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Engine no-load judgment method and device, motorcycle and storage medium

A judging method and engine technology, applied in the direction of combustion engine, engine control, engine components, etc., can solve the problems that the controller cannot receive the vehicle speed signal, difficult engine no-load working conditions, etc., and achieve the effect of simplifying the structure and saving costs

Active Publication Date: 2020-11-17
JIANGMEN DACHANGJIANG GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the process of realization, the inventor found that there are at least the following problems in the traditional technology: due to the structure and layout of the vehicle, the controller cannot receive the vehicle speed signal, and it is difficult to determine the no-load condition of the engine

Method used

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  • Engine no-load judgment method and device, motorcycle and storage medium
  • Engine no-load judgment method and device, motorcycle and storage medium
  • Engine no-load judgment method and device, motorcycle and storage medium

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Embodiment Construction

[0045] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0046] In one embodiment, such as figure 1 As shown, the engine no-load judgment method is provided, including steps:

[0047] S110, acquire the first crankshaft speed when the engine is in the compression stroke, and the second crankshaft speed when the engine is in the exhaust stroke; the first crankshaft speed includes the first current speed and the first previous speed; the second crankshaft speed includes the second current speed and second previous speed;

[0048] Wherein, the crankshaft speed is the speed at which the crankshaft rotates, which can be expressed as...

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Abstract

The invention relates to an engine no-load judgment method and device, a motorcycle and a storage medium. The engine no-load judgment method comprises the steps that first crankshaft speed when an engine is in a compression stroke, and second crankshaft speed when the engine is in an exhausting stroke are obtained; the first crankshaft speed comprises first current speed and first former speed; the second crankshaft comprises second current speed and second former speed; and if a difference value of the second former speed and the first current speed is larger than a first preset threshold value, and a difference value of the second current speed and the first former speed is larger than a second preset threshold value, it is determined that the engine is in a no-load state. The method canbe applied to a vehicle type using CVT transmission mechanism, under the circumstances of no neutral gear, clutch switch or vehicle speed signal, the no-load working condition of the engine can be judged accurately, hardware like a sensor does not need to be additionally arranged, on the premise of achieving no-load judgment, cost can be saved, and the structure can also be simplified.

Description

technical field [0001] The present application relates to the technical field of engine control, in particular to a method, device, motorcycle and storage medium for judging engine no-load. Background technique [0002] At present, the no-load condition of the engine of a two-wheeled motorcycle using an electronically controlled single-point gasoline injection system outside the cylinder can be judged by a neutral signal, a clutch switch signal, and a vehicle speed signal. [0003] In the process of implementation, the inventor found at least the following problems in the traditional technology: due to the structure and layout of the vehicle, the controller cannot receive the vehicle speed signal, and it is difficult to determine the no-load condition of the engine. Contents of the invention [0004] Based on this, it is necessary to address the above technical problems and provide an engine idling determination method, device, motorcycle and storage medium capable of dete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D29/02F02B77/08
CPCF02D29/02F02B77/08F02D2200/0404F02D2200/021Y02T10/40
Inventor 余华荣
Owner JIANGMEN DACHANGJIANG GROUP CO LTD