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Propulsion system, energy management system and method

An energy management system and energy-based technology, applied in the field of energy management systems, can solve the problems of low efficiency of vehicle drive system, low utilization rate of energy-based power supply and power-based power supply, etc., to improve energy utilization efficiency, reduce energy loss, increase The effect of driving distance

Active Publication Date: 2018-05-22
GENERAL ELECTRIC CO
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Under this energy management method, the utilization rate of energy-type power supply and power-type power supply is low, and the efficiency of vehicle drive system is low

Method used

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  • Propulsion system, energy management system and method
  • Propulsion system, energy management system and method
  • Propulsion system, energy management system and method

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Embodiment Construction

[0034] Specific implementations of the present invention will be described below. It should be noted that in the process of specific descriptions of these implementations, for the sake of concise description, it is impossible for this specification to describe all the features of the actual implementations in detail. It should be understood that, in the actual implementation process of any embodiment, just like in the process of any engineering project or design project, in order to achieve the developer's specific goals and to meet system-related or business-related constraints, Often a variety of specific decisions are made, and this can vary from one implementation to another. In addition, it will be appreciated that while such development efforts may be complex and lengthy, the technology disclosed in this disclosure will be Some design, manufacturing or production changes based on the content are just conventional technical means, and should not be interpreted as insuffic...

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Abstract

An energy management system includes a first electric energy converter with one or more first bridge arm circuits, a second electric energy converter with one or more second bridge arm circuits, and a control device. One or more first bridge arm circuits are electrically coupled to the energy-type power supply, and one or more second bridge arm circuits are electrically coupled to the power-type power supply. The control device is used to control the first and second electric energy converters to work in at least two of the following situations when the traction device is in the driving mode: when the positive demand power of the traction device is less than or equal to the positive threshold power, the first electric energy converter is activated Some or all of the first bridge arm circuits and disable all the second bridge arm circuits in the second power converter; when the positive demand power is greater than the positive threshold power, enable some or all of the first bridge arm circuits in the first power converter circuit and enable part or all of the second bridge arm circuit in the second electric energy converter. The invention also provides an energy management method and a propulsion system.

Description

technical field [0001] The invention relates to a propulsion system, in particular to a propulsion system, an energy management system and a method including an energy-type power supply and a power-type power supply to provide power to a vehicle. Background technique [0002] Energy-type power sources (such as batteries) and power-type power sources (such as supercapacitors) are generally used in electric vehicles or hybrid vehicles to provide power to traction devices and capture regenerative energy. In the driving mode of the vehicle (for example, when stepping on the accelerator to accelerate), the energy-type power supply cannot provide high power in an instant, but the power-type power supply can provide high power in an instant, so it can meet the instantaneous high-power demand of the vehicle. In the regenerative braking mode of the vehicle (such as braking and deceleration), the energy-type power supply cannot absorb energy quickly and has low efficiency due to large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L11/18
CPCB60L2240/423B60L2240/547B60L50/40B60L58/20B60L7/16Y02T10/64Y02T10/70
Inventor 高金萍邱海赵彤许飞佘宏武
Owner GENERAL ELECTRIC CO
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