ENGINE CONTROLLER AND SCREENING METHOD
PROBLEM TO BE SOLVED: To provide an engine controller and a screening method wherein a voltage switching command signal for screening is positively and reliably realized by a simple system without requiring an exclusive input terminal. SOLUTION: The engine controller 107 is provided with integrated...
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| creator | MIYASHITA KIMIO ONO KOICHI EBISAWA TAKAYUKI TANNO HEIKICHI NAKAZURU KUNIHITO |
| description | PROBLEM TO BE SOLVED: To provide an engine controller and a screening method wherein a voltage switching command signal for screening is positively and reliably realized by a simple system without requiring an exclusive input terminal. SOLUTION: The engine controller 107 is provided with integrated circuits 200, 112 and 113 inputted with various types of sensor signals via input terminals 20-0 to 20-n to carry out arithmetic processes necessary for control, and an output voltage regulating circuit 250 for selectively setting a rated voltage used in normal operation and a rated voltage for screening. When a predetermined signal level not used in the normal operation is inputted in one or more of the sensor signal input terminals 20-0 to 20-2 used in the normal operation, a CPU 200 issues a command to the output voltage regulating circuit 250 to switch to the rated voltage for screening. COPYRIGHT: (C)2004,JPO |
| format | Patent |
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SOLUTION: The engine controller 107 is provided with integrated circuits 200, 112 and 113 inputted with various types of sensor signals via input terminals 20-0 to 20-n to carry out arithmetic processes necessary for control, and an output voltage regulating circuit 250 for selectively setting a rated voltage used in normal operation and a rated voltage for screening. When a predetermined signal level not used in the normal operation is inputted in one or more of the sensor signal input terminals 20-0 to 20-2 used in the normal operation, a CPU 200 issues a command to the output voltage regulating circuit 250 to switch to the rated voltage for screening. 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SOLUTION: The engine controller 107 is provided with integrated circuits 200, 112 and 113 inputted with various types of sensor signals via input terminals 20-0 to 20-n to carry out arithmetic processes necessary for control, and an output voltage regulating circuit 250 for selectively setting a rated voltage used in normal operation and a rated voltage for screening. When a predetermined signal level not used in the normal operation is inputted in one or more of the sensor signal input terminals 20-0 to 20-2 used in the normal operation, a CPU 200 issues a command to the output voltage regulating circuit 250 to switch to the rated voltage for screening. COPYRIGHT: (C)2004,JPO</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MECHANICAL ENGINEERING PHYSICS TESTING WEAPONS |
| title | ENGINE CONTROLLER AND SCREENING METHOD |
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