Patent ID: 8515608
Filing Date: 2013-08-20
Classification: B60K,B60W,F02D,F02N,Y02T,Y10S

Abstract:
1. An engine start control device of a hybrid vehicle that includes an engine and an electric motor, that is capable of running by the engine or the electric motor or capable of running by a cooperation between the engine and the electric motor, and that starts the engine by the electric motor, wherein a series of controls is repeatedly performed and the series of controls includes increasing a rotational speed of the engine to a first rotational speed by the electric motor, supplying fuel to the engine of which rotational speed has been increased to the first rotational speed, detecting a further increase in the rotational speed of the engine, temporarily stopping a supply of electric power to the electric motor when the further increase in the rotational speed of the engine is not detected, and interrupting the supply of fuel to the engine and resuming the supply of electric power to the electric motor when the rotational speed of the engine decreases to a second rotational speed, and the series of controls is terminated as it is determined that the start of the engine has been completed when the further increase in the rotational speed of the engine has been detected, or when the rotational speed of the engine has not decreased to the second rotational speed.