Electronic supercharger control system of engine and electronic supercharger

Abstract

The invention discloses an electronic supercharger control system of an engine and an electronic supercharger. The electronic supercharger control system comprises the engine, the electronic supercharger, a battery and a controller, wherein the electronic supercharger comprises a turbine arranged in an air inlet pipe of the engine and a start-up integrated machine in driving connection with the turbine. The battery is connected with the start-up integrated machine, and the controller is connected with the electronic supercharger. The controller is used for controlling the start-up integrated machine to serve as a generator to generate electricity through acting of the turbine by using gas when the engine is in an SCR heating or DPF heating state; the generated electric energy is stored inthe battery; and when the engine is in the transient acceleration state, the start-up integrated machine is controlled to serve as a motor to drive the turbine to rotate, and thus the air inlet amountincreased. The controller is used for controlling the start-up integrated machine to serve as the generator or the motor according to the working state of the engine, the engine energy is recovered by using the electronic supercharger, when the engine is subjected to transient acceleration, the recovered energy is utilized to drive the turbine to rotate, air intake is accelerated, and the quick transient response of the engine is realized.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an electronic supercharger control system of an engine. It also relates to an electronic supercharger applied in the electronic supercharger control system. Background technique [0002] Diesel engines are facing stricter emission regulations and lower emission limits, and the challenges faced by engines are also increasing. On the one hand, emissions must be improved; on the other hand, customers require engines to have good power and low fuel consumption. The transient response capability of the engine is an important reference item to reflect the power performance of the engine. In order to improve the transient response of the engine, an electronic turbocharger is currently used, that is, an electronic turbocharger is installed on the intake side of the engine. The electronic turbocharger includes a turbine and a motor. When the vehicle is in the process of transient acceler...

AI Technical Summary

Problems solved by technology

[0003] However, during the transient acceleration process of the vehicle, the motor is used to drive the compressor, and the process of improving the transient acceleration performance needs to consume the electric energy of the vehicle battery, which consumes a lot of energy.

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