Method and apparatus for determining optimum skip fire firing profile
MA Shost, LJ Serrano, SE Carlson… - US Patent …, 2019 - Google Patents
In one aspect, a skip fire engine controller is described. The skip fire engine controller
includes a skip fire module arranged to determine an operational firing fraction and …
includes a skip fire module arranged to determine an operational firing fraction and …
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 …
Lean burn internal combustion engine exhaust gas temperature control
MA Younkins, SK Chen, MA Wilcutts - US Patent 10,247,072, 2019 - Google Patents
8, 886, 422 B2 11/2014 Sujan et al. 8, 892, 330 B2 11/2014 Yuille et al. 8, 931, 255 B2
1/2015 Wilson 9, 086, 020 B2 7/2015 Pirjaberi et al. 9, 267, 454 B2 2/2016 Wilcutts et al. 9 …
1/2015 Wilson 9, 086, 020 B2 7/2015 Pirjaberi et al. 9, 267, 454 B2 2/2016 Wilcutts et al. 9 …
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 …
Multi-level skip fire
MA Younkins, LJ Serrano - US Patent 9,689,327, 2017 - Google Patents
Related US Application Data is a continuation of application No. 14/188.479, filed on Feb.
24, 2014, now Pat. No. 9,086,024, which is a continuation of application No. 13/004,844 …
24, 2014, now Pat. No. 9,086,024, which is a continuation of application No. 13/004,844 …
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 …
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 …
Internal combustion engine control for improved fuel efficiency
AS Tripathi - US Patent 10,273,894, 2019 - Google Patents
Jun. 3, 2015, now Pat. No. 9, 541, 050, which is a continuation of application No. 14/188,
479, filed on Feb. 24, 2014, now Pat. No. 9, 086, 024, which is a continuation of application …
479, filed on Feb. 24, 2014, now Pat. No. 9, 086, 024, which is a continuation of application …
System and method for improving fuel economy for autonomous driving vehicles
CAO Yongyan, Y Ren, LJ Serrano, RS Bailey… - US Patent …, 2019 - Google Patents
The present invention relates generally to improving the fuel efficiency of autonomous
vehicles by operating either (1) at a first effective engine displacement that takes into …
vehicles by operating either (1) at a first effective engine displacement that takes into …