KR920021979A - Operation monitoring device and control method of diesel engine - Google Patents

Abstract

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Description

Operation monitoring device and control method of diesel engine

Since this is an open matter, no full text was included.

1 is an implementation circuit diagram of a driving monitoring apparatus according to the present invention,

2 is a flowchart of an initialization routine showing an operating state according to the present invention;

3 is a flowchart of an interrupt routine that is performed at regular intervals according to the present invention;

4 is a main flowchart showing an operation control method according to the present invention.

Claims (5)

A sensor unit 28 including a rotation sensor, a temperature sensor, and a pressure sensor, and an operation switch unit 29 for setting the conditions of each sensor in the sensor unit 28 and each detected by the sensor unit 28. In a circuit composed of a microprocessor unit (7) for comparing the sensing value of and the value set by the operation switch unit (29), outputting data on the operating state and time of the engine detected by the microprocessor unit (7). Display means consisting of a display device connected via the indicator drive circuit (8), and the solenoid (23) to which a duplicated signal is applied through the power amplifier (10) in the abnormal state of the engine in the microprocessor unit (7). And an engine stop means configured to include a buzzer 24, a nonvolatile memory 11 which allows the microprocessor unit 7 to store an operating time of the engine at a predetermined time, and the indicator. Donghoe to 8 and a microprocessor unit (7) independently monitor the operation of the power supply circuit 30, the diesel engine was provided with a for supplying power to the device, The power supply circuit 30 according to claim 1, wherein the power supply circuit 30 for supplying the independent power supply includes: a first power supply of the DC power supply 26 to the first constant voltage circuit 12 through the diodes 14 and 15; And a second passage through which a direct current power source (26) is supplied to the second constant voltage circuit (13) via a diode (16), and a driving detection device for a diesel engine. Determines whether the function switch is selected or not, and displays the rotation speed, local time display result time, operation time display, etc., and selects the function to set the current time and reset the elapsed timer depending on whether the setting switch is set. And an engine speed determination routine (RT5) obtained by reading the setting judgment routine (RT4), the rotation pulse of the rotation sensor and the reference pulse inside the microprocessor unit 7, and calculating the engine speed by the engine speed. And an engine speed determination routine (RT6) for outputting a warning signal by making a dangerous rotation speed and a speed determination based on the engine speed value obtained in the engine speed determination routine (RT5), and in the engine speed determination routine (RT6). The engine fault condition processing routine (RT7) which detects whether the engine is overspeed and whether the temperature sensor or the pressure sensor is abnormal and stops the engine when an abnormal condition occurs, and monitors the diesel engine. Control method. 4. The engine speed determination routine RT6 includes: a dangerous rotation speed determination step 64 and a duration determination step 66, which are performed after the speeding display step 63 is performed, and the dangerous rotation speed determination step. At the speed of dangerous rotation at 64, an alarm output step 65 for generating an error signal at the display device 9 and an alarm signal at the buzzer 24, and at the speed determination at the speed determination step 64. And a warning output step (67) for outputting a warning signal to the buzzer (65). 4. The engine abnormality condition processing routine (RT7) according to claim 3 is performed during normal operation of the engine in the engine overheat and lubrication fault determination step 70 detected by the sensor and the engine overheat and lubrication fault determination step 70. The time display flag judgment step 75, the current time and elapsed time calculation step 77, the operation for which the non-volatile memory 11 is over a fixed time, the overspeed time recording step 78, the engine overheating and A warning output step 71 for outputting a warning signal and an error display signal when an abnormal condition of the engine occurs in the lubrication abnormality determination step 70 and an engine stop output step 73 for outputting an engine stop signal after a predetermined time after the warning output; And an engine stop step (74) for checking whether the engine is stopped when the engine is stopped. ※ Note: This is to be disclosed by the original application.