Jaguar Land Rover

Jaguar Land Rover

United Kingdom

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We are reimagining the future of modern luxury by design through our two distinct, British brands.


Our brands are steeped in a rich tapestry of timeless designs that resonate with people, creating an emotional attachment, an intimacy, that is truly unique on the global stage.


Jaguar Land Rover has been a wholly-owned subsidiary of Tata Motors, in which Tata Sons is the largest shareholder, since 2008.


Two brands. Two distinct personalities. Both connected by the elements of quality and sustainability that underpin Jaguar Land Rover’s future of modern luxury by design.


SHAPING OUR FUTURE


We have always been at the avant-garde of technologies and design in luxury vehicles, and we intend to continue.


Together, with our talented, passionate people here in the UK, Slovakia, China, and across the globe, we have all the ingredients at our disposal, to reimagine the business and the experiences our customers seek. We will define what modern luxury means in the world of tomorrow, driven by sustainability.


We will become a more agile creator of the world’s most desirable luxury vehicles and services for the most discerning of customers. A strategy that is designed to create a new benchmark in environmental, societal and community impact for a luxury business.


Jaguar and Land Rover will offer pure electric power, nameplate by nameplate, by 2030.


It is our aim is to achieve net zero carbon emissions across our supply chain, products and operations by 2039.


We have all the ingredients to define what modern luxury means in the world of tomorrow.

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See Jaguar Land Rover news on FISITA Spotlight

Mode Split Brake Disc Design Optimization for Squeal and Thermal Judder

Jinghan Tang, Jaguar Land Rover, talks about utilising CAE tools to optimise brake disc design at EuroBrake 2021

12 May 2021

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EB2020-STP-004

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Dr. Jinghan Tang, Jaguar Land Rover, UNITED KINGDOM

Mr. Jibran Bamber, Jaguar Land Rover, UNITED KINGDOM


Due to the large warranty costs incurred, brake squeal and judder are two of the major brake Noise Vibration and Harshness (NVH) issues facing the automotive industry. Brake disc design is one of the main countermeasures for dealing with both problems. Balancing the disc design requirements for squeal and judder is a big challenge. Besides the widely used frequency shifted disc designs, mode split brake discs are an effective alternative for squeal suppression through the disruption of the discs standing wave. However, due to the geometric irregularity caused by the mode split disc pillar distribution, brake thermal judder can be introduced. In this paper, a brake disc design optimisation study was performed utilising multiple Computer Aided Engineering (CAE) methods, dynamometer and vehicle testing in order to produce a mode split disc that reduces both the squeal and thermal judder propensity.


Target squeal frequencies are identified using a Finite Element (FE) model that has been correlated with test results. Complex Eigenvalue Analysis (CEA) was performed to redesign several brake disc’s to split the complex modes contributing to the squeal frequencies. The likelihood of thermal judder for the redesigned brake discs was assessed by a FE Thermal Stability Analysis (TSA) and a full vehicle Multi-Body Simulation (MBS) transfer path analysis. In addition, the structural integrity of the discs were evaluated using FE thermal stress analysis. The disc designs were then verified through a combination of dynamometer and vehicle testing.


The brake disc pillars were shown to be an effective design parameter in the geometrical optimisation study. The pillar distribution, stiffness and mass were identified as contributors to the modal frequency, structural integrity and thermal stability of the discs. Thus, by using multiple virtual methods in conjunction with testing, a mode split brake disc can be designed to meet both squeal and thermal judder requirements.

EuroBrake 2021

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