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Method for controlling a torque converter clutch device

A clutch device, torque converter technology, applied in transmission, transmission control, fluid transmission, etc., can solve the problem of unable to prevent speed loss, improve driving comfort and driving ability, improve climbing and off-road ability , the effect of reducing the frequency of shifting

Active Publication Date: 2016-08-10
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the shift clutch is open and the lock-up clutch is closed in this condition, the torque of the drive motor as well as the torque conversion of the torque converter cannot prevent the speed loss during the transmission shift

Method used

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  • Method for controlling a torque converter clutch device

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Experimental program
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Effect test

Embodiment Construction

[0029] Such drivetrains for heavy-duty traction vehicles with a combination of a torque converter clutch and an automatic transmission are known per se. Correspondingly, the torque converter clutch device 1 includes a hydraulic torque converter 2 , a lock-up clutch 7 that can be automatically controlled by a control device, a freewheel 8 , and a shift clutch 9 that can be automatically controlled. The lock-up clutch 7 and the shift clutch 9 are designed as friction clutches.

[0030] The torque converter 2 has a pump wheel 3 , a turbine wheel 4 and a guide wheel 5 in an oil-filled housing (not shown). The pump wheel 3 is connected to a drive shaft 10 or transmission shaft of a drive motor 11 designed as an internal combustion engine. The turbine wheel 4 is connected to the input side 9 a of the shift clutch 9 , while the output side 9 b of the shift clutch 9 is connected to the transmission input shaft 12 of the automatic transmission 13 . The guide wheel 5 is arranged betwe...

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PUM

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Abstract

Method for controlling a torque converter clutch having a hydraulic torque converter, a lock-up clutch and a shift clutch and arranged in the power flow between a drive motor drive shaft and a shift clutch in a powertrain of a motor vehicle In the torque converter clutch device, the torque converter can be bridged between the transmission shaft and the shift clutch by means of the lock-up clutch, and the transmission input shaft can be connected to the torque converter and the transmission shaft by means of the shift clutch. disengagement, wherein the transmission input shaft is disengaged from the torque converter via the gearshift clutch when the transmission is shifted, and wherein the lock-up clutch is engaged after a starting operation via the torque converter. Provided to improve the driving comfort and driving performance of vehicles equipped with such a torque converter clutch device: the current driving situation is detected and evaluated; depending on the evaluation of the driving situation, the lock closed after the starting process is temporarily opened if necessary clutch in order to avoid or interfere with the subsequent shifting of the shift transmission.

Description

technical field [0001] The invention relates to a method for controlling a torque converter clutch. Background technique [0002] Torque converter clutches are often used together with gearshift transmissions in commercial vehicles for demanding applications, such as the heavy-duty sector, the construction site sector or the military sector, in order to enable simple and low-wear adjustment of the vehicle even under the most difficult conditions. start possible. [0003] The known torque converter clutch device is arranged in the drive train of such a vehicle between the internal combustion engine and the gearshift transmission and comprises a hydrodynamic torque converter for converting the drive torque of the internal combustion engine; it is preferably designed as a lock-up of a friction clutch Clutch, the lock-up clutch is arranged parallel to the torque converter in the powertrain and can mechanically bridge the torque converter; usually also includes a coasting flywhe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/14F16H61/68
CPCF16H61/143F16H61/68F16H2045/005F16H2061/146
Inventor 约翰内斯·克姆勒迈克·维特纳约阿希姆·施陶丁格安杰尔科·韦森亚克克劳斯·亨辛格尔
Owner ZF FRIEDRICHSHAFEN AG
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