Mitigating the Brake Squeal Noise Occurrence of Car Disc Brake through Modification of Caliper-Bracket

Chilbule, Chaitanya; Phadke, S. B.; Kulkarni, Rajendra; Raajha, M. P.

doi:10.4271/2017-26-0218

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…3 The majority of research in this field is aimed at finding passive measures to reduce or eliminate brake squeal. This includes geometry modifications, 4 adoption of appropriate materials 5,6 or adding components to modify vibrational performance, such as damping shims or grease. 7 A passive approach may sound justifiable as it minimises the brake system complexity, thereby total mass and costs, but it might fail to reduce squeal if the environmental or brake system conditions change.…”

Section: Introductionmentioning

confidence: 99%

A new prototype system for automated suppression of disc brake squeal

Budinsky

Brooks

Barton

2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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This paper presents a new prototype system capable of automated disc brake squeal suppression using a method of varying the leading and trailing piston pressures in a multi-piston opposed brake caliper. The new system consists of a novel modular four-piston brake caliper, a two-channel brake actuation system and an advanced control system that is capable of varying the leading/trailing pressure ratio (LTPR) when squeal is detected. The amended LTPR results in movement of the centre of pressure (CoP) position at the pad/disc interface, which leads to new dynamic parameters of the brake system and thereby to different squeal propensity. Moreover, the control system maintains the overall brake torque at a constant value, so the variation of the LTPR on the brake performance is minimised. Experiments using the current disc brake setup showed that by varying the LTPR, thereby changing the CoP position, the squeal occurrence can be successfully controlled. Large leading or trailing offsets typically lead to a quieter brake. Tests demonstrating operation of the proposed squeal control system in an automatic mode reduced the squeal occurrence significantly for a given duty cycle.

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Section: Introductionmentioning

confidence: 99%

A new prototype system for automated suppression of disc brake squeal

Budinsky

Brooks

Barton

2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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Analysis of Changes in Disc-Brake Squeal Characteristic due to Regenerative Braking Simulation on Brake-Inertia-Dynamometer

Chilbule¹,

Weiss²

2019

SAE Technical Paper Series

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Time-Domain Explicit Dynamic CAE Simulation for Brake Squeal

Song¹,

Wang²,

Medhora³

et al. 2023

SAE Technical Paper Series

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<div class="section abstract"><div class="htmlview paragraph">Disc brake squeal is always a challenging multidisciplinary problem in vehicle noise, vibration, and harshness (NVH) that has been extensively researched. Theoretical analysis has been done to understand the mechanism of disc brake squeal due to small disturbances. Most studies have used linear modal approaches for the harmonic vibration of large models. However, time-domain approaches have been limited, as they are restricted to specific friction models and vibration patterns and are computationally expensive. This research aims to use a time-domain approach to improve the modeling of brake squeal, as it is a dynamic instability issue with a time-dependent friction force. The time-domain approach has been successfully demonstrated through examples and data.</div></div>

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Mitigating the Brake Squeal Noise Occurrence of Car Disc Brake through Modification of Caliper-Bracket

Cited by 3 publications

References 4 publications

A new prototype system for automated suppression of disc brake squeal

A new prototype system for automated suppression of disc brake squeal

Analysis of Changes in Disc-Brake Squeal Characteristic due to Regenerative Braking Simulation on Brake-Inertia-Dynamometer

Time-Domain Explicit Dynamic CAE Simulation for Brake Squeal

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