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Vehicle and gear shifting control method and system for electronic clutch

An electronic clutch and control method technology, applied in the field of vehicles, can solve problems such as clutch ablation and large speed difference, and achieve the effect of reducing ablation

Active Publication Date: 2019-09-13
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of shifting gears, as the gear changes, the transmission ratio of the gearbox will change, so that the two ends of the clutch will produce different speeds. If the two ends of the clutch are controlled to engage at this time, there will be A large speed difference is generated, which is easy to cause ablation of the clutch

Method used

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  • Vehicle and gear shifting control method and system for electronic clutch
  • Vehicle and gear shifting control method and system for electronic clutch
  • Vehicle and gear shifting control method and system for electronic clutch

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Embodiment Construction

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Words such as "first" and "second" mentioned herein are only used to describe two or more structures or components with the same or similar structures, and do not represent any special limitation on the order.

[0029] For a manual transmission car, the shifting process usually includes two steps. One is to switch the shift lever from the current gear to neutral. At this time, the connection between the engine and the gearbox is disconnected, and the engine speed begins to drop. , and because the vehicle speed does not change much, the speed of the gearbox input shaft remains basically unchanged; the second is to switch the shift lever from neutral to the target gear. In this process, if the gear is switched quickly...

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Abstract

The invention discloses a vehicle and a gear shifting control method and system for an electronic clutch. The gear shifting control method for the electronic clutch comprises the following steps thatS1, the gear position obtained after gear shifting as well as the actual rotating speed of an engine and the actual vehicle speed are acquired, and the target rotating speed of the engine is calculated according to the gear position and the actual vehicle speed; S2, the actual rotating speed of the engine is compared with the target rotating speed of the engine, if the difference value between theactual rotating speed of the engine and the target rotating speed of the engine is larger than a first threshold value, S3 is executed, and if the difference value between the actual rotating speed of the engine and the target rotating speed of the engine is smaller than or equal to the first threshold value, S4 is executed; S3, engine rotating speed intervention is performed until the differencevalue between the actual rotating speed of the engine and the target rotating speed of the engine is smaller than or equal to the first threshold value, and then S4 is executed; and S4, the electronic clutch is controlled to be engaged. According to the gear shifting control method for the electronic clutch, the two ends of the electronic clutch can be engaged with a small speed difference in thegear shifting process, and ablation of the electronic clutch is reduced.

Description

technical field [0001] The present invention relates to the technical field of vehicles, in particular to a vehicle, a shift control method and system for an electronic clutch. Background technique [0002] The electronic clutch mainly uses a motor to drive the clutch to operate instead of the traditional pedal control, so as to completely free the driver's left foot and reduce the driver's fatigue during driving. However, in the process of shifting gears, as the gear changes, the transmission ratio of the gearbox will change, so that the two ends of the clutch will produce different speeds. If the two ends of the clutch are controlled to engage at this time, there will be A large speed difference is generated, which is easy to cause ablation of the clutch. [0003] Therefore, how to provide a shift control method for the electronic clutch so that the two ends of the clutch are engaged with a small speed difference during the shift process, thereby reducing the ablation of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/02F16H63/50F16H59/36F16H59/44
CPCF16H59/36F16H59/44F16H61/0213F16H63/502F16H2059/366F16H2063/508
Inventor 王士磊刘凡胡峰
Owner SAIC MOTOR
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