Method and system for regulating torque transmission capacity of torque transmitting assembly

A technology of torque transmission and components, applied in the direction of transmission, components with teeth, transmission control, etc., can solve problems such as difficulty in correlation calculation, and achieve the effect of simplifying analysis and processing

Inactive Publication Date: 2009-06-03
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A feature of this known method is that it is necessary to provide a sensor for detecting the modulation pressure and the correlation calculation is made difficult by complex phase shifts

Method used

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  • Method and system for regulating torque transmission capacity of torque transmitting assembly
  • Method and system for regulating torque transmission capacity of torque transmitting assembly
  • Method and system for regulating torque transmission capacity of torque transmitting assembly

Examples

Experimental program
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Embodiment Construction

[0032] According to FIG. 1, the motor vehicle has an engine 2 which is connected to a cardan shaft 8 via a clutch 4 and a transmission 6. The cardan shaft 8 drives each half shaft 12 through a differential 10, and these half shafts are connected to the rear wheels 14 without relative rotation. In the illustrated example, the front wheels are not driven.

[0033] An electronic control device 18 comprising a microprocessor with an attached storage device in a known manner has input terminals 20 which are connected to sensors. Examples of sensors include: a sensor 22 for detecting the speed of the transmission input shaft, a throttle sensor 24, an engine speed sensor 26, a cardan shaft speed sensor 28 and possibly other sensors.

[0034] The output end of the control device 18 is connected to the clutch operating device 32 and the transmission operating device 34, and when necessary, to other actuators of the drive train, such as a throttle valve regulator.

[0035] In the illustrate...

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PUM

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Abstract

The invention relates to a method for adjusting the torque transmission capacity of a component which frictionally transmits a torque between an input and an output, in particular a component in the drive train of a motor vehicle, wherein a torque-influencing component is modulated The adjustment amount of the torque transfer capability; detect the input quantity of the component; detect the output quantity of the component; perform correlation calculation on the input quantity and the output quantity, wherein a correlation value is calculated; and obtain the calculated correlation value and the predetermined The difference between the given correlation values, and when the difference exceeds a predetermined threshold, the adjustment amount is changed in the direction of reducing the difference. Advantageously, the measured parameters are the input and output rotational speeds of the assembly.

Description

Technical field [0001] The invention relates to a method and a system for adjusting the torque transmission capability of a torque transmission assembly, especially a component in the drive train of a motor vehicle. Background technique [0002] The friction-fitting torque transmission components included in the drive train of a motor vehicle, such as clutches, cross-over clutches in torque converters of automatic transmissions, and transmissions with continuously variable transmission ratios (CVTs) that operate by means of contact devices Transmissions, friction wheel transmissions), and brakes are increasingly automated or operated by appropriate actuators. In order to reduce the load of the actuator and for the reasons of reducing energy consumption and high control and adjustment accuracy, the control or adjustment amount of the torque transmitted by the friction of the corresponding component should be as small as possible, that is, such a large amount : Long-lasting sliding...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/00F16D48/06F16H9/00F16H61/02F16H61/662
CPCF16D48/066F16D2500/1026F16D48/06F16H2061/0087F16H61/662B60W2510/0241B60W2510/104B60W2510/1015F16H2059/465F16H61/66272F16D48/068B60W2050/0052F16H61/00
Inventor 弗伦茨·比策
Owner SCHAEFFLER TECH AG & CO KG
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