Engine starting method of light mixing system, light mixing system and storage medium

Abstract

The embodiment of the invention discloses an engine starting method of a light mixing system, the light mixing system and a storage medium. The method comprises the steps that when it is detected that a light mixing system power-on correlation signal is received, power-on of the light mixing system is executed; after the light hybrid system is successfully electrified, detecting whether the discharge power of the first battery meets the starting power requirement of the motor or not; if yes, a first battery is adopted to supply power to the motor when a starting signal is received, and engine starting is completed; if not, the bidirectional direct current converter is controlled to boost the voltage of the second battery to be the same as the voltage of the first battery, and when a starting signal is received, the first battery and the second battery are used for jointly supplying power to the motor, and engine starting is completed. Compared with the prior art, the technical scheme provided by the embodiment of the invention can meet the power requirement of starting the engine in a low-temperature environment while meeting the hot-state starting of the engine, improves the low-temperature starting capability of the light hybrid system, maximally utilizes the advantages of motor starting, and improves the starting comfort of the engine.

Description

technical field [0001] The embodiment of the invention relates to the technical field of automobile engine starting, in particular to an engine starting method, a light mixing system and a storage medium of a light mixing system. Background technology [0002] As a hybrid technology that can effectively reduce the actual fuel consumption of vehicles, light hybrid system has attracted more and more attention because of its ultra-high cost performance, comfortable start and stop function and less changes to traditional vehicles. However, due to the large demand for engine cold start power, especially the limited low-temperature discharge power of lithium-ion battery, at present, the vehicle engine equipped with light mixing system still uses starter to start for the first time, especially at low temperature, and fails to use motor to start the engine. Therefore, although the light mixing system can realize the engine start and stop function, it is still unable to start the engine i...

AI Technical Summary

Problems solved by technology

However, due to the large demand for engine cold start power, especially the low-temperature discharge power of lithium-ion batteries is limited, the current vehicle engine equipped with a mild hybrid system still uses the starter to start the engine for the first time, especially when starting at low temperature, and cannot use the electric motor to start the engine

Therefore, although the mild hybrid system can realize the engine start and stop function, it still cannot start the engine in a low temperature environment.

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