摘要:
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.
摘要:
An anomaly determination device executes a first anomaly determination process and a second anomaly determination process. The anomaly determination device determines in the first anomaly determination process that an anomaly is present in a link mechanism when a fully-closed-time detection value is outside a closed-side normal range and when a fully-open-time detection value is outside an open-side normal range. The anomaly determination device determines in the second anomaly determination process that an anomaly is present in the link mechanism if the difference between the fully-closed-time detection value and the fully-open-time detection value is outside a normal distance range set in advance when it is not determined in the first anomaly determination process that an anomaly is present in the link mechanism.
摘要:
An internal combustion engine control device the present invention provides is a control device that can realize both of request torque and a request A/F for each of cylinder groups with high precision, even when the request A/F differs at each of the cylinder groups. The present control device sets a reference A/F within a range from the leanest A/F to the richest A/F out of the request A/Fs to the respective cylinder groups. The present control device calculates a target air quantity for realizing the request torque under the reference A/F, based on data that defines a relation between engine output torque and an air quantity in relation to an A/F. The present control device controls a throttle opening in accordance with the target air quantity, and controls fuel injection amounts of the respective cylinders in accordance with the request A/F s to the respective cylinder groups.
摘要:
An internal combustion engine control device the present invention provides is a control device that can realize both of request torque and a request A/F for each of cylinder groups with high precision, even when the request A/F differs at each of the cylinder groups. The present control device sets a reference A/F within a range from the leanest A/F to the richest A/F out of the request A/Fs to the respective cylinder groups. The present control device calculates a target air quantity for realizing the request torque under the reference A/F, based on data that defines a relation between engine output torque and an air quantity in relation to an A/F. The present control device controls a throttle opening in accordance with the target air quantity, and controls fuel injection amounts of the respective cylinders in accordance with the request A/F s to the respective cylinder groups.
摘要:
An integrated control apparatus (60) includes an internal combustion engine (2) configured to be operated at a lean air-fuel ratio, a stepped automatic transmission (40), a powertrain manager (62), and an engine controller (64). The powertrain manager (62) is configured to: output a target torque (TQreq1) and a advance torque command (TQreq2) to the engine controller (64); start decreasing the target torque (TQreq1) after a specified time elapses from a timing of the upshifting instruction; and decrease the advance torque command (TQreq2) before the decrease of the target torque (TQreq1). The engine controller (64) is configured to: start a reduction in the air amount in accordance with a magnitude of decrease of the advance torque command (TQreq2); start reducing the air amount between the start of the decrease of the advance torque command (TQreq2) and the start of the decrease of the target torque (TQreq1); and adjust the air-fuel ratio in accordance with a deviation between the target torque (TQreq1) and a torque that is estimated from the lean air-fuel ratio and the air amount.
摘要:
A target air volume for attaining a torque demand is back-calculated from the torque demand by using a parameter that contributes to the efficiency for converting air volume into torque. The parameter value begins to change to decrease the conversion efficiency in response to the torque demand dropping to a second reference value or below and then gradually changes to decrease the conversion efficiency to conform to a further decrease in the torque demand moving from the second reference value toward a first reference value. Here, the first reference value is calculated from the speed of the internal combustion engine, and the second reference value is calculated from an air volume that can attain the first reference value under a second air-fuel ratio and a first air-fuel ratio. While the torque demand is greater than the first reference value, the target air-fuel ratio is set to the first air-fuel ratio. In addition, the target air-fuel ratio is switched from the first air-fuel ratio to a second air-fuel ratio in response to the torque demand being decreased to the first reference value or lower.