Abstract: Aspects of the disclosure are directed to controller for an internal combustion engine. The controller can, in each combustion cycle that composes a change cycle, calculate an average of control amounts from a first combustion cycle to an nth (1<=n<=N) combustion cycle and calculate an error of the average with respect to an average of a reference normal population. Further, the controller can set both a positive threshold and a negative threshold based on a standard error of the reference normal population in the case where the number of data is n. Subsequently, the controller can change the operation amount to make the error approach the positive threshold or the negative threshold when the error exceeds neither the positive threshold nor the negative threshold at any combustion cycle.

Abstract: A controller according to the present disclosure, in each combustion cycle that composes a change cycle, calculates the average ?n of control amounts from the first combustion cycle to the nth (1<=n<=N) combustion cycle and calculates the error ?n-?o of the average ?n with respect to the average ?o of a reference normal population. Also, the controller sets both a positive threshold Z?/2*?o/n1/2 and a negative threshold ?Z?/2*?o/n1/2 based on the standard error ?o/n1/2 of the reference normal population in the case where the number of data is n. Then, the controller chooses an operation amount to be changed from a plurality of operation amounts, based on a comparison between a series of the errors ?n-?o and a series of the positive thresholds Z?/2*?o/n1/2 and a comparison between the series of the errors ?n-?o and a series of the negative thresholds ?Z?/2*?o/n1/2.

Abstract: A control device according to the present invention includes a plurality of arithmetic units that operate in parallel. A sensor value of the control amount is input to the first arithmetic unit in a signal transmission sequence, and a correction amount for the manipulation amount is output from the last arithmetic unit in the signal transmission sequence. The first arithmetic unit has a controller that produces an output by processing the input sensor value, and the arithmetic units other than the first arithmetic unit has a delay element that delays an input by a predetermined number of steps and a controller that produces an output by processing the delayed input.

Abstract: A control apparatus configured to control a power unit of a vehicle includes an electronic control unit configured to i) store a set of measurement values of at least one physical parameter representing a plurality of conditions of the power unit; ii) approximate the stored set of the measurement values, by mixed probability distribution, so as to obtain a first probability distribution of the measurement values representing a first condition, and a second probability distribution of the measurement values representing a second condition; iii) set a discrimination boundary between values representing the first condition and values representing the second condition, between mean values of the first probability distribution and the second probability distribution; and iv) control the power unit, according to a result of comparison between a measurement value and the discrimination boundary.

Abstract: A control device for an internal combustion engine includes at least one processor and a memory configured to store a program. The at least one processor is configured to execute, by executing the program, a process of deciding a manipulated variable of the internal combustion engine from a control input value, in accordance with a predetermined conversion rule, a process of calculating a sample value of the controlled variable, a process of calculating a reference expectation value of the controlled variable from the control input value, a process of performing a hypothesis test for a null hypothesis that an average value of a predetermined number of recent sample values of sample values of the controlled variable is equal to the reference expectation value, and a process of modifying the conversion rule by an adaptive control when the null hypothesis is rejected.

Abstract: A control device includes a processor configured to: calculate an estimated value of a contribution of a disturbance in a transition of an internal state of a dynamic power unit, based on a last internal state and a last control input by which the internal state is controlled; determine the control input so as to minimize a difference from a reference value of the control input by which the internal state becomes a predetermined internal state, under a condition that a sum of the estimated value of the contribution and a value of the constraint condition expression when there is not the disturbance at the current time is equal to or more than a value resulting from reducing a last value of the constraint condition expression by a predetermined ratio; and control the dynamic power unit in accordance with the determined control input.

Abstract: A controller according to the present disclosure, in each combustion cycle that composes a change cycle, calculates the average ?n of control amounts from the first combustion cycle to the nth (1<=n<=N) combustion cycle and calculates the error ?n-?o of the average ?n with respect to the average ?o of a reference normal population. Also, the controller sets both a positive threshold Z?/2*?o/n1/2 and a negative threshold ?Z?/2*?o/n1/2 based on the standard error ?o/n1/2 of the reference normal population in the case where the number of data is n. Then, the controller chooses an operation amount to be changed from a plurality of operation amounts, based on a comparison between a series of the errors ?n-?o and a series of the positive thresholds Z?/2*?o/n1/2 and a comparison between the series of the errors ?n-?o and a series of the negative thresholds ?Z?/2*?o/n1/2.

Abstract: A controller according to the present disclosure, in each combustion cycle that composes a change cycle, calculates the average ?n of a control amounts from the first combustion cycle to the nth (1<=n<=N) combustion cycle and calculates the error ?n??o of the average ?n with respect to the average ?o of a reference normal population. Also, the controller sets both a positive threshold Z?/2*?o/n1/2 and a negative threshold ?Z?/2*?o/n1/2 based on the standard error ?o/n1/2 of the reference normal population in the case where the number of data is n. Then, the controller changes the operation amount to make the error ?n??o approach the positive threshold Z?/2*?o/n1/2 or the negative threshold ?Z?/2*?o/n1/2 when the error ?n??o exceeds neither the positive threshold Z?/2*?o/n1/2 nor the negative threshold ?Z?/2*?o/n1/2 at any combustion cycle.

Abstract: The control device controls a control parameter based on values of operating parameters. The control device is configured to: acquire current values of the operating parameters; calculate, using a model, a probability distribution of an output parameter with respect to a value of the control parameter based on the acquired current values of the operating parameters; and set a target value of the control parameter based on the calculated probability distribution of an output parameter so that the probability of the value of the output parameter becoming equal to greater than a target value is most approached the target probability. The control parameter, operating parameters, and output parameter are parameters different from each other. The model is a model using a Gaussian process which outputs the probability distribution of an output parameter if values of the operating and control parameters are input.

Abstract: A second core calculates an intervening variable that is defined by an inner function, when a time derivative of a state variable is expressed by a function having the state variable, the inner function, and an observable input variable as independent variables. A first core calculates a function by using respective values of the state variable, the intervening variable, and the input variable, and obtains a value of the state variable by time-integration of a value of the function. In the calculation of the function, the value of the state variable calculated in previous time, a value of the intervening variable calculated by the second core in the previous time, and a value of the input variable inputted in this time are used.

Abstract: The present invention relates to a control device design method for a control device that determines a manipulation amount of a control object having a dead time by feedback control so as to bring a control amount of the control object closer to a target value. The method according to the present invention includes a step of designing a feedback loop that computes a correction amount for the manipulation amount using a plurality of controllers including a prediction model of the control object, a step of deriving the same number of delay elements as the plurality of controllers from a dead time element of the prediction model, and a step of allocating the plurality of controllers associated with the delay elements to a plurality of arithmetic units so that the computation of the feedback loop is performed by parallel computation by the plurality of arithmetic units that operate in parallel.

Abstract: The present invention relates to a control device design method for a control device that determines a manipulation amount of a control object having a dead time by feedback control so as to bring a control amount of the control object closer to a target value. The method according to the present invention includes a step of designing a feedback loop that computes a correction amount for the manipulation amount using a plurality of controllers including a prediction model of the control object, a step of deriving the same number of delay elements as the plurality of controllers from a dead time element of the prediction model, and a step of allocating the plurality of controllers associated with the delay elements to a plurality of arithmetic units so that the computation of the feedback loop is performed by parallel computation by the plurality of arithmetic units that operate in parallel.

Abstract: A second core calculates an intervening variable that is defined by an inner function, when a time derivative of a state variable is expressed by a function having the state variable, the inner function, and an observable input variable as independent variables. A first core calculates a function by using respective values of the state variable, the intervening variable, and the input variable, and obtains a value of the state variable by time-integration of a value of the function. In the calculation of the function, the value of the state variable calculated in previous time, a value of the intervening variable calculated by the second core in the previous time, and a value of the input variable inputted in this time are used.

Abstract: As shown in FIG. 2, a common element is allocated to core 1, element #1 to element #n are allocated to core 2 to core n+1, and an overall correction element is allocated to core n+2. Element #1 to element #n are unique elements that are respectively independent. The common element and the overall correction element are elements that are dependent to element #1 to element #n. By separating a plurality of elements in accordance with properties of the operations and allocating the elements to different cores in this manner, it is possible to satisfy not only demands with respect to individual actuators, but also to satisfy comprehensive demands with respect to all the actuators.

Abstract: A control device acquires various requests concerning the performance of an internal combustion engine and sets a request-specific constraint on a control amount value. The constraint is expressed as a set of constraint index values assigned to individual control amount values, and the distribution of the constraint index values is varied in accordance with the type of a request. The control device integrates the constraint index values for each control amount value and then, in accordance with the distribution of the integrated constraint index value for a control amount, determines a limitation of the control amount. The control device determines a target control amount value within the limitation and controls the internal combustion engine in accordance with the target control amount.

Abstract: An apparatus controls an internal combustion engine provided with an EGR device having an EGR passage and an EGR valve that is provided in the EGR passage and can adjust an EGR amount. This apparatus includes a controller that estimates state parameters of the internal combustion engine that affect the behavior of the EGR gas within a predetermined period of time; sets constraints on the EGR amount within the predetermined period on the basis of an approximated dynamics obtained by approximating a true dynamics, which is a transition of the EGR amount within the predetermined period, so that approximated values do not exceed the true dynamics; determines a target value of the EGR amount according to the estimated state parameters within a range of the EGR amount on which the constraints that have been set; and controls the EGR valve so that the EGR amount becomes the determined target value.

Abstract: A control device according to the present invention includes a plurality of arithmetic units that operate in parallel. A sensor value of the control amount is input to the first arithmetic unit in a signal transmission sequence, and a correction amount for the manipulation amount is output from the last arithmetic unit in the signal transmission sequence. The first arithmetic unit has a controller that produces an output by processing the input sensor value, and the arithmetic units other than the first arithmetic unit has a delay element that delays an input by a predetermined number of steps and a controller that produces an output by processing the delayed input.

Abstract: The present invention relates to a control device design method for a control device that determines a manipulation amount of a control object having a dead time by feedback control so as to bring a control amount of the control object closer to a target value. The method according to the present invention includes a step of designing a feedback loop that computes a correction amount for the manipulation amount using a plurality of controllers including a prediction model of the control object, a step of deriving the same number of delay elements as the plurality of controllers from a dead time element of the prediction model, and a step of allocating the plurality of controllers associated with the delay elements to a plurality of arithmetic units so that the computation of the feedback loop is performed by parallel computation by the plurality of arithmetic units that operate in parallel.

Abstract: Disclosed are a control device and a control method that are used with an internal combustion engine in which the air-fuel ratio in the vicinity of an ignition plug differs from the overall air-fuel ratio in a cylinder, and capable of properly fulfilling demands concerning various capabilities of the internal combustion engine by accurately reflecting each of the demands in the operation of each actuator. Three physical quantities, namely, a torque, an efficiency, and an air-fuel ratio, are used as controlled variables for the internal combustion engine. Target values for the controlled variables are then set by integrating at least some of demands concerning a capability of the internal combustion engine into the three physical quantities.

Abstract: The present invention relates to a multi-core parallel computing device that repeatedly processes a plurality of tasks having a restricted processing completion time using one or more cores having a variable operation frequency. When activating a new core and allocating the plurality of tasks to the new core and an operating core, the parallel computing device according to the present invention increases the operation frequency of the operating core.