Patents by Inventor Eiichi Shiraishi
Eiichi Shiraishi 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: 11958458Abstract: A vehicle controller includes a collision detector, a braking controller, a motional state detector, and a minor collision determiner. The collision detector is configured to detect a collision between a vehicle and another object. The braking controller is configured to cause a braking device of the vehicle to generate a braking force in accordance with the detecting of the collision by the collision detector. The motional state detector is configured to detect a motional state of the vehicle. The minor collision determiner is configured to determine, based on an output from the motional state detector, that a minor collision occurs that is a collision not detected by the collision detector. The braking controller is configured to cause the braking device to generate the braking force if the collision detector does not detect the collision and the minor collision determiner determines that the minor collision occurs.Type: GrantFiled: November 29, 2021Date of Patent: April 16, 2024Assignee: SUBARU CORPORATIONInventors: Eiichi Shiraishi, Takashi Takeda, Shintaro Ikeda, Satoru Akiyama
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Patent number: 11945431Abstract: A vehicle control apparatus includes a braking controller individually controlling braking forces of braking devices for left and right front and rear wheels, a side collision detector detecting a side collision against a vehicle, and a yaw behavior detector detecting yaw behavior of a vehicle body. If the yaw behavior detected after the side collision is such that a rear of the vehicle body shifts away from a collision side relative to a front thereof, the braking controller executes yaw amplification control to cause the braking device for the collision-side front wheel to generate a braking force larger than the remaining wheels. If the detected yaw behavior is such that the front shifts away from the collision side relative to the rear, the braking controller executes the yaw amplification control to cause the braking device for the collision-side rear wheel to generate a braking force larger than the remaining wheels.Type: GrantFiled: December 16, 2021Date of Patent: April 2, 2024Assignee: SUBARU CORPORATIONInventors: Eiichi Shiraishi, Takashi Takeda, Shintaro Ikeda, Satoru Akiyama
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Publication number: 20230068994Abstract: A vehicle theft deterrent apparatus includes a driver verifier, a steering torque detector, an actuator, and a steering controller. The steering torque detector is configured to detect steering torque input by a driver to a steering system. The actuator is configured to generate drive torque to be given to the steering system. The driver verifier is configured to verify whether driver information obtained from the driver matches registered information registered in advance. The steering controller is configured to control the drive torque generated by the actuator based on the steering torque. In a case where the driver verifier determines that the driver information does not match the registered information, the steering controller is configured to permit the driver to steer until a vehicle drives a set distance, and then to cause the actuator to generate the drive torque prohibiting the driver from steering.Type: ApplicationFiled: August 2, 2022Publication date: March 2, 2023Inventors: Minoru OMORI, Takashi TAKEDA, Satoru AKIYAMA, Eiichi SHIRAISHI, Shintaro IKEDA
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Patent number: 11560174Abstract: An automatic steering control device includes a forward recognition device, a traveling state detector, a lateral positional deviation calculator, a steering angle controller. The lateral positional deviation calculator calculates a first lateral positional deviation that is the lateral positional deviation ahead of the vehicle by a first distance, and a second lateral positional deviation that is the lateral positional deviation ahead of the vehicle by a second distance larger than the first distance. The steering angle controller performs first control on the steering angle so that an absolute value of the first lateral positional deviation decreases, and second control on the steering angle based on the second lateral positional deviation so that a difference between a change amount of the steering angle in the first control and a change amount of an actual steered angle that is a steered angle of wheels of the vehicle decreases.Type: GrantFiled: December 30, 2019Date of Patent: January 24, 2023Assignee: SUBARU CORPORATIONInventors: Satoru Akiyama, Eiichi Shiraishi
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Publication number: 20220203970Abstract: A vehicle control apparatus includes a braking controller individually controlling braking forces of braking devices for left and right front and rear wheels, a side collision detector detecting a side collision against a vehicle, and a yaw behavior detector detecting yaw behavior of a vehicle body. If the yaw behavior detected after the side collision is such that a rear of the vehicle body shifts away from a collision side relative to a front thereof, the braking controller executes yaw amplification control to cause the braking device for the collision-side front wheel to generate a braking force larger than the remaining wheels. If the detected yaw behavior is such that the front shifts away from the collision side relative to the rear, the braking controller executes the yaw amplification control to cause the braking device for the collision-side rear wheel to generate a braking force larger than the remaining wheels.Type: ApplicationFiled: December 16, 2021Publication date: June 30, 2022Inventors: Eiichi SHIRAISHI, Takashi TAKEDA, Shintaro IKEDA, Satoru AKIYAMA
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Publication number: 20220203943Abstract: A vehicle controller includes a collision detector, a braking controller, a motional state detector, and a minor collision determiner. The collision detector is configured to detect a collision between a vehicle and another object. The braking controller is configured to cause a braking device of the vehicle to generate a braking force in accordance with the detecting of the collision by the collision detector. The motional state detector is configured to detect a motional state of the vehicle. The minor collision determiner is configured to determine, based on an output from the motional state detector, that a minor collision occurs that is a collision not detected by the collision detector. The braking controller is configured to cause the braking device to generate the braking force if the collision detector does not detect the collision and the minor collision determiner determines that the minor collision occurs.Type: ApplicationFiled: November 29, 2021Publication date: June 30, 2022Inventors: Eiichi SHIRAISHI, Takashi TAKEDA, Shintaro IKEDA, Satoru AKIYAMA
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Publication number: 20220185263Abstract: A vehicle control apparatus includes a contact detector, an attitude stabilization processor, and a steering intention determining unit. The contact detector is configured to detect a contact of a vehicle with an object. The attitude stabilization processor is configured to execute an attitude stabilization control that generates a yaw moment at a vehicle body on the basis of a deviation between a target yaw rate and an actual yaw rate. The steering intention determining unit is configured to determine a presence of a driver's intention to perform steering. The attitude stabilization processor is configured to stop the generation of the yaw moment by the attitude stabilization control or reduce the yaw moment to be generated by the attitude stabilization control, in a case where the steering intention determining unit determines that the driver's intention to perform the steering is absent after the detection of the contact by the contact detector.Type: ApplicationFiled: November 23, 2021Publication date: June 16, 2022Inventors: Satoru AKIYAMA, Eiichi SHIRAISHI, Takashi TAKEDA, Shintaro IKEDA
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Patent number: 11214299Abstract: An automatic steering control device for a vehicle includes: a steering angle change amount detector; a vehicle behavior detector; a disturbance determinator; and a counter torque applying processor. The steering angle change amount detector detects a steering angle change amount that acts on a steered wheel; the vehicle behavior detector detects a yaw change amount that acts on the vehicle; the disturbance determinator determines a disturbance that acts on the vehicle, based on the steering angle change amount and the yaw change amount; and the counter torque applying processor applies a counter torque for suppressing the yaw change amount on the electric power steering motor, when it is determined by the disturbance determinator that the steering angle change amount is within an allowable steering angle change range and the yaw change amount is outside an allowable yaw change range.Type: GrantFiled: October 1, 2019Date of Patent: January 4, 2022Assignee: SUBARU CORPORATIONInventors: Eiichi Shiraishi, Satoru Akiyama
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Patent number: 11167768Abstract: A vehicle driving assist system includes a steering wheel contact position detector, a steering torque detector, a driving mode setting calculator, and a steering override determiner. The driving mode setting calculator is configured to set a driving mode including a first driving assist mode, a second driving assist mode, and a manual driving mode. The driving mode setting calculator is configured, while traveling in a current driving mode that is the first driving assist mode or the second driving assist mode, to allow the current driving mode to continue in a case where the steering override determiner has determined that a steering torque detected by the steering torque detector is a false detection or to cause the driving mode to make a transition to the manual driving mode in a case where the steering override determiner has determined that the steering torque is a steering override intended by a driver.Type: GrantFiled: January 7, 2019Date of Patent: November 9, 2021Assignee: SUBARU CORPORATIONInventors: Eiichi Shiraishi, Takayuki Nagase
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Patent number: 11046331Abstract: A driving assist system includes a steering wheel contact position detector, a steering torque detector, and a driving mode setting calculator. The steering wheel contact position detector includes a plurality of contact sensors disposed in a segmented state on a circumference of a holding part provided on a steering wheel, and is configured to detect a position on the steering wheel at which a driver makes a contact with the steering wheel. The driving mode setting calculator is configured to set a driving mode on the basis of a driving condition. The driving mode setting calculator is configured to determine whether a steering torque detected by the steering torque detector is a steering override intended by the driver or is a false detection, on the basis of the steering torque detected by the steering torque detector and a position at which the contact is detected by the contact sensors.Type: GrantFiled: January 7, 2019Date of Patent: June 29, 2021Assignee: SUBARU CORPORATIONInventors: Takayuki Nagase, Eiichi Shiraishi
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Publication number: 20200307685Abstract: An automatic steering control device includes a forward recognition device, a traveling state detector, a lateral positional deviation calculator, a steering angle controller. The lateral positional deviation calculator calculates a first lateral positional deviation that is the lateral positional deviation ahead of the vehicle by a first distance, and a second lateral positional deviation that is the lateral positional deviation ahead of the vehicle by a second distance larger than the first distance. The steering angle controller performs first control on the steering angle so that an absolute value of the first lateral positional deviation decreases, and second control on the steering angle based on the second lateral positional deviation so that a difference between a change amount of the steering angle in the first control and a change amount of an actual steered angle that is a steered angle of wheels of the vehicle decreases.Type: ApplicationFiled: December 30, 2019Publication date: October 1, 2020Inventors: Satoru AKIYAMA, Eiichi SHIRAISHI
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Publication number: 20200156700Abstract: An automatic steering control device for a vehicle includes: a steering angle change amount detector; a vehicle behavior detector; a disturbance determinator; and a counter torque applying processor. The steering angle change amount detector detects a steering angle change amount that acts on a steered wheel; the vehicle behavior detector detects a yaw change amount that acts on the vehicle; the disturbance determinator determines a disturbance that acts on the vehicle, based on the steering angle change amount and the yaw change amount; and the counter torque applying processor applies a counter torque for suppressing the yaw change amount on the electric power steering motor, when it is determined by the disturbance determinator that the steering angle change amount is within an allowable steering angle change range and the yaw change amount is outside an allowable yaw change range.Type: ApplicationFiled: October 1, 2019Publication date: May 21, 2020Inventors: Eiichi SHIRAISHI, Satoru AKIYAMA
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Patent number: 10604180Abstract: A vehicle traveling control system includes: an electric power steering device, a positioning device, a communication device, and a control unit. The communication device receives wind information including information on a wind direction and a detection position of crosswind detected on a course of a host vehicle. The crosswind blows from a side with respect to the host vehicle. The control unit changes an assist force generation map of the electric power steering device such that an assist force that the electric power steering device generates with respect to steering performed up the crosswind becomes stronger than an assist force that the electric power steering device generates with respect to steering performed down the crosswind during traveling of the host vehicle through the detection position of the crosswind.Type: GrantFiled: May 1, 2018Date of Patent: March 31, 2020Assignee: SUBARU CORPORATIONInventors: Eiichi Shiraishi, Takayuki Nagase
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Publication number: 20190300013Abstract: A vehicle driving assist system includes a steering wheel contact position detector, a steering torque detector, a driving mode setting calculator, and a steering override determiner. The driving mode setting calculator is configured to set a driving mode including a first driving assist mode, a second driving assist mode, and a manual driving mode. The driving mode setting calculator is configured, while traveling in a current driving mode that is the first driving assist mode or the second driving assist mode, to allow the current driving mode to continue in a case where the steering override determiner has determined that a steering torque detected by the steering torque detector is a false detection or to cause the driving mode to make a transition to the manual driving mode in a case where the steering override determiner has determined that the steering torque is a steering override intended by a driver.Type: ApplicationFiled: January 7, 2019Publication date: October 3, 2019Inventors: Eiichi SHIRAISHI, Takayuki NAGASE
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Publication number: 20190300014Abstract: A driving assist system includes a steering wheel contact position detector, a steering torque detector, and a driving mode setting calculator. The steering wheel contact position detector includes a plurality of contact sensors disposed in a segmented state on a circumference of a holding part provided on a steering wheel, and is configured to detect a position on the steering wheel at which a driver makes a contact with the steering wheel. The driving mode setting calculator is configured to set a driving mode on the basis of a driving condition. The driving mode setting calculator is configured to determine whether a steering torque detected by the steering torque detector is a steering override intended by the driver or is a false detection, on the basis of the steering torque detected by the steering torque detector and a position at which the contact is detected by the contact sensors.Type: ApplicationFiled: January 7, 2019Publication date: October 3, 2019Inventors: Takayuki NAGASE, Eiichi SHIRAISHI
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Patent number: 10360461Abstract: A travel control device for a vehicle is configured to execute a self-driving control based on a traveling state and traveling environment information of the vehicle. The travel control device includes a controller. The controller estimates execution of a right turn and a left turn from a traveling lane of the vehicle based on the traveling state and traveling environment information. When execution of either one of the right turn and the left turn from the traveling lane of the vehicle is estimated, the controller varies a traveling path from the traveling lane to a lane after the execution of the estimated turn according to the traveling state and traveling environment information to perform a right or left turn control of the vehicle.Type: GrantFiled: May 2, 2017Date of Patent: July 23, 2019Assignee: SUBARU CORPORATIONInventors: Takayuki Nagase, Eiichi Shiraishi
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Patent number: 10266174Abstract: A travel control device for a vehicle executes a self-driving control based on traveling environment information on which the vehicle travels and traveling information on the vehicle. In the device, a traveling environment information acquisition unit acquires the traveling environment information. A traveling information detection unit detects the traveling information. An unstable behavior detector detects an unstable behavior in one or both of a rolling direction and a yaw direction of the vehicle. A steering wheel holding state detector detects a state in which a driver holds a steering wheel. The first unstable behavior reducer reduces the detected unstable behavior by correcting a steering angle. A second unstable behavior reducer reduces the detected unstable behavior by selecting a predetermined wheel and applying a braking force to the wheel. A vehicle behavior controller freely operates the unstable behavior reducers according to detection results.Type: GrantFiled: April 26, 2017Date of Patent: April 23, 2019Assignee: SUBARU CORPORATIONInventors: Eiichi Shiraishi, Takayuki Nagase
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Publication number: 20190031236Abstract: A vehicle traveling control system includes: an electric power steering device, a positioning device, a communication device, and a control unit. The communication device receives wind information including information on a wind direction and a detection position of crosswind detected on a course of a host vehicle. The crosswind blows from a side with respect to the host vehicle. The control unit changes an assist force generation map of the electric power steering device such that an assist force that the electric power steering device generates with respect to steering performed up the crosswind becomes stronger than an assist force that the electric power steering device generates with respect to steering performed down the crosswind during traveling of the host vehicle through the detection position of the crosswind.Type: ApplicationFiled: May 1, 2018Publication date: January 31, 2019Inventors: Eiichi SHIRAISHI, Takayuki NAGASE
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Publication number: 20170351926Abstract: A travel control device for a vehicle is configured to execute a self-driving control based on a traveling state and traveling environment information of the vehicle. The travel control device includes a controller. The controller estimates execution of a right turn and a left turn from a traveling lane of the vehicle based on the traveling state and traveling environment information. When execution of either one of the right turn and the left turn from the traveling lane of the vehicle is estimated, the controller varies a traveling path from the traveling lane to a lane after the execution of the estimated turn according to the traveling state and traveling environment information to perform a right or left turn control of the vehicle.Type: ApplicationFiled: May 2, 2017Publication date: December 7, 2017Inventors: Takayuki NAGASE, Eiichi SHIRAISHI
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Publication number: 20170313304Abstract: A travel control device for a vehicle executes a self-driving control based on traveling environment information on which the vehicle travels and traveling information on the vehicle. In the device, a traveling environment information acquisition unit acquires the traveling environment information. A traveling information detection unit detects the traveling information. An unstable behavior detector detects an unstable behavior in one or both of a rolling direction and a yaw direction of the vehicle. A steering wheel holding state detector detects a state in which a driver holds a steering wheel. The first unstable behavior reducer reduces the detected unstable behavior by correcting a steering angle. A second unstable behavior reducer reduces the detected unstable behavior by selecting a predetermined wheel and applying a braking force to the wheel. A vehicle behavior controller freely operates the unstable behavior reducers according to detection results.Type: ApplicationFiled: April 26, 2017Publication date: November 2, 2017Inventors: Eiichi SHIRAISHI, Takayuki NAGASE