| 摘要 |
The present invention provides a flow learning system and method of an exhaust gas recirculation device for a vehicle. The present invention can improve the reliability of a flow learning value of an exhaust gas recirculation device and can maintain the amount of fuel because the present invention judges the flow learning value to be erroneous if the fuel learning value for a previous cycle exceeds a limit value, and conducts flow learning for a current cycle (N) based on a reference value, by judging whether or not the flow learning value of the exhaust gas recirculation device for a previous cycle (N-1) exceeds the predetermined limit value, and conducting the flow learning of the exhaust gas recirculation device for the current cycle (N) based on the predetermined reference value if the judged flow learning value for the previous cycle exceeds the limit value. [Reference numerals] (101) Receive a learning value for a previous cycle (N-1); (103) Learning value > Limit value ?; (105) Judge the invalidity of the learning value for the previous cycle (N-1); (107) Conduct learning for the current cycle (N) based on a stored reference value; (109) Learning value for the current cycle (N) > Limit value ?; (111) Judge and notify the malfunction of an exhaust gas recirculation device; (113) Store the learning value for the current cycle (N) as the learning value for the previous cycle (N-1); (115) Is the learning of the exhaust gas recirculation device ended ?; (121) Conduct learning for the current cycle (N) based on the learning value for the previous cycle (N-1); (AA) Start; (BB) End |
