CN105270183B - The control device and control method of secondary cell - Google Patents

The control device and control method of secondary cell Download PDF

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Publication number
CN105270183B
CN105270183B CN201510659170.5A CN201510659170A CN105270183B CN 105270183 B CN105270183 B CN 105270183B CN 201510659170 A CN201510659170 A CN 201510659170A CN 105270183 B CN105270183 B CN 105270183B
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China
Prior art keywords
battery
diagnosis
secondary cell
age
value
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CN105270183A (en
Inventor
松本润
松本润一
海田启司
手塚卓睦
石下晃生
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Toyota Motor Corp
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Toyota Motor Corp
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Priority claimed from CN201080066787.1A external-priority patent/CN102893448B/en
Publication of CN105270183A publication Critical patent/CN105270183A/en
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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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04—Cutting off the power supply under fault conditions
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • 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
    • B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H02J7/0026—
    • H02J7/027—
    • 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
    • B60L2210/00—Converter types
    • B60L2210/40—DC to AC converters
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/423—Torque
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/80—Time limits
    • 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
    • B60L2250/00—Driver interactions
    • B60L2250/10—Driver interactions by alarm
    • 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
    • B60L2250/00—Driver interactions
    • B60L2250/16—Driver interactions by display
    • 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
    • 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
    • Y02T10/62—Hybrid vehicles
    • 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
    • Y02T10/72—Electric energy management in electromobility

Abstract

The present invention proposes the control device and control method of a kind of secondary cell, and control circuit includes calculating part, determination unit, display control unit, electric power limiting unit and starts prohibition unit.Each parameter calculated according to the main cause of the aging of lithium-ions battery (lithium precipitation) is converted into the battery age by calculating part respectively.When at least one of determination unit in each battery age has reached ceiling age, it is judged to needing Battery Diagnostic.Display control unit makes diagnosis require that message shows on the display apparatus and urges user to carry out Battery Diagnostic when being judged to needing Battery Diagnostic.Electric power limiting unit limits the charge-discharge electric power of battery when not receiving the result of Battery Diagnostic yet after diagnosis requires that the display of message starts.When starting prohibition unit does not receive the result of Battery Diagnostic yet after the limitation of the charge-discharge electric power of battery, forbid the starting of the drive system of vehicle.

Description

The control device and control method of secondary cell
The application is that on November 14th, 2012 is submitting, Application No. 201080066787.1, entitled " secondary The divisional application of the application of the control device and control method of battery ".
Technical field
The present invention relates to the control of the secondary cell for the diagnosis that ageing state can be carried out using diagnostic device.
Background technology
In recent years, the electric vehicle (hybrid electric vehicle, electric car etc.) for obtaining driving force using electric power widely causes note Mesh.Electric vehicle is generally configured with accumulating the secondary cell of the electric power of motor driving.Aging can occur for secondary cell, Failure occurs if being continuing with the state of aging.Therefore, in electric vehicle, the degree of the aging of secondary cell is held Situation it is most important.On the point, for example, disclosing one in Japanese Unexamined Patent Publication 2007-74891 publications (patent document 1) Plant the technology for estimating the life-span of battery according to the use resume of battery and being alerted user.
Citation
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2007-74891 publications
Patent document 2：Japanese Unexamined Patent Publication 2006-197765 publications
Patent document 3：Japanese Unexamined Patent Publication 2005-124353 publications
Patent document 4：Japanese Unexamined Patent Publication 2009-199936 publications
The content of the invention
Even if however, estimating the life-span of battery as described in Patent Document 1 and user being alerted, if after user The secondary cell of short life is continuing with, then secondary cell is it is possible that failure.
The present invention made to solve above-mentioned problem, its object is to avoid secondary cell in the state of aging after Continue the situation for using and breaking down.
The control device of the present invention is the control of the secondary cell for the diagnosis that ageing state can be carried out using diagnostic device Device.The control device possesses：Determination unit, the resume of the behaviour in service based on secondary cell determine a need for diagnosis；It is alert Announcement portion, when determination unit is judged to needing diagnosis, warning user receives diagnosis；And limiting unit, alert user in warning portion Receive in the case of not diagnosed yet by specified time limit after diagnosing, the output to secondary cell is limited.
Preferably, determination unit respectively determines a need for diagnosis for each parameter in multiple parameters, the multiple Parameter comprising secondary cell during use, the voltage of secondary cell exceed the accumulated value of time of a reference value, secondary cell At least appointing in the accumulated value of the accumulated value of the part for having exceeded setting in charging current and the discharge current of secondary cell 2 values.
Preferably, determination unit calculates the electricity of the degree for the aging for representing secondary cell for each parameter in multiple parameters At the pond age, it is judged to needing diagnosis when at least one of the multiple baitery ages calculated reaches ceiling age.
Preferably, control device is also equipped with changing battery year according to the result of diagnosis in the case where being diagnosed The changing unit in age.
Preferably, changing unit makes to have reached the upper limit year when the result of diagnosis represents to can continue to use secondary cell The baitery age in age is back to the regulation age lower than ceiling age.
Preferably, changing unit makes to have reached the upper limit year when the result of diagnosis represents to can continue to use secondary cell The baitery age in age is back to the regulation age, and other baitery ages of not up to ceiling age are also set into regulation year Age.
Preferably, changing unit is in the case where the result of diagnosis represents to can continue to use secondary cell, in multiple electricity When at least one at pond age is higher than the regulation age, multiple baitery ages are set as the regulation age, and in multiple baitery ages When being below the regulation age, without the change of multiple baitery ages.
Preferably, changing unit is when the result of diagnosis represents that secondary cell can not be continuing with, by multiple baitery ages It is set as ceiling age.Warning portion is when the result of diagnosis represents that secondary cell can not be continuing with, it is impossible to use secondary electricity This information of pond gives a warning to user.Limiting unit is forbidden when the result of diagnosis represents that secondary cell can not be continuing with The discharge and recharge of secondary cell.
Preferably, the higher limit of higher limit and discharged power that limiting unit performs the charging power for making secondary cell declines First control and forbid secondary cell discharge and recharge second control at least any one control, thus limit secondary cell Output.
Preferably, limiting unit determination unit be determined as need diagnose after do not diagnosed yet by first period when, Perform first to control, do not diagnosed yet by the second phase longer than first period after determination unit is judged to needing to diagnose When, perform second and control.
Preferably, control device is also equipped with：To the display device of user's display information；And control filling for secondary cell The power control unit of discharged power.Warning portion is by will urge the message diagnosed to include to alert making in display device User receives diagnosis.Limiting unit limits the output of secondary cell by controlling power control unit.
Preferably, determination unit determines a need for diagnosis based at least any one parameter in following parameter：It is secondary Battery during use, the voltage of secondary cell exceeded in the accumulated value of time of a reference value, the charging current of secondary cell The part for having exceeded setting accumulated value and secondary cell discharge current accumulated value.
The control method of another aspect of the present invention is can be using the secondary of the diagnosis of diagnostic device progress ageing state The control method that the control device of battery is carried out.The control method comprises the following steps：Behaviour in service based on secondary cell Resume come determine a need for diagnosis the step of；The step of warning user receives diagnosis when being judged to needing diagnosis；And In the case where not diagnosed yet by specified time limit after warning user receives diagnosis, the output to secondary cell is carried out The step of limitation.
Invention effect
In accordance with the invention it is possible to the situation of the diagnosis for the ageing state for needing secondary cell is given a warning to user and User is urged to carry out the diagnosis based on diagnostic device.Also, do not receive diagnosis yet after giving a warning and be continuing with secondary During battery, the use of (limit or forbid) secondary cell battery is limited.Therefore, it is possible to avoid secondary cell in the state of aging The situation for being continuing with and breaking down.
Brief description of the drawings
Fig. 1 is the block diagram for the schematic configuration for illustrating vehicle.
Fig. 2 is the figure for the structure for representing battery and monitoring unit.
Fig. 3 is the figure for the precipitation logic for representing the lithium metal in battery.
Fig. 4 is the figure for representing the relation between lithium amount of precipitation and the failure start temperature of battery.
Fig. 5 is the functional block diagram for controlling circuit.
Fig. 6 is the mapping for the relation for representing battery during use between Pb and battery age YP.
Fig. 7 is to represent that monomer battery voltage exceedes the figure of time Tv calculation method.
Fig. 8 is the mapping for representing the relation that monomer battery voltage exceedes between time Tv and battery age YV.
Fig. 9 is the figure for the calculation method for representing overcurrent aggregate-value SIin.
Figure 10 is the mapping for representing the relation between overcurrent aggregate-value SIin and battery age Yiin.
Figure 11 is the figure for the calculation method for representing discharge current aggregate-value SIout.
Figure 12 is the mapping for representing the relation between discharge current aggregate-value SIout and battery age Yiout.
Figure 13 is the figure for representing to determine a need for the method for Battery Diagnostic.
Figure 14 is the figure (its 1) for the update method for representing battery age Y.
Figure 15 is the figure (its 2) for the update method for representing battery age Y.
Figure 16 is the figure (its 3) for the update method for representing battery age Y.
Figure 17 is the flow chart (its 1) for representing to control the processing sequence of circuit.
Figure 18 is the flow chart (its 2) for representing to control the processing sequence of circuit.
Figure 19 is the figure of the flow of the action exemplified with the vehicle controlled by control circuit.
Embodiment
Hereinafter, referring to the drawings, embodiments of the invention are described in detail.It should be noted that it is following, for identical in figure Or considerable part marks same label and does not repeat its explanation in principle.
Fig. 1 is the schematic configuration of the vehicle 5 of the control device for the secondary cell that explanation has been applicable embodiments of the invention Block diagram.It should be noted that the vehicle 5 shown in Fig. 1 is motor vehicle driven by mixed power, but the present invention is not defined to hybrid electric vehicle , and can be applicable in whole electric vehicles.
Reference picture 1, vehicle 5 possesses battery 10, system main relay 22,24, power control unit (Power Control Unit, hereinafter referred to as " PCU ") 30, dynamotor 41,42, engine 50, power division mechanism 60, drive shaft 70 and wheel 80.
Battery 10 is the battery pack for being connected in series multiple lithium rechargeable battery units.Battery 10 can also It is configured to be charged using the power supply of the outside of vehicle 5.It should be noted that the present invention is not defined to lithium ion two Primary cell, and can be applied to require whole secondary cells of assurance ageing state.
The output kinetic energy using the burning capacity of fuel of engine 50.Power division mechanism 60 and dynamotor 41,42 And the output shaft of engine 50 links, and drive shaft 70 is driven using the output of dynamotor 42 and/or engine 50. Also, rotate wheel 80 by drive shaft 70.In this way, vehicle 5 is gone by the output of engine 50 and/or dynamotor 42 Sail.
Dynamotor 41,42 can also can both work as generator as motor, but dynamotor 41 Acted mainly as generator, dynamotor 42 is acted mainly as motor.
Specifically, dynamotor 41 accelerate when etc. require engine start when, as make engine 50 start Starter is used.Now, dynamotor 41 receives the power supply from battery 10 via PCU30 and entered as motor Row driving, makes engine start and start.In addition, after the starting of engine 50, dynamotor 41 is by via power point The engine output that cutting mill structure 60 is transmitted is rotated and can generated electricity.
Dynamotor 42 by accumulate in battery 10 electric power and dynamotor 41 generating electric power at least Either one drives.The driving force of dynamotor 42 is transmitted to drive shaft 70.Thus, dynamotor 42 enters to engine 50 Row aids in and travels vehicle 5, or only travels vehicle 5 by the driving force of itself.
In addition, in the regenerative braking of vehicle 5, dynamotor 42 utilizes situation about being driven by the revolving force of wheel And acted as generator.Now, the regenerated electric power generated electricity by dynamotor 42 fills via PCU30 to battery 10 Electricity.
PCU30 carries out the electrical power conversion of twocouese between battery 10 and dynamotor 41,42, and with electronic hair Motor 41,42 controls the electric power to turn in the way of respective action command value (representational is torque instruction value) is acted Change.For example, PCU30 includes the direct current power from battery 10 is converted into alternating electromotive force and applied to dynamotor 41,42 Plus inverter etc..The inverter also can by the regenerative electric power electrical power conversion of dynamotor 41,42 into direct current power and it is right Battery 10 is charged.
System main relay 22,24 is arranged between PCU30 and battery 10.System main relay 22,24 is according to relay Device control signal SE and be switched on cut-out.In cut-out (opening) of system main relay 22,24, the charge-discharge circuit of battery 10 Footpath is mechanically separated.
Vehicle 5 is also equipped with for the monitoring unit 20 for monitoring battery 10, control circuit 100 and display device 200.
Monitoring arrangement 20 is based on the temperature sensor 12, voltage sensor 14 and current sensor being arranged on battery 10 16 output, will represent that the value of the state of battery 10 is exported to control circuit 100.As described later, in monitoring unit 20 Zenith tracking mechanism is equipped with, on the output of Zenith tracking mechanism, is also exported to control circuit 100.
It should be noted that in Fig. 1, summing up represent temperature sensor 12 and voltage sensor 14 respectively.That is, it is actual On, temperature sensor 12 and voltage sensor 14 set multiple.Furthermore, it is also possible to set multiple current sensors 16.
Control circuit 100 is by being built-in with CPU (not shown) (Central Processing Unit) and memory electronics Control unit (ECU：Electronic Control Unit) constitute, based on the information being stored in the memory, perform regulation Calculation process.EEPROM (the Electrically Erasable of content can be rewritten to electrical resistance by being included in memory Programmable Read Only Memory：EEPROM).
Throttle operation amount, speed of the circuit 100 based on user are controlled, the torque set to dynamotor 41,42 will Evaluation.Circuit 100 is controlled dynamotor 41,42 is controlled in the way of the torque request value is acted by PCU30 The electrical power conversion of progress.Now, control circuit 100 is controlled to PCU30, so that the electric power charged to battery 10 is no more than Charging power higher limit Win, and so that the electric power discharged from battery 10 is no more than discharged power higher limit Wout.
It should be noted that engine 50 is controlled by another ECU (not shown).Moreover, in Fig. 1, circuit 100 will be controlled Record is used as single unit, but it is also possible to be divided into the different units of more than 2.
Display device 200 shows various message to user according to the control signal from control circuit 100 Show.The message of display on a display device 200 includes requiring that user receives the battery 10 that diagnostic device 300 described later is carried out Ageing state diagnosis (hereinafter referred to as " Battery Diagnostic ") situation message (hereinafter referred to as " diagnosis requires message ") and The message (hereinafter referred to as " message can not be used ") that this information of battery 10 will can not be used to be notified to user.
In addition, vehicle 5 is configured to be connected with diagnostic device 300.Hereinafter, illustrate that diagnostic device 300 is arranged in warp Sell the situation in the repairing factory that business etc. is set.It should be noted that diagnostic device 300 is not necessarily limited to be arranged on vehicle 5 Outside, diagnostic device 300 can also be arranged on to the inside of vehicle 5.Diagnostic device 300 is being arranged on to the inside of vehicle 5 When, as long as example making diagnostic device 300 carry out Battery Diagnostic according to the instruction of user under vehicle stop state.
When diagnostic device 300 is connected with vehicle 5, as can carry out diagnostic device 300 and control circuit 100 between Communication state.
Diagnostic device 300 is by the operation such as maintenance personal for being worked in repairing factory.Diagnostic device 300 is carried out and control electricity The communication on road 100 carries out above-mentioned Battery Diagnostic.In Battery Diagnostic, according to during the electric discharge of battery 10 voltage decline come Measure the lithium amount of precipitation of battery 10.Also, diagnostic device 300 is to diagnose battery 10 based on the lithium amount of precipitation measured " can continue to use ", it still " can not be continuing with " or be that " new product state " (is replaced by the state of new product or same with new product The state of sample).
Diagnostic device 300 sends signal R1 to control circuit 100 when diagnostic result is " can continue to use ", When diagnostic result is " can not be continuing with ", signal R2 is sent to control circuit 100, is " new product state " in diagnostic result When, signal R3 is sent to control circuit 100.
Fig. 2 is the figure for the structure for representing battery 10 and monitoring unit 20.
Battery 10 is made up of multiple battery blocks 11.Also, each battery block 11 is by N number of (N be more than 2 integer) battery list First 10# is connected in series and constituted.It should be noted that in fig. 2 exemplified with N=7 when structure.
Voltage sensor 14 sets multiple according to each battery block 11, to detect the output voltage of each battery block 11.
Monitoring unit 20 has：Corresponding to battery block 11 inside each battery unit 10# set multiple voltage ratios compared with Circuit 20a；The overvoltage detection circuit 20b being connected with each voltage comparator circuit 20a；And IG cut-out counters 20c.Fig. 2 is illustrated Voltage comparator circuit 20a and overvoltage detection circuit 20b set according to each battery block 11.It should be noted that overvoltage is examined Slowdown monitoring circuit 20b can also be arranged on the inside of control circuit 100.
Each voltage comparator circuit 20a is by corresponding battery unit 10# both end voltage (monomer battery voltage) respectively with using It is compared in the judgement voltage V1 (such as 4.05 volts) for judging overvoltage, exceedes in monomer battery voltage and judge voltage V1 When, signal S1 is exported to overvoltage detection circuit 20b.Similarly, each voltage comparator circuit 20a will distinguish corresponding monomer electricity Cell voltage, when monomer battery voltage exceedes judgement voltage V2, will be believed with judging that voltage V2 (such as 4.25 volts) is compared Number S2 is exported to overvoltage detection circuit 20b.
Overvoltage detection circuit 20b was incited somebody to action when receiving signal S1 from least one in each voltage comparator circuit 20a Voltage detection signal F1 is exported to control circuit 100.Similarly, overvoltage detection circuit 20b is from each voltage comparator circuit 20a In at least one when receiving signal S2, excess voltage detection signal F2 is exported to control circuit 100.
IG cuts off counter 20c to the switch of the starting/stopping of the drive system for indicating vehicle 5 (hereinafter referred to as " IG switches ") be cut off after by elapsed time (hereinafter referred to as " IG break times Tigoff ") counted and stored.Need It is noted that IG cuts off counter 20c to by least significant bit (LSB：Least Significant Bit) it is respectively formed as 3 kinds of IG break times Tigoff of 1 minute, 1 hour, 1 day are counted.Also, IG cuts off counter 20c and connect in IG switches When logical, the IG break times Tigoff of storage is exported to control circuit 100, and the IG break times Tigoff of storage is carried out Initialize (being formed as zero).
However, in lithium rechargeable battery as battery 10 is used for a long time, its it is internal can precipitating metal lithium and can It can break down.
Fig. 3 is the figure for the precipitation logic for representing the lithium metal in battery 10.As shown in figure 3, continuous when battery 10 Charging, the skidding of the on/off of throttle, wheel 80/grab etc. when occurring, each monomer battery voltage of battery 10, which exceedes, to be sentenced Determine voltage, or charged more than the electric current of feasible value to battery 10.This state turns into main cause, in the inside of battery 10 Precipitating metal lithium.
Fig. 4 is the figure for representing the relation between lithium amount of precipitation and the failure start temperature of battery 10.As shown in figure 4, lithium Amount of precipitation more increases, and the failure start temperature of battery 10 more declines.That is, lithium amount of precipitation more increases, and battery 10 breaks down Possibility it is higher.When battery 10 breaks down, it is impossible to dynamotor 41,42 supply electric powers, essentially become not Can traveling.
In order to avoid this situation, preferably regularly receive accurate by the Battery Diagnostic that above-mentioned diagnostic device 300 is carried out Lithium precipitation state really is held, battery 10 is replaced by new product as needed.
Therefore, the control circuit 100 of the present embodiment estimates lithium amount of precipitation based on the resume of the behaviour in service of battery 10, When the lithium amount of precipitation deduced has reached upper limit amount, the warning for needing this information of Battery Diagnostic is sent to user and is urged User carries out Battery Diagnostic.Then, in the case where not carrying out Battery Diagnostic yet by specified time limit, control circuit 100 is limited Make the use of (limit or forbid) battery 10.
Fig. 5 is the functional block diagram with the part of Battery Diagnostic associated for controlling circuit 100.It should be noted that Fig. 5 institutes Each functional block shown can both be realized using hardware (electronic circuit etc.), can also utilize software processing (execution of program etc.) To realize.
Circuit 100 is controlled to include calculating part 110, storage part 120, determination unit 130, display control unit 140, electric power limiting unit 150 and start prohibition unit 160.In addition, control circuit 100 includes acceptance division 170 and update section 180.
Calculating part 110 calculates " battery age Y " based on the resume of the behaviour in service of battery 10.The battery age Whether Y makes in the judgement for needing Battery Diagnostic equivalent to the presumed value of the degree of the aging of battery 10, i.e. lithium amount of precipitation With.
Calculating part 110 calculates 4 kinds of battery age Y according to the main cause that lithium is separated out.4 kinds of battery age Y difference Calculated by the first calculating part 111, the second calculating part 112, the 3rd calculating part 113, the 4th calculating part 114.
First, the first calculating part 111 is illustrated.First calculating part 111 is according to above-mentioned IG break times Tigoff And the elapsed time (hereinafter referred to as " IG turn-on times Tigon ") passed through when being connected from IG, calculate battery 10 during use (hereinafter referred to as " battery during use Pb ") and be stored in storage part 120, and Pb is converted into during use by the battery calculated Battery age Y.Hereinafter, by battery, Pb is converted into the value that battery age Y obtains and calls " the battery age during use YP”。
First calculating part 111 reads battery Pb during use from storage part 120, the battery of reading is made when IG is connected The IG break times Tigoff received from monitoring unit 20 is added with period Pb (with reference to following formula (1)).
Pb=Pb+Tigoff ... (1)
First calculating part 111 is counted after IG connections to IG turn-on times Tigon, with specified period from storage part 120 read battery Pb during use, and Pb adds IG turn-on times Tigon (with reference to following formula during use by the battery of reading (2))。
Pb=Pb+Tigon ... (2)
When the first calculating part 111 calculates battery Pb during use, the battery validity period that will be stored in storage part 120 Between Pb be updated to newest value.
Fig. 6 is the mapping for the relation for representing battery during use between Pb and battery age YP.First calculating part 111 makes With the mapping shown in Fig. 6, by battery, Pb is converted into battery age YP during use.Also, the first calculating part 111 is by battery Age YP is exported to determination unit 130.
Next, returning to Fig. 5, illustrate the second calculating part 112.Second calculating part 112 is calculated from the mistake of monitoring unit 20 (hereinafter referred to as " cell is electric for the value that the accumulated time that voltage detection signal F1 reception exceeds schedule time and continued is obtained Pressure exceedes time Tv ") and be stored in storage part 120, and the monomer battery voltage calculated is converted into electric power storage more than time Tv Pond age Y.Hereinafter, monomer battery voltage will be exceeded time Tv and is converted into the value that battery age Y obtains and call " battery year Age YV ".
Fig. 7 is to represent that monomer battery voltage exceedes the figure of time Tv calculation method.The separated limit of voltage is produced in moment t1 (to connect Receive excess voltage detection signal F1), when t2 at the time of have passed through the stipulated time and voltage are disobeyed limit and continued to, the second calculating part 112 determine that voltages disobey limit and read monomer battery voltage from storage part 120 and exceed time Tv, and by the monomer battery voltage of reading Start the counting that monomer battery voltage exceedes time Tv as initial value more than time Tv.T3 at the time of after, works as voltage When separated limit is released from and (no longer receives excess voltage detection signal F1), when the second calculating part 112 stopping monomer battery voltage exceeding Between Tv counting, monomer battery voltage is stored in storage part 120 more than time Tv.Then, electricity occurs again in moment t4 Pressure disobeys limit and voltage is determined in moment t5 and disobeys in limited time, and the second calculating part 112 reads monomer battery voltage from storage part 120 and exceeded Time Tv, and its value is started into the counting that monomer battery voltage exceedes time Tv as initial value.T6 electricity at the time of after Pressure disobeys limit when being released from, and the second calculating part 112 stops the counting that monomer battery voltage exceedes time Tv, and by monomer battery voltage It is stored in more than time Tv in storage part 120.It should be noted that in the example shown in Fig. 7, the t2 that limit is determined is disobeyed in voltage During~t3, t5~t6, the suppression of overcharge is realized by limiting charging power higher limit Win (close to 0).
Fig. 8 is the mapping for representing the relation that monomer battery voltage exceedes between time Tv and battery age YV.Second meter Monomer battery voltage is converted into battery age YV by calculation portion 112 using the mapping shown in Fig. 8 more than time Tv.Also, second Calculating part 112 exports battery age YV to determination unit 130.It should be noted that for excess voltage detection signal F2, also may be used To carry out the processing same with excess voltage detection signal F1.
Next, returning to Fig. 5, illustrate the 3rd calculating part 113.3rd calculating part 113 is calculated more than for suppressing lithium analysis The input limits value Ilim that goes out and the current value that is charged to battery 10 add up resulting value, and (hereinafter referred to as " overcurrent adds up Value SIin ") and storage part 120 is stored in, and the overcurrent aggregate-value SIin calculated is converted into battery age Y.Hereinafter, will Overcurrent aggregate-value SIin is converted into the value obtained by battery age Y and calls " battery age YIin ".
Fig. 9 is the figure for the calculation method for representing overcurrent aggregate-value SIin.The electric power storage during from moment t13 to moment t14 When pond charging current Iin exceedes input limits value Ilim, the 3rd calculating part 113 is calculated during from moment t13 to moment t14 The current value (=Ilin-Iin) charged more than input limits value Ilim to battery 10 adds up resulting value Δ SIin (phases When the area of the oblique line portion in Fig. 8).Also, the 3rd calculating part 113, which reads the overcurrent being stored in storage part 120, to be added up Value SIin, calculates the value obtained by the overcurrent aggregate-value SIin of reading is added into the aggregate-value Δ SIin calculated and is used as new mistake Electric current aggregate-value SIin (with reference to following formula (3)).
SIin=SIin+ Δs SIin ... (3)
When the 3rd calculating part 113 calculates overcurrent aggregate-value SIin, the overcurrent that will be stored in storage part 120 is tired out Evaluation SIin is updated to newest value.It should be noted that in the example shown in Fig. 9, in moment t12 battery charging current Iin exceedes input desired value Itag time point, and the suppression of overcharge is realized by starting to charge up upper power limit value Win limitation System.
Figure 10 is the mapping for representing the relation between overcurrent aggregate-value SIin and battery age Yiin.3rd calculating part Overcurrent aggregate-value SIin, using the mapping shown in Figure 10, is converted into battery age YIin by 113.
Next, returning to Fig. 5, illustrate the 4th calculating part 114.4th calculating part 114 is calculated the electric discharge electricity of battery 10 Value obtained from stream Iout is accumulative (hereinafter referred to as " discharge current aggregate-value SIout ") and be stored in storage part 120, and will The discharge current aggregate-value SIout calculated is converted into battery age Y.Hereinafter, discharge current aggregate-value SIout will be converted into Value obtained by battery age Y is referred to as " battery age YIout ".
Figure 11 is the figure for the calculation method for representing discharge current aggregate-value SIout.As shown in figure 11, in discharge current Iout During more than biased error I0, calculate the current value (=Iout-I0) discharged more than biased error I0 from battery 10 is accumulative Resulting value Δ SIout (area of the oblique line portion equivalent to Figure 11).Also, the 4th calculating part 114 reads and is stored in Discharge current aggregate-value SIout in storage portion 120, calculates that the discharge current aggregate-value SIout of reading is accumulative plus what is calculated Value obtained by value Δ SIout is used as new discharge current aggregate-value SIout (with reference to following formula (4)).
SIout=SIout+ Δs SIout ... (4)
When the 4th calculating part 114 calculates discharge current aggregate-value SIout, the electric discharge that will be stored in storage part 120 Electric current aggregate-value SIout is updated to newest value.
Figure 12 is the mapping for representing the relation between discharge current aggregate-value SIout and battery age Yiout.4th meter Discharge current aggregate-value SIout is converted into battery age YIout by calculation portion 114 using the mapping shown in Figure 12.
It should be noted that each battery age YP, YT, YIin, YIout are also exported to update section 180 described later.
In this way, the resume of behaviour in service of the calculating part 110 based on battery 10, calculate battery Pb, monomer electricity during use Cell voltage exceedes time Tv, overcurrent aggregate-value SIin, discharge current aggregate-value SIout each parameter, and each parameter is distinguished It is converted into battery age YP, YT, YIin, YIout.
It should be noted that the species for the parameter that calculating part 110 is calculated be not defined to above-mentioned Pb, Tv, SIin, SIout.Moreover, the number for the parameter that calculating part 110 is calculated is not defined to above-mentioned Pb, Tv, SIin, SIout this 4.Example Such as, from the viewpoint of processing load reduction, the number of parameter can also be only set to battery Pb this 1 during use.But, From the viewpoint of whether further raising needs the judgement precision of Battery Diagnostic, preferably use including above-mentioned Pb, Tv, The multiple parameters of at least wantonly 2 in SIin, SIout.
Fig. 5 is returned to, in storage part 120, as described above, Pb, monomer battery voltage exceed during use by battery Time Tv, overcurrent aggregate-value SIin, discharge current aggregate-value SIout each parameter are updated to progress in the state of newest value Storage.
It should be noted that when control circuit 100 is replaced by into new product, the information of each parameter disappears.It is therefore preferable that will Each parameter also is stored in the control device different from control circuit 100 (such as the ECU for controlling engine 50) memory, is kept away Exempt from that 2 ECU are carried out to change simultaneously.
Determination unit 130 judges whether battery age Y reaches respectively according to each battery age YP, YT, YIin, YIout Predetermined ceiling age, based on the judged result, determines a need for Battery Diagnostic.The ceiling age is tried relative to utilization The limit lifespan obtained such as test, it is considered to the margin of error and the value that is set as low several years.It should be noted that it is following, with the upper limit Age is that " 20 years " are illustrated.
When at least one of determination unit 130 in battery age YP, YT, YIin, YIout has reached 20 years, it is judged to needing Battery Diagnostic is wanted, when being not the case, is judged to not needing Battery Diagnostic.
Figure 13 is the figure for representing to determine a need for the method for Battery Diagnostic.As shown in figure 13, each battery age YP, In YT, YIin, YIout, when the battery age, YT reached 20 years, determination unit 130 has reached 20 years in battery age YT Time point is judged to needing Battery Diagnostic.
Return Fig. 5, determination unit 130 by result of determination to display control unit 140, electric power limiting unit 150, start prohibition unit 160 outputs.
Above-mentioned diagnosis is required that message includes filling in display by display control unit 140 when being judged to needing Battery Diagnostic Put on 200.Thus, user can hold the situation of Battery Diagnostic period arrival.
Electric power limiting unit 150 is passed through (being judged to needing the time point of Battery Diagnostic) requiring the display of message since diagnosis Spent first period and from acceptance division 170 described later do not receive diagnostic result yet when, to charging power higher limit Win and electric discharge Upper power limit value Wout is limited (following, the limitation is referred to as " Win/Wout limitations ").Thus, filling for battery 10 is limited Electric power and discharged power, therefore, it is possible to the progress for the aging for delaying battery 10.The process of electric power limiting unit 150 over time And gradually increase the limit amount that Win/Wout limitations are produced.It should be noted that it is following, carried out using first period as " 1 month " Explanation.
Start prohibition unit 160 and than 1 month (first period) length is have passed through requiring the display of message since diagnosis The second phase and from acceptance division 170 described later do not receive diagnostic result yet when, forbid the starting of the drive system of vehicle 5.By This, vehicle 5 can not be travelled, and the use of battery 10 is substantially prohibited.It should be noted that it is following, using the second phase as " 2 Individual month " illustrate.
When acceptance division 170 brings vehicle 5 into repairing factory in user and receives Battery Diagnostic, receive and carry out self-diagnosis system 300 diagnostic result (in above-mentioned signal R1~R3 any one).Acceptance division 170 is by the diagnostic result received to update section 180th, display control unit 140, electric power limiting unit 150, starting prohibition unit 160 are exported.
Update section 180 is according to the result of the Battery Diagnostic received via acceptance division 170, and what storage part 120 was recorded is each (Pb, monomer battery voltage exceed time Tv, overcurrent aggregate-value SIin, discharge current aggregate-value to battery to parameter during use SIout) it is updated.
First, update method when diagnostic result is " can continue to use " is illustrated.In this case, update section 180 exists In 4 battery age Y that calculating part 110 is calculated, (examined when there is the battery age Y of 20 years for having reached ceiling age When after the disconnected display for requiring message), the regulation age for making battery age Y returns lower than 20 years, and not up to 20 years The battery age, Y was also set to the regulation age.It should be noted that it is following, to provide that the age illustrates as " 15 years ".
Figure 14 is represented when diagnosis requires that the display of message is followed by being diagnosed as " can continue to use " by Battery Diagnostic Battery age Y update method figure.In the example shown in Figure 14, update section 180 makes to reach the battery year of 20 years Age YT is refunded 5 years and turned into 15 years, and not up to 20 years other battery age YP, YIin, YIout are also updated to 15 Year.That is, update section 180 is calculated using the mapping of above-mentioned Fig. 6,8,10,12 respectively when being converted into each battery age Y The value of suitable each parameter with 15 years, and each parameter for being stored in storage part 120 is updated using each value calculated.Pass through Such to update, after diagnosis, the initial value at each battery age Y turns into 15 years.That is, first diagnosis requires message in process Shown at 20 years, but when being continuing with battery 10, second of later diagnosis is required that message was often shown by 5 years, urge User is diagnosed in advance.
On the other hand, updated when being not reaching to the battery age Y of 20 years (when before the display that diagnosis requires message) Portion 180 makes each electric power storage in the presence of the battery age Y before will reaching 20 years (before will showing that diagnosis requires message) Pond age Y is returned 15 years, when not being such situation, and each battery age Y is not updated and is maintained as former state.Need explanation It is below, to be illustrated by 15 years ages less than 20 years of the battery age Y before will reaching 20 years.
Figure 15,16 are represented when receiving diagnosis before diagnosis requires the display of message is diagnosed as " can continue to use " The figure of battery age Y update method.In this case, update section 180 first determines whether 15 years less than the storage of 20 years Baitery age Y whether there is.
In the presence of 15 years battery age Y less than 20 years, update section 180 makes more than 15 years as shown in figure 15 And the battery age Y less than 20 years is returned 15 years, other battery ages Y are also updated to 15 years.Thus, examining next time It is disconnected to require that message is shown in the time point that 5 years are have passed through after diagnosis.Therefore, it is possible to avoid diagnosis from requiring that message is just diagnosing it Situation about just showing afterwards.
On the other hand, when being respectively less than 15 years at each battery age Y, update section 180 as shown in figure 16, each electric power storage is not updated Pond age Y and maintain as former state.Therefore, it is to avoid the feelings for requiring message by display diagnosis before 20 years during use of battery 10 Condition.
Next, update method when explanation diagnostic result is " can not be continuing with ".In this case, update section 180 Each battery age Y is all updated to 20 years of ceiling age.That is, update section 180 when being converted into each battery age Y, The value of each parameter suitable with 20 years is calculated using the mapping of above-mentioned Fig. 6,8,10,12 respectively, and utilizes each value calculated Each parameter for being stored in storage part 120 is updated.Updated by this, after " can not be continuing with " is diagnosed as, respectively Battery age Y turns into 20 years of ceiling age.Also, as described later, display can not use message.
Next, update method when explanation diagnostic result is " new product state ".In this case, update section 180 will be each Battery age Y is all initialized as 0 year.That is, each parameter initialization that update section 180 will be stored in storage part 120 is 0.
In this way, update section 180 is updated according to the result of Battery Diagnostic to each parameter for being recorded in storage part 120.
Fig. 5 is returned to, display control unit 140 is when diagnostic result is " can not be continuing with ", if requiring message in diagnosis In display, then do not show that diagnosis requires message, and message can not be used to show on a display device 200.On the other hand, show Control unit 140 is when diagnostic result is " can continue to use " or " new product state ", if display diagnosis requires message or can not During using message, then these message are not shown.
Electric power limiting unit 150 is when diagnostic result is " can continue to use " or " new product state ", if Win/Wout is limited Win/Wout limitations are then released during system.
Prohibition unit 160 is started when diagnostic result is " can not be continuing with ", forbids the starting of the drive system of vehicle 5. On the other hand, display control unit 140 is when diagnostic result is " can continue to use " or " new product state ", if in drive system The starting for forbidding period then to release drive system is started to forbid.
Figure 17 is that being mainly used in the function of represent above-mentioned control circuit 100 is realized and the processing phase before Battery Diagnostic The flow chart of the processing sequence of the function of pass.It should be noted that each step of flow chart as shown below is (below, by step Referred to as " S ") realized basically by the software processing of the control progress of circuit 100, but it is also possible to by being arranged at control electricity The hardware handles of the progress such as the electronic circuit on road 100 are realized.
In S10, control circuit 100 judges whether to receive Battery Diagnostic result (signal R1~R3 from diagnostic device 300 In any one).When not receiving Battery Diagnostic result (S10 is no), processing enters S11.Receiving Battery Diagnostic knot During fruit (S10 is yes), the processing terminates.
In S11, control circuit 100 is as described above, the resume of the behaviour in service based on battery 10, calculate battery and use Period Pb, monomer battery voltage exceed time Tv, overcurrent aggregate-value SIin, discharge current aggregate-value SIout each parameter, and Each parameter is converted into battery age YP, YT, YIin, YIout respectively.It should be noted that being stored in memory (storage part 120) each parameter (Pb, Tv, SIin, SIout) is updated to newest value.
In S12, control circuit 100 judges whether that at least one in each battery age YP, YT, YIin, YIout reaches To 20 years (ceiling age).
When all battery age Y are not up to 20 years (S12 is no), control circuit 100 makes to examine in S13, not It is disconnected to require that message is shown on a display device 200.
On the other hand, when at least any one battery age Y reaches 20 years (S12 is yes), control circuit 100 is in S14 In, diagnosis is required that message is shown on a display device 200.
In S15, control circuit 100 judged whether since diagnosis requires the display of message by 2 months (second phases Between).
When have passed through 2 months requiring the display of message since diagnosis (S15 is yes), control circuit 100 is in S18 In, forbid the starting of the drive system of vehicle 5.
On the other hand, when requiring the display of message since diagnosis without 2 months (S15 is no), circuit is controlled 100 in S16, judges whether since diagnosis requires the display of message by 1 month (first period).
When requiring the display of message since diagnosis by 1 month (S16 is yes), circuit 100 is controlled in S17, Carry out Win/Wout limitations.(S16 is no), the processing knot when requiring the display of message since diagnosis without 1 month Beam.
Figure 18 is that being mainly used in the function of represent above-mentioned control circuit 100 is realized and the processing phase after Battery Diagnostic The flow chart of the processing sequence of the function of pass.
In S20, control circuit 100 judges whether to receive Battery Diagnostic result (signal R1~R3 from diagnostic device 300 In any one).When not receiving Battery Diagnostic result (S20 is no), the processing terminates.Receiving Battery Diagnostic result When (S20 is yes), processing enters S21.
In S21, control circuit 100 judges whether diagnostic result is that " can continue to use " (connects from diagnostic device 300 Receive signal R1).When diagnostic result is " can continue to use " (S21 is yes), processing enters S22.If not such case (S21 is no), then processing enters S28.
In S22, control circuit 100 determines whether to diagnose before the display for requiring message.Message is being required for diagnosis When before display (S22 is yes), processing enters S23.When being required for diagnosis after the display of message (S22 is no), processing enters S25。
In S23, control circuit 100 judges whether each battery age Y is respectively less than 15 years.It is equal at each battery age Y During less than 15 years (S23 is yes), processing enters S24.When at least one at each battery age Y is more than 15 years, (S23 is It is no), processing enters S25.
In S24, control circuit 100 is not updated to each parameter for being stored in memory and maintained as former state.
In S25, circuit 100 is controlled so that each battery age Y turns into the mode at 15 years (regulation age) to being stored in Each parameter of memory is updated.
In S26, control circuit 100 makes to be shown in the message of display device 200, and (diagnosis requires message or can not used to disappear Breath) it is non-display.
In S27, circuit 100 is controlled by export-restriction (Win/Wout limitations or the starting of drive system of battery 10 Forbid) release.
In S28, control circuit 100 judges whether diagnostic result is that " can not be continuing with " (connects from diagnostic device 300 Receive signal R2).It is not " can not be continuing with " but when " new product state " (S28 is no) in diagnostic result, processing enters S29.When diagnostic result is " can not be continuing with " (S28 is yes), processing enters S30.
In S29, control circuit 100 is in the way of each battery age Y is turned into 0 year to being stored in each ginseng of memory Number is initialized.Then, processing enters S26, S27, and the message for making to be shown in display device 200 is non-display, and releases storage The export-restriction of battery 10.
In S30, circuit 100 is controlled so that each battery age Y turns into the mode of 20 years (ceiling age) to being stored in Each parameter of memory is updated.Then, control circuit 100 makes the diagnosis for being shown in display device 200 in S31, S32 It is required that message is non-display and makes message can not be used to show.In addition, control circuit 100 forbids the drivetrain of vehicle 5 in S33 The starting of system.
Figure 19 is the figure of the flow of the action exemplified with the vehicle 5 controlled by control circuit 100.
First, the action of the vehicle before Battery Diagnostic 5 is illustrated.Before Battery Diagnostic, any in each battery age Y The individual time point for reaching 20 years, starts to diagnose the display (moment t21) for requiring message.Thus, user can hold battery and examine The situation that disconnected period arrives.
When not diagnosed yet by 1 month requiring the display of message since diagnosis, start Win/Wout limitations (moment t22).Thus, the charging power and discharged power of limitation battery 10, therefore, it is possible to delay the aging of battery 10 Progress.
When not diagnosed yet by 2 months requiring the display of message since diagnosis, forbid the drivetrain of vehicle 5 The starting (moment t23) of system.Thus, the use of battery 10 is substantially prohibited, and can suppress state of the battery 10 in aging The lower situation for continuing to be used.
Next, explanation observes that diagnosis requires that the user of message brings vehicle 5 into repairing factory and receives battery and examine The action of vehicle 5 when disconnected.
When diagnostic result is " can not be continuing with ", forbid the starting of drive system.Receive the diagnostic result, by electric power storage When pond 10 is replaced by new product, the message for making to be shown in display device 200 is non-display, and the starting of drive system is forbidden also being solved Remove.
When diagnostic result is " can continue to use ", each parameter is updated in the way of each battery age Y turns into 15 years. Thus, even if battery 10 is not replaced by into new product, the message for also making to be shown in display device 200 is non-display, and is released Win/Wout is limited or the starting of drive system is forbidden.Moreover, next time later diagnosis requires that message was showing after 5 years Show, compared with first 20 years, user can be urged to carry out Battery Diagnostic in advance.
As described above, calculated according to the control circuit 100 of the present embodiment, the resume of the behaviour in service based on battery 10 When the battery age Y (value suitable with the presumed value of lithium amount of precipitation) gone out has reached ceiling age, display diagnosis requires message And urge user to carry out Battery Diagnostic.Then, when not diagnosed yet by specified time limit, limitation (limit or forbid) stores The use of battery 10.Therefore, it is possible to avoid the situation that battery 10 is continuing with and broken down in the state of aging.
The whole points for being considered as embodiment of disclosure are to illustrate and be not restricted content.The model of the present invention Enclosing is not by above-mentioned explanation but is disclosed by the scope of claims, and is intended to include impartial with the scope of claims The meaning and scope in whole changes.
Label declaration
5 vehicles, 10 batteries, 10# battery units, 11 battery blocks, 12 temperature sensors, 14 voltage sensors, 16 current sensors, 20 monitoring units, 20a voltage comparator circuits, 20b overvoltage detection circuits, 20c cut-out counters, 22nd, 24 system main relay, 41,42 dynamotor, 50 engines, 60 power division mechanisms, 70 drive shafts, 80 cars Wheel, 100 control circuits, 110 calculating parts, 111 first calculating parts, 112 second calculating parts, 113 the 3rd calculating parts, 114 4th calculating part, 120 storage parts, 130 determination units, 140 display control units, 150 electric power limiting units, 160 startings are forbidden Portion, 170 acceptance divisions, 180 update section, 200 display devices, 300 diagnostic devices.

Claims (4)

1. a kind of control device of secondary cell, being can be using the secondary of the diagnosis of diagnostic device (300) progress ageing state The control device of battery (10), the control device of the secondary cell is characterised by possessing：
Determination unit (130), the diagnosis is determined a need for based on the resume of the behaviour in service of the secondary cell；
Warning portion (140), when the determination unit is judged to needing the diagnosis, warning user receives the diagnosis；And
Limiting unit (150,160), receives by specified time limit yet not entering after the diagnosis in warning portion warning user In the case of the row diagnosis, the output to the secondary cell is limited,
The determination unit respectively determines a need for the diagnosis, the multiple parameter bag for each parameter in multiple parameters Include the use time of the secondary cell, the voltage of the secondary cell exceed a reference value time accumulated value, described secondary The accumulated value of the accumulated value of the part for having exceeded setting in the charging current of battery and the discharge current of the secondary cell In it is at least wantonly 2 value,
The determination unit calculates the electricity of the degree for the aging for representing the secondary cell for each parameter in the multiple parameter At the pond age, it is judged to needing the diagnosis when at least one of the multiple baitery ages calculated reaches ceiling age,
The control device is also equipped with changing the electricity according to the result of the diagnosis in the case where having carried out the diagnosis The changing unit (180) at pond age,
The changing unit is when the result of the diagnosis represents that the secondary cell can not be continuing with, by multiple batteries year Age is set as the ceiling age,
The warning portion is when the result of the diagnosis represents that the secondary cell can not be continuing with, it is impossible to use described two This information of primary cell gives a warning to user,
The limiting unit (160) forbids described two when the result of the diagnosis represents that the secondary cell can not be continuing with The discharge and recharge of primary cell.
2. the control device of secondary cell according to claim 1, it is characterised in that
The control device is also equipped with：
To the display device (200) of user's display information；And
The power control unit (30) of the electric power of the charging/discharging of secondary cell is controlled,
The warning portion is by will urge the message for carrying out the diagnosis to include connecing to alert user in the display device By the diagnosis,
The limiting unit limits the output of the secondary cell by controlling the power control unit.
3. the control device of secondary cell according to claim 1, it is characterised in that
The determination unit determines a need for the diagnosis based at least any one parameter in following parameter：The secondary electricity The use time in pond, the voltage of the secondary cell have exceeded the accumulated value of the time of a reference value, the charging of the secondary cell The accumulated value of the accumulated value of the part for having exceeded setting in electric current and the discharge current of the secondary cell.
4. a kind of control method of secondary cell, being can be using the secondary of the diagnosis of diagnostic device (300) progress ageing state The control method that the control device (100) of battery (10) is carried out, the control method of the secondary cell is characterised by, including Following steps：
The step of resume of behaviour in service based on the secondary cell are to determine a need for the diagnosis；
The step of user receives the diagnosis is alerted when being judged to needing the diagnosis；And
In the case where not carrying out the diagnosis yet by specified time limit after warning user receives the diagnosis, to described two The step of output of primary cell is limited,
It is described respectively to determine a need for institute for each parameter in multiple parameters the step of determine a need for the diagnosis Diagnosis is stated, the multiple parameter includes the use time of the secondary cell, the voltage of the secondary cell exceedes a reference value The accumulated value of the part for having exceeded setting in the accumulated value of time, the charging current of the secondary cell and described secondary At least wantonly 2 values in the accumulated value of the discharge current of battery,
It is described that to calculate expression for each parameter in the multiple parameter the step of determine a need for the diagnosis described secondary The baitery age of the degree of the aging of battery, when at least one of the multiple baitery ages calculated reaches ceiling age It is judged to needing the diagnosis,
The control method, which is additionally included in, have been carried out changing the electricity according to the result of the diagnosis in the case of the diagnosis The step of pond age,
It is described change the baitery age the step of when the result of the diagnosis represents that the secondary cell can not be continuing with, Multiple baitery ages are set as the ceiling age,
The step of warning user receives the diagnosis represents to be continuing with described secondary in the result of the diagnosis During battery, it is impossible to which using the secondary cell, this information gives a warning to user,
The step of output to the secondary cell is limited in the result of the diagnosis represents that institute can not be continuing with When stating secondary cell, forbid the discharge and recharge of the secondary cell.
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