Patents by Inventor Toshiyuki Innami
Toshiyuki Innami 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: 20190031191Abstract: A cruise control apparatus according to the present invention comprises a curve shape detection unit that detects the shape of a curve, an estimation trajectory calculation means that, on the basis of vehicle speed, calculates an estimated trajectory that satisfies a relationship in which a G-G diagram, which is a relationship between lateral acceleration and longitudinal acceleration, draws an arc, and a steering start point determination unit that determines a steering start point in front of a curve so that the estimated trajectory falls within the curve.Type: ApplicationFiled: January 13, 2017Publication date: January 31, 2019Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Seiichi SATOH, Toshiyuki INNAMI, Junya TAKAHASHI, Yuki AKIYAMA
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Patent number: 10065622Abstract: A second ECU determines whether or not there is an abnormality in a hydraulic-pressure sensor in a first cycle based on a detection value of the hydraulic-pressure sensor, and outputs a signal indicating a determination of an occurrence of the abnormality to a first ECU via a signal line when determining the occurrence of the abnormality in the hydraulic-pressure sensor. The first ECU receives the detection value of the hydraulic-pressure sensor through communication from the second ECU via the signal line to determine whether or not there is the abnormality in the hydraulic-pressure sensor in a second cycle that is shorter than the first cycle. When determining that the hydraulic-pressure sensor is abnormal, the first ECU controls driving of an electric actuator based on a braking command from an operation-amount detection sensor without using the detection value of the hydraulic-pressure sensor determined to be abnormal.Type: GrantFiled: September 26, 2013Date of Patent: September 4, 2018Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Masayuki Kikawa, Daisuke Goto, Kentaro Ueno, Toshiyuki Innami, Tatsuji Ohkubo
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Publication number: 20180086340Abstract: Provided is a travel control device for a vehicle such that comfortable and safe control for the vehicle is possible without disturbing the driver. The travel control device for the vehicle is provided with a control command computation unit for calculating a steering assist amount for assisting the steering of the vehicle and an acceleration command value for controlling braking and driving forces of the vehicle.Type: ApplicationFiled: March 16, 2016Publication date: March 29, 2018Inventors: Keiichiro NAGATSUKA, Toshiyuki INNAMI
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Patent number: 9919603Abstract: The present invention improves emergency evasion performance. An operation control system for a vehicle that is provided with a risk-potential determining unit that determines the risk potential of a vehicle on the basis of external environment information and/or vehicle information, a friction braking unit that applies friction braking force to the vehicle, and a regenerative braking device that applies regenerative braking force to the vehicle, the operation control system being provided with a control value determining unit that determines a first control value that is for determining the size of the friction braking force and determines a second control value that is for determining the size of the regenerative braking force. The control value determining unit determines at least the first control value on the basis of the risk potential determined by the risk-potential determining unit.Type: GrantFiled: January 28, 2015Date of Patent: March 20, 2018Assignee: Hitachi Automotive Systems, Ltd.Inventors: Makoto Yamakado, Keiichiro Nagatsuka, Junya Takahashi, Mitsuhide Sasaki, Toshiyuki Innami, Mikio Ueyama
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Publication number: 20170305416Abstract: The purpose of the present invention is to provide a device and method for controlling vehicle motion and a vehicle equipped with the device, such that driving force and/or braking force is properly distributed between front wheels and rear wheels so that steering characteristics are made suitable and controllability and stability improve. This device comprises a means for controlling braking and/or driving force distribution between the front wheels and rear wheels of a vehicle such that when the absolute value of lateral acceleration of the vehicle increases, the distribution to the front wheels is made smaller, and when the absolute value of lateral acceleration of the vehicle decreases, the distribution to the front wheels is made larger.Type: ApplicationFiled: July 27, 2015Publication date: October 26, 2017Inventors: Makoto YAMAKADO, Toshiyuki INNAMI, Keiichiro NAGATSUKA
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Publication number: 20160347181Abstract: The present invention improves emergency evasion performance. An operation control system for a vehicle that is provided with a risk-potential determining unit that determines the risk potential of a vehicle on the basis of external environment information and/or vehicle information, a friction braking unit that applies friction braking force to the vehicle, and a regenerative braking device that applies regenerative braking force to the vehicle, the operation control system being provided with a control value determining unit that determines a first control value that is for determining the size of the friction braking force and determines a second control value that is for determining the size of the regenerative braking force. The control value determining unit determines at least the first control value on the basis of the risk potential determined by the risk-potential determining unit.Type: ApplicationFiled: January 28, 2015Publication date: December 1, 2016Inventors: Makoto YAMAKADO, Keiichiro NAGATSUKA, Junya TAKAHASHI, Mitsuhide SASAKI, Toshiyuki INNAMI, Mikio UEYAMA
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Patent number: 9278676Abstract: According to the present invention, limited electric power is consumed so as to achieve long-lasting use of electric power during brake control with the use of an auxiliary power supply source when there is a malfunction of a vehicle power supply source. In addition, a brake control device for ensuring responsiveness at the beginning of braking or when emergency braking is necessary is provided. The brake control device of the present invention is a brake control device for detecting electric signals generated depending on the degree of brake-pedal operation and calculating the driver's demanded braking force based on the electric signals so as to generate the demanded braking force, which comprises an auxiliary power supply source for supplying electric power to the brake control device when there is a malfunction of a vehicle power supply source and controls braking depending on the charged capacity of the auxiliary power supply source.Type: GrantFiled: February 25, 2010Date of Patent: March 8, 2016Assignee: Hitachi Automotive Systems, Ltd.Inventors: Kimio Nishino, Toshiyuki Innami, Norikazu Matsuzaki, Masayuki Kikawa, Ayumu Miyajima, Toshiyuki Ajima
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Patent number: 8886433Abstract: An electric braking control apparatus for controlling an electric braking apparatus which includes a brake pad, a motor which generates a rotational torque, and a rotation/linear motion conversion mechanism which causes the brake pad to generate a pressing force based on the torque. The braking control apparatus includes an inverter which converts and outputs an electric current supplied from a power supply to the motor, and a microcomputer that receives power from the power supply, detects the value of a voltage applied from the power supply to the inverter, and controls the electric current output from the inverter depending on a result of the detection.Type: GrantFiled: October 22, 2007Date of Patent: November 11, 2014Assignee: Hitachi, Ltd.Inventors: Yasufumi Konishi, Toshiyuki Innami, Satoru Kuragaki, Takafumi Suzuki
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Patent number: 8833869Abstract: A brake system which can secure quietness in a passenger compartment is provided. A vehicle brake system 1 includes a brake assist device 2 which boosts a pressing force on a brake pedal 5 by drive of a motor 31, and an assist control unit 6 which controls the motor 31. The assist control unit 6 changes responsiveness of the motor 31 in accordance with a vehicle speed, and sets a dead zone amount and a filtering value to large values in a region with a low vehicle speed. Thereby, responsiveness of a boosting operation of the motor 31 to the operation of the brake pedal is made low, and a rotational variation and a vibration are prevented from occurring to the motor 31 by a minute variation of a detection signal of a stroke sensor 14 during low-speed traveling or stoppage of traveling.Type: GrantFiled: February 18, 2010Date of Patent: September 16, 2014Assignee: Hitachi Automotive Systems, Ltd.Inventors: Norikazu Matsuzaki, Toshiyuki Innami, Kimio Nishino, Ayumu Miyajima, Toshiyuki Ajima, Masayuki Kikawa
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Publication number: 20140095044Abstract: A second ECU determines whether or not there is an abnormality in a hydraulic-pressure sensor in a first cycle based on a detection value of the hydraulic-pressure sensor, and outputs a signal indicating determination of occurrence of the abnormality to a first ECU via signal line when determining occurrence of the abnormality in the sensor. The first ECU receives the detection value of the hydraulic-pressure sensor through communication from the second ECU via the signal line to determine whether or not there is the abnormality in the hydraulic-pressure sensor in a second cycle shorter than the first cycle. When determining that the hydraulic-pressure sensor is abnormal, the first ECU controls driving of an electric actuator based on a braking command from an operation-amount detection sensor without using the detection value of the hydraulic-pressure sensor determined as abnormal.Type: ApplicationFiled: September 26, 2013Publication date: April 3, 2014Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Masayuki KIKAWA, Daisuke GOTO, Kentaro UENO, Toshiyuki INNAMI, Tatsuji OHKUBO
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Patent number: 8672808Abstract: Provided is a brake control apparatus for a vehicle which detects an amount of brake-pedal operation by means of an electric signal, and then calculates a braking force demanded by a driver from the electric signal, and thereby generates the demanded braking force. A control mode for a braking force is switched from a normal control mode to a stationary-vehicle control mode, if a determination that the vehicle is in a stationary state is followed by another determination that an electric signal corresponding to an actual braking force exceeds a command value for a stationary-vehicle braking force while the vehicle is in the stationary state. The control mode for a braking force is switched from the stationary-vehicle control mode to the normal control mode, if it is determined that the demanded braking force becomes smaller than the command value for the stationary-vehicle braking force.Type: GrantFiled: July 30, 2009Date of Patent: March 18, 2014Assignee: Hitachi Automotive Systems, Ltd.Inventors: Kimio Nishino, Toshiyuki Innami, Norikazu Matsuzaki, Shingo Nasu, Ayumu Miyajima
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Patent number: 8662602Abstract: A brake control apparatus for a vehicle includes: a master cylinder for raising a wheel cylinder pressure according to operation of a brake pedal; a booster for raising the wheel cylinder pressure by operating the master cylinder independently of operation of the brake pedal; a pressure regulator provided with a hydraulic pump for raising the wheel cylinder pressure independently of operation of the master cylinder; and a control section including: a first controller for controlling the booster; and a second controller for controlling the pressure regulator. The control section detects that at least one of the booster and the first controller is in a state of malfunction; selects one of backup modes according to the state of malfunction, wherein the backup modes restrict operation of at least one of the booster and the pressure regulator in different manners; and controls the wheel cylinder pressure in the selected backup mode.Type: GrantFiled: December 29, 2011Date of Patent: March 4, 2014Assignee: Hitachi, Ltd.Inventors: Kimio Nishino, Toshiyuki Innami, Kenichiro Matsubara, Toshiharu Sugawara
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Patent number: 8538653Abstract: Disclosed is a brake control apparatus which includes a brake booster for augmenting deceleration, and which addresses the problem in conventional brake control apparatuses that deceleration and pedal reaction force depend on driver brake pedal input, and thus the pedal response and the ride comfort from the feeling of deceleration are affected by the manner in which the brake pedal is actuated by the driver. The brake control apparatus comprises a pedal reaction force generation unit for generating a pedal reaction force on the brake pedal, and a brake control unit for controlling the brake force in such a way as to suppress driver brake input fluctuations, wherein the pedal reaction force generation unit suppresses pedal reaction force fluctuations in accordance with specific deceleration and pedal reaction force characteristics.Type: GrantFiled: October 9, 2009Date of Patent: September 17, 2013Assignee: Hitachi Automotive Systems, Ltd.Inventors: Ayumu Miyajima, Masatsugu Arai, Toshiyuki Innami, Kimio Nishino, Norikazu Matsuzaki, Masayuki Kikawa, Makoto Yamakado
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Patent number: 8506020Abstract: A brake control system that enables accurate brake control is provided that precisely detects a master-cylinder pressure and includes a back-up function. The brake control system includes a master-cylinder operated by a brake operation of a driver; a first mechanism that regulates a pressure inside the master-cylinder according to the brake operation amount; a first control apparatus that controls operation of the first mechanism; a second mechanism that regulates communication of the pressure inside the master-cylinder to a wheel-cylinder; and a second control apparatus that controls operation of the second mechanism and operation of a pump apparatus that increases a pressure communicated to the wheel-cylinder. The first and second control apparatuses each have a power supply circuit and CPU.Type: GrantFiled: February 18, 2010Date of Patent: August 13, 2013Assignee: Hitachi Automotive Systems, Ltd.Inventors: Kimio Nishino, Toshiyuki Innami, Norikazu Matsuzaki, Masayuki Kikawa, Takuya Obata, Takayuki Ohno
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Patent number: 8447487Abstract: Disclosed is a brake control system including a plurality of control apparatuses using a brake operation amount detection apparatus and one brake operation amount detection apparatus. The brake control system includes: a master-cylinder pressure control apparatus that controls a master-cylinder pressure based on a brake operation amount; a wheel-cylinder pressure control apparatus that controls a wheel-cylinder pressure of each wheel; and a master-cylinder pressure detection apparatus that detects a signal for calculating the master-cylinder pressure, the master-cylinder pressure control apparatus controls the master-cylinder pressure based on a detection result detected by the master-cylinder pressure detection apparatus, and the wheel-cylinder pressure control apparatus controls the wheel-cylinder pressure based on the detection result detected by the master-cylinder pressure detection apparatus.Type: GrantFiled: August 12, 2010Date of Patent: May 21, 2013Assignee: Hitachi Automotive Systems, Ltd.Inventors: Kimio Nishino, Toshiyuki Innami, Norikazu Matsuzaki, Masayuki Kikawa
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Patent number: 8360532Abstract: A brake control system for a vehicle includes a first controller having a first brake operation quantity sensor and a second controller executing a different control from that of the first controller and having a second operation quantity sensor. The second controller may include a master pressure acquisition unit for acquiring a master pressure and a failure detection unit for detecting a failure of the first controller on the basis of the brake operation quantity detected by the second brake operation quantity sensor and the master pressure acquired by the master pressure acquisition unit.Type: GrantFiled: February 19, 2009Date of Patent: January 29, 2013Assignee: Hitachi, Ltd.Inventors: Kimio Nishino, Toshiyuki Innami, Yuzo Kadomukai, Shingo Nasu
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Patent number: 8348352Abstract: A brake control system includes a master cylinder to produce a master cylinder pressure, a brake booster to assist the master cylinder, a first control unit to control the booster, a hydraulic modulator to supply a wheel cylinder pressure to a wheel cylinder, and a second control unit to control the hydraulic modulator. The hydraulic modulator includes a pressure source, such as a pump, to increase the wheel cylinder pressure. The first and second control units are connected together by a communication line. The brake control system may further include a boost condition transmitting section to transmit, through the communicating line, a condition of a boost system formed by the brake booster and the first control unit.Type: GrantFiled: August 8, 2008Date of Patent: January 8, 2013Assignee: Hitachi, Ltd.Inventors: Kimio Nishino, Toshiyuki Innami, Kenichiro Matsubara, Toshiharu Sugawara
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Patent number: 8167383Abstract: A brake control apparatus for a vehicle includes: a master cylinder for raising a wheel cylinder pressure according to operation of a brake pedal; a booster for raising the wheel cylinder pressure by operating the master cylinder independently of operation of the brake pedal; a pressure regulator provided with a hydraulic pump for raising the wheel cylinder pressure independently of operation of the master cylinder; and a control section including: a first controller for controlling the booster; and a second controller for controlling the pressure regulator. The control section detects that at least one of the booster and the first controller is in a state of malfunction; selects one of backup modes according to the state of malfunction, wherein the backup modes restrict operation of at least one of the booster and the pressure regulator in different manners; and controls the wheel cylinder pressure in the selected backup mode.Type: GrantFiled: August 8, 2008Date of Patent: May 1, 2012Assignee: Hitachi, Ltd.Inventors: Kimio Nishino, Toshiyuki Innami, Kenichiro Matsubara, Toshiharu Sugawara
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Publication number: 20120091787Abstract: A brake control apparatus for a vehicle includes: a master cylinder for raising a wheel cylinder pressure according to operation of a brake pedal; a booster for raising the wheel cylinder pressure by operating the master cylinder independently of operation of the brake pedal; a pressure regulator provided with a hydraulic pump for raising the wheel cylinder pressure independently of operation of the master cylinder; and a control section including: a first controller for controlling the booster; and a second controller for controlling the pressure regulator. The control section detects that at least one of the booster and the first controller is in a state of malfunction; selects one of backup modes according to the state of malfunction, wherein the backup modes restrict operation of at least one of the booster and the pressure regulator in different manners; and controls the wheel cylinder pressure in the selected backup mode.Type: ApplicationFiled: December 29, 2011Publication date: April 19, 2012Inventors: Kimio NISHINO, Toshiyuki Innami, Kenichiro Matsubara, Toshiharu Sugawara
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Publication number: 20110316329Abstract: According to the present invention, limited electric power is consumed so as to achieve long-lasting use of electric power during brake control with the use of an auxiliary power supply source when there is a malfunction of a vehicle power supply source. In addition, a brake control device for ensuring responsivenss at the beginning of braking or when emergency braking is necessary is provided. The brake control device of the present invention is a brake control device for detecting electric signals generated depending on the degree of brake-pedal operation and calculating the driver's demanded braking force based on the electric signals so as to generate the demanded braking force, which comprises an auxiliary power supply source for supplying electric power to the brake control device when there is a malfunction of a vehicle power supply source and controls braking deppending on the charged capacity of the auxiliary power supply source.Type: ApplicationFiled: February 25, 2010Publication date: December 29, 2011Applicant: Hitachi Automotive Systems, Ltd.Inventors: Kimio Nishino, Toshiyuki Innami, Norikazu Matsuzaki, Masayuki Kikawa, Ayumu Miyajima, Toshiyuki Ajima