery manager 13, and the second output 121 of described charging DC/DC12 is connected with battery pack 11.Accumulator cell assembly forms following charge circuit: electric current sends from electrokinetic cell 20 positive poles, through the positive pole of accumulator cell assembly, enter charging DC/DC12 by the first input end 122 of charging DC/DC12, then electric current enters battery pack 11 through the second output 121 of the DC/DC that overcharges, pass through from the second electrode 112 of battery pack 11, the final negative pole 22 that imports electrokinetic cell, thus complete charge circuit formed.As preferably, between the first electrode 111 of described battery pack and the positive pole 21 of electrokinetic cell, be provided with counnter attack diode 14, electric current is realized one-way conduction between the first electrode 111 of battery pack and the positive pole 21 of electrokinetic cell, thereby make the charge circuit of accumulator cell assembly 10 and discharge loop relatively independent, do not interfere with each other.
Described the second battery manager 13 connects respectively positive pole 21 and the negative pole 22 of electrokinetic cell.
Described battery pack 11 is ferric phosphate lithium cell, is composed in series by 4 batteries monomers.
Described vehicle is pure electric vehicle or hybrid electric vehicle.
The flow chart of the charging method of the charging system of vehicle in an embodiment of the present invention as shown in Figure 3.A charging method for the charging system of vehicle, comprises the steps:
S101: the second battery manager 13 is monitored state of temperature and the state of charge of battery pack 11, and state information is uploaded to entire car controller 50.
In the time detecting that car load is OFF shelves electricity, before described S101 step, further comprising the steps of, described entire car controller 50 is in the time car door, boot or front hatch cover being detected in closed condition not, control direct current transducer 60 and disconnect, do not allow electrokinetic cell 20 accumulators assemblies 10 to charge.
S102: entire car controller 50 the temperature of described battery pack 11 in minimum temperature threshold between maximum temperature threshold value time, and described entire car controller 50 at the dump energy of described battery pack 11 when starting SOC, control direct current transducer 60 conductings, make electrokinetic cell 20 accumulators assemblies 10 start charging; As preferably, further comprise: described entire car controller 50, is controlled direct current transducer 60 and disconnected during lower than minimum temperature threshold or higher than maximum temperature threshold value in the temperature of described battery pack, makes electrokinetic cell 20 accumulators assemblies 10 stop charging.
S103: the second battery manager 13 is for monitoring battery pack 11 states, and control described charging DC/DC12 and charge to battery pack 11.Described charging DC/DC12 comprises DC relay 125, and described the second battery manager 13 triggers 125 conductings of DC relay or disconnection, and then controls charging DC/DC12 and export different charging currents to battery pack 11.Because the character of battery pack 11 and the temperature of self are closely related, for according to the character of battery pack, realize charging better, in the present embodiment, the second battery manager 13, according to the difference of battery pack temperature, is controlled charging DC/DC12 and is exported different charging currents to battery pack 11.
In one embodiment, described the second battery manager 13 is controlled charging DC/DC12 and is charged to battery pack 11 with the charging modes of constant voltage, because battery pack internal resistance constantly changes, so charging current also changes thereupon, described charging current is along with the increase in charging interval is successively decreased gradually.
In another embodiment, described the second battery manager 13 control charging DC/DC12 successively with three kinds of different charging modes to batteries charging: trickle mode, current constant mode and constant voltage mode.Trickle mode Main Function is the activity that excites battery pack inside; Current constant mode Main Function is to be filled with most electric current to battery pack; Constant voltage mode Main Function is to prevent from overcharging to battery pack.The dump energy of charging current and battery pack is relevant, and the dump energy of battery pack is larger, and charging current is less; Charging interval is also relevant with the dump energy of battery pack, and the dump energy of battery pack is larger, and the charging interval is less.
In the time detecting that car load is OFF shelves electricity, after described S103 step, further comprising the steps of, described entire car controller 50 detects that car door, boot or front hatch cover are in the time of closed condition not, control direct current transducer 60 and disconnect, make electrokinetic cell 20 accumulators assemblies 10 stop charging.
S104: entire car controller 50, in the time that the dump energy of described battery pack 11 is 100%, is controlled direct current transducer 60 and disconnected, and makes electrokinetic cell 20 accumulators assemblies 10 stop charging, and charging completes.
In the charging system course of work of vehicle, the charging system of described vehicle carries out fault self-checking, and fail result is uploaded to entire car controller 50, and in the time that the charging system of described vehicle breaks down, described entire car controller 50 is controlled direct current transducer 60 and is disconnected, complete charge.
Fig. 4 is the flow chart of the charging method of the charging system of vehicle when ON shelves are electric on car load in an embodiment of the present invention, comprises the steps:
S201: ON shelves electricity on car load;
S202: temperature and the dump energy of monitoring battery pack;
S203: the temperature of battery pack whether in minimum temperature threshold between maximum temperature threshold value, if so, carry out S205, if not, carry out S204;
S204: vehicle control unit controls direct current transducer disconnects, makes electrokinetic cell stop charging to accumulator cell assembly;
S205: whether the dump energy of battery pack is lower than starting SOC; If so, carry out S207, if not, carry out S206;
S206: vehicle control unit controls direct current transducer disconnects, accumulator cell assembly stops charging;
S207: the conducting of vehicle control unit controls direct current transducer, makes electrokinetic cell accumulators assembly start charging;
S208: the second battery manager monitoring battery pack state, and control described charging DC/DC to batteries charging;
S209: whether the dump energy of battery pack is 100%, if so, carries out S210, if not, carries out S207.
Fig. 5 is the flow chart of the charging method of the charging system of vehicle when OFF shelves are electric on car load in an embodiment of the present invention, comprises the steps:
S301: OFF shelves electricity on car load;
S302: whether detect car door, front hatch cover or boot in closed condition, if so, carry out S304, if not, carry out S303;
S303: vehicle control unit controls direct current transducer disconnects, does not allow the charging of electrokinetic cell accumulators assembly;
S304: the temperature of battery pack whether in minimum temperature threshold between maximum temperature threshold value, and whether the dump energy of battery pack lower than starting SOC, if so, carries out S306, if not, carries out S305;
S305: vehicle control unit controls direct current transducer disconnects, makes electrokinetic cell stop charging to accumulator cell assembly;
S306: the conducting of vehicle control unit controls direct current transducer, makes electrokinetic cell accumulators assembly start charging;
S307: the second battery manager monitoring battery pack state, and control described charging DC/DC to batteries charging;
S308: whether detect car door, front hatch cover or boot in closed condition, if so, carry out S310, if not, carry out S309;
S309: vehicle control unit controls direct current transducer disconnects, makes electrokinetic cell stop charging to accumulator cell assembly;
S310: whether the dump energy of battery pack is 100%, if so, carries out S311, if not, carries out S306;
S311: vehicle control unit controls direct current transducer disconnects, makes electrokinetic cell stop charging to accumulator cell assembly, and charging completes.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (14)
1. a charging system for vehicle, comprising: electrokinetic cell, the first battery manager, direct current transducer, entire car controller and accumulator cell assembly;
Described the first battery manager connects respectively electrokinetic cell and entire car controller, for monitoring the state of electrokinetic cell, and state information is uploaded to described entire car controller;
Described direct current transducer is connected between electrokinetic cell and accumulator cell assembly, for carry out voltage transitions between electrokinetic cell and accumulator cell assembly;
Described entire car controller is connected with accumulator cell assembly with direct current transducer respectively, makes electrokinetic cell start or stop the charging of accumulators assembly for controlling the break-make of direct current transducer;
It is characterized in that, described accumulator cell assembly comprises battery pack, charging DC/DC and the second battery manager, and described the second battery manager is used for monitoring battery pack state, and controls described charging DC/DC to batteries charging.
2. the charging system of vehicle as claimed in claim 1, is characterized in that, described entire car controller is connected with described the second battery manager, and described the second battery manager is for being uploaded to entire car controller by the state information of battery pack.
3. the charging system of vehicle as claimed in claim 2, is characterized in that, described entire car controller at the dump energy of described battery pack when starting SOC, allow to control direct current transducer conducting, make electrokinetic cell accumulators assembly start charging; And described entire car controller, in the time that the dump energy of described battery pack is 100%, allows to control direct current transducer and disconnects, and makes electrokinetic cell accumulators assembly stop charging.
4. the charging system of vehicle as claimed in claim 2, it is characterized in that, described entire car controller for the temperature of described battery pack in minimum temperature threshold between maximum temperature threshold value time, allow to control direct current transducer conducting, make electrokinetic cell accumulators assembly start charging; And described entire car controller, for, allowing to control direct current transducer and disconnect during lower than minimum temperature threshold or higher than maximum temperature threshold value in the temperature of described battery pack, makes electrokinetic cell accumulators assembly stop charging.
5. the charging system of vehicle as claimed in claim 1, it is characterized in that, described charging DC/DC comprises DC relay, and described the second battery manager is used for triggering the conducting of DC relay or disconnection, and then controls charging DC/DC and export different charging currents to battery pack.
6. the charging system of vehicle as claimed in claim 1, is characterized in that,
The first electrode of described battery pack connects the positive pole of electrokinetic cell, and the second electrode of battery pack connects the negative pole of electrokinetic cell;
The first input end of described charging DC/DC connects the positive pole of electrokinetic cell, and the first output connects the negative pole of electrokinetic cell, and the second input is connected with the second battery manager, and the second output is connected with battery pack;
Positive pole and the negative pole of the electrokinetic cell that described the second battery manager connects respectively;
Between the first electrode of described battery pack and the positive pole of electrokinetic cell, be provided with counnter attack diode.
7. the charging system of vehicle as claimed in claim 1, is characterized in that, described vehicle is pure electric vehicle or hybrid electric vehicle.
8. a charging method for the charging system of the vehicle as described in any one in claim 1-7, is characterized in that, comprises the steps:
S101: state of temperature and the state of charge of described the second battery manager monitoring battery pack, and state information is uploaded to entire car controller;
S102: described entire car controller the temperature of described battery pack in minimum temperature threshold between maximum temperature threshold value time, and described entire car controller at the dump energy of described battery pack when starting SOC, control direct current transducer conducting, make electrokinetic cell accumulators assembly start charging;
S103: described the second battery manager is used for monitoring battery pack state, and control described charging DC/DC to batteries charging;
S104: described entire car controller, in the time that the dump energy of described battery pack is 100%, is controlled direct current transducer and disconnected, and makes electrokinetic cell accumulators assembly stop charging, and charging completes.
9. charging method as claimed in claim 8, is characterized in that, the charging system of described vehicle carries out fault self-checking, and fail result is uploaded to entire car controller, and in the time that the charging system of described vehicle breaks down, described vehicle control unit controls direct current transducer disconnects, complete charge.
10. charging method as claimed in claim 8, it is characterized in that, further comprise: described entire car controller, is controlled direct current transducer and disconnected during lower than minimum temperature threshold or higher than maximum temperature threshold value in the temperature of described battery pack, makes electrokinetic cell accumulators assembly stop charging.
11. charging methods as claimed in claim 8, it is characterized in that, in the time detecting that car load is OFF shelves electricity, before described S101 step, further comprising the steps of, described entire car controller, in the time car door, boot or front hatch cover being detected in closed condition not, is controlled direct current transducer and is disconnected, and does not allow the charging of electrokinetic cell accumulators assembly.
12. charging methods as claimed in claim 8, it is characterized in that, in the time detecting that car load is OFF shelves electricity, after described S103 step, further comprising the steps of, described entire car controller detects that car door, boot or front hatch cover are in the time of closed condition not, controls direct current transducer and disconnects, and makes electrokinetic cell accumulators assembly stop charging.
13. charging methods as claimed in claim 8, is characterized in that, described the second battery manager, according to the difference of battery pack temperature, is controlled charging DC/DC and exported different charging currents to battery pack.
14. charging methods as claimed in claim 8, is characterized in that, described the second battery manager control charging DC/DC with the charging modes of constant voltage to batteries charging.
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| CN201210518504.3A CN103855748B (en) | 2012-12-06 | 2012-12-06 | The charging system and its charging method of a kind of vehicle |
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| CN201210518504.3A CN103855748B (en) | 2012-12-06 | 2012-12-06 | The charging system and its charging method of a kind of vehicle |
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| CN103855748A true CN103855748A (en) | 2014-06-11 |
| CN103855748B CN103855748B (en) | 2017-08-22 |
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| CN (1) | CN103855748B (en) |
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| CN105140579A (en) * | 2015-09-18 | 2015-12-09 | 苏州达力客自动化科技有限公司 | Charging management device for lithium ion battery |
| CN105978099A (en) * | 2016-06-29 | 2016-09-28 | 浙江合众新能源汽车有限公司 | Low-voltage power supply management system for electric car |
| CN106080239A (en) * | 2016-07-01 | 2016-11-09 | 北京新能源汽车股份有限公司 | The low tension battery charge control method of electric vehicle and electric vehicle |
| CN106208270A (en) * | 2016-09-12 | 2016-12-07 | 厦门金龙旅行车有限公司 | The wireless charging system of a kind of electric motor car and control method thereof |
| CN106494234A (en) * | 2016-11-09 | 2017-03-15 | 简式国际汽车设计（北京）有限公司 | The protection system and method for the low tension battery under electric motor car power-down state |
| CN106849245A (en) * | 2017-02-28 | 2017-06-13 | 厦门理工学院 | A kind of intelligent charge control method of hybrid power passenger car system |
| CN106965678A (en) * | 2017-04-07 | 2017-07-21 | 南京世博电控技术有限公司 | A kind of new energy vehicle management system based on entire car controller VMS |
| CN107600064A (en) * | 2016-07-12 | 2018-01-19 | 贵航青年莲花汽车有限公司 | A kind of high-low pressure energy management method of whole car controller of hybrid electric car |
| CN107681705A (en) * | 2016-08-01 | 2018-02-09 | 纳恩博（北京）科技有限公司 | A kind of charge control method and device to electric vehicle |
| WO2018214261A1 (en) * | 2017-05-25 | 2018-11-29 | 宁德时代新能源科技股份有限公司 | Processing method for low-charge condition, and processing device for low-charge condition |
| CN109586382A (en) * | 2018-12-03 | 2019-04-05 | 河南森源重工有限公司 | A kind of charger and its charging method |
| CN111430844A (en) * | 2020-03-05 | 2020-07-17 | 威睿电动汽车技术(宁波)有限公司 | Heat management method and device during battery pack charging and automobile |
| CN111584958A (en) * | 2020-05-14 | 2020-08-25 | 中国重汽集团济南动力有限公司 | Hybrid battery system for vehicle and control method |
| CN111923780A (en) * | 2020-07-06 | 2020-11-13 | 宝能(广州)汽车研究院有限公司 | Battery management method, battery system for vehicle and vehicle |
| CN112134342A (en) * | 2020-08-07 | 2020-12-25 | 华为技术有限公司 | Energy storage device, system and control method of energy storage device |
| CN112776605A (en) * | 2019-11-11 | 2021-05-11 | 奥特润株式会社 | Battery management system for comprehensively managing low-voltage and high-voltage batteries and communication method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105140579A (en) * | 2015-09-18 | 2015-12-09 | 苏州达力客自动化科技有限公司 | Charging management device for lithium ion battery |
| CN105978099A (en) * | 2016-06-29 | 2016-09-28 | 浙江合众新能源汽车有限公司 | Low-voltage power supply management system for electric car |
| CN106080239A (en) * | 2016-07-01 | 2016-11-09 | 北京新能源汽车股份有限公司 | The low tension battery charge control method of electric vehicle and electric vehicle |
| CN107600064A (en) * | 2016-07-12 | 2018-01-19 | 贵航青年莲花汽车有限公司 | A kind of high-low pressure energy management method of whole car controller of hybrid electric car |
| CN107681705B (en) * | 2016-08-01 | 2020-04-24 | 纳恩博（北京）科技有限公司 | Charging control method and device for electric vehicle |
| CN107681705A (en) * | 2016-08-01 | 2018-02-09 | 纳恩博（北京）科技有限公司 | A kind of charge control method and device to electric vehicle |
| CN106208270A (en) * | 2016-09-12 | 2016-12-07 | 厦门金龙旅行车有限公司 | The wireless charging system of a kind of electric motor car and control method thereof |
| CN106494234A (en) * | 2016-11-09 | 2017-03-15 | 简式国际汽车设计（北京）有限公司 | The protection system and method for the low tension battery under electric motor car power-down state |
| CN106849245A (en) * | 2017-02-28 | 2017-06-13 | 厦门理工学院 | A kind of intelligent charge control method of hybrid power passenger car system |
| CN106965678B (en) * | 2017-04-07 | 2019-03-15 | 南京世博电控技术有限公司 | A kind of new energy vehicle management system based on entire car controller VMS |
| CN106965678A (en) * | 2017-04-07 | 2017-07-21 | 南京世博电控技术有限公司 | A kind of new energy vehicle management system based on entire car controller VMS |
| WO2018214261A1 (en) * | 2017-05-25 | 2018-11-29 | 宁德时代新能源科技股份有限公司 | Processing method for low-charge condition, and processing device for low-charge condition |
| CN109586382A (en) * | 2018-12-03 | 2019-04-05 | 河南森源重工有限公司 | A kind of charger and its charging method |
| CN112776605A (en) * | 2019-11-11 | 2021-05-11 | 奥特润株式会社 | Battery management system for comprehensively managing low-voltage and high-voltage batteries and communication method |
| CN111430844A (en) * | 2020-03-05 | 2020-07-17 | 威睿电动汽车技术(宁波)有限公司 | Heat management method and device during battery pack charging and automobile |
| CN111430844B (en) * | 2020-03-05 | 2023-10-31 | 浙江吉利控股集团有限公司 | Thermal management method and device for battery pack charging and automobile |
| CN111584958A (en) * | 2020-05-14 | 2020-08-25 | 中国重汽集团济南动力有限公司 | Hybrid battery system for vehicle and control method |
| CN111923780A (en) * | 2020-07-06 | 2020-11-13 | 宝能(广州)汽车研究院有限公司 | Battery management method, battery system for vehicle and vehicle |
| CN112134342A (en) * | 2020-08-07 | 2020-12-25 | 华为技术有限公司 | Energy storage device, system and control method of energy storage device |
| CN112134342B (en) * | 2020-08-07 | 2022-12-06 | 华为数字能源技术有限公司 | Energy storage device, system and control method of energy storage device |
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