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Control method, device and system for engine temperature

A technology of engine temperature and control method, which is applied in the direction of engine cooling, engine components, machine/engine, etc., and can solve problems such as realizing control of engine temperature that cannot be controlled by coordination

Inactive Publication Date: 2017-01-04
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of this application is to provide an engine temperature control method, device and system to solve the technical problem in the prior art that the components in the cooling system cannot be coordinated and controlled to achieve engine temperature control

Method used

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  • Control method, device and system for engine temperature
  • Control method, device and system for engine temperature
  • Control method, device and system for engine temperature

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Embodiment Construction

[0092] 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.

[0093] In order to realize the coordinated control among various components in the cooling system and to realize the temperature control of the engine, the application can be realized through the following schemes:

[0094] 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:

[0095] Step 201: Obtain the current operating condition param...

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Abstract

The application of the invention discloses a control method, device and system for engine temperature. The method comprises the following steps: obtaining current working condition parameters and current water temperature of an engine; determining a first target water temperature and a second target water temperature which are corresponding to the current working condition parameters, judging whether the current water temperature is lower than the first target water temperature or not; if the current water temperature is lower than the first target water temperature, controlling the opening output duty ratio of a thermostat, making the opening of the thermostat and a first difference value between the first target water temperature and the current water temperature corresponding to enable the current water temperature of the engine to be close to the second target water temperature; if the current water temperature is higher than or equal to the first target water temperature, controlling the opening output duty ratio of the thermostat, making the thermostat in a full open position, and controlling a combined gear of a water pump and a fan to be located in a target gear based on the size relation of the current water temperature and the second target water temperature, to enable the current water temperature of the engine to be close to the second target water temperature.

Description

technical field [0001] The present application relates to the technical field of mechanical control, in particular to a method, device and system for controlling engine temperature. Background technique [0002] 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. [0003] However, there is currently no coordinated control strategy for these cooling components to precisely control the engine temperature, shorten the warm-up time, and achieve energy saving and emission reduction. Contents of the invention [0004] In view of this, the purpose of this application is to provide an engine temperature control method, device and system to solve the technical problem in the prior art that the components in the cooling s...

Claims

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Application Information

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IPC IPC(8): F01P7/16F01P7/04F01P7/08
CPCF01P7/164F01P7/048F01P7/08F01P2050/22
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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