Title:
ENGINE DEVICE
Document Type and Number:
Japanese Patent JP2022089478
Kind Code:
A
Abstract:
To detect boiling of fuel in a fuel tank.SOLUTION: A target discharge flow rate of a fuel pump is set by using feedback control using a proportional term and an integration term on the basis of a difference between fuel pressure that is pressure of fuel in a fuel flow passage and a target fuel pressure to control the fuel pump. In this case, a difference is calculated by subtracting a second processing value obtained by applying annealing processing of second responsiveness lower than first responsiveness to the integration term from the integration term or a first processing value obtained by applying annealing processing of the first responsiveness to the integration term in the feedback control, and when the calculated difference is a difference threshold value or greater, boiling of the fuel in the fuel tank is detected.SELECTED DRAWING: Figure 12
Inventors:
FUKUI KEITA
IDOGAWA MASANAO
UCHIDA TAKAHIRO
UCHIYAMA TOMOYUKI
MOTOFURU TAKESHI
WATANABE MIKIO
OKADA MASAHIDE
FUJITA TOMOHIRO
IDOGAWA MASANAO
UCHIDA TAKAHIRO
UCHIYAMA TOMOYUKI
MOTOFURU TAKESHI
WATANABE MIKIO
OKADA MASAHIDE
FUJITA TOMOHIRO
Application Number:
JP2020201898A
Publication Date:
June 16, 2022
Filing Date:
December 04, 2020
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02M37/20; F02D41/22; F02M37/08; F02M69/00
Attorney, Agent or Firm:
Aitec International Patent Office