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OPEN LOOP MACHINE MOTOR SPEED CONTROL BASED ON DOWNHILL SLOPE DETERMINATION
A manner of managing operation of a machine (100) is described for preventing damage/wear to movable machine components arising from operation of the machine/parts at excessive speed while the machine (100) is traveling down a steep incline. The managing of the machine operation includes determining a downhill slope value (THETA) in a machine direction of travel and then establishing a maximum commanded transmission output speed (max commanded motor speed) in accordance with the determined downhill slope value (THETA). Thereafter a maximum commanded gear ratio is established, for a transmission having a variable gear ratio, based upon the maximum commanded transmission output speed (max commanded motor speed) and a current engine speed. A controller compares the maximum commanded variable gear ratio to an operator requested gear ratio, and a target gear ratio is established for the variable gear ratio of the transmission based upon a minimum of the compared commanded variable gear ratio and the operator requested gear ratio.
OPEN LOOP MACHINE MOTOR SPEED CONTROL BASED ON DOWNHILL SLOPE DETERMINATION
A manner of managing operation of a machine (100) is described for preventing damage/wear to movable machine components arising from operation of the machine/parts at excessive speed while the machine (100) is traveling down a steep incline. The managing of the machine operation includes determining a downhill slope value (THETA) in a machine direction of travel and then establishing a maximum commanded transmission output speed (max commanded motor speed) in accordance with the determined downhill slope value (THETA). Thereafter a maximum commanded gear ratio is established, for a transmission having a variable gear ratio, based upon the maximum commanded transmission output speed (max commanded motor speed) and a current engine speed. A controller compares the maximum commanded variable gear ratio to an operator requested gear ratio, and a target gear ratio is established for the variable gear ratio of the transmission based upon a minimum of the compared commanded variable gear ratio and the operator requested gear ratio.
OPEN LOOP MACHINE MOTOR SPEED CONTROL BASED ON DOWNHILL SLOPE DETERMINATION
ELLIOTT CHRISTOPHER (author)
2015-09-23
Patent
Electronic Resource
English
IPC:
E02F
Baggern
,
DREDGING
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