Modular position controller for variable valve timing

Patent · Tue Mar 20 04:00:00 EST 1990

OSTI ID:7077109

Bauer, T J

This patent describes an improvement in an internal combustion engine that has pistons reciprocating within cylinders to drive a crankshaft and valves associated with the cylinders that are operated in timed relation to the crankshaft, an engine electronic control unit that control fuel and ignition functions of the engine, means for sensing engine TDC position, means for sensing the phasing of the operation of the engine valves and means including a prime mover for adjusting the phasing of the valves. The improvement comprises a second electronic control unit for closed-loop controlling the prime mover to cause the phasing of operation of the valves to follow a desired phasing that is commanded by the first-mentioned electronic control unit.

• Assignee: Siemens-Bendix Automotive Electronics L.P., Troy, MI
• Patent Number(s): A; US 4909194
• Application Number: PPN: US 7-383382A
• OSTI ID: 7077109
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
COMPUTERIZED CONTROL SYSTEMS
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
ENGINES
EQUIPMENT
FLOW REGULATORS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
OPERATION
POSITIONING
VALVES