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. 04, 2022
Filed:
Apr. 27, 2021
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Tomonari Sawada, Nagoya, JP;
Fumio Inoue, Okazaki, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A headlamp control device estimates, in a case where an ambient illuminance of a subject vehicle is equal to or lower than a predetermined switching illuminance when a state of a headlamp is the ON state, a time required for the subject vehicle to travel to an entrance of a tunnel in front of the subject vehicle, as a first time, switches, in a case where the first time is longer than a first determination time, the headlamp state from a low-beam state to a high-beam state, and, keeps, in a case where the first time is equal to or shorter than the first determination time, the headlamp state as the low-beam state.