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公开(公告)号：US20210316679A1
公开(公告)日：2021-10-14
申请号：US17226374
申请日：2021-04-09
Applicant: DENSO CORPORATION
Inventor： Tetsuo MORITA
IPC: B60R16/033 , H02H3/08 , H02J1/10 , H02J7/14 , H02J7/34
Abstract: In a power supply system, a first route includes a first power supply connected to a first load. A second route includes a second power supply connected to a second load. A connection path connects the first and second routes at a connection point. The first power supply includes a voltage generator generating an operating voltage operating the first and second loads. The second power supply includes an electrical storage device charging based on power supplied from the voltage generator. A switching circuit includes a first switch having a diode component with an anode and a cathode being directed to the electrical storage device and the connection path, respectively, and is disposed between the connection point and the electrical storage device. A switch state controller outputs a switch-off command to the first switch when the electrical storage device is in the fully charged condition.
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公开(公告)号：US20240010142A1
公开(公告)日：2024-01-11
申请号：US18139995
申请日：2023-04-27
Applicant: DENSO CORPORATION
Inventor： Tetsuo MORITA
IPC: B60R16/033 , H02J7/34 , H02J9/06 , H01M10/44 , H01M10/48
CPC classification number: B60R16/033 , H02J7/34 , H02J9/068 , H01M10/44 , H01M10/48 , H01M2220/20
Abstract: A power supply system includes: a first system having a first power supply; a second system having a second power supply; and an inter-system switch provided in a connection path connecting the first and second systems. First and second paths are provided in parallel between a connection point, at which the connection path is connected with the second system, and the second power supply. The power supply system further includes: a charging unit provided in the first path to charge, with the inter-system switch closed, a storage battery of the second power supply; a discharge restriction unit provided in the second path to restrict discharge of the storage battery; an abnormality determination unit that determines whether an abnormality has occurred in the discharge restriction unit; and a use restriction unit that restricts use of the second power supply upon determination that an abnormality has occurred in the discharge restriction unit.
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公开(公告)号：US20170294854A1
公开(公告)日：2017-10-12
申请号：US15483229
申请日：2017-04-10
Applicant: DENSO CORPORATION
Inventor： Tetsuo MORITA , Shinsuke KAWAZU
CPC classification number: H02P3/08 , B60K6/26 , B60K2006/268 , B60Y2200/92 , B60Y2300/192 , B60Y2400/60 , B60Y2400/61 , F02N11/006 , F02N11/04 , F02N11/0814 , F02N11/0862 , F02N11/10 , F02N11/101 , F02N2011/0896 , F02N2200/063 , F02N2250/02 , F02N2300/2011 , H02H1/00 , H02P29/024 , Y10S903/906
Abstract: A control apparatus includes a first determination section determining whether a power-supply voltage has decreased below a first threshold value, an interruption section interrupting a current flow to an inverter if the voltage has decreased below the first threshold value, a second determination section that determining whether the power-supply voltage has increased above a second threshold value, an interruption releasing section releasing the interruption based on the fact that the voltage has increased above the second threshold value, a count section counting the number of interruptions, a limiting section determining whether the decrease in the power-supply voltage is caused by a first factor of an electric rotating machine or a second factor, and limits the counting if the decrease in the power-supply voltage is caused by the second factor, and a third determination section determining whether the interruption is allowed to be released based on the number of interruptions.
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公开(公告)号：US20130238225A1
公开(公告)日：2013-09-12
申请号：US13788011
申请日：2013-03-07
Applicant: DENSO CORPORATION
Inventor： Tetsuo MORITA
IPC: F02D41/04
CPC classification number: F02D41/042 , F02N11/0818 , F02N11/0833 , F02N2200/023 , F02N2200/14 , Y02T10/48
Abstract: An engine control apparatus is provided for controlling an engine of a motor vehicle. The engine control apparatus is configured to automatically stop the engine by stopping combustion in the engine when a predetermined automatic stop condition is satisfied and restart the engine by driving a starter when a predetermined restart condition is satisfied. The engine control apparatus includes a calculator and a condition changer. The calculator calculates an accumulated value by accumulating a starter deterioration-related value each time the engine is started or restarted by the starter; the accumulated value is indicative of the degree of deterioration of the starter. The condition changer changes, when the accumulated value has increased to reach a threshold value, the predetermined automatic stop condition so as to lower the frequency of the engine being automatically stopped and restarted and thereby suppress deterioration of the starter.
Abstract translation: 提供一种用于控制机动车辆的发动机的发动机控制装置。 发动机控制装置被构造成当满足预定的自动停止条件时通过停止发动机中的燃烧来自动停止发动机，并且当满足预定的重新启动条件时通过驱动起动器来重新启动发动机。 发动机控制装置包括计算器和条件转换器。 计算器通过在发动机每次起动器启动或重新启动时累积起动器劣化相关值来计算累积值; 累积值表示起动器的劣化程度。 当累积值增加达到阈值时，条件改变器改变，预定的自动停止条件使发动机的频率自动停止并重启，从而抑制起动器的劣化。
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公开(公告)号：US20230283066A1
公开(公告)日：2023-09-07
申请号：US18131501
申请日：2023-04-06
Applicant: DENSO CORPORATION
Inventor： Tetsuo MORITA
IPC: H02H7/20 , B60R16/023
CPC classification number: H02H7/20 , B60R16/0238 , B60R16/0232
Abstract: A power supply system which includes a first system, a second system, and a system-to-system switch. The first system delivers electrical power from a first power supply to an electrical load through a first power feeding path. The second system delivers electrical power from a second power supply to the electrical load through a second power feeding path. The system-to-system switch is arranged in a connecting path which connects the first and second power feeding paths together. The power supply system also has an in-system switch which is disposed in the second power feeding path between a junction of the second power feeding path and the connecting path and the second power supply. When it is determined that a malfunction has occurred in the second system in a condition where the system-to-system switch and the in-system switch are closed, the system-to-system switch is opened. The power supply system controls an opening-closing operation of the in-system switch when the system-to-system switch is opened, thereby limiting flow of electrical current from the second power supply to the second system and prevents voltages applied to the system-to-system switch from undesirably dropping due to a surge voltage developed in the second system which arise from the limitation of flow of the electrical current.
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Patent Agency Ranking
公开(公告)号：US20230075428A1
公开(公告)日：2023-03-09
申请号：US17986320
申请日：2022-11-14
Applicant: DENSO CORPORATION
Inventor： Tetsuo MORITA
IPC: B60R16/033 , H02J1/10 , H02J7/00
Abstract: In a power supply system, a first system includes a first power supply connected to a first load. A second system includes a second power supply connected to a second load. A connection path connects the systems. An intersystem switch is provided on the connection path. A control apparatus sets the intersystem switch to a closed state and sets a voltage of the first power supply to be higher than a voltage of the second power supply to be a first state in which power supply is performed from the first power supply to the loads. In response to a reverse-direction current from the second system to the first system flowing to the connection path in the first state, the control apparatus sets the intersystem switch to an open state to be a second state in which power supply is performed from the second power supply to the second load.
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公开(公告)号：US20210320506A1
公开(公告)日：2021-10-14
申请号：US17226246
申请日：2021-04-09
Applicant: DENSO CORPORATION
Inventor： Tetsuo MORITA
Abstract: An inductance component has a given value causing a time constant of a circuit composed of one of first and second routes in which an abnormality does not occur and a connection path connecting the first and second routes not to allow a voltage of one of loads disposed in the other one of the routes to decrease to less than a lower limit of an operating voltage of one of loads during a shut-off period, which starts from a time when it is determined by an abnormality determiner that an abnormality has occurred in any one of the first route and the second route to a time when an inter-route switch enters a switched off state upon receiving a switch-off command from a state controller.
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公开(公告)号：US20160208762A1
公开(公告)日：2016-07-21
申请号：US15000707
申请日：2016-01-19
Applicant: DENSO CORPORATION
Inventor： Tetsuo MORITA
IPC: F02N11/08
CPC classification number: F02N11/14 , F02N11/006 , F02N11/04 , F02N11/0818 , F02N11/0862 , F02N2011/0896 , F02N2200/022 , F02N2200/063 , F02N2200/0814
Abstract: An electric power control apparatus for a vehicle includes a first determination section determining an activation of a jump start, a second determination section determining a connection of an external power source having a higher voltage than a battery voltage of the vehicle, a third determination section determining whether the engine switches to an engine start completed state, a keep section keeping an electric power generation unit of the vehicle in an electric power generation deactivated state when determining that the engine switches to the engine start completed state, a fourth determination section determining a disconnection of the external power source, and an instruction section instructing an immediate activation of the electric power generation to the electric power generation unit when determining the disconnection of the external power source.
Abstract translation: 一种用于车辆的电力控制装置，包括：确定跳跃开始的激活的第一判定部，确定具有比车辆的电池电压高的电压的外部电源的连接的第二判定部;第三判定部， 确定发动机切换到发动机起动完成状态时，将发动机切换到发动机起动完成状态的保持部，保持车辆的发电单元处于发电停止状态，第四判定部， 以及在确定外部电源的断开时指示立即激活对发电单元的发电的指令部。
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公开(公告)号：US20230318345A1
公开(公告)日：2023-10-05
申请号：US18206719
申请日：2023-06-07
Applicant: DENSO CORPORATION
Inventor： Tetsuo MORITA
CPC classification number: H02J7/007182 , H02J7/00714 , B60L50/51 , B60L2240/547 , B60L2240/549
Abstract: A power source system has a first system having a first power supply path and a first power source supplying a power source voltage, a second system having a second power supply path and a second power source having a battery being charged by the power source voltage, an intersystem switch, a switching controller switching the intersystem switch between an open state and a closed state, and a charging discharging part, arranged between the second power source and a connection node of a connection path on the second power supply path. The charging discharging part performs charging of the battery by the power source voltage and discharging of the battery based on a discharging request after completion of battery charging, and performs charging of the battery before the switching controller switches the intersystem switch to the open state from the closed state when overvoltage occurs in any system under the closed state of the intersystem switch.
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公开(公告)号：US20230072786A1
公开(公告)日：2023-03-09
申请号：US17983574
申请日：2022-11-09
Applicant: DENSO CORPORATION
Inventor： Tetsuo MORITA
Abstract: A power supply system includes: electrical loads; a first system including a first power supply that outputs a power supply voltage; a second system including a second power supply that includes a storage battery; an inter-system switch; an abnormality determination unit that determines whether an abnormality has occurred in the first system; and a state control unit that opens the inter-system switch when it is determined that an abnormality has occurred in the first system. A first path and a second path are provided in parallel with each other between a connection point and the second power supply. In the first path, there is provided an electric power converter. The storage battery is charged to a voltage higher than the lower limit of drive voltages of the electrical loads. Through the second path, the voltage of the storage battery can be applied, bypassing the power converter, to the electrical loads.
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