Inventor
SPITZA JR ALFRED E
US11 patents
⚠️ This page may combine multiple inventors who share the name “SPITZA JR ALFRED E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GEN MOTORS CORP
5 patentsUS6704638B2Mar 9, 2004
Torque estimator for engine RPM and torque control
GEN MOTORS CORP155 citations96
US6957140B1Oct 18, 2005
Learned airflow variation
GEN MOTORS CORP19 citations91
US6763297B1Jul 13, 2004
Displacement on demand spark knock detection
GEN MOTORS CORP24 citations86
US6843229B2Jan 18, 2005
Displacement on demand fault indication
GEN MOTORS CORP12 citations84
US6739314B1May 25, 2004
Displacement on demand with throttle preload security methodology
GEN MOTORS CORP16 citations84
GM GLOBAL TECH OPERATIONS INC
4 patentsUS7278391B1Oct 9, 2007
Cylinder deactivation torque limit for noise, vibration, and harshness
GM GLOBAL TECH OPERATIONS INC57 citations94
US7198029B1Apr 3, 2007
Extension of DOD operation in torque control system
GM GLOBAL TECH OPERATIONS INC22 citations92
US7621252B2Nov 24, 2009
Method to optimize fuel economy by preventing cylinder deactivation busyness
GM GLOBAL TECH OPERATIONS INC3 citations59
US9074537B2Jul 7, 2015
Adaptive engine speed control to prevent engine from roll and stall
GM GLOBAL TECH OPERATIONS INC2 citations57