Distributed three-shaft driving hybrid power system

Abstract

The invention relates to a distributed three-shaft driving hybrid power system. The system comprises an engine power assembly, a first motor power assembly, a second motor power assembly, a battery and a whole vehicle controller; the output end of the engine is sequentially connected with a second variator, a second main reducer and a second differential; the output end of a first motor is connected with a first differential through a first variator and a first main reducer; the output end of a second motor is connected with a third differential through a third variator and a third main reducer; the engine drives a center shaft, a front shaft is driven by the first motor and a rear shaft is driven by the second motor; a pure electric front-and-rear shaft driving mode, an engine center shaft driving mode, a full-time six-wheel driving mode, a braking energy recovery mode and a parking charging mode are achieved by the whole vehicle. The power system is mainly applied to large three-shaft mining self-unloading vehicles, the performance is safe and reliable, the motors or the engine separately or cooperatively operate in perspective efficient intervals, the efficiency of the power system is improved, and the energy utilization rate is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle power drive systems, in particular to a distributed three-axis drive hybrid power system. Background technique [0002] The world is developing more and more rapidly, the demand for energy is increasing day by day, and the mining of mineral resources is increasing simultaneously. Traditional transport vehicles seem to be powerless in more and more large mine transport operations. Various transport vehicles that are more suitable for large mine sites are gradually appearing in the market, and mining dump trucks are one of the representatives. This kind of transportation vehicle with Chinese characteristics can work calmly in construction sites and mining areas, and has high work efficiency, large load capacity, and can withstand high-intensity operation requirements. [0003] Due to the large size of the mining dump truck and the load capacity of up to 100 tons, when the mining dump truck is in th...

AI Technical Summary

Problems solved by technology

This type of driving system is heavy, requires high power and torque of the engine, and has high production costs, and it is difficult to balance the power and economy of the vehicle.

Moreover, the driving surface of mining dump trucks is complex and changeable, and the adhesion coefficients of the road surfaces on which the wheels are located are often inconsistent, and the wheels are prone to driving slippage.

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