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. 24, 2023
Filed:
Apr. 22, 2022
Tongji University, Shanghai, CN;
Piqiang Tan, Shanghai, CN;
Chaojie Yao, Shanghai, CN;
Lishuang Duan, Shanghai, CN;
Yingjie Chen, Shanghai, CN;
Zhiyuan Hu, Shanghai, CN;
Diming Lou, Shanghai, CN;
TONGJI UNIVERSITY, Shanghai, CN;
Abstract
A method for determining NOx sensor data falsification based on remote emission monitoring, includes the steps of: acquiring a plurality of vehicle data sets and urea level data of to-be-tested reference vehicles, wherein vehicle data include NOx sensor readings and corresponding engine data vectors; acquiring urea level data of reference vehicles; calculating standard urea consumption per kilometer; () acquiring an average distribution probability of the vehicle data of the to-be-tested vehicles through a probability distribution evaluation step; counting a total proportion of invalid or negative NOx sensor readings in the plurality of vehicle data sets; determining whether the data of the to-be-tested vehicles satisfy one or more falsification conditions; if so, determining that the data from the NOx sensors of the to-be-tested vehicles are falsified; otherwise, determining that the data from the NOx sensors of the to-be-tested vehicles are not falsified.