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:
Aug. 22, 2023
Filed:
Jan. 07, 2019
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Taku Takahama, Yokohama, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
A vehicle control apparatus calculates an approximation equation of an N-th degree function as a movement trajectory of a preceding vehicle from at least two pieces of relative position information. The vehicle control apparatus also calculates a coefficient of a predetermined degree in each approximation equation, and in the calculation of the coefficient of the predetermined degree and uses an approximation equation calculated from the at least two pieces of relative position information acquired when setting a retrospective range to the same range or a narrower range compared to when calculating a coefficient of a relatively low degree when calculating a coefficient of a relatively high degree. The vehicle control apparatus also uses an approximation equation when setting the retrospective range to a narrower range compared to when calculating a coefficient of a lowest degree at least when calculating a coefficient of a highest degree.