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:
Jun. 03, 2003
Filed:
May. 17, 2000
Tokihiro Tsukamoto, Miyanohigashi-machi, JP;
Koichi Matsumoto, Miyanohigashi-machi, JP;
Shigeo Nakamura, Miyanohigashi-machi, JP;
Nobutaka Kihara, Miyanohigashi-machi, JP;
Horiba, Ltd, Miyanohigashi-Machi, JP;
Abstract
The present invention provides a method for easily measuring a brake mean effective pressure of a running vehicle. An air flow sensor, a &lgr; sensor and a data collecting apparatus are mounted to the vehicle. A running speed and engine speed from the vehicle while actually running on a road surface, and output of the air flow sensor an the &lgr; sensor are inputted to the data collecting apparatus. Specific fuel consumption is obtained from an intake air amount and ratio of excessive air in exhaust gas. Output of an engine is obtained from a relation between the specific fuel consumption and the engine speed.