Inventor
Jy-Jen F. Sah
Inventor
West Bloomfield, MI, US
Overview
Patents· 99 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y02Tprimary
Y02TClimate change mitigation technologies related to transportation21%
B60WConjoint control of vehicle sub-units of different type or different function20%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles18%
F16HGearing18%
B60LPropulsion of electrically-propelled vehicles10%
F16DCouplings for transmitting rotation3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%
Y10TTechnical subjects covered by former us classification2%
F02DControlling combustion engines1%
F02NStarting of combustion engines1%
PatentTitleYear
10,501,068Method and apparatus for controlling a multi-mode powertrain system20199,352,741'Method and apparatus for controlling creep torque in a powertrain system'20169,140,337'Method for model based clutch control and torque estimation'20159,097,337'Method and apparatus to control hydraulic line pressure in an electro-mechanical transmission'20159,097,294'Control of clutch fill command based on hydraulic state of oncoming clutch'20159,022,165'Vehicle lubrication flow control'20159,014,934'Method for controlling pump transitions in a multi-mode hybrid transmission'20159,005,076'Method and apparatus for controlling a shift in a multi-mode powertrain system'20159,008,926'Control of engine torque during upshift and downshift torque phase for a hybrid powertrain system'20158,989,930'Method and apparatus for controlling an engine disconnect clutch in a powertrain system'20158,888,639'Method for providing a controlled neutral in lieu of a conventional neutral in an electro-mechanical transmission'20148,825,320'Method and apparatus for developing a deceleration-based synchronous shift schedule'20148,801,567'Method and apparatus for executing an asynchronous clutch-to-clutch shift in a hybrid transmission'20148,751,078'Off-going clutch control'20148,733,481'Method for starting an engine of a hybrid powertrain'20148,718,887'Energy based transmission friction element diagnostic'20148,715,124'Method and apparatus for executing a shift in a powertrain system'20148,645,013'Method and apparatus for driveline noise control in a hybrid powertrain'20148,628,451'Method and apparatus for executing a shift in a powertrain system'20148,620,505'Stand alone engine speed control at cold start for hybrid transmission'20138,562,483'Method and system for controlling an EV mode transition in a two-mode hybrid vehicle'20138,560,191'Method and apparatus to control clutch pressures in an electro-mechanical transmission'20138,550,958'Shift control method for a multi-mode hybrid transmission'20138,548,703'Method and apparatus to determine clutch slippage in an electro-mechanical transmission'20138,532,856'Temperature-based state optimization of a hybrid transmission'20138,500,598'Method and apparatus to control motor cooling in an electro-mechanical transmission'20138,494,702'Method and driveline stability control system for a vehicle'20138,485,943'Vehicle fluid pressure control'20138,489,265'Method and engine stability control system for a hybrid electric vehicle'20138,489,293'Method and apparatus to control input speed profile during inertia speed phase for a hybrid powertrain system'20138,483,898'Method and apparatus for controlling speed of an electric pump in a vehicle'20138,475,329'Simultaneous auto-start and asynchronous shift for a hybrid vehicle'20138,414,270'Speed control of an electrically-actuated fluid pump'20138,414,449'Method and apparatus to perform asynchronous shifts with oncoming slipping clutch torque for a hybrid powertrain system'20138,412,397'Clutch fill command based on clutch slip speed profile synchronization prediction'20138,412,426'Multi-mode hybrid transmission and method for performing a quasi-asynchronous shift in a hybrid transmission'20138,406,945'Method and apparatus to control logic valves for hydraulic flow control in an electro-mechanical transmission'20138,393,996'Method and apparatus to detect a mode-gear mismatch during operation of an electro-mechanical transmission'20138,395,278'Method and apparatus for starting an internal combustion engine'20138,357,074'Electro-mechanical transmission control system'20138,348,797'Hydraulic clutch control system'20138,335,623'Method and apparatus for remediation of and recovery from a clutch slip event in a hybrid powertrain system'20128,303,463'Method and apparatus to control clutch fill pressure in an electro-mechanical transmission'20128,298,116'Method and apparatus to detect a mode-gear mismatch during steady state operation of an electro-mechanical transmission'20128,296,027'Method and apparatus to control off-going clutch torque during torque phase for a hybrid powertrain system'20128,287,427'Multi-mode hybrid transmission and shift control method for a multi-mode hybrid transmission'20128,290,673'System and method of detecting a failed friction element'20128,290,681'Method and apparatus to produce a smooth input speed profile in mode for a hybrid powertrain system'20128,282,526'Method and apparatus to create a pseudo torque phase during oncoming clutch engagement to prevent clutch slip for a hybrid powertrain system'20128,285,432'Method and apparatus for developing a control architecture for coordinating shift execution and engine torque control'20128,266,986'Transmission hydraulic control system having a dual element pump'20128,221,285'Method and apparatus to offload offgoing clutch torque with asynchronous oncoming clutch torque, engine and motor torque for a hybrid powertrain system'20128,224,544'Method and apparatus to control launch of a vehicle having an electro-mechanical transmission'20128,214,093'Method and apparatus to prioritize transmission output torque and input acceleration for a hybrid powertrain system'20128,187,145'Method and apparatus for clutch torque control in mode and fixed gear for a hybrid powertrain system'20128,182,390'Method for controlling neutral modes in a multi-mode hybrid transmission'20128,170,762'Method and apparatus to control operation of a hydraulic pump for an electro-mechanical transmission'20128,167,773'Method and apparatus to control motor cooling in an electro-mechanical transmission'20128,170,764'Method and apparatus to reprofile input speed during speed during speed phase during constrained conditions for a hybrid powertrain system'20128,155,814'Method of operating a vehicle utilizing regenerative braking'20128,146,690'Method of controlling an auxiliary pump for a transmission'20128,147,375'Method of clutch control to start an engine with a hybrid transmission'20128,121,768'Method for controlling a hybrid powertrain system based upon hydraulic pressure and clutch reactive torque capacity'20128,100,803'Hydraulic clutch control mechanism for a multi-mode hybrid transmission'20128,092,339'Method and apparatus to prioritize input acceleration and clutch synchronization performance in neutral for a hybrid powertrain system'20128,079,933'Method and apparatus to control engine torque to peak main pressure for a hybrid powertrain system'20118,066,615'Method and apparatus to detect a mode-gear mismatch during operation of an electro-mechanical transmission'20118,068,948'Method for controlling multiple EVT shifts in a multi-mode hybrid transmission'20118,066,620'Method of clutch actuation for hybrid transmissions'20118,062,001'Method for controlling pump transitions in a multi-mode hybrid transmission'20118,062,174'Method and apparatus to control clutch stroke volume in an electro-mechanical transmission'20118,021,257'Hydraulic clutch control system'20118,000,865'Method and apparatus for transitioning an electrically variable transmission'20118,000,866'Engine control system for torque management in a hybrid powertrain system'20117,985,154'Method and apparatus to control hydraulic pressure for component lubrication in an electro-mechanical transmission'20117,908,063'Synchronous shift execution for hybrid transmission'20117,878,932'Method and apparatus to monitor a valve adapted to control mode to gear transitions during operation of an electro-mechanical transmission'20117,867,135'Electro-mechanical transmission control system'20117,706,949'Method and apparatus to control an electro-mechanical transmission during shifting event'20107,670,253'Clutch control for hybrid transmission'20107,587,442'Method of determining the derivative of an input signal'20097,585,249'Apparatus and method to control transmission torque output during a gear-to-gear shift'20097,568,990'Method and apparatus to control operation of a hydraulic control circuit for an electro-mechanical transmission'20097,556,120'Method and apparatus to control hydraulic pressure in an electro-mechanical transmission'20097,556,578'Method and apparatus to control operation of a hydraulic control circuit for an electro-mechanical transmission'20097,537,542'Control system architecture for a hybrid powertrain'20097,497,803'Method and apparatus to control an electro-hydraulic transmission during shifting event'20097,368,886'Method of testing motor torque integrity in a hybrid electric vehicle'20087,356,398'Synchronous shift control in an electrically variable transmission'20087,324,885'Shift through neutral control in an electrically variable transmission'20087,236,871'Acceleration limiting for a vehicle'20077,217,221'Method for active engine stop of a hybrid electric vehicle'20077,219,000'Speed control for an electrically variable transmission'20077,130,734'Two clutch fixed-ratio exit control for multi-mode hybrid drive'20067,110,869'Hybrid transmission member speed determination, sensor diagnostics and fault recovery'20067,103,463'Hydraulic clutch state diagnostic and control'20067,028,657'Multi-stage compression ignition engine start'20067,010,406'Shift inhibit control for multi-mode hybrid drive'20065,983,863'Compact high performance fuel system with accumulator'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999Based in Columbus, IN, US· patent location history
2006–2016Based in West Bloomfield, MI, US· patent location history
2009–2016Patents assigned to GM GLOBAL TECH OPERATIONS INC (86)· patent assignee history
2011–2015Patents assigned to SAH JY-JEN F (66)· patent assignee history
2011–2015Patents assigned to BAYERISCHE MOTOREN WERKE AG (27)· patent assignee history
2011–2015Patents assigned to DAIMLER AG (27)· patent assignee history
2011–2015Patents assigned to KAMINSKY LAWRENCE A (24)· patent assignee history
2019Based in Warren, MI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GM GLOBAL TECH OPERATIONS INC | 86 | 2009–2016 |
| SAH JY-JEN Fself | 66 | 2011–2015 |
| BAYERISCHE MOTOREN WERKE AG | 27 | 2011–2015 |
| DAIMLER AG | 27 | 2011–2015 |
| KAMINSKY LAWRENCE A | 24 | 2011–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| West Bloomfield, MI, US | 97 | 2006–2016 |
| Warren, MI, US | 1 | 2019 |
| Columbus, IN, US | 1 | 1999 |