Power control method based on hybrid power source for hybrid power

Abstract

The invention belongs to the technical field of drive control over hybrid power vehicles, and particularly relates to a power control method based on a hybrid power source for hybrid power. According to the technical scheme, when a vehicle accelerates urgently, the high instantaneous power is provided according to the advantage that the specific power of a supercapacitor is high, the response characteristic of the hybrid power source can be improved, the magnitude of discharging currents of a battery can be reduced, and damage to the battery is reduced; when the deceleration of the vehicle is high, and the high braking power is needed, most of braking energy is absorbed through the supercapacitor, and the magnitude of charging currents for the battery is reduced; the recovery ratio of the braking energy can be increased, and the service life of the battery can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of drive control of hybrid vehicles, and in particular relates to a power control method based on a composite power supply for hybrid vehicles. Background technique [0002] Traditional armored vehicles use diesel engines as power, which can meet most of the needs of armored vehicles. However, armored vehicles entering air-raid shelters and other poorly ventilated areas require vehicles to achieve zero emissions, so as to prevent the huge emissions and low emission quality of armored vehicles from affecting air quality and causing CO poisoning. Moreover, sometimes armored vehicles have a high demand for stealth. The use of pure electric driving for armored vehicles can greatly reduce the infrared and noise radiation of the vehicle, which is conducive to avoiding infrared detection and noise search. All of these have raised the demand for the use of electric drive for armored vehicles. However, in view of t...

AI Technical Summary

Problems solved by technology

This high power limitation reduces the efficiency of the hybrid system design and cannot meet the short-term power requirements of HEVs

If this power limitation is compensated by increasing the amount of energy storage, it will inevitably increase the cost and weight of the HEV

At the same time, high current charging and discharging will also affect the life of the battery, especially when regenerative braking energy is recovered, the charging efficiency of the battery is low, especially the high current charging, which leads to a greatly shortened cycle life

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