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Preheating system of engine, control method thereof and vehicle

A control method and engine technology, which are applied in the directions of engine starting, engine cooling, engine components, etc., can solve the problems of high application cost, complex preheating system structure, slow response speed, etc., and achieve low production cost, clear layout, Responsive effect

Inactive Publication Date: 2017-07-07
GREAT WALL MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the structure of the preheating system in the related art is too complex, and th

Method used

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  • Preheating system of engine, control method thereof and vehicle
  • Preheating system of engine, control method thereof and vehicle
  • Preheating system of engine, control method thereof and vehicle

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Embodiment Construction

[0029] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0030] First, the present invention will be described in detail with reference to the drawings and examples.

[0031] When the main valve of the thermostat is opened, the coolant flows in the large circulation loop to quickly reduce the temperature of the engine; when the main valve of the thermostat is closed, the coolant flows in the small circulation loop 130, at this time the coolant Does not flow into the tank.

[0032] Such as Figure 1-Figure 2 As shown, the engine preheating system 100 includes a small circulation loop 130 , a heating unit 110 , a water pump 120 and a flow detection unit 140 .

[0033] Wherein, the heating unit 110 is connected in series in the small circulation loop 130, the heating unit 110 is used to heat the coolant in the small circulation loop 130, the water pump 120 is conne...

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Abstract

The invention discloses a preheating system of an engine, a control method thereof and a vehicle. The preheating system of the engine comprises a small circulation loop, a heating unit, a water pump and a flow detection unit, wherein the heating unit is connected into the small circulation loop in series; the water pump is connected into the small circulation loop is series; and the flow detection unit is used for detecting the flow value of the small circulation loop only when communicating with the small circulation loop. By adopting the preheating system of the engine, the engine heating time of the engine can be effectively shortened; the engine can be preheated when the engine is turned off; preheating efficiency is high; and response speed is high.

Description

technical field [0001] The invention belongs to the technical field of vehicle manufacturing, and in particular relates to an engine preheating system, a control method of the preheating system, and a vehicle provided with the preheating system. Background technique [0002] As a common means of transportation, vehicles bring convenience to people's travel. The engine of the vehicle is the power source of the vehicle, and its working status directly affects the driving performance of the vehicle. [0003] The optimal temperature of the combustion chamber of the engine is closely related to the working conditions of the engine: if the temperature of the combustion chamber is higher than the optimal temperature, it will lead to poor engine emissions, severe engine knocking, and reduced life of parts; if the temperature of the combustion chamber is lower than Optimum temperature will result in poor fuel atomization, incomplete combustion, poor engine emissions, and low thermal ...

Claims

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Application Information

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IPC IPC(8): F02N19/10F01P3/20F01P11/16F01P11/18
CPCF01P3/20F01P11/16F01P11/18F01P2025/64F01P2037/02F01P2070/04F02N19/10
Inventor 李敏泽安树冯冲刘明孙海洋
Owner GREAT WALL MOTOR CO LTD
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