Japan, Feb. 24 -- OSAKA GAS CO LTD has got intellectual property rights for 'FAULT DIAGNOSIS DEVICE.' Other related details are as follows:
Application Number: JP,2022-040536
Category (FI): G01R31/50
Stage: PROBLEM TO BE SOLVED: To provide a fault diagnosis device capable of diagnosing a fault of a temperature sensor in an inexpensive configuration.SOLUTION: A fault diagnosis device 1 includes: a switch 10 capable of switching to a first state for applying first potential to a temperature sensor 2 and a second state for applying second potential to it; a capacitor 20 for composing an integral circuit with a resistor R that the temperature sensor 2 has; a diagnosis instruction output part 30 for outputting a diagnosis instruction including at least one of a charge instruction for charging the capacitor 20 and a discharge instruction for discharging the capacitor 20 to the switch 10; a normal time range setting part 40 for setting a normal time range; a voltage acquisition part 50 for acquiring a voltage value of voltage in an output terminal 2B; and a determination part 60 for determining whether or not the temperature sensor 2 fails on the basis of a comparison result between a voltage value acquired by the voltage acquisition part 50 and lapse time and a normal time range until the voltage value reaches a predetermined reference value from a first point of time.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: March 15, 2022
Publication Date: Sept. 28, 2023
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
