| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable transmission and traveling by performing both main and auxiliary transmission operation, or by performing main transmission operation while fixing an auxiliary transmission 14. <P>SOLUTION: When a main and auxiliary transmission mode selection means 36 is operated, a transmission control means 27 is in a main and auxiliary transmission control mode to operate a main transmission motor 25 and an auxiliary transmission motor 26 based on information from a lever position detection means 37, so that a main transmission 10 and a hydraulic motor 14 as an auxiliary transmission are operated to be in a transmission state corresponding to an operation position of a main transmission lever 32. When auxiliary transmission means 33 to 35 are operated, the transmission control means is in an auxiliary transmission control mode to operate the main transmission motor 25 based on the information from the lever position detection means 37 for putting the main transmission 10 in a transmission state corresponding to an operation position of the main transmission lever 32, and the auxiliary transmission motor 26 is operated based on an auxiliary transmission command from the auxiliary transmission means 33 to 35 to put the hydraulic motor 14 in an auxiliary transmission state responding to the auxiliary transmission command. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
