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
Switchgear operating apparatus and three-phase switchgear
Optoelectronic semiconductor chip and method for manufacturing a contact structure for such a chip
Preventative traffic congestion social networking improvement system within a community
Reducing energy and increasing speed by an instruction substituting subsequent instructions with specific function instruction
Method and system for controlled media sharing in a network
Systems and methods for tracking mobile terrestrial terminals for satellite communications
Encoding method, decoding method, encoding device, decoding device, program, and recording medium
  Randomly Featured Patents
Charge coupled device random access memory
Outboard motor
Substances to stimulate the extraction of crudeoil and a method of processing them
Self-adhesive hanger device, assembly of same and method for making same
Lateral trenching for cross coupling suppression in integrated optics chips
Extension of electronic buses and their bus protocols using signal-propagation timing compensation
Protecting mobile code against malicious hosts
Operating theatre linen system
Laser welding system
Mobile application generator