Internal combustion engine e.g. lean burn type Otto cycle engine, operating method, involves applying additional force to engine by motor to regulate engine speed during idle condition when speed is reduced due to defective combustion

摘要

The method involves injecting a homogenous fuel mix into an internal combustion engine during an idle condition of the engine. An additional force is applied to the engine by an electric motor when the engine speed is reduced due to stochastic defective combustion, for regulating the engine speed during the idle condition. The combustion arises due to low exhaust gas temperature, catalyst system aging, and operating noise.