• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1 1ABSTRACT A battery backup system for a mobile telematic system comprises amain power input (10), arranged to provide power to the mobile telematicsystem (14), a first battery (16'), arranged to provide a first battery input, andmeans (12) for monitoring the main power input (10) and, when the mainpower input falls below a first predetermined value, causing the first battery(16') input to provide power to the mobile telematic system (14). The systemfurther comprises a second battery (16"), arranged to provide a secondbattery input, and means (19) for monitoring the first and second batteryinputs and, when the first battery input falls below a second predeterminedvalue, causing the second battery (16") to provide power to the mobiletelematic system and, when the second battery input falls below a thirdpredetermined value, causing the remainder of the first battery (16') toprovide power to the mobile telematic system. The first battery (16') is arechargeable battery and the second battery (16") other one is non-rechargeable. Elected for publication: Fig. 2
    公开号:SE1250949A1
    申请号:SE1250949
    申请日:2012-08-23
    公开日:2014-02-24
    发明作者:Christian Sahlen；Mark Willerton
    申请人:Actia Nordic Ab；
    IPC主号:
    专利说明:

    BATTERY BACKUP SYSTEM AND METHOD Technical Field The present invention relates to a battery backup system. The systemfinds particular use in the automotive sector, as battery backup for emergencysystems, such as telematic systems in vehicles, such as cars, trucks, busses,tractors or other heavy vehicles.
    BackgroundTelematic systems are becoming of increasing interest in the automotive sector. Systems providing for vehicle tracking, emergency calls,remote diagnosis and to some extent also remote control of certain functionsof the vehicle, are already available on the market. ln particular emergency and emergency related functions, such asvehicle tracking and emergency calls, need to be available at all times inorder to remain effective, also when the vehicle is parked for an extendedperiod of time or when the main power supply, such as the main battery, isdisconnected or damaged.
    Hence, it is known to provide a battery backup system, where a controlcircuit is used to monitor the power supply from the main battery and switch toa backup battery in case the power from the main battery is lost or falls belowa predetermined level. Such a backup battery has to meet certain criteria,which may be the available energy, given by the formula E = %CV2, where Eis energy, C is charge and V is voltage. ln such a system, the backup batterymay be a rechargeable or a non-rechargeable battery. Disadvantages ofrechargeable batteries include the limited ability to operate over a largetemperature range and the reduction in time of the capacity to store energy. Adisadvantage of non-rechargeable batteries is that they are single useproducts, and thus may have to be replaced in case the main battery hasbeen disconnected for a while.
    Hence, there is a need for an improved battery backup system.
    SummaryAn objective of the present disclosure is to provide a mobile telematic system with an improved battery backup system. A particular object is toprovide a battery backup system which is capable of meeting the expectedrequirements of future |egis|ation but at the same time, to provide a systemwhich copes sufficiently with real world events. The invention combines non-rechargeable and rechargeable battery technologies to achieve these goals.The combination serves to solve the shortcomings when only one batterytechnology is used (as described in the section 'Background'). Therechargeable battery copes with the real world events such as removal of themain power input from the vehicle and provides a limited amount of energy tothe system for critical events. The non-rechargeable battery providessufficient energy to support the system during the remainder of a criticalevent, therefore allowing fulfillment of |egis|ation. The invention is defined bythe appended independent claims. Embodiments are set forth in thedependent claims, in the following description and in the drawings.
    According to a first aspect, there is provided a mobile telematic system,comprising a main power input, arranged to provide power to the mobiletelematic system, a first battery, arranged to provide a first battery input, andmeans for monitoring the main power input and, when the main power inputfalls below a first predetermined value, causing the first battery input toprovide power to the mobile telematic system. The first battery is arechargeable battery and the second battery is a non-rechargeable battery.The system comprises a second battery, arranged to provide a secondbattery input, and battery control means, adapted for monitoring the first andsecond battery inputs. The battery control means is arranged to: when thefirst battery input falls below a second predetermined value, cause the secondbattery to provide power to the mobile telematic system and, when thesecond battery input falls below a third predetermined value, cause theremainder of the first battery to provide power to the mobile telematic system.
    The system thus comprises a main power input, arranged to providepower to the mobile telematic system, a first battery which is rechargeableand a second battery which is non-rechargeable. The system further 3 comprises a means of monitoring the voltage of the main power input andcauses the first (rechargeable) battery to provide power to the mobiletelematic system when the voltage on the main power input falls to a levelwhich cannot support correct system operation. The system further comprisesa means of monitoring the voltage of the first battery and causes the second(rechargeable) battery to provide power to the mobile telematic system whenthe voltage on the first battery falls to a level which may cause damage(capacity loss) in the first battery. The system further comprises a means ofmonitoring the voltage of the second battery and causes the first battery toagain provide power to the mobile telematic system using its remainingenergy.
    The “main power input” may be an input from a main battery or agenerator.
    The term “battery” is understood as a device for storing electric energy.The battery may be formed of one or more cells.
    The term “chargeable” implies that the battery is of a type which iseffectively rechargeable, i.e. can be operated as a rechargeable battery.
    The term “non-rechargeable” implies that the battery is of a type whichcan or should not be subjected to any effective recharging.
    For example, the first predetermined value may be based on aminimum operating voltage (“critical voltage” or “reset threshold”) for therelevant electronic circuit, and on a factor which may be arbitrarily set, suchas e.g. a percentage (e.g. adding 0.5-10%) of this minimum voltage level.Hence, the first predetermined value may e.g. be 101% of the minimumoperating voltage.
    With such a system, real world events which may occur often but whichrequire little energy are supported by the rechargeable battery which can bereplenished. On the other hand, critical events that occur more seldom butwhich require more energy are supported first by the rechargeable batteryand thereafter by the non-rechargeable battery. lf such a critical event is solong in duration that the non-rechargeable battery becomes depleted (andtherefore requires replacement), the rechargeable battery is allowed tosupport system operation beyond its critical voltage level (and therefore also needs replacement) until depleted.
    The second predetermined value may be determined as a function of avalue at which the first battery is expected to become permanently damaged.
    For example, the second predetermined value may be based on avoltage level (which is battery-specific and normally provided by the batterymanufacturer) and on a factor which may be arbitrarily set, such as e.g. apercentage (e.g. adding 0.5-10%) of this minimum voltage level. Hence, thesecond predetermined value may e.g. be 101% of the minimum voltage level.
    The third predetermined value may be determined as a function of avalue at which the mobile telematic system cannot function.
    For example, the third predetermined value may be based on aminimum operating voltage (“critical voltage” or “reset threshold”) for therelevant electronic circut, and on a factor which may be arbitrarily set, such ase.g. a percentage (e.g. adding 0.5-10%) of this minimum voltage level.Hence, the third predetermined value may e.g. be 101% of the minimumoperating voltage.
    The voltages based on which the first, second and third predeterminedvalues are provided may, but need not, be different from each other.
    The main power input monitoring means may comprise a first voltagemonitor and a first switch.
    The first battery input monitoring means comprises a second voltagemonitor and a second switch.
    According to a third aspect, there is provided a method for providingpower to a mobile telematic system. The method comprises providing, duringnormal operation, power to the mobile telematic system from a main powerinput, monitoring the main power input, and when the main power input fallsbelow a first predetermined value, causing a first battery input to providepower to the mobile telematic system. The method further comprisesmonitoring the first battery input, and when the first battery input falls below asecond predetermined value, causing a second battery to provide power tothe mobile telematic system. The method further comprises monitoring thesecond battery input, and when the second battery input falls below a third 5 predetermined value, causing the first battery to provide power to the mobiletelematic system using its remaining energy.
    The first battery is a rechargeable battery and the second battery is anon-rechargeable battery.
    The second predetermined value may be determined as a function of avalue at which the first battery is expected to become permanently damaged.
    The thrid predetermined value may be determined as a function of avalue at which the mobile telematic system cannot function.
    Brief Description of the Drawinqs Fig. 1 is a schematic diagram of a prior art battery backup system.
    Fig. 2 is a schematic diagram of a battery backup system according tothe present disclosure.
    Description of Embodiments Fig. 1 illustrates a battery backup system 1 according to the prior art.The system comprises a main power input 10, which may be provided by abattery (e.g. 12 V or 24 V) and/or a mains connection. ln a specificembodiment, the main power input may be in the form of a KL30 standardinput, which is generally used in automobiles.
    The main power input 10 is connected via an input protection 11 to amonitoring device 12. The input protection 11 may be arranged to suppressovervoltages or reverse voltages, etc. The monitoring device 12 monitors theinput 10, and controls a switch 13, which is arranged to control which powersource is being used. Solid lines represent power connections and dashedlines represent control connections.
    The output from the switch 13 is supplied to the system 14 which isbeing powered by the battery backup system 1. The output may be suppliedvia one or more voltage regulators.
    The system 14 receiving the output from the switch 13 may be atelematic system, such as a vehicle tracking system, emergency call system,remote diagnosis system and/or a remote control system. 6 The voltage provided by the battery backup input 16 may be convertedand/or stabilized in a voltage converter and/or regulator 15. The voltageconverter and/or regulator 15 can be switched to the inactive state by themonitoring device 12 when the battery backup input 16 is not used. This cansave unnecessary consumption of energy from the vackup battery input 16. Acontinuous (e.g. uninterrupted) supply 17 from the backup battery 16 may beprovided in the event that the system 14 being powered so requires.
    During operation, the monitoring device 12 may e.g. monitor thevoltage level of the input 10, and if a critical level is reached, cause the switch13 to switch from main power input 10 to battery backup input 16.
    The battery 16 may be a rechargeable battery, composed of one ormore battery cells which are connected in series and/or in parallel; or a non-rechargeable battery, composed of one or more battery cells which areconnected in series and/or in parallel.
    Referring to Fig. 2, the battery backup system 1' according to thepresent invention will now be described. Components having the samefunction as those of Fig. 1 are given the same reference numerals and will notbe further explained. ln Fig. 2, the battery backup input 16 has been replaced for a pair ofbatteries, including a first battery 16' and a second battery 16", a secondswitch 18 and a battery backup monitor 19.
    The first battery 16' is a rechargeable battery and the second battery16" is a non-rechargeable battery. The battery backup monitor 19 is arrangedto monitor the voltage of the first battery 16' and to cause the second switch18 to switch to the second battery 16" in the event that the voltage of the firstbattery 16' reaches an intermediate level.
    This intermediate level is typically battery-specific and provided as abasic battery specification by the battery manufacturer. The switching maytake place at this minimum voltage level or at a level determined as afunction, e.g. a percentage of this voltage level.
    The battery backup monitor 19 is further arranged to monitor thevoltage of the second battery 16" and to cause the second switch 18 to switch 7 back to the first battery 16' in the event that the voltage of the second battery16" reaches a critical level.
    The critical level of the second battery is typically determined as acritical voltage level of the circuit that is to be powered. Such a level may bedetermined as a minimum voltage level at which the circuit is able to function.Such levels are also provided as a part of the specification of the componentsforming parts of the electric circuit.
    The battery backup monitor 19 may be operable only when the batterybackup is activated, i.e. when the first switch 13 is at position B.
    The battery backup of Fig. 2 may operate as follows. During normaloperation of the system, where the main power input 10 is active, the firstbattery 16' may be charged. Control of the charging may be achieved by aseparate system, which is not further described herein. ln the alternative, thecharging may be controlled by a controller which is integrated with the batterybackup monitor 19 and/or with the main input monitor 12.
    Upon interruption or reduction of the main power input 10, the maininput monitor 12 causes the first switch 13 to switch from position A toposition B, thus activating the battery backup and causing it to supply powerfrom the first battery 16' to the system 14. This is achieved since the secondswitch 18 is at its default position A.
    Upon interruption or reduction of the input from the first battery 16', thebattery backup controller causes the second switch 18 to change to itssecond position B, thus activating the second battery 16", which is a non-rechargeable battery.
    When the second battery 16" reaches the circuit's critical voltage level,the battery monitor 19 switches switch 18 back to position A so that theremainder of the first battery 16' can be used.
    Hence, the system comprises a first battery 16', which is beingrecharged and which operates as the first backup battery, and a second,nonrechargeable battery 16", which operates as the second backup battery.
    The monitors 12, 19 may be integrated with each other to form a singlecomponent, or provided as separate components. ln any event, the 8 components may be provided in the form of an electronic circuit or as aprogrammable device.
    The switches 13, 18 may be provided in the form of transistor basedswitches or as mechanical switches, such as a relay.
    Batteries, monitors, switches and any other electronic components,circuits or software needed to implement the disclosure above are deemed tobe per se known to the ski|ed person and thus require no further description.
    Recharging of the first battery 16' may be performed by a separatecircuit or in a circuit which is integrated with the control circuit, of which themonitor 18 forms part.
    权利要求:
    Claims (8)
    [1] 1. A mobile telematic system having a battery backup system,comprising: a main power input (10), arranged to provide power to the mobiletelematic system (14), a first battery (16'), arranged to provide a first battery input, and means (12) for monitoring the main power input (10) and, when themain power input falls below a first predetermined value, causing the firstbattery (16') input to provide power to the mobile telematic system (14), wherein the first battery is a rechargeable battery and the secondbattery is a non-rechargeable battery, characterized by a second battery (16"), arranged to provide a second battery input, and battery control means, adapted for monitoring the first and secondbattery inputs, wherein the battery control means is arranged to: when the first battery input falls below a second predetermined value,cause the second battery (16") to provide power to the mobile telematicsystem and, when the second battery input falls below a third predetermined value,cause the remainder of the first battery (16') to provide power to the mobiletelematic system.
    [2] 2. The mobile telematic system as claimed in claim 1, wherein thesecond predetermined value is determined as a function of a value at whichthe first battery is expected to become permanently damaged.
    [3] 3. The mobile telematic system as claimed in claim 1 or 2, wherein thethrid predetermined value is determined as a function of a value at which themobile telematic system cannot function.
    [4] 4. The mobile telematic system as claimed in any one of the precedingclaims, wherein said main power input monitoring means comprises a firstvoltage monitor (12) and a first switch (13).
    [5] 5. The mobile telematic system as claimed in any one of the precedingclaims, wherein said battery control means comprises a second voltagemonitor (19) and a second switch (18).
    [6] 6. A method for providing power to a mobile telematic system,comprising: providing, during normal operation, power to the mobile telematicsystem from a main power input, monitoring the main power input, and when the main power input falls below a first predetermined value,causing a first battery input to provide power to the mobile telematic system, wherein the first battery is a rechargeable battery and the secondbattery is a non-rechargeable battery, characterized by monitoring the first battery input, and when the first battery input falls below a second predetermined value,causing a second battery to provide power to the mobile telematic system, monitoring the second battery input, and when the second battery input falls below a third predetermined value,causing the remainder of the first battery (16') to provide power to the mobiletelematic system.
    [7] 7. The method as claimed in claim 6, wherein the secondpredetermined value is determined as a function of a value at which the firstbattery is expected do become permanently damaged.
    [8] 8. The method as claimed in claim 6 or 7, wherein the thridpredetermined value is determined as a function of a value at which themobile telematic system cannot function.
    类似技术:
    公开号 | 公开日 | 专利标题
    US9780601B2|2017-10-03|Battery assisted power
    US7795842B2|2010-09-14|Adjustable cut-off voltage for mobile device battery
    US9929590B2|2018-03-27|Dual input RTC supply generation with replica power path and autonomous mode of operation from the system supply
    JP4783759B2|2011-09-28|Battery management system and battery management method
    JP4967162B2|2012-07-04|Secondary battery pack
    JP6090912B2|2017-03-08|Power storage system and method for controlling power storage device
    JP2009183139A|2009-08-13|Electronic system for battery
    US9825478B2|2017-11-21|Method for supplying power to a load within a portable electronic device
    JP4291629B2|2009-07-08|Battery device
    JP2012023802A|2012-02-02|Energy storage device
    US20150123470A1|2015-05-07|Electrical equipment power manager for vehicle battery protection
    KR20160047161A|2016-05-02|Electric wheelchair and Remote accident monitoring system using the same
    SE536621C2|2014-04-08|Battery backup system and procedure
    RU2567930C2|2015-11-10|Method of load power supply by direct current in self-contained system of power supply of space vehicle
    US20150194827A1|2015-07-09|Information processing device including battery and charging method of battery
    US20190148955A1|2019-05-16|Power supply device and power supply method
    RU2535301C2|2014-12-10|Method to control autonomous system of spacecraft power supply
    KR102131986B1|2020-07-08|Overcharge prevention apparatus of battery
    JP2007135362A|2007-05-31|Mobile terminal device
    JP2013055849A|2013-03-21|Power supply device for secondary cell and on-vehicle device
    JP2012117935A|2012-06-21|Battery monitoring device
    TW201717519A|2017-05-16|Apparatus and method for instant on ability
    KR20080104832A|2008-12-03|Inverter circuit module with built in battery management system and apparatus for control thereof
    CN112928798B|2022-02-01|Electric quantity control method and device of energy storage equipment and energy storage equipment
    US20180212444A1|2018-07-26|Battery module and battery system having the same
    同族专利:
    公开号 | 公开日
    EP2701270A3|2016-08-03|
    SE536621C2|2014-04-08|
    EP2701270A2|2014-02-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4009051A|1976-02-10|1977-02-22|General Solar Power Corporation|Solar power pack apparatus|
    US4851756A|1987-01-08|1989-07-25|Rayovac Corporation|Primary-secondary hybrid battery|
    US7956490B2|2009-09-16|2011-06-07|Jack Sotnikow|Battery backup for vehicle emergency communicator|WO2016137482A1|2015-02-27|2016-09-01|Hewlett Packard Enterprise Development Lp|Auxiliary power source based on utilization|
    FR3105630A1|2019-12-23|2021-06-25|Traxens|FEEDING SYSTEM OF A CONTAINER TRACER BOX|
    法律状态:
    2019-04-02| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    SE1250949A|SE536621C2|2012-08-23|2012-08-23|Battery backup system and procedure|SE1250949A| SE536621C2|2012-08-23|2012-08-23|Battery backup system and procedure|
    EP13179586.6A| EP2701270A3|2012-08-23|2013-08-07|Battery backup system and method|
    [返回顶部]