Toyota Jidosha Kabushiki Kaisha

Sumitomo Chemical Company, Limited

Sharp Kabushiki Kaisha Corporation

Matsushita Electric Industrial Co., Ltd.

Other

Toyoda Gosei Co., Ltd.

Panasonic Corporation

Yamaha Hatsudoki Kabushiki Kaisha

Yazaki Corporation

Mita Industrial Co., Ltd.

Kabushiki Kaisha Toyota Chuo Kenkyusho

Tohoku University

Toyo Kohan Co., Ltd.

Fujitsu Hitachi Plasma Display Limited

Matsushita Electrical Industrial Co., Ltd.

Kenji Kimura

Junta Izumi

Shuji Tomura

Naoki Yanagizawa

Kyosuke Tanemura

Kazuo Ootsuka

Shigeaki Goto

Toshihiro Katsuda

Takayuki Ban

Kohei Matsuura

Junichi Matsumoto

Juni Yasoshima

Hironobu Nishi

Masakazu Habu

Nobuyoshi Fujiwara

Tsuyoshi Hayashi

Akihiro Sato

Kosuke Kusaba

Shinya Tanaka

Manji Sasaki

Yoshihisa Oda

Toshitake Sasaki

Takabumi Fujii

Makito Muramatsu

Tatsuya Hashimoto

Shinichi Yachigo

Hitoki Sugimoto

Hirotaka Watanabe

Kunihito Miyake

Takaji Umeno

Masanori Ishigaki

Shigemasa Hirooka

Satoshi Aoyama

Shinsuke Fukuda

Masahiro Tatsumisago

Makio Gotoh

Seiichi Hirano

Yasuhiro Takahashi

Makoto Kakuchi

Masatsugu Akiba

Mitsugu Takaki

Akitoshi Hayashi

Shigeru Ogino

Yoichi Onishi

Shinya Kimoto

Yasunori Uchida

Hiroyasu Koyama

Akira Iwamura

Yasuhiro Izawa

Kazuya Miyaji

Tomohiro Ikeda

Akihiro Katayama

Takashi Shimazu

Naoki Ito

Yoshikazu Kanazawa

Rihito Kaneko

Shuntaro Okazaki

Noboru Takagi

Satoshi Iguchi

Naoto Kato

Satoshi Watanabe

Yoshiaki Ichikawa

Michitaka Ohsawa

Makoto Onozawa

Kenji Takahashi

Takashi Murata

Yuji Nishi

Masaaki Yamaoka

Katsunori Sato

Takayoshi Nakamura

Kazuo Yoshida

Isao Takagi

Masahiko Mitsui

Hiromichi Sato

Masashi Hakariya

Takeshi Hattori

Takeshi Tanabe

Takashi Kojima

Kazumasa Hayashi

Junta Katayama

Yoshiki Nakamura

Shigeo Iriguchi

Kanako Fukuda

Hiroyuki Mitsui

Hirotaka Mukasa

Yoshimi Asai

Shinji Ohsawa

Masanori Minami

Hiroaki Tsuji

Yasuhiro Sakoda

Eiji Kadouchi

Kouji Nanbu

Masayoshi Taki

Hiroyuki Kaiya

Tatsuhiko Nakamura

Yasuhiro Nobata

Yoshiaki Kameda

Mutsuko Higo

Masahiko Iijima

Hiroshi Kajikuri

A vehicle system includes a warning device and at least one electronic control unit. The at least one electronic control unit is configured to present a light stimulus to a driver, and determine whether the driver is facing forward, determine whether the driver holds a steering wheel, and cause the warning device to perform a first warning when it is determined that the driver is not facing forward while the light stimulus is being presented. The first warning is either the vibration or the sound. The at least one electronic control unit is configured to perform a second warning when it is determined that the driver does not hold the steering wheel before a predetermined time elapses after the first warning is started. The second warning includes the vibration and the sound.

Vehicle system and vehicle

The battery cellar includes a storage cabinet that stores a plurality of used batteries, a power converter (an AC/DC converter and a DC/DC converter) electrically connected between the plurality of used batteries stored in the storage cabinet and a power system, and a server that controls the power converter to charge or discharge the plurality of batteries in response to a demand response request from the power system. The server selects, from the plurality of used batteries, a first battery, the degradation degree of which has reached a reference value, and a second battery, the degradation degree of which does not reach the reference value but is predicted to reach the reference value within a predetermined period, as replacement target batteries.

Battery management system and battery management method for prediction, selection and charging

The battery cellar includes a storage cabinet that stores a plurality of batteries, a power converter (an AC/DC converter and a DC/DC converter) electrically connected between the plurality of batteries stored in the storage cabinet and a power system to perform a bidirectional power conversion operation, and a server that controls the power converter to charge or discharge the plurality of batteries in response to a DR request from the power system. The server, based on a level of demand determined in accordance with a rank related to a degradation degree of a battery, suppresses the charging/discharging of a battery with a higher demand rank among the plurality of batteries as compared with the charging/discharging of a battery with a lower demand rank among the plurality of batteries.

Battery management system and battery management method

A battery cellar includes: battery groups each including a plurality of batteries; a power converter (AC/DC converter and DC/DC converter) electrically connected between the plurality of batteries and an electric power system; and a server that controls operation of the power converter in accordance with a DR request from the electric power system, to cause charging and discharging of the plurality of batteries. The battery groups include a low operating group and a high operating group that is less than or equal to the low operating group in terms of the number of types of ranks of batteries included in each battery group, where the ranks each represent a degree of battery degradation. The server suppresses charging and discharging of the plurality of batteries included in the low operating group, relative to charging and discharging of the plurality of batteries included in the high operating group.

The battery cellar includes a storage cabinet that stores a plurality of batteries, an AC/DC converter and a DC/DC converter electrically connected between the plurality of used batteries stored in the storage cabinet and a power system, and a server that controls the AC/DC converter and the DC/DC converter. The server controls the AC/DC converter and the DC/DC converter in response to a demand response request from the power system, and evaluates a degradation degree of each of the plurality of used batteries based on a voltage and a current of each of the plurality of used batteries charged or discharged by the AC/DC converter and the DC/DC converter.

A power supply device includes: a first high-voltage line for exchanging the electric power externally; a second high-voltage line for applying current flowing in a direction opposite to the first high-voltage line; a plurality of batteries; a plurality of SUs, the SUs being provided corresponding to the respective batteries, switching a connection state of the batteries to the first high-voltage line, and being disposed in a circle; and an SCU that controls the SUs. The SU can switch between a first state in which the battery corresponding to the SU is connected in series to the first high-voltage line and a second state in which the battery is not connected to the first high-voltage line. The SCU controls the SUs to switch to the first state or the second state in accordance with a voltage of the electric power to be charged and discharged.

Power supply device

A power supply system includes an alternating current sweep unit and a first power supply circuit, and each of a first U-phase battery string, a first V-phase battery string, a first W-phase battery string, and a first battery string includes a plurality of battery circuit modules connected in series, and each of the battery circuit modules includes a battery, output terminals, a first switch, and a second switch.

Power supply system

A power supply system comprises an alternating-current sweep unit that outputs alternating-current power from a U-phase battery string, a V-phase battery string, and a W-phase battery string that are Y-connected, a first power supply circuit that converts output of a direct-current sweep unit to alternating-current power using an inverter and outputs the alternating-current power, the direct-current sweep unit including a first battery string; and a control device. An energy density of a battery included in the U-phase battery string, the V-phase battery string, and the W-phase battery string is higher than an energy density of a battery included in the first battery string.

A power supply system includes an alternating current sweep unit and a first power supply circuit, and each of a U-phase battery string, a V-phase battery string, a W-phase battery string, and a first battery string includes a plurality of battery circuit modules connected in series, and each of the battery circuit modules includes a battery, output terminals, a first switch, and a second switch.

In a power supply system, a control device is configured to select one or more target batteries that are to perform requested energy management from a plurality of batteries included in an alternating-current battery string and a direct-current battery string, and perform the requested energy management using the one or more target batteries with the batteries other than the one or more target batteries being disconnected from a circuit.

Power supply system and energy management method

An electric power supply system includes an alternating current electric power supply circuit that converts direct current electric power of a first direct current sweep unit including a battery string into alternating current electric power using a first inverter and outputs it, and an alternating current sweep unit that includes a U-phase battery string, a V-phase battery string, and a W-phase battery string that are Y-connected. Output densities of batteries of the battery string are higher than output densities of batteries of the alternating current sweep unit. Alternating current electric power is output from the alternating current sweep unit and the alternating current electric power supply circuit, and after a predetermined period elapses, the output of the alternating current electric power from the alternating current electric power supply circuit is stopped.

Electric power supply system

In a power supply system, a control device is configured to adjust a state of charge of each of an alternating-current battery string and a direct-current battery string by power transfer between the alternating-current battery string and the direct-current battery string before performing requested energy management.

A management apparatus is configured to adjust an upper limit amount of electric power for charging. The management apparatus may be provided in an electric vehicle or a charging apparatus. The management apparatus may include a dial for adjusting the upper limit amount of electric power, and a user may be able to adjust the upper limit amount of electric power by operating the dial. A user who drives 300 km per week for commute may set the amount of electric power corresponding to 300 km (plus extra travel distance) for the upper limit amount of electric power. The user may connect a battery to the charging apparatus on weekends. When the battery has a capacity to store the amount of electric power corresponding to, for example, 500 km, the management apparatus may stop charging when the battery is charged with the set upper limit amount of electric power.

Management apparatus for battery of electric vehicle

A power supply system that outputs AC power to an object to which power is to be supplied includes: a first power supply circuit including a DC battery string and an inverter and configured to output first AC power; a second power supply circuit including an AC battery string and configured to output second AC power; and a control device. In the first mode, power is transferred between the object and the second power supply circuit. In the second mode, power is transferred between the object and each of the first and second power supply circuits. The control device starts supplying the second AC power to the object in the first mode, and when a power supply current becomes larger than a first threshold, supply the first and second AC power to the object in the second mode.

Growing community of inventors

Miyoshi, Japan

Kenji Kimura