Abstract: A control method is provided for an internal combustion engine which includes a turbocharger, and which is connected to a stepped automatic transmission. The control method includes judging whether or not an upshift of the automatic transmission is performed; performing a first torque down control by an ignition timing retard of the internal combustion engine during the upshift; judging whether or not a predicted torque estimated from a driving condition of the internal combustion engine is greater than a target torque at an end of the upshift; and performing a second torque down control by the ignition timing retard of the internal combustion engine when the predicted torque is greater than the target torque.

Abstract: Disclosed is a rectilinear motion measuring device which measures the X- and Y-axis displacement errors by detecting displacements of a rectilinearly moving body, while measuring the pitching and yawing errors by detecting the angle of inclination of the moving body and measuring the rolling error by detecting the displacement of the moving body at two different positions. For these purposes, the rectilinear motion measuring device is provided with means for detecting the displacement of the light source of a luminous flux generating means, means for detecting the displacements of the moving body on a magnified scale of .times.2n, and means for detecting the angle of inclination of the rectilinearly moving body.