Patents by Inventor Yoshinori SHIBACHI
Yoshinori SHIBACHI 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: 10308119Abstract: A vehicle power supply control apparatus controls (i) storage of electricity generated by an alternator powered by an internal combustion engine of a vehicle and (ii) main and auxiliary power supplies that supply stored electricity to a load. The apparatus includes a first switch, a second switch, a controller and a switching circuit. The first switch is provided between the main power supply and the alternator. The second switch is provided between the auxiliary power supply and the alternator. The controller controls a connection state of the first switch and a connection state of the second switch based on a state of the vehicle. The switching circuit turns on the first switch and/or the second switch in a case where a first voltage of the main power supply is smaller than a second voltage of the auxiliary power supply by a threshold value or greater.Type: GrantFiled: March 8, 2017Date of Patent: June 4, 2019Assignee: FUJITSU TEN LIMITEDInventor: Yoshinori Shibachi
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Patent number: 9797361Abstract: A power supply device for a vehicle which is used in a vehicle, includes: a first switch unit that is provided between a power generator which is driven by an internal combustion engine of the vehicle and a secondary battery which is connected to the power generator and supplies electric power to a starting device for starting the internal combustion engine; a second switch unit that is provided between the power generator and a capacitor which accumulates electric power supplied by the power generator; and a control unit that controls the connection state of the first switch unit and the connection state of the second switch unit.Type: GrantFiled: November 12, 2015Date of Patent: October 24, 2017Assignee: FUJITSU TEN LIMITEDInventor: Yoshinori Shibachi
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Publication number: 20170297433Abstract: A vehicle power supply control apparatus controls (i) storage of electricity generated by an alternator powered by an internal combustion engine of a vehicle and (ii) main and auxiliary power supplies that supply stored electricity to a load. The apparatus includes a first switch, a second switch, a controller and a switching circuit. The first switch is provided between the main power supply and the alternator. The second switch is provided between the auxiliary power supply and the alternator. The controller controls a connection state of the first switch and a connection state of the second switch based on a state of the vehicle. The switching circuit turns on the first switch and/or the second switch in a case where a first voltage of the main power supply is smaller than a second voltage of the auxiliary power supply by a threshold value or greater.Type: ApplicationFiled: March 8, 2017Publication date: October 19, 2017Applicant: FUJITSU TEN LIMITEDInventor: Yoshinori SHIBACHI
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Publication number: 20160153418Abstract: A power supply device for a vehicle which is used in a vehicle, includes: a first switch unit that is provided between a power generator which is driven by an internal combustion engine of the vehicle and a secondary battery which is connected to the power generator and supplies electric power to a starting device for starting the internal combustion engine; a second switch unit that is provided between the power generator and a capacitor which accumulates electric power supplied by the power generator; and a control unit that controls the connection state of the first switch unit and the connection state of the second switch unit.Type: ApplicationFiled: November 12, 2015Publication date: June 2, 2016Applicant: FUJITSU TEN LIMITEDInventor: Yoshinori SHIBACHI
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Patent number: 9234470Abstract: An idling stop device is mounted on a vehicle. A microcomputer has an idling stop function of automatically stopping an engine of the vehicle when a predetermined stop condition is established and automatically starting the engine when a predetermined start condition is established during the stopping of the engine. A detecting unit detects that a power voltage of the microcomputer, which is obtained by dropping a voltage of a battery of the vehicle is lower than a minimal operation voltage of the microcomputer. A storage unit stores voltage decrease information irrespective of a state of the microcomputer if the power voltage is lower than the minimal operation voltage. A power control unit stops supply of power to some of electrical loads to which power is supplied from the battery when the engine is started, if the voltage decrease information is stored in the storage unit.Type: GrantFiled: February 22, 2011Date of Patent: January 12, 2016Assignee: FUJITSU TEN LIMITEDInventors: Ryoh Izumoto, Motoki Komiya, Yuuichiroh Shimizu, Yoshinori Shibachi
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Patent number: 9014942Abstract: An idling stop device installed in a vehicle includes a microcomputer, a detector, a storage, and a controller. The microcomputer automatically stops an engine of the vehicle when a prescribed stopping condition is satisfied, and automatically activates a starter motor of the engine when a prescribed activating condition is satisfied. The detector detects whether a drive voltage of the microcomputer, which is obtained by dropping a voltage of a battery of the vehicle is less than a threshold value. The storage stores, irrespective of a state of the microcomputer, information indicating that the detector has detected that the drive voltage is less than the threshold value. The controller drops an increasing speed of a current for driving the starter motor when the microcomputer activates the stator motor under the condition that the information is stored in the storage.Type: GrantFiled: March 10, 2011Date of Patent: April 21, 2015Assignee: Fujitsu Ten LimitedInventors: Ryoh Izumoto, Motoki Komiya, Yuichiro Shimizu, Yoshinori Shibachi
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Patent number: 8887684Abstract: An idling stop apparatus is provided which can prevent a voltage of a battery from being lowered even when a microcomputer is reset. In an idling stop apparatus when a reset condition is established, reset information indicating that the reset condition is established is stored in a latch circuit and a microcomputer disables an idling stop function when the reset information is stored. The reset information is stored in the latch circuit even when the microcomputer is being reset or even after the microcomputer is reset. Accordingly, the microcomputer after the reset can disable the idling stop function. As a result, it is possible to prevent the voltage of the battery from being lowered due to the idling stop function.Type: GrantFiled: September 17, 2010Date of Patent: November 18, 2014Assignee: Fujitsu Ten LimitedInventors: Ryoh Izumoto, Motoki Komiya, Yuichiro Shimizu, Yoshinori Shibachi
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Patent number: 8674533Abstract: Engine control device includes a delay unit which delays or cuts off a flow of current from a first current system, which directs current to a coil, to a second current system, which directs current to a starter motor. When a starter switch, which turns the flow of current from the power source to the first current system on or off, is turned on and electricity flows to the first current system, the delay unit delays the current flowing from the first current system to the second current system. When electricity flows to the first current system as a result of a controller having turned a first switch on, the delay unit cuts off the flow of electricity from the first current system to the second current system.Type: GrantFiled: August 24, 2010Date of Patent: March 18, 2014Assignee: Fujitsu Ten LimitedInventors: Yuichiro Shimizu, Yoshinori Shibachi, Ryoh Izumoto, Motoki Komiya
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Patent number: 8655574Abstract: An idling stop device is mounted on a vehicle and automatically stops and starts an engine of the vehicle. A microcomputer has an idling stop function of automatically stopping the engine when a predetermined stop condition is established and automatically starting the engine when a predetermined start condition is established during the stopping of the engine. A detecting unit detects that a power voltage of the microcomputer, which is obtained by dropping a voltage of a battery of the vehicle is lower than a minimum operating voltage of the microcomputer. A storage unit stores voltage reduction information irrespective of a state of the microcomputer if the power voltage is lower than the minimum operating voltage. A power control unit causes a capacitor which stores electric charges corresponding to power for driving a starter motor of the engine to supply power to the starter motor when the engine is started, if the voltage reduction information is stored in the storage unit.Type: GrantFiled: March 14, 2011Date of Patent: February 18, 2014Assignee: Fujitsu Ten LimitedInventors: Ryoh Izumoto, Motoki Komiya, Yuuichiroh Shimizu, Yoshinori Shibachi
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Publication number: 20130006491Abstract: An idling stop device installed in a vehicle includes a microcomputer, a detector, a storage, and a controller. The microcomputer automatically stops an engine of the vehicle when a prescribed stopping condition is satisfied, and automatically activates a starter motor of the engine when a prescribed activating condition is satisfied. The detector detects whether a drive voltage of the microcomputer, which is obtained by dropping a voltage of a battery of the vehicle is less than a threshold value. The storage stores, irrespective of a state of the microcomputer, information indicating that the detector has detected that the drive voltage is less than the threshold value. The controller drops an increasing speed of a current for driving the starter motor when the microcomputer activates the stator motor under the condition that the information is stored in the storage.Type: ApplicationFiled: March 10, 2011Publication date: January 3, 2013Applicant: FUJITSU TEN LIMITEDInventors: Ryoh Izumoto, Motoki Komiya, Yuichiro Shimizu, Yoshinori Shibachi
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Publication number: 20120221229Abstract: An idling stop apparatus is provided which can prevent a voltage of a battery from being lowered even when a microcomputer is reset. In an idling stop apparatus when a reset condition is established, reset information indicating that the reset condition is established is stored in a latch circuit and a microcomputer disables an idling stop function when the reset information is stored. The reset information is stored in the latch circuit even when the microcomputer is being reset or even after the microcomputer is reset. Accordingly, the microcomputer after the reset can disable the idling stop function. As a result, it is possible to prevent the voltage of the battery from being lowered due to the idling stop function.Type: ApplicationFiled: September 17, 2010Publication date: August 30, 2012Applicant: FUJITSU TEN LIMITEDInventors: Ryoh Izumoto, Motoki Komiya, Yuichiro Shimizu, Yoshinori Shibachi
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Publication number: 20120153638Abstract: Engine control device includes a delay unit which delays or cuts off a flow of current from a first current system, which directs current to a coil, to a second current system, which directs current to a starter motor. When a starter switch, which turns the flow of current from the power source to the first current system on or off, is turned on and electricity flows to the first current system, the delay unit delays the current flowing from the first current system to the second current system. When electricity flows to the first current system as a result of a controller having turned a first switch on, the delay unit cuts off the flow of electricity from the first current system to the second current system.Type: ApplicationFiled: August 24, 2010Publication date: June 21, 2012Applicant: FUJITSU TEN LIMITEDInventors: Yuichiro Shimizu, Yoshinori Shibachi, Ryoh Izumoto, Motoki Komiya
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Publication number: 20110224890Abstract: An idling stop device is mounted on a vehicle and automatically stops and starts an engine of the vehicle. A microcomputer has an idling stop function of automatically stopping the engine when a predetermined stop condition is established and automatically starting the engine when a predetermined start condition is established during the stopping of the engine. A detecting unit detects that a power voltage of the microcomputer, which is obtained by dropping a voltage of a battery of the vehicle is lower than a minimum operating voltage of the microcomputer. A storage unit stores voltage reduction information irrespective of a state of the microcomputer if the power voltage is lower than the minimum operating voltage. A power control unit causes a capacitor which stores electric charges corresponding to power for driving a starter motor of the engine to supply power to the starter motor when the engine is started, if the voltage reduction information is stored in the storage unit.Type: ApplicationFiled: March 14, 2011Publication date: September 15, 2011Applicant: FUJITSU TEN LIMITEDInventors: Ryoh IZUMOTO, Motoki KOMIYA, Yuuichiroh SHIMIZU, Yoshinori SHIBACHI
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Publication number: 20110208410Abstract: An idling stop device is mounted on a vehicle. A microcomputer has an idling stop function of automatically stopping an engine of the vehicle when a predetermined stop condition is established and automatically starting the engine when a predetermined start condition is established during the stopping of the engine. A detecting unit detects that a power voltage of the microcomputer, which is obtained by dropping a voltage of a battery of the vehicle is lower than a minimal operation voltage of the microcomputer. A storage unit stores voltage decrease information irrespective of a state of the microcomputer if the power voltage is lower than the minimal operation voltage. A power control unit stops supply of power to some of electrical loads to which power is supplied from the battery when the engine is started, if the voltage decrease information is stored in the storage unit.Type: ApplicationFiled: February 22, 2011Publication date: August 25, 2011Applicant: FUJITSU TEN LIMITEDInventors: Ryoh IZUMOTO, Motoki KOMIYA, Yuuichiroh SHIMIZU, Yoshinori SHIBACHI