Abstract: In a control device for an internal combustion engine, which includes control unit that has a processor with a plurality of cores and that computes various tasks associated with operation of the internal combustion engine, the control unit includes a selecting unit, that selects at least one core used in the computation from among the plurality of cores, a computing unit that distributes the tasks to the at least one core selected by the selecting unit to perform computation, and an acquisition unit that acquires an engine, rotational speed of the internal combustion engine, and, when the engine rotational speed acquired by the acquisition unit is higher than or equal to a predetermined threshold, the selecting unit increases the number of the cores selected as compared with when the acquired engine rotational speed is lower than the predetermined threshold.

Abstract: A control device for an internal combustion engine which does not require fitting of a feed forward term on an occasion of calculation of a fuel amount to be supplied at a time of temperature raising control is provided. According to the present embodiment, by feed forward control using a steady-state DPF model and a steady-state CCO model, a basic amount (feed forward term) of a fuel amount Qinj that is added from a fuel injector 20 in the temperature raising control can be calculated. Namely, the feed forward term can be calculated without depending on a control map. If the feed forward term can be calculated without depending on the control map, fitting of the feed forward term with use of the controlling map is not required.

Abstract: In the case where a constraint condition related to an internal combustion engine is satisfied when a control amount of each of the control objects 35d, 52 is controlled in accordance with the operation amount determined based on initial target values TPcom and TRegr of respective control objects of an internal combustion engine 10, the control amount of each of the control objects is controlled in accordance with the operation amount determined based on the initial target values. In the case where the constraint condition is not satisfied, the initial target values are repeatedly corrected in accordance with a predetermined rule so as to satisfy the constraint condition, and the control amount of each of the control objects is controlled in accordance with the operation amount determined based on the corrected initial target values.

Abstract: A control apparatus for an internal combustion engine is provided that can precisely reflect requirements relating to performance of the internal combustion engine in a control amount of each actuator by compensating for weaknesses in the so-called torque demand control. A requirement value of each of torque, efficiency, and an air-fuel ratio, and engine information are inputted to an engine inverse model. The engine inverse model is then used to calculate actuator requirement values for achieving those requirement values. An actuator direct requirement value directly required of each of actuators is also acquired. Control of the actuators is adapted to be changed between that according to the actuator requirement value and that according to the actuator direct requirement value.

Abstract: The present invention relates to a control device for an internal combustion engine including a first control subject (35D) capable of controlling two different control amounts (Pim and Regr) influencing each other at a low frequency and second control subjects (52 and 33) capable of controlling the control amount at a high frequency. In the present invention, the first control amount and the second control amount are changed by the first control subject, and the first control amount and the second control amount are changed by the second control subject.

Abstract: 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).

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: In a control device for an internal combustion engine, which includes control unit that has a processor with a plurality of cores and that computes various tasks associated with operation of the internal combustion engine, the control unit includes a selecting unit, that selects at least one core used in the computation from among the plurality of cores, a computing unit that distributes the tasks to the at least one core selected by the selecting unit to perform computation, and an acquisition unit that acquires an engine, rotational speed of the internal combustion engine, and, when the engine rotational speed acquired by the acquisition unit is higher than or equal to a predetermined threshold, the selecting unit increases the number of the cores selected as compared with when the acquired engine rotational speed is lower than the predetermined threshold.

Abstract: 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.

Abstract: A delay time is provided in a calculation process until an instructed throttle opening is outputted after a required cylinder inside air filling efficiency is inputted. When calculation timing of a fuel injection quantity comes, an actual cylinder inside air filling efficiency which is achieved in a time ahead by the delay time from the present time is estimated by using an air response model. When a read-ahead time from the present time to closing timing of an intake valve exceeds the delay time, a change amount of the actual cylinder inside air filling efficiency which occurs by the time the read-ahead time elapses from a time point when the delay time elapses is estimated by using an air response model with a deviation between an estimated actual cylinder inside air filling efficiency after the delay time and a target cylinder inside air filling efficiency as a step input value.

Abstract: A time-course change (dM/dt) in the mass of air in an intake passage downstream of a throttle value is estimated through application of a mass conservation law to the air in the passage. A time-course change dTm/dt in the temperature of the air in the passage is estimated through application of an energy conservation law to the air in the passage. The pressure of the air in the passage is estimated on the basis of the mass of the air in the passage obtained through integration of dM/dt with respect to time, the intake air temperature obtained through integration of dTm/dt with respect to time, and a state equation applied to the air in the passage. Only the state equation includes a term regarding the volume of the passage. Therefore, it is possible to easily identify the volume while monitoring only a change in the intake air pressure.

Abstract: The present invention relates to a control device for an internal combustion engine including a first control subject (35D) capable of controlling two different control amounts (Pim and Regr) influencing each other at a low frequency and second control subjects (52 and 33) capable of controlling the control amount at a high frequency. In the present invention, the first control amount and the second control amount are changed by the first control subject, and the first control amount and the second control amount are changed by the second control subject.

Abstract: The invention relates to a model construction apparatus which constructs a model of a plant that includes a plurality of modeling objects, and which has a graphical user interface. The model construction apparatus has: a function of constructing models of the modeling objects separately for each modeling object as object models; a function of constructing the plant model by connecting the object models with each other by connection lines so that conserved quantities output from the object models are able to be exchanged between related object models that are included among the object models; a function of constructing elements that correspond to the object models as modeling object elements on the graphical user interface; and a function of storing the object models while associating the object models with the respective modeling object elements corresponding to the object models so that the object models are able to be invoked via the modeling object elements.

Abstract: The present invention relates to a control device for internal combustion engine comprising: a means for correcting an target value of each object to be controlled; a means 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 means 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, in the present invention, the state of the object to be predicted is the state in the future after a limited predetermined period.

Abstract: A control apparatus for a vehicle drive unit including a control structure of a hierarchical type having a demand generation level, a mediation level, and a control variable setting level and a signal is transmitted in one direction from a higher level of hierarchy to a lower level of hierarchy. The demand generation level includes demand output elements for each capability. The mediation level includes mediation elements, each corresponding to a classified category of demands. Each of the mediation elements collects demand values of the category of which the mediation elements are in charge and performs mediation according to a rule to arrive at a single demand value. The control variable setting level includes an adjuster portion adjusting each of the mediated demand values based on a relationship between each other and control variable calculation elements calculating a control variable of each of a plurality of actuators based on the adjusted demand value.

Abstract: In the case where a constraint condition related to an internal combustion engine is satisfied when a control amount of each of the control objects 35d, 52 is controlled in accordance with the operation amount determined based on initial target values TPcom and TRegr of respective control objects of an internal combustion engine 10, the control amount of each of the control objects is controlled in accordance with the operation amount determined based on the initial target values. In the case where the constraint condition is not satisfied, the initial target values are repeatedly corrected in accordance with a predetermined rule so as to satisfy the constraint condition, and the control amount of each of the control objects is controlled in accordance with the operation amount determined based on the corrected initial target values.

Abstract: A time-course change (dM/dt) in the mass of air in an intake passage downstream of a throttle value is estimated through application of a mass conservation law to the air in the passage. A time-course change dTm/dt in the temperature of the air in the passage is estimated through application of an energy conservation law to the air in the passage. The pressure of the air in the passage is estimated on the basis of the mass of the air in the passage obtained through integration of dM/dt with respect to time, the intake air temperature obtained through integration of dTm/dt with respect to time, and a state equation applied to the air in the passage. Only the state equation includes a term regarding the volume of the passage. Therefore, it is possible to easily identify the volume while monitoring only a change in the intake air pressure.

Abstract: A control apparatus for an internal combustion engine that accurately incorporates demands related to various capabilities of the internal combustion engine. A demand output unit outputs various capability demands of the internal combustion engine, expressed in terms of either torque, efficiency, or an air-fuel ratio data. A torque mediation unit collects only the demand values expressed in terms of torque, and mediates the torque demand values into one. An efficiency mediation unit collects the demand values expressed in terms of efficiency and mediates the efficiency demand values into one. An air-fuel ratio mediation unit collects the demand values expressed in terms of the air-fuel ratio and mediates the air-fuel ratio demand values into one. A control variable computing unit computes control variables of actuators, based upon the torque demand value, efficiency demand value, and air-fuel ratio demand value output from the mediation units.