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:
Feb. 20, 2024
Filed:
Aug. 27, 2021
Hyundai Motor Company, Seoul, KR;
Kia Corporation, Seoul, KR;
Se Hoon Park, Hwaseong-si, KR;
Hyundai Motor Company, Seoul, KR;
Kia Corporation, Seoul, KR;
Abstract
A system and method for controlling switching of an electric vehicle to four-wheel drive are provided. The system includes a first motor connected to main drive wheels and configured to output a first torque, a second motor connected to subsidiary drive wheels and configured to output a second torque, a disconnector mounted on an axle shaft for the subsidiary drive wheels, a driver requested torque detector configured to detect a driver requested torque, and a controller configured to release a set output limit of the first motor for a designated time and simultaneously release a set output limit of the second motor when the driver requested torque is greater than or equal to a reference requested torque, and control the first motor to output a maximum torque exceeding the set output limit to the main drive wheels until the disconnector is engaged.