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belt slip monitor

A belt slip, monitor technology applied in the direction of belt/chain/gear, starter with mechanical power storage, transmission, etc., which can solve the problems of tolerance, less reliable tensioner device, lower fuel efficiency, etc.

Active Publication Date: 2018-09-28
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The passive tensioning system is set at a tension sufficient to avoid slippage at maximum operating torque, which can result in reduced fuel efficiency
Actively controlled tensioner units may be less reliable and would require more expensive electronic actuators
Additionally, spring-offset tensioners require additional spring rate information and may be susceptible to tolerances

Method used

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Examples

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Embodiment Construction

[0022] The motor-generator may be used to selectively assist in operating the engine or to supply electrical power to the engine and / or the vehicle's electrical systems. Therefore, motor-generators can be used as part of parallel hybrid technology. As vehicle manufacturers move to incorporate increasing levels of hybrid technology into their products, the engine's alternator may be replaced by a motor-generator on the accessory belt drive system, such as an integrated starter generator (ISG).

[0023] By replacing the alternator with an ISG, regenerative braking energy can be captured and the ISG can provide torque assistance during high load operation. ISG also enables faster engine restarts during start-stop events. While standard alternator systems only require torque to be transmitted in a single direction, ISGs require torque to be transmitted in both directions, with increased levels of torque transmission compared to standard alternator systems. A higher level of torq...

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PUM

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Abstract

The present invention relates to belt slip monitors. A belt slip monitor system and method configured to determine whether a belt coupled to a motor-generator is slipping based on the operational status of a first movable portion and a second movable portion of the belt slip monitor, wherein the The operating state of the first movable part and the second movable part depends on the tension in the belt.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to UK Patent Application No. 1404270.9 entitled "Belt Slip Monitor", filed 11 March 2014, the entire contents of which are incorporated herein by reference for all purposes. technical field [0003] The present application relates to a belt slip monitor for a belt, and in particular, but not exclusively, to a belt slip monitor configured to determine coupling to a motor-generator based on the operational state of its first and second movable parts. Belt slip monitor to see if the belt of the machine is slipping. Background technique [0004] A motor-generator such as a belt-driven integrated starter-generator (ISG) may be used to help operate the engine by providing additional torque or by supplying electrical power to the vehicle's electrical system. To reduce frictional losses, the belt tension of the ISG's accessory drive pulley is typically monitored. [0005] Belt tension can be ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02N15/10F02B77/08
CPCF16H7/08F02B67/06F16H2007/0885F16H2007/0897F16H2007/0861G01L5/04F02N19/00F02N11/04F02N11/0825F02N11/006B60K6/485B60W10/08F16H7/02B60K2025/022B60W2710/08F16H2007/0887
Inventor T·P·彼得里迪斯D·A·J·吉斯
Owner FORD GLOBAL TECH LLC