66results about How to "Operation is not complicated" patented technology

The invention discloses a failure monitoring system of an engine intake electronic decompression valve. The system comprises an engine controller, a boost pressure sensor, an atmospheric pressure sensor, an intake pressure sensor and the electronic decompression valve. An engine controller operation detection method comprises the steps of first, judging whether hardware of an engine is in the detectable working condition or not, and entering the second step if yes; second, carrying out first-order low-pass filtering processing on the actual boost pressure signals to obtain the boost pressure signal difference; third, carrying out self summation on the boost pressure signal difference within time t to obtain the total value of the boost pressure signal difference; fourth, judging whether the summation time is larger than the calibration value or not, returning to the third step if not, and entering the fifth step if yes; fifth, judging whether the total value of the boost pressure signal difference is larger than the calibration value or not, returning the failure number to zero and entering the first step if not, and entering the sixth step if yes; and sixth, accumulating the failure number and judging whether the failure number is larger than the calibration value, if not, determining that the electronic decompression valve is normal, and if yes, determining that the electronic decompression valve fails, and entering the first step.