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2-speed transmission clutch learning system for hybrid vehicle and method thereof

A hybrid electric vehicle and learning system technology, applied in the field of two-speed transmission learning system, can solve problems such as zero position is not clearly set, acceleration, screw type actuator can not be completely connected / disconnected power, etc., to achieve Improve stability and reliability, prevent acceleration effects

Active Publication Date: 2015-01-14
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, due to wear of the 1 / 2 gear clutch when the clutch is operated, the lead screw type actuator cannot completely connect / disconnect power, so that the gears cannot be stably engaged / disengaged, and the shifting feel may be poor
[0007] In addition, because there is no learning function for operating the 1 / 2 gear of the two-speed transmission inside the clutch, it is difficult to precisely control the open position, slip position and lock position of the clutch, and the zero position is not clearly set, so that in the May cause unrecognized acceleration when starting the engine

Method used

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  • 2-speed transmission clutch learning system for hybrid vehicle and method thereof
  • 2-speed transmission clutch learning system for hybrid vehicle and method thereof

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Embodiment Construction

[0026] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be appreciated that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims .

[0027] Hereinafter, the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown.

[0028] As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit o...

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Abstract

A 2-speed transmission clutch learning method for a hybrid electric vehicle may include detecting whether the 2-speed transmission clutch may be operated through an actuator by driving a motor, learning an open position, a slip position, and a lock-up position of the 2-speed transmission clutch by detecting the amount of driving current and the rotation speed of the motor for the operation of the 2-speed transmission clutch, and storing learning values of the open position, the slip position, and the lock-up position of the 2-speed transmission clutch into a memory area, and controlling the operation of the 2-speed transmission clutch by applying the learning values.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2013-0081599 filed on Jul. 11, 2013, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to a two-speed transmission learning system and a method thereof by learning and storing open position, slip position in control of 1 / 2 gear of a two-speed transmission inside a clutch for a hybrid electric vehicle and lock position for precise and stable control. Background technique [0004] The control of the 1 / 2 gear of the two-speed transmission inside the clutch for the hybrid electric vehicle and the electric vehicle is performed by driving a screw type actuator so that the 1 / 2 gear can be engaged / disengaged. [0005] The 2-speed transmission 1 / 2 gear inside the clutch is usually a dry clutch, so that over time the plates are worn and the elastic coefficient of the dia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B9/04
CPCF16D48/06G09B9/04F16D2500/1066F16D2500/3026F16D2500/3069F16D2500/5012F16D2500/70605F16D2500/70663B60W20/00
Inventor 孔承基金基男丁相炫李载信安哲民
Owner HYUNDAI MOTOR CO LTD