초록 ▼

In the range where the fuel efficiency may be improved by relatively increasing the load of working cylinders at the time of partial loading of a multicylinder internal combustion engine, the intake pressure of the engine is maintained at a fixed optimum value. Also, the number of working cylinders

In the range where the fuel efficiency may be improved by relatively increasing the load of working cylinders at the time of partial loading of a multicylinder internal combustion engine, the intake pressure of the engine is maintained at a fixed optimum value. Also, the number of working cylinders is controlled, so that a torque actually required by the driver is obtained, and under any load, the maximum improvement of fuel efficiency may be attained at a saving of fuel consumption.

대표청구항 ▼

An output control system for a multicylinder internal combustion engine having an intake pipe comprising an engine speed detector for detecting the speed of the engine, signal output means for producing a signal corresponding to an output required of the engine, first control means for receiving sig

An output control system for a multicylinder internal combustion engine having an intake pipe comprising an engine speed detector for detecting the speed of the engine, signal output means for producing a signal corresponding to an output required of the engine, first control means for receiving signals of said engine speed detector and said signal output means, said first control means controlling the number of combinations during predetermined combustion cycles in all cylinders by periodically stopping fuel injection to a specific cylinder to periodically stop the fuel combustion during the cycles in accordance with the signals of said engine speed detector and said signal output means and supplying fuel to the engine intermittently thereby to subject the engine to a partial cylinder operation, and second control means including a constant pressure valve for controlling the pressure in the intake pipe at a constant level at the time of partial load operation of the engine.