Exhaust treatment diagnostic system and method
Patent 8161808 Issued on April 24, 2012. Estimated Expiration Date: 
February 24, 2029. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 24, 2029. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.InventorsAssigneeApplicationNo. 12391626 filed on 02/24/2009US Class:73/114.75ExaminersPrimary: McCall, Eric SForeign Patent References
International ClassG01M 15/10AbstractA method and system for monitoring operation of an exhaust treatment system of a diesel engine includes a dosing system including an injector for injecting an injection fluid and a pump for pressurizing the injection fluid. The system also includes a pressure sensor in communication with the dosing system generating a pressure signal. The system further includes a control module that determines a pressure error signal in response to the pressure signal and generates a fault signal in response.Field of Search73/114.7673/114.75 73/114.71 73/114.69 | |
