Clutch control method of hybrid vehicle

A hybrid vehicle and clutch control technology, which is applied to hybrid vehicles, clutches, road vehicle drive control systems, etc., can solve problems such as difficult torque transmission, vibration, excessive clutch slipping, etc.

Active Publication Date: 2017-11-28
HYUNDAI MOTOR CO LTD
View PDF9 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A dry clutch (hereinafter simply referred to as a "clutch") has a clutch transmission torque that varies greatly depending on factors such as the degree of friction determined by the one-way tolerance and durability of the clutch components, Thermal deformation caused by thermal deformation and changes in the coefficient of friction, so it is difficult to accurately d

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Clutch control method of hybrid vehicle
  • Clutch control method of hybrid vehicle
  • Clutch control method of hybrid vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The following description is exemplary in nature and is not intended to limit the invention, the application or uses of the invention. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0026] During regenerative braking in electric vehicle mode (EV mode), braking is performed by utilizing only the reverse drive of the electric motor, and it is assumed that the clutch transmits reverse torque between the transmission and the electric motor, as figure 2 As shown, the rearward transfer torque applied to the clutch results in a different behavior than the forward transfer torque.

[0027] figure 2 An example of learning the transmission torque characteristic in real time according to the stroke of the clutch actuator used to control the clutch is shown. refer to figure 2 , it can be seen that the forward torque (which is the torque transmitted from the engine and motor to the tra...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present disclosure provides a clutch control method of a hybrid vehicle of the including an entering condition determining step in which a controller determines whether shifting is being performed during regenerative braking; an error calculating step in which the controller calculates a torque error by subtracting observer torque, which is clutch transfer torque calculated by a clutch torque estimator receiving transmission input torque and motor speed, from map torque, which is clutch transfer torque calculated based on a clutch transfer torque map for clutch actuator strokes learned in advance, when shifting is being performed during regenerative braking; a correcting step in which the controller corrects the clutch transfer torque map for the clutch actuator strokes using the torque error calculated in the error calculating step; and a clutch control step in which the controller controls a clutch using the map corrected in the correcting step.

Description

technical field [0001] The invention relates to a clutch control method of a hybrid vehicle. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] Generally speaking, a power train that transmits power from an engine and a motor to a transmission through a dry clutch has such a connection structure that includes: an engine, an engine clutch, a motor, a dry clutch, and a transmission, wherein the transmission can be an automatic manual transmission ( automated manual transmission (AMT) or dual clutch transmission (dualclutch transmission, DCT). figure 1 An example of a powertrain using DCT is shown. [0004] For reference, the dry clutch between the motor and the transmission is in some cases considered a component of the AMT or DCT, but is assumed to be a separate component in this paper, as figure 1 as illustrated. [0005] A dry clutch (hereinafter ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F16D48/06
CPCF16D48/064F16D2500/1107F16D2500/30412B60K6/48B60W10/113B60W30/19B60K2006/4825Y10S903/914Y10S903/919Y10S903/946F16D2500/30814F16D2500/3067F16D2500/3026F16D2500/50236F16D2500/70605F16D2500/70235F16D2500/70434F16D48/06F16D2500/1066F16D2500/10412F16D2500/30806F16D2500/70252Y02T10/62B60W20/14B60W10/02B60W10/10B60W50/02B60Y2200/92B60W2510/0275B60W2510/083F16D48/02B60K6/387B60K6/46B60K6/547B60Y2300/18125B60Y2300/42B60Y2400/428F16D2500/308F16D2500/50287F16D2500/70264
Inventor 李浩荣
Owner HYUNDAI MOTOR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap