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公开(公告)号：US20230302910A1
公开(公告)日：2023-09-28
申请号：US18204714
申请日：2023-06-01
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshiaki KIKUCHI , Junichi MATSUMOTO , Akio UOTANI
CPC classification number: B60L3/0046 , B60L50/66 , B60L2240/545
Abstract: A vehicle includes: a battery pack including a secondary battery, a battery sensor configured to detect a state of the secondary battery, and a first control device; and a second control device provided separately from the battery pack, wherein: the first control device is configured to set a power upper limit value indicating an upper limit value of a battery power of the secondary battery by using a detection value of the battery sensor; and the second control device is configured to set a guard value of the upper limit value of the battery power by using a temperature of the secondary battery and set the power upper limit value such that the power upper limit value does not exceed the guard value.
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公开(公告)号：US20220399585A1
公开(公告)日：2022-12-15
申请号：US17663870
申请日：2022-05-18
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Shota IMAI , Junichi MATSUMOTO , Tomoaki TOSHIJIMA
Abstract: A battery system includes a battery module, thermistor, and ECU. The thermistor detects the temperature of a first area in the battery module. The ECU calculates the estimated temperature of a second area having a higher temperature than the first area in the battery module, by adding a temperature correction amount to a detected value of the thermistor. The ECU is configured to set the temperature correction amount according to a time differential value of the detected value. Then, the ECU sets the temperature correction amount such that the rate of increase of the estimated temperature of the second area does not exceed a predetermined rate that is larger than zero.
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公开(公告)号：US20210276451A1
公开(公告)日：2021-09-09
申请号：US17183558
申请日：2021-02-24
Inventor： Takayuki IRIE , Jun SATOH , Junichi MATSUMOTO , Daisuke KOBA , Yosuke MUROTA , Kazuki NAKANO , Suguru MURAKI
Abstract: A battery system includes a nickel-metal hydride battery and an ECU that controls charging and discharging of the nickel-metal hydride battery. The ECU calculates a discharge electricity amount showing an integrated value of a current discharged from the nickel-metal hydride battery, and further calculates ΔSOC of the nickel-metal hydride battery in a prescribed time period. The ECU calculates a charge reserve capacity of the nickel-metal hydride battery based on a temperature of the nickel-metal hydride battery, the discharge electricity amount, and the ΔSOC.
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公开(公告)号：US20210188123A1
公开(公告)日：2021-06-24
申请号：US17113486
申请日：2020-12-07
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshiaki KIKUCHI , Junichi MATSUMOTO , Akio UOTANI
Abstract: A vehicle includes a battery pack including a secondary battery, a battery sensor that detects a state of the secondary battery, and a first control device, a second control device provided separately from the battery pack, and a converter. The first control device is configured to use a detection value of the battery sensor to obtain a current upper limit value indicating an upper limit value of an input current of the secondary battery. The second control device is configured to use a power upper limit value indicating an upper limit value of an input power of the secondary battery to control the input power of the secondary battery.
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公开(公告)号：US20200177018A1
公开(公告)日：2020-06-04
申请号：US16682522
申请日：2019-11-13
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Juni YASOSHIMA , Junta IZUMI , Kenji KIMURA , Toshihiro KATSUDA , Kohei MATSUURA , Junichi MATSUMOTO , Shuji TOMURA , Shigeaki GOTO , Naoki YANAGIZAWA , Kyosuke TANEMURA , Kazuo OOTSUKA , Takayuki BAN , Hironobu NISHI
IPC: H02J9/06
Abstract: A control device of a power supply system is configured to control inputting of electric power from a power system connected to a power distribution device to a plurality of strings connected to the power distribution device and outputting of electric power from the plurality of strings to the power system and to execute a process of stopping control for switching the at least one switching element between connection and disconnection on a string in which inputting of electric power and outputting of electric power are stopped out of the plurality of strings.
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Patent Agency Ranking
公开(公告)号：US20210188117A1
公开(公告)日：2021-06-24
申请号：US17062723
申请日：2020-10-05
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshiaki KIKUCHI , Junichi MATSUMOTO , Akio UOTANI
Abstract: An electrically driven vehicle includes a battery pack including a battery ECU, a gate ECU provided separately from the battery pack, and an HVECU provided separately from the battery pack and the gate ECU and configured to control any one of battery power and battery current of the secondary battery as a control target. The gate ECU relays communication between the battery ECU and the HVECU, and stores, in a ring buffer, history information on information exchanged between the battery ECU and the HVECU.
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公开(公告)号：US20210188094A1
公开(公告)日：2021-06-24
申请号：US17109786
申请日：2020-12-02
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshiaki KIKUCHI , Junichi MATSUMOTO , Akio UOTANI
Abstract: A vehicle includes: a battery pack including a secondary battery, a battery sensor configured to detect a state of the secondary battery, and a first control device; and a second control device provided separately from the battery pack, wherein: the first control device is configured to set a power upper limit value indicating an upper limit value of a battery power of the secondary battery by using a detection value of the battery sensor; and the second control device is configured to set a guard value of the upper limit value of the battery power by using a temperature of the secondary battery and set the power upper limit value such that the power upper limit value does not exceed the guard value.
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公开(公告)号：US20200177178A1
公开(公告)日：2020-06-04
申请号：US16684734
申请日：2019-11-15
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Juni YASOSHIMA , Junta IZUMI , Kenji KIMURA , Toshihiro KATSUDA , Kohei MATSUURA , Junichi MATSUMOTO , Shuji TOMURA , Shigeaki GOTO , Naoki YANAGIZAWA , Kyosuke TANEMURA , Kazuo OOTSUKA , Takayuki BAN , Hironobu NISHI
IPC: H03K17/30 , H02J7/00 , H01M10/48 , H02H3/08 , H03K17/082
Abstract: A power supply system includes a plurality of sweep modules that is connected to a main line. Each sweep module includes a switching element that switches between connection and disconnection between a battery module and the main line and is formed of a MOSFET. A failure detecting device of the power supply system includes a temperature detecting unit configured to detect temperatures of the plurality of sweep modules and a failure determining unit configured to determine whether a difference between a temperature of one sweep module selected from the plurality of sweep modules and a reference temperature which is determined based on the temperatures of other sweep modules is greater than a predetermined threshold value.
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公开(公告)号：US20200177019A1
公开(公告)日：2020-06-04
申请号：US16686435
申请日：2019-11-18
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Juni YASOSHIMA , Junta IZUMI , Kenji KIMURA , Toshihiro KATSUDA , Kohei MATSUURA , Junichi MATSUMOTO , Shuji TOMURA , Shigeaki GOTO , Naoki YANAGIZAWA , Kyosuke TANEMURA , Kazuo OOTSUKA , Takayuki BAN , Hironobu NISHI
Abstract: A power supply system disclosed here is connected to an electric power system through a distribution device. The power supply system includes a plurality of strings connected to the distribution device and a failure detector. The failure detector of the power supply system is configured to perform a first process of connecting at least one battery module to a main line to set a voltage detected by a string voltage detector at a voltage higher than a predetermined voltage in a state where a switch disconnects the distribution device and the main line, a second process of sending a disconnecting signal for disconnecting all the sweep modules from the main line, and a third process of determining whether the voltage detected by the string voltage detector is lower than the predetermined determination voltage or not after the second process.
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公开(公告)号：US20160241054A1
公开(公告)日：2016-08-18
申请号：US15025106
申请日：2014-09-29
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Junichi MATSUMOTO , Takashi OGURA
CPC classification number: H02J7/0016 , B60L3/0046 , B60L3/12 , B60L7/12 , B60L11/1805 , B60L11/1866 , B60L2240/545 , B60L2240/547 , B60L2240/549 , B60L2240/80 , G01R31/3658 , H01M10/0525 , H01M10/34 , H01M10/425 , H01M10/441 , H01M10/46 , H01M10/48 , H01M10/482 , H01M2010/4271 , H01M2220/20 , H02J7/0021 , Y02T10/7005 , Y02T10/7061
Abstract: A power storage system includes a power storage device and a controller. The controller controls discharge processing based on voltage values of power storage elements. The controller determines an abnormal state according to voltage fluctuation after the voltage values are made uniform. The controller performs first processing when the following conditions i) and ii) are satisfied and performs second processing when the following conditions i) and iii) are satisfied. The condition i) is that the power storage elements are divided into a plurality of groups, each group consists of each power storage stack included in the power storage device. The condition ii) is that the voltage values of the power storage elements are different in each group. The condition iii) is that, in the plurality of groups in each of which the voltage values are made uniform, the voltage values are different among the plurality of groups.
Abstract translation: 蓄电系统包括蓄电装置和控制器。 控制器基于蓄电元件的电压值控制放电处理。 控制器在电压值均匀后根据电压波动确定异常状态。 当满足以下条件i）和ii）时，控制器执行第一处理，并且当满足以下条件i）和iii）时，执行第二处理。 条件i）是将蓄电元件分成多个组，每个组由包括在蓄电装置中的每个蓄电堆构成。 条件ii）是各组中的蓄电元件的电压值不同。 条件iii）是在电压值均匀的多个组中，多个组中的电压值不同。
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