304 patents
Utility
Systems and methods for skip-fire operation control
2 Jan 24
A method of controlling a skip-fire cylinder deactivation system of an engine system is provided.
J. Steven Kolhouse, Ross A. Phillips
Filed: 23 Sep 22
Utility
Systems and methods to minimize emissions spikes when reactivating or deactivating a combustion cylinder
2 Jan 24
Systems and methods for mitigating exhaust gas emissions via cylinder deactivation are provided.
J. Steven Kolhouse, Avra Brahma
Filed: 7 Nov 22
Utility
Systems and Methods for Particulate Filter Regeneration with Cylinder Deactivation
21 Dec 23
A system includes an exhaust aftertreatment system including a particulate filter and a controller.
J. Steven Kolhouse, David Langenderfer, David Schmidt, Vijay Srinivasan
Filed: 17 Jun 22
Utility
Non-rotating Cylinder Pattern Selection for Equalizing Cylinder Usage In an Internal Combustion Engine
7 Dec 23
A system and method for operating an ICE by (a) generating a running history of one or more-cylinder events per cylinder, and (b) using the running history to select a least-used non-rotating firing pattern, among a plurality of non-rotating firing patterns, provided for each firing fraction less than one (1).
Louis J. SERRANO, Xin YUAN, Shikui Kevin CHEN, Xi LUO, Robert C. WANG, Xiaoping CAI, Vijay SRINIVASAN
Filed: 2 Jun 22
Utility
Method for determining pilot injection mass
5 Dec 23
A variety of methods and arrangements are described for determining a pilot injection mass during skip fire operation of an internal combustion engine.
Benjamin Wolk, Justin Lee, Timothy Hayden Shipp
Filed: 19 Apr 22
Utility
Non-rotating cylinder pattern selection for equalizing cylinder usage in an internal combustion engine
21 Nov 23
A system and method for operating an ICE by (a) generating a running history of one or more-cylinder events per cylinder, and (b) using the running history to select a least-used non-rotating firing pattern, among a plurality of non-rotating firing patterns, provided for each firing fraction less than one (1).
Louis J. Serrano, Xin Yuan, Shikui Kevin Chen, Xi Luo, Robert C. Wang, Xiaoping Cai, Vijay Srinivasan
Filed: 2 Jun 22
Utility
Systems and methods for bypassing a compromised engine cylinder via cylinder deactivation
31 Oct 23
Systems and methods for bypassing a compromised engine cylinder via cylinder deactivation are described according to various embodiments herein.
Aaron William Beinborn, J. Steven Kolhouse, David J. Langenderfer, David Schmidt
Filed: 15 Nov 22
Utility
Dynamic skip fire transitions for fixed CDA engines
19 Sep 23
A variety of methods and arrangements are described for managing transitions between operational states of an internal combustion engine during skip fire operation of the engine.
Vijay Srinivasan
Filed: 11 May 22
Utility
Mitigation of Powertrain and Accessory Torsional Oscillation Through Electric Motor/generator Control
14 Sep 23
A variety of methods and arrangements for mitigating powertrain and accessory torsional oscillation through electric motor/generator control are described.
John W. PARSELS, Matthew A. YOUNKINS
Filed: 15 May 23
Utility
Brazing methods using porous interlayers and related articles
15 Aug 23
The disclosure relates to a brazing method for joining substrates, in particular where one of the substrates is difficult to wet with molten braze material.
Jason Dale Nicholas, Quan Zhou, Thomas Rector Bieler, Rick Daniel Kerr
Filed: 4 Nov 21
Utility
Using skip fire with power take-off
15 Aug 23
Engine controllers and control schemes that facilitate skip fire engine operation in conjunction with use power take-off devices are described.
J. Steven Kolhouse, Lisa A. Orth-Farrell, Steven E. Carlson, Aaron W. Beinborn
Filed: 10 Jul 20
Utility
Motor torque smoothing on combustion engines by approximating a periodic waveform using sinusoids
8 Aug 23
Methods, systems, and devices for operating an engine controller in a vehicle for managing motor torque smoothing.
Louis Joseph Serrano, Vijay Srinivasan
Filed: 19 Jul 22
Utility
Method for determining pilot injection mass
1 Aug 23
A variety of methods and arrangements are described for determining a pilot injection mass during skip fire operation of an internal combustion engine.
Benjamin Wolk, Justin Lee, Timothy Hayden Shipp
Filed: 19 Aug 21
Utility
Managing Engine Firing Fraction Changes During Gear Shifts
20 Jul 23
Methods and controllers for controlling engine speed to reduce NVH that occurs in conjunction with transmission shifts are described.
Louis J. SERRANO, Xiaoping CAI, Andrew W. PHILLIPS
Filed: 14 Jan 22
Utility
Exhaust Valve Failure Diagnostics and Management
13 Jul 23
A method of operating an engine is provided.
Robert C. WANG, Louis J. SERRANO, Shikui Kevin CHEN
Filed: 8 Mar 23
Utility
Systems and Methods for Coordination of Skip-fire and Aftertreatment Heater Operation to Maintain Exhaust Gas Temperature
29 Jun 23
A system includes an aftertreatment system heater of an exhaust aftertreatment system coupled to an engine A controller coupled to the aftertreatment system heater is configured to determine a condition of an exhaust gas from an engine and compare the condition to a predefined threshold.
Jennifer Kay Light-Holets, J. Steven Kolhouse, Christopher R. Nelson, Anant Puri, Xiaobo Song, Avra Brahma
Filed: 27 May 20
Utility
Managing engine firing fraction changes during gear shifts
27 Jun 23
Methods and controllers for controlling engine speed to reduce NVH that occurs in conjunction with transmission shifts are described.
Louis J. Serrano, Xiaoping Cai, Andrew W. Phillips
Filed: 14 Jan 22
Utility
Fast torque response for boosted engines
25 Apr 23
Engine controllers and control schemes are provided for managing engine state transitions requiring increased compressor pressure ratios in turbocharged engines.
Elliott A. Ortiz-Soto, Shahaboddin Owlia
Filed: 5 Jan 22
Utility
Diagnostic system and method for detecting internal combustion engine faults using exhaust pressure readings
25 Apr 23
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.
Shikui Kevin Chen
Filed: 11 Jul 22
Utility
Classifier for Valve Fault Detection In a Variable Displacement Internal Combustion Engine
13 Apr 23
A classifier capable of predicting if cylinder valves of an engine commanded to activate or deactivate failed to activate or deactivate respectively.
Louis J. SERRANO, Elliott A. ORTIZ-SOTO, Shikui Kevin CHEN, Li-Chun CHIEN, Aditya MANDAL
Filed: 8 Jul 22