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:
Aug. 10, 2010
Filed:
Dec. 02, 2005
Shingo Eguchi, Osaka, JP;
Shuji Shiozaki, Osaka, JP;
Takeshi Ouchida, Osaka, JP;
Takafumi Yamada, Osaka, JP;
Shigemi Hidaka, Osaka, JP;
Shingo Eguchi, Osaka, JP;
Shuji Shiozaki, Osaka, JP;
Takeshi Ouchida, Osaka, JP;
Takafumi Yamada, Osaka, JP;
Shigemi Hidaka, Osaka, JP;
Yanmar Co., Ltd., Osaka, JP;
Abstract
A control apparatus for a tractor or wheel loader includes a speed change sensor that detects the step-on amount of a speed change pedal, an actuator that regulates a swash plate angle of a hydraulic pump based on the detection value of the speed change sensor, a transmission output unit rotation sensor that detects the revolution speed of an output shalt, and a control unit. When the speed change pedal is not stepped on, a braking force is applied to travel wheels and both of a forward drive clutch and a reverse drive clutch are disengaged. When a transmission drive output detected with the transmission output unit rotation sensor is not more than a fixed forward or reverse drive switching speed, either the forward drive clutch or the reverse drive clutch is engaged as the speed change pedal is stepped on.