JP2012228074A - Vehicle control system and battery pack - Google Patents

Vehicle control system and battery pack Download PDF

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JP2012228074A
JP2012228074A JP2011093860A JP2011093860A JP2012228074A JP 2012228074 A JP2012228074 A JP 2012228074A JP 2011093860 A JP2011093860 A JP 2011093860A JP 2011093860 A JP2011093860 A JP 2011093860A JP 2012228074 A JP2012228074 A JP 2012228074A
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vehicle
battery
battery pack
memory
information
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Ryosuke Koseki
亮介 小関
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Toyota Industries Corp
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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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle control system, which is compatible with exchange of a battery pack, and to provide the battery pack.SOLUTION: A battery pack 10 has a memory installed-in-battery-pack 13, which memorizes information showing states of secondary batteries 12-1 to 12-n. When a vehicle starts running, a power management ECU 20 reads out information from the memory installed-in-battery-pack 13 and controls the secondary batteries 12-1 to 12-n on the bases of the information. When the vehicle ends the running, the power management ECU 20 backs up the latest information to the memory installed-in-battery-pack 13.

Description

本発明は、電気自動車やハイブリッドカー等、駆動に電動機（モーター）を用いる車両及び当該車両に用いる電池パックに関する。   The present invention relates to a vehicle using an electric motor (motor) for driving, such as an electric vehicle or a hybrid car, and a battery pack used for the vehicle.

現在、充電して繰り返し使用可能な２次電池は様々な機器に搭載されて、用いられている。
２次電池は、その使用において充放電を繰り返してゆくとだんだん劣化してゆき、充電量が小さくなってゆく。 Currently, secondary batteries that can be charged and used repeatedly are mounted and used in various devices.
The secondary battery gradually deteriorates as it is repeatedly charged and discharged during use, and the amount of charge becomes smaller.

これに対処するため、２次電池を搭載する機器が２次電池の状態をモニターしながら、制御する様々な方法が提案されている。
例えば特許文献１には、２次電池を搭載する機器が、各２次電池の電圧を個々にサンプリングし、この値に基づいて電池状態を測定する構成が開示されている。 In order to cope with this, various methods have been proposed in which a device on which a secondary battery is mounted is controlled while monitoring the state of the secondary battery.
For example, Patent Document 1 discloses a configuration in which a device equipped with a secondary battery samples the voltage of each secondary battery individually and measures the battery state based on this value.

また特許文献２には、２次電池を充電する充電器が２次電池を搭載する電池パックのメモリから充電回数を読み出し、充電回数に応じたモードによって充電を行う構成が開示されている。   Patent Document 2 discloses a configuration in which a charger for charging a secondary battery reads out the number of times of charging from a memory of a battery pack on which the secondary battery is mounted, and performs charging in a mode corresponding to the number of times of charging.

特開２０１０−８１６８３号公報JP 2010-81683 A 特開２００８−２４５４８０号公報JP 2008-245480 A

２次電池を搭載している機器として、電気自動車やハイブリッドカー等、電気による駆動力を有する車両（以下電気駆動車両という）がある。電気駆動車両では、走行中に搭載された２次電池の状態をモニターしながら、例えば蓄電残量が少なくなるとブレーキ回生を使ったりガソリンエンジンを駆動して発電を行って充電を行う等、の車両の制御を行っている。またこれらの制御を行うのに用いる情報をメモリに記憶し、このメモリ内容は走行中に更新されてゆく。   As a device equipped with a secondary battery, there is a vehicle having an electric driving force (hereinafter referred to as an electric driving vehicle) such as an electric vehicle or a hybrid car. In an electrically driven vehicle, while monitoring the state of a secondary battery mounted while traveling, for example, when the remaining amount of power storage decreases, the vehicle uses a brake regeneration or drives a gasoline engine to generate electricity and charge it. Control is performed. In addition, information used for performing these controls is stored in a memory, and the contents of the memory are updated while traveling.

図４に一般的な電気駆動車両１００に搭載されている２次電池１１２−１〜１１２−ｎと、その車両制御システムを示す。
電気駆動車両１００に搭載される２次電池１１２は、複数の２次電池１１２−１〜１１２−ｎとこれらを制御する電池監視装置を筐体内に収容してこれを電池パック１１０として、車両１００から脱着可能なような形式で搭載されている。そして、車両に搭載されているパワーマネジメントＥＣＵ１２０内の演算装置１２１は、電池監視装置１１１から通知される各２次電池１１２−１〜１１２−ｎの状態情報（温度情報、開放電圧(ＯＣＶ：Open circuit voltage)等）と、メモリ１２２内に記憶されている情報から２次電池１１２−１〜１１２−ｎ残容量（ＳＯＣ：State of Charge）の推定値を求める。そしてパワーマネジメントＥＣＵ１２０の演算装置１２１は、このＳＯＣの推定値に基づいて、各２次電池１１２−１〜１１２−ｎのＯＮ／ＯＦＦを切り替えるリレー１３０及び昇圧回路１４０を制御する。またこのとき、演算装置１２１は、電池監視装置１１１から通知される情報に基づいて、メモリ１２２内の情報を更新しその値を更新してゆく。 FIG. 4 shows secondary batteries 112-1 to 112-n mounted on a general electric drive vehicle 100 and a vehicle control system thereof.
The secondary battery 112 mounted on the electrically driven vehicle 100 includes a plurality of secondary batteries 112-1 to 112-n and a battery monitoring device that controls the secondary batteries 112-1 to 112-n in a casing, which is used as a battery pack 110. It is installed in a form that can be detached from the. Then, the arithmetic device 121 in the power management ECU 120 mounted on the vehicle has state information (temperature information, open voltage (OCV: Open)) of each of the secondary batteries 112-1 to 112-n notified from the battery monitoring device 111. circuit voltage) and the like and the information stored in the memory 122, the estimated values of the secondary batteries 112-1 to 112-n remaining capacity (SOC: State of Charge) are obtained. The arithmetic unit 121 of the power management ECU 120 controls the relay 130 and the booster circuit 140 that switch ON / OFF of the secondary batteries 112-1 to 112-n based on the estimated value of the SOC. At this time, the arithmetic device 121 updates the information in the memory 122 and updates the value based on the information notified from the battery monitoring device 111.

このように、電気駆動車両１００の走行と共にメモリ１２２内の情報は更新され、学習されてゆく。
しかし、これらの電池パック１１０を搭載している電気駆動車両１００は、電池パックを交換することは考慮されていない。したがって、電気駆動車両１００に搭載さている電池パック１１０が交換されると、これまで学習してきたメモリ１２２内の情報は使用できなくなる。したがって新しい電池パック１１０内の２次電池１１２−１〜１１２−ｎに対する制御は、電池パック１１０交換後、ある程度の学習期間を必要とする。 In this way, information in the memory 122 is updated and learned as the electric drive vehicle 100 travels.
However, the electric drive vehicle 100 on which these battery packs 110 are mounted is not considered to replace the battery pack. Therefore, when the battery pack 110 mounted on the electrically driven vehicle 100 is replaced, the information in the memory 122 learned so far cannot be used. Therefore, the control for the secondary batteries 112-1 to 112-n in the new battery pack 110 requires a certain learning period after the battery pack 110 is replaced.

そこで本発明は、電池パック１１０の交換にも対応した車両制御システム及び電池パックを提供することを課題とする。   Accordingly, an object of the present invention is to provide a vehicle control system and a battery pack that can also be used for replacing the battery pack 110.

本車両制御システムは、駆動に電動機を用いる車両に搭載されている２次電池の制御を行う車両制御システムにおいて、前記２次電池と、更新可能な電池パック搭載メモリとを備え、前記車両から脱着可能な電池パックと、演算装置とメモリを備え、当該演算装置は、前記車両が走行を開始するとき、前記電池パック搭載メモリ内の情報を前記メモリに読み込み、当該車両の走行中に当該メモリ内の情報を更新し、当該車両が走行を終了したときに当該メモリ内の情報を前記電池パック搭載メモリに転送する、ことを特徴とする。   The vehicle control system is a vehicle control system for controlling a secondary battery mounted on a vehicle that uses an electric motor for driving, and includes the secondary battery and an updatable battery pack mounted memory, and is attached to and detached from the vehicle. A battery pack, a computing device, and a memory, and the computing device reads the information in the memory installed in the battery pack into the memory when the vehicle starts running, and stores the information in the memory during the running of the vehicle. This information is updated, and when the vehicle finishes traveling, the information in the memory is transferred to the battery pack mounted memory.

また本電池パックは、駆動に電動機を用いる車両で用いられる２次電池を搭載した、前記車両から脱着可能な電池パックにおいて、更新可能な電池パック搭載メモリを備え、前記車両が走行を開始するとき、当該電池パック搭載メモリに記憶されている情報を前記車両側に送り、前記車両が走行を終了するとき当該車両から送られてきた情報に基づいて前記電池パック搭載メモリ内の情報を更新する、ことを特徴とする。   The battery pack is equipped with a rechargeable battery pack memory that is mounted in a battery pack that is detachable from the vehicle and includes a secondary battery used in a vehicle that uses an electric motor for driving, and when the vehicle starts running The information stored in the battery pack mounted memory is sent to the vehicle side, and the information in the battery pack mounted memory is updated based on the information sent from the vehicle when the vehicle finishes traveling. It is characterized by that.

本発明によれば、車両から電池パックを交換してもその電池パック内の２次電池固有の情報を車両に教示できる。
よって電池パックを交換しても、引き続き２次電池に対する制御を行うことができる。 According to the present invention, even if the battery pack is replaced from the vehicle, information specific to the secondary battery in the battery pack can be taught to the vehicle.
Therefore, even if the battery pack is replaced, the secondary battery can be continuously controlled.

本実施形態における車両制御システムの構成を示す図である。It is a figure which shows the structure of the vehicle control system in this embodiment. ２次電池の温度及びＯＣＶとＳＯＣの関係を模式的に表した図である。It is the figure which represented typically the temperature of a secondary battery, and the relationship between OCV and SOC. 図２のグラフを電池特性パラメータマップとして表した図である。It is the figure which represented the graph of FIG. 2 as a battery characteristic parameter map. 一般的な車両制御システムの構成を示す図である。It is a figure which shows the structure of a general vehicle control system.

以下に図面を参照しながら本発明の一実施形態について説明する。
図１は、本実施形態における車両制御システム１の構成を示す図である。
同図の構成において、電池パック１０内には、電池監視装置１１と複数の２次電池１２−１〜１２−ｎの他に、新たに電池パック搭載メモリ１３を備えている。この電池パック１０内に設けられた電池パック搭載メモリ１３は、パワーマネジメントＥＣＵ２０内のメモリ２２に記憶されている２次電池１２−１〜１２−ｎに対する電池固有の情報をバックアップして記憶している。 An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram illustrating a configuration of a vehicle control system 1 in the present embodiment.
In the configuration shown in the figure, in the battery pack 10, a battery pack mounting memory 13 is newly provided in addition to the battery monitoring device 11 and the plurality of secondary batteries 12-1 to 12-n. The battery pack mounting memory 13 provided in the battery pack 10 backs up and stores battery-specific information for the secondary batteries 12-1 to 12-n stored in the memory 22 in the power management ECU 20. Yes.

この車両制御システム１を搭載した電気駆動車両が走行を開始するときに、パワーマネジメントＥＣＵ２０は、電池パック１０内の電池パック搭載メモリ１３から自己のメモリ２２に２次電池１２−１に対する電池固有の情報をロードする。そして車両が走行中には、このメモリ１２にロードした情報と電池監視装置１１から通知される状態情報（温度情報、開放電圧(ＯＣＶ：Open circuit voltage)等）を基にして、各２次電池１２−１〜１２−ｎのＳＯＣ推定値を求める。そしてこの推定値に基づいて演算装置２１は、２次電池１２−１〜１２−ｎの充放電を切り替えるリレー３０及び充電用の電圧に昇圧する昇圧回路４０を制御する。またこのとき演算装置２１は、電池監視装置１１から通知される電池固有の情報に基づいて、メモリ１２２内の情報を更新してゆく。そして電気駆動車両の走行が終了すると、パワーマネジメントＥＣＵ２０は、演算装置２１がメモリ１２内の情報を電池パック１０内の電池パック搭載メモリ１３に転送し、バックアップを取る。   When the electrically driven vehicle equipped with the vehicle control system 1 starts to travel, the power management ECU 20 transfers the battery specific to the secondary battery 12-1 from the battery pack mounted memory 13 in the battery pack 10 to its own memory 22. Load information. While the vehicle is running, each secondary battery is based on the information loaded into the memory 12 and the state information (temperature information, open circuit voltage (OCV), etc.) notified from the battery monitoring device 11. The estimated SOC values of 12-1 to 12-n are obtained. Based on this estimated value, the arithmetic unit 21 controls the relay 30 that switches charging / discharging of the secondary batteries 12-1 to 12-n and the booster circuit 40 that boosts the voltage to the charging voltage. At this time, the arithmetic unit 21 updates the information in the memory 122 based on the battery-specific information notified from the battery monitoring device 11. When the travel of the electrically driven vehicle is finished, the power management ECU 20 transfers the information in the memory 12 to the battery pack mounted memory 13 in the battery pack 10 and takes a backup.

このような処理によって、本実施形態の車両制御システム１では、電池パック１０内に保持されている各２次電池１２−１〜１２−ｎの固有の情報は、電池パック１０内に設けた電池パック搭載メモリ１３内に記憶される。よって電池パック１０の交換が行われても、その電池パック１０内の電池パック搭載メモリ１３に記憶されている情報が車両の走行前にパワーマネジメントＥＣＵ２０内のメモリにロードされるので、パワーマネジメントＥＣＵ２０は、交換後の２次電池１２−１〜１２−ｎに対応した電池固有の情報に基づいて制御を行うことができる。   By such processing, in the vehicle control system 1 of the present embodiment, the unique information of each of the secondary batteries 12-1 to 12-n held in the battery pack 10 is the battery provided in the battery pack 10. It is stored in the pack mounting memory 13. Therefore, even if the battery pack 10 is replaced, the information stored in the battery pack mounting memory 13 in the battery pack 10 is loaded into the memory in the power management ECU 20 before the vehicle travels. Can be controlled based on battery-specific information corresponding to the replaced secondary batteries 12-1 to 12-n.

また２次電池１２−１〜１２−ｎについての電池固有の情報を記憶した電池パック搭載メモリ１３が、２次電池１２−１〜１２−ｎとともに１つの電池パック１０として構成される。したがって電池パック１０が複数の車両間で移し替えられても、電池パック搭載メモリ１３には常に２次電池１２−１〜１２−ｎの現状の状態を示す電池固有の情報が記憶されているので、常に車両側はその情報を元に制御を行うことができる。   Further, the battery pack mounting memory 13 storing the battery-specific information about the secondary batteries 12-1 to 12-n is configured as one battery pack 10 together with the secondary batteries 12-1 to 12-n. Therefore, even if the battery pack 10 is transferred between a plurality of vehicles, the battery pack mounted memory 13 always stores battery-specific information indicating the current state of the secondary batteries 12-1 to 12-n. The vehicle side can always perform control based on the information.

次に本実施形態の車両制御システム１で、電池パック１０内の電池パック搭載メモリ１３に記憶される電池固有の情報について説明する。
この電池固有の情報としては、２次電池１２−１〜１２−ｎに対する車両外部からの充電履歴、車両走行中の２次電池１２−１〜１２−ｎの充放電履歴、車両の走行距離、前回走行終了時における２次電池１２−１〜１２−ｎの電圧やＳＯＣ、及び２次電池１２−１〜１２−ｎの特性を示すパラメータマップ等が考えられる。これらの情報と電池監視装置１１からリアルタイムでパワーマネジメントＥＣＵ２０に通知される各２次電池１２−１〜１２−ｎのＯＣＶ及び温度からＳＯＣの推定値を求める。 Next, battery-specific information stored in the battery pack mounting memory 13 in the battery pack 10 in the vehicle control system 1 of the present embodiment will be described.
As information specific to the battery, charging history from the outside of the vehicle for the secondary batteries 12-1 to 12-n, charging / discharging history of the secondary batteries 12-1 to 12-n during traveling of the vehicle, traveling distance of the vehicle, A parameter map indicating the voltage and SOC of the secondary batteries 12-1 to 12-n at the end of the previous run and the characteristics of the secondary batteries 12-1 to 12-n may be considered. The estimated value of SOC is calculated | required from these information and OCV and temperature of each secondary battery 12-1 to 12-n notified to power management ECU20 in real time from the battery monitoring apparatus 11. FIG.

図２は、２次電池１２の温度及びＯＣＶとＳＯＣの関係を模式的に表した図である。
２次電池１２は電池温度や電池の劣化の度合いによって内部抵抗が変動して、ＯＣＶ−ＳＯＣ特性が変化する。例えば図２に示すように電池温度が低下しまた電池の劣化の度合いが大きくなると内部抵抗が大きくなり、逆に電池温度が上昇すると内部抵抗が小さくなる。したがってＯＣＶの値が同じでも、２次電池１２の劣化の度合いや電池温度によってＳＯＣの推定値の値が変わってくる。 FIG. 2 is a diagram schematically showing the temperature of the secondary battery 12 and the relationship between OCV and SOC.
The internal resistance of the secondary battery 12 varies depending on the battery temperature and the degree of battery deterioration, and the OCV-SOC characteristics change. For example, as shown in FIG. 2, when the battery temperature decreases and the degree of deterioration of the battery increases, the internal resistance increases. Conversely, when the battery temperature increases, the internal resistance decreases. Therefore, even if the OCV value is the same, the estimated SOC value varies depending on the degree of deterioration of the secondary battery 12 and the battery temperature.

図３は、図２のグラフを電池特性パラメータマップとして表したものである。２次電池１２−１〜１２−ｎの電池温度及びＯＣＶとＳＯＣの関係はこの図３のような表形式でメモリ２２に記憶される。   FIG. 3 shows the graph of FIG. 2 as a battery characteristic parameter map. The battery temperatures of the secondary batteries 12-1 to 12-n and the relationship between the OCV and the SOC are stored in the memory 22 in a table format as shown in FIG.

２次電池１２のＳＯＣは、ＯＣＶと１体１の関係がある。しかしその関係は、電池温度によって変化する。この図３の表では、電池温度と電池のＯＣＶで参照することによって、電池のＳＯＣの推定値を求めることができるよう構成されている。   The SOC of the secondary battery 12 has a relationship of OCV and one body. However, the relationship varies depending on the battery temperature. In the table of FIG. 3, the estimated value of the SOC of the battery can be obtained by referring to the battery temperature and the OCV of the battery.

例えばパワーマネジメントＥＣＵ２０の演算装置２１は、電池監視装置１１から電池温度が２５℃でＯＣＶが３５．００Ｖと通知されると、メモリ２２内の図３のような電池特性パラメータマップから２次電池１２のＯＣＶは−４％と推定する。そして演算制御部２１は、電気駆動車両のユーザに外部からの充電を促したり、あるいはブレーキ回生発電等により積極的に２次電池１２−１〜１２−ｎに電力が充電されるよう車両を制御する。   For example, when the battery monitoring device 11 notifies the battery management device 11 that the battery temperature is 25 ° C. and the OCV is 35.00 V, the computing device 21 of the power management ECU 20 uses the battery characteristic parameter map as shown in FIG. The OCV is estimated to be -4%. Then, the arithmetic control unit 21 controls the vehicle so as to prompt the user of the electrically driven vehicle to charge from the outside, or to positively charge the secondary batteries 12-1 to 12-n by brake regenerative power generation or the like. To do.

なお図３に示した電池特性パラメータマップのパラメータ値は、２次電池１２−１〜１２−ｎの劣化の度合いによって変化する。したがって演算装置２１は、メモリ２２に記憶されている外部充電の履歴や車両の走行履歴、またメインＥＣＵから通知される走行実績や充電実績基づいて、このパラメータ値を変更してゆき、２次電池１２−１〜１２−ｎの劣化具合に追従して、電池特性パラメータマップを学習させる。   The parameter values in the battery characteristic parameter map shown in FIG. 3 vary depending on the degree of deterioration of the secondary batteries 12-1 to 12-n. Therefore, the arithmetic unit 21 changes this parameter value based on the external charging history and the vehicle traveling history stored in the memory 22 and the traveling results and charging results notified from the main ECU. The battery characteristic parameter map is learned following the deterioration of 12-1 to 12-n.

そして電気駆動車両の走行が終了すると、演算装置２１は、メモリ２２に記憶されている、最新の電池特性パラメータマップや２次電池１２の劣化具合を求めるのに必要な外部充電履歴や走行履歴、走行終了時のＯＣＶの値等の情報を電池パック１０内の電池パック搭載メモリ１３にバックアップする。   When the travel of the electrically driven vehicle is completed, the arithmetic unit 21 stores the latest battery characteristic parameter map stored in the memory 22 and the external charge history and travel history necessary for obtaining the deterioration degree of the secondary battery 12, Information such as the OCV value at the end of travel is backed up in the battery pack mounted memory 13 in the battery pack 10.

これにより電池パック１０には、搭載されている２次電池１２−１〜１２−ｎの最新の状態を示す情報が電池パック搭載メモリ１３内に記憶されている。よってこの電池パック１０を搭載する電気駆動車両は、走行開始時にこの電池パック搭載メモリ１３内の情報をパワーマネジメントＥＣＵ２０のメモリ２２に読み込むことによって、電気パック１０が交換されても搭載されている２次電池１２−１〜１２−ｎに対応した制御を行うことができる。   Thereby, in the battery pack 10, information indicating the latest state of the mounted secondary batteries 12-1 to 12-n is stored in the battery pack mounting memory 13. Therefore, the electrically driven vehicle on which the battery pack 10 is mounted is mounted even when the electric pack 10 is replaced by reading the information in the battery pack mounted memory 13 into the memory 22 of the power management ECU 20 at the start of traveling. Control corresponding to the secondary batteries 12-1 to 12-n can be performed.

１、１００ 電気駆動車両
１０、１１０ 電池パック
１１、１１１ 電池監視装置
１２、１１２ ２次電池
１３ 電池パック搭載メモリ
２０、１２０ パワーマネジメントＥＣＵ
２１、１２１ 演算装置
２２、１２２ メモリ
３０、１３０ リレー
４０、１４０ 昇圧回路
DESCRIPTION OF SYMBOLS 1,100 Electric drive vehicle 10,110 Battery pack 11,111 Battery monitoring apparatus 12,112 Secondary battery 13 Battery pack mounting memory 20,120 Power management ECU
21, 121 Arithmetic unit 22, 122 Memory 30, 130 Relay 40, 140 Booster circuit

Claims (5)

駆動に電動機を用いる車両に搭載されている２次電池の制御を行う車両制御システムにおいて、
前記２次電池と、更新可能な電池パック搭載メモリとを備え、前記車両から脱着可能な電池パックと、
演算装置とメモリを備え、当該演算装置は、前記車両が走行を開始するとき、前記電池パック搭載メモリ内の情報を前記メモリに読み込み、当該車両の走行中に当該メモリ内の情報を更新し、当該車両が走行を終了したときに当該メモリ内の情報を前記電池パック搭載メモリに転送する
ことを特徴とする車両制御システム。 In a vehicle control system that controls a secondary battery mounted on a vehicle that uses an electric motor for driving,
A battery pack comprising the secondary battery and an updatable battery pack mounted memory, and removable from the vehicle;
When the vehicle starts running, the computing device reads information in the battery pack mounted memory into the memory, updates the information in the memory while the vehicle is running, The vehicle control system, wherein information in the memory is transferred to the battery pack mounted memory when the vehicle finishes traveling. 前記演算装置は、前記車両の走行及び前記２次電池の充電による当該２次電池の劣化の度合いに応じて前記メモリ内の情報を更新することを特徴とする請求項１に記載の車両制御システム。   2. The vehicle control system according to claim 1, wherein the arithmetic device updates information in the memory in accordance with a degree of deterioration of the secondary battery due to traveling of the vehicle and charging of the secondary battery. . 前記演算装置は、前記メモリ内の情報に基づいて、前記２次電池に対する制御を行うことを特徴とする請求項１に記載の車両制御システム。   The vehicle control system according to claim 1, wherein the arithmetic device controls the secondary battery based on information in the memory. 駆動に電動機を用いる車両で用いられる２次電池を搭載した、前記車両から脱着可能な電池パックにおいて、
更新可能な電池パック搭載メモリを備え、
前記車両が走行を開始するとき、当該電池パック搭載メモリに記憶されている情報を前記車両側に送り、前記車両が走行を終了するとき当該車両から送られてきた情報に基づいて前記電池パック搭載メモリ内の情報を更新する
ことを特徴とする電池パック。 In a battery pack detachable from the vehicle, equipped with a secondary battery used in a vehicle that uses an electric motor for driving,
It has a battery pack memory that can be updated
When the vehicle starts traveling, the information stored in the battery pack mounted memory is sent to the vehicle side, and the battery pack mounted based on the information sent from the vehicle when the vehicle finishes traveling. A battery pack characterized by updating information in a memory. 前記電池パック搭載メモリに記憶される情報は、前記２次電池の電池温度及び開放電圧と前記２次電池の残量の関係を表す情報、及び前記２次電池の劣化状態を求めるのに必要な情報を含むことを特徴とする請求項４に記載の電池パック。   The information stored in the battery pack mounted memory is necessary to obtain information indicating the relationship between the battery temperature and open circuit voltage of the secondary battery and the remaining amount of the secondary battery, and the deterioration state of the secondary battery. The battery pack according to claim 4, further comprising information.
JP2011093860A 2011-04-20 2011-04-20 Vehicle control system and battery pack Pending JP2012228074A (en)

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