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Thermal management system of hybrid electric vehicle

A technology of hybrid electric vehicle and thermal management system, applied in the field of thermal management system, can solve problems such as reducing engine emissions, and achieve the effect of reducing emissions, fuel consumption, and good fuel mixing

Active Publication Date: 2021-03-30
UNITED AUTOMOTIVE ELECTRONICS SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to reduce engine emissions (especially cold engine emissions) through traditional engine optimization strategies

Method used

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  • Thermal management system of hybrid electric vehicle

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Embodiment Construction

[0025] The heat management system of the hybrid electric vehicle of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description and accompanying drawings, the advantages and characteristics of the present invention will be clearer, however, it should be noted that the concept of the technical solution of the present invention can be implemented in many different forms, and is not limited to the specific implementation set forth herein. example. The drawings are all in very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0026] The terms "first", "second", etc. in the description and claims are used to distinguish between similar elements and not necessarily to describe a specific order or chronological order. It is to be understood that the terms s...

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Abstract

The invention provides a thermal management system of a hybrid electric vehicle. An electric compressor of a heat pump air-conditioning system of the hybrid electric vehicle is connected with a battery pack, and a ventilating duct is arranged between the heat pump air-conditioning system and an engine so that the energy of the battery pack of the hybrid electric vehicle is fully utilized while theoriginal functions of a hybrid power heat pump are ensured at the initial stage of starting the whole vehicle; and a pure electric driving mode is adopted to start heating circulation of the electriccompressor and the heat pump air-conditioning system so as to heat inlet air of the engine, fuel oil is better mixed in an engine starting stage and a catalyst heating stage, and therefore engine emission and oil consumption are reduced.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to a thermal management system of a hybrid vehicle for reducing engine cold start emission and fuel consumption. Background technique [0002] GB18352.5 Light Vehicle Pollutant Emission Limits and Measurement Methods and GB / T19233 Light Vehicle Fuel Consumption Test Method both use the NEDC (New Europe Driving Cycle) test cycle. In the National VI stage, the working conditions will use the WLTC (Worldwide-harmonized Light vehicles Test Cycle) test cycle. In addition, the existing vehicle energy consumption and emission tests are mostly carried out on the rotating hub. Due to the limitations of the rotating hub test in simulating the actual road load and setting of environmental parameters, the actual road emissions of the vehicle cannot be effectively controlled. In response to this problem, Europe has proposed the RDE (Real Driving Emission) test, which is to measure the emissio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00F02M35/10
CPCB60H1/004B60H1/00564F02M35/10268Y02T10/62
Inventor 付乐中陈宇清沈利芳
Owner UNITED AUTOMOTIVE ELECTRONICS SYST