Method for controlling torque converter clutch
A technology of clutch device and torque converter, which is applied in transmission device, transmission device control, fluid transmission device, etc., can solve problems such as speed loss cannot be prevented, improve driving comfort and driving ability, reduce gear shift frequency, The effect of increasing speed
Active Publication Date: 2013-06-19
ZF FRIEDRICHSHAFEN AG
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- 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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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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The invention relates to a method for controlling a torque converter clutch, which has a hydrodynamic torque converter, a lock-up clutch and a shifting clutch. The torque converter clutch, in a power assembly system of a vehicle and in a power flow, is arranged between a drive shaft of a drive motor and a transmission input shaft of a shifting transmission. In the torque converter clutch, the torque converter is spannedly connected between the drive shaft and the torque converter clutch by means of the lock-up clutch, and the transmission input shaft can get away from the torque converter and the drive shaft by means of the shifting clutch. Wherein, when a shift clutch shift gears, the transmission input shaft is disconnected with the torque converter by the shifting clutch; and the lock-up clutch is closed after a start-up operation is performed on the torque converter. For improving running comfort and running performance of the vehicle equipped with the torque converter clutch, it is intended that the current driving situation is determined and evaluated, and that the lock-up clutch closed after the start-up process is temporarily opened as required based on the evaluation of the driving situation, in order to avoid or affect following gear change of the shifting transmission.
Description
technical field [0001] The invention relates to a method for controlling a torque converter clutch according to the preamble of claim 1 . 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; u...
Claims
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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