Operating Performance of Motor Vehicle Braking Systems as Affected by Fluid Water Content

Radlinski, R W; Forthofer, R. J.; Harvey, J. L.

doi:10.4271/710253

Cited by 16 publications

(2 citation statements)

References 6 publications

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“…The high temperatures are likely to boil the brake oil and make a vapor within the brake piping system. This then triggers a vapor lock phenomenon that can cause a loss of braking capability [12,13]. In addition, the brake disk gets corroded by the dust generated from the brake pads and the exposure to the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Effects of Heat Treatment on the Microstructure and Hardness of A356 (AlSi7Mg0.3) Manufactured by Vertical Centrifugal Casting

Kim

Jang²,

et al. 2021

Applied Sciences

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The A356 alloy has been widely used in automotive components, such as wheels and brake disks, because it is an excellent lightweight material with high corrosion resistance and good mechanical properties. Recently, to reduce the weight of brake disks, the Fe-A356 hybrid brake disk has been suggested. Because brake disk quality is directly related to driving safety, the T4/T6 heat treatment of centrifugally cast A356 alloys were performed to enhance the mechanical properties and reduce micro-segregation. The solid-solution heat treatment followed by annealing caused the formation of Mg-rich intermetallic compounds on the grain boundaries of the Al matrix, decreasing the average hardness of the alloys by 13 HV. In contrast, the solid solution followed by water quenching (T4) reduced the area fractions of the intermetallic compounds and increased the average hardness by 11 HV. The T6 heat-treated A356 alloys, which were influenced by the formation of the Guinier–Preston zone exhibited a relatively higher average hardness, by 18 HV, compared to T4 heat-treated A356 alloys.

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Section: Introductionmentioning

confidence: 99%

Effects of Heat Treatment on the Microstructure and Hardness of A356 (AlSi7Mg0.3) Manufactured by Vertical Centrifugal Casting

Kim

Jang²,

et al. 2021

Applied Sciences

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“…Conventional glycol-based brake fluids are hygroscopic, for example, the most popular brake fluids of DOT3 (US Department of Transportation) and DOT4. Water content leads to corrosion in the brake system components and definitely affects the brake system performance by reducing brake fluid boiling point [1,2]. Boiling point reduced fluid may create vapor during hard braking or frequent braking.…”

Section: Introductionmentioning

confidence: 99%

A new method for on-line monitoring of brake fluid condition using an enclosed reference probe

Wang¹,

Shida²

2007

Meas. Sci. Technol.

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This paper presents a new method for on-line monitoring of the liquid level and water content of brake fluid using an enclosed reference probe as the capacitive sensing part. The probe has an enclosed cavity at the end which is designed to hold fresh brake fluid as an on-line reference. Three capacitances formed by four electrodes are used for the liquid level, water content and reference measurement and form the mutual calibrating output functions of the sensing probe. The liquid level measurement is calibrated to the permittivity changes by the capacitance for water content measurement. At the same time, the water content measurement is calibrated to temperature changes and variety of fluids by the capacitance of the reference measurement. Therefore, once the permittivity characteristics of brake fluids are experimentally modeled, the proposed method has a self-calibration ability to influence factors including temperature, water content (to liquid level measurement) and variety of brake fluids without an additional sensor supported by database as in conventional intelligent sensor systems. The design and implementation method are discussed with a prototype probe developed and tested. The permittivity characteristics of brake fluid samples are discussed. The calibration method and errors analysis are presented. The method presents a different way to construct a smart sensor which is useful in brake fluid condition monitoring and also other liquid measurement applications.

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A comprehensive conceptual framework for road safety strategies

Hughes

Anund

Falkmer

2016

Accident Analysis & Prevention

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Operating Performance of Motor Vehicle Braking Systems as Affected by Fluid Water Content

Cited by 16 publications

References 6 publications

Effects of Heat Treatment on the Microstructure and Hardness of A356 (AlSi7Mg0.3) Manufactured by Vertical Centrifugal Casting

Effects of Heat Treatment on the Microstructure and Hardness of A356 (AlSi7Mg0.3) Manufactured by Vertical Centrifugal Casting

A new method for on-line monitoring of brake fluid condition using an enclosed reference probe

A comprehensive conceptual framework for road safety strategies

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