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Engine thermal management method and system of extended-range automobile and automobile

An engine and range-extending technology, applied to engine components, engine cooling, machines/engines, etc., can solve problems such as engine temperature rise, boiling, and coolant cannot flow through, so as to ensure thorough cooling and avoid power reduction.

Inactive Publication Date: 2021-08-31
重庆赛力斯新能源汽车设计院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the linkage between the mechanical water pump and the engine, when the engine stops working, the coolant cannot flow through the radiator in the front cabin, and the temperature of the engine will continue to rise, causing the phenomenon of boiling

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  • Engine thermal management method and system of extended-range automobile and automobile

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Embodiment Construction

[0031] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of methods and apparatus consistent with aspects of the present application as recited in the appended claims.

[0032] Such as figure 1 As shown, this embodiment provides a method for thermal management of an engine of an extended-range vehicle, which mainly includes the following steps:

[0033] Step S1: Obtain the working information and temperature information of the engine;

[0034] Step S2: Identify the state type of the engine according to the working information and temperature information ...

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Abstract

The invention belongs to the technical field of thermal management of automobiles, and particularly relates to an engine thermal management method and system of an extended-range automobile and the automobile. The thermal management method comprises the following steps: obtaining working information and temperature information of an engine; identifying the state type of the engine according to the working information and the temperature information of the engine; and taking corresponding thermal management measures according to the state type. By the adoption of the technical scheme, under the condition that parts of an existing extended-range electric vehicle are not increased, thermal management can be conducted on the engine in the normal working state and the shutdown state, so that the engine is thoroughly cooled, the problems of power reduction, heat damage, cylinder pull and the like caused by the fact that the temperature of the engine is too high are solved, particularly, when the engine is in a shutdown state, a power generator is used for dragging the engine to operate, a water pump works along with the engine, and thus, the engine can be continuously cooled by cooling liquid, and a boiling phenomenon is avoided.

Description

technical field [0001] The present application relates to the technical field of thermal management of automobiles, in particular to an engine thermal management method, a thermal management system and an automobile of a range-extended vehicle. Background technique [0002] During the working process of the engine, part of the energy of the fuel is converted into kinetic energy to provide power for the car; the other part of the energy is discharged into the air with the exhaust gas in the form of heat for dissipation, or transferred to the radiator through the coolant. If the heat of the engine cannot be dissipated in time, it will cause the water temperature of the engine to rise, resulting in a decrease in the power of the engine, and serious problems such as heat damage, cylinder scuffing, and boiling. [0003] The engine cooling method is to drive the coolant to flow through the radiator in the front compartment through the mechanical water pump, and the radiator in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P5/12F01P11/00F01P7/16F01P5/04F01P11/14F01P11/16
CPCF01P5/12F01P11/00F01P7/16F01P5/04F01P11/14F01P11/16F01P2005/046
Inventor 郑登磊刘杰刘小飞
Owner 重庆赛力斯新能源汽车设计院有限公司
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