Electronic Control Device and Flow Rate Measurement System

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20230408087A1
SERIAL NO

18038257

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An electronic control device includes: a flow rate calculation unit that calculates a flow rate of intake air based on an output signal of a flow rate measurement device assembled to an intake pipe; a flow rate correction value calculation unit that calculates an average value, a maximum value, and a minimum value of the flow rate of the intake air, calculated by the flow rate calculation unit, during a predetermined period, and an amplitude of a signal with one or more frequencies equal to or higher than a fundamental frequency of the output signal of the flow rate measurement device and included in the output signal of the flow rate measurement device, and calculates a correction value for the flow rate of the intake air based on calculation results; and a flow rate correction unit that corrects the flow rate of the intake air based on the correction value.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
HITACHI ASTEMO LTD2520 TAKABA HITACHINAKA-SHI IBARAKI 312-8503

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
ISHIKAWA, Hiroto Hitachinaka-shi, Ibaraki, JP 14 35
SUZUKI, Kunihiko Hitachinaka-shi, Ibaraki, JP 272 4645

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation