Patents by Inventor Yuichi Kuramochi
Yuichi Kuramochi 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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Publication number: 20060180365Abstract: Motors are disposed in an unsprung part of the vehicle with reference to a suspension. Drive circuits which rectangular-wave drive the motors are disposed in the unsprung part. Voltage control circuits which control voltage supplied from a battery to the drive circuits are disposed in the sprung part of the vehicle with reference to the suspension. The motors are three-phase synchronous motors.Type: ApplicationFiled: August 25, 2005Publication date: August 17, 2006Applicant: Hitachi Ltd.Inventors: Toshiyuki Innami, Hiroyuki Sato, Yuuzou Kadomukai, Daisuke Yasukawa, Yuichi Kuramochi, Hideki Miyazaki
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Publication number: 20060163939Abstract: An electrically powered brake system capable of performing a self-diagnosis of elements of the electrically brake system to diagnose a failure before a vehicle is driven is provided. The electrically powered brake system having a parking brake having a conversion mechanism 6 converting a rotary motion of a motor 2 into a linear motion, propelling a piston 7 according to the rotation of a rotor 2A of the motor 2 by the conversion mechanism, pressing brake pads 3 and 4 against a disc rotor 5 by the piston to generate a braking force, and retaining the braking force by a locking mechanism 10 has a control unit 20 performing a diagnosis of elements constituting the system during actuation of the parking brake. The control unit performs a diagnosis of a fail safe relay 26 receiving the supply of electric power of the motor, and performs diagnoses of a braking force sensor 8, a rotation angle detecting sensor 9 and a current sensor.Type: ApplicationFiled: January 26, 2006Publication date: July 27, 2006Inventors: Yuichi Kuramochi, Toshiyuki Innami
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Publication number: 20060028060Abstract: When the theft occurs, all wheels of an automobile or one wheel or more is mechanically locked to prevent the self-running theft or the tow-theft. There are used a theft detection unit which detects the theft based on the detection of the states of the various doors opening, the vibration of the vehicle body, the unlocking by using something except the regular key, the engine starting in the unlocked state, a braking force control means which locks all wheels or one wheel or more based on a signal from the theft detection means, and a braking force generation means which mechanically holds braking force while locking. When the theft occurs, all wheels or one wheel or more are locked.Type: ApplicationFiled: August 2, 2005Publication date: February 9, 2006Applicant: Hitachi, Ltd.Inventors: Yuichi Kuramochi, Toshio Manaka, Kimio Nishino
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Publication number: 20050189890Abstract: A relay switch for selectively connecting a power supply line of an inverter to a ground line is inserted between the inverter and a power source, and a power consumption unit such as a resistor element is inserted between the relay switch and ground line.Type: ApplicationFiled: February 9, 2005Publication date: September 1, 2005Applicant: Hitachi, Ltd.Inventors: Yuichi Kuramochi, Toshio Manaka
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Publication number: 20050149247Abstract: To provide a headway control system, in which a congestion following processing can be started by the same operation as in ordinary driving. An arrangement is provided that lets a following control unit 10 to start a control to follow a preceding vehicle on condition that a characteristic value, which is produced in a host vehicle when a driver starts moving the host vehicle, is detected in congested traffic. Acceleration or a vehicle speed may be used as the characteristic value. Another possible arrangement is to start the following control on condition that a variation in an engine of the host vehicle, which is generated in the host vehicle when the driver operates to start moving the host vehicle, is detected in congested traffic.Type: ApplicationFiled: February 28, 2005Publication date: July 7, 2005Applicant: HITACHI, LTD.Inventors: Yuichi Kuramochi, Toshio Manaka, Hidefumi Adachi
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Patent number: 6876915Abstract: To provide a headway control system, in which a congestion following processing can be started by the same operation as in ordinary driving. An arrangement is provided that lets a following control unit 10 to start a control to follow a preceding vehicle on condition that a characteristic value, which is produced in a host vehicle when a driver starts moving the host vehicle, is detected in congested traffic. Acceleration or a vehicle speed may be used as the characteristic value. Another possible arrangement is to start the following control on condition that a variation in an engine of the host vehicle, which is generated in the host vehicle when the driver operates to start moving the host vehicle, is detected in congested traffic.Type: GrantFiled: September 26, 2002Date of Patent: April 5, 2005Assignee: Hitachi, Ltd.Inventors: Yuichi Kuramochi, Toshio Manaka, Hidefumi Adachi
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Publication number: 20050035656Abstract: A power supplying apparatus and method for a vehicle are disclosed. A plurality of loads and a plurality of power supplies are connected to each other in such a manner that one of the loads is connected to a plurality of the power supplies, and one of the plurality of the power supplies is connected to a plurality of the loads. Further, the power supplies and the loads are connected through a breaker unit for electrically disconnecting the circuit under predetermined conditions and a unidirectional conductive unit for allowing the current to flow in one direction and blocking the current in the opposite direction.Type: ApplicationFiled: May 14, 2004Publication date: February 17, 2005Inventors: Yuichi Kuramochi, Toshio Manaka, Kenichiro Matsubara
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Publication number: 20040257732Abstract: An electric power supply system for a vehicle has an electric power line wired in a loop configuration. From the electric power line power is supplied to a load, and to another system which supplies control system power supply. One shutdown circuit is provided in a module connected to the loop configured power supply line. When the electric power line and the load are short circuited, the shutdown can isolate and shut down only the failure point. Further, when the car is not in use, by stopping the power supply to the load, current consumption can be restrained. In response to detection of a ground short and a failure of a connection of a connector, an over-current prevention of an electric power line, a simple construction can be provided and a low current consumption can be realized.Type: ApplicationFiled: July 15, 2004Publication date: December 23, 2004Applicants: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.Inventors: Tatsuya Yoshida, Hiroyuki Saito, Shinichi Sakamoto, Mitsuru Kon-i, Yuichi Kuramochi, Kaneyuki Okamoto, Ichiro Ohsaka, Kiyoshi Horibe
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Patent number: 6791207Abstract: An electric power supply system for a vehicle has an electric power line wired in a loop configuration. From the electric power line power is supplied to a load, and to another system which supplies control system power supply. One shutdown circuit is provided in a module connected to the loop configured power supply line. When the electric power line and the load are short circuited, the shutdown can isolate and shut down only the failure point. Further, when the car is not in use, by stopping the power supply to the load, current consumption can be restrained. In response to detection of a ground short and a failure of a connection of a connector, an over-current prevention of an electric power line, a simple construction can be provided and a low current consumption can be realized.Type: GrantFiled: July 2, 1999Date of Patent: September 14, 2004Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.Inventors: Tatsuya Yoshida, Hiroyuki Saito, Shinichi Sakamoto, Mitsuru Kon-i, Yuichi Kuramochi, Kaneyuki Okamoto, Ichiro Ohsaka, Kiyoshi Horibe
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Publication number: 20040093145Abstract: After cruise control is restored by an accelerating operation, the driver set speed is changed according to the displacement of the accelerator pedal. It becomes possible to reduce the driver set speed due to release of the accelerator pedal, that is, the vehicle can be decelerated by the engine. Even if the cruise control is restored, the cruise control is not conducted and the vehicle can be decelerated by the engine if the driver wants to decelerate the vehicle by the release of the accelerator pedal.Type: ApplicationFiled: November 6, 2003Publication date: May 13, 2004Applicant: Hitachi, Ltd.Inventors: Taisetsu Tanimichi, Kimihiro Yamai, Yuichi Kuramochi, Hidefumi Adachi, Eiichirou Kondou, Kentarou Ueno, Takafumi Suzuki
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Publication number: 20040030969Abstract: It is an object of the present invention to accurately extract all failures occurring in a unit as hard signals and use the hard signals to completely cut off the faulty unit's communications for the purpose of maintaining the communications among the other units.Type: ApplicationFiled: May 13, 2003Publication date: February 12, 2004Inventors: Yuichi Kuramochi, Toshio Manaka, Hiroyuki Saito, Tatsuya Yoshida
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Publication number: 20030171857Abstract: To provide a headway control system, in which a congestion following processing can be started by the same operation as in ordinary driving.Type: ApplicationFiled: September 26, 2002Publication date: September 11, 2003Applicant: Hitachi, Ltd.Inventors: Yuichi Kuramochi, Toshio Manaka, Hidefumi Adachi
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Publication number: 20030075980Abstract: An electric power line is wired with a loop shape and from this electric power line a power supply for a load is supplied, and according to another system against this electric power line, a control system power supply is supplied. One shutdown means is provided in a module which is connected to the loop shape power supply supplying line, when the electric power line and the load become a short, by separating using the shutdown means, only a fail point can be separated. Further, during a sleep time, by stopping the power supply supplying to the load, a consumption current can be restrained. According to a detection a ground short and a fail on a connection of a connector, an over-current prevention of an electric power line a simple construction can be improved and a low consumption current can be realized.Type: ApplicationFiled: July 2, 1999Publication date: April 24, 2003Inventors: TATSUYA YOSHIDA, HIROYUKI SAITO, SHINICHI SAKAMOTO, MITSURU KON-I, YUICHI KURAMOCHI, KANEYUKI OKAMOTO, ICHIRO OHSAKA, KIYOSHI HORIBE
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Patent number: 6528899Abstract: A battery is disposed at the portion beneath the rear seat of a vehicle. The positive electrode of the battery is connected through a power bus for power supply to a rear junction block (R-JB). A rear integration module (RIM) can be coupled to the R-JB through a plug-in operation. The positive electrode of the battery is also connected through a power bus to an under dash junction block (UD-JB). A body control module (BCM) can be coupled to the UD-JB through a plug-in operation. The power bus connection terminal of the UD-JB is connected to a fuse relay block (F-JB) through a power bus. A front integration module (FIM) can be coupled to the F-JB through a plug-in operation. The power bus connection terminal of the F-JB is connected to a starter motor through a power supply line and further connected to an alternator through a power supply line from the starter.Type: GrantFiled: December 16, 1999Date of Patent: March 4, 2003Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.Inventors: Hiroyuki Saito, Mitsuru Koni, Yuichi Kuramochi, Tatsuya Yoshida
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Patent number: 6347274Abstract: A vehicular travel control system performs automatic follow-up control for maintaining a following distance matching with drivability which a driver may feel. The system detects size of a leading vehicle and insolation around the own vehicle. An appropriate following distance deriving means derives the appropriate following distance so that the appropriate following distance becomes longer when the size of the leading vehicle detected by the vehicle size detecting means is large and the appropriate following distance becomes longer at higher brightness detected by the insolation detecting means.Type: GrantFiled: February 27, 2001Date of Patent: February 12, 2002Assignee: Hitachi, Ltd.Inventors: Yuichi Kuramochi, Tatsuya Yoshida, Shinichi Sakamoto, Taisetsu Tanimichi, Yasufumi Konishi
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Publication number: 20010018631Abstract: A vehicular travel control system performs automatic follow-up control for maintaining a following distance matching with drivability which a driver may feel. The system detects size of a leading vehicle and insolation around the own vehicle. An appropriate following distance deriving means derives the appropriate following distance so that the appropriate following distance becomes longer when the size of the leading vehicle detected by the vehicle size detecting means is large and the appropriate following distance becomes longer at higher brightness detected by the insolation detecting means.Type: ApplicationFiled: February 27, 2001Publication date: August 30, 2001Applicant: Hitachi Ltd.Inventors: Yuichi Kuramochi, Tatsuya Yoshida, Shinichi Sakamoto, Taisetsu Tanimichi, Yasufumi Konishi