Energy management system and control method thereof

A technology of an energy management system and a control method, which is applied in the energy management system and its control field of the power system of a fuel cell vehicle, and can solve problems such as the decrease of fuel cell life and power battery life, unfavorable stability and application of original energy management algorithms, and insufficient braking energy. Full recovery and other issues to achieve the effect of reducing power fluctuations, improving life, and optimizing the energy management process

Pending Publication Date: 2022-02-18
HUNAN CSR TIMES ELECTRIC VEHICLE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These solutions have the following disadvantages: 1. The braking energy cannot be fully recovered, resulting in energy waste; 2. Although some power devices have the ability to recover braking energy, the load power of the feedback braking energy fluctuates greatly, which is not conducive to the original energy management algorithm. Stable and applicable, resulting in a decrease in fuel cell life and power battery life, and high energy consumption

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  • Energy management system and control method thereof
  • Energy management system and control method thereof
  • Energy management system and control method thereof

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Embodiment Construction

[0024] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples, so as to fully understand and implement the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects. It should be noted that, as long as there is no conflict, each embodiment of the present invention and each feature of each embodiment can be combined with each other, and the formed technical solutions all fall within the protection scope of the present invention.

[0025] Meanwhile, in the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, to those skilled in the art that the present invention may be practiced without the specific details or in the specific manner described herein.

[0026] With the ...

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Abstract

The invention discloses an energy management system and a control method thereof. The energy management system is used for a fuel cell automobile power system and comprises a first-type energy storage device used for absorbing braking energy transmitted from a motor system when an automobile enters an electric braking state, a direct-current voltage converter which is located between the first-type energy storage device and a second-type energy storage device and used for transmitting the braking energy to the second-type energy storage device according to preset power, the second-type energy storage device which is used for absorbing and storing braking energy and providing power needed by vehicle operation for the motor system through cooperation with a fuel cell when the vehicle enters a starting or normal driving state, and a fuel cell. Braking energy can be fully recovered, and the service life and durability of the fuel cell can be improved.

Description

technical field [0001] The present invention relates to the technical field of power electronics, in particular to an energy management system for a fuel cell vehicle power system and a control method thereof. Background technique [0002] With the development of fuel cell vehicle technology, the research of fuel cell vehicle power system has also become the focus. The main goal of the fuel cell vehicle power system is to provide the entire vehicle (vehicle) with all kinds of energy required in the operating states such as starting, running and braking, requiring energy saving and durability. the entire life cycle of the vehicle. [0003] Existing fuel cell vehicle power devices mainly include motors, motor controllers, power batteries, fuel cell systems, etc., and some other fuel cell vehicle power devices also include super capacitors, or directly use super capacitors as power batteries and so on. These schemes have the following disadvantages: 1. The braking energy cann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/10B60L53/00H02J7/34H02J7/00H02J1/10
CPCB60L7/10B60L53/00H02J7/34H02J7/345H02J7/0068H02J1/10H02J1/109H02J2300/30Y02T10/70Y02T10/7072Y02T90/14
Inventor 胡振球黄炫方樊钊彭再武尹志刚张晓龙周华张俊深刘文哲
Owner HUNAN CSR TIMES ELECTRIC VEHICLE
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