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. 26, 2021
Filed:
Oct. 04, 2019
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Sung-Do Kim, Seoul, KR;
Min-Su Kang, Paju-si, KR;
Chang-Seok You, Hwaseong-si, KR;
Dong-Hun Lee, Anyang-si, KR;
HYUNDAI MOTOR COMPANY, Seoul, KR;
KIA MOTORS CORPORATION, Seoul, KR;
Abstract
A method of correcting a signal delay of a Hall sensor for an air compressor motor when the air compressor motor rotates at a high speed includes: a first step of calculating an offset angle θ from a voltage equation, to which a q-axis voltage and a d-axis voltage are applied, by performing zero current control when an inertia braking section occurs during an operation of the motor; a second step of calculating a reference offset angle θof the Hall sensor and a delay time t by using an angular velocity ω at any two points in the inertia braking section by using the equation for calculating the offset angle θ; and a third step of calculating a corrected q-axis voltage and a corrected d-axis voltage through the zero current control corrected and comparing the corrected q-axis voltage and the corrected d-axis voltage with a reference error.