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Engine overspeed protection control method, device and system, and storage medium

An engine overspeed and protection control technology, applied in engine control, machine/engine, electrical control, etc., can solve the problems of increasing the main braking load and reducing the engine speed, so as to reduce the main braking load, protect the engine, and respond directly Effect

Pending Publication Date: 2021-08-03
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using the main brake (brake) to reduce the engine speed by reducing fuel will increase the load on the main brake

Method used

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  • Engine overspeed protection control method, device and system, and storage medium
  • Engine overspeed protection control method, device and system, and storage medium

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0045] The flow charts shown in the drawings are just illustrations, and do not necessarily include all contents and operations / steps, nor must they be performed in the order described. For example, some operations / steps can be decomposed, combined or partly combined, so the actual order of execution may be changed according to the actual situation.

[0046] Example embodiments will now be described more fully with reference to the accompanying drawings. Example e...

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Abstract

The invention discloses an engine overspeed protection control method, device and system, and a storage medium, and relates to the technical field of engine control. The engine overspeed protection control method comprises the following steps: judging whether the collected engine rotating speed exceeds a preset engine overspeed protection threshold value or not; when the engine overspeed protection threshold value is exceeded, determining whether a brake pedal is stepped on or not; and when the brake pedal is stepped on, activating engine auxiliary braking, so that the engine rotating speed is reduced. By calling engine auxiliary braking, the engine rotating speed can be directly controlled at the engine end, the main braking load is reduced, and the response is more direct.

Description

technical field [0001] The invention relates to the technical field of engine control, in particular to an engine overspeed protection control method, device, storage medium and system. Background technique [0002] The engine is a device that provides power for the car, which determines the power, economy, stability and environmental protection of the car. According to different power sources, car engines can be divided into diesel engines, gasoline engines, electric vehicle motors and hybrid engines. [0003] When the car is running, the phenomenon of engine overspeed often occurs, which not only damages the engine, but also is extremely unsafe for users. The overspeed protection device is a device that automatically cuts off the fuel supply of the engine and makes the engine exit the overspeed state when the engine overspeeds due to technical failure, thereby protecting the engine. At present, overspeed protection devices have been widely used in generator sets and other...

Claims

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Application Information

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IPC IPC(8): F02D41/12F02D45/00
CPCF02D41/12F02D45/00
Inventor 李小龙
Owner DONGFENG COMML VEHICLE CO LTD