Inventor
BEIKMANN RANDALL S
US14 patents
⚠️ This page may combine multiple inventors who share the name “BEIKMANN RANDALL S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GM GLOBAL TECH OPERATIONS LLC
7 patentsUS9458778B2Oct 4, 2016
Cylinder activation and deactivation control systems and methods
GM GLOBAL TECH OPERATIONS LLC8 citations84
US9726139B2Aug 8, 2017
System and method for controlling a firing sequence of an engine to reduce vibration when cylinders of the engine are deactivated
GM GLOBAL TECH OPERATIONS LLC6 citations83
US9458780B2Oct 4, 2016
Systems and methods for controlling cylinder deactivation periods and patterns
GM GLOBAL TECH OPERATIONS LLC9 citations83
US9416743B2Aug 16, 2016
Cylinder activation/deactivation sequence control systems and methods
GM GLOBAL TECH OPERATIONS LLC7 citations83
US9556811B2Jan 31, 2017
Firing pattern management for improved transient vibration in variable cylinder deactivation mode
GM GLOBAL TECH OPERATIONS LLC2 citations70
US9599047B2Mar 21, 2017
Combination cylinder state and transmission gear control systems and methods
GM GLOBAL TECH OPERATIONS LLC1 citations49
US9828921B2Nov 28, 2017
External vehicle sound field enhancement
GM GLOBAL TECH OPERATIONS LLC0 citations46
GM GLOBAL TECH OPERATIONS INC
3 patentsUS9140622B2Sep 22, 2015
System and method for controlling a firing sequence of an engine to reduce vibration when cylinders of the engine are deactivated
GM GLOBAL TECH OPERATIONS INC24 citations91
US7219642B1May 22, 2007
Powertrain assembly and integral truss oil pan therefor
GM GLOBAL TECH OPERATIONS INC15 citations78
US9239024B2Jan 19, 2016
Recursive firing pattern algorithm for variable cylinder deactivation in transient operation
GM GLOBAL TECH OPERATIONS INC5 citations72