Title:
INTERNAL COMBUSTION ENGINE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2023090018
Kind Code:
A
Abstract:
To secure an opportunity to purge fuel vapor stagnated in a canister while curbing disturbance in an air-fuel ratio of mixed gas.SOLUTION: A control device controls an internal combustion engine attached with a fuel vapor gas discharge inhibiting device which comprises: a connection passage which is connected to a fuel tank; a canister which traps fuel vapor generated in the fuel tank and flowing through the connection passage; an introduction passage which is connected to the canister and capable of introducing air; a purge gas flow passage which communicates the canister with an intake passage connected to a cylinder of the internal combustion engine and allows purge gas containing the fuel vapor trapped in the canister to be discharged into an intake passage; and a control valve which opens and closes the purge gas flow passage. The control device allows the control valve to be opened under the requirement that a flow rate of air flowing through the intake passage toward the cylinder exceeds a threshold or closes the control valve if the requirement is not satisfied.SELECTED DRAWING: Figure 5
Inventors:
TOGA TETSUYA
OJI NAOKI
KINOSHITA SHINICHI
OJI NAOKI
KINOSHITA SHINICHI
Application Number:
JP2021204733A
Publication Date:
June 29, 2023
Filing Date:
December 17, 2021
Export Citation:
Assignee:
DAIHATSU MOTOR CO LTD
International Classes:
F02M25/08
Attorney, Agent or Firm:
Kazuhiro Akazawa
Takeshi Miyazawa
Takeshi Miyazawa