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Control method and control device for thermal management module under engine warm-up working condition

A control method and technology of a control device, applied to the control device of the cooling device, engine cooling, engine components, etc., can solve the problems of reflecting the working state of the engine, the limitation of the accuracy of the thermal management module, etc., and achieve small fluctuations in water temperature and lower cylinder Internal friction, the effect of increasing the heating rate

Active Publication Date: 2021-01-05
DONGFENG MOTOR CORP HUBEI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the ambient temperature and engine water temperature cannot reflect the working state of the engine most truly, and thus have certain limitations on the accuracy of the opening control of the thermal management module.

Method used

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  • Control method and control device for thermal management module under engine warm-up working condition
  • Control method and control device for thermal management module under engine warm-up working condition
  • Control method and control device for thermal management module under engine warm-up working condition

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Embodiment Construction

[0046] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0047] see figure 1 As shown, the embodiment of the present application provides a control method of the thermal management module in the engine warm-up condition, and the control method includes:

[0048] Step S1: Obtain the engine speed and water temperature, and query the corresponding target water temperature according to the prese...

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Abstract

The invention discloses a control method and a control device for a heat management module under an engine warm-up working condition, and relates to the technical field of engine cooling system control. The control method comprises the following steps of obtaining the rotating speed and the water temperature of an engine, and querying the corresponding target water temperature according to a preset engine target water temperature pulse spectrum; and judging whether the engine is in engine cool start or not according to the obtained water temperature and the queried target water temperature, ifyes, obtaining and opening the target opening degree to the heat management module through interval control, and if not, obtaining and opening the target opening degree to the heat management modulethrough PID control. According to the control method and the control device, the operating condition of the engine can be truly reflected, so that the oil consumption is reduced, and the economy of the engine is improved.

Description

technical field [0001] The present application relates to the technical field of engine cooling system control, and in particular to a control method and a control device for a thermal management module in an engine warm-up condition. Background technique [0002] In line with the trend of automobile energy saving and emission reduction, automobile engines gradually use thermal management modules instead of traditional thermostats to control the flow rate of coolant in the circulation branch of the engine cooling system to achieve temperature control to achieve better fuel consumption and emission effects. [0003] Under the limitation of the working principle of the thermostat, when the temperature of the engine cooling system is low, the small circulation is fully opened and the large circulation is fully closed; when the temperature of the engine cooling system rises, the opening of the small circulation is reduced, and the opening of the large circulation is increased. L...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P7/16F01P11/16
CPCF01P7/16F01P11/16F01P2007/146F01P2037/02F01P2050/22
Inventor 熊迪向飞丁伟施发义欧阳丹
Owner DONGFENG MOTOR CORP HUBEI
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