The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 2020
Filed:
May. 28, 2019
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Tatsuhiko Akita, Okazaki, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
An evaporative fuel treatment apparatus includes a canister, a vapor passage, an outside air introduction passage, a purge passage that connects the canister and an intake passage to each other, a sealing valve configured to open/close a flow channel of the vapor passage, a tank internal pressure sensor, a pressure sensor configured to detect a vapor pressure; and an electronic control unit. The electronic control unit is configured to determine whether or not there is an abnormality in the tank internal pressure sensor based on a change in the vapor pressure in changing over the sealing valve from a closed state to an open state, when an amount of change in the tank pressure in changing over the sealing valve from the closed state to the open state is lower than a first predetermined value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile