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Transmission with torque measuring device

A torque measurement and transmission technology, applied in torque measurement, mechanical equipment, measuring devices, etc., can solve the problems of high manufacturing cost of axial structure space, deterioration of transmission efficiency, and increase of pump power consumption, etc. Measurement accuracy, space saving effect

Active Publication Date: 2020-12-08
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this signal is relatively imprecise, especially in partial load operation
Excessive compression of the individual discs of a driven disc pair or driven disc pair directly deteriorates transmission efficiency and unnecessarily increases pump power consumption
The torque sensors previously used as an alternative for this purpose, in particular hydromechanically acting torque sensors, in turn entail disadvantages in terms of axial installation space and high manufacturing costs.

Method used

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  • Transmission with torque measuring device
  • Transmission with torque measuring device

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Embodiment Construction

[0028] combine figure 1 The subsequently described embodiment according to the invention of a continuously variable / infinitely adjustable transmission 1 according to a preferred exemplary embodiment is shown in detail. The continuously variable transmission 1 (also referred to as a CVT transmission) corresponds in its basic structure and in its basic function to the continuously variable transmissions already known from the prior art. Exemplarily, in figure 2 A continuously variable transmission 1' of the prior art is shown in . A prior art continuously variable transmission 1', like the transmission 1 according to the embodiment of the invention, typically has a pair of drive discs 2 and a pair of driven discs 3 (however for the sake of clarity this is figure 1 not fully visible). The pair of driving discs 2 and the pair of driven discs 3 are rotationally connected / coupled via a continuous traction mechanism 4 accommodated in a relatively movable manner on these disc pair...

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PUM

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Abstract

The invention relates to a transmission (1) for a powertrain of a motor vehicle, which has a shaft section (6) on which is arranged a A torque measuring device (7) for a moment, wherein an electronics unit (8) connected to the torque measuring device (7) is accommodated radially within the shaft section (6); and relates to a motor vehicle A powertrain with a transmission (1).

Description

technical field [0001] The invention relates to a transmission for a powertrain of a motor vehicle (for example a passenger car, a van, a bus or other commercial vehicles) having a shaft section on which is mounted a device designed for measuring A torque measuring device for the torque on the segment. The invention also relates to a powertrain with such a transmission. Background technique [0002] Generic transmissions are sufficiently known from the prior art. In this context, EP 0 228 199 A2 for example discloses a voltage sensor and control arrangement for a CVT transmission. [0003] A further prior art is known from WO 2016 / 050 241 A1, which shows a device for detecting a torque present on a rotatably mounted structural element. DE 10 2013 204 924 A1 shows a very similar embodiment for measuring the torque acting on a steering shaft. [0004] In a CVT transmission, the engine torque signal MMI is usually used for torque-appropriate compression of the respective pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H59/14F16H61/662
CPCF16H59/14F16H61/0006F16H61/662F16H2059/147F16H9/18F16H61/6625G01L3/00
Inventor 伯恩哈德·沃尔特塞巴斯蒂安·克普夫勒赖因哈德·施特尔
Owner SCHAEFFLER TECH AG & CO KG