EP 0236207 B1 19900404 - ELECTRONIC-INJECTION METHOD AND SYSTEM USING LAMBDA SENSOR REGULATION FOR AN INTERNAL-COMBUSTION ENGINE
Title (en)
ELECTRONIC-INJECTION METHOD AND SYSTEM USING LAMBDA SENSOR REGULATION FOR AN INTERNAL-COMBUSTION ENGINE
Publication
Application
Priority
FR 8602557 A 19860225
Abstract (en)
[origin: US4766871A] According to this process, the computer determines opening time (Ti) of the injector from a nominal time (Tin) as a function of the parameters of the engine operation and of a proportional and integral correction term ( alpha cl) as a function of the state of the signal of probe lambda . More particularly, a richness predictive estimate (Re) of the exhaust gases is made from the engine operating parameters and from pure delay (m), determined experimentally, between injector (2) and probe (12), at least a simulated probe signal (Ss lambda ) is produced from said richness predictive estimate, said correction term ( alpha cl) is produced from simulated probe signal (Ss lambda ) and said correction term ( alpha cl) is modified periodically in response to the detection of a difference between the state of measured probe signal (S lambda ) and the state of a delayed simulated probe signal (S''s lambda ). Application to vehicles with internal combustion engines.
IPC 1-7
IPC 8 full level
F02D 41/14 (2006.01); F02D 41/26 (2006.01); F02D 41/34 (2006.01)
CPC (source: EP US)
F02D 41/1481 (2013.01 - EP US); F02D 41/1456 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE GB IT LI SE
DOCDB simple family (publication)
EP 0236207 A1 19870909; EP 0236207 B1 19900404; AT E51681 T1 19900415; DE 3762145 D1 19900510; FR 2594890 A1 19870828; FR 2594890 B1 19900309; US 4766871 A 19880830
DOCDB simple family (application)
EP 87400342 A 19870217; AT 87400342 T 19870217; DE 3762145 T 19870217; FR 8602557 A 19860225; US 1853087 A 19870225