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:
Nov. 16, 2021
Filed:
Oct. 15, 2020
Jtekt Corporation, Osaka, JP;
JTEKT CORPORATION, Osaka, JP;
Abstract
A control apparatus configured to control a four-wheel drive vehicle configured to drive right and left front wheels and right and left rear wheels includes an electronic control unit. The electronic control unit calculates a vehicle body speed based on rotation speeds of the wheels and a cumulative value of accelerations in a longitudinal direction of the vehicle. The accelerations are detected by an acceleration sensor. The electronic control unit calculates the vehicle body speed based on the cumulative value of the accelerations. The electronic control unit calculates a correction value based on a lowest rotation speed among the rotation speeds of the wheels under a predetermined condition. The electronic control unit performs correction by using the correction value to make the vehicle body speed closer to a vehicle body speed conversion value of the lowest rotation speed.