Patent ID: 8249767

Claim:
An eco-drive assist apparatus that displays a quantity of eco-drive that indicates a degree of ecology or economy in driving in a hybrid vehicle equipped with an engine and a motor, comprising: a first part configured to calculate the quantity of eco-drive on the basis of a vehicle power generated in the vehicle; and a second part configured to display an eco-drive judgment threshold value that indicates whether the vehicle is in an eco-drive state and an engine startup threshold value that indicates whether the engine has been started up, configured to cause the quantity of eco-drive to be displayed in a graphic manner as a relative quantity to the eco-drive judgment threshold and the engine startup threshold value, and configured to cause the quantity of eco-drive to be displayed on a boundary of the engine startup threshold value or displayed at a position where the quantity of eco-drive is worse than the engine startup threshold value when the engine has been started up, the second part causing the engine startup threshold value not to be displayed when the engine has been started up and a driver's operation needs no vehicle power.