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:
May. 19, 2015
Filed:
Mar. 17, 2011
Ryuji Okamura, Toyota, JP;
Yuka Sobue, Nagoya, JP;
Chika Yoshioka, Toyota, JP;
Yu Hiei, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
The invention provides a vehicle having an obstacle detection device capable of improving the control accuracy of a motor and preventing the influence of noise on a sensor. A vehicle includes motorsandwhich are AC motors, an inverterthat drives the motors, an ultrasonic sonarwhich is, for example, a detector for detecting an obstacle around the vehicle, a frequency determining devicewhich determines whether noise generated from the inverteris likely to interfere with a detection frequency of the detector, and a sonar ECUwhich changes the carrier frequency of the inverterwhen it is determined that the noise is likely to interfere with the detection frequency.