PROBLEM TO BE SOLVED: To provide a working vehicle capable of immediately changing the shift upper limit of a transmission to a predetermined speed step which is upper at multiple steps.SOLUTION: A working vehicle comprises an operation apparatus, a transmission having a plurality of speed steps, and a controller controlling to shift a speed step of the transmission to a shift upper limit or lower step on the basis of vehicle speed of the working vehicle. The controller sets the operation apparatus to change the switch upper limit to one upper step on the basis of execution of a first operation. The controller controls the operation apparatus to change the switch upper limit from a first switch upper limit just before execution of a second operation to a second switch upper limit on the basis of execution of the second operation different from the first operation. The second switch upper limit is upper at least two steps rather than the first switch upper limit.SELECTED DRAWING: Figure 6
【課題】変速機の切替上限段を速やかに複数段上の所定の速度段まで上げることが可能な作業車両を提供する。【解決手段】作業車両は、操作装置と、複数の速度段を有する変速機と、作業車両の車速に基づいて変速機の速度段を切替上限段以下に切り替える制御を行うコントローラとを備える。コントローラは、操作装置に対して、第1の操作が行われたことに基づき、切替上限段を1段上げる設定を行う。コントローラは、操作装置に対して第1の操作とは異なる第2の操作が行われたことに基づき、切替上限段を、第2の操作が行われる直前の第1の切替上限段から、第2の切替上限段に変更する制御を行う。第2の切替上限段は、第1の切替上限段よりも少なくとも2段以上高い。【選択図】図6
WORKING VEHICLE AND CONTROLLING METHOD
作業車両および制御方法
2018-09-20
Patent
Electronic Resource
Japanese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / E02F Baggern , DREDGING / G05G CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY , Steuer- oder Regelvorrichtungen oder Steuer- oder Regelsysteme gekennzeichnet ausschließlich durch mechanische Einzelheiten |
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