CN1880117A - Environment control system and method for vehicle-mounted accumulator - Google Patents
Environment control system and method for vehicle-mounted accumulator Download PDFInfo
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- CN1880117A CN1880117A CNA2005100764463A CN200510076446A CN1880117A CN 1880117 A CN1880117 A CN 1880117A CN A2005100764463 A CNA2005100764463 A CN A2005100764463A CN 200510076446 A CN200510076446 A CN 200510076446A CN 1880117 A CN1880117 A CN 1880117A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Hybrid Electric Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention relates to a control system used in vehicle accumulator, wherein said system comprises a gas inlet for receiving external gas; a tube system communicating between the gas inlet and accumulator; said tube system comprises a movable door for accelerating or forbidding the air motion between the gas inlet and the accumulator, a gas outlet for accelerating the air motion between the tube system and the external environment; the fan and the tube system are cooperated to push air, to make it pass the heat exchanger of tube system and pass the accumulator; the control system controls the fan and the first door, and detects if the accumulator needs fresh air or cycle air.
Description
Technical field
The present invention relates to the environmental control system and the method for storage battery in the vehicle.
Background technology
Many hybrid electric vehicles (HEV) all have high tension battery, to provide power to one or more electrical equipments.Can handle as one or more electrical equipments of electrical motor and assist to promote vehicle, also can handle the one or more electrical equipments such as electrical generator, electrical generator is used for charging accumulator.Need cooling system to help such as storage battery used in the hybrid electric vehicles, become too high so that the temperature that guarantees them is unlikely.In addition, also can expect to be the environment ventilation around the storage battery.
For to cooling of storage battery surrounding environment and/or ventilation, a series of alternative is arranged.For example, can be from the cooling of passenger carriage suction air and/or the ventilation storage battery of vehicle.Yet this method is not ideal, because the air in the passenger carriage is normally warm, can not cool off fully, with the temperature of abundant reduction storage battery.In addition, if storage battery ambient air repetitive cycling enters in the passenger carriage, may be to the air themperature of passenger carriage and thus passenger's comfort level is produced disadvantageous effect.
An alternative plan is fresh ambient air cooling and the ventilation storage battery that utilizes car outer.This method is also not ideal, because surrounding air may be too hot, so that abundant cooling accumulator, perhaps surrounding air is too cold, thus must to improve ambient temperature earlier, surrounding air is contacted with hot storage battery.Moreover, when the surrounding air used from outside vehicle, must take measures to suppress the inflow of dust, water and foreign matter.
Summary of the invention
Therefore, the invention has the advantages that it provides a kind of method and system that is used to control the in-vehicle secondary battery surrounding environment, described method and system can utilize fresh air or circulating air, and cooling and ventilation are provided, can suppress external substance simultaneously and flow into from outside vehicle.
Another advantage of the present invention is, provides a kind of and is used for controlling each system and method for cooling system, so that selectively allow or forbid environment around storage battery and the circulation between the environment of car outside.The present invention also provides the selection control to an above fan, so that assist the cooling and the ventilation of storage battery.
The present invention also provides a kind of method that is used to control the in-vehicle secondary battery surrounding environment.Described method comprises: determine whether battery environment needs to ventilate, and this definite temperature independent.Described method also comprises: when definite battery environment need be ventilated, some air at least of storage battery surrounding environment and the air of outside vehicle surrounding environment exchanged.
The present invention also provides a kind of method that is used to control the in-vehicle secondary battery surrounding environment.Described vehicle comprises driving device and is used for the air conditioner system of storage battery.Described method comprises: carry out the first battery environment control policy, comprising definite at least one vehicle operating condition.When the execution of the first battery environment control policy shows that battery environment need be ventilated, make the airiness of battery environment and car outside environment.
When the execution of the first battery environment control policy does not show that battery environment need be ventilated, carry out the second battery environment control policy.The second battery environment control policy comprise following in the two one of at least, determine promptly whether current transmission gear and definite storage battery air conditioner system is operated.When the second battery environment control policy was represented prohibit the air that shows storage battery ambient air and car outside environment and exchanged, air is circulation around storage battery.
When the air of not representing to prohibit the surrounding environment that shows storage battery ambient air and outside vehicle when the second battery environment control policy exchanges, carry out the 3rd battery environment control policy.The execution of the 3rd battery environment control policy comprises: determine the temperature of battery temperature and outside vehicle surrounding environment, and the temperature according to battery temperature and outside vehicle surrounding environment realizes battery environment control at least in part.
The present invention also provides a kind of environmental control system that is used for in-vehicle secondary battery.Described system comprises an admission port, is used to receive the air from the outside vehicle surrounding environment.Plumbing system can provide the interchange between admission port and the storage battery.This plumbing system comprises first, and first can be moved between the primary importance and the second place, and primary importance is used to promote the motion of air between admission port and storage battery, and the second place is used to forbid the motion of air between admission port and storage battery.The planform of air extractor duct can promote the air flows from plumbing system to the outside vehicle surrounding environment.Fan and plumbing system concerted action so that promote air, enable to pass at least a portion plumbing system and move by storage battery.The control system that comprises an above controller is configured to control fan and first 's action, and can determines whether battery environment needs to ventilate.Also should be configured to control system when definite battery environment need be ventilated, can order first to enter primary importance and handle fan, can promote air whereby, make it enter and pass storage battery by admission port, and drawn by air extractor duct.
The control policy for one or more that describes below can be handled described system by fresh air mode, with the purpose of using surrounding air to reach cooling and ventilate, and under the just adopted situation of storage battery air regulation (A/C), handle described system by circulation pattern, to optimize cooling effectiveness.In the surrounding environment of cold, fresh air may be the unique source of battery cooling.In the surrounding environment of gentleness, before battery carries out the air regulation cooling, reduce because of adopting the impact of air regulation conservation of fuel with fresh air.In the surrounding environment of sweltering heat, fresh air only is used to ventilate, and the air regulation of storage battery is the main source of cooling, and when ventilating except needs, door is closed, and system is according to circulation pattern work.Except ventilate carrying out, stop or during Neutral Position, perhaps after vehicle is in the key off-state, also will use the control policy of door when transmission gear is in, with the danger of the suction that reduces dust and water.
In case need storage battery cooling (air regulation or fresh air) or ventilation, the Fan Control strategy will be connected fan (one or more).When system is in circulation pattern, even in the middle of the low temperature surrounding environment, the Fan Control strategy also will make one or more fans be in on-state.In this case, under the condition of the air regulation of not handling storage battery, evaporator core may just cool off.Therefore, can operate one or more fans, and the described air that circulates, so that utilize the evaporator core and the ducted Cryogenic air around evaporator core of cooling.
All can use a suitable hysteresis or time delay for (producing) each patterns of change, between two kinds of patterns, vibrate to prevent door and fan by gate control, Fan Control, Ventilation Control.This has the negative effect that helps to reduce for the component life of door and fan, and can improve cooling effectiveness, because utilized the residue cooling power of evaporator core and air in the system pipeline.This control policy can also be eliminated the of short duration instantaneous gear change when the operating personal of vehicle switches gear.
According to battery condition, control policy need can be determined to ventilate, ventilate if desired, switch to fresh air mode then, fan is wherein connected.Whether control policy need when vehicle is in the key off-state can also be determined to ventilate.If do not need to ventilate, door can be closed, makes system be in circulation pattern, and before storage battery control plug-in unit (BCM) disconnects, can disconnect fan.Ventilate if desired, will open door, make system be in fresh air mode, and make fan be switched on cycle regular time, the plug-in unit of storage battery control then disconnects.After finishing ventilation, door is closed, and system is become circulation pattern, and fan disconnects.
The control policy of door and fan can be used for: 1) at the surrounding environment of cold, when not using the storage battery air regulation, provide the storage battery cooling; 2) by the air regulation of minimizing storage battery and the use of fan, and, optimize the saving and the battery performance of fuel, can reduce the power that charges and discharge here by stoping the work of storage battery in high temperature range; 3), can reduce the danger that water flows into during the carwash when vehicle parking, when being in neutral state, perhaps after vehicle is in the key off-state,, system is in the circulation pattern by the one or more described doors of closure.
Description of drawings
Fig. 1 is the environmental control system transparent view that the present invention is used for storage battery;
Fig. 2 is the decomposition side view that comprises the vehicle part of part environmental control system shown in Figure 1;
Fig. 3 is the scheme drawing of an explanation environmental control system part shown in Figure 1;
Fig. 4 is the scheme drawing of expression door of the present invention and Fan Control interface;
Fig. 5 is the logical flow chart of explanation battery environment control system of the present invention;
Fig. 6 is the diagram of circuit of explanation Ventilation Control logic of the present invention;
Fig. 7 is the diagram of circuit that explanation gear of the present invention and air regulation are checked logic;
Fig. 8 is the diagram of circuit of the control logic of explanation door of the present invention;
Fig. 9 is the diagram of circuit of the control logic of explanation fan of the present invention;
Figure 10 is the diagram of circuit that explanation key of the present invention disconnects the control logic of ventilating.
The specific embodiment
Fig. 1 represents that the present invention is used for the part of the environmental control system 10 of storage battery.Environmental control system 10 comprises admission port 12, and admission port 12 is located in the vehicle window 14.Fig. 2 represents the part of vehicle 16, comprising vehicle window 14 and admission port 12.The planform of admission port 12 is suitable for receiving the air from vehicle 16 exterior circumferential environment, forbids entering of water and chip simultaneously.Described a kind of such admission port among the U.S. Patent Application Serial Number No.10/605182 that on September 12nd, 2003 submitted to, reference is here also quoted this application.
When being in the first position for first 22, it promotes the motion of air between admission port 12 and storage battery 18.On the contrary, first 22 when being in the second place, it forbids the motion of air between admission port 12 and storage battery 18.Plumbing system 20 also comprises second 24, the second 24 and can move between the primary importance and the second place.Represent second 24 motion from the primary importance to the second place with directional arrow among Fig. 1.When being in the first position for second 24, its promotes air motion of 26 from storage battery 18 to air extractor duct.The planform of air extractor duct 26 helps the air flows from plumbing system 18 to the outside vehicle environment.When being in the second place for second 22, it forbids the motion of air between storage battery 18 and air extractor duct 26.Schematically represent fan 28 and plumbing system 20 concerted actions among Fig. 3, make air by plumbing system 20 and pass storage battery 18 motions.
As shown in Figure 3, admission port 12 comprises 3 parts that separate: fresh air inlet 34 is positioned at air enters plumbing system 30 from vehicle 16 outsides position; Discharge port 36; And air filter 38.Fig. 3 also expresses the second series mouth of a river 40, and it is positioned at the downstream direction of evaporator core 32.Discharge port 40 is positioned within the plumbing system 20, and the outlet of issuable any condensed water when air cooling by evaporator core 32 is provided.
Fig. 3 also illustrates air flowing access, dots the air flowing access of fresh air, represents the air flowing access of circulating air with solid line.As shown in Figure 3, fresh air enters fresh air inlet 34, and fresh air is sucked by storage battery fan 28.Storage battery fan 28 blow air, the surrounding environment that makes it pass storage battery 18 and arrive outside vehicle by air extractor duct 26.More under the certain situation, can expect for as described in all sidedly that just like following described air is around the storage battery circulation, and from surrounding environment suction fresh air.In these cases, fan 28 blow air make air pass storage battery 18, and described then air returns by evaporator core 32, and by fan 28 again blow air make it pass storage battery 18.
Fig. 4 represents first 22, second 24 and fan 28 used control interfaces in the mode of signal.Shown in Fig. 4, described environmental control system 10 also comprises a control system, and integral body is expressed as label 42.In the embodiment shown in fig. 4, this control system comprises that two controllers that separate, power transmit control module/vehicle system controller (PCM/VSC) 44, and battery control module (BCM) 46.As described in more comprehensive below in conjunction with the work of environmental control system 10, battery control module 46 is from a plurality of sensors reception inputs of integral body with label 48 expressions.Sensor 48 comprises that at least one temperature sensor and at least one are used to detect the sensor of storage battery 18 ambient air temperatures.Battery control module 46 also receives the input from fan 28, and described input can comprise such as the parameter as the fan speed.Battery control module 46 also will receive the input from door 22,24, comprising the input from the position of the expression door 22,24 of position transduser.
Power transmits the input that control module/battery control module 44 receives from least one sensor 50, the temperature of their expression vehicle 16 exterior circumferential environment.As shown in Figure 4, vehicle 16 also comprises driving device 52.Sensor 54 is determined transmission gear, and this information and power transmission control module/battery control module 44 are write to each other.Though shown in sensor 54 get in touch with driving device 52 direct communications, should be appreciated that this sensor can also basis be determined transmission gear such as the position of gear-shift lever.Power transmits control module/battery control module 44 information and battery control module 46 is write to each other, battery control module 46 utilize these information certain some or all come to determine first and second 22,24 position, and the action of definite fan 28.
Fig. 5 represents the logic flow of whole battery environment control system, and described logic is exposed and be can be used as software and stay in one or more controllers 44,46 in the battery environment control system 10.The logic of battery environment control system shown in Figure 5 is the form of flow process Figure 56.The logic of control system is initialized in step 58, and at this moment car key is connected or startup command.
In step 60, determine various parameters, comprising the temperature of surrounding air, current transmission gear state, battery temp, storage battery air themperature, the state of door, the charge condition (SOC) of storage battery.To determine also in step 60 whether storage battery 16 is in reparation pattern (R-mode).The real process that relates in the storage battery reparation pattern is known for those of ordinary skills, therefore here will not illustrate.With regard to purpose of the present invention, determine whether storage battery 16 is just enough in the reparation pattern; Such as representing this situation by high battery state of charge.
In step 60, also to determine whether to exist in the storage battery 16 any unusual, as voltage deviation, abnormality of current sensor, or battery pack is unusual.Determine though in an independent step, express various in the step 60, should be appreciated that, can carry out these deterministic processes as environmental control system 10 for any order that battery environment control effectively according to allowing environmental control system.And one or more deterministic processes of step 60 expression might take place simultaneously.
After realizing deterministic process, the logic of environmental control system is carried out the first battery environment control policy, in the step 62 this is expressed as " Ventilation Control logic ".According to the result of Ventilation Control logic, battery environment control system logic is carried out the second battery environment control policy then, in the step 64 this is expressed as " gear and air regulation are checked logic ".According to the result of gear and air regulation inspection logic, battery environment control system logic is carried out the 3rd battery environment control policy then, in the step 66 this is expressed as " control logic of door " once more.As shown in Figure 5, the control system logic loops back step 60 then, determines various parameters here, comprising the vehicle operating condition.
Fig. 6,7,8 at length illustrates the step 62 shown in Fig. 5,64,66 respectively.Go through each step below.Fig. 6 represents the Ventilation Control logic just like explanation in the step 62 among Fig. 5.As described below, the first of Ventilation Control logic 62 comprises and determines temperature independently whether battery environment needs to ventilate.According to the type of used storage battery in the car, thisly determine it to be useful.For example, conventional vehicle used lead-acid storage battery usually may send a spot of gas, and this gas may form at the near surface of storage battery.If make this gas condensation, may produce adverse influence to the storage battery surface.Therefore, the ventilation of battery environment is carried out in expectation, and the temperature of this ventilation and storage battery is irrelevant fully, and/or has nothing to do with the temperature of the surrounding air of outside vehicle.
Determine whether battery environment needs to ventilate, may comprise whether the definite storage battery of picture is in the thing of reparation state (R-mode) and so on.Determining that square frame 68 carries out such determine (R-mode=TRUE).As shown in Figure 6, if determine that storage battery is in the reparation state, then make battery environment control system 10 be in fresh air mode, referring to step 70.Under fresh air mode, at least some from the storage battery ambient air with exchange from the air of outside vehicle surrounding environment.In order to promote fresh air mode, first and second 22,24 primary importances that enter them of storage battery control plug-in unit 44 orders, and manipulation fan 28, promote air whereby from surrounding environment, make it pass through admission port 12, pass storage battery 18, and pass from air extractor duct 26.In this way, at least some exchanged at storage battery ambient air and exterior surrounding air originally.
If determine at definite square frame 68: next whether storage battery just determine to exist in storage battery 18 some unusual at definite square frame 72 not at the reparation state.Described picture voltage deviation, the abnormality of current sensor of may comprising unusually, perhaps unusual and so on the thing in the individual unit in the storage battery 18.If find to exist one or more these classes unusual, then make environmental control system 10 be in fresh air mode once more.Can be as required for 44 programmings of storage battery control plug-in unit, so that have only some unusual or some environmental control system 10 that unusually just can make to enter fresh air mode.
If determine not exist some unusual, then determine that at definite square frame 74 whether the charge condition of storage batterys is greater than first charging level of determining (SOC_vent_on) at definite square frame 72.If connect charge condition sign (SOC_mode=1) in step 76, and make environmental control system 10 enter fresh air mode.Yet,, determine that at definite square frame 78 whether the charge condition of storage batterys is less than the second predetermined charging level (SOC_vent_off) if the charge condition of storage battery is not more than the first predetermined charging level.The second predetermined charging level is set at less than the first predetermined charging level, so that between two predetermined charging levels, produce a hysteresis.This helps to guarantee that environmental control system 10 can not change rapidly back and forth between fresh air mode and circulation pattern, also will discuss to this below.
If determine the charge condition of storage batterys and be not less than the second predetermined charging level, determine again at definite square frame 80 whether the charge condition sign is connected then at definite square frame 78.If, then make environmental control system 10 enter fresh air mode, if not, then proceed Ventilation Control logic 62.If less than the second predetermined charging level, disconnect charge condition signs (SOC_mode=0) at definite frame 82 then at the charge condition of determining square frame 78 definite storage batterys.When the charge condition sign is open circuited, be exactly unnecessary with exchange from the air of outside vehicle surrounding environment from storage battery 18 ambient airs.
Proceed Ventilation Control logic 62 at definite square frame 84, determine that here whether battery temp is greater than battery ventilation temperature (T_vent_on).If not, at the ventilation sign (T_vent_mode=0) of step 86 disconnection based on temperature.Yet, if battery temperature is greater than ventilation temperature, at the ventilation sign (T_vent_mode=1) of step 88 connection based on temperature.Next, determine whether connect the same with certain the predetermined time gap at least long time (interval_vent) at definite square frame 90 based on the ventilation sign of temperature.If not, Ventilation Control logic 62 is returned step 60.Yet,, connect time-based ventilation sign (time_vent_mode=1) in step 92 if connected the same with the predetermined time gap at least long time based on the ventilation sign of temperature.In step 94, Ventilation Control logic 62 is regulated or is kept first and second 22,24 position, is in fresh air mode to keep environmental control system 10.Next determining whether square frame 96 definite time-based ventilation signs have connected the same with certain the predetermined time at least long time (time_vent).If not, Ventilation Control logic 62 is returned step 94.If then disconnect time-based ventilation sign in step 98.As shown in Figure 6, when disconnecting, withdraw from Ventilation Control logic 62, advance to gear and air regulation and check logic 64 based on the ventilation sign of temperature or time-based ventilation sign.
Fig. 7 is shown specifically gear and air regulation is checked logic 64.As shown in Figure 7, check logic, determine here whether driving device 52 stops or neutral gear at definite square frame 100 beginning gears and air regulation.Stop or neutral gear if driving device 52 is in, disconnect (Gear_mode=STOP) in step 102 gear mode flags.Next determine at definite square frame 104 whether the gear mode flags has disconnected certain predetermined time (time_delay).If not, gear and air regulation inspection logic 64 are returned step 102.If the gear mode flags has disconnected the same with certain the predetermined time at least long time, then make environmental control system 10 enter circulation pattern in step 106.Stop or during neutral, make environmental control system 10 be in circulation pattern automatically at driving device, help to guarantee that water can not enter vehicle 16 by admission port 12 or air extractor duct 26.For example, when cleaning vehicle 16, the inflow of this water of not expecting may take place.
At circulation pattern, forbid from storage battery ambient air and exchange from the air of outside vehicle surrounding environment.With reference to Fig. 1, make environmental control system 10 be in circulation pattern and comprise: make first and second 22,24 and be in their corresponding second places.This just promotes air from storage battery 18 beginning → by the evaporator core in the plumbing system 20 32 → and turn back to the circulation of storage battery.This situation schematically is shown among Fig. 3.
Return Fig. 7, if determine that at definite square frame 100 drivings device 52 do not stop or not having neutral, promptly driving device 52 is at forward direction gear or reverse gear state, then connects gear mode flags (Gear_mode=MOVE) in step 108.If determine not connect the gear mode flags at definite frame 110 in the predetermined time, this method is got back to step 108.On the contrary, if determine in the predetermined time, to connect the gear mode flags, then determine whether to use storage battery air conditioner system 30 at definite square frame 112.If make environmental control system be in circulation pattern in step 106.If do not use storage battery air conditioner system 30, then withdraw from gear and air regulation and check logic 64, advance to gate control logic 66.
Enter Fig. 8,, determine that here whether battery temperature (T_battery) is greater than certain predetermined temperature (T_fresh_on) in definite square frame 114 beginning gate control logics 66.If, at the sign (T_fresh_mode=1) of step 116 connection based on temperature.From here, determine a heal differential at definite square frame 118.This heal differential is poor between the temperature of storage battery and the vehicle 16 exterior circumferential air themperatures (T_ambient).Then, determine that whether this heal differential is greater than the second predetermined temperature (DT_bat_amb_on).If then connect heal differential sign (DT_fresh_mode=1) in step 120.Then, in step 122, make environmental control system 10 enter fresh air mode.
If determine this heal differential and be not more than the second predetermined temperature, then determine that at definite square frame 124 whether this heal differential is less than the 3rd predetermined temperature (DT_bat_amb_off) then at definite square frame 118.It is unequal being used in the second and the 3rd predetermined temperature of determining in the square frame 118 and 124 separately; A hysteresis like this, just is provided in the operation of environmental control system 10.When the fluctuating not timing of the temperature and/or the vehicle 16 exterior circumferential ambient temperatures of storage battery 18, this helps to keep the environmental control system 10 can upheaval back and forth between fresh air mode and circulation pattern.
If determine these heal differentials less than the 3rd predetermined temperature,, and make environmental control system 10 enter circulation pattern in step 128 then at step 126 break-off signal difference sign (DT_fresh_mode=0) at definite square frame 124.On the contrary, if this heal differential less than the 3rd predetermined temperature, then determines at definite square frame 130 whether the heal differential sign is connected.If make environmental control system 10 enter fresh air mode in step 122; If not, then make environmental control system 10 enter circulation pattern in step 128.
Get back to now and determine square frame 114, if the temperature of storage battery and be not more than the first predetermined temperature, then gate control logic 66 advances to determines square frame 132, and whether the temperature of determining storage battery is less than the 4th predetermined temperature.As the second and the 3rd predetermined temperature, being used in the first and the 4th predetermined temperature of determining in the square frame 114 and 132 separately is unequal each other.So just provide hysteresis for environmental control system 10.
If determine the temperature of storage batterys 18 and be not less than the 4th predetermined temperature, then determining that square frame 134 determines whether to connect the sign based on temperature at definite square frame 132.If gate control logic 66 advances to determines square frame 118; If not, then make environmental control system 10 enter circulation pattern in step 136.Get back to now and determine square frame 132, if the temperature of storage battery 18 less than the 4th predetermined temperature, makes environmental control system 10 enter circulation pattern then at the sign (T_fresh_mode=0) of step 138 disconnection based on temperature, and in step 136.
Fig. 9 represents control logic 139, and this logic can be used for optimizing the use of fan in the battery environment control system, such as the fan 28 at environmental control system 10.After execution in step 58 and 60, determining that square frame 140 begins to carry out Fan Control logic as shown in Figure 9,, determines whether environmental control system 10 is in fresh air mode here.If then connect fan in step 142.If not, next determine whether to use storage battery air conditioner system 30 at definite square frame 144.If then connect fan in step 142.
If determine not use storage battery air conditioner system 30, then next determine that at definite square frame 146 whether the temperature (T_amb) of vehicle 16 exterior circumferential environment is less than certain lower limit (T_amb_lo) at definite square frame 144.If then connect ambient temperature sign (Amb_mode=1) in step 148.From the temperature of determining storage battery 18 here whether greater than predetermined temperature, so that connect fan 28, referring to definite square frame 150.If connect fan temperature sign (T_fan_mode=1) in step 152, and connect fan 28 in step 142.If determine the temperature of storage batterys 18 and be not more than to connect the required temperature (T_fan_on) of fan at definite square frame 150, then the Fan Control logic moves to and determines square frame 154.
At definite square frame 154, the temperature of determining storage battery 18 whether less than disconnect fan 28 required pre-determine temperature (T_fan_off).If not, then determine whether to connect fan temperature sign at definite square frame 156.If then connect fan 28 in step 142.If determine that storage batterys less than disconnecting the required temperature of fan 28, then disconnect fan temperature sign (T_fan_mode=0) in step 160, and disconnect fan 28 in step 158 determining square frame 154.
Get back to now and determine square frame 146, if the temperature of surrounding air and be not less than this lower limit, then the Fan Control logic moves to and determines square frame 162, determines that here whether the temperature of surrounding air is greater than certain higher limit (T_amb_hi).If not, then determine whether to connect the ambient temperature sign at definite square frame 164.If then the Fan Control logic enters and determines square frame 150.If not, then disconnect fan 28 in step 158.Yet,, and disconnect fan 28 in step 166 if determine that at definite square frame 162 ambient temperature greater than temperature upper limit, disconnects ambient temperature sign (Amb_mode=0) in step 166.
Investigate among Fig. 9 definite square frame 150 and 154 as can be seen, whether the temperature of having determined to the Fan Control logical validity storage battery 18 in certain predetermined range of temperatures.Specifically, the upper limit of this predetermined range of temperatures is to connect fan 28 necessary temperature (T_fan_on), sees and determines person shown in the square frame 150; The lower limit of this range of temperatures is to disconnect fan 28 needed temperature (T_fan_off), sees and determines person shown in the square frame 154.If the temperature of storage battery 18 within this scope, then disconnects fan 28 in step 158, unless owing to some other reason has been connected fan temperature sign, referring to definite square frame 156.So, there is as shown in Figure 9 Fan Control logic to help to guarantee to connect fan 28 when needed, disconnect fan 28 when not required, but saving in energy whereby.
Fig. 6 describes Ventilation Control logic 62 in detail, and this Ventilation Control logic 62 is carried out when vehicle 16 operations, carries out when promptly being in " key connection " pattern at vehicle 16.Though the most frequent hope is ventilated when being in " key connection " pattern at vehicle 16, environmental control system 10 provides ventilation function when can also be in " key disconnection " pattern at vehicle 16.The control logic when vehicle 16 is in " key disconnection " pattern exactly that Figure 10 represents.When being in " key disconnection " pattern at vehicle 16, this control logic is in step 168 beginning initialization.In step 170, determine various parameters, these parameters can be done mutually seemingly with the parameter that step 60 is determined or be identical.Whether repair mode flags when definite square frame 172 determines to be in " key disconnection " pattern at vehicle 16 connects.If connect key in step 174 and disconnect the sign (Keyoff_vent_mode=1) that ventilates.In step 176, make environmental control system 10 enter fresh air mode, comprising connecting fan 28.
Make battery environment certain preset time (Vent_time) that ventilates, as determining square frame 178 those shown.Before this predetermined past time, the open circuited Ventilation Control logic of key is got back to step 176.When the time is over and done with, disconnect the open circuited ventilation sign of key (Keyoff_vent_mode=0) in step 180, then, determine whether vehicle 16 has been in the key on-state, referring to definite square frame 182.If not, in step 184 environmental control system 10 is designed to circulation pattern.Then, in step 186, reduce the power of battery control module 46.If determine that at definite square frame 182 vehicle 16 has been in the key on-state, then carry out gate control logic 66 and Fan Control logical one 39.
Get back to now and determine square frame 172, do not connect, next determine whether to exist some storage battery unusual at definite square frame 188 if determine when being in " key disconnection " pattern at vehicle 16, to repair sign.If exist, key disconnects the Ventilation Control logic and turns back to step 174.Yet,, determine that at definite frame 190 whether battery state of charge is greater than start needed certain the predetermined charge condition (SOC_keyoff_vent) that ventilates when vehicle 16 is in the key off-state if it is unusual not detect storage battery.If key disconnects the Ventilation Control logic and gets back to step 174 once more.If not, then determine that at definite square frame 192 whether battery temp is greater than certain predetermined ventilation temperature (T_keyoff_vent) when vehicle 16 is in the key off-state.If key disconnects the Ventilation Control logic and gets back to step 174 again.If not, in step 186, reduce the power of battery control module 46.
Implement best mode of the present invention though described in detail, familiar various equivalent modifications of the present invention will be understood that can implement various replacement design and the embodiment of the present invention that limited by following claims in addition.
Claims (13)
1. method that is used to control the in-vehicle secondary battery environment, described method comprises the steps:
Determine temperature independently whether battery environment needs to ventilate;
When definite battery environment need be ventilated, at least some air of storage battery surrounding environment and the air of outside vehicle surrounding environment exchanged.
2. the method for claim 1, wherein, the step whether described definite battery environment needs to ventilate comprises following at least a definite: determine whether storage battery is in the reparation state, whether determine to exist in the storage battery one or more unusual, whether the charge condition of determining storage battery is greater than the first predetermined charging level.
3. method as claimed in claim 2 wherein, also comprises:
During greater than the first predetermined charging level, at least some air around the storage battery and the air of outside vehicle surrounding environment exchange at definite battery state of charge.
4. the method for claim 1, wherein described vehicle comprises driving device, and described method also comprises the steps:
Determine the gear of the driving device of vehicle; With
Determining that driving device is in stops or neutral state, and battery environment is not when needing to ventilate, the air inerchange of forbidding storage battery ambient air and outside vehicle surrounding environment.
5. the method for claim 1, wherein described vehicle also comprises the storage battery air conditioner system, and described method also comprises the steps:
Determine that whether the storage battery air conditioner system is cooling accumulator and working;
Be in the forward direction gear or retreat gear at definite driving device, the storage battery air conditioner system is a cooling accumulator and operating, and when battery environment does not need to ventilate, forbids the air inerchange of storage battery ambient air and outside vehicle surrounding environment.
6. method as claimed in claim 5 wherein, also comprises the steps:
Determine the temperature of storage battery;
Determine the temperature of outside vehicle surrounding environment;
Determine first heal differential, this first heal differential is defined as poor between the temperature of battery temp and outside vehicle surrounding environment;
At definite battery temp greater than the first predetermined temperature, the first heal differential big second predetermined temperature, driving device is in the forward direction gear or retreats gear, and the storage battery air conditioner system is when making that storage battery is cold work, and the air of at least some air around the storage battery and vehicle surrounding environment outward exchanges.
7. the method for claim 1, wherein also comprise the steps:
Determine whether vehicle is in the key Disconnected mode;
Need ventilate and vehicle when being in the key Disconnected mode in definite battery environment, at least some air around the storage battery and the air of outside vehicle surrounding environment exchange;
When determining to have experienced predetermined time, the air inerchange of forbidding storage battery ambient air and outside vehicle surrounding environment.
8. method that is used to control the in-vehicle secondary battery environment, described vehicle comprise driving device and are used for the air conditioner system of storage battery that described method comprises the steps:
Carry out the first battery environment control policy, comprise and determine at least one vehicle operating condition;
When the execution of the first battery environment control policy shows that battery environment need be ventilated, make the air draft of battery environment and outside vehicle surrounding environment;
When the execution of the first battery environment control policy does not show that battery environment need be ventilated, carry out the second battery environment control policy, the second battery environment control policy comprises the gear of determining current driving device, and whether working in these two at least one of definite storage battery air conditioner system;
When the second battery environment control policy represented prohibit the air inerchange of showing storage battery ambient air and outside vehicle surrounding environment, air is circulation around storage battery;
When the second battery environment control policy does not represent prohibit the air inerchange of showing storage battery ambient air and outside vehicle surrounding environment, carry out the 3rd battery environment control policy, the execution of the 3rd battery environment control policy comprises: the temperature of determining battery temperature and outside vehicle environment, and the temperature according to battery temperature and outside vehicle environment realizes battery environment control at least in part.
9. method as claimed in claim 8, wherein, described the 3rd battery environment control policy also comprises:
Determine the heal differential between the temperature of battery temp and outside vehicle environment; And
During greater than the second predetermined temperature, use air cooling battery environment greater than the 3rd predetermined temperature and described heal differential at battery temp from the outside vehicle environment.
10. method as claimed in claim 8, wherein, the described condition of service of determining at least one vehicle comprises following at least a in determining: determine whether storage battery is in the reparation state, whether determine to exist in the storage battery one or more unusual, whether the charge condition of determining storage battery is greater than the first predetermined charging level.
11. method as claimed in claim 10, wherein, the described execution first battery environment control policy shows: during greater than the first predetermined charging level, battery environment needs to ventilate at the charge condition of storage battery.
12. method as claimed in claim 10, wherein, the described execution second battery environment control policy also comprises the gear of determining current driving device, is at definite driving device to stop or during neutral the circulating storage battery ambient air.
13. method as claimed in claim 10, wherein, the described execution second battery environment control policy also comprises determines whether the storage battery air conditioner system is that cooling accumulator is worked, at definite storage battery air conditioner system is cooling accumulator when working, the circulating storage battery ambient air.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52199504P | 2004-07-30 | 2004-07-30 | |
| US60/521,995 | 2004-07-30 | ||
| US10/906,671 | 2005-03-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1880117A true CN1880117A (en) | 2006-12-20 |
| CN100526106C CN100526106C (en) | 2009-08-12 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100764463A Expired - Fee Related CN100526106C (en) | 2004-07-30 | 2005-06-15 | Environment control system and method for vehicle-mounted accumulator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006050892A (en) |
| CN (1) | CN100526106C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113500945A (en) * | 2021-07-13 | 2021-10-15 | 中联重科股份有限公司 | Battery intelligent security system and mining dump truck |
| CN113594494A (en) * | 2021-06-18 | 2021-11-02 | 东风汽车集团股份有限公司 | Fuel cell heat dissipation device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6624084B2 (en) * | 2017-01-12 | 2019-12-25 | トヨタ自動車株式会社 | Electric vehicle |
| CN112103593A (en) * | 2019-06-17 | 2020-12-18 | 比亚迪股份有限公司 | Vehicle thermal management method and device, vehicle and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4126726B2 (en) * | 1996-04-19 | 2008-07-30 | 日産自動車株式会社 | Battery cooling system for electric vehicles |
| JP3240973B2 (en) * | 1997-03-05 | 2001-12-25 | トヨタ自動車株式会社 | Battery cooling system for vehicles |
| JP3506884B2 (en) * | 1997-09-02 | 2004-03-15 | ダイハツ工業株式会社 | Battery cooling structure for electric vehicles |
| JPH11122829A (en) * | 1997-10-15 | 1999-04-30 | Yamaha Motor Co Ltd | Charging equipment for battery |
| JP4081856B2 (en) * | 1998-05-14 | 2008-04-30 | 日産自動車株式会社 | Battery pack cooling system |
| JP4306085B2 (en) * | 1999-05-26 | 2009-07-29 | トヨタ自動車株式会社 | Vehicle equipped with fuel cell and control method thereof |
| JP2001102100A (en) * | 1999-09-29 | 2001-04-13 | Fuji Heavy Ind Ltd | Cell temperature control apparatus for electric vehicle |
| JP3969254B2 (en) * | 2001-10-29 | 2007-09-05 | 株式会社デンソー | Battery temperature management device |
| JP4121793B2 (en) * | 2002-07-15 | 2008-07-23 | 三洋電機株式会社 | Power supply for vehicle |
-
2005
- 2005-06-15 CN CNB2005100764463A patent/CN100526106C/en not_active Expired - Fee Related
- 2005-08-01 JP JP2005223147A patent/JP2006050892A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113594494A (en) * | 2021-06-18 | 2021-11-02 | 东风汽车集团股份有限公司 | Fuel cell heat dissipation device |
| CN113594494B (en) * | 2021-06-18 | 2022-06-03 | 东风汽车集团股份有限公司 | Fuel cell heat dissipation device |
| CN113500945A (en) * | 2021-07-13 | 2021-10-15 | 中联重科股份有限公司 | Battery intelligent security system and mining dump truck |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006050892A (en) | 2006-02-16 |
| CN100526106C (en) | 2009-08-12 |
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