Speed Control Structure and Method for Work Vehicle
AssigneeKubota Corporation
InventorsEiji Nishi, Atsushi Shinkai, Keishiro Nishi, Yasunobu Nakatani
Life of this patent
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Abstract
A load control system for a work vehicle including set rotation speed detection means for detecting a set rotation speed of an engine of the work vehicle, actual rotation speed detection means that senses an actual rotation speed of the engine, a continuously variable speed change device that receives power from the engine of the work vehicle, speed change position detecting means for detecting a speed change operating position of the continuously variable speed change device, operating means for speed-shifting the continuously variable speed change device, and control means for controlling the operation of the operating means.
Claims6
1-3. (canceled)
A work vehicle comprising:
- an engine;
- a continuously variable speed change device receiving power from the engine;
- wheels driven under the power from the continuously variable speed change device;
- a speed change position sensor detecting a speed change position of the continuously variable speed change device;
- a speed change operating device setting the speed change position to be requested to the continuously variable speed change device;
- an operation position sensor detecting an operation position of the speed change operating device;
- a control device configured to determine a target operation position of the continuously variable speed change device based on a speed change position detection signal from the speed change position sensor, and to output a control signal for correlating the determined target operation position with a current operation position calculated based on the speed change position detection signal from the operation position sensor;
- and
- a display device connected to the control device,
- wherein a current position image is displayed on the display device, the current position image indicating the current operation position in accordance with a movement of the speed change operating device.
Dependencies are inferred from the claim text.