There are five categories of patents.
The first category, Core DSF, covers primarily determining the density and sequence of combustion events. The second category, Vehicle Integration, covers primarily the impact on other vehicle systems of DSF operation and vice versa. The third category, Alternative Engines, covers primarily engines using a working cycle other than an Otto cycle, and powertrains with auxiliary power sources. This category includes Diesel engines, hybrid powertrains, and engines with
multiple firing levels. The fourth category, Diagnostics, covers primarily systems and methods for determining faults, generally those related to DSF operation.
The fifth category, DMD, covers primarily the application of Tula’s pulse density controls approach to electric motor systems.
This web page is provided to address the virtual patent marking provisions of various jurisdictions. Additional patents are pending, both in the United States, China, Germany, Japan, South Korea, India, Europe, and Brazil.
Core DSF
Patent Titles |
Patent Number |
internal combustion engine control for improved efficiency | US7577511 |
internal combustion engine control for improved efficiency | US7849835 |
internal combustion engine control for improved efficiency | US7886715 |
internal combustion engine control for improved efficiency | US7954474 |
internal combustion engine control for improved efficiency | US8099224 |
internal combustion engine control for improved efficiency | US8131447 |
skip fire engine control | US8499743 |
internal combustion engine control for improved efficiency | US8616181 |
internal combustion engine control for improved efficiency | US8701628 |
Vehicle Integration
Patent Titles |
Patent Number |
system and methods for improving efficiency in internal combustion engines | US8402942 |
skip fire engine control | US8511281 |
skip fire engine control | US8651091 |
drive train slip for vibration mitigation during skip fire operation | US9267454 |
control of manifold vacuum in skip fire operation | US9273643 |
Cylinder re-activation fueling control systems and methods | US9429081 |
averaging filter for skip fire engine operation | US9494088 |
internal combustion engine control for improved fuel efficiency | US9541050 |
using cylinder firing history for combustion control in a skip fire engine | US9664130 |
Alternative Engine
Patent Titles |
Patent Number |
hybrid vehicle with cylinder deactivation | US8464690 |
system and methods for stoichiometric compression ignition engine control | US8646435 |
hybrid powertrain control | US8880258 |
hybrid vehicle with cylinder deactivation | US8892330 |
noise, vibration and harshness reduction in a skip fire engine control system | US9512794 |
multi-level skip fire | US9689328 |
engine torque smoothing | US10060368 |
multi-level skip fire | US10072592 |
deceleration cylinder cut-off in a hybrid vehicle | US10167799 |
Diagnostics
Patent Titles |
Patent Number |
system and method for safe valve activation in a dynamic skip firing engine | US9175613 |
misfire detection system | US9399963 |
valve fault detection | US9562470 |
determination of a high pressure exhaust spring in a cylinder of an internal combustion engine | US9581097 |
engine diagnostics with skip fire control | US9581098 |
system and method for safe valve activation in a dynamic skip firing engine | US9650923 |
misfire detection in a dynamic skip fire engine | US9784644 |
induction diagnostics for skip fire engine | US9835522 |
valve fault detection | US9890732 |
DMD
Patent Titles |
Patent Number |
Pulsed Electric Motor Control | US10742155 |
Boosted converted for pulsed electric machine control | US10944352 |
pulsed electric machine control for reducing nvh | US11077759 |
Pulsed Electric Motor Control | US11088644 |
magnetically de-coupled, separately controlled, mutiple electric machine assembly for driving a common shaft | US11133763 |
pulsed electric machine control using tables | US11133767 |
pulse modulated control with field weakening for improved motor efficiency | US11167648 |
pulse electric motor control | US11228272 |
optimizing battery efficiency by DMD controller for electric motor | US11345241 |
pulsed electric motor | JP7082679 |
pulsed electric machine control using tables | US11427177 |
magnetically de-coupled, separately controlled, multiple electric machine assembly for driving a common shaft | US11545918 |
reducing vibration for elec motors | US11557996 |
pulse modulated control with field weakening for improve motor efficiency | US11623529 |
pulsed electric motor contorl | US11626827 |
pulsed electric machine control for reducing NVH | US11628730 |
HW electro-mechanical arrangement | US11637466 |
optimizing waveforms for elec motors | US11637513 |
optimizing battery efficiency by DMD controller for electric motor | US11673476 |
eMachines with efficient torque transmission | US11695361 |
boosted converter for pulsed electric machine control | KR102561505 |
pulsed electric motor | IN420413 |
boosted converter for pulsed electric machine control | US11863096 |
methods for improving rate of rise of torque in electric machines with sator current biasing | US11888424 |
boosted converter for pulsed electric machine control | EP3939155 |
boosted converter for pulsed electric machine control | KR102660212 |
boosted converter for pulsed electric machine control | IT3939155 |
boosted converter for pulsed electric machine control | GB3939155 |
electric machine torque adjust | US11916498 |
DMD SRM phasing while matching torque output & demand | US11973447 |
pulsed electric motor control | US12003202 |
pulsed electric motor control | EP3753100 |