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Engine cooling system and control method

A cooling system and engine technology, applied in engine components, combustion engines, machines/engines, etc., can solve the problems of small engine heat dissipation, increased vehicle fuel consumption, increased noise, etc., to avoid slow or ineffective cooling. problems, the effect of improving accuracy

Active Publication Date: 2021-07-16
ZHONGTONG BUS HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventor believes that when the whole vehicle is in the idling state, the heat dissipation of the engine is relatively small, and if the fan control temperature is the same under the idling state and the running state of the whole vehicle, the fuel consumption and noise of the whole vehicle in the idling state will increase.

Method used

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  • Engine cooling system and control method

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Embodiment 1

[0028] Such as figure 1 As shown, this embodiment provides an engine cooling system, including a controller, a coolant circulation assembly with a radiator, and an air intake assembly with an intercooler. The radiator can dissipate heat through a first fan, and the intercooler can dissipate heat through a second fan. Two fans for heat dissipation.

[0029] It can be understood that the first fan and the second fan in this solution are only used to distinguish, and it does not mean that the structures and sizes of the two fans are the same or different, which can be set by those skilled in the art, and will not be repeated here.

[0030] The coolant circulation assembly and the air intake assembly are respectively provided with temperature sensors, and the controller can collect the engine speed and the temperature information of the temperature sensor, and adjust the speed of the first fan and the second fan, so that the fan speed value is adapted to the The amount of heat to...

Embodiment 2

[0039] The present embodiment provides a method for regulating and controlling engine cooling, utilizing the described engine cooling system, comprising the following steps:

[0040] Set the speed of the engine as N, the temperature of the coolant at the engine liquid inlet as T, and the temperature of the gas at the intake pipe as t. It can be understood that both T and t are used to refer to temperature, and the difference between uppercase and lowercase here is only used to distinguish the temperature of different media.

[0041] Control mode of the first fan:

[0042] When T1 , the first fan reverses to remove dust; T 1 It is the highest ambient temperature for the vehicle to operate. The purpose of setting here is to perform reverse dust removal when the vehicle is started for the first time. At this time, the temperature of the coolant is lower than the local maximum ambient temperature (for example, 45°C), T 1 2 .

[0043] When N1 , if T 1 2 , the first fan does no...

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Abstract

The disclosure relates to an engine heat dissipation system and a control method, including a controller, a coolant circulation assembly with a radiator, and an intake assembly with an intercooler. The radiator can dissipate heat through a first fan, and the intercooler can dissipate heat through a second fan. Fan heat dissipation; the coolant circulation assembly and the air intake assembly are respectively provided with temperature sensors, the controller can collect the engine speed and the temperature information of the temperature sensor, and adjust the speed of the first fan and the second fan, so that the fan speed The value is adapted to the amount of heat to be dissipated in the engine. The present disclosure can adjust the start-stop and rotation speed of the fan according to the coolant temperature at the engine, the air temperature in the intake pipe and the engine speed, and reduce the power consumption of the fan on the premise of meeting the heat dissipation requirement of the engine.

Description

technical field [0001] The disclosure belongs to the technical field of engines, and in particular relates to an engine cooling system and a control method. Background technique [0002] During the development of China VI vehicles, fuel consumption has become a difficult point in the implementation of China VI standards. The National VI standard not only raises the emission requirements a lot, but also requires that the overall fuel consumption of the vehicle is about 12% lower than that of the National V. As a result, many vehicles now meet the emission standards but the fuel consumption cannot meet the fuel consumption limit. [0003] For the engine, how to keep the coolant in the engine and the intake air temperature in the most suitable range at all times without consuming too much engine power is an important measure to reduce the fuel consumption of the engine. [0004] The inventor thinks that when the whole vehicle is in the idling state, the heat dissipation of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01P3/20F01P5/02F01P5/10F01P7/04F01P7/08F01P7/16F02B29/04F02M35/10
CPCF01P3/20F01P5/02F01P5/10F01P7/04F01P7/08F01P7/16F02B29/0406F02B29/0493F02M35/10006F02M35/10157Y02T10/12
Inventor 杨彦三于文尚孟国庆王攀周后昌邢占斌
Owner ZHONGTONG BUS HLDG
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