Patents by Inventor Mitsutaka Tanimoto
Mitsutaka Tanimoto 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: 20240140435Abstract: A vehicle control device includes a processor. The processor calculates an instruction value of an operation request for controlling an operation of an actuator mounted on a vehicle based on a motion request from an application. The processor executes feedback control on the instruction value using a deviation between the motion request and a motion result of the vehicle that is calculated based on one of detection values of four wheel velocity sensors. The processor calculates the motion result in the feedback control based on a detection value indicating the second largest vehicle body velocity among the vehicle body velocities indicated by the detection values of the four wheel velocity sensors when the vehicle is braked.Type: ApplicationFiled: October 17, 2023Publication date: May 2, 2024Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.Inventors: Yuta OHASHI, Mitsutaka TANIMOTO, Hidehisa KATO, Michihiro OTSUBO
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Patent number: 11904907Abstract: An autonomous driving vehicle includes a first reference straight steering angle acquisition unit configured to acquire a first reference straight steering angle which is a steering angle of the autonomous driving vehicle in a straight travelling state, a second reference straight steering angle acquisition unit configured to acquire a second reference straight steering angle which is the steering angle when a magnitude of a difference between an estimated yaw rate estimated from the steering angle of the autonomous driving vehicle and the yaw rate of the autonomous driving vehicle detected from the yaw rate sensor is less than a yaw rate threshold value, and an autonomous driving permission unit configured to permits an autonomous driving of the autonomous driving vehicle when both the first reference straight steering angle and the second reference straight steering angle are acquired.Type: GrantFiled: January 18, 2022Date of Patent: February 20, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shun Maruyama, Mitsutaka Tanimoto, Yutaka Aoki
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Publication number: 20220234624Abstract: An autonomous driving vehicle includes a first reference straight steering angle acquisition unit configured to acquire a first reference straight steering angle which is a steering angle of the autonomous driving vehicle in a straight travelling state, a second reference straight steering angle acquisition unit configured to acquire a second reference straight steering angle which is the steering angle when a magnitude of a difference between an estimated yaw rate estimated from the steering angle of the autonomous driving vehicle and the yaw rate of the autonomous driving vehicle detected from the yaw rate sensor is less than a yaw rate threshold value, and an autonomous driving permission unit configured to permits an autonomous driving of the autonomous driving vehicle when both the first reference straight steering angle and the second reference straight steering angle are acquired.Type: ApplicationFiled: January 18, 2022Publication date: July 28, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shun MARUYAMA, Mitsutaka TANIMOTO, Yutaka AOKI
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Publication number: 20220219656Abstract: A vehicle control device includes an automatic driving control device configured to execute automatic driving control on a vehicle, and an anti-lock braking system configured to control a longitudinal slip ratio of wheels of the vehicle to be equal to or smaller than a threshold during braking of the vehicle. The automatic driving control to be executed by the automatic driving control device includes braking force control for changing a braking force to be applied to the wheels of the vehicle depending on a target deceleration set without being based on a deceleration request by a driver. The automatic driving control device is configured to, when a failure of the anti-lock braking system is detected during execution of the automatic driving control on the vehicle, set the target deceleration in the braking force control to a value equal to or smaller than an upper limit deceleration value.Type: ApplicationFiled: December 17, 2021Publication date: July 14, 2022Inventors: Tomotaka ASANO, Mitsutaka TANIMOTO, Takahiro KOJO, Tomomichi NAKAMURA, Taisuke YASUTOMI
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Patent number: 11221619Abstract: An autonomous driving system installed on a vehicle includes: an information acquisition device configured to acquire driving environment information indicating driving environment for the vehicle; and an autonomous driving control device configured to control autonomous driving of the vehicle based on the driving environment information. The driving environment information includes: map information; and size information indicating a size of a routing object that moves integrally with the vehicle. The autonomous driving control device refers to the map information and the size information to determine a travel route through which the routing object can pass without protruding from a roadway as a target travel route to a destination.Type: GrantFiled: January 9, 2019Date of Patent: January 11, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yusuke Udagawa, Mitsutaka Tanimoto, Masateru Amano
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Patent number: 11188076Abstract: An autonomous driving system installed on a vehicle includes: an information acquisition device configured to acquire driving environment information indicating driving environment for the vehicle; and an autonomous driving control device configured to control autonomous driving of the vehicle based on the driving environment information. The driving environment information includes: map information; and size information indicating a size of a routing object that moves integrally with the vehicle. The autonomous driving control device refers to the map information and the size information to determine a travel route through which the routing object can pass without protruding from a roadway as a target travel route to a destination.Type: GrantFiled: January 9, 2019Date of Patent: November 30, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yusuke Udagawa, Mitsutaka Tanimoto, Masateru Amano
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Patent number: 11110794Abstract: A vehicle control apparatus executes braking assist control to decelerate a vehicle by automatic operation of a braking device. When the vehicle control apparatus obtains a deceleration request from a driver during execution of the braking assist control, while a driver request deceleration requested to the braking device by the driver is constant or in an increasing trend, the vehicle control apparatus executes first arithmetic processing to suppress a system request deceleration requested to the braking device by the braking assist control from being decreased by the braking assist control.Type: GrantFiled: February 26, 2019Date of Patent: September 7, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takahiro Yokota, Mitsutaka Tanimoto, Toshihiko Seki, Yoshinori Watanabe
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Patent number: 10486665Abstract: A brake control apparatus includes: a master cylinder that outputs a brake fluid at a master pressure; a master pressure changing device that is configured to change the master pressure irrespective of an operation of a brake pedal; a brake actuator; and a control unit that executes vehicle stability control by changing a brake pressure of a target wheel. Modes of the vehicle stability control include a normal mode and a pseudo mode. In the pseudo mode, the control unit operates the master pressure changing device such that the master pressure obtains a target value of the brake pressure of the target wheel, and changes the brake pressure of the target wheel in an interlocking manner with the master pressure. When the normal mode is unavailable, the control unit executes the vehicle stability control in the pseudo mode.Type: GrantFiled: July 31, 2017Date of Patent: November 26, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Mitsutaka Tanimoto
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Patent number: 10457258Abstract: A brake control apparatus includes: a master cylinder that outputs a brake fluid at a master pressure; a master pressure changing device that can change the master pressure irrespective of an operation of a brake pedal; a brake actuator; and a control unit that executes antilock control by reducing a brake pressure of a target wheel. Modes of the antilock control include a normal mode and a pseudo mode. In the pseudo mode, the control unit operates the master pressure changing device such that the master pressure obtains a target value of the brake pressure of the target wheel, and changes the brake pressure of the target wheel in an interlocking manner with the master pressure. When the normal mode is unavailable, the control unit executes the antilock control in the pseudo mode.Type: GrantFiled: July 31, 2017Date of Patent: October 29, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Mitsutaka Tanimoto
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Publication number: 20190283581Abstract: A vehicle control apparatus executes braking assist control to decelerate a vehicle by automatic operation of a braking device. When the vehicle control apparatus obtains a deceleration request from a driver during execution of the braking assist control, while a driver request deceleration requested to the braking device by the driver is constant or in an increasing trend, the vehicle control apparatus executes first arithmetic processing to suppress a system request deceleration requested to the braking device by the braking assist control from being decreased by the braking assist control.Type: ApplicationFiled: February 26, 2019Publication date: September 19, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takahiro YOKOTA, Mitsutaka TANIMOTO, Toshihiko SEKI, Yoshinori WATANABE
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Publication number: 20190265695Abstract: An autonomous driving system installed on a vehicle includes: an information acquisition device configured to acquire driving environment information indicating driving environment for the vehicle; and an autonomous driving control device configured to control autonomous driving of the vehicle based on the driving environment information. The driving environment information includes: map information; and size information indicating a size of a routing object that moves integrally with the vehicle. The autonomous driving control device refers to the map information and the size information to determine a travel route through which the routing object can pass without protruding from a roadway as a target travel route to a destination.Type: ApplicationFiled: January 9, 2019Publication date: August 29, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yusuke UDAGAWA, Mitsutaka Tanimoto, Masateru Amano
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Patent number: 10239557Abstract: A vehicle travel control device includes: an EPS device turning a wheel of a vehicle; and a control device performing autonomous driving control that controls autonomous driving of the vehicle. The autonomous driving control includes: calculating a target steering angle of the wheel; and actuating the EPS device to turn the wheel such that a steering angle of the wheel becomes the target steering angle. Calculating the target steering angle includes: calculating an autonomous driving steering angle and a target state quantity required for automatic steering in the autonomous driving; calculating a counter steering angle required for vehicle stabilization control, based on the target state quantity without using a steering wheel angle; and calculating a sum of the autonomous driving steering angle and the counter steering angle as the target steering angle.Type: GrantFiled: October 26, 2017Date of Patent: March 26, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Go Inoue, Mitsutaka Tanimoto, Takahiro Yokota, Yoshio Kudo, Yutaka Aoki
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Publication number: 20180178838Abstract: A vehicle travel control device includes: an EPS device turning a wheel of a vehicle; and a control device performing autonomous driving control that controls autonomous driving of the vehicle. The autonomous driving control includes: calculating a target steering angle of the wheel; and actuating the EPS device to turn the wheel such that a steering angle of the wheel becomes the target steering angle. Calculating the target steering angle includes: calculating an autonomous driving steering angle and a target state quantity required for automatic steering in the autonomous driving; calculating a counter steering angle required for vehicle stabilization control, based on the target state quantity without using a steering wheel angle; and calculating a sum of the autonomous driving steering angle and the counter steering angle as the target steering angle.Type: ApplicationFiled: October 26, 2017Publication date: June 28, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Go INOUE, Mitsutaka TANIMOTO, Takahiro YOKOTA, Yoshio KUDO, Yutaka AOKI
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Publication number: 20180181130Abstract: A vehicle travel control device includes: an EPS device turning a wheel of a vehicle; a VCRS device capable of changing a ratio of a steering wheel angle and a steering angle of the wheel; and a control device performing autonomous driving control that controls autonomous driving of the vehicle. The autonomous driving control includes: target steering angle calculation processing that calculates a target steering angle of the wheel; turning control that actuates the EPS device to turn the wheel such that the steering angle of the wheel becomes the target steering angle; and steering wheel angle control that actuates, based on the target steering angle, the VGRS device in a direction to suppress a change in the steering wheel angle caused by the turning control.Type: ApplicationFiled: October 27, 2017Publication date: June 28, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Go INOUE, Mitsutaka TANIMOTO, Takahiro YOKOTA, Yoshio KUDO, Yutaka AOKI
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Publication number: 20180043869Abstract: A brake control apparatus includes: a master cylinder that outputs a brake fluid at a master pressure; a master pressure changing device that is configured to change the master pressure irrespective of an operation of a brake pedal; a brake actuator; and a control unit that executes vehicle stability control by changing a brake pressure of a target wheel. Modes of the vehicle stability control include a normal mode and a pseudo mode. In the pseudo mode, the control unit operates the master pressure changing device such that the master pressure obtains a target value of the brake pressure of the target wheel, and changes the brake pressure of the target wheel in an interlocking manner with the master pressure. When the normal mode is unavailable, the control unit executes the vehicle stability control in the pseudo mode.Type: ApplicationFiled: July 31, 2017Publication date: February 15, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Mitsutaka TANIMOTO
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Publication number: 20180043873Abstract: A brake control apparatus includes: a master cylinder that outputs a brake fluid at a master pressure; a master pressure changing device that can change the master pressure irrespective of an operation of a brake pedal; a brake actuator; and a control unit that executes antilock control by reducing a brake pressure of a target wheel. Modes of the antilock control include a normal mode and a pseudo mode. In the pseudo mode, the control unit operates the master pressure changing device such that the master pressure obtains a target value of the brake pressure of the target wheel, and changes the brake pressure of the target wheel in an interlocking manner with the master pressure. When the normal mode is unavailable, the control unit executes the antilock control in the pseudo mode.Type: ApplicationFiled: July 31, 2017Publication date: February 15, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Mitsutaka TANIMOTO
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Publication number: 20180029585Abstract: A vehicle controller performs traveling control of a vehicle. The traveling control includes lane departure prevention control of turning the vehicle in a direction in which lane departure of the vehicle is avoided and roll stiffness control of changing a roll stiffness of the vehicle. The vehicle controller executes the roll stiffness control by coupling with execution of the lane departure prevention control.Type: ApplicationFiled: July 18, 2017Publication date: February 1, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Mitsutaka TANIMOTO
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Patent number: 9540038Abstract: A control apparatus for controlling a vehicle which is provided with a braking/driving force varying device capable of individually changing a braking/driving force acting on each of wheels (FL, FR, RL, RR) with respect to each wheel.Type: GrantFiled: June 30, 2010Date of Patent: January 10, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toru Takashima, Norihisa Nishikawa, Mitsutaka Tanimoto, Tetsuhiro Narita
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Patent number: 9079607Abstract: A vehicle steering control apparatus in a vehicle including an apparatus changing a tire steer angle independently of steering wheel operation; a detecting device detecting a tire steer angle equivalent value corresponding to the tire steer angle; and a controller is provided. The controller is configured to learn a steering wheel angle neutral point; determine if the detecting device is in an abnormal state; disregard the learned steering wheel angle neutral point if the detecting device is in the abnormal state; control the apparatus such that the tire steer angle is returned to a tire steer angle neutral point if the detecting device is in the abnormal state; initialize the detecting device after the tire steer angle is returned to the tire steer angle neutral point; and restart the learning of the steering wheel angle after the detecting device is initialized.Type: GrantFiled: December 1, 2010Date of Patent: July 14, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mitsutaka Tanimoto, Takahiro Kojo, Yoshiaki Tsuchiya, Yoshitaka Fujita
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Patent number: 8996254Abstract: A vehicle motion control apparatus which is configured to control a motion of a vehicle comprising a plurality of apparatuses, each of which is configured to selectively control a slip angle or a yaw rate, is provided with: a behavior controlling device which is configured to perform behavior control in which a plurality of apparatuses are controlled such that a slip angle and a yaw rate are a set target slip angle and a target yaw rate, respectively; a turning state quantity specifying device which is configured to specify a turning state quantity of the vehicle; and a selecting device which is configured to select at least one of the slip angle and the yaw rate to be prioritized, on the basis of the specified turning state quantity in a case where the behavior control needs to be performed by one of the plurality of apparatuses.Type: GrantFiled: December 1, 2010Date of Patent: March 31, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Norihisa Nishikawa, Mitsutaka Tanimoto, Yoshitaka Fujita, Toru Takashima, Tetsuhiro Narita, Go Inoue, Takahiro Kojo