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:
Nov. 13, 2007
Filed:
May. 26, 2004
Hiroyuki Yamaguchi, Seto, JP;
Hiroyuki Nishizawa, Tajimi, JP;
Hideyuki Suzuki, Nisshin, JP;
Masataka Osawa, Nagoya, JP;
Kunihiro Iwatsuki, Toyota, JP;
Hiroyuki Yamaguchi, Seto, JP;
Hiroyuki Nishizawa, Tajimi, JP;
Hideyuki Suzuki, Nisshin, JP;
Masataka Osawa, Nagoya, JP;
Kunihiro Iwatsuki, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A belt clamping pressure setting device includes: a belt clamping pressure setting unit that sets a belt clamping pressure of a continuously variable transmission that includes an input-side pulley, an output-side pulley, and a belt running between the input-side pulley and the out-side pulley; an input revolution detection sensor that detects a number of input revolutions of the input-side pulley; an output revolution detection sensor that detects a number of output revolutions of the output-side pulley; an input torque detection unit that detects an input torque to the input-side pulley; a reference clamping pressure computing unit that computes a reference clamping pressure, based on the number of input revolutions detected by the input revolution detection sensor, the number of output revolutions detected by the output revolution detection sensor, and the input torque detected by the input torque detection unit; and a belt clamping pressure computing unit that computes the belt clamping pressure to be set by the belt clamping pressure setting unit based on the reference clamping pressure and a correction value computed in accordance with the number of input revolutions detected by the input revolution detection sensor or a torque fluctuation frequency obtained from the number of input revolutions.