Method for preventing safety-critical activation of a clutch in a hybrid module of a motor vehicle power train

A technology of hybrid power module and separation clutch, which is applied in the direction of hybrid power vehicles, clutches, motor vehicles, etc., can solve problems such as unintentional closing and endangering safety, and achieve the effect of improving accuracy and high system dynamics

Active Publication Date: 2016-07-20
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of a fixed setting of the safety distance, however, an unintentional closing of the separating clutch can occur due to a fault in the clutch actuation system, which can lead to a safety-threatening situation in the motor vehicle

Method used

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  • Method for preventing safety-critical activation of a clutch in a hybrid module of a motor vehicle power train
  • Method for preventing safety-critical activation of a clutch in a hybrid module of a motor vehicle power train
  • Method for preventing safety-critical activation of a clutch in a hybrid module of a motor vehicle power train

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Embodiment Construction

[0020] figure 1 Schematically shows a powertrain of a motor vehicle with an internal combustion engine 1 , a vibration damper 3 attached to the crankshaft 2 of the internal combustion engine 1 , a hybrid module 4 with a freewheel 5 and a separating clutch 6 , and an electric drive Rotor 7 and stator 8 , transmission 9 , differential 10 and wheels not shown in detail. Two parallel torque transmission lines are arranged between the internal combustion engine 1 and the transmission 9 . The first torque transmission line includes the disconnect clutch 6 and the second torque transmission line includes the freewheel 5 . Freewheel 5 transmits the torque from internal combustion engine 1 to transmission 9 and is disengaged in the direction of torque flow from transmission 9 to internal combustion engine 1 . When the separating clutch 6 is engaged, torque can be transmitted from the transmission 9 in the direction of the internal combustion engine 1 . This relates in particular to ...

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Abstract

The invention relates to a method for preventing safety-critical activation of a clutch in a hybrid module of a motor vehicle power train, the hybrid module being effective between an internal combustion engine and a transmission and comprising an electric drive, a clutch and a freewheel, and the clutch being used to start the internal combustion engine by transmitting torque, which is supplied by the electric drive or the power train, as the clutch frictionally engages with the electric drive or the power train for purely electric driving. In a method in which the error tolerances of the entire system can be taken into consideration, a safety gap of the disconnected clutch that has be be maintained is adjusted in accordance with the ambient conditions around the motor vehicle and/or the boundary conditions of the vehicle.

Description

technical field [0001] The invention relates to a method according to the preamble of claim 1 for avoiding safety-threatening actuation of a disconnect clutch in a hybrid module of a drive train of a motor vehicle. In such a method, the hybrid module acts between the internal combustion engine and the transmission and has an electric drive, a separating clutch and a freewheel, wherein the separating clutch is used to communicate with the electric drive or the drive train for purely electric driving The non-positive connection transmits the torque provided by the electric drive or drive train to start the internal combustion engine. Background technique [0002] A hybrid module for a powertrain of a motor vehicle is known from DE 10 2012 206 680 A1. The hybrid module is arranged between the internal combustion engine and the transmission and has an electric drive, a separating clutch and a freewheel, wherein the separating clutch and the freewheel are each arranged parallel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/48B60K6/387B60K6/383
CPCB60K6/383B60K6/387B60K6/48B60K2006/4825B60W10/02B60W20/50B60W2552/40B60W2710/022F16D48/10F16D2500/10412F16D2500/1045F16D2500/1066F16D2500/3026F16D2500/312F16D2500/3122F16D2500/3125F16D2500/5029F16D2500/5104F16D2500/5108F16D2500/5114F16D2500/525F16D2500/70252F16D2500/70264Y02T10/62
Inventor V·屈斯M·迪尔泽
Owner SCHAEFFLER TECH AG & CO KG
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