Patent ID: 7316108
Filing Date: 2008-01-08
Classification: B60W,F01N,Y02T

Abstract:
1. A hybrid vehicle, comprising: a drive system including an electric drive and an internal combustion engine; said internal combustion engine having a combustion chamber formed therein; said internal combustion engine including a cylinder head having an exhaust gas outlet formed therein; said internal combustion engine including a fuel injection device for directly injecting fuel into said combustion chamber and a spark-ignition device for igniting the fuel in said combustion chamber; said internal combustion engine having a rated rotational speed, a cut-off speed, a rated power, and a given mean pressure present at the rated power; said internal combustion engine, when operating in a given rotational speed/load range, operating with a stoichiometric setpoint value for a fuel/air mixture in at least a portion of the given rotational speed/load range, the portion of the given rotational speed/load range being a percentage value selected from the group consisting of 30%, 50%, 70%, 80% and 90% of the given rotational speed/load range; and said internal combustion engine operating in the given rotational speed/load range if said internal combustion engine operates in a range between 80% of the rated rotational speed and the lesser of 120% of the rated rotational speed and the cut-off speed of the internal combustion engine, and if said internal combustion engine operates with more than 80% of the given mean pressure present at the rated power; an exhaust gas control system downstream of said combustion chamber; said exhaust gas control system including an exhaust tract and a catalytic converter provided in said exhaust tract; said catalytic converter having an end face facing said cylinder head; said exhaust tract including an exhaust pipe between said end face of said catalytic converter and said exhaust gas outlet of said cylinder head; and said exhaust pipe having a length of at least 500 mm.