Fuel mixture control system

Patent · Tue Jun 03 00:00:00 EDT 1980

OSTI ID:5645766

Drews, U; Gloss, E; Kirn, D; Moder, H; Schnurle, H; Steinbrenner, U; Streit, K; Werner, P

A fuel mixture control apparatus for an electronic fuel injection system for internal combustion engines is disclosed. In a warm-up controller, the fuel injection control pulses are lengthened for enrichment of the fuel-air mixture during engine warm-up on the basis of signals supplied by a temperature transducer. In order to make the warm-up enrichment dependent on prevailing engine states, for example on the conditions of idling and partial or full load, circuitry is provided to sense these conditions and to suitably alter the enrichment factor. A further circuit suppresses the dependence or enrichment on engine status during engine starting. Various embodiments are presented.

• Assignee: Bosch, Robert Gmbh (Germany, Federal Republic Of)
• Patent Number(s): US 4205635
• OSTI ID: 5645766
• Resource Relation: Patent Priority Date: Priority date 26 Mar 1976, Germany, Federal Republic of (F.R. Germany); Other Information: PAT-APPL-780744
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
FUEL INJECTION SYSTEMS
CONTROL SYSTEMS
INTERNAL COMBUSTION ENGINES
ELECTRICAL EQUIPMENT
FUEL-AIR RATIO
ENGINES
EQUIPMENT
FUEL SYSTEMS
HEAT ENGINES
330100* - Internal Combustion Engines