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Engine start-stop control method and device

A start-stop control and engine technology, applied in engine control, combustion engine, engine components, etc., can solve problems such as unfavorable energy saving and environmental protection, negative impact on the service life of engine and starter, etc.

Active Publication Date: 2021-03-05
SAIC GENERAL MOTORS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only has a negative impact on the service life of the engine, starter, etc., but is also not conducive to energy saving and environmental protection

Method used

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  • Engine start-stop control method and device
  • Engine start-stop control method and device
  • Engine start-stop control method and device

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Embodiment Construction

[0013] The following is a detailed description of exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. It should be noted that the following description is for the purpose of illustration and illustration, and thus should not be considered as limiting the present invention. Without departing from the principles of the present invention, those skilled in the art may make electrical, mechanical, logical and structural changes to these embodiments according to actual needs, without departing from the scope of the present invention. In addition, those skilled in the art can understand that, for any specific application scenario or actual needs, one or more features of the different embodiments described below can be combined.

[0014] In general, the engine start-stop control method according to an embodiment of the present invention is based on the conventional engine automatic start-stop function control logic, supplemented with...

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Abstract

The invention relates to an engine start-stop control method and device. In one embodiment, the engine start-stop control device comprises an enabling unit, a judgment unit and a shutdown disabling unit, wherein the enabling unit is configured to enable an engine automatic start-stop function; the judgment unit is configured to judge whether the vehicle speed is smaller than a first vehicle speedthreshold value or not and judge whether the duration that the vehicle speed is smaller than the first vehicle speed threshold value is larger than a first time threshold value or not; the shutdown disabling unit is configured to enter a shutdown prohibition judgment state under the condition that the judgment conditions in the judgment unit are judged to be all yes; and in the shutdown prohibition judgment state, a shutdown control parameter is metered and / or calculated, and whether the shutdown of the engine is prohibited due to the automatic engine start-stop function or not is determined based on the shutdown control parameter.

Description

technical field [0001] The present invention generally relates to engine technology, and more particularly, relates to an engine start-stop control method and device. Background technique [0002] The engine automatic start-stop function of the vehicle is a technology widely used in automatic transmission vehicles at present. Usually, its function is to automatically stop the engine when the vehicle brakes and stop, and then automatically start the engine when the brake is released or after a certain period of time. [0003] However, the existing automatic engine start-stop function is too simple and poorly adaptable to complex road conditions. Especially for low-end models, they usually do not have high-end perception systems such as radar, camera, and laser, and corresponding complex decision algorithms, so the automatic engine start and stop function is generally always on (that is, they do not have engine switch for automatic start-stop function). Thus, for example, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N11/08F02D29/02
CPCF02N11/0833F02N11/0837F02D29/02F02D2200/501F02D2200/702Y02T10/40
Inventor 王楠
Owner SAIC GENERAL MOTORS
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