Method for testing a NOx sensor

• Main Authors: JOYNER, TAYLOR W, BELL, JOSEPH A
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2017
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

A method for testing a sensor positioned downstream of an engine. The method includes motoring the engine, receiving a signal indicative of a value from the sensor, and determining whether the value is inside or outside of an established range. The established range is based on a known characteristic of an exhaust gas exiting from the engine as it is motoring. 种用于测试定位在发动机的下游的NO传感器的方法。所述方法包括：启动发动机；接收表示来自NO传感器的值的信号；以及确定所述值位于已确定的范围之内还是之外。所述已确定的范围基于从正启动的发动机中排出的废气的已知特征。