CN101639522B - Equipment for diagnosing degradable state of secondary battery - Google Patents
Equipment for diagnosing degradable state of secondary battery Download PDFInfo
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- CN101639522B CN101639522B CN200810145014.7A CN200810145014A CN101639522B CN 101639522 B CN101639522 B CN 101639522B CN 200810145014 A CN200810145014 A CN 200810145014A CN 101639522 B CN101639522 B CN 101639522B
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Abstract
The invention provides equipment for diagnosing degradable state of a secondary battery, which can carry out accurate evaluation on the degradable state of the secondary battery on the state of being mounted in movable body from the aspect of practical ability of the secondary battery. In the equipment for diagnosing degradable state of the secondary battery for diagnosing the degradable state of the secondary battery RB, the secondary battery RB is mounted on the movable body which adopts an engine for starting and a motor for starting the engine and provides power for the motor which is used for starting the engine, minimum voltage detection operation is performed and minimum voltage value is studied after beginning to use the secondary battery RB, the gradable state of the secondary battery RB can be diagnosed according to the lowering degree between the detected minimum voltage and an original minimum voltage value, the detecting operation of the minimum voltage in the starting operation of the engine is carried out after comparing the time for the voltage to be maximum after the motor for starting the engine is electrified in the progress of the time variation which takes the detecting operation of the minimum as output voltage of the secondary battery RB.
Description
Technical field
The present invention relates to a kind of equipment for diagnosing degradable state of secondary cell, this device possesses: detect the voltage detection unit of the output voltage of secondary cell, this secondary cell is arranged on the moving body of being piloted engine with motor by engine start and to above-mentioned engine start motor and powers; With according to the diagnostic process portion of the deterioration state of the above-mentioned secondary cell of detection information diagnosis of this voltage detection unit.
Background technology
The equipment for diagnosing degradable state of the secondary cell relating to is, for example, according to the detection information of the output voltage of secondary cell, the device that the deterioration state of the secondary cell to lead accumulator of installing on the moving bodys such as automobile etc. is diagnosed.
Time as the output voltage to secondary cell changes the method for monitoring and the deterioration state of secondary cell is evaluated, and in the past, for example, has the method described in following patent literature 1.
In following patent literature 1, record, the minimal value of the open circuit voltage (OCV) according to starting before starting motor and the lower voltage of the moment of starting starting motor poor, the technology that the deterioration state of secondary cell (excide battery) is inferred.
In following patent literature 1, by adopting such evaluation method, except depending on the information of the vehicle that secondary cell is installed, only extract the information of the deterioration state that represents secondary cell.
Patent documentation 1: TOHKEMY 2005-292035 communique
But, in above-mentioned existing formation, although can carry out purely the evaluation of the deterioration state of secondary cell, but, in the time wondering that this secondary cell is being arranged on the practical ability that keeps much degree under the state on moving body, also need the processing for being transformed to this information, this can cause processing load to increase and follow the reduction of the accuracy of detection of processing load increase.
Summary of the invention
The present invention produces in view of the actual conditions that relate to, and its object is, can be from the angle of the practical ability of this secondary cell, and accurate evaluation is arranged on the deterioration state of the secondary cell of the state on moving body.
The application's the 1st invention is a kind of equipment for diagnosing degradable state of secondary cell, possess: voltage detection unit, it detects the output voltage of secondary cell, and this secondary cell is arranged in the moving body of being piloted engine with motor by engine start and to above-mentioned engine start motor and powers; with diagnostic process portion, it is according to the detection information of this voltage detection unit, diagnose the deterioration state of above-mentioned secondary cell, above-mentioned diagnostic process portion forms in the following manner: in above-mentioned secondary cell is arranged on to above-mentioned moving body and after starting to utilize above-mentioned secondary cell, first carry out minimum voltage and detect action, and be initial minimum voltage value by detected the detected minimum voltage of action by this minimum voltage or remain in storage unit with the evaluation value storage that this initial minimum voltage value has a relation of regulation, above-mentioned minimum voltage detects action for following actions, the ratio voltage regulation after above-mentioned engine start motor being started switch on during the time of detecting the voltage being detected by above-mentioned voltage detection unit changes once becomes the above-mentioned minimum voltage in the motor starting action of great moment after more, and after above-mentioned initial minimum voltage value or above-mentioned evaluation are remained on to said memory cells with value storage, according to the decline degree apart from above-mentioned initial minimum voltage value of carrying out the detected above-mentioned minimum voltage of above-mentioned minimum voltage detection action, diagnose the deterioration state of above-mentioned secondary voltage.
,, owing to changing the deterioration state of secondary cell is diagnosed according to the time of the output voltage of the secondary cell in engine start operation, still, what in the time of output voltage changes, pay close attention to is the minimum voltage in engine start operation.
But, by starting the starting action of engine the reduction of the voltage that mobile dash current produces after motor for engine start (starter) starts energising, owing to can not saying the voltage drop producing because of the rotary load of engine start motor, so ignore.
The output voltage of the secondary cell in engine start operation represents to change as the time of pattern ground signal in Fig. 6 (a).
At time A, if start the starting action of engine, voltage just sharply reduces, and voltage is pulsed afterwards.
If described with the example of reciprocating engine, this pulsation results from, and be associated, and the mechanical load that engine start is applied with motor produces variation with the variation of the resistance to compression pression producing due to the piston movement in cylinder etc.
In Fig. 6 (a), minimal point be for the first time position B again during mains ripple backward in, it is the minimal point of position C that magnitude of voltage becomes minimum point.
In other words, on the C of position, start with applying maximum load on motor, the maximum load when voltage table of this position C is shown in engine start operation can maintain great output voltage while applying, if which type of degree is the electric power supply capacity when maximum load while in other words, being illustrated in engine start operation applies be.
By the way, although it is most typical change in voltage that the 2nd group of minimal point (position C) of Fig. 6 (a) becomes the change in voltage of minimum voltage, but for example, as shown in Fig. 6 (b), the situation that becomes minimum voltage on the minimal point after the 3rd group also exists.
Therefore, for the detection of the minimum voltage in engine start operation, be, to detect after engine start motor energising is started voltage regulation once to become the minimum voltage in motor starting action backward again of great time.
Above-mentioned minimum voltage detects the electric power supply capacity that detects the secondary cell in the time that engine start operate in action, and the minimizing degree of the electric power supply capacity of secondary cell when resting in engine start and operating is used as the deterioration state of secondary cell.
As the essential information for grasping such deterioration state, secondary cell is installed on moving body and after starting to utilize secondary cell, is first carried out above-mentioned minimum voltage and detect action, and store as it is and remain in storage unit as initial minimum voltage value detect the detected minimum voltage of action by this minimum voltage, or, generate with initial minimum voltage value and there is the evaluation value of certain relation and be stored in storage unit.
Then, in the diagnosis of the deterioration state of the secondary cell after this, in the time of each diagnosis, carry out above-mentioned minimum voltage and detect action, according to the deterioration state of the diagnosis of the reduction degree apart from the above-mentioned initial minimum voltage value secondary cell of the above-mentioned minimum voltage that obtained thus.
; be that initial minimum voltage value is as maximum scale (full scale) using start initial detected above-mentioned minimum voltage in the utilization of secondary cell; considering under the state of the load that is arranged on the moving body on moving body, the reduction of the electric power supply capacity due to the deteriorated secondary cell causing is being evaluated.
In addition, the application's the 2nd invention, except the formation of above-mentioned the 1st invention, above-mentioned diagnostic process portion forms in the following manner, the minimum voltage of following period during the time of detecting the voltage being detected by above-mentioned voltage detection unit changes, be used as above-mentioned minimum voltage and detect action, during this period for above-mentioned engine start being started with motor after energising, once become from voltage regulation that the great moment starts till during reverting to above-mentioned engine start motor being started to the moment of the voltage energising.
, above-mentioned minimum voltage detects in action, during object as the monitoring voltage of the minimum voltage for detection of in engine start operation, the variation of the output voltage of the secondary cell in engine start operation, because the changing pattern shown in Fig. 6 (a) is typical, although likely the voltage of the minimal point of the 2nd group after engine start operation starts detects as minimum voltage, but, because the terminal during the object of monitoring voltage is as engine start and become to return to engine start motor is started to the moment of voltage before energising, even if thereby do not have the such changing pattern of Fig. 6 (b) of large possibility occurrence in the case of representing, also can accurately detect minimum voltage.
In addition, the application's the 3rd invention, except the formation of above-mentioned the 1st and the 2nd invention, above-mentioned diagnostic process portion forms in the following manner, in the time of the voltage being detected by above-mentioned voltage detection unit changes, being accompanied by becomes energising to the reducing amount of the voltage in setting-up time and starts to judge that the lower voltage more than setting value of use detects, be judged as the energising of above-mentioned engine start motor is started, and be constituted as according to the diagnostic result of the deterioration state of above-mentioned secondary cell above-mentioned energising is started to judge that the setting value of use sets change.
Above-mentioned diagnostic process portion, in order to identify the i.e. energising zero hour to engine start motor of the zero hour of engine start operation, the switching manipulation that for example can indicate energising to start by detection is identified, if but can detect according to the variation of the output voltage that adopts the above-mentioned voltage detection unit secondary cell that detect, so can not need to for detection of wiring etc. seek the simplification forming.
As detect the concrete grammar that engine start motor is started to energising according to the variation of the output voltage of secondary cell, can be clear and definite according to the change in voltage shown in Fig. 6, also can detect engine start operation and start lower voltage sharply afterwards.
But, adopt in the situation of this detection method, in lower voltage how many times in setting-up time, regarding as engine start motor is started to energising existing problems.
Although also also fixing from engine start is started to be energized to lower voltage amount till minimal point for the first time with motor, but, the reducing amount of this voltage changes according to the deteriorated degree of carrying out of secondary cell, and the deteriorated degree of carrying out is larger, and the reducing amount of voltage is larger.
Simply, if only consider the variation of such lower voltage amount,, according to not carry out at secondary cell the mode that the lower voltage amount under deteriorated state can detect exactly, set and be judged as the criterion that starts starting action with little lower voltage amount.
But, if it is deteriorated that secondary cell carries out, even in the case of other smaller electrical works of the current sinking beyond making engine start motor, the lower voltage being produced by this electric loading become greater to certain degree, therefore be judged as above with the reducing amount of little voltage and start in the situation of engine start operation, may error detection start for engine start operation using when other electrical equipment.
Therefore, following becomes energising to the lower voltage amount in setting-up time and starts to judge that lower voltage more than the setting reducing amount of use detects, as being judged as the mode that engine start motor is started to energising, according to the diagnostic result of the deterioration state of up-to-date as far as possible secondary cell, above-mentioned energising is started to judge that the setting reducing amount of use sets change.
Certainly, larger according to the degradation of secondary cell, above-mentioned energising starts to judge that the larger mode of setting value of use is set change.
In addition, the application's the 4th invention, except any formation of above-mentioned the 1st～the 3rd invention, above-mentioned diagnostic process portion forms in the following manner, the voltage ratio undercharge that detected by above-mentioned voltage detection unit detects the set threshold voltage of use when low, being judged as above-mentioned secondary cell is undercharge, and is constituted as the set threshold voltage that above-mentioned undercharge is detected to use according to the diagnostic result of the deterioration state of above-mentioned secondary cell and sets change.
,, although detect the output voltage of secondary cell and whether undercharge judges to secondary cell, whether the deterioration state of also considering secondary cell differentiates undercharge.
Fig. 2 (a), it on transverse axis, is the charged state (charge level) of secondary cell, on the longitudinal axis, be starting characteristic (electric power supply capacity when engine start), represent the characteristic of both sides relation represents how to change according to the deteriorated of secondary cell.
From Fig. 2 (a), deteriorated the carrying out of secondary cell (direction of dotted arrow D in Fig. 2 (a)) degree is larger, and electric power supply capacity more early reduces with respect to the reduction of charged state.
If seen conversely, even if the deteriorated of secondary cell carried out with certain degree, if charged state is enough high, electric power supply capacity is also high to certain degree.
Such relation is reflected to secondary cell whether in the differentiation of undercharge, and sets according to the diagnostic result of the deterioration state of up-to-date as far as possible secondary cell the set threshold voltage that changes undercharge and detect use.
Certainly, larger according to the deteriorated degree of carrying out of secondary cell, above-mentioned undercharge detects the higher mode of set threshold voltage of use and sets.
In addition, the application's the 5th invention, except each formation of above-mentioned the 1st～the 4th invention, possesses: the detection of end of travelling unit, and its engine stop to above-mentioned moving body detects; And reporting unit, it is accompanied by the above-mentioned detection of end unit that travels the engine stop of above-mentioned moving body is detected, the diagnostic result of the deterioration state of the above-mentioned secondary cell that report is undertaken by above-mentioned diagnostic process portion.
; carry out if the diagnostic process portion of diagnosis of secondary cell deterioration state and the structure that the control device of moving body is connected in the mode that can communicate by letter; also consider the diagnostic result of diagnostic process portion to send to moving body one side; the structure showing in moving body one side; but this kind of device; be arranged on secondary cell independently respectively with the control device of moving body, and situation about arranging on the inaccessible position of user of the medium moving body of for example engine room is more.
In such situation, in the travelling of moving body, even the diagnostic device of installing on secondary cell report diagnostic result, but also may have the situation that the user of moving body can not full confirmation.
So, making after travelling of moving body stop engine stop detecting, the diagnostic result of the deterioration state of report secondary cell.
If according to above-mentioned the 1st invention, the above-mentioned minimum voltage that the utilization of secondary cell is started to detect the most at the beginning is that initial minimum voltage value is as maximum scale, on moving body, install and considered under the state of load of moving body, reduction to the electric power supply capacity by deteriorated caused secondary cell is evaluated, thereby can evaluate exactly from the angle of the practical ability of this secondary cell the deterioration state of the secondary cell that is arranged on the state moving body.
In addition, if according to above-mentioned the 2nd invention, even in the time of engine start operation, the output voltage of secondary cell changes according to diversified changing pattern, also the minimum voltage can be to engine start operation time detects exactly, carries out the diagnosis of the deterioration state that precision is good.
In addition, according to above-mentioned the 3rd invention, in situation about starting according to the detection information detection engine start operation of the output voltage of secondary cell, owing to surveying under the state the deterioration state of secondary cell is also taken in, therefore can detect exactly the beginning of the starting action of engine.
In addition, according to above-mentioned the 4th invention, owing to also considering that whether the deterioration state of secondary cell differentiate undercharge, therefore, can carry out the evaluation of more practical charged state.
In addition, according to above-mentioned the 5th invention, from engine stop, the diagnostic result of the deterioration state of report secondary cell, thus can report exactly to the user of moving body.
Accompanying drawing explanation
Fig. 1 relates to the square pie graph of embodiment of the present invention.
Fig. 2 is the figure that the setting of the threshold value for detection of undercharge to relating to embodiment of the present invention describes.
Fig. 3 is the figure that the setting of the threshold value for detection of undercharge to relating to embodiment of the present invention describes.
The figure of the change in voltage of secondary cell when Fig. 4 is signal engine start.
Fig. 5 is the figure that signal basis relates to the variation of the deteriorated minimum voltage of embodiment of the present invention.
The mode chart of the change in voltage of secondary cell when Fig. 6 is signal engine start.
Fig. 7 relates to the process flow diagram of embodiment of the present invention.
Fig. 8 relates to the process flow diagram of embodiment of the present invention.
Fig. 9 relates to the process flow diagram of embodiment of the present invention.
Figure 10 relates to the process flow diagram of embodiment of the present invention.
Figure 11 relates to the process flow diagram of embodiment of the present invention.
Figure 12 relates to the process flow diagram of embodiment of the present invention.
Figure 13 relates to the process flow diagram of embodiment of the present invention.
Figure 14 relates to the process flow diagram of embodiment of the present invention.
Figure 15 relates to the process flow diagram of embodiment of the present invention.
Figure 16 relates to the process flow diagram of embodiment of the present invention.
Figure 17 relates to the process flow diagram of embodiment of the present invention.
[symbol description]
AL reporting unit
MM storage unit
RB secondary cell
The SS detection of end parts that travel
VC diagnostic process portion
VS voltage detection unit
Embodiment
The embodiment of secondary cell equipment for diagnosing degradable state of the present invention is described below, with reference to the accompanying drawings.
In present embodiment, as secondary cell RB, 1 example that illustrates moving body is the lead accumulator 4 of installing on automobile.
Lead accumulator 4, whether the motor for engine start (piloting engine) to the engine start for making automobile also provides electric power, can be provided and can be driven reliably the electric power that becomes the engine start of heavy load motor to become important by lead accumulator 4.
The equipment for diagnosing degradable state of the secondary cell of present embodiment, as shown in Fig. 1 calcspar, possesses: temperature sensor 1; Liquid level sensor 2; Batch (-type) switch (tact switch, タ Network ト ス ィ ッ チ) 3; The microprocessor 5 that the deterioration state of lead accumulator 4 is diagnosed; Light emitting diode 6a, the 6b of green, orange and red three kinds of colors, 6c; Hummer (buzzet) 7; Control and drive the hummer control circuit 8 of hummer 7, remove each parts outside liquid level sensor 2 by unit and be installed on lead accumulator 4.
Light emitting diode 6a, 6b, 6c and hummer 7 play a role as the reporting unit AL of the diagnostic result of the deterioration state of report lead accumulator 4.
For the voltage that microprocessor 5 is worked, supplied with by lead accumulator 4.
In the microprocessor 5 of Fig. 1, " the engine start correspondence " that dotted line frame surrounds, " undercharge diagnosis ", " liquid level diagnosis ", " pattern conversion ", " detection of end of travelling " and " condition diagnosing " are corresponding with the various processes in the process flow diagram of the Fig. 7 being carried out by microprocessor 5 respectively, represent the function of being carried out by software with calcspar.
Follow from batch (-type) switch 3 indicate input processing, microprocessor 5 starts the processing shown in Fig. 7.
Follow the processing of Fig. 7 to start, after the initial setting stipulating (step #1), transfer to the action for the diagnosis of deterioration state.
In Fig. 7, for simplicity, although record in a mode for the processing of repeating step # 2～step # 8, but in fact using a series of processing of step # 2～step # 8 as one group, repeatedly carry out at high speed each group according to some cycles (in present embodiment, illustrating as " 10mSec ").
Below, the processing of each step of description of step # 2～step # 8 successively.
[being taken into data]
First, adopt the A/D converter arranging on microprocessor 5 to read the output voltage (terminal voltage) of lead accumulator 4, and also obtain the detection information (step #2) of temperature sensor 1 and liquid level sensor 2.Therefore, according to some cycles, the output voltage of lead accumulator 4 is taken into microprocessor 5.
Therefore, microprocessor 5 has the function as the voltage detection unit VS of the output voltage of detection lead accumulator 4 concurrently, and the function of the VC of diagnostic process portion of the deterioration state of conduct diagnosis lead accumulator 4.
[liquid level diagnosis]
Then,, according to step # 3 " liquid level diagnosis ", evaluate for the situation of the battery fluid of lead accumulator 4.
The processing of the subroutine that the concrete contents processing of this step # 3 " liquid level diagnosis " represents as Fig. 8 process flow diagram " liquid level diagnostic process ".
Input detection information from liquid level sensor 2 to microprocessor 5 for " liquid level diagnosis ", but, as the formation of liquid level sensor 2, if for example the liquid measure of battery fluid is enough just immersed in battery fluid, just do not immerse in the unit that electrode bar such in battery fluid is inserted into lead accumulator 4 if the liquid measure of battery fluid is not enough, if the liquid measure of battery fluid is enough, voltage between this electrode bar and a lead-out terminal (negative terminal) becomes " H " level, if the liquid measure of battery fluid is inadequate, voltage between this electrode bar and a lead-out terminal (negative terminal) is just " L " level.
In Fig. 8 " liquid level diagnostic process ", in order to make the whether enough judgements of battery fluid stable, possesses the counter that is called " diagnosis refresh counter ", even if the detection voltage of liquid level sensor 2 changes from " L " to " H " from " H " to " L " or conversely, the count value that increases once " counter is changed in diagnosis " of counting if follow this state variation in 10mSec does not reach sets number (in present embodiment, 30 seconds points), not update mark is the value of " liquid level mark (flag) " (in Fig. 8, being marked as " liquid level F ").
Be somebody's turn to do " liquid level mark ", employing makes the enough or inadequate state of battery fluid store the mark keeping, to representing that battery fluid is that any one in the data that are called " enough " of the remaining situation of appropriate amount and the data that are called " decline " of expression battery fluid inadequate situation stored maintenance.The storage data of being somebody's turn to do " liquid level mark " are also utilized in the processing of step # 6 described later.
For example, the value of " liquid level mark " is in the state (step #21) of " enough ", when the detection voltage of liquid level sensor 2 becomes " L " (step #22), for the first time the value of " liquid level mark " is rewritten as to " decline " by step #23 (step #24) 3000 times.
Conversely, the value of " liquid level mark " becomes in the state (step #21) of " decline ", when the detection voltage of liquid level sensor 2 becomes " H " (step #27), for the first time the value of " liquid level mark " is rewritten as to " enough " by step #28 (step #29) 3000 times.
[undercharge diagnosis]
Then,, in step # 4 " undercharge diagnosis ", evaluate for the charged state of lead accumulator 4.
The concrete contents processing of this step # 4 " undercharge diagnosis " is the processing as the subroutine of " undercharge diagnostic process " expression of the process flow diagram of Fig. 9.
In the processing of Fig. 9, first, the output voltage of the lead accumulator 4 of obtaining is carried out to filtering and process and smoothing, try to achieve " vf " voltage (step #41) as evaluation object.
Then, set the threshold value (undercharge detects the set threshold voltage of use) (step #42) for judging whether undercharge.
This threshold value is set according to the diagnostic result of the deterioration state of up-to-date lead accumulator 4.
Particularly, in present embodiment, the deterioration state of lead accumulator 4 is divided into 3 stages, in Fig. 2 (a), the border of this division is: the state that there is no deteriorated new product of curve E; Curve G for the practical deteriorated state proceeding to till preferred degree; And the deteriorated state of certain degree of carrying out of setting between curve E and curve G.
Be divided into 3 stages: the deteriorated few stage between curve E and curve F; Deteriorated carrying out sizable stage between curve F and curve G; With further carry out the deteriorated stage than curve G.
In the present invention, evaluate the deterioration state of lead accumulator 4 according to motor starting characteristic, detailed in the process flow diagram of Figure 13 described later " starting characteristic diagnostic process ", be called the diagnostic result of the value representation deterioration state of the mark of " start identification " (in Figure 13, being marked as " starting F ").
; the value of " start identification " is (High) the deteriorated few stage between curve E and curve F for " Hi "; the value of " start identification " is (Middle) deteriorated the carrying out sizable stage between curve F and curve G for " Mid ", and the value of " start identification " is (Low) further to carry out the deteriorated stage than curve G for " Lo ".
Carry out as above under the state of stage distribution, the starting characteristic of the rank representing in order to ensure the middle use of Fig. 2 (a) " J " is (if in other words, the supply capacity of electric power), Fig. 2 (b) represents in each deteriorated stage, to guarantee the relation of how many charged states.
Therefore, the value of " start identification " in this moment is if " Hi ", the voltage suitable with the charged state of the position P of Fig. 2 (b) is set as to above-mentioned threshold value, if the value of " start identification " is " Mid ", the voltage suitable with the charged state of the position Q of Fig. 2 (b) is set as to above-mentioned threshold value, if the value of " start identification " is " Lo ", the voltage suitable with the charged state of the position R of Fig. 2 (b) is set as to above-mentioned threshold value.If the relation using these as charged state and between starting characteristic represents, become the relation representing in Fig. 3.
Set (step #42) if undercharge is detected to the set threshold voltage of use according to above mode, more above-mentioned " vf " and this undercharge detect the threshold value (step #43) of use.
This is relatively time, because " vf " depends on the temperature of lead accumulator 4, therefore in order whether to evaluate undercharge under certain condition, and according to the detection information of temperature sensor 1, " vf " is maked corrections.
Particularly, for example, for enough approaching situations of deterioration state, collect in advance the data that represent the relation between the internal drag of lead accumulator 4 and the detection information of temperature sensor 1, according to reference temperature and actual temperature between the difference of the corresponding internal drag of deviation " vf " maked corrections.Also can use the data of the voltage difference between " vf " described later and " vc3 " to replace the internal drag of this lead accumulator 4.
Here, the set threshold voltage that " vf " detects use than undercharge is low, be not judged as immediately undercharge, when " vf " becomes lower than the set threshold voltage of undercharge detection use, be arranged on the once counter that is called " counter is judged in charging " of (step #45) of increase counting in 10mSec, the count value of this counter reach 30 seconds point (step #44) and for the first time by the mark that keeps the value of undercharge whether value of " charging mark " (in Fig. 9, being marked as " charging F ") be updated to " deficiency " (step #47).
In addition, " charging mark ", to representing " deficiency " of undercharge and representing that any value of " enough " that be not undercharge stores maintenance.
For this, become the state of " deficiency " from the value of " charging mark ", when exceeding undercharge by charging " vf " and detect the set threshold voltage of use (step #43), the value that does not make immediately " charging mark " is " enough ", the value adding again after 0.6V by " vf " with in the set threshold voltage of undercharge detection use compares (step #49), in the time that " vf " exceedes this value, the value of " charging mark " is updated to " enough " (step #50).
Here maintain hysteresis characteristic in order to prevent vibration (チ ャ タ リ Application グ).
[engine start correspondence]
Then,, in step # 5 " engine start correspondence ", the deterioration state that is lead accumulator 4 for the starting characteristic of engine is evaluated.
The concrete contents processing of this step # 5 " engine start correspondence " has, the subroutine representing as " the engine start alignment processing " of the process flow diagram of Figure 10 and Figure 11, with and the subroutine of subsidiary Figure 12 " study of initial start characteristic is processed " and Figure 13 to Figure 15 " starting characteristic diagnostic process ".
When user carries out engine start operation, the output voltage of the lead accumulator 4 of inputting to microprocessor 5, such time of presentation graphs 4 illustrated changes.This Fig. 4 accurately represents the voltage waveform of Fig. 6.
Identical with for Fig. 6 explanation, if start the starting action of engine at moment A, start to motor for engine start (piloting engine) (omitting diagram) energising, above-mentioned output voltage sharply reduces, and this voltage is pulsed afterwards.Further, afterwards, if near the state of engine in not relying on engine start and rotating with motor (engine start state: in Fig. 4 moment T), voltage rises significantly.
In " engine start alignment processing ", identifying engine start operation greatly according to the later lower voltage of the moment A of Fig. 4 starts, according to the mark that is called " starting distinguishing mark " (in Figure 10 etc., being marked as " starting identification F ") to after the tracking situation of change in voltage manage.
Should " starting distinguishing mark " any in following mark be stored to maintenance, represent " 0 " of the state that does not carry out the tracking of change in voltage, represent " 1 " detecting large lower voltage and start the state of change in voltage tracking, represent " 2 " of the state of the minimal point for the first time that identifies Fig. 4 position B, represent " 3 " of the state of the maximal point for the first time that identifies Fig. 4 position S, with " 4 " of state that represent the 2nd secondary minimum point that identifies Fig. 4 position C, the carrying out of following the tracks of according to change in voltage, with " 0 ", " 1 ", " 2 ", " 3 ", " 4 " change successively.
Below, describe according to Figure 10 etc.
First, when the value of " starting distinguishing mark " is " 0 " (step #61), detect voltage and be 13.2V when following engine be that the value of the state that do not start and " charging mark " is not while becoming " deficiency " (step #62), poor (Δ V) with the detection voltage of last time detected, be setting-up time (10mSec) if in the reducing amount of voltage start to judge lower voltage (step #63) more than the setting value of use to becoming energising, be judged as and start to switch on to engine start motor, along with the counting of indication " starting time counter " starts (step #64), the value of " starting distinguishing mark " is updated to " 1 " (step #65).
Above-mentioned energising starts to judge the setting value of use, do not set regularly, the up-to-date diagnostic result of the deterioration state to lead accumulator 4 switches according to the value of " start identification " that keep with " Hi ", " Mid ", " Lo " 3 values, be accompanied by deteriorated the carrying out from " Hi " to " Lo ", set in the mode that becomes large value.
And above-mentioned " starting time counter ", adopts and be used for the timing timer in the elapsed time from start energising to engine start motor, after timing starts, every process 10mSec counting increases.
In addition, in the detection voltage of the Fig. 4 output voltage of lead accumulator 4 being detected by A/D converter, from time A, to being reduced to during the position B of minimal point for the first time, Multiple through then out should " engine start alignment processing ".
According to such processing, be through with while starting the identification to engine start motor energising, from this " engine start alignment processing ", to " battery status diagnosis " transfer of next time.
The value of " starting distinguishing mark " becomes under the state of " 1 ", if enter " engine start alignment processing " (step #66), just the magnitude of voltage (vc1) of minimal point (position B) is for the first time detected to (step #67).
In order to detect this minimal value, store continuous multiple detection magnitudes of voltage, the increase and decrease that detects magnitude of voltage according to these obtains minimizing voltage.
While finding minimal value " vc1 " by this processing (step #68), the value of " starting distinguishing mark " is updated to " 2 " (step #69).
The value of " starting distinguishing mark " becomes under the state of " 2 ", if enter " engine start alignment processing " (step #70), detect the magnitude of voltage (vc2) (step #71) of maximal point (position S) for the first time.The detection of this maximum value, identical with the detection of " vc1 ", pre-stored continuous multiple detection magnitudes of voltage, the increase and decrease that detects magnitude of voltage according to these obtains minimizing voltage.
While finding maximum value " vc2 " by this processing (step #72), the value of " starting distinguishing mark " is updated to " 3 " (step #73).
The value of " starting distinguishing mark " becomes under the state of " 3 ", if enter " engine start alignment processing " (step #74), to start to engine start voltage regulation after motor energising once become the great time (position S) also the minimum voltage (vc3) in engine start operation backward collect (step #75).
Because this minimum voltage (vc3) occurs at the minimal point (position C) of the 2nd group conventionally, therefore here, the voltage of the minimal point of the 2nd group (position C) is detected.This minimizing detection is also carried out in the same manner with the detection of " vc1 " etc.
While finding " vc3 " by this processing (step #76), the value of " starting distinguishing mark " is updated to " 4 " (step #77).
The value of " starting distinguishing mark " becomes under the state of " 4 ", if enter " engine start alignment processing " (step #74), detect voltage ratio pilot engine the open circuit voltage (OCV: with reference to figure 4) of starting before motor less during (the step # 78 of Figure 11), till the clocking value of " starting time timer " that starts accumulative total timing in step # 64 becomes the clocking value suitable with the process of stipulated time, carry out the collection (step #83) of " vc3 ".By by the collection of " vc3 " here with " vc3 " that detect in step # 75 relatively, find simply minimum magnitude of voltage.
In addition, deteriorated according to carrying out at lead accumulator 4, engine fail to start, the mode of " vc3 " of also can collecting the voltage before energising starts in the case of not turning back to is carried out, and therefore the regulation afore mentioned rules time is 5 seconds here.
If the value of " starting distinguishing mark " is for " 4 " and detect more than voltage rises to closed loop voltage (OCV), or, the clocking value (timing time) of " starting time timer " exceedes 5 seconds (step #78), and the value of " starting distinguishing mark " and " starting time timer " turns back to " 0 " (step #79).
According to like this, finish for the collection of minimum voltage " vc3 " of the starting characteristic diagnosis of carrying out engine.In addition, the minimum voltage of collection " vc3 ", carries out and the identical temperature correction illustrating in the step # 43 of Fig. 9.
According to above processing, carry out minimum voltage and detect action, this minimum voltage detects motion detection starting once to become to voltage regulation after the energising of engine start motor the also minimum voltage in engine start operation backward of great moment (position S), but more specifically, detect action as this minimum voltage, detect the minimum voltage of the following period in the time of the voltage that adopts voltage detection unit VS to detect changes, to starting from starting once to become the great moment to engine start voltage regulation motor energising the minimum voltage starting during till the moment of the voltage (OCV) before the energising of engine start motor to returning to.
If the collection of minimum voltage " vc3 " finishes, whether the study of the initial start characteristic for deterioration state diagnosis is finished to confirm (step #80).
In present embodiment, the study of initial start characteristic, because use is multiple (particularly, 2) be applicable to the data of the above-mentioned minimum voltage " vc3 " of initial start characteristic study, whether the counter that therefore basis is counted this data number i.e. value of " data number counter " described later becomes " 2 ", can confirm whether the study of initial start characteristic finishes.
When the study of initial start characteristic does not finish, carry out step # 81 " study of initial start characteristic ".
The concrete processing of step # 81 " study of initial start characteristic " is, the subroutine of expression in Figure 12 " study of initial start characteristic is processed ".
In the processing of Figure 12, first, prestart voltage " Vp " (being equivalent to OCV), meet the condition of 12.6V < Vp < 13.2V, and confirm whether there be (step #91) in the charge level that is applicable to the study of initial start characteristic, if satisfied condition, " data number counter " only counting increases by 1 (step #92), to storing preservation (step #93) with above-mentioned such minimum voltage of collecting " vc3 ".
Afterwards, because the value of " data number counter " is " 2 ", while obtaining the data of 2 minimum voltages " vc3 " (step #94), carry out the study (step #95) of starting characteristic.
The data of 2 minimum voltages " vc3 " can start to utilize the above-mentioned minimum voltage detection action of carrying out the most at the beginning of lead accumulator 4 to obtain according to lead accumulator 4 is installed on automobile.
The minimum voltage " vc3 " using in study is the mean value of the data of 2 minimum voltages " vc3 ", below, the minimum voltage using in this study " vc3 " is called to initial minimum voltage value.
Illustrate the content of this study processing according to Fig. 5.
Fig. 5 represents that above-mentioned minimum voltage detects the minimum voltage " vc3 " detecting in action and carries out which type of variation according to the lifespan order of lead accumulator 4.In Fig. 5, illustrate the situation that above-mentioned initial minimum voltage value (lifespan order is " vc3 " of 0 o'clock) is 10.5V.
In the longitudinal axis of Fig. 5 as " vc1 " represent voltage be the minimum voltage " vc3 " of the bottom line necessity in order to make engine start, in present embodiment as 6.5V.This voltage, although according to how many differences that exist such as the vehicles of automobile, can think substantially identical value.
Further, setting voltage " vcm " between above-mentioned initial minimum voltage value and " vc1 ".
Be somebody's turn to do " vcm " conduct according to setting ratio by the value of dividing between above-mentioned initial minimum voltage value and " vc1 ".In present embodiment, between above-mentioned initial minimum voltage value and " vc1 " using 3:1 divide voltage as " vcm ".This splitting ratio considers that user's the various situations of utilizing mode etc. set.
The study of initial start characteristic, in fact by above-mentioned initial minimum voltage value and with this initial minimum voltage value have regulation relation evaluation value " vcm " be in nonvolatile memory 5a, to store maintenance at storage unit MM.In addition, the value of " vc1 " is stored maintenance in advance by fixed value " 6.5V " on nonvolatile memory 5a.
In the step # 80 of Figure 11, while being judged as study end, utilize the result of this study, carry out " starting characteristic diagnosis ", i.e. the diagnosis of the deterioration state of lead accumulator 4 (step #82).
The concrete processing of step # 82 " starting characteristic diagnosis " is the processing of the subroutine that in Figure 13 to Figure 15, conduct " starting characteristic diagnostic process " represents.
In present embodiment, be 3 stages of " Hi (High) ", " Mid (Middle) ", " Lo (Low) " by the diagnostic evaluation of above-mentioned such starting characteristic, detect according to above-mentioned minimum voltage the minimum voltage " vc3 " that motion detection goes out, less than " vc1 " time, be " Lo ", while being positioned between " vcm " and " vc1 ", be " Mid ", when " vcm " is above, be " Hi ".
Therefore, the diagnosis of the deterioration state of lead accumulator 4, diagnoses apart from the reduction degree of above-mentioned initial minimum voltage value as the minimum voltage detecting from carrying out above-mentioned minimum voltage to detect action.
But, in Figure 13 to Figure 15 in " starting characteristic diagnostic process ", not according to adopting above-mentioned minimum voltage to detect any one in 3 stages that minimum voltage " vc3 " that motion detection goes out is categorized as " Hi ", " Mid ", " Lo " immediately, but while detecting according to above-mentioned minimum voltage minimum voltage " vc3 " that motion detection goes out for the data that are other stages from any phase change, if such detection voltage does not have 2 times continuously in principle, do not make diagnostic result change, thereby suppress the useless variation of diagnostic result.
For this reason, " start identification " is set (in Figure 13 etc., be marked as " starting F ") as keeping " Hi ", " Mid ", the mark of any value (diagnostic result) of 3 values of " Lo ", keep the data of the diagnostic result to the deterioration state in each moment, and arrange deterioration state is counted to (step #110 to the variation that improves side, " U counter " #121) and deterioration state is counted to (step #103 to the variation of deteriorated side, " D counter " #115), (step #104 when value at above-mentioned counter becomes " 2 ", #111, #116, #122) the variation of permission diagnostic result.
Further, in Figure 13 to Figure 15 in " starting characteristic diagnostic process ", do not occur to change or reverse like this jump changes from the jump of " Hi " to " Lo " of " start identification ", must pass through " Mid ".
[battery status diagnosis]
Then,, in step # 6 " battery status diagnosis ", carry out the comprehensive evaluation of battery status.
The concrete contents processing of this step # 6 " battery status diagnosis " is the processing as the subroutine of " battery status diagnostic process " expression of the process flow diagram of Figure 16.
In Figure 16 " battery status diagnostic process ", synthetically judge the state of battery according to following part, the diagnostic result of obtaining in the step # 3 of Fig. 7 " liquid level diagnosis " i.e. " liquid level mark "; The diagnostic result of obtaining in step # 4 " undercharge diagnosis " i.e. " charging mark "; With i.e. " start identification " of the diagnostic result of obtaining in " engine start correspondence " (" starting characteristic diagnosis " of the step # 82 of Figure 11 in more detail) of step # 5.
The priority ranking of above-mentioned 3 diagnostic results is, prepreerence diagnostic result is the diagnostic result of " liquid level diagnosis ", and the next one is " undercharge diagnosis ", then the next one is " starter starting is corresponding ".
; when in the step # 131 of Figure 16, the value of " liquid level mark " becomes " deficiency "; the discontinuous mode of the hummer sound of hummer 7 is set as to the discontinuous mode (step #132) of long, to red light emitting diodes 6c light a lamp (step #133).
Lighting a lamp of the setting of this hummer sound and red light emitting diodes 6c is the set condition of recommending the meaning of the exchange of lead accumulator 4.
In addition, for the setting of hummer sound now, only specifying the discontinuous mode of hummer sound for hummer control circuit 8, is not that hummer rings immediately.Also be same for the setting of step # 135 described later.
When the value of " liquid level mark " is " enough " (step #131), whether the value of also judgement " charging mark " is " deficiency " (step # 1 34), during for " deficiency ", the discontinuous mode of the hummer sound of hummer 7 is set as to the discontinuous mode (step #135) of minor, to orange luminescence diode 6b light a lamp (step #136).
Lighting a lamp of the setting of this hummer sound and orange luminescence diode 6b is the set condition of recommending the meaning of the inspection of lead accumulator 4.
In step # 134, when the value of " charging mark " is " abundance ", transfer to the judgement for the value of " start identification ".
When the value of " start identification " is " Hi ", hummer 7 is set (step #139) in not loud mode, makes green LED 6a light a lamp (step #140).
When the value of " start identification " is " Mid ", the discontinuous mode of the hummer sound of hummer 7 is set as to the discontinuous mode (step #135) of minor, makes orange luminescence diode 6b light a lamp (step #136).
When the value of " start identification " is " Lo ", the discontinuous mode of the hummer sound of hummer 7 is set as to the discontinuous mode (step #132) of long, makes red light emitting diodes 6c light a lamp (step #133).
In addition, the each light emitting diode 6a, 6b, the 6c that light a lamp by above diagnostic process also light a lamp after diagnostic process finishes, but also can replace and lighting a lamp by one bright one mode of going out, and the setting of hummer sound also can replace by the switching of height or tone color the switching of length.
[detection of end of travelling]
Then, in step # 7 " detection of end of travelling ", make automobile stop travelling and the shut-down operation of carrying out engine detects to user, carry out the processing of following this detection.
The concrete contents processing of this step # 7 " detection of end of travelling " is the processing as the subroutine of " detection of end of travelling processing " expression of the process flow diagram of Figure 17.
First, detect detect the value of voltage more than 13.2V be changed to the value below 13.2V after (step #141), the difference of the detection voltage of waiting for last time and current detection voltage becomes below 40mV.Should " 40mV " be that the charging of carrying out according to alternator stops, can detecting the mode of voltage in stable state and the value set.
Now, counting in 10mSec is set and increases " the detection of end counter " of 1 time, the difference of the detection voltage of last time and current detection voltage becomes state continuance below 40mV during 30 seconds time (step #144), as the result of engine stop that detects automobile, indicate (step #145) for hummer control circuit 8 according to the mode that makes hummer sound ring.
According to above content, hummer control circuit 8, makes hummer 7 rings according to the pattern of setting in the step # 132 of Figure 16, #135, #139, the diagnostic result of the deterioration state of report lead accumulator 4.
Therefore, user, in the time that the state of wishing lead accumulator 4 is the situation of inspection or exchange, if temporarily interrupt engine, just can learn these according to the sound of hummer 7.
According to above content, microprocessor 5 detect as travelling of automobile stopped engine stop travelling detection of end cell S S and play a role.
[pattern conversion]
Then, " the pattern conversion " of execution step # 8.
The equipment for diagnosing degradable state of the secondary cell of present embodiment, if according to the assembly using microprocessor 5 as main body being arranged on lead accumulator 4 and the mode of being powered from lead accumulator 4 connects up, first, microprocessor 5 enters the sleep state that reduces power consumption.
If from this sleep state operation batch (-type) switch 3, start the processing of Fig. 7.
In the processing of execution graph 7, adopt step # 8 to detect the shut-down operation stipulating by batch (-type) switch 3 and be transfused to while operation, turn back to above-mentioned sleep state.According to the method for operating of the shut-down operation for making batch (-type) switch 3 regulation of carrying out that microprocessor 5 shifts to sleep state, and be different for the method for operating that makes microprocessor 5 start the operation of the batch (-type) switch 3 of the processing of Fig. 7.
In addition, in the processing of execution graph 7, thereby lead accumulator 4 discharges and output voltage reduces after microprocessor 5 stops completely, when the voltage of lead accumulator 4 recovers, re-starts the processing of Fig. 7.
In such situation, because the result store of the study of the information (data number counter) that the study that represents initial start characteristic is finished and initial start characteristic is kept in nonvolatile memory 5a, therefore again do not carry out initial learn.
[other embodiment]
Below, enumerate other embodiment of the present invention.
(1) in above-mentioned embodiment, although batch (-type) switch 3 is set, be transformed into the state of the processing of execution graph 7 from sleep state according to the operation of batch (-type) switch 3, and, to illustrating to turning back to dormant situation from the state of the processing of execution graph 7 according to the operation of batch (-type) switch 3, but, batch (-type) switch 3 also can be set, and from the assembly of equipment for diagnosing degradable state is arranged on lead accumulator 4 and finish wiring moment start the processing of Fig. 7.
(2) in above-mentioned embodiment, in Figure 12 " study of initial start characteristic is processed ", although try to achieve and evaluate with value " vcm " according to initial minimum voltage value, it is on nonvolatile memory 5a that this evaluation is kept to storage unit MM with value storage, but, also can only above-mentioned initial minimum voltage value storage be remained on to nonvolatile memory 5a upper, and " vcm " obtained in each diagnosis.
(3) in above-mentioned embodiment, the detection of end of travelling cell S S, although according to the engine stop of the detection voltage detecting automobile of voltage detection unit VS,, also can detect such mode according to the signal of the button operation stopping of indicating engine is accepted and form.
(4) in above-mentioned embodiment, although lead accumulator 4 is illustrated as secondary cell RB,, also can apply the present invention for other the secondary cell such as lithium ion battery.
Claims (10)
1. the equipment for diagnosing degradable state of a secondary cell, it is according to the detection information of voltage detection unit, diagnose the deterioration state of above-mentioned secondary cell, wherein said voltage detection unit detects the output voltage of secondary cell, this secondary cell is arranged in the moving body of being piloted engine with motor by engine start and to above-mentioned engine start motor and powers
The equipment for diagnosing degradable state of above-mentioned secondary cell comprises:
Storage holding unit, in above-mentioned secondary cell is arranged on to above-mentioned moving body and after starting to utilize above-mentioned secondary cell, first carry out minimum voltage and detect action, and be initial minimum voltage value by detected the detected minimum voltage of action by this minimum voltage or remain in storage unit with the evaluation value storage that this initial minimum voltage value has a relation of regulation, above-mentioned minimum voltage detects action for following actions, the ratio voltage regulation after above-mentioned engine start motor being started switch on during the time of detecting the voltage being detected by above-mentioned voltage detection unit changes once becomes the above-mentioned minimum voltage in the motor starting action of great moment after more, and
Diagnosis unit, after above-mentioned initial minimum voltage value or above-mentioned evaluation are remained on to said memory cells with value storage, according to the decline degree apart from above-mentioned initial minimum voltage value of carrying out the detected above-mentioned minimum voltage of above-mentioned minimum voltage detection action, diagnose the deterioration state of above-mentioned secondary voltage.
2. the equipment for diagnosing degradable state of secondary cell according to claim 1, is characterized in that,
The minimum voltage of following period during the time that the equipment for diagnosing degradable state of above-mentioned secondary cell detects the voltage being detected by above-mentioned voltage detection unit changes, be used as above-mentioned minimum voltage and detect action, during this period for above-mentioned engine start being started with motor after energising, once become from voltage regulation that the great moment starts till during reverting to above-mentioned engine start motor being started to the moment of the voltage energising.
3. the equipment for diagnosing degradable state of secondary cell according to claim 1 and 2, is characterized in that,
The equipment for diagnosing degradable state of above-mentioned secondary cell is in the time of the voltage being detected by above-mentioned voltage detection unit changes, being accompanied by becomes energising to the reducing amount of the voltage in setting-up time and starts to judge that the lower voltage more than setting value of use detects, be judged as the energising of above-mentioned engine start motor is started, and according to the diagnostic result of the deterioration state of above-mentioned secondary cell, above-mentioned energising is started to judge that the setting value of use sets change.
4. the equipment for diagnosing degradable state of secondary cell according to claim 1, is characterized in that,
The equipment for diagnosing degradable state of above-mentioned secondary cell detects the set threshold voltage of use when low in the voltage ratio undercharge that detected by above-mentioned voltage detection unit, being judged as above-mentioned secondary cell is undercharge, and the set threshold voltage that above-mentioned undercharge is detected to use according to the diagnostic result of the deterioration state of above-mentioned secondary cell is set change.
5. the equipment for diagnosing degradable state of secondary cell according to claim 2, is characterized in that,
The equipment for diagnosing degradable state of above-mentioned secondary cell detects the set threshold voltage of use when low in the voltage ratio undercharge that detected by above-mentioned voltage detection unit, being judged as above-mentioned secondary cell is undercharge, and the set threshold voltage that above-mentioned undercharge is detected to use according to the diagnostic result of the deterioration state of above-mentioned secondary cell is set change.
6. the equipment for diagnosing degradable state of secondary cell according to claim 3, is characterized in that,
The equipment for diagnosing degradable state of above-mentioned secondary cell detects the set threshold voltage of use when low in the voltage ratio undercharge that detected by above-mentioned voltage detection unit, being judged as above-mentioned secondary cell is undercharge, and the set threshold voltage that above-mentioned undercharge is detected to use according to the diagnostic result of the deterioration state of above-mentioned secondary cell is set change.
7. the equipment for diagnosing degradable state of secondary cell according to claim 1, is characterized in that,
Possess:
The detection of end of travelling unit, its engine stop to above-mentioned moving body detects; With
Reporting unit, it is accompanied by the above-mentioned detection of end unit that travels the engine stop of above-mentioned moving body is detected, and reports the diagnostic result of the deterioration state of above-mentioned secondary cell.
8. the equipment for diagnosing degradable state of secondary cell according to claim 2, is characterized in that,
Possess:
The detection of end of travelling unit, its engine stop to above-mentioned moving body detects; With
Reporting unit, it is accompanied by the above-mentioned detection of end unit that travels the engine stop of above-mentioned moving body is detected, and reports the diagnostic result of the deterioration state of above-mentioned secondary cell.
9. the equipment for diagnosing degradable state of secondary cell according to claim 3, is characterized in that,
Possess:
The detection of end of travelling unit, its engine stop to above-mentioned moving body detects; With
Reporting unit, it is accompanied by the above-mentioned detection of end unit that travels the engine stop of above-mentioned moving body is detected, and reports the diagnostic result of the deterioration state of above-mentioned secondary cell.
10. the equipment for diagnosing degradable state of secondary cell according to claim 4, is characterized in that,
Possess:
The detection of end of travelling unit, its engine stop to above-mentioned moving body detects; With
Reporting unit, it is accompanied by the above-mentioned detection of end unit that travels the engine stop of above-mentioned moving body is detected, and reports the diagnostic result of the deterioration state of above-mentioned secondary cell.
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| CN105270183B (en) * | 2010-05-14 | 2017-09-29 | 丰田自动车株式会社 | The control device and control method of secondary cell |
| JP5716823B2 (en) * | 2011-03-16 | 2015-05-13 | トヨタ自動車株式会社 | Deterioration diagnosis method for vehicle and power storage device |
| JP5278508B2 (en) * | 2011-07-25 | 2013-09-04 | 横河電機株式会社 | Battery degradation determination apparatus and method |
| JP6610558B2 (en) * | 2014-11-19 | 2019-11-27 | 株式会社Ｇｓユアサ | Secondary battery management device and secondary battery management method |
| CN104777431B (en) * | 2015-04-30 | 2018-07-17 | 大连楼兰科技股份有限公司 | Vehicle battery deterioration detecting device and method based on OBD interfaces |
| JP6657967B2 (en) * | 2016-01-06 | 2020-03-04 | 株式会社Ｇｓユアサ | State estimation device and state estimation method |
| FR3051916B1 (en) * | 2016-05-31 | 2020-07-10 | Renault S.A.S. | METHOD FOR ESTIMATING THE HEALTH CONDITION OF A BATTERY |
| WO2018083873A1 (en) * | 2016-11-02 | 2018-05-11 | ボッシュ株式会社 | Control device |
| JP6345292B1 (en) * | 2017-03-22 | 2018-06-20 | 本田技研工業株式会社 | Management device, program, management method and production method |
| JP7302557B2 (en) | 2020-09-04 | 2023-07-04 | カシオ計算機株式会社 | Method and program for detecting deterioration of electronic device and secondary battery |
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