| 摘要 |
FIELD: internal combustion engine. ^ SUBSTANCE: invention considers the operation and control of the internal combustion engine installed in vehicle. Control unit of internal combustion engine controls the rotating frequency of internal combustion engine idle run and contains the control block. Control is carried out by regulating rotation frequency of internal combustion engine according to the target rotation frequency of internal combustion engine. Target frequency is set according to working condition of the internal combustion engine and decreased when speed of a vehicle is equal or below the set value. If rotation frequency of internal combustion engine is equal or lower than threshold rotation frequency of internal combustion engine, which is lower than target frequency, rapid increase in rotation frequency of internal combustion engine is carried out. Rapid increase in rotation frequency of the internal combustion engine is made to prevent reduction of rotation frequency of the internal combustion engine. The control block defines vehicle movement on a road surface with low friction factor. During movement on a road surface with low friction factor, in case of switching the internal combustion engine to idle run, the control block reduces target rotation frequency of the internal combustion engine. Reduction of the threshold frequency is made to prevent the reduction of rotation frequency of the internal combustion engine. Also the invention describes the rotation frequency control method of the internal combustion engine in idle run. ^ EFFECT: ability to stop the vehicle within a short time. ^ 10 cl, 22 dwg |
