Engine temperature control method and system

A technology of engine temperature and control method, applied in the direction of engine cooling, engine components, machine/engine, etc., can solve the problem of uncontrollable engine temperature, etc., and achieve the effect of temperature control

Inactive Publication Date: 2018-02-23
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the purpose of this application is to provide a method and system for controlling engine temperature to solve the technical problem in the prior art that the components in the cooling system cannot be controlled to achieve engine temperature control

Method used

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  • Engine temperature control method and system
  • Engine temperature control method and system

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Embodiment Construction

[0060] figure 1 Shown is a schematic layout of the individual components of the cooling system in the engine. The engine may be a diesel engine or a gasoline engine or the like. The components in the cooling system include at least: thermostat, water pump and fan. In this embodiment, the thermostat can be a paraffin-type electronically controlled thermostat, and both the water pump and the fan can be electronically controlled. The operation of the thermostat, water pump and fan cools the engine down.

[0061] In this application, in order to realize the operation control of each component in the cooling system, or even the coordinated control between each component, to realize the temperature control of the engine, it can be realized through the following scheme:

[0062] figure 2 Shown is a flow chart for realizing the control of the water temperature of the engine provided by the embodiment of the present application, which may include the following steps:

[0063] Ste...

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Abstract

The invention discloses an engine temperature control method, device and system. The engine temperature control method comprises the steps of obtaining the current working condition parameter and current water temperature of an engine, specifically, a cooling system of the engine at least comprises a cooling component, namely a thermostat; determining a first target water temperature and a secondtarget water temperature corresponding to the current working condition parameter, specifically, the first target water temperature is a water temperature which the engine needs to reach when the thermostat is completely started, and the second target water temperature is a water temperature at which the engine needs to be kept; judging whether auxiliary braking is started for the engine or not; if yes, controlling the opening degree output duty ratio of the thermostat and enabling the thermostat to be in the completely open position; and if not, controlling the opening degree output duty ratio of the thermostat based on the first different value between the first target water temperature and the current water temperature, and enabling the current water temperature of the engine to approach the second target water temperature.

Description

[0001] This application claims the priority of the Chinese patent application submitted to the China Patent Office on October 19, 2016, with the application number 201610910948.X, and the title of the invention is "A method, device and system for controlling engine temperature", the entire content of which is passed References are incorporated in this application. technical field [0002] The present application relates to the technical field of mechanical control, in particular to a method and system for controlling engine temperature. Background technique [0003] With the development of technology, intelligent cooling system core components such as electronically controlled thermostats, electronically controlled water pumps and electronically controlled fans are applied to the engines of vehicles and other equipment to achieve energy saving and emission reduction of engines. [0004] However, there is currently no control strategy for these cooling components to precisely...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P7/16F01P7/04F01P7/08
CPCF01P7/048F01P7/08F01P7/164F01P2050/22
Inventor 王贵琛么丽丽董晓彬樊京元徐胜辉
Owner WEICHAI POWER CO LTD
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