WORK VEHICLE, CONTROLLER FOR WORK VEHICLE, AND SPEED CONTROL METHOD FOR WORK VEHICLE
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United States of America Patent
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Issued Date -
Jan 23, 2025
app pub date -
Jul 16, 2024
filing date -
Jul 16, 2024
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status (Latency Note)
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Abstract
A work vehicle includes a human-machine interface configured to receive an input corresponding to a target rotation speed of a hydraulic motor. A rotation speed sensor is configured to detect a rotation speed of the hydraulic motor. A hydraulic control circuit is configured to control a hydraulic pressure of pilot oil to change a displacement volume of the hydraulic pump. Circuitry is configured to control a prime mover and the hydraulic control circuit. The circuitry is configured to obtain based on the target rotation speed, a reference value of a control parameter according to which the hydraulic control circuit is controlled, calculate a speed difference obtained by subtracting the target rotation speed from the rotation speed, calculate an offset value corresponding to the speed difference, and set the control parameter to a value obtained by adding the offset value to the reference value.
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