Electric supercharger

Abstract

A motor-driven supercharger includes a compressor, an electric motor, and a controller. The compressor is arranged in the intake passage of the engine. The electric motor drives the compressor. The controller is configured to start detection of the rotational position of the electric motor at least on the condition that a brake operation amount, which is the operation amount of a brake operation member of the vehicle, becomes less than or equal to a threshold. The controller is configured to start forced induction with the electric motor when an acceleration operation amount, which is the operation amount of an acceleration operation member of the vehicle, becomes more than or equal to a threshold.

Dependencies are inferred from the claim text.