A plug-in hybrid electric vehicle thermal management system

A technology of hybrid electric vehicles and thermal management systems, applied in the field of thermal management systems, can solve problems such as large frictional resistance, low viscosity of lubricating oil, affecting vehicle economy and emission performance, and achieve the effect of increasing temperature

Active Publication Date: 2022-07-08
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat from other heat-generating components is not fully utilized to preheat the engine, and the maximum utilization of thermal management resources is not reached. When the engine restarts, the viscosity of the lubricating oil is low, the friction resistance is too large, and the fuel injection volume increases, which affects the overall vehicle economy. performance and emissions

Method used

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  • A plug-in hybrid electric vehicle thermal management system
  • A plug-in hybrid electric vehicle thermal management system
  • A plug-in hybrid electric vehicle thermal management system

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Embodiment Construction

[0039] The specific embodiments of the present invention are further described below with reference to the accompanying drawings. This embodiment takes the integration of the engine cooling system, the motor cooling system and the battery cooling system as an example. Other cooling systems such as the battery controller cooling system, The integration of motor controller cooling systems etc. is similar:

[0040] This embodiment provides a vehicle thermal management system for a plug-in hybrid electric vehicle, which uses an integrated heat exchanger to connect multiple independent systems in parallel with each other, and adjusts the temperature of each system by adjusting the flow of coolant through multiple three-way control valves . The specific implementation is as follows:

[0041] The structure of the thermal management system of the plug-in hybrid electric vehicle in this embodiment is as follows: figure 1 As shown, the core component is the integrated heat exchanger 4...

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Abstract

The invention provides a plug-in hybrid vehicle thermal management system, which integrates the independent engine cooling system, motor cooling system, battery cooling system, battery controller cooling system, etc. in the plug-in hybrid vehicle by means of integrated heat exchangers. Relevant systems are integrated into a whole thermal management system, using an integrated heat exchanger as the core heat exchange structure, and using multiple cooling circulation paths to conduct monitoring of engine oil, engine coolant, battery cooling system, battery controller cooling system, and motor cooling system. Heat exchange to achieve the optimal working temperature of each system. The invention makes full use of the waste heat generated by the operation of the engine, the waste heat generated by the battery discharge operation, and the waste heat generated by the heat dissipation of the motor operation, so that the energy of each system in the whole vehicle can be reasonably recycled and utilized, thereby saving energy and improving the efficiency of the vehicle thermal management system. the goal of.

Description

technical field [0001] The patent of the invention belongs to the field of automobile parts, and particularly relates to a thermal management system used in a plug-in hybrid electric vehicle. Background technique [0002] With the depletion of global oil resources and strict national emission regulations, due to the deep awareness of environmental protection, the state has encouraged the development of new energy vehicles in order to control the traditional fuel consumption of the whole vehicle. Resources, clean and pollution-free, supported and promoted by the state, hybrid vehicles, pure electric vehicles, plug-in hybrid vehicles and other types of vehicles have been launched in the domestic market. At present, plug-in hybrid vehicles in the domestic market, as a kind of new energy vehicles, are becoming more and more popular due to their features such as seamless switching between pure electric and fuel operation, long mileage, little limitation due to insufficient chargi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K11/02B60L58/26B60L58/27
CPCY02T10/70
Inventor 郑伟伏蓉余训闵龙李勇胡文薇夏雨贺蓉城
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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