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:
Apr. 06, 2021
Filed:
Dec. 22, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Takayuki Hosogi, Toyota, JP;
Hisayuki Ito, Toyota, JP;
Noboru Takagi, Toyota, JP;
Kazuyoshi Shimatani, Hamamatsu, JP;
Takahiko Aoyagi, Anjo, JP;
Masahiro Yoshida, Toyota, JP;
Yoshinobu Uchiyama, Toyota, JP;
Toshiki Sato, Takahama, JP;
Hirotaka Watanabe, Anjo, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
AISIN SEIKI KABUSHIKI KAISHA, Kariya, JP;
Abstract
A control device for an onboard engine is configured to control the oil discharge pressure of an oil pump and execute, when determining that there may be an abnormality in the control of the oil discharge pressure, a change process that increases the target discharge pressure to a value that is greater than that before it is determined that there may be an abnormality in the control. When a discharge pressure sensor value in a situation in which the discharge pressure is being controlled based on the target discharge pressure increased through execution of the change process does not become greater than or equal to a discharge pressure threshold, the control device sets an upper limit for the engine rotation speed and increases the upper limit as the discharge pressure sensor value increases.