Shikui Chen from Leander, TX

Diagnostic System And Method For Detecting Internal Combustion Engine Faults Using Exhaust Pressure Readings
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US Patent:

20220341819, Oct 27, 2022
Filed:

Jul 11, 2022
Appl. No.:

17/862143
Inventors:

- San Jose CA, US
- Columbus IN, US
Shikui Kevin CHEN - Leander TX, US
International Classification:

G01M 15/10
F02D 17/02
Abstract:

A diagnostic system and method that (a) that uses models indicative of both successful firing and skips to determine if cylinders of a skip fire controlled internal combustion engine have successfully fired or successfully skipped and (b) uses filtered exhaust gas pressure readings for detecting faults associated with EGR systems and/or turbocharger systems.

Classifier For Valve Fault Detection In A Variable Displacement Internal Combustion Engine
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US Patent:

20230115272, Apr 13, 2023
Filed:

Jul 8, 2022
Appl. No.:

17/860838
Inventors:

- San Jose CA, US
Elliott A. ORTIZ-SOTO - San Jose CA, US
Shikui Kevin CHEN - Leander TX, US
Li-Chun CHIEN - Milpitas CA, US
Aditya MANDAL - San Jose CA, US
International Classification:

F02D 41/22
F01L 13/00
F02D 41/00
G01M 15/11
G01M 15/05
G05B 13/02
Abstract:

A classifier capable of predicting if cylinder valves of an engine commanded to activate or deactivate failed to activate or deactivate respectively. In various embodiments, the classifier can be binary or multi-class Logistic Regression, or a Multi-Layer Perceptron (MLP) classifier. The variable displacement engine can operate in cooperation with a variable displacement engine using cylinder deactivation (CDA) or skip fire, including dynamic skip fire and/or multi-level skip fire.

Shikui Chen