Inventor
HAMBURG DOUGLAS R
US56 patents
Patents
50 patentsUS5452576ASep 26, 1995
Air/fuel control with on-board emission measurement
FORD MOTOR CO144 citations98
US5265417ANov 30, 1993
Method and apparatus for determining the hydrocarbon conversion efficiency of a catalytic converter
FORD MOTOR CO81 citations96
US5177464AJan 5, 1993
Catalyst monitoring using a hydrocarbon sensor
FORD MOTOR CO56 citations96
US5077970AJan 7, 1992
Method of on-board detection of automotive catalyst degradation
FORD MOTOR CO97 citations96
US5054454AOct 8, 1991
Fuel vapor recovery control system
FORD MOTOR CO61 citations96
US4748959AJun 7, 1988
Regulation of engine parameters in response to vapor recovery purge systems
FORD MOTOR CO85 citations96
US5598703AFeb 4, 1997
Air/fuel control system for an internal combustion engine
FORD MOTOR CO77 citations95
US5048493ASep 17, 1991
System for internal combustion engine
FORD MOTOR CO71 citations95
US5359852ANov 1, 1994
Air fuel ratio feedback control
FORD MOTOR CO63 citations94
US5090388AFeb 25, 1992
Air/fuel ratio control with adaptive learning of purged fuel vapors
FORD MOTOR CO66 citations94
US5483946AJan 16, 1996
Engine control system with rapid catalyst warm-up
FORD MOTOR CO58 citations93
US5408215AApr 18, 1995
Catalyst monitoring using a hydrocarbon sensor
FORD MOTOR CO53 citations93
US5375415ADec 27, 1994
Adaptive control of EGO sensor output
FORD MOTOR CO27 citations93
US5365216ANov 15, 1994
Catalyst monitoring using ego sensors
FORD MOTOR CO35 citations93
US5363091ANov 8, 1994
Catalyst monitoring using ego sensors
FORD MOTOR CO42 citations93
US5099647AMar 31, 1992
Combined engine air/fuel control and catalyst monitoring
FORD MOTOR CO38 citations93
US5080078AJan 14, 1992
Fuel vapor recovery control system
FORD MOTOR CO54 citations93
US4789939ADec 6, 1988
Adaptive air fuel control using hydrocarbon variability feedback
FORD MOTOR CO33 citations93
US4677956AJul 7, 1987
Solenoid duty cycle modulation for dynamic control of refueling vapor purge transient flow
FORD MOTOR CO28 citations93
US4641623AFeb 10, 1987
Adaptive feedforward air/fuel ratio control for vapor recovery purge system
FORD MOTOR CO51 citations93
US5313791AMay 24, 1994
Method for detecting catalyst malfunctions
FORD MOTOR CO20 citations92
US5060621AOct 29, 1991
Vapor purge control system
FORD MOTOR CO31 citations92
US5515826AMay 14, 1996
Engine air/fuel control system
FORD MOTOR CO21 citations91
US5370101ADec 6, 1994
Fuel controller with oxygen sensor monitoring and offset correction
FORD MOTOR CO21 citations91
US5325711AJul 5, 1994
Air-fuel modulation for oxygen sensor monitoring
FORD MOTOR CO34 citations91
US5282360AFeb 1, 1994
Post-catalyst feedback control
FORD MOTOR CO28 citations91
US5255512AOct 26, 1993
Air fuel ratio feedback control
FORD MOTOR CO45 citations91
US5048492ASep 17, 1991
Air/fuel ratio control system and method for fuel vapor purging
FORD MOTOR CO43 citations91
US5584176ADec 17, 1996
Engine control to achieve rapid catalyst warm-up
FORD MOTOR CO25 citations89
US5291673AMar 8, 1994
Oxygen sensor system with signal correction
FORD MOTOR CO37 citations88
US4736724AApr 12, 1988
Adaptive lean limit air fuel control using combustion pressure sensor feedback
FORD MOTOR CO32 citations87
US5268086ADec 7, 1993
Catalyst monitoring using ego sensors
FORD MOTOR CO20 citations82
US4664087AMay 12, 1987
Variable rate purge control for refueling vapor recovery system
FORD MOTOR CO21 citations82
US4161931AJul 24, 1979
Vapor temperature controlled exhaust gas heat exchanger
FORD MOTOR CO22 citations82
US5499500AMar 19, 1996
Engine air/fuel control system with catalytic converter and exhaust gas oxygen sensor monitoring
FORD MOTOR CO11 citations74
US5392599AFeb 28, 1995
Engine air/fuel control with adaptive correction of ego sensor output
FORD MOTOR CO17 citations74
US5341643AAug 30, 1994
Feedback control system
FORD MOTOR CO17 citations74
US5329764AJul 19, 1994
Air/fuel feedback control system
FORD MOTOR CO15 citations74
US5067469ANov 26, 1991
Fuel vapor recovery system and method
FORD MOTOR CO18 citations74
US4715340ADec 29, 1987
Reduction of HC emissions for vapor recovery purge systems
FORD MOTOR CO14 citations74
US4377143AMar 22, 1983
Lean air-fuel control using stoichiometric air-fuel sensors
FORD MOTOR CO14 citations74
US4099499AJul 11, 1978
Vapor temperature controlled exhaust gas heat exchanger
FORD MOTOR CO19 citations74
US4094291AJun 13, 1978
Apparatus for mixing a vaporized liquid fuel with air
FORD MOTOR CO7 citations74
US5465697ANov 14, 1995
Cold start engine air/fuel control system
FORD MOTOR CO14 citations73
US5383333AJan 24, 1995
Method for biasing a hego sensor in a feedback control system
FORD MOTOR CO17 citations73
US5379590AJan 10, 1995
Air/fuel control system with hego current pumping
FORD MOTOR CO8 citations73
US5582150ADec 10, 1996
Lean air/fuel control system for an internal combustion engine
FORD MOTOR CO7 citations72
US5566663AOct 22, 1996
Air/fuel control system with improved transient response
FORD MOTOR CO7 citations72
US5511526AApr 30, 1996
Engine air/fuel control with adaptive learning
FORD MOTOR CO16 citations72
US5503134AApr 2, 1996
Fuel controller with air/fuel transient compensation
FORD MOTOR CO14 citations70
Showing the top 50 of 56 patents by PatentIndex Score.