Engine intake air heating control method and device and starter

A technology of engine start and starter, applied in the direction of engine start, engine motor start, engine components, etc., can solve problems such as high temperature, hidden safety hazards of burning cars, etc., to eliminate local overheating and avoid local overheating Effect

Active Publication Date: 2019-10-29
WEICHAI POWER CO LTD
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  • Abstract
  • Description
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Problems solved by technology

Therefore, during the intake heating process before the engine starts, the gas in the intake pipe is in a static state and does not flow, so the heating grill can only heat the surrounding gas
[0004] Without starting the engine, if the vehicle is powered on and off many times, it is easy to cause the temperature of the local gas in the intake pipe (that is, the gas around the heating grille) to be too high, which will cause a safety hazard of burning the car

Method used

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  • Engine intake air heating control method and device and starter
  • Engine intake air heating control method and device and starter
  • Engine intake air heating control method and device and starter

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[0033] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0034] The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein and in the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as use...

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Abstract

The invention discloses an engine intake air heating control method. The engine intake air heating control method comprises the steps that the heating time T1 which is required before an engine is started is determined, and the time T2 which is required by the process that the air with the preset volume is heated by a heating grid in an air intake pipe to enable the temperature to be equal to thefirst preset temperature is determined; when the ratio of the T1 to the T2 is larger than the preset value, the circulating heating frequency N is determined according to the ratio; after the heatinggrid is controlled to conduct heating for the T2, a starter is controlled to drive the engine to rotate for the preset time, and the step that after the heating grid is controlled to conduct heating for the T2, the starter is controlled to drive the engine to rotate for the preset time is carried out for N times in a circulating mode; and the heating grid is controlled to conduct heating for (T1-N*T2) again, and the intake air heating process is accomplished. After the surrounding air is heated by the heating grid for the T2 every time, the starter can drive the engine to rotate, the air heated by the heating grid is pushed for a certain distance towards an air cylinder, and therefore the heating grid heats the new air every time, and the problem that the local temperature of the gas is overhigh is solved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an engine air intake heating control method, device and starter. Background technique [0002] At present, before the engine is started under low temperature conditions (referred to as cold start), the intake pipe will be heated for a period of time, that is, after the vehicle is powered on, the ECU (Electronic Control Unit, electronic control unit) controls the heating grill installed on the intake pipe to Gas heating. [0003] Usually the power of the heating grid is relatively large (about 2kW), and in order to ensure that there is enough power for the starter to drive the engine to start normally, the heating grid stops heating (that is, it is not working) during the engine starting process. Therefore, during the intake heating process before the engine starts, the gas in the intake pipe is in a static state and does not flow, so that the heating grill can only heat the surr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M31/13F02N11/08F02N19/04
CPCF02M31/13F02N11/0859F02N11/087F02N19/04F02N2011/0874
Inventor 陈玉杰林旭东张成国李震赵伦卢微微刘丽冉王相豪
Owner WEICHAI POWER CO LTD
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