Patents by Inventor Mikio Ueyama
Mikio Ueyama 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: 10286910Abstract: Provided is a vehicle running control apparatus capable of controlling a vehicle comfortably while inhibiting an uncomfortable feeling of a driver in consideration of dimensions of longitudinal acceleration requirements for the vehicle. This vehicle running control apparatus includes: a first control command value calculation unit configured to calculate a first control command value that controls vehicle longitudinal acceleration; a second control command value calculation unit configured to calculate a second control command value that controls longitudinal acceleration according to a lateral jerk that acts on the vehicle; a correction determination processing unit configured to determine whether to make correction based on the first control command value and the second control command value; and a correction processing unit configured, when the correction determination processing unit determines that correction is needed, to correct the first control command value based on the second control command value.Type: GrantFiled: June 13, 2014Date of Patent: May 14, 2019Assignee: Hitachi Automotive Systems, Ltd.Inventors: Keiichiro Nagatsuka, Makoto Yamakado, Mitsuhide Sasaki, Mikio Ueyama
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Patent number: 10262534Abstract: When turning right (left) at an intersection and crossing an oncoming vehicle lane, this system makes it possible to avoid blocking travel of or colliding with a moving body moving in the oncoming vehicle lane due to stopping in the oncoming vehicle lane, and to avoid colliding with a moving body after crossing the oncoming vehicle lane. Given two or more moving bodies present in the advancement direction on the path of the local vehicle, the external environment is detected before the local vehicle intersects with the path of a first moving body, which will first intersect the local vehicle path; if at least two moving bodies are detected, i.e.Type: GrantFiled: January 14, 2015Date of Patent: April 16, 2019Assignee: Hitachi Automotive Systems, Ltd.Inventors: Takashi Okada, Mikio Ueyama
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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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Patent number: 9821800Abstract: A processor for a vehicle includes a vehicle yaw moment instruction calculator, and a mode under which yaw moment of the vehicle is controlled. If the vehicle yaw moment instruction value generates the driving forces or the driving torques, the driving forces or driving torques are different between the left and right wheels. If the vehicle yaw moment instruction value generates the braking forces or the braking torques, the braking forces or the braking torques are different between the left and right wheels. The mode operates at least in transit region between daily region and limit region.Type: GrantFiled: March 10, 2017Date of Patent: November 21, 2017Assignee: Hitachi Automotive Systems, Ltd.Inventors: Makoto Yamakado, Mitsuhide Sasaki, Mikio Ueyama, Keiichiro Nagatsuka
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Publication number: 20170183000Abstract: A processor for a vehicle includes a vehicle yaw moment instruction calculator, and a mode under which yaw moment of the vehicle is controlled. If the vehicle yaw moment instruction value generates the driving forces or the driving torques, the driving forces or driving torques are different between the left and right wheels. If the vehicle yaw moment instruction value generates the braking forces or the braking torques, the braking forces or the braking torques are different between the left and right wheels. The mode operates at least in transit region between daily region and limit region.Type: ApplicationFiled: March 10, 2017Publication date: June 29, 2017Inventors: Makoto YAMAKADO, Mitsuhide SASAKI, Mikio UEYAMA, Keiichiro NAGATSUKA
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Patent number: 9643607Abstract: Disclosed is a vehicle motion control system that can control a vehicle without making a driver feel uncomfortable.Type: GrantFiled: December 20, 2013Date of Patent: May 9, 2017Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Keiichiro Nagatsuka, Makoto Yamakado, Mikio Ueyama, Mitsuhide Sasaki
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Patent number: 9623850Abstract: Provided is a motion controlling apparatus for a vehicle that can achieve improvement in drivability, stability, and driving comfort. The apparatus includes a control unit for controlling driving forces of vehicle wheels; a vehicle acceleration/deceleration instruction calculator for calculating an acceleration/deceleration instruction value on the basis of a lateral jerk; a first vehicle yaw moment instruction calculator for calculating a first vehicle yaw moment instruction value on the basis of the lateral jerk; and a second vehicle yaw moment instruction calculator for calculating a second vehicle yaw moment instruction value on the basis of lateral slip information.Type: GrantFiled: February 12, 2016Date of Patent: April 18, 2017Assignee: Hitachi Automotive Systems, Ltd.Inventors: Makoto Yamakado, Mitsuhide Sasaki, Mikio Ueyama, Keiichiro Nagatsuka
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Patent number: 9598077Abstract: Provided is a vehicle movement control system which does not cause a discomfort feeling at a normal time and securely assists a driver at the time of emergency avoidance steering. The vehicle movement control system includes: a risk potential estimation unit which estimates a risk potential of a vehicle based on input environmental information and vehicle information; a vehicle longitudinal movement control unit which generates a longitudinal movement control command of the vehicle based on a lateral jerk of the vehicle and a predetermined gain; a vehicle yawing movement control unit which generates a yawing movement control command of the vehicle based on the lateral jerk of the vehicle and the predetermined gain; and a ratio adjustment unit which adjusts a ratio between the longitudinal movement control command of the vehicle and the yawing movement control command of the vehicle, wherein the ratio adjustment unit adjusts the ratio based on the risk potential estimated by the risk potential estimation unit.Type: GrantFiled: October 3, 2014Date of Patent: March 21, 2017Assignee: Hitachi Automotive Systems, Ltd.Inventors: Makoto Yamakado, Keiichiro Nagatsuka, Mitsuhide Sasaki, Mikio Ueyama
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Patent number: 9540003Abstract: In order to reliably assist a driver in emergency detour steering without causing a jerking forward motion of the vehicle during normal operation, a vehicle motion control device includes: a risk potential estimator that estimates a risk potential of a vehicle based on input external information and vehicle information; a vehicle longitudinal motion controller that generates a longitudinal motion control command of the vehicle based on a vehicle lateral jerk and a predetermined gain; and a gain adjustor that adjusts the gain, in which the gain adjustor adjusts the gain based on the risk potential estimated by the risk potential estimator.Type: GrantFiled: January 24, 2014Date of Patent: January 10, 2017Assignee: Hitachi Automotive Systems, Ltd.Inventors: Makoto Yamakado, Mitsuhide Sasaki, Mikio Ueyama, 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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Publication number: 20160335892Abstract: When turning right (left) at an intersection and crossing an oncoming vehicle lane, this system makes it possible to avoid blocking travel of or colliding with a moving body moving in the oncoming vehicle lane due to stopping in the oncoming vehicle lane, and to avoid colliding with a moving body after crossing the oncoming vehicle lane. Given two or more moving bodies present in the advancement direction on the path of the local vehicle, the external environment is detected before the local vehicle intersects with the path of a first moving body, which will first intersect the local vehicle path; if at least two moving bodies are detected, i.e.Type: ApplicationFiled: January 14, 2015Publication date: November 17, 2016Inventors: Takashi OKADA, Mikio UEYAMA
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Publication number: 20160264135Abstract: Provided is a vehicle movement control system which does not cause a discomfort feeling at a normal time and securely assists a driver at the time of emergency avoidance steering. The vehicle movement control system includes: a risk potential estimation unit which estimates a risk potential of a vehicle based on input environmental information and vehicle information; a vehicle longitudinal movement control unit which generates a longitudinal movement control command of the vehicle based on a lateral jerk of the vehicle and a predetermined gain; a vehicle yawing movement control unit which generates a yawing movement control command of the vehicle based on the lateral jerk of the vehicle and the predetermined gain; and a ratio adjustment unit which adjusts a ratio between the longitudinal movement control command of the vehicle and the yawing movement control command of the vehicle, wherein the ratio adjustment unit adjusts the ratio based on the risk potential estimated by the risk potential estimation unit.Type: ApplicationFiled: October 3, 2014Publication date: September 15, 2016Inventors: Makoto YAMAKADO, Keiichiro NAGATSUKA, Mitsuhide SASAKI, Mikio UEYAMA
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Publication number: 20160244038Abstract: Provided is a motion controlling apparatus for a vehicle that can achieve improvement in drivability, stability, and driving comfort. The apparatus includes a control unit for controlling driving forces of vehicle wheels; a vehicle acceleration/deceleration instruction calculator for calculating an acceleration/deceleration instruction value on the basis of a lateral jerk; a first vehicle yaw moment instruction calculator for calculating a first vehicle yaw moment instruction value on the basis of the lateral jerk; and a second vehicle yaw moment instruction calculator for calculating a second vehicle yaw moment instruction value on the basis of lateral slip information.Type: ApplicationFiled: February 12, 2016Publication date: August 25, 2016Inventors: Makoto YAMAKADO, Mitsuhide SASAKI, Mikio UEYAMA, Keiichiro NAGATSUKA
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Publication number: 20160229401Abstract: Provided is a vehicle running control apparatus capable of controlling a vehicle comfortably while inhibiting an uncomfortable feeling of a driver in consideration of dimensions of longitudinal acceleration requirements for the vehicle. This vehicle running control apparatus includes: a first control command value calculation unit configured to calculate a first control command value that controls vehicle longitudinal acceleration; a second control command value calculation unit configured to calculate a second control command value that controls longitudinal acceleration according to a lateral jerk that acts on the vehicle; a correction determination processing unit configured to determine whether to make correction based on the first control command value and the second control command value; and a correction processing unit configured, when the correction determination processing unit determines that correction is needed, to correct the first control command value based on the second control command value.Type: ApplicationFiled: June 13, 2014Publication date: August 11, 2016Inventors: Keiichiro NAGATSUKA, Makoto YAMAKADO, Mitsuhide SASAKI, Mikio UEYAMA
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Patent number: 9399449Abstract: A vehicle travel control device includes a control instruction value calculation unit, a driver acceleration intent quantification unit, and a control instruction value correction determination unit that determines whether correction of a control instruction value is required in response to a quantified driver's acceleration intent. The vehicle travel control device also includes a control instruction value correction unit that corrects the control instruction value in response to a correction determination result of the control instruction value correction determination unit. The driver acceleration intent quantification unit quantifies the driver's acceleration intent using an integral value of the longitudinal jerk occurring according to the brake operation of the driver.Type: GrantFiled: May 29, 2013Date of Patent: July 26, 2016Assignee: Hitachi Automotive Systems, Ltd.Inventors: Keiichiro Nagatsuka, Makoto Yamakado, Mitsuhide Sasaki, Mikio Ueyama
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Patent number: 9352747Abstract: A vehicle travel control system includes a first unit configured to calculate a target longitudinal acceleration/deceleration control command of the own vehicle based on a distance or a relative speed between the own vehicle and a forward obstacle, traveling route information from a vehicle navigation system or a Global Positioning System, and input information such as a vehicle speed set by a driver; a second unit configured to calculate a target longitudinal acceleration/deceleration control command according to a lateral jerk that acts on the own vehicle; and an arbitration unit configured to perform, based on the target longitudinal acceleration/deceleration control command calculated by the second unit, arbitration of the target longitudinal acceleration/deceleration control command calculated by the first unit, wherein output from the arbitration unit is set as a command to control the target longitudinal acceleration/deceleration control command of the own vehicle.Type: GrantFiled: January 21, 2013Date of Patent: May 31, 2016Assignee: Hitachi Automotive Systems, Ltd.Inventors: Keiichiro Nagatsuka, Makoto Yamakado, Mitsuhide Sasaki, Mikio Ueyama
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Patent number: 9296374Abstract: Provided is a motion controlling apparatus for a vehicle that can achieve improvement in drivability, stability, and driving comfort. The apparatus includes a control unit for controlling driving forces of vehicle wheels; a vehicle acceleration/deceleration instruction calculator for calculating an acceleration/deceleration instruction value on the basis of a lateral jerk; a first vehicle yaw moment instruction calculator for calculating a first vehicle yaw moment instruction value on the basis of the lateral jerk; and a second vehicle yaw moment instruction calculator for calculating a second vehicle yaw moment instruction value on the basis of lateral slip information.Type: GrantFiled: September 20, 2013Date of Patent: March 29, 2016Assignee: Hitachi Automotive Systems, Ltd.Inventors: Makoto Yamakado, Mitsuhide Sasaki, Mikio Ueyama, Keiichiro Nagatsuka
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Publication number: 20160059852Abstract: In order to reliably assist a driver in emergency detour steering without causing a jerking forward motion of the vehicle during normal operation, a vehicle motion control device includes: a risk potential estimator that estimates a risk potential of a vehicle based on input external information and vehicle information; a vehicle longitudinal motion controller that generates a longitudinal motion control command of the vehicle based on a vehicle lateral jerk and a predetermined gain; and a gain adjustor that adjusts the gain, in which the gain adjustor adjusts the gain based on the risk potential estimated by the risk potential estimator.Type: ApplicationFiled: January 24, 2014Publication date: March 3, 2016Inventors: Makoto YAMAKADO, Mitsuhide SASAKI, Mikio UEYAMA, Keiichiro NAGATSUKA
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Publication number: 20150367852Abstract: Disclosed is a vehicle motion control system that can control a vehicle without making a driver feel uncomfortable.Type: ApplicationFiled: December 20, 2013Publication date: December 24, 2015Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Keiichiro Nagatsuka, Makoto Yamakado, Mikio Ueyama, Mitsuhide Sasaki
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Publication number: 20150298696Abstract: A vehicle travel control system includes a first unit configured to calculate a target longitudinal acceleration/deceleration control command of the own vehicle based on a distance or a relative speed between the own vehicle and a forward obstacle, traveling route information from a vehicle navigation system or a Global Positioning System, and input information such as a vehicle speed set by a driver; a second unit configured to calculate a target longitudinal acceleration/deceleration control command according to a lateral jerk that acts on the own vehicle; and an arbitration unit configured to perform, based on the target longitudinal acceleration/deceleration control command calculated by the second unit, arbitration of the target longitudinal acceleration/deceleration control command calculated by the first unit, wherein output from the arbitration unit is set as a command to control the target longitudinal acceleration/deceleration control command of the own vehicle.Type: ApplicationFiled: January 21, 2013Publication date: October 22, 2015Applicant: Hitachi Automotive Systems, Ltd.Inventors: Keiichiro NAGATSUKA, Makoto YAMAKADO, Mitsuhide SASAKI, Mikio UEYAMA