초록 ▼

Intake and exhaust ports of an internal combustion engine possess respective turbine impellers, and an electrical rotary machine is formed on a rotary shaft connecting the impellers. Sensors are provided for sensing the loaded state of the engine at all times based on engine rpm and the amount of fu

Intake and exhaust ports of an internal combustion engine possess respective turbine impellers, and an electrical rotary machine is formed on a rotary shaft connecting the impellers. Sensors are provided for sensing the loaded state of the engine at all times based on engine rpm and the amount of fuel supplied to the engine. When the engine is overloaded, the electrical rotary machine is made to operate as a motor to assist in the supercharging of the engine. When the engine load is not excessive, the rotary machine is made to operate as a generator to charge surplus energy, derived from the engine exhaust, in a storage battery.

대표청구항 ▼

Auxiliary apparatus for an engine coupled to a battery for storing and supplying electric power, and having an intake pipe, an exhaust pipe and a supercharger, with a rotary shaft, provided on the engine, said apparatus comprising: a first impeller provided in the intake pipe of the engine at a poin

Auxiliary apparatus for an engine coupled to a battery for storing and supplying electric power, and having an intake pipe, an exhaust pipe and a supercharger, with a rotary shaft, provided on the engine, said apparatus comprising: a first impeller provided in the intake pipe of the engine at a point along the intake pipe and coupled to the rotary shaft; a second impeller provided in the exhaust pipe of the engine at a point along the exhaust pipe and connected directly to the rotary shaft; an electrical rotary machine coupled to the battery and the rotary shaft, including: a rotor coupled to the rotary shaft; and a stator positioned about an outer periphery of said rotor; means for detecting the voltage of the battery; means for sensing an amount of fuel supplied to the engine; means for sensing a rotational speed of the engine; means for sensing a loaded state of the engine based on the amount of fuel supplied and the rotational speed of the engine, and for generating a sensing signal; first means for controlling said electrical rotary machine so that said electrical rotary machine receives electric power supplied by the battery and operates as a motor when the load on the engine is determined to be greater than a predetermined value based on the sensing signal from said loaded state sensing means; second means for controlling said electrical rotary machine so that said electrical rotary machine operates as a generator to provide electric power for storage by the battery when the load on the engine is determined to be smaller than the predetermined value based on the sensing signal from said loaded state sensing means; third means for controlling said electrical rotary machine so that said electrical rotary machine operates as a generator when the rotational speed of the engine is at least a predetermined idling rpm and the voltage of the battery detected by said voltage detecting means is lower than a predetermined voltage; and means for increasing the amount of fuel supplied to the engine when said electrical rotary machine is controlled to operate as a generator by said third means.