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Engine overspeed protection control method and device and vehicle

A technology of engine overspeed protection and control, which is applied in engine control, combustion engine, machine/engine, etc., can solve the problems that the judgment of starting overspeed protection control is not very reasonable and affects the normal driving of the vehicle, etc., so as to achieve reliable judgment basis and strong practicability , The effect of reducing the probability of misoperation

Active Publication Date: 2021-06-01
SANY AUTOMOBILE HOISTING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still deficiencies in the existing engine overspeed protection, for example, the judgment of starting the overspeed protection control is not very reasonable, which may affect the normal driving of the vehicle

Method used

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  • Engine overspeed protection control method and device and vehicle
  • Engine overspeed protection control method and device and vehicle

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Embodiment Construction

[0044] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0045] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; either directly or indirectly through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0046] In the description of this specification, descriptions referring to the terms "an embodiment", "an embodiment", "some implementations", "exemplarily" and "an implementation" etc. mean that descriptions are made in conjunction wi...

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Abstract

The invention provides an engine overspeed protection control method and device and a vehicle, and relates to the technical field of engine overspeed protection. The engine overspeed protection control method is applied to an engine overspeed protection system and comprises the following steps that the rotating speed and the rotating speed acceleration of an engine are obtained; when the rotating speed is within a preset rotating speed range and the rotating speed acceleration is greater than or equal to a second rotating speed acceleration threshold value, detection data of a first position sensor at the position of an accelerator pedal is obtained; and according to the detection data, whether overspeed protection control is carried out on the engine overspeed protection system or not is determined. According to the engine overspeed protection control method, the reason that the rotating speed acceleration of the engine is higher can be judged to a certain extent according to the detection data of the first position sensor at the accelerator pedal position, and overspeed of the engine can be predicted to a certain extent, so that overspeed protection is carried out on the engine.

Description

technical field [0001] The invention relates to the technical field of engine overspeed protection, in particular to an engine overspeed protection control method, control device and vehicle. Background technique [0002] When the vehicle is running, the engine may overspeed. Engine overspeed will not only cause damage to the engine and its accessories, such as damage to the valve mechanism, piston head and other parts, affect the service life of the engine, and may also cause the vehicle to lose control, etc. situation, which poses a great security risk. [0003] For example, in a vehicle equipped with a manual gearbox, the anti-drag torque generated by the inertia and friction of the rotating parts of the engine may be used to reduce the speed of the vehicle (at this time, the engine injector stops injecting oil, which can reduce fuel consumption. At the same time, due to the greater anti-drag torque of the low gear, in order to obtain a more obvious deceleration effect, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D13/04F02D9/06F02D29/02F02D31/00B60W10/06B60W10/18B60W30/00
CPCF02D13/04F02D9/06F02D31/001F02D29/02B60W30/00B60W10/06B60W10/18F02D2250/24F02D2200/101F02D2200/1012F02D2200/602B60W2510/0638B60W2510/0652B60W2510/0604B60W2710/18B60W2710/0644Y02T10/40
Inventor 宋宇胡西云杨绍云
Owner SANY AUTOMOBILE HOISTING MACHINERY
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