Automobile engine supercharging method

Abstract

The invention relates to an automobile engine supercharging device and an automobile engine supercharging method. An air inlet turbine and an exhaust turbine are coaxially arranged and are disengaged and engaged through a clutch, the air inlet turbine is parallel to an automobile engine crankshaft, the air inlet turbine and the automobile engine crankshaft are transmitted through a belt, the belt is tensioned or loosened through a tensioning wheel with the movable position, the automobile speed is detected through an automobile speed sensor, and when it is detected that an automobile is in the flameout state, the clutch carries out disengaging, and the belt is loosened through the tensioning wheel; when it is detected that the automobile is started, and the automobile speed is lower than the given low-speed limit value, the tensioning wheel tensions the belt, and the crankshaft drives the air inlet turbine to work through the belt; when it is detected that the automobile speed is higher than the given high-speed limit value, the exhaust turbine and the air inlet turbine are coaxially connected through the clutch, the exhaust turbine is used for driving the air inlet turbine to work, and meanwhile the tensioning wheel loosens the belt. No matter whether an engine is in the high-speed station or in the low-speed station, rapid supercharging can be carried out, the power performance of the engine can be rapidly improved, and the good supercharging effect is obtained.

Description

technical field [0001] The invention relates to an automobile engine supercharging device and an automobile engine supercharging method. Background technique [0002] At present, there are three common types of automobile supercharging technology, namely mechanical supercharging, exhaust gas turbocharging and air wave supercharging. Among them, mechanical supercharging can effectively increase engine power. When the engine is at low speed, its supercharging effect is very obvious, but at high speed, its supercharging effect is not as good as exhaust gas turbocharging. Exhaust gas turbocharging can effectively use the energy of exhaust gas for supercharging, and its economy is better than mechanical supercharging. However, when the engine is at low speed, the torque generated by this supercharging method does not increase much, and the acceleration at low speed is poor. Contents of the invention [0003] In order to overcome the above-mentioned defects of the prior art, th...

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Problems solved by technology

Among them, mechanical supercharging can effectively increase engine power. When the engine is at low speed, its supercharging effect is very obvious, but at high speed, its supercharging effect is not as good as that of exhaust gas turbocharging.

Exhaust gas turbocharging can effectively use the energy of exhaust gas for supercharging, and its economy is better than that of mechanical supercharging. However, when the engine is at low speed, the torque generated by this supercharging method does not increase much, and the acceleration at low speed is poor.

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