CN102687034A - Method for recognising starting ability - Google Patents
Method for recognising starting ability Download PDFInfo
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- CN102687034A CN102687034A CN2011800054222A CN201180005422A CN102687034A CN 102687034 A CN102687034 A CN 102687034A CN 2011800054222 A CN2011800054222 A CN 2011800054222A CN 201180005422 A CN201180005422 A CN 201180005422A CN 102687034 A CN102687034 A CN 102687034A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
- G01R31/3647—Constructional arrangements for determining the ability of a battery to perform a critical function, e.g. cranking
Abstract
A method is provided for recognising the starting ability of a starter battery in connection with a start-stop controller of an internal combustion engine, in which in order to determine the charge state of the battery, different operating states of the internal combustion engine are taken into consideration, voltages of which are evaluated and no current measurement is required. The state of the battery is determined by means of an evaluation method which take takes place in three different operating states according to three different methods. Each different method is performed once when starting, driving and stopping the internal combustion engine.
Description
Technical field
The present invention relates to a kind of method that is used to discern the starting capability of starter battery, especially combine the starting of the starting/pattern out of service of the internal combustion engine in the motor vehicle/stop control.At this by means of by source of electrical energy---for example the starting device of starter battery feed comes cranking internal combustion engine.The invention still further relates to a kind of starting/stop control, it has the switching logic unit of the starting/pattern out of service of the internal combustion engine that is used for motor vehicle, and wherein, internal combustion engine can start by the starting device by the starter battery feed.In addition, the invention still further relates to a kind of computer program according to the method for the invention that is used to implement.
Background technology
Need discern the charged state of starter battery and derive said charged state thus whether enough in order to discern starting capability for reliable starting process.In order to try to achieve battery status, especially battery charging state, there have been a lot of methods.Battery status recognizer by means of specific can be avoided fault, especially in starting/halt system, hinders the mistake of resetting of the success of internal combustion engine to turn-off.These faults when resetting for example possibly caused by the charged state of the difference of battery.
Be used for the legacy system of battery status identification, usually measuring voltage and the electric current that flows to battery or electric current and the temperature obtained by battery.Try to achieve battery status by this tittle subsequently.But also have simpler battery status identification, it is worked under situation of current sensor not having.This battery status identification is described in DE 10258034A1.This battery status identification only needs voltage measurement except that temperature survey.For this reason, carry current impulse to system, the reaction of said current impulse causes potential pulse, and said potential pulse is in measured again aspect it and analysis.Information according to acquisition like this is tried to achieve battery charging state.
Summary of the invention
The method that is used to discern the starting capability of starter battery and is used to try to achieve battery status according to the present invention has following advantage: do not need current measurement; Do not need current sensor thus, therefore can realize statement very accurately about battery status, especially battery charging state.The method of the characteristic of said advantage through having claim 1 realizes.
The present invention based on battery status recognizer or the method support that is used for battery status identification starting/halt system of being used for the internal combustion engine of powered vehicle; Be to show whether battery enough charges for the resetting of the success of internal combustion engine well in mode.
Battery status recognizer according to the present invention is following scheme: can satisfy the requirement of low expense starting/halt system by said scheme.The required input quantity of algorithm that battery status identification perhaps is used for battery status identification is voltage and (in favourable expansion scheme) temperature on cell voltage, the trigger terminal.As the result of battery status recognizer, output is about the information of battery status.Said information advantageous particularly ground is only at two states---for good battery status and good thus or " HIGH (height) " of resetting ability or refire capability reliably with for the battery status of difference and the low thus perhaps insecure ability of resetting or " LOW (low) " of refire capability.
The device that is used for battery status identification according to the present invention advantageously only has two different state---" HIGH " or " LOW " on its output terminal.In favourable expansion scheme; Can so explain state " HIGH " or " LOW ", make for following battery status output state " HIGH ": battery status enough get well with guarantee can be under all conditions, especially carry out resetting or restarting of success under the critical condition of internal combustion engine.Output state " LOW " when following battery status: said battery status statement battery condition is enough good to be reset or restarts successfully implementing under all conditions.
In starting/halt system, observe information, so that reset during at the internal combustion engine (" stopping to enable ") that allows to turn-off operation under the situation of expectation and in corresponding start request (" start request ") or restart internal combustion engine by battery status identification output.
Description of drawings
Shown in the drawings and in description, set forth in detail and understand embodiment or relation, signal change curve and process flow diagram required for the present invention.
Fig. 1 at length illustrates an embodiment, in said embodiment, has drawn the measurement point of required voltage in the analytical approach.
The basis of implementing the battery status algorithm in different operation states in the stage has been shown in Fig. 2.
Cell voltage U during the start-up period has been shown in Fig. 3
BattThe typical change curve.
Fig. 4 shows the circuit of starter motor.
Different battery characteristics under the situation of different temperatures and charged state SOC have been shown in Fig. 5.
Process flow diagram according to the start-up period of strategy 1 has been shown in Fig. 6.
Process flow diagram according to the start-up period of strategy 2 has been shown in Fig. 7.
Fig. 8 shows the process flow diagram of the operation of going.
Fig. 9 shows the process flow diagram of shutdown phase C.
The block diagram of starter motor solenoid valve (Solinoid) has been shown in Figure 10.
Figure 11 shows the change curve for known temperature and the proportional starter motor-solenoid valve of battery status-voltage.
Figure 12 has drawn the time changing curve of solenoid valve threshold voltage in time.
Figure 13 illustrates for given charged state and the given relation of temperature between cell voltage and electric load.
Battery model data about threshold value have been shown in Figure 14.
Figure 15 shows electric voltage dropping U during spinning
DipAnd the relation between the duty factor.
The cell voltage to be analyzed before electric load during the idle running stage has been shown in Figure 16.
Embodiment
The input signal of battery status recognizer
An embodiment has been shown in Fig. 1, in said embodiment, has drawn the measurement point that is used for the required voltage of analytical approach.At this, at length show battery 10 with negative terminal 11 and plus end 12 and trigger 13 with terminal T30.Cell voltage is with U
BattExpression and voltage on the terminal T30 are with U
T30Expression.
In the battery status recognizer, use the following information of voltage of total system: as the cell voltage U of the voltage that measures between the positive splicing ear of battery 10 and the negative splicing ear
Batt, and the splicing ear voltage U
T30---the voltage that promptly between the negative terminal 11 of the terminal T30 of trigger and battery 10, measures.For basic scheme, cell voltage U only
BattBe enough to implement said algorithm.Scheme for expansion also needs the T30 terminal voltage as input quantity.Fig. 1 illustrates the affiliated measurement point of input voltage of wiring and the battery identification algorithm of battery 10 and trigger 11.
Additionally, in the battery status recognizer, it is also conceivable that the following information that is used to discern battery status: have the voltage on the starter relay terminal T50 of on/off state, and the rotating speed of internal combustion engine.These two additional informations are original in device for controlling engine just to be existed and can be used for other Different control or regulating system, also can be used as input signal and is used for battery status identification.
Battery status identification for example is analysis logic unit, processor or opertaing device; Said opertaing device is transferred required information, and said opertaing device implements amount that required analysis or computing method and output representative tried to achieve, be the output signal of the battery charging state of being tried to achieve at this.
Battery status recognizer (Battery-State-Detection-Algorithmus (BSD): the process battery status detection algorithm)
The BSD algorithm is worked in vehicle operation round-robin three phases:
Stage A: start-up period
Stage B: the operation of going
Stage C: shutdown phase
Said algorithm begins with start-up period A.Be stage B after start-up period---the operation and after turn-offing internal combustion engine, be shutdown phase C of going.Along with resetting of the back of internal combustion engine, also reset said algorithm.Fig. 2 illustrates the three phases of BSD algorithm.At this, on time t, drawn voltage U.The different illustrative examples of the time period of voltage or duration in stage are as being regarded as the example of possible applied variants scheme.
Start-up period A
Go up the condition during when starter relay is connected, trying to achieve start-up period A at terminal 50 (it may also be referred to as splicing ear 50).Start-up period is the stage of coming cranking internal combustion engine by starter motor.When cranking internal combustion engine, voltage drop appears, because the electric current of being drawn by starter motor is very high and cause said voltage drop.
Cell voltage U during the start-up period has been shown in Fig. 3
BattThe typical change curve.In order to try to achieve battery status, the electric voltage dropping U during the split-phase starting
DipU
DipBe the voltage that under the situation of the short-circuit current of trigger, occurs.Two types strategy can be derived by the change in voltage curve during the start-up period, the battery status during the start-up period can be discerned or try to achieve by means of these two kinds of strategies.Can select one of two strategies of following explanation:
Strategy 1: try to achieve about the information of battery status and by electric voltage dropping U by the resistance of battery
DipConfirm battery status.Use two input informations---cell voltage U at this
BattWith the voltage U on the terminal T30
T30
Strategy 2: only according to electric voltage dropping U
DipTry to achieve battery status identification.Use an only input signal---cell voltage U for this reason
BattFig. 4 illustrates the circuit of the starter motor with the required amount of two strategies of understanding.This is the line resistance R of circuit 14
c, battery 10 internal resistance R
iResistance R with starter motor 13
m
Strategy 1: by U
DipCalculated resistance internal resistance R
i
Along with starter motor was connected on the battery before starter motor begins rotation, maximum short-circuit current flows through starter motor and being connected between starter motor and battery.Said short-circuit current is called I
SC, it is made up of following:
I
sc=U
Batt/(R
i+R
c+R
m)
Said short-circuit current causes cell voltage U
BattUnder darker electric voltage dropping.The cell voltage that when short-circuit current occurring, occurs is called the Dip voltage U
DipThus, can be according to following equation by the Dip voltage U
DipThe internal resistance R of counting cell
i:
R
i=(U
Batt1-U
dip)/I
sc
At this, voltage U
Batt1Be to connect trigger cell voltage U before
BattAccording to following relation by voltage U
T30Calculate short-circuit current I
SC:
I
sc=(U
dip-U
T30dip)/R
T30
At this, voltage U
T30dipBe the Dip voltage of the maximum that on the T30 of trigger terminal, measures.Resistance R
T30Be the resistance of the positive splicing ear 12 of battery 10 and splicing ear on the starter motor 13 or the cable between the terminal T30.Resistance R
T30As considering in the battery status recognizer with application-related parameters.
T
30The temperature model of cable
T
30The resistance of cable (being the cable between battery 10 and the starter motor 13) changes according to temperature.Resistance is not under all service conditions of vehicle, all to have constant value, because the temperature of internal combustion engine or environment for example-5 ℃ is fluctuating to+80 ℃ wide region.Predict the temperature of T30 cable during the vehicle operating by means of temperature model.At this, temperature model uses engine temperature and intake air temperature to be worth as a reference.Temperature by these reference value that in device for controlling engine, just existed originally usually prediction cables.Cable temperature based on by means of the temperature model prediction can realize R
T30The suitable correction of value.
The internal resistance R that is allowed of battery 10
IaCalculating
The internal resistance R of battery 10
iValue and maximum value that allows or the maximum ultimate value R that allows
IaCompare.The internal resistance that is allowed by the maximum of battery obtains said value R
Ia, starter motor can accelerate to by it and successfully start on the required speed, wherein, can so drive internal combustion engine thus, makes to have the starting capability of success.
At this, in the value of the internal resistance of considering to select under the following true situation to be allowed: cell resistance rising when ambient temperature descends.Ambient temperature is in this temperature during the vehicle parking especially.
The internal resistance R that is allowed
IaValue be not constant parameter.It when battery temperature changes.This means that it is a dynamic value, it is confirmed under the situation of considering battery temperature during the start-up period.Can try to achieve the internal resistance R that is allowed of battery 10 by following amount
IaValue:
T
c: need the minimum temperature of engine start ability, unit is ℃,
R
Imax: at minimum temperature T
cThe time obtain the required internal resistance of cell of starting capability, unit is a milliohm,
S
Min: corresponding to T
cThe time battery the charged state SOC of battery of maximum internal resistance, unit is a number percent,
T
Batt: the temperature of battery, unit is ℃,
R
Ia: the internal resistance that is allowed of the battery of the charged state SOC during corresponding to current battery temperature.
The minimum state of charge S of charged state SOC during corresponding to different temperatures
MinThe value of the internal resistance of cell of (number percent) flows to algorithm as input quantity.Come the counting cell temperature T by means of temperature model
BattBattery temperature model use intake air temperature and engine temperature are as the reference value of counting cell temperature.These values are provided by the opertaing device of internal combustion engine in case of necessity.
Below illustrate the maximum internal resistance R that is allowed
ImaxWith the internal resistance R that is allowed
IaThe selection of ultimate value.For this reason from following value: necessarily exist the minimum temperature of the starting capability of internal combustion engine to be-5 ℃.The internal resistance of cell R that starting capability is required
ImaxBe 5.0 milliohms.Can learn by battery characteristics or characteristic curve: battery during corresponding to-5 ℃ the SOC of 5.0 milliohms be 60%.That is to say that battery must be 60% for the starting capability that under predetermined condition, is allowed at least.
Different battery characteristics when different temperatures has been shown in Fig. 5 with charged state SOC.At this, on charged state SOC, drawn the internal resistance of cell.In upper area, charged state is bad.
From Fig. 5, can see, for example corresponding to 50 ℃ of desired maximum temperature battery temperature the time, obtain the internal resistance R that is allowed of 4.2 milliohms
IaValue.If the value of internal resistance compares the internal resistance R that is allowed
IaValue lower, promptly better, then battery status is called " HIGH "." HIGH " state that is shown by battery status identification means: battery charge level is enough for ensuing successful resetting or restart.This means: as long as satisfy the every other condition of turn-offing internal combustion engine, then starting/halt system can turn-off internal combustion engine.
If the value of internal resistance Ri is higher than the internal resistance R that is allowed
IaValue, then battery status is shown as " LOW "." LOW " state that is shown by battery status identification means: battery charge level for ensuing successful reset or restart for not high enough.If battery status is shown as during the start-up period " LOW ", then battery status remains " LOW " with continuing, at least on the time period of minimum duration of charging Tmc.
This means: if the said time does not finish, the continuation that does not then allow to carry out internal combustion engine through starting/halt system is turn-offed.If the engine speed during the operation phase of going greater than idler revolutions, then begins duration of charging T
cCalculating.
Usually, as the meaning of " LOW " state in the starting/halt system of giving a definition: if battery status identification output can be inferred the signal of " LOW " state, then do not turn-off internal combustion engine, although satisfied the every other condition of turn-offing internal combustion engine.Maybe be when having avoided thus restarting again owing to the charged state of battery is crossed the low fault that occurs.Similarly, at parking period, if battery status identification show state " LOW " then impels engine starting by starting/halt system.In parking, internal combustion engine normally turn-offs, and battery provides electric energy to different electrical appliances.Avoided for the ensuing fault that possibly occur of restarting through resetting owing to the further discharge of battery.
If signal " HIGH " flows to starting/halt system, then there is high battery charging state, if other conditional requests are turn-offed, then allow to turn-off internal combustion engine.At this, can realize reliably resetting, because the battery status condition is enough for the resetting of success.Similarly, as long as battery charging state is " HIGH ", then during shutdown phase, allow to turn-off internal combustion engine.
Process flow diagram according to the start-up period of strategy 1 has been shown in Fig. 6.
Each step is represented:
Step S1: measure U
DipAnd U
T30dip
Step S2: counting cell internal resistance R
i
Step S3: inspection R
iWhether less than the resistance R that allows
IaIf saidly relatively draw internal resistance, then in step S4, in the duration of definition, state " LOW " is set less than the internal resistance that is allowed.If step S3 draws internal resistance less than the internal resistance that is allowed, then state " HIGH " is set for step S5.
Strategy 2: from electric voltage dropping U
DipBattery status information
In said method, for electric voltage dropping U
DipBe assumed to the limiting voltage U that is allowed
DiplWork as U
DipLess than voltage U
DiplThe time, battery status was set on the state " LOW " on the minimum duration of charging.Work as U
DipGreater than U
DiplThe time, battery status is set on " HIGH ".U
DiplUltimate value corresponding to the U that when having the minimum battery status of SOCSmin during the start-up period at internal combustion engine, obtains
DipValue.
Process flow diagram according to the start-up period of strategy 2 has been shown in Fig. 7.At this, measuring voltage U in step S6
DipAnd voltage U
T30dipIn step S7, check U
DipWhether greater than threshold value U
DiplIf not like this, then in step S8, on the time cycle of definition, state " LOW " is set.If step S7 draws U
DipGreater than threshold value U
Dipl, state " HIGH " then is set in step S9.
Stage B, the operation of going
Go the operation condition be, the rotating speed of internal combustion engine is more than or equal to idler revolutions, wherein, idler revolutions are applicable values.When internal combustion engine operation, upgrade the value of duration of charging Tnc continuously.The period of time T c through weighting through integral battery voltage during greater than charging limit voltage calculates duration of charging Tnc.Be equally applicable to time period Tdc, cell voltage is less than limiting voltage during the said time period.Also carry out integration subsequently.Be suitable for following relation:
Tnc=int(ne?x?Tc)-int(Tdc)
Introduce factor ne as efficiency factor.Because the form with heat between charge period loses certain quantity of energy, the said factor of said needs.Said efficiency factor is described said effect.Factor can depend on battery types, battery charging state and/or battery temperature.If battery status shows battery status " LOW " during being identified in start-up period, if the value of duration of charging section Tnc greater than can be predetermined, applicable time period, then be set to battery status in the state " HIGH ".If the value of duration of charging section Tnc then was set to state on " LOW " less than the predetermined time period.
The possible applicable value of stage B (operation of going):
13.5V be like threshold voltages: more than said threshold voltage, all battery is charged under all conditions at the run duration that goes.
13.0V be like threshold voltages: below said threshold voltage, battery is not charged at the run duration that goes.
Be like lower area between 13.0V and 13.5V: can not explain reliably that in the zone battery is recharged or discharged.
Illustrated magnitude of voltage can be different for different application, especially depend on the electric system of vehicle.
Fig. 8 illustrates the process flow diagram of operation (stage B) of going.At this, in step S10, measure cell voltage U
BattIn step S11, calculate duration of charging Tc.In step S12 inspection duration of charging Tc whether one can be predetermined value on.If situation is not like this, state " LOW " is set in step S13 then.If duration of charging Tc then is provided with state " HIGH " greater than value that can be predetermined in step S14.
Shutdown phase C
The condition of shutdown phase is that the rotating speed of internal combustion engine equals 0.Shutdown phase related to like the next stage: internal combustion engine turn-offs during the said stage, for example because the corresponding cut-off signals of starting/halt system.Can electric energy be provided by petrol-electric generating set, and only flow at the required electrical appliance of said time durations by the energy that battery provides.Because battery is to the electrical appliance delivered charge, voltage reduces during shutdown phase.When cell voltage reaches a specific ultimate value UI, battery status is set on " LOW ".
Show " LOW " state in the shutdown phase if battery status is identified in, then starting/halt system is initiated the vehicle launch requirement.On the contrary, if the battery shape remains on " HIGH ", then vehicle remains in the shutdown phase.
If shutdown phase is for example greater than five minutes, then battery status identification is provided with state " LOW ", even cell voltage is higher than ultimate value UI.If discharge current less than one for example 5 amperes can be predetermined value, the remarkable reduction of cell voltage then can not appear, though the discharge carry out the longer time.Under these conditions, battery loses its electric charge, and battery link voltage or battery terminal voltage U
BattSignificantly do not change.In order to consider these conditions, predetermined five minutes time restriction during shutdown phase.Also can select other suitable values as time restriction.
Definition limiting voltage UI, it forms under the situation of considering following amount:
Tc (unit for ℃): require the minimum temperature of the starting capability of internal combustion engine,
Rimax (unit is mOhm): realize the required internal resistance of cell of starting capability,
Smin (unit is %): the battery charging state under the minimum temperature Tc (cold start conditions) when its largest battery internal resistance Rimax,
T
Batt: battery temperature.
Y (unit is an ampere): the average electrical load during the vehicle parking.
UI: limiting voltage is defined as when minimum temperature Tc when its largest battery internal resistance Rimax when the charged state Smin of battery (unit is %) at battery with the cell voltage under the condition of Y ampere charging.
At this, the value of limiting voltage UI is relevant with the temperature of battery.
Fig. 9 illustrates the process flow diagram of the operation among the shutdown phase C.
In Fig. 9, at length show and in step S15, measure cell voltage U
BattIn step S16, cell voltage and limiting voltage UI are compared.If saidly relatively draw: cell voltage U
BattBe not more than limiting voltage, state " LOW " then is set in step S17.If relatively drawing in step S16: cell voltage U
BattGreater than voltage U I, state " HIGH " is set in step S18 then.
Be used for replenish and the other measure of battery status identification:
The electric current of magnetic coil that flows through trigger is as the indication of battery status
In another battery status recognizer,, the electric load of a definition tries to achieve battery status when being connected on the battery.Cell voltage falls with battery status and resistance relevantly.At this, battery terminal voltage U
DipProportional with battery status, this is applicable to the load of definition respectively.Thus, can be for known temperature in the hope of battery charging state SOC, its mode is when connecting the electric load of definition, to measure cell voltage and fall.In said scheme, the electric load of definition is a starter motor.Also can analyze the connection of other electrical appliances that cause significant electric voltage dropping, for example vehicle window heating arrangement, heater plug, fuel heater, ventilator, car light or the like.
The method of operation of starter motor
Turn on and off starter motor by means of starter relay.At this, starter relay comprises specific magnetic coil.Magnetic coil has two windings usually---and connect winding EW and keep winding HW.When starter motor brought into operation, the winding of closing coil on the short time was so that closed starter motor contact.When starter motor starts, only to the maintenance winding service voltage of magnetic coil.
In Figure 10, schematically show the block diagram of starter motor with starter relay.At this, starter motor is with 13 expressions, and battery is with 10 expressions.18 expression ignition switches, and 15 expressions have the starter relay that attracts winding 16 and maintenance winding 17.
Figure 11 illustrates the electric voltage dropping U of the voltage on the starter motor for the different charged states of battery
DipChange curve.At this, respectively for the temperature of confirming, the curve of the topmost full battery of representative and the curve of foot is represented 65% battery charging state.Like what from Figure 11, can see, can try to achieve battery status for known battery temperature, its mode is, will have the electric load that the starter motor of starter relay is regarded as defining, and analyze the electric voltage dropping when connecting said electric load.
Said scheme functional
For the resetting or restart of the success of internal combustion engine, for the given minimum battery charging state of temperature definition.The voltage that is applied on the starter relay is voltage U
DiplDuring start-up period, through the starter motor cranking internal combustion engine.Measurement is in the Dip of this appearance voltage U
DipWith measured voltage and threshold value U
DiplCompare.Can be set to " HIGH " according to comparative result identification battery status still is " LOW "." High " means that again battery status successful reset or restart and Yan Shihao for ensuing.Equally, battery status " LOW " is set when battery status is good inadequately for the resetting of success.
In Figure 12, show the time changing curve of the voltage on the starter motor in time for the different charged states of battery corresponding to a part according to the change curve of Figure 11.Electric voltage dropping U
DipIt is respectively minimum value.If voltage is less than threshold value U
Dipl, battery status " LOW " then is set.
The charged state prediction of shutdown phase C
In the shutdown phase of vehicle, the voltage drop on battery-end or the battery terminal 12 is proportional for known temperature and known battery charging state SOC and electric load electric current I L.Figure 13 illustrates cell voltage U for given charged state SOC and given temperature
BattAnd the relation between electric load or the load current IL.
In order during shutdown phase, to judge current battery status, must the definition threshold voltage.Battery model data in Figure 14, have been provided about threshold voltage.Charged state SOC is suitable for the battery voltage threshold of 11.9 volts UBattl.As shown in the said table, discharge current is low more, and then the charged state ultimate value can be set to low more.Discharge current is high more, and then the charged state ultimate value must be set to high more.For the selection of charged state ultimate value, obtain 18% wide tolerance range.
Wide tolerance range for the charged state SOC that reduces battery 10 is provided with voltage limit UBattl pro rata with load current.But because load current is unknown, so predict the electric load electric current adaptively according to following scheme.
First method to this is " DFM " signal, is the analysis of the dutycycle of exciting current:
If the characteristic DFM signal of the generator " output " is provided in vehicle or in the opertaing device of vehicle, then duty factor and load current are proportional and can be by following analysis.Can be before detecting " DFM signal " under the situation of idle speed or idler revolutions or turn-offing internal combustion engine under the situation of the speed of other definition or rotating speed, detect " DFM signal ".Thus, can confirm electric voltage dropping U according to the duty factor of the electric load that connected in the shutdown phase or in the idle running
DiplUltimate value.Thus, the tolerance range of charged state is reduced on the littler value.
In Figure 15, on the dutycycle of electric load factor DF or exciting current, show during spinning landing U for the cell voltage of 65% charged state SOC
Battdip
Second method to this is the analysis of voltage levvl:
Said scheme can be used for following situation: " DFM signal " is unavailable.At this, for example can be at the voltage levvl on the monitoring battery under the situation of idler revolutions.Electric load electric current in idle running electric voltage dropping occurs during greater than the generator output current.Said electric voltage dropping is roughly proportional with the electric load that surpasses dynamo current.Thus, when idler revolutions, before turn-offing internal combustion engine, realize cell voltage U
BattMonitoring, estimate corresponding load and select under limit U
BattdiplSaid method has reduced the tolerance range of estimated battery state equally.When electric load during less than the electric current that can provide by generator, cannot use said method, affiliated zone is called " blind area ", because voltage remains unchanged and remains on the charge level.
In Figure 16, showing cell voltage U to be analyzed during the idle running stage on the electric load factor for 65% battery charging state SOC
BattChange curve.So-called " blind area " is positioned at the left side of dotted line, on its right side---promptly under the situation of higher load, can analyze.
Claims (14)
1. be used for discerning starting capability, in particular for the method for the starting capability of the starter battery of the starting of the internal combustion engine of motor vehicle/stop to control, wherein, start said internal combustion engine by starting device by said starter battery feed; And have the device that is used to discern battery status, said method is moved in said device, it is characterized in that; Consider the running status of said internal combustion engine, and with said running status be divided at least three the different stages (A, B; C); And for said three phases (A, B, the distinctive battery status recognition methods of each operation in C).
2. method according to claim 1 is characterized in that, said battery status recognition methods moves as algorithm.
3. method according to claim 1 and 2; It is characterized in that; Said battery status recognition methods or output state " HIGH " or output state " LOW " are as the information about said battery status; Wherein, said state " HIGH " means resets ability or refire capability reliably, and said state " LOW " means insecure ability of resetting or refire capability.
4. according to claim 1,2 or 3 described methods, it is characterized in that, for (each in the battery status recognition methods of C) implementing is provided with a state of representing said state " HIGH " or said state " LOW " for A, B to said three phases.
5. according to claim 1,2,3 or 4 described methods, it is characterized in that said three different stage (A; B; C) be real start-up period (A), transport condition (B) and shutdown phase (C).
6. according to each described method in the above claim, it is characterized in that, in the phase one (A), so carry out voltage analysis, make and when connecting said trigger (13), analyze electric voltage dropping (U
Dip) the degree of depth.
7. method according to claim 6 is characterized in that, through trying to achieve the internal resistance (R of said battery (10)
i) carry out said battery status identification, remove said electric voltage dropping (U
Dip) the degree of depth beyond also consider said cell voltage (U
Batt) and trigger terminal (T
30) on voltage (U
T30).
8. method according to claim 7 is characterized in that, additionally account temperature.
9. according to each described method in the above claim, it is characterized in that, the integration of enforcement and time correlation in subordinate phase (B), normal incidence is considered the electric charge of being carried and the electric charge that the negative ground consideration is obtained in said integration.
10. method according to claim 9; It is characterized in that, the definition duration of charging section (Tc), if said duration of charging section (Tc) greater than one can be predetermined time period; Then output state is set on " HIGH ", otherwise output state is set on " LOW ".
11. according to each described method in the above claim; It is characterized in that; Expression be limited at one can be predetermined duration on phase III (C) of shutdown phase in carry out voltage analysis as follows, make and in the said stage (C), try to achieve the voltage drop that produces through load current (IL).
12. according to each described method in the above claim; It is characterized in that; In the said phase III (C) under the situation of the threshold voltage of considering to try to achieve by battery model; Under the situation of the charging current of considering charged state (SOC), temperature (T) and expection or discharge current, carry out the judgement of current battery status.
13. be used for implementing device according to above each described method of claim; It is characterized in that said device comprises input media, processor or computing machine and the storage arrangement that is used to carry signal at least and is used to export the output unit of the output signal of the said battery status of explanation.
14. the device that is used to start/stops to control is characterized in that, is used as according to the output signal of the said battery status of explanation of claim 13 and is used to stop the standard that stops to expect.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010000679.3 | 2010-01-05 | ||
| DE102010000679A DE102010000679A1 (en) | 2010-01-05 | 2010-01-05 | Method for detecting startability |
| PCT/EP2011/050042 WO2011083108A1 (en) | 2010-01-05 | 2011-01-04 | Method for recognising starting ability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102687034A true CN102687034A (en) | 2012-09-19 |
| CN102687034B CN102687034B (en) | 2017-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180005422.2A Expired - Fee Related CN102687034B (en) | 2010-01-05 | 2011-01-04 | Method for recognizing starting capability |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2521923A1 (en) |
| CN (1) | CN102687034B (en) |
| DE (1) | DE102010000679A1 (en) |
| WO (2) | WO2011083062A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110063014A (en) * | 2016-12-16 | 2019-07-26 | 西门子股份公司 | For area of computer aided run the method and apparatus of motor |
| CN111608837A (en) * | 2019-02-25 | 2020-09-01 | 罗伯特·博世有限公司 | Method and device for assisting a starting process of an internal combustion engine |
| CN112858923A (en) * | 2019-11-12 | 2021-05-28 | Seg汽车德国有限公司 | Method for determining the state of charge of a vehicle battery of a vehicle |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4962808B2 (en) | 2009-02-24 | 2012-06-27 | 株式会社デンソー | Engine automatic control device and storage battery charge control device |
| DE102011080427A1 (en) * | 2011-08-04 | 2013-02-07 | S-Y Systems Technologies Europe Gmbh | Electric supply system for a vehicle |
| JP5983197B2 (en) * | 2012-08-31 | 2016-08-31 | マツダ株式会社 | VEHICLE POWER SUPPLY DEVICE AND ITS CONTROL METHOD |
| DE102012218737B4 (en) * | 2012-10-15 | 2022-03-31 | Bayerische Motoren Werke Aktiengesellschaft | Method for automatically switching off and starting an internal combustion engine |
| DE102013221502A1 (en) * | 2013-10-23 | 2015-04-23 | Volkswagen Aktiengesellschaft | Generation of test pulses |
| US10215148B2 (en) | 2016-08-29 | 2019-02-26 | GM Global Technology Operations LLC | No-start diagnostics for powertrain with enabled starter |
| US10830827B2 (en) * | 2017-07-28 | 2020-11-10 | Northstar Battery Company, Llc | Operating conditions information system for an energy storage device |
| EP3470859A1 (en) * | 2017-10-12 | 2019-04-17 | Aptiv Technologies Limited | Apparatus and method for predicting a battery state-of-function |
| DE102018218579A1 (en) * | 2018-10-30 | 2020-04-30 | Robert Bosch Gmbh | Method and device for detecting a defect in a battery in a low-voltage electrical system of an electric vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990004188A1 (en) * | 1988-10-14 | 1990-04-19 | Allied-Signal Inc. | Automotive battery status monitor |
| CN1609430A (en) * | 2003-10-23 | 2005-04-27 | 日产自动车株式会社 | Control apparatus and method for vehicle equipped power supply having battery deterioration diagnostic feature |
| CN101276949A (en) * | 2007-12-27 | 2008-10-01 | 奇瑞汽车股份有限公司 | Device and method for detecting battery performance of hybrid power vehicle |
| CN101592713A (en) * | 2008-05-28 | 2009-12-02 | 株式会社日本自动车部品综合研究所 | On-vehicle battery condition estimation device |
| JP4641838B2 (en) * | 2005-03-18 | 2011-03-02 | ダイハツ工業株式会社 | Idle operation stop control method for internal combustion engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10258034A1 (en) | 2002-12-12 | 2004-06-24 | Robert Bosch Gmbh | Battery state detection |
-
2010
- 2010-01-05 DE DE102010000679A patent/DE102010000679A1/en not_active Withdrawn
- 2010-12-28 WO PCT/EP2010/070768 patent/WO2011083062A1/en active Application Filing
-
2011
- 2011-01-04 EP EP11700230A patent/EP2521923A1/en not_active Withdrawn
- 2011-01-04 WO PCT/EP2011/050042 patent/WO2011083108A1/en active Application Filing
- 2011-01-04 CN CN201180005422.2A patent/CN102687034B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990004188A1 (en) * | 1988-10-14 | 1990-04-19 | Allied-Signal Inc. | Automotive battery status monitor |
| CN1609430A (en) * | 2003-10-23 | 2005-04-27 | 日产自动车株式会社 | Control apparatus and method for vehicle equipped power supply having battery deterioration diagnostic feature |
| JP4641838B2 (en) * | 2005-03-18 | 2011-03-02 | ダイハツ工業株式会社 | Idle operation stop control method for internal combustion engine |
| CN101276949A (en) * | 2007-12-27 | 2008-10-01 | 奇瑞汽车股份有限公司 | Device and method for detecting battery performance of hybrid power vehicle |
| CN101592713A (en) * | 2008-05-28 | 2009-12-02 | 株式会社日本自动车部品综合研究所 | On-vehicle battery condition estimation device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110063014A (en) * | 2016-12-16 | 2019-07-26 | 西门子股份公司 | For area of computer aided run the method and apparatus of motor |
| CN110063014B (en) * | 2016-12-16 | 2023-04-25 | 西门子股份公司 | Method and device for computer-aided operation of an electric machine |
| CN111608837A (en) * | 2019-02-25 | 2020-09-01 | 罗伯特·博世有限公司 | Method and device for assisting a starting process of an internal combustion engine |
| CN111608837B (en) * | 2019-02-25 | 2023-05-23 | 罗伯特·博世有限公司 | Method and device for supporting a starting process of an internal combustion engine |
| CN112858923A (en) * | 2019-11-12 | 2021-05-28 | Seg汽车德国有限公司 | Method for determining the state of charge of a vehicle battery of a vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102687034B (en) | 2017-09-05 |
| DE102010000679A1 (en) | 2011-07-07 |
| WO2011083108A1 (en) | 2011-07-14 |
| WO2011083062A1 (en) | 2011-07-14 |
| EP2521923A1 (en) | 2012-11-14 |
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