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Method for determining a bite point change and for adapting a friction value of a hybrid separating clutch of a hybrid vehicle

A hybrid vehicle and separation clutch technology, applied to clutches, mechanical equipment, etc., can solve problems such as operation interference and achieve the effect of noise suppression

Active Publication Date: 2017-05-10
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during operation of the motor vehicle, such adaptation routines must always cause disturbances in the operating process

Method used

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  • Method for determining a bite point change and for adapting a friction value of a hybrid separating clutch of a hybrid vehicle
  • Method for determining a bite point change and for adapting a friction value of a hybrid separating clutch of a hybrid vehicle
  • Method for determining a bite point change and for adapting a friction value of a hybrid separating clutch of a hybrid vehicle

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Experimental program
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Embodiment Construction

[0025] exist figure 1 A schematic diagram of the powertrain of a hybrid vehicle is shown in . The drive train 1 includes an internal combustion engine 2 and an electric motor 3 . A hybrid separation clutch 4 is arranged between the internal combustion engine 2 and the electric motor 3 directly downstream of the internal combustion engine 2 . The internal combustion engine 2 and the hybrid separation clutch 4 are connected to each other via a crankshaft 5 . The electric motor 3 has a rotatable rotor 6 and a fixed stator 7 . The transmission shaft 8 of the hybrid separation clutch 4 is connected to a transmission 9 which contains a coupling element not shown further, for example a second clutch or a torque converter which is arranged between the electric motor 3 and the transmission between 9. The transmission 9 transmits the torque generated by the internal combustion engine 2 and / or the electric motor 3 to drive wheels 10 of the hybrid vehicle. In this case, the hybrid di...

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Abstract

The invention relates to a method for determining a bite point change of a hybrid separating clutch of a hybrid vehicle. Said hybrid separating clutch (4) disconnects or connects an internal combustion engine (2) and an electric traction drive (3), and the torque (M) supplied by the internal combustion engine (2) and/or the electric drive (3) is conveyed further to the drive wheels (10) of the hybrid vehicle. Said hybrid separating clutch (4) for determining the bite point (TP) moves from an open state into a closed state and a speed gradient (Ga, Gb, Gc) of the internal combustion engine (2) is determined. According to the invention, a very simple adaption of the bite point of the hybrid separating clutch is possible. Said hybrid separating clutch (4) is moved during the operation of the internal combustion engine (2) with constant torque (M) of said internal combustion engine, until a predetermined torque is transmitted by the hybrid separating clutch (4) and the bite point (TP) is corrected in accordance with the speed gradients (Ga, Gb, Gc) of the internal combustion engine (2).

Description

technical field [0001] The invention relates to a method according to the preamble of claim 1 for determining a contact change of a hybrid separation clutch of a hybrid vehicle and to a method for adapting a hybrid vehicle according to the preamble of claim 4 A method of friction coefficient of a hybrid disconnect clutch for a disconnect clutch control device. Background technique [0002] In automatic clutch applications, ie, for example in dual clutch applications or dual clutch applications, precise knowledge of the clutch torque is particularly important for shifting and starting quality. [0003] DE 10 2010 024 941 A1 discloses a method for controlling a dual-clutch transmission having two drive sub-trains, each of which can be coupled to an internal combustion engine by means of a clutch. During driving operation of a vehicle with a dual-clutch transmission, the contact point of the clutch is determined independently of the engine torque. In this case, the contact po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D48/06
CPCF16D48/06F16D2500/10412F16D2500/1045F16D2500/1066F16D2500/3026F16D2500/30406F16D2500/3065F16D2500/3067F16D2500/50236F16D2500/50245F16D2500/50251F16D2500/7041F16D2500/70414F16D2500/70458
Inventor 格奥尔格·格佩特
Owner SCHAEFFLER TECH AG & CO KG
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