CONTROL DEVICE FOR HYBRID VEHICLE

摘要

PROBLEM TO BE SOLVED: To prevent an intake air passage from being closed due to condensation of moisture in EGR (Exhaust Gas Recirculation) gas occurring when a hybrid vehicle is driven under a low temperature environment.

SOLUTION: A hybrid vehicle 1 having an internal combustion engine 10 and a motor as a driving source includes an exhaust returning passage 42 for introducing EGR gas to the intake air passage 19 communicated with a combustion chamber 16 of the internal combustion engine 10. A heated intake air passage 21 for introducing heated intake air is formed so as to be branched at the upstream side of the intake air passage 19. Then, the intake air passage 19 is selectively communicated/interrupted with/from the upstream side of the intake air passage 19 and the heated intake air passage 21 by a switching valve 22. This switching valve 22 is controlled to be driven so that the upstream side of the intake air passage 19 can be communicated with the heated intake air passage 21 when intake air temperature in the intake air passage 19 measured by an intake air temperature measurement sensor 14 is less than a preset first set temperature.

COPYRIGHT: (C)2010,JPO&INPIT