CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

摘要

A turbocharger that includes a turbine and a compressor, an electric supercharger that is arranged in an intake passage, and a control device that increases a rotational speed of the electric supercharger upon receipt of a torque increase request with respect to the internal combustion engine are provided. During a process in which the rotational speed of the electric supercharger is increasing, if the rotational speed arrives at a predetermined switching rotational speed “Ntec”, the control device decreases a rate of increase in the rotational speed from a first rate of increase “Nteup1” to a second rate of increase “Nteup2” (

主权项

1. A control device for an internal combustion engine that controls an internal combustion engine comprising a turbocharger having a turbine that is arranged in an exhaust passage and a compressor that is arranged in an intake passage, and an electric supercharger that is provided in the intake passage,
the control device causing a rotational speed of the electric supercharger to increase at a first rate of increase upon receipt of a torque increase request with respect to the internal combustion engine, wherein: the control device is configured so that, during a process in which a rotational speed of the electric supercharger is increasing, if the rotational speed arrives at a predetermined switching rotational speed, the control device changes a rate of increase in the rotational speed from the first rate of increase to a second rate of increase that is less than the first rate of increase; and the control device is configured to set the switching rotational speed based on at least any one of an engine speed of the internal combustion engine, a rate of increase in the engine speed, and a supercharging pressure difference between a target supercharging pressure and an actual supercharging pressure, and to also set the second rate of increase based on at least any one of the engine speed of the internal combustion engine, the rate of increase in the engine speed, and a supercharging pressure difference between a target supercharging pressure and an actual supercharging pressure.