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Motor vehicle driving train and process for controlling an automated engine clutch

A technology for engine clutches and drive trains, applied in clutches, engine control, mechanical equipment, etc., can solve problems such as delayed clutch control response characteristics, and achieve rapid response characteristics, space saving, and good controllability

Inactive Publication Date: 2008-10-15
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] A simultaneous disadvantage of this design is that, starting from a non-actuated standstill, the servo drive must first override the free space in order to adjust a defined clutch torque, which leads to a certain delay in the response behavior of the clutch control

Method used

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  • Motor vehicle driving train and process for controlling an automated engine clutch
  • Motor vehicle driving train and process for controlling an automated engine clutch
  • Motor vehicle driving train and process for controlling an automated engine clutch

Examples

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Embodiment Construction

[0040] According to FIG. 1 , a drive train 1 of a motor vehicle thus comprises an engine 2 designed as an internal combustion engine, an operating mechanism 4 connected to an axle drive 5 and having a variable transmission ratio (that is, stepwise shiftable or continuously adjustable) and an engine 2 The automatic engine clutch 3 , which is arranged on the line of force with the running gear 4 , is now designed as a friction clutch which can be closed passively by means of a spring-loaded pressure device 6 and whose transmittable torque (clutch torque) can be controlled by means of a clutch servo. The drive 7 adjusts.

[0041] The engine clutch 3 is designed as a single-plate dry clutch 8 . Thus, in a manner known per se, between a flywheel 12 fixedly connected to the crankshaft 11 of the engine 2 and a pressure plate 13 on the transmission side, a transmission disc 9 is arranged, which is mounted in a rotationally fixed and axially displaceable manner on the input shaft 10 of...

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PUM

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Abstract

A motor vehicle driving train includes a propulsion engine (2) designed as an internal combustion engine, a gearbox (4) with variable transmission ratio linked to an axle drive (5), and an automated engine clutch (3) arranged between the propulsion engine (2) and the gearbox (4) so as to transmit power, and designed as a friction clutch which can be passively closed by a spring-supported compression device (6), and whose transmissible torque (clutch moment) can be adjusted by means of a clutch actuator (7). In order to improve controllability and produce a faster response characteristic of the engine clutch (3), the spring-supported compression device (6) is designed to generate a basic clutch moment lower than the maximum torque of the propulsion engine (2), and a second compression device (17) operationally linked to the clutch actuator (7) is provided for setting a higher clutch moment.

Description

technical field [0001] The invention relates to a drive train of a motor vehicle, which has an engine constituted as an internal combustion engine, a running mechanism connected to an axle drive and having a variable transmission ratio, and an automatic engine clutch arranged on the line of force between the engine and the running mechanism, which It is designed as a friction clutch that can be closed passively by means of a spring-loaded pressure device and whose transmissible torque (clutch torque) can be adjusted by means of a clutch actuating drive. [0002] The invention also relates to a method for controlling an automatic engine clutch which is arranged on the transmission of a motor vehicle on the line of force between an engine designed as an internal combustion engine and a running mechanism connected to an axle drive and having a variable transmission ratio. The clutch is designed as a passively closable friction clutch, which is closed by a spring-loaded pressure d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D48/02
CPCY10T477/6425F16D2500/1028F16D2500/1045F16D2500/1026F16D48/02F16D2500/10412F16D2500/501F16D2500/3024
Inventor 雷纳·佩措尔德马里奥·施泰因博恩
Owner ZF FRIEDRICHSHAFEN AG