Patent ID: 11920529
Assignee: NISSAN MOTOR CO., LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 8:
9. The control method of the internal combustion engine according to claim 1,
wherein the first output limit is determined as an intersection point of a knock-limit output line which is set according to the exhaust gas recirculation rate and an ignition timing and an exhaust-temperature-limit output line which is set according to the exhaust gas recirculation rate and the ignition timing,
wherein one type of the second output limit is determined as an intersection point of the knock-limit output line and an air-quantity-limit output line which is set according to the exhaust gas recirculation rate, the ignition timing and the atmospheric pressure,
wherein another type of the second output limit is determined as an intersection point of the knock-limit output line and a thermal-management-limit output line which is set according to the exhaust gas recirculation rate, the ignition timing and the vehicle running speed, and
wherein the exhaust gas recirculation device is controlled according to the target exhaust gas recirculation rate at which the first output limit becomes equal to a lower value among said one and another types of the second output limit.