Hybrid power source for hybrid power

A composite power supply and hybrid power technology, which is applied in the direction of electric circuits or fluid pipelines, efficient vehicle charging, road transportation emission reduction, etc., can solve the short-term power demand of HEV, increase the cost and weight of HEV, and reduce hybrid power System efficiency and other issues to achieve the effect of reducing damage, increasing the proportion of recovery, and increasing the service life

Active Publication Date: 2014-05-21
CHINA NORTH VEHICLE RES INST
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  • Abstract
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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

Method used

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Embodiment Construction

[0015] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] In order to solve the problems of the prior art, the present invention provides a composite power supply for hybrid power, such as figure 1 As shown, the composite power supply includes: a power battery, a supercapacitor, a bidirectional DC / DC converter, an inverter, a battery management system, a capacitor management system, and a multi-energy controller;

[0017] The multi-energy controller is respectively connected to the battery management system and the capacitor management system through the CAN bus, and the capacitor management system is respectively connected to the bidirectional DC / DC converter and the supercapacitor through the CAN bus, and the supercapacitor and the bidirectional DC / DC converter conne...

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Abstract

The invention belongs to the technical field of drive control over hybrid power vehicles, and particularly relates to 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 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 the low energy storage density of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/03
CPCY02T10/92
Inventor 郑洁高峰李申刘胜利张思宁李晓多戚于飞兰治军蒋任君李艳明
Owner CHINA NORTH VEHICLE RES INST
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