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Engine starting method and device

A technology of engine starting and starting method, which is applied in the direction of engine control, machine/engine, mechanical equipment, etc., and can solve problems such as difficulty in starting the engine at low temperature

Pending Publication Date: 2022-04-15
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a method for starting an engine, which is used to solve the problem of difficulty in starting the engine at low temperature and improve the efficiency of starting the engine at low temperature

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Embodiment Construction

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the application clearer, the technical solutions of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are the Some embodiments of the technical solution, but not all embodiments. Based on the embodiments described in the application documents, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the technical solutions of the present application.

[0054]The terms "first" and "second" in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the term "comprises", as well as any variations thereof, is intended to cover non-exclusive protections. For examp...

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Abstract

The invention discloses an engine starting method and device which are used for solving the problem that low-temperature starting of an engine is difficult and improving the low-temperature starting efficiency of the engine. The method comprises the steps that when an engine is started, the current rotating speed of the engine is obtained as a first rotating speed, and the current starting temperature of the engine is obtained as a first temperature; the starting temperature is inversely proportional to the duration of starting the engine; determining a first oil quantity corresponding to the first rotating speed and the first temperature according to a first preset relation; the first preset relation is a corresponding relation among the rotating speed, the starting temperature and the oil quantity; determining a second oil quantity corresponding to the first rotating speed according to a second preset relation; the second preset relation is a corresponding relation between the rotating speed and the oil quantity; and starting the engine according to the first oil quantity and the second oil quantity.

Description

technical field [0001] The present application relates to the technical field of engine control, in particular to an engine starting method and device. Background technique [0002] With the wide application of engines, it is very important for customers to solve engine failures in time. Since the viscosity of the engine oil will increase with the decrease of temperature, thereby increasing the frictional resistance of the engine and reducing its rotation speed, the amount of oil (diesel or gasoline, etc.) that needs to be consumed to start the engine at low temperature is more. However, when the engine is started, it is in a low-speed state, and the supercharger has insufficient air intake under the low-speed state, so the amount of oil injected into the cylinder is limited under the low-speed state, and the limited amount of oil cannot guarantee the normal starting of the engine at low temperature. [0003] In order to solve the above problems, it is proposed in the relat...

Claims

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Application Information

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IPC IPC(8): F02D41/06
CPCY02T10/40
Inventor 王刚张宏涛安然李同楠
Owner WEICHAI POWER CO LTD