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Limited slip transmission equipment

A limited-slip and actuation technology, applied in the direction of transmission, mechanical equipment, differential transmission, etc., can solve the problem of expensive system installation

Active Publication Date: 2019-04-16
EATON INTELLIGENT POWER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As such, such systems are relatively expensive to install and / or operate

Method used

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  • Limited slip transmission equipment
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Embodiment Construction

[0019] Reference will now be made in detail to the exemplary aspects of the invention shown in the drawings. Where possible, the same reference numerals are used in all the drawings to refer to the same or similar structures.

[0020] Clutch actuation system

[0021] The present invention generally relates to a method and system for controlling the operation of a hydraulically actuated transmission clutch for restricting relative rotation between first and second rotatable transmission components (not shown). In one example, the method and system may involve directly adjusting / controlling (eg, limiting) the hydraulic fluid flow rate to limit the amount of allowable difference in rotational speed between the first and second transmission components. Although the hydraulic pressure in the system changes as the flow rate is adjusted, it is preferable not to specifically control the pressure itself in some applications. In such cases, pump speed / flow rate can be a controlled paramet...

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Abstract

The present disclosure relates to a limited-slip clutch system and method. In one aspect, the limited-slip clutch actuation system can include a hydraulic pump operated by a variable speed drive wherein the pump can be configured to generate hydraulic flow in a hydraulic circuit including an actuation branch line that actuates a clutch. The circuit may also include a flow regulating valve for regulating a hydraulic fluid flow rate through the hydraulic circuit wherein the flow regulating valve can be configured to prevent the hydraulic fluid flow rate from exceeding a set maximum flow rate regardless of a magnitude of the hydraulic pressure in the hydraulic circuit. In operation, the pump speed can be controlled based on a command pressure set point and the measured pressure in the actuation branch line and to minimize operational costs by operating the pump at a transition region of the system pressure-pump speed curve.

Description

[0001] Cross references to related applications [0002] The present invention was filed as a PCT international patent application on August 22, 2014, and claims the priority of U.S. Provisional Application No. 61 / 869,270 filed on August 23, 2013, the content of which is hereby incorporated by reference in its entirety. Technical field [0003] The present invention relates generally to limited slip transmission clutches. More particularly, the present invention relates to an actuation structure for a limited slip transmission clutch. Background technique [0004] The transmission clutch is used to selectively rotatably connect the first and second rotatable transmission components. The limited slip transmission clutch is a transmission clutch that selectively connects the first and second rotatable transmission components while allowing a limited / controlled amount of relative rotation between the first and second rotatable transmission components. One application of limited-slip ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H48/20F16H48/32F16D31/00
CPCF16H48/32F16H48/26F16H61/029F16H61/068F16H2048/204F16H2048/343
Inventor A·N·埃德勒
Owner EATON INTELLIGENT POWER LTD