Patents by Inventor Hayato Nakada
Hayato Nakada 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).
-
Patent number: 11566551Abstract: A controller 1 includes a calculation unit 10 that receives the current sensor value A1 of the vehicle and calculates an injection amount based on the current sensor value A1 and a target value of the ammonia adsorption amount of the selective reduction catalyst 105 so that the ammonia adsorption amount approaches the target value, and a prediction unit 20 that receives the current sensor value B1 and calculates a corrected target value by future prediction based on the current sensor value B1. The calculation unit 10 calculates the injection amount based on the corrected target value calculated by the prediction unit 20.Type: GrantFiled: September 9, 2021Date of Patent: January 31, 2023Assignees: Hino Motors, Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Munechika Tsutsumi, Hironori Narita, Hayato Nakada
-
Publication number: 20230020759Abstract: A controller 1 includes a calculation unit 10 that receives the current sensor value A1 of the vehicle and calculates an injection amount based on the current sensor value A1 and a target value of the ammonia adsorption amount of the selective reduction catalyst 105 so that the ammonia adsorption amount approaches the target value, and a prediction unit 20 that receives the current sensor value B1 and calculates a corrected target value by future prediction based on the current sensor value B1. The calculation unit 10 calculates the injection amount based on the corrected target value calculated by the prediction unit 20.Type: ApplicationFiled: September 9, 2021Publication date: January 19, 2023Applicants: Hino Motors, Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Munechika TSUTSUMI, Hironori NARITA, Hayato NAKADA
-
Publication number: 20210141393Abstract: A controller includes a processor including hardware, the processor being configure to control a leading vehicle in a platoon formed by a plurality of vehicles to supply profitable information or energy that profits a manager who manages the leading vehicle or a person who requests travel of the leading vehicle to a following vehicle in the platoon, the plurality of vehicles communicating with each other to form the platoon.Type: ApplicationFiled: November 10, 2020Publication date: May 13, 2021Inventor: Hayato NAKADA
-
Patent number: 10955821Abstract: A plant control system comprises a feedback controller 5 configured to determine a control input of a plant 6 so that one control output of the plant approaches a target value, a provisional target value calculating part 2 configured to calculate a provisional target value based on a predetermined parameter of the plant, and a reference governor 3 configured to perform a minimum value search of an object function by updating a corrected target value to thereby derive the target value from the provisional target value. The reference governor is configured to update the corrected target value only between r?0.5Rr and “r”. Rr is a value of a partial differential for the corrected target value “w” of the object function when the corrected target value “w” is the provisional target value “r”.Type: GrantFiled: December 20, 2018Date of Patent: March 23, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hayato Nakada
-
Patent number: 10947915Abstract: A control system includes an electronic control unit including a feedback controller and a reference governor. The feedback controller is configured to determine a value of control input such that a value of control output approximates a target value. The reference governor is configured to calculate, with a prediction model, a predicted maximum value of an overshoot amount of the control output that overshoots from the target value. The prediction model is derived assuming that an n-th delay (n is a natural number) occurs in a response of the control output. The reference governor is configured to calculate the target value by correcting the provisional target value of the control output based on the predicted maximum value so as to increase a degree of satisfaction of a constraint condition with regard to the control output.Type: GrantFiled: June 25, 2019Date of Patent: March 16, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hayato Nakada, Takeshi Sano
-
Publication number: 20200032727Abstract: A control system includes an electronic control unit including a feedback controller and a reference governor. The feedback controller is configured to determine a value of control input such that a value of control output approximates a target value. The reference governor is configured to calculate, with a prediction model, a predicted maximum value of an overshoot amount of the control output that overshoots from the target value. The prediction model is derived assuming that an n-th delay (n is a natural number) occurs in a response of the control output. The reference governor is configured to calculate the target value by correcting the provisional target value of the control output based on the predicted maximum value so as to increase a degree of satisfaction of a constraint condition with regard to the control output.Type: ApplicationFiled: June 25, 2019Publication date: January 30, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hayato NAKADA, Takeshi SANO
-
Publication number: 20190212718Abstract: A plant control system comprises a feedback controller 5 configured to determine a control input of a plant 6 so that one control output of the plant approaches a target value, a provisional target value calculating part 2 configured to calculate a provisional target value based on a predetermined parameter of the plant, and a reference governor 3 configured to perform a minimum value search of an object function by updating a corrected target value to thereby derive the target value from the provisional target value. The reference governor is configured to update the corrected target value only between r?0.5Rr and “r”. Rr is a value of a partial differential for the corrected target value “w” of the object function when the corrected target value “w” is the provisional target value “r”.Type: ApplicationFiled: December 20, 2018Publication date: July 11, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hayato NAKADA
-
Patent number: 10260442Abstract: A plant control device includes a feedback controller that determines a control input of a plant, and a reference governor that corrects an initial target value and outputs the corrected initial target value to the feedback controller. The reference governor determines a target value satisfying an upper limit constraint to be a target value candidate that minimizes a value of an evaluation function. The reference governor determines the target value satisfying the upper limit constraint to be a value of the upper limit constraint when a value acquired by substituting, with the value of the upper limit constraint, a variable of a differential function acquired by differentiating the evaluation function with respect to the target value candidate is greater than or equal to zero.Type: GrantFiled: September 29, 2017Date of Patent: April 16, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hayato Nakada
-
Patent number: 10261481Abstract: This control device is configured to, based on a premise that an operating condition of a plant is a specific operating condition that is defined in advance, search for a virtual current value of a controlled variable for ensuring that a specific state quantity does not conflict with a constraint in the future using a prediction model, set the virtual current value which was found by the search to a target value of the controlled variable, and determine a manipulated variable of the plant so that an actual current value of the controlled variable approaches the target value. Due to this configuration, even if the operating condition of the plant suddenly changes to the specific operating condition, the controlled variable of the plant can be adjusted in advance so that the specific state quantity in the specific operating condition does not conflict with the constraint.Type: GrantFiled: May 12, 2015Date of Patent: April 16, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masanori Shimada, Hayato Nakada
-
Publication number: 20180181090Abstract: This control device is configured to, based on a premise that an operating condition of a plant is a specific operating condition that is defined in advance, search for a virtual current value of a controlled variable for ensuring that a specific state quantity does not conflict with a constraint in the future using a prediction model, set the virtual current value which was found by the search to a target value of the controlled variable, and determine a manipulated variable of the plant so that an actual current value of the controlled variable approaches the target value. Due to this configuration, even if the operating condition of the plant suddenly changes to the specific operating condition, the controlled variable of the plant can be adjusted in advance so that the specific state quantity in the specific operating condition does not conflict with the constraint.Type: ApplicationFiled: May 12, 2015Publication date: June 28, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanori SHIMADA, Hayato NAKADA
-
Patent number: 9951708Abstract: The invention relates to a control apparatus for an internal combustion engine (10) including a control target (60V, 52) that controls controlled variable (Pim, Regr). The control apparatus according to the invention is capable of selectively performing single control that is control for controlling the controlled variable to a target value thereof (Pimt, Regrt) without considering a change in the controlled variable that acts as a disturbance on the control of the controlled variable, and composite control that is control for controlling the controlled variable to the target value thereof in consideration of the change in the controlled variable that acts as the disturbance on the control of the controlled variable. The controlled variable is controlled to the target value thereof through the single control when an absolute value of a controlled variable change rate (Rpim, Rregr) is equal to or smaller than a predetermined value (Rpimth, Rregrth).Type: GrantFiled: October 6, 2011Date of Patent: April 24, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hayato Nakada
-
Publication number: 20180107177Abstract: A plant control device includes a feedback controller that determines a control input of a plant, and a reference governor that corrects an initial target value and outputs the corrected initial target value to the feedback controller. The reference governor determines a target value satisfying an upper limit constraint to be a target value candidate that minimizes a value of an evaluation function. The reference governor determines the target value satisfying the upper limit constraint to be a value of the upper limit constraint when a value acquired by substituting, with the value of the upper limit constraint, a variable of a differential function acquired by differentiating the evaluation function with respect to the target value candidate is greater than or equal to zero.Type: ApplicationFiled: September 29, 2017Publication date: April 19, 2018Inventor: Hayato Nakada
-
Patent number: 9828920Abstract: The purpose of the present invention is to prevent disturbance in the behavior of a power plant at the time of switching a controller in a vehicle power plant whose operation is controlled by manipulation of a plurality of actuators by the controller. In order to achieve the purpose, a vehicle power plant control apparatus provided by the present invention is configured as a target value tracking controller in which at least one controller calculates the amount of manipulation of the actuators according to an equation including an integrator for integrating a deviation between a state quantity and a target value thereof such that each of a plurality of state quantities of the power plant can track the corresponding target value.Type: GrantFiled: August 22, 2011Date of Patent: November 28, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hayato Nakada
-
Publication number: 20170260920Abstract: A control device includes a feedback controller that determines an operation amount of an actuator by feedback control such that an actual value of a state quantity becomes closer to a target value, and a reference governor that modifies the target value such that an amount of change in the state quantity per unit time is equal to or less than an upper limit value ?. The reference governor calculates a modified target value by adding one of 2??/?n and ?/{(T2/T1)T2/(T1?T2)?(T2/T1)T1/(T1?T2)} to a current value of the state quantity (?, ?n: an attenuation coefficient, a natural angular frequency of a model formula in a case where a dynamic characteristic of a closed-loop system is modeled as a dead time plus second-order vibration system, T1, T2 =??n?1(??±?{square root over ((?2?1))}?1), and determines the smaller one of the modified target value and an original target value as a final target value of the state quantity.Type: ApplicationFiled: September 16, 2015Publication date: September 14, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hayato NAKADA
-
Patent number: 9719432Abstract: A control apparatus for the internal combustion engine has a multicore processor mounted with a plurality of the cores, calculates various tasks regarding an operation of the internal combustion engine, and distributes the tasks to the plurality of the cores respectively to perform a calculation, and a controller that makes the number of cores for use in the calculation smaller while fuel cutoff is carried out than before the fuel cutoff is carried out. The controller selects, as a designated core, at least one of the cores for use in a specific calculation associated with combustion of the internal combustion engine. The controller stops the designated core from being used while fuel cutoff is carried out.Type: GrantFiled: September 12, 2011Date of Patent: August 1, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hayato Nakada
-
Patent number: 9574505Abstract: A plant control device according to the present invention includes a feedback controller and a reference governor. The feedback controller is configured to determine a control input of a plant by feedback control so as to bring an output value of a control amount of the plant close to a target value. The reference governor is configured to calculate a future predicted value of a specific state quantity of the plant by using a model of a closed loop system including the plant and the feedback controller, and correct the target value that is given to the feedback controller based on the predicted value of the specific state quantity and a constraint that is imposed on the specific state quantity.Type: GrantFiled: August 29, 2012Date of Patent: February 21, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hayato Nakada
-
Patent number: 9518520Abstract: The invention relates to a control device applied to an engine including a controlled object and for controlling the operation state of the controlled object such that the controlled output from the controlled object corresponds to the target controlled output. In the invention, when the reference engine state parameter is maintained constant during the predetermined time period and it is predicted that the reference engine state parameter changes at the predetermined time period having elapsed, the primary or secondary predicted controlled output which satisfies the output control condition at the predetermined time period having elapsed assuming that the reference engine state parameter does not change during the predetermined time period is calculated as a look-ahead predicted controlled output and then, the target controlled output setting logic for performing the functions of the target controlled output setting architecture is corrected on the basis of the look-ahead predicted controlled output.Type: GrantFiled: July 11, 2011Date of Patent: December 13, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hayato Nakada
-
Patent number: 9488115Abstract: A device of an internal combustion engine, which has a multicore processor including a plurality of cores mounted thereon and is capable of calculating various calculations relating to an operation of the internal combustion engine in parallel by the plurality of cores, includes a calculation unit that assigns a task of the calculations to at least one of the plurality of cores and performs the calculation, an EGR unit that controls an EGR operation that recirculates a gas flowing in an exhaust system of the internal combustion engine to an intake system, and a control unit that decreases a number of cores that are used in the calculation unit to be smaller as compared with before stop, when the EGR operation is stopped. The calculation unit includes an assigning unit that assigns a task of a specific calculation relating to the EGR operation to one or a plurality of designated cores, and when the EGR operation is stopped, the control unit stops the designated core or cores.Type: GrantFiled: October 4, 2011Date of Patent: November 8, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hayato Nakada
-
Publication number: 20150322871Abstract: A plant control device according to the present invention includes a feedback controller and a reference governor. The feedback controller is configured to determine a control input of a plant by feedback control so as to bring an output value of a control amount of the plant close to a target value. The reference governor is configured to calculate a future predicted value of a specific state quantity of the plant by using a model of a closed loop system including the plant and the feedback controller, and correct the target value that is given to the feedback controller based on the predicted value of the specific state quantity and a constraint that is imposed on the specific state quantity.Type: ApplicationFiled: August 29, 2012Publication date: November 12, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hayato NAKADA
-
Patent number: 9075406Abstract: A control device for internal combustion engine including: a corrector for correcting an target value of each object to be controlled; a predictor for predicting a future state of each of the objects when the objects are controlled according to an initial-target-value or a corrected-target-value of each object; and a determiner for determining whether or not the future state of each object satisfies a constraint condition for the internal combustion engine, wherein the correction of the target value of each object, the prediction of the future state of each object based on the corrected target value corrected by the correction, and the determination whether or not the predicted future state of each object satisfies the constraint condition are repeated until determined so that the predicted future state satisfies the constraint condition. Furthermore, the state of the object to be predicted is the state in the future after a limited predetermined period.Type: GrantFiled: May 10, 2010Date of Patent: July 7, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hayato Nakada