LPG Injector device for measuring the performance of gasoline and LPG engines with a current sensor

摘要

This design senses the voltage and current value when driving the injector and displays it on the LCD so that the mechanic can quickly and accurately determine the state of the injector, thereby reducing the burden on the consumer due to the unconditional exchange of the injector, And to increase maintenance efficiency. In addition, the PCB is designed to be portable easily. A microcomputer is located at a central portion of the apparatus, an injector driving portion is disposed at an upper portion of the apparatus, a sensing portion for measuring a voltage and a current at the time of driving the injector driving circuit is provided, and a lower portion of the microcomputer includes a setting portion have. This setting section consists of injector drive time setting, injector injection time setting, injector injection RPM setting, and mode part. When the setting by the mode unit is completed, the microcomputer outputs a signal to the driving drive unit according to an interwoven algorithm and displays this value on the LCD provided on the upper side of the micom. The drive unit drives the injector, and the change in driving the injector inputs the ADC value to the microcomputer. The microcomputer converts the ADC value into voltage and current values and displays it on the LCD. If the measured value is bad, the microcomputer displays "The End" on line 1 and "GOOD" on line 2 if the measured value is bad. If the injector has poor performance, display "The End" on line 1 of the LCD and "Defect" on line 2.