Abstract: It is an object of the invention to enhance the possibility of realizing a required torque in a supercharging region where scavenging occurs in a control apparatus for a supercharged engine. In order to achieve this object, the control apparatus for the supercharged engine according to the invention determines an operation amount of an intake valve driving device from a target in-cylinder air amount that is calculated from a required torque, and determines an operation amount of a throttle from a target intake valve passing air amount that is obtained by adding an amount of air blowing through an interior of a cylinder to the target in-cylinder air amount.

Abstract: An object of this invention is, with respect to a torque-demand-control type controller that subjects two kinds of actuators provided upstream and downstream in an intake passage to coordinated operations based on a requested torque for an internal combustion engine, to enable realization of a pulse-like torque change in a torque decreasing direction that is requested, for example, when performing an upshift operation in an electronically controlled automatic transmission. To achieve this object, according to a controller for an internal combustion engine of this invention, when a pulse component in a torque decreasing direction is included in a requested torque, a second requested torque that does not include the pulse component is generated. In this case, a first actuator provided on the downstream side in the intake passage is operated based on the requested torque.

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 object of the present invention is to control a supercharge pressure in such a manner as not to interfere with warming-up of an exhaust gas purifying catalyst, in an internal combustion engine with a turbo supercharger. To this end, a control device for an internal combustion engine with a turbo supercharger provided by the present invention makes a determined value of a target supercharge pressure with respect to a same target intake pressure smaller when a request to warm up the exhaust gas purifying catalyst is present, as compared with when the request is absent. Note that the target intake pressure is determined based on a target air amount determined from a requested torque for the internal combustion engine. The present control device operates a throttle based on the target intake pressure and an actual supercharge pressure, and operates a wastegate valve based on the target supercharge pressure.

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: An object of the present invention is to control a supercharge pressure in such a manner as not to interfere with warming-up of an exhaust gas purifying catalyst, in an internal combustion engine with a turbo supercharger. To this end, a control device for an internal combustion engine with a turbo supercharger provided by the present invention makes a determined value of a target supercharge pressure with respect to a same target intake pressure smaller when a request to warm up the exhaust gas purifying catalyst is present, as compared with when the request is absent. Note that the target intake pressure is determined based on a target air amount determined from a requested torque for the internal combustion engine. The present control device operates a throttle based on the target intake pressure and an actual supercharge pressure, and operates a wastegate valve based on the target supercharge pressure.

Abstract: A vehicle integrated control device that can request torque having an appropriate magnitude and change speed to be given to an engine control unit from a drive system manager. A first maximum torque and a second maximum torque are presented to a drive system manager from an engine control unit. The drive system manager refers to the first maximum torque and the second maximum torque which are presented, and determines a request torque to be given to the engine control unit. The first maximum torque is a maximum torque that can be realized when only an operation amount of a throttle is actively changed without actively changing an operation amount of a wastegate valve. The second maximum torque is a maximum torque that can be realized when both the operation amount of the throttle and the operation amount of the wastegate valve are actively changed.

Abstract: The present invention is a proposal relating to cooperative manipulation of an actuator which actively changes a supercharging pressure and a throttle in the case of application of torque demand control to an internal combustion engine with a supercharger. A control device provided by the present invention separately determines a target air quantity for manipulation of the throttle, and a target air quantity for manipulation of the actuator. In more detail, driver required torque which is included in required torque is converted into an air quantity in accordance with a predetermined conversion rule, and the air quantity which is obtained by the conversion is determined by calculation as a reference target air quantity. The reference target air quantity is used as a target air quantity for throttle manipulation, and is also used as a target air quantity for actuator manipulation at a normal time.

Abstract: It is an object of the invention to enhance the possibility of realizing a required torque in a supercharging region where scavenging occurs in a control apparatus for a supercharged engine. In order to achieve this object, the control apparatus for the supercharged engine according to the invention determines an operation amount of an intake valve driving device from a target in-cylinder air amount that is calculated from a required torque, and determines an operation amount of a throttle from a target intake valve passing air amount that is obtained by adding an amount of air blowing through an interior of a cylinder to the target in-cylinder air amount.

Abstract: An object of the present invention is to improve controllability over a supercharging pressure in a transient state, in a control device of an internal combustion engine equipped with a turbo supercharger that determines a manipulated variable of an actuator which acts on a rotational speed of a turbine by feedback control based on a deviation between a target state quantity and an actual state quantity. To this end, a control device according to the present invention determines an opening degree of a throttle by feedforward control based on a target intake air amount, and determines a manipulated variable of the actuator by feedback control based on a deviation between a target intake pressure determined from the target intake air amount and an actual intake pressure.

Abstract: An object of the present invention, in a vehicle integrated control device, is to cause a request torque having an appropriate magnitude and change speed to be given to an engine control unit from a drive system manager. To this end, according to a vehicle integrated control device according to the present invention, a first maximum torque and a second maximum torque are presented to a drive system manager from an engine control unit. The drive system manager refers to the first maximum torque and the second maximum torque which are presented, and determines a request torque to be given to the engine control unit. The first maximum torque is a maximum torque that can be realized when only an operation amount of a throttle is actively changed without actively changing an operation amount of a wastegate valve. The second maximum torque is a maximum torque that can be realized when both the operation amount of the throttle and the operation amount of the wastegate valve are actively changed.

Abstract: An object of this invention is, with respect to a torque-demand-control type controller that subjects two kinds of actuators provided upstream and downstream in an intake passage to coordinated operations based on a requested torque for an internal combustion engine, to enable realization of a pulse-like torque change in a torque decreasing direction that is requested, for example, when performing an upshift operation in an electronically controlled automatic transmission. To achieve this object, according to a controller for an internal combustion engine of this invention, when a pulse component in a torque decreasing direction is included in a requested torque, a second requested torque that does not include the pulse component is generated. In this case, a first actuator provided on the downstream side in the intake passage is operated based on the requested torque.

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: An object of the present invention is to control a supercharge pressure in such a manner as not to interfere with warming-up of an exhaust gas purifying catalyst, in an internal combustion engine with a turbo supercharger. To this end, a control device for an internal combustion engine with a turbo supercharger provided by the present invention makes a determined value of a target supercharge pressure with respect to a same target intake pressure smaller when a request to warm up the exhaust gas purifying catalyst is present, as compared with when the request is absent. Note that the target intake pressure is determined based on a target air amount determined from a requested torque for the internal combustion engine. The present control device operates a throttle based on the target intake pressure and an actual supercharge pressure, and operates a wastegate valve based on the target supercharge pressure.

Abstract: A vehicle control apparatus that inhibits fuel efficiency from being aggravated as a result of ignition timing of the internal combustion engine being retarded. The vehicle control apparatus includes a drive system control unit and an engine control unit. The engine control unit adjusts an amount of intake air based on the demanded torque and adjusts ignition timing so as to compensate for any deviation between torque achievable through an adjustment of the amount of intake air and the demanded torque. The drive system control unit calculates desirable torque to be desirably output to the internal combustion engine for achieving a target operating state of the vehicle, and limits a change rate of the desirable torque by using a predetermined guard value determined from torque adjustment capacity of the internal combustion engine and outputs the desirable torque after the limiting as the demanded torque to the engine control unit.

Abstract: The present invention relates to a control device for a spark-ignition internal combustion engine provided with a cylinder pressure sensor and aims to facilitate optimal control of a combustion state even in a situation where an operating condition is variable. A predetermined combustion-related parameter whose value is uniquely determined by behavior of a change in cylinder pressure relative to a crank angle is used as a control value. Ignition timing is calculated based on the control value in accordance with a calculation rule determined according to a current or target operating condition of the internal combustion engine. The control value resulting from calculation based on a target value of a predetermined physical quantity relating to torque of the internal combustion engine in accordance with a predetermined calculation rule is used as a base value and is corrected by feeding back an output value of the cylinder pressure sensor.

Abstract: A required intake air flow rate is converted to a post-model required intake air flow rate (BMtsm) by a base-system normative model, and the inverse model of an intake system model is used to calculate a base-system required throttle opening degree (BTA) so as to achieve the post-model required intake air flow rate (BMtsm). On the other hand, the required in-take air flow rate (Mt) is converted to a post-model required intake air flow rate (HMtsm) by a high-response-system normative model, and the inverse model of the intake system model is used to calculate a high-response-system required throttle opening degree (HTA) so as to achieve the post-model required intake air flow rate (HMTsm). Then, a target throttle opening degree (TAt) is set so as to fall within the range from the base-system required throttle opening degree (BTA) to the high-response-system required throttle opening degree (HTA) and the reduce a variation amount.

Abstract: The present invention is a proposal relating to cooperative manipulation of an actuator which actively changes a supercharging pressure and a throttle in the case of application of torque demand control to an internal combustion engine with a supercharger. A control device provided by the present invention separately determines a target air quantity for manipulation of the throttle, and a target air quantity for manipulation of the actuator. In more detail, driver required torque which is included in required torque is converted into an air quantity in accordance with a predetermined conversion rule, and the air quantity which is obtained by the conversion is determined by calculation as a reference target air quantity. The reference target air quantity is used as a target air quantity for throttle manipulation, and is also used as a target air quantity for actuator manipulation at a normal time.

Abstract: A control apparatus for a supercharged internal combustion engine, which can achieve a target torque accurately even if the target torque contains a high-frequency vibration component. The control apparatus determines a target air quantity and a target boost pressure from a target torque, operates an actuator for air quantity control according to the target air quantity, and operates an actuator for boost pressure control according to the target boost pressure. The target torque is formed to contain a low-frequency torque component that is set at all times based on a torque requirement from a driver and a high-frequency torque component that is set as necessary for a specific type of vehicle control. When the target torque contains only the low-frequency torque component, the target boost pressure is formed using a pressure component corresponding to the low-frequency torque.

Abstract: To balance between air-fuel ratio controllability and torque response performance in a control device for an internal combustion engine performing a throttle delay control. An air quantity requirement is calculated based on torque required of an internal combustion engine. A throttle opening for achieving the air quantity requirement is calculated by using an inverse model of an intake system model that models response of a cylinder intake air quantity relative to an operation of a throttle. A throttle opening delayed by a predetermined delay time Td is outputted as an operation amount to the throttle. When, however, there is no allowance for introducing the delay time Td between the response time of the cylinder intake air quantity to a throttle operation to be achieved at a current engine speed and a torque response time requirement, the delay processing of the throttle opening is restricted by, for example, making the delay time Td zero or shortening the delay time Td.