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:
Sep. 14, 2021
Filed:
Jul. 23, 2019
Hitachi Automotive Systems Americas, Inc., Harrodsburg, KY (US);
Frank Warren Hunt, West Bloomfield, MI (US);
Anthony P. Boone, Westland, MI (US);
Prashanth Avireddi, Farmington Hills, MI (US);
Nicholas Ryan Dal Pra, Farmington, MI (US);
Zachariah Rabatah, Farmington Hills, MI (US);
HITACHI ASTEMO AMERICAS, INC., Harrodsburg, KY (US);
Abstract
In some examples, a system includes an airflow sensor disposed at least partially within an air intake system for an engine. The airflow sensor may be configured to measure a flow rate of air flowing past the airflow sensor in the air intake system, and includes a sensor element and a heater associated with the sensor element. A heater control circuit may control the heater to control a temperature of the sensor element. Further, a processor may be configured by executable instructions to cause the heater control circuit to, in a first operation mode, maintain the sensor element at a higher temperature range, and, in a second operation mode, maintain the sensor element at a lower temperature range that is above an ambient temperature and that is lower than the higher temperature range.