Duty cycling feature for the proportional purge solenoid to impr
Duty ratio control method for on-off type solenoid valves
Duty ratio control method for solenoid control valve means
Dwell circuitry for an ignition control system
Dwell linkage
Dynamic EGR concentration estimation method for a motor...
Dynamic electronic control system for controlling the injection
Dynamic enhancement of EGR flow in an internal combustion engine
Dynamic fuel control
Dynamic fuel injection control pressure set-point limits
Dynamic gas seal for internal combustion engines
Dynamic infrared sensor for automotive pre-vaporized fueling...
Dynamic methods and apparatus for reducing octane requirement in