Patent ID: 9309816
Filing Date: 2016-04-12
CPC Classification: F02B,F02D,Y02T

Claim Text:
1. A variable compression ratio V-type internal combustion engine with a joined cylinder block of two cylinder groups that makes the joined cylinder block move relatively to a crankcase, comprising: a control unit configured to measure, for each cylinder group at each relative movement position of the joined cylinder block, a parameter which enables estimation of a temperature or pressure inside the cylinder at top dead center based on the actual compression ratio, and to control the intake valve closing timings of the cylinders so that the temperature or pressure inside the cylinder at top dead center of one cylinder group which was estimated based on the actual compression ratio of the one cylinder group by using said parameter of the one cylinder group and the temperature or pressure inside the cylinder at top dead center of the other cylinder group which was estimated based on the actual compression ratio of the other cylinder group by using said parameter of the other cylinder group become equal.