Power distribution method of pure electric vehicle

A pure electric vehicle and distribution method technology, applied in the field of energy management of pure electric vehicles, can solve problems affecting power performance and economic performance, fixed control rules, etc., and achieve the effect of improving power performance and economic performance and reducing energy consumption rate

Pending Publication Date: 2020-10-27
的卢技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the energy management of electric vehicles adopts the method of threshold value control. Although the control is simple and reliable, the control rules are fixed, which cannot optimally solve the power distribution problem, and affect the power performance and economic performance.

Method used

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  • Power distribution method of pure electric vehicle
  • Power distribution method of pure electric vehicle
  • Power distribution method of pure electric vehicle

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Embodiment Construction

[0055] The invention will be described in further detail below in conjunction with the accompanying drawings.

[0056] like figure 1 As shown, the power consumption devices of pure electric vehicles mainly include air conditioners, motors, thermal management, and low-voltage power consumption systems; the energy management system adjusts the power of the air conditioner according to the available power of the battery and the power required by the motor to meet the power and economic needs of power performance. The power management controller acts as the central control unit of the power / energy management and distribution system, responsible for directing, controlling and coordinating the various components. The power management controller communicates with all power converters and power control units by sending control commands and receiving sensor signals and status reports from these devices. It also communicates with the vehicle system controller to enable interaction with...

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Abstract

The invention discloses a power distribution method of a pure electric vehicle, and belongs to the technical field of pure electric vehicle energy management. The method comprises the following steps:1, establishing a control model; 2, defining a fuzzy subset; 3, determining a membership function; 4, formulating an inference rule; 5, selecting an inference method; and 6, selecting an ambiguity resolution method. In the invention, a cycle energy consumption rate of a whole vehicle working condition is effectively reduced, available output power of a power system is optimized, and long-time cycle power performance and economic performance of the whole vehicle are improved on the premise of not increasing or decreasing overall energy of a power battery.

Description

technical field [0001] The invention relates to a power distribution method of a pure electric vehicle, belonging to the technical field of energy management of pure electric vehicles. Background technique [0002] It is a software and hardware system for coordinating, distributing and controlling the working energy of the energy conversion device of the electric vehicle power system. The hardware of the energy management system is composed of a series of sensors, control unit ECU and executive components, etc. The function of the software system is mainly to analyze and process the signals of the sensors, optimize and analyze the working energy of the energy conversion device, and issue instructions to the executive components . Therefore, it can be said that the function of the electric vehicle energy management system is to achieve energy efficiency according to the characteristics of each component and the operating conditions of the vehicle under the premise of meeting...

Claims

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Application Information

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IPC IPC(8): B60L15/20B60L58/24B60L58/12B60L1/00
CPCB60L1/00B60L15/20B60L58/12B60L58/24Y02T10/70Y02T10/72
Inventor 徐雷鸣薛斌其他发明人请求不公开姓名
Owner 的卢技术有限公司
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