Engine starting method, engine starting control system and hybrid construction machinery

Abstract

The invention provides an engine starting method, an engine starting control system and a hybrid construction machine. The starting method includes: running the starter motor; after the starter motor runs for a preset time, obtaining the actual speed of the starter motor; if the actual speed of the starter motor is greater than If it is equal to the rated speed, the engine is started by using the output torque of the starter motor; if the actual speed of the starter motor is lower than the rated speed, the generator is controlled to run in reverse, and the engine is started by using the output torque of the generator. The invention provides an engine starting method, an engine starting control system and a hybrid construction machine, and it is proposed that when the engine cannot be started normally, the operation mode of the generator is switched to reverse operation, and the generator is used to drive the engine to start, which is applicable to the plateau alpine environment The start of the fuel engine can realize the smooth start of the engine in the environment where the engine cannot be started normally, and it is beneficial to reduce the quality and cost of the whole vehicle, and improve the success rate of engine start.

Description

technical field [0001] The present invention relates to the technical field of engine starting, in particular to an engine starting method, an engine starting control system and a hybrid construction machine. Background technique [0002] The general working principle of the fuel engine starting system is: after the driver presses the start button, the motor first starts to run, the clutch is closed, the transfer case operates, the generator is driven by the power of the system, and generates three-phase alternating current. The device is converted into direct current to charge the battery. In the high and cold working conditions of the plateau, the traditional fuel engine has thin oxygen, insufficient fuel combustion, reduced power, and increased oil viscosity, which increases the starting load, and is prone to difficult starting problems. [0003] In the current market, auxiliary heating facilities are generally used for high altitude and cold conditions. The engine, fuel...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an engine starting method, an engine starting control system and a hybrid engineering machine, which are used to solve or at least partially improve the problem of difficulty in starting a traditional fuel engine in a plateau and cold area, and to realize smooth engine start in a plateau and cold area.

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