Dump truck
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United States of America Patent
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Sep 19, 2023
Grant Date -
N/A
app pub date -
Sep 15, 2020
filing date -
Sep 24, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a dump truck capable of performing an actuation test of an emergency brake system at an appropriate timing. The dump truck comprises: front wheel and rear wheel emergency brake systems, each system including an accumulator that accumulates hydraulic oil supplied from a hydraulic pump, a brake device that is actuated by the hydraulic oil supplied from the accumulator, and a solenoid valve that opens and closes a flow path of the hydraulic oil extending from the accumulator to the brake device; and a controller configured to execute front test processing and rear test processing alternately (step S16/step S18) in the case of determining that the dump truck is stopped (step S11: Yes), a vessel is in a fallen position (step S12: YES), and a loading operation onto the vessel is completed (step S15: Yes/step S17: Yes).
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