Hybrid power system of vehicle, vehicle and control method thereof

A technology of a hybrid power system and a control method, applied in the field of vehicles, can solve the problems of low motor power, short cycle life, limited engine speed, etc., and achieve the effects of prolonging the service life, simple transformation, and simple realization.

Inactive Publication Date: 2018-12-21
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Abstract
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Problems solved by technology

The disadvantage of this type of battery is that the battery itself has low safety, low power density and short cycle life.
Due to the low power density of the battery itself and the relatively low cycle life of the battery, these two shortcomings directly lead to the fact that the existing technology rarely has the braking energy recovery function, resulting in a waste of some energy; the problem of low battery power is also The optimization and development of the entire system structure is limited. Due to the limited power provided by the battery, the power of the supporting motor is relatively small. Fuel combustion is not sufficient at high speeds, causing pollution

Method used

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  • Hybrid power system of vehicle, vehicle and control method thereof

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Embodiment Construction

[0029] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation. In the description of the present invention, it should be noted that, figure 1 "-----" means CAN bus, Indicates shaft connection, "—" indicates electrical connection.

[0030] Such as figure 1 As shown, a vehicle hybrid power system includes a battery 11, a starter 12, an engine 13 and a vehicle controller 14, and the vehicle controller 14 is connected to the starter 12, the battery 11 and the engine respectively. 13 network connection, the battery 11 is electrically connected to the starter 12, the starter 12 is belt-connected to the engine 13, and the vehicle controller 14 is used to control the battery 11 as the starter 12 Power supply to make the engine 13 reach the designated speed w...

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Abstract

A vehicle hybrid system, vehicle and control method, including ISG motors, bidirectional inverter, bidirectional DC / DC converter, super capacitor module / lithium capacitor module and Vehicle Controller, the ISG motor is connected with the engine shaft, the vehicle controller and the ISG motor, the bidirectional inverter, The bi-directional DC / DC converter is connected with the super capacitor module / lithium capacitor module, the bi-directional inverter is connected with the ISG motor and the super capacitor module / lithium capacitor module, and the bi-directional DC / DC converter is connected with the super capacitor module / lithium capacitor module and the battery. As that super capacitor module / lithium capacitor module of the invention has high power correspond speed, fast storage and discharge of electric energy can be realized, and the storage battery is only used as storage of electric energy and does not carry out high-power charge and discharge, thereby prolonging the life of the storage battery.

Description

technical field [0001] The invention belongs to the field of vehicle technology, and in particular relates to a vehicle hybrid power system, a vehicle and a control method. Background technique [0002] In the prior art, 48V systems mostly use lead-acid batteries, and some use lithium batteries. The disadvantage of this type of battery is that the battery itself has low safety, low power density and short cycle life. Due to the low power density of the battery itself and the relatively low cycle life of the battery, these two shortcomings directly lead to the fact that the existing technology rarely has the braking energy recovery function, resulting in a waste of some energy; the problem of low battery power is also The optimization and development of the entire system structure is limited. Due to the limited power provided by the battery, the power of the supporting motor is relatively small. Fuel combustion is not sufficient at high speeds, causing pollution. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60L7/10
CPCB60L7/10B60W20/00Y02T10/72
Inventor 张杰家梁亚军刘春欢冯冬冬
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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