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:
Jun. 25, 2024
Filed:
Mar. 02, 2022
Mazda Motor Corporation, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A hybrid vehicle controlling method is provided. In response to an engine startup demand, when a vehicle target driving force is below a given value, an instruction hydraulic pressure for a hydraulic control circuit is set to a first pressure at which an increase rate in an engagement pressure at a start of engaging of a friction engagement element becomes below a given rate and maintained for a given time period, then set to a second pressure at which an engine-startup engagement pressure is applied to the friction engagement element and maintained until the engine startup is completed, and then set to a third pressure for setting the friction engagement element to an engaged state. When the target driving force is above the given value, the instruction hydraulic pressure is set to the second pressure and maintained until the engine startup is completed, and then set to the third pressure.