Engine device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHiromichi YASUDA
Life of this patent
Estimating the term…
Abstract
An engine device is provided with a fuel vapor processor comprising a first supply pipe configured to supply a vaporized fuel gas including fuel vapor generated in a fuel tank, to a downstream side of a compressor in an intake pipe; a first valve provided in the first supply pipe; a second supply pipe configured to supply the vaporized fuel gas to an upstream side of the compressor in the intake pipe; and a second valve provided in the second supply pipe. When a supercharger operates and the first valve is closed, the engine device performs abnormality diagnosis of the second valve, based on a control state of the second valve and a pressure in the fuel tank.
Claims5
An engine device, comprising:
- an engine configured to receive a supply of a fuel from a fuel tank and output a power;
- a supercharger having a compressor that is placed in an intake pipe of the engine;
- a fuel vapor processor comprising a first supply pipe configured to supply a vaporized fuel gas including fuel vapor generated in the fuel tank, to a downstream side of the compressor in the intake pipe;
- a first valve provided in the first supply pipe;
- a second supply pipe configured to supply the vaporized fuel gas to an upstream side of the compressor in the intake pipe;
- and a second valve provided in the second supply pipe;
- and
- a controller programmed to control the fuel vapor processor,
- wherein when the supercharger operates and the first valve is closed, the controller performs abnormality diagnosis of the second valve, based on a control state of the second valve and a pressure in the fuel tank.
Dependencies are inferred from the claim text.