Valve fault detection
MA Younkins, SK Chen - US Patent 9,890,732, 2018 - Google Patents
Methods and systems are described for detecting valve actuation faults in internal
combustion engines operating in a skip fire operational mode. In one aspect, for each skip …
combustion engines operating in a skip fire operational mode. In one aspect, for each skip …
System and method for controlling engine torque while deactivating engine cylinders
JA Doering, JE Rollinger, K Willard… - US Patent 10,316,775, 2019 - Google Patents
Abstract Systems and methods for operating an engine with deactivating and non-
deactivating valves are presented. In one example, a position of one or more volumetric …
deactivating valves are presented. In one example, a position of one or more volumetric …
System and method for mitigating cylinder deactivation degradation
JE Rollinger, K Willard, JA Doering… - US Patent 11,480,120, 2022 - Google Patents
Abstract Systems and methods for operating an engine with deactivating and non-
deactivating valves are presented. In one example, valves of a cylinder are deactivated in a …
deactivating valves are presented. In one example, valves of a cylinder are deactivated in a …
System and method for controlling fuel for reactivating engine cylinders
AJ Richards, JE Rollinger - US Patent 10,337,444, 2019 - Google Patents
Abstract Systems and methods for operating an engine with deactivating and non-
deactivating valves are presented. In one example, fuel supplied to cylinders being …
deactivating valves are presented. In one example, fuel supplied to cylinders being …
Engine error detection system
SK Chen, M Nagashima, L Chien - US Patent 9,784,644, 2017 - Google Patents
(57) ABSTRACT A variety of methods and arrangements for detecting misfire and other
engine-related errors are described. In one aspect, a window is assigned to a target firing …
engine-related errors are described. In one aspect, a window is assigned to a target firing …
Active cylinder configuration for an engine including deactivating engine cylinders
AJ Richards, JE Rollinger - US Patent 10,371,070, 2019 - Google Patents
Abstract Systems and methods for operating an engine with deactivating and non-
deactivating valves are presented. A common engine block and cylinder head may be used …
deactivating valves are presented. A common engine block and cylinder head may be used …
System for method for controlling engine knock of a variable displacement engine
CP Glugla - US Patent 10,316,774, 2019 - Google Patents
Abstract Systems and methods for detecting and controlling knock in an engine are
presented. In one example, engine knock sensors are selected based on whether or not …
presented. In one example, engine knock sensors are selected based on whether or not …
Induction diagnostics for skip fire engine
SK Chen, AJ Kotwicki, RS Bailey… - US Patent …, 2017 - Google Patents
A variety of methods and arrangements for detecting failure of the commanded air induction
in an internal combustion engine are described. In some embodiments, the intake manifold …
in an internal combustion engine are described. In some embodiments, the intake manifold …
System and method for intake manifold pressure control
AJ Richards, JE Rollinger - US Patent 10,024,256, 2018 - Google Patents
Abstract Systems and methods for operating an engine with deactivating and non-
deactivating valves are presented. In one example, engine volumetric efficiency actuators …
deactivating valves are presented. In one example, engine volumetric efficiency actuators …
System and method for improving cylinder deactivation
CP Glugla - US Patent 10,711,715, 2020 - Google Patents
Abstract Systems and methods for operating an engine with deactivating and non-
deactivating valves are presented. In one example, estimates of engine fuel consumption for …
deactivating valves are presented. In one example, estimates of engine fuel consumption for …