公开(公告)号：US11448152B2

公开(公告)日：2022-09-20

申请号：US17176706

申请日：2021-02-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lei Li ,  Terry W. Ostan ,  Joseph K. Moore ,  Chong Keong Tang ,  Gregory A. Piper

IPC: F02D41/22 ,  B60Q9/00 ,  G07C5/08 ,  F02M35/024

Abstract: A method for diagnosing an air filter status includes receiving, by a controller, sensor data indicative of a mass air flow rate, an air temperature and an air pressure of an air cleaner assembly including an air filter, determining an air filter life remaining from the sensor data, and receiving data indicative of a vehicle condition. The method also includes determining when a first condition is satisfied and when true, triggering an air filter leakage alert. When the first condition is not satisfied, the controller determines when a second condition is satisfied. When the second condition is satisfied, the controller determines when a third condition is satisfied, and when the third condition is satisfied, triggers an air filter snow intrusion alert. When the second condition is satisfied and the third condition is not satisfied the controller triggers an air filter blockage alert.

公开(公告)号：US20220260031A1

公开(公告)日：2022-08-18

申请号：US17176706

申请日：2021-02-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lei Li ,  Terry W. Ostan ,  Joseph K. Moore ,  Chong Keong Tang ,  Gregory A. Piper

IPC: F02D41/22 ,  B60Q9/00 ,  G07C5/08 ,  F02M35/024

Abstract: A method for diagnosing an air filter status includes receiving, by a controller, sensor data indicative of a mass air flow rate, an air temperature and an air pressure of an air cleaner assembly including an air filter, determining an air filter life remaining from the sensor data, and receiving data indicative of a vehicle condition. The method also includes determining when a first condition is satisfied and when true, triggering an air filter leakage alert. When the first condition is not satisfied, the controller determines when a second condition is satisfied. When the second condition is satisfied, the controller determines when a third condition is satisfied, and when the third condition is satisfied, triggers an air filter snow intrusion alert. When the second condition is satisfied and the third condition is not satisfied the controller triggers an air filter blockage alert.