Resources Contact Us Home
Air/fuel control including lean cruise operation

Image Number 3 for United States Patent #5787380.

A control method is described for an engine having a throttle body coupled to the engine intake manifold and a bypass air passageway coupled to the throttle body via an electronically controllable bypass valve. A single measurement of air inducted through both the throttle body and the bypass air passageway is provided by an air flow meter. Fuel is delivered to the intake manifold in relation to the single air measurement. An air flow correction value is generated from a functional relationship between engine torque and air/fuel ratio during lean air/fuel operating conditions. Air flow through the bypass passageway is increased by the air flow correction value to compensate for engine torque loss resulting from such lean operation.

  Recently Added Patents
Secure soft SIM credential transfer
Active matrix substrate, method for manufacturing same, and liquid crystal display apparatus
Identification of electrical grid phase information for end-points in a grid network
Pausing multimedia data streams
Squib control circuit
Method for decoding a spatially multiplexed data signal using a maximum likelihood detection
Method for determining a corrected variance representative of the condition of reception of signals representative of symbols
  Randomly Featured Patents
Electromagnetically biased homopolar magnetic bearing
Testing of integrated circuit devices on loaded printed circuit boards
Polyester sublime layers for photographic layers with polyester bases
Plastic forceps
Cutting tip of frame saw and frame saw with the cutting tip
Children's sleeping garments
Engine output control system
Methacrylic copolymers and dispersants for pigments used in non-aqueous paints and varnishes comprising the copolymers
Morphing structure
Method for purifying TiO.sub.2 ore by alternate leaching with an aqueous solution of an alkali metal compound and an aqueous solution of mineral acid