METHOD AND ENGINE CONTROLLER FOR DIAGNOSING WASTE GATE VALVE MALFUNCTION AND RELATED POWER GENERATION SYSTEM

摘要

A method for diagnosing a waste gate valve malfunction in a power generation system is presented. The method includes determining an actual pressure differential across a throttle valve. The method further includes determining an estimated pressure differential across the throttle valve based on one or more first operating parameters of the power generation system. Furthermore, the method includes determining an absolute difference between the actual pressure differential and the estimated pressure differential. Moreover, the method also includes comparing the absolute difference with a threshold value and if the absolute difference is greater than the threshold value, determining an operating condition of the throttle valve. Additionally, the method includes determining whether the waste gate valve has malfunctioned based on the determined operating condition of the throttle valve. An engine controller and a power generation system employing the method are also presented.

主权项

1. A method for diagnosing a waste gate valve malfunction in a power generation system, comprising:
(i) determining an actual pressure differential across a throttle valve; (ii) determining an estimated pressure differential across the throttle valve based on one or more first operating parameters of the power generation system; (iii) determining an absolute difference between the actual pressure differential and the estimated pressure differential; and (iv) comparing the absolute difference between the actual pressure differential and the estimated pressure differential with a threshold value, and, if the absolute difference between the actual pressure differential and the estimated pressure differential is greater than the threshold value,
(a) determining an operating condition of the throttle valve; and(b) determining whether the waste gate valve has malfunctioned based on the determined operating condition of the throttle valve.