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:
Jan. 20, 2026
Filed:
Feb. 08, 2022
Hitachi Astemo, Ltd., Ibaraki, JP;
Vaibhav Gupta, Ibaraki, JP;
Yuichiro Minakuchi, Ibaraki, JP;
HITACHI ASTEMO, LTD., Ibaraki, JP;
Abstract
Realized is a technique of highly accurately calculating a state quantity of a vehicle. An ECU () of a vehicle () includes a ground contact load calculating section (), an input quantity calculating section (), a first state quantity calculating section (), an observable calculating section (), a second state quantity calculating section (), and a damper ECU (). The ECU () calculates a first state quantity of the vehicle () by inputting, into a vehicle model, a value calculated from a G sensor value and/or the like, and calculates a second state quantity of the vehicle () by correcting the first state quantity with use of an observable which is calculated from a ground contact load and a spring constant gain of a tire.