Adaptive torque mitigation by micro-hybrid system
M Nagashima, MR Pirjaberi, LJ Serrano… - US Patent …, 2019 - Google Patents
A variety of methods and arrangements for reducing noise, vibration and harshness (NVH)
in a skip fire engine control system are described. In one aspect, a firing sequence is used to …
in a skip fire engine control system are described. In one aspect, a firing sequence is used to …
Engine torque smoothing
MR Pirjaberi, K Eisazadeh-far, SE Carlson… - US Patent …, 2018 - Google Patents
Methods, devices, estimators, controllers and algorithms are described for estimating the
torque profile of an engine and/or for controlling torque applied to a powertrain by one or …
torque profile of an engine and/or for controlling torque applied to a powertrain by one or …
Engine torque smoothing
MR Pirjaberi, K Eisazadeh-far, SE Carlson… - US Patent …, 2019 - Google Patents
Primary Examiner-Thomas Moulis (74) Attorney, Agent, or Firm—Beyer Law Group LLP (57)
ABSTRACT Methods, devices, estimators, controllers and algorithms are described for …
ABSTRACT Methods, devices, estimators, controllers and algorithms are described for …
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 …
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 …
Adaptive torque mitigation by micro-hybrid system
M Nagashima, MR Pirjaberi, LJ Serrano… - US Patent …, 2020 - Google Patents
(57) ABSTRACT A variety of methods and arrangements for reducing noise, vibration and
harshness (NVH) in a skip fire engine control system are described. In one aspect, a firing …
harshness (NVH) in a skip fire engine control system are described. In one aspect, a firing …
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 …
Engine torque smoothing
MR Pirjaberi, K Eisazadeh-far, SE Carlson… - US Patent …, 2019 - Google Patents
Methods, devices, estimators, controllers and algorithms are described for estimating the
torque profile of an engine and/or for controlling torque applied to a powertrain by one or …
torque profile of an engine and/or for controlling torque applied to a powertrain by one or …
Dynamic valve control in a skip fire controlled engine
JF Fuschetto, MA Younkins, IS Soliman… - US Patent …, 2020 - Google Patents
Various methods and arrangements for improving fuel economy and noise, vibration, and
harshness (NVH) in a skip fire controlled engine are described. An engine control ler …
harshness (NVH) in a skip fire controlled engine are described. An engine control ler …
System and method for safe valve activation in a dynamic skip firing engine
JW Parsels, MA Younkins, SK Chen - US Patent 9,650,923, 2017 - Google Patents
A variety of methods and devices for controlling the operation of the intake and exhaust
valves in an internal combustion engine during skip fire operation are described. In various …
valves in an internal combustion engine during skip fire operation are described. In various …