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 …
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 …
Lean burn internal combustion engine exhaust gas temperature control
MA Younkins, SK Chen, MA Wilcutts - US Patent 10,494,971, 2019 - Google Patents
A variety of methods and arrangements for controlling the exhaust gas temperature of a lean
burn, skip fire controlled internal combustion engine are described. In one aspect, an engine …
burn, skip fire controlled internal combustion engine are described. In one aspect, an engine …
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 …
Determining firing density of a skip fire controlled lean-burn engine using air-fuel ratio and exhaust temperatures
SK Chen, MA Younkins - US Patent 10,823,029, 2020 - Google Patents
A skip fire control that relies on a combination of a torque request, exhaust temperature, and
air-fuel ratio in determining firing density is described. Also, skipped firing opportunities may …
air-fuel ratio in determining firing density is described. Also, skipped firing opportunities may …
Noise, vibration and harshness reduction in a skip fire engine control system
LJ Serrano, X Yuan, JW Parsels, MR Pirjaberi… - US Patent …, 2019 - Google Patents
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 …
Engine torque smoothing
MR Pirjaberi, K Eisazadeh-far, SE Carlson… - US Patent …, 2020 - 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 charge compression ignition engine with multiple aftertreatment systems
EA Ortiz-Soto, MA Younkins - US Patent 10,808,672, 2020 - Google Patents
Methods, devices, controllers, and algorithms are described for operating an internal
combustion engine wherein at least some firing opportunities utilize low temperature …
combustion engine wherein at least some firing opportunities utilize low temperature …