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Compressor refrigerating system and method of electric automobile

A technology of electric vehicles and refrigeration systems, which is applied to vehicle components, heating/cooling equipment, transportation and packaging, etc., and can solve problems such as uneven distribution of cooling capacity and large power consumption

Active Publication Date: 2021-02-02
摩登汽车(盐城)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the compressor refrigeration system of electric vehicles consumes a lot of electricity and the cooling capacity is not evenly distributed in the prior art

Method used

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  • Compressor refrigerating system and method of electric automobile
  • Compressor refrigerating system and method of electric automobile
  • Compressor refrigerating system and method of electric automobile

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Embodiment Construction

[0099]The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be presented in conjunction with a preferred embodiment, it does not mean that the features of the invention are limited to this embodiment. On the contrary, the purpose of introducing the invention in conjunction with the embodiments is to cover other options or modifications that may be extended based on the claims of the present invention. The following description contains numerous specific details in order to provide a thorough understanding of the present invention. The invention may also be practiced without these details. Also, some specific details will be omitted from the description in order to avoid obscuring or obscuring the gist of the present inventi...

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Abstract

The invention provides a compressor refrigeration system and method of an electric automobile, and the system comprises a control device, a compressor refrigeration unit, an air conditioning unit, a battery cooling unit, an in-automobile temperature sensor, and a battery pack temperature sensor. The control device controls opening / closing of the mechanical expansion valve according to the temperature in the passenger compartment and controls the opening degree of the electronic expansion valve according to the temperature of the battery pack. The method comprises the steps: determining the working condition and the total refrigerating capacity requirement of the electric vehicle; and determining the refrigeration priority of the passenger compartment and the battery pack, and controlling the opening degree of the electronic expansion valve of the battery cooling unit, the rotating speed of a water pump and / or the rotating speed of an air blower of an air conditioning unit of the electric automobile according to the refrigeration priority, the temperature of the battery pack of the electric automobile and the total refrigerating capacity requirement. According to the scheme, openingand closing are achieved through the mechanical expansion valve, and the opening degree of the electronic expansion valve is adjustable, so that the requirements for air conditioner refrigeration andbattery refrigeration are effectively met while the design cost is reduced and the endurance mileage of the electric automobile is guaranteed.

Description

technical field [0001] The invention relates to the technical field of electric vehicle compressors, in particular to a compressor refrigeration system and method for electric vehicles. Background technique [0002] With the popularity of electric vehicles, users' requirements for the cruising range and riding comfort of electric vehicles are also increasing. The temperature of the battery pack and the temperature in the passenger compartment are key factors affecting the cruising range and ride comfort of electric vehicles. In order to meet the temperature requirements of the battery pack during operation and the temperature demand in the passenger compartment, it is usually necessary to set up a compressor refrigeration system to distribute the cooling capacity to the battery pack and the air conditioning unit. [0003] The compressor cooling system of the existing electric vehicle needs to be equipped with at least one compressor with sufficient cooling power to meet the...

Claims

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Application Information

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IPC IPC(8): B60H1/32
CPCB60H1/3211
Inventor 姜剑
Owner 摩登汽车(盐城)有限公司
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