Patents by Inventor Kazuyoshi Obayashi
Kazuyoshi Obayashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8504228Abstract: An energy management apparatus is used to manage energy to be supplied to a system. A paid energy resource can be supplied to the system from the outside. The system is provided with two or more functional device units realizing a specific function using the input energy and adapted to satisfy an external request using at least one of the two or more functional device units such that supply of energy to the functional device units can be controlled. In the apparatus, a normalizing section normalizes input energy of each of the two or more functional device units in terms of the cost of the paid energy resource required for producing the input energy. In addition, a determining section determines to which of the two or more functional device units a predetermined quantity of energy should be fed such that the cost incurred in the system can be reduced.Type: GrantFiled: June 7, 2010Date of Patent: August 6, 2013Assignee: Denso CorporationInventors: Kazuyoshi Obayashi, Akira Sakamoto
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Patent number: 8476790Abstract: An ECU executes a program including a step of turning on an SMRP and an A-SMRP if an ignition switch is turned on; a step of detecting voltage values VB(1) and VB(2) of running batteries when VH is detected and if VH is higher than 180 V; a step of detecting that SMRP connected to the running battery is welded, if VB(1) is higher than 150 V; and a step of detecting that A-SMRB connected to the running battery is welded, if VB(2) is higher than 150 V.Type: GrantFiled: December 14, 2012Date of Patent: July 2, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinji Ichikawa, Kazuyoshi Obayashi
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Patent number: 8471413Abstract: An ECU executes a program including a step of turning on an SMRP and an A-SMRP if an ignition switch is turned on; a step of detecting voltage values VB(1) and VB(2) of running batteries when VH is detected and if VH is higher than 180 V; a step of detecting that SMRP connected to the running battery is welded, if VB(1) is higher than 150 V; and a step of detecting that A-SMRB connected to the running battery is welded, if VB(2) is higher than 150 V.Type: GrantFiled: December 14, 2012Date of Patent: June 25, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinji Ichikawa, Kazuyoshi Obayashi
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Publication number: 20130099596Abstract: An ECU executes a program including a step of turning on an SMRP and an A-SMRP if an ignition switch is turned on; a step of detecting voltage values VB(1) and VB(2) of running batteries when VH is detected and if VH is higher than 180 V; a step of detecting that SMRP connected to the running battery is welded, if VB(1) is higher than 150 V and a step of detecting that A-SMRB connected to the running battery is welded, if VB(2) is higher than 150 V.Type: ApplicationFiled: December 14, 2012Publication date: April 25, 2013Inventors: Shinji ICHIKAWA, Kazuyoshi OBAYASHI
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Publication number: 20130099595Abstract: An ECU executes a program including a step of turning on an SM and an A-SMRP if an ignition switch is turned on a step of detecting voltage values VB(1)and VB(2) of running batteries when VH is detected and if VH is higher than 180 V; a step of detecting that SMRP connected to the running battery is welded, if VB(1) is higher than 150 V; and a step of detecting that A-SMRB connected to the running battery is welded, if VB(2) is higher than 150 V.Type: ApplicationFiled: December 14, 2012Publication date: April 25, 2013Inventors: Shinji ICHIKAWA, Kazuyoshi OBAYASHI
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Publication number: 20130099594Abstract: An ECU executes a program including a step of turning on an SMRP and an A-SMRP if an ignition switch is turned on; a step of detecting voltage values VB(1)and VB(2) of running batteries when VH is detected and if VH is higher than 180 V; a step of detecting that SMRP connected to the running battery is welded, if VB(1) is higher than 150 V; and a step of detecting that A-SMRB connected to the running battery is welded, if VB(2) is higher than 150 V.Type: ApplicationFiled: December 14, 2012Publication date: April 25, 2013Applicant: Toyota Jidosha Kabushiki KaishaInventors: Shinji ICHIKAWA, Kazuyoshi OBAYASHI
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Patent number: 8428803Abstract: An EV priority switch is configured to allow a user to request a change between an EV priority mode and an HV mode. If an SOC of a power storage device is less than a first threshold value when the change to the HV mode is requested from the EV priority switch during the EV priority mode, an ECU changes the running mode to attain the HV mode and controls the SOC to be close to the SOC at the moment of a request for the change to the HV mode. If the SOC is greater than or equal to the first threshold value, the ECU maintains the EV priority mode. If the SOC reaches a second threshold value less than the first threshold value, the ECU forcefully changes the running mode to attain the HV mode.Type: GrantFiled: July 9, 2008Date of Patent: April 23, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masayuki Komatsu, Kazuyoshi Obayashi, Hiroki Sawada
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Patent number: 8344555Abstract: An ECU executes a program including a step of turning on an SMRP and an A-SMRP if an ignition switch is turned on; a step of detecting voltage values VB(1) and VB(2) of running batteries when VH is detected and if VH is higher than 180 V; a step of detecting that SMRP connected to the running battery is welded, if VB(1) is higher than 150 V; and a step of detecting that A-SMRB connected to the running battery is welded, if VB(2) is higher than 150 V.Type: GrantFiled: November 15, 2007Date of Patent: January 1, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinji Ichikawa, Kazuyoshi Obayashi
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Publication number: 20120262881Abstract: A power supply device includes a refrigeration cycle having a compressor, a motor, an inverter-integrated charger, a heat exchanger unit, and a controller having a determining unit. The inverter-integrated charger selectively controls operation of the motor using electrical power of a battery and charge of the battery with external power. The heat exchanger unit cools a cooling-necessary part of the inverter-integrated charger using refrigerant in the refrigeration cycle. When the vehicle is stopped and the battery is charged with the external power, the controller makes the inverter-integrated charger serve as: a charger to perform the charge of the battery; or an inverter to control the operation of the motor, thereby driving the compressor, upon determination that the cooling-necessary part needs to be cooled by the determining unit.Type: ApplicationFiled: April 17, 2012Publication date: October 18, 2012Applicants: Nippon Soken, Inc., Denso CorporationInventors: Sadahisa ONIMARU, Shinji Andou, Seiji Iyasu, Kazuyoshi Obayashi, Akira Sakamoto, Shigeru Kawano
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Publication number: 20120228928Abstract: The electric power supply system includes a stationary device and a mobile device. The mobile device includes a rotary electric machine driven by an engine, a vehicular battery which is used to move the vehicle, and an emergency battery. The stationary battery in the stationary device may be charged by either one of the rotary electric machine, the stationary battery or the emergency battery via an inter-battery power line. The amount of charge to the stationary battery is set based on an amount of necessary power WRQ which the stationary device needs, and an amount of available power WVH which the mobile device can supply. The stationary battery can be charged in an efficient manner and with a sufficient amount of electric power.Type: ApplicationFiled: January 26, 2012Publication date: September 13, 2012Applicant: DENSO CORPORATIONInventors: Kazuyoshi OBAYASHI, Mitsuru FUJITA, Hiroshige ASADA
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Publication number: 20120200151Abstract: A non-contact power supply control device controls power supply to transmit power in a non-contact manner from a ground-side power supply section provided outside a vehicle traveling using stored power to a vehicle-side power receiving section provided to the vehicle. A detection unit detects a living body at the periphery of the ground-side power supply section. A control unit restricts the power supply in a case where the detection unit detects the living body at the periphery of the ground-side power supply section during the power supply operation to the vehicle-side power receiving section.Type: ApplicationFiled: January 26, 2012Publication date: August 9, 2012Applicant: DENSO CORPORATIONInventors: Kazuyoshi OBAYASHI, Akira SAKAMOTO, Keisuke TANI
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Publication number: 20120153717Abstract: A power supply apparatus for vehicles is provided. This apparatus includes a battery mounted on a vehicle as well as first and second power transferring means and a power conversion unit. The first power transferring means transfers power between the battery and a first power supply section placed outside the vehicle, in a state where the battery is electrically connected to the power supply section. The second power transferring means transfers power between the battery and the power supply section placed outside the vehicle, in a state where the battery is electromagnetically connected to a second power supply section. The power conversion unit is used commonly in both the first and second power transferring means and used for transferring the power between the battery and the first power supply section and for transferring the power between the battery and the second power supply section.Type: ApplicationFiled: December 16, 2011Publication date: June 21, 2012Applicant: DENSO CORPORATIONInventors: Kazuyoshi OBAYASHI, Akira SAKAMOTO
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Patent number: 8169183Abstract: An electric automobile has a battery and also has a travel motor and a vehicle interior load device which operate using electric power from the battery. In response to a request for a start of electric power supply to the vehicle interior load device with the automobile being at a standstill, the electric automobile determines, based on the charged state of the battery, whether electric power from the battery can be supplied to the vehicle interior load device. When determining that the electric power from the battery cannot be supplied to the vehicle interior load device, the electric automobile makes a request to an electric power supply device to supply electric power to the vehicle interior load device. In response to the request, the electric power supply device electrically connects to the vehicle interior load device and starts supply of electric power to the vehicle interior load device.Type: GrantFiled: April 18, 2008Date of Patent: May 1, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Kazuyoshi Obayashi
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Publication number: 20120086397Abstract: A power exchange system for exchanging power between a power supply system of an installation and a battery of a vehicle includes an installation-side charger/discharger, a vehicle-side charger/discharger coupled to the installation-side charger/discharger to exchange the power, and a vehicle-side controller having a determination section and a setting section. The determination section determines whether the installation is equipped with an installation-side controller that controls power distribution in the power supply system. The setting section sets one of the installation-side controller and the vehicle-side controller as a power command center based on a result of determination by the determination section. The power command center commands one of the installation-side charger/discharger and the vehicle-side charger/discharger to charge/discharge the battery based on information of the battery and information of the power supply system.Type: ApplicationFiled: October 4, 2011Publication date: April 12, 2012Applicant: DENSO CORPORATIONInventors: Kazuyoshi OBAYASHI, Akira SAKAMOTO
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Publication number: 20110278920Abstract: A power control apparatus is applied to a vehicle provided with a receiving port connected with an external power supply device placed outside the vehicle and on-vehicle electrical loads including a second battery which stores power supplied from the external power supply device via the receiving port. The power control apparatus for vehicles has power supply processing means that performs a power supply process for supplying desired power to the loads during a stop of the vehicle. This power supply processing means predicts cost required to supply the desired power, based on future predicted power cost information, in planning a power supply process needed during the stop of the vehicle. This planned power supply process is performed.Type: ApplicationFiled: April 27, 2011Publication date: November 17, 2011Applicant: DENSO CORPORATIONInventors: Akira SAKAMOTO, Kazuyoshi OBAYASHI
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Publication number: 20110260528Abstract: A power supply apparatus for a vehicle supplies/charges electric power to/from a power supply unit. The vehicle includes a first power-inverter circuit, a capacitor, high-resistance and low-resistance electric-paths between the capacitor and a battery, a first switching unit opening/closing the electric-paths, and a unit operating the first switching unit, when connecting between the battery and the first power-inverter circuit, in such a manner that after the high-resistance electric path is closed and the low-resistance electric path is opened, the high-resistance electric-path is opened and the low-resistance electric-path is closed.Type: ApplicationFiled: April 25, 2011Publication date: October 27, 2011Applicant: DENSO CORPORATIONInventors: Kazuyoshi OBAYASHI, Akira SAKAMOTO, Atsuyuki HIRUMA, Masahito MIZUKOSHI, Jun ISHII, Mitsuru FUJITA
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Publication number: 20110260531Abstract: A power supply apparatus for a vehicle is provided which supplies electric power to a power supply unit and charges electric power from the power supply unit via a power port. The vehicle includes a plurality of power inverter circuits which are connected to a common storage unit in parallel. The plurality of power inverter circuits include an electric power transferring power inverter circuit connected to the power port via an electric power transferring electric path, and are divided into a first category including the electric power transferring power inverter circuit and a second category. The power supply apparatus includes a connection prohibiting unit which realizes a state in which the power inverter circuit included in the first category is electrically connected to the storage unit, and the power inverter circuit included in the second category is disconnected from the storage unit.Type: ApplicationFiled: April 26, 2011Publication date: October 27, 2011Applicant: DENSO CORPORATIONInventors: Kazuyoshi OBAYASHI, Akira SAKAMOTO, Atsuyuki HIRUMA, Masahito MIZUKOSHI, Jun ISHII, Mitsuru FUJITA
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Patent number: 8001799Abstract: In an air-conditioning system for a vehicle, which has multiple heat sources (an evaporator and a heat accumulator), either one of the heat sources, for which the input energy amount for the unit cooling capacity is smaller than that for the other heat source, is preferentially used for performing the cooling operation, an energy amount for the air-conditioning operation can be reduced.Type: GrantFiled: July 11, 2007Date of Patent: August 23, 2011Assignee: Denso CorporationInventors: Kazuyoshi Obayashi, Keisuke Tani, Katsunori Tanaka, Naoki Yamamoto, Takeshi Shimoyama, Yukihiro Yamashita
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Publication number: 20110004364Abstract: In a hybrid vehicle, a target rotational speed and a target torque or a target operation point of an engine are set to a predetermined optimal efficiency rotational speed and a predetermined optimal efficiency torque that enable the engine to be operated efficiently when the engine is operated while a state of charge of the battery is equal to or more than a control-center state of charge after a start of a driving of the vehicle. Then, the engine and motors are controlled so that the engine is operated at the target operation point and a torque equivalent to a torque demand is output to a ring gear shaft or an axle.Type: ApplicationFiled: October 16, 2008Publication date: January 6, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroki Sawada, Kazuyoshi Obayashi
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Publication number: 20100312425Abstract: An energy management apparatus is used to manage energy to be supplied to a system. A paid energy resource can be supplied to the system from the outside. The system is provided with two or more functional device units realizing a specific function using the input energy and adapted to satisfy an external request using at least one of the two or more functional device units such that supply of energy to the functional device units can be controlled. In the apparatus, a standardizing means standardizes input energy of each of the two or more functional device units in terms of the cost of the paid energy resource required for producing the input energy. In addition, a determining means determines to which of the two or more functional device units a predetermined quantity of energy should be fed such that the cost incurred in the system can be reduced.Type: ApplicationFiled: June 7, 2010Publication date: December 9, 2010Applicant: DENSO CORPORATIONInventors: Kazuyoshi OBAYASHI, Akira Sakamoto