The Lamborghini official webpage (Lamborghini, n.d.) introduces the new Lamborghini Huracán STO (Super Trofeo Omologata) on 18 November 2020. The Lamborghini Huracán STO features a unique design engineered for competitive racetrack and street-road purposes compared to its predecessor in the Huracán series. What makes this track-oriented road-homologated super sports car unique lies within the brake system of Huracán STO. According to the Lamborghini webpage featuring its brake system (Lamborghini, 2021), the article states that the system incorporates a cutting-edge Brembo carbon-ceramic material-racing (CCM-R) design. This distinctive CCM-R design was derived from Formula 1 racing technology, which offers superior quality in durability compared to the traditional carbon-ceramic brakes (CCB) commonly found in other high-performance vehicles. Furthermore, according to Lamborghini's webpage (Lamborghini, n.d.), the brake systems also incorporate a new front brake cooling duct to assist in dissipating the heat from the brake disc during intense track sessions. In addition, it also features sophisticated electronic monitoring systems that enable drivers to monitor the brake system condition and manage the wear of the brake. With such advanced technology instilled, the braking system featured in the Huracán STO empowers drivers to enjoy a road-worthy experience akin to a track-built automobile. This not only enhances comfort but also instils a heightened sense of confidence, as it ensures swift and efficient braking without compromising performance or safety when cutting through corners on track or coming to a complete stop at any point on the road.
A distinctive feature of the Lamborghini Huracán STO brake system that stands out is the unique brake disc. According to Lamborghini (2021), the Brembo CCM-R disc brakes offer a magnificent improvement in performance, boasting four times in thermal conductivity and a 60% boost towards stress resistance. Furthermore, it delivers a substantial 25% improvement in maximum braking force compared to traditional CCB systems and a 7% enhancement in longitudinal deceleration. These advancements in the brake discs significantly enhanced the cost-effectiveness and prolonged the lifespan of high-performance vehicles such as the Huracán STO over the long term.
In addition, the system also incorporates a unique tire design to enhance its efficiency. According to a local motoring media, Torque (Lam et al., 2021), the article states that when paired with the stock Bridgestone Potenza Sports tires, the Huracán STO delivers an outstanding braking performance in producing a complete stop from a speed of 100km/h within a range of 30 meters. The complementation of these tires paired with the braking system empowers drivers with precise control at lower speeds, preventing the experience of sudden and aggressive braking forces. On the other hand, this outstanding performance also aids drivers in efficiently cornering on the racetrack.
Another distinctive element of this braking system is the innovative front cooling duct. According to a review of the Lamborghini Huracán STO conducted by Yanko Design (Lyon, 2021), the cooling duct is engineered to efficiently dissipate heat from the brake discs and calipers, especially during intense track sessions. It ensures the brake discs operate at peak performance levels consistently with minimal to zero brake fade. In addition to these air-cooling duct features, the system also incorporates a unique and advanced electronic monitoring technology known as Brake Temperature Monitoring (BTM). According to Lamborghini's media information webpage (Lamborghini, n.d.), BTM employs a unique estimation algorithm, enabling drivers to continuously monitor the brake system temperature and effectively manage wear over its lifespan. The incorporation of such technology holds the potential to extend the longevity and overall utility of the brake system.
Despite having such cutting-edge technology in the braking systems, it also has certain drawbacks. While the brake system is engineered to deliver better efficiency, durability, and cost-effectiveness, the Brembo CCM-R brake disc, in terms of maintenance, shares similarities with the traditional CCB brake discs. They are relatively expensive to replace. According to an article authored by Brembo in collaboration with Jason Fenske on the high cost of carbon ceramic discs (Brembo, 2022), the discs incorporate premium fasteners and exceptionally robust materials. Moreover, the disc manufacturing process involves multiple complex stages, requiring specialized workers and equipment. On the other hand, the discs' production quantities are limited, thus resulting in a steep price tag. Furthermore, the brake system's effectiveness is tied to specific tire usage. Any deviation made may potentially yield unexpected outcomes. According to the tire company, Bridgestone (De Bock, 2021), the Huracán STO tires are meticulously engineered by Bridgestone to excel for both track and road. Being the sole tire supplier implies that any deviation from these custom-made tires could adversely affect the braking system performance and cost-effectiveness in maintenance.
In conclusion, the
Lamborghini Huracán STO's braking systems represent a masterpiece in advanced
braking technology in high-performance vehicles. The synergy of innovations
like CCM-R discs, cooling duct design, and advanced electronic monitoring
ensures efficient performance with minimal wear during intense tracking
sessions consistently. While tire choice and maintenance costs influence system
performance, drivers' usage holds the key to maintaining efficiency and
cost-effectiveness. Furthermore, it also sets a model for future advanced
braking systems in high-performance automobiles and their potential for
improvement.
References
Lamborghini. (2021, October 5). Huracán STO: New CCM-R
Braking System. Lamborghini.com. https://www.lamborghini.com/en-en/news/huracan-sto-new-ccm-r-braking-system
Lamborghini. (n.d.). Racetrack to road: the new Lamborghini
Huracán STO. https://preview.thenewsmarket.com/Previews/lamb/DocumentAssets/572482_v2.pdf
Lyon, P. (2021, November 8). 2021 Lamborghini Huracán STO
Review. Yanko Design. https://www.yankodesign.com/2021/11/08/lamborghini-huracan-sto-review/
Lam, A., Chan, D., & Ming, F. (2021, December 25).
Lamborghini Huracán STO review: A breed apart. Torque. https://www.torque.com.sg/reviews/lamborghini-huracan-sto-review-a-breed-apart/
Brembo. (2022, January 21). Jason Fenske explains why
carbon ceramic discs are so expensive. Brembo. https://www.brembo.com/en/company/news/jason-fenske-explains-why-carbon-ceramic-discs-are-so-expensive
De Bock, S. (2021, July 20). Bridgestone Partners with
Lamborghini to Develop Custom Potenza Race Tire for Huracán STO Supercar. https://www.bridgestoneamericas.com/en/press-release-details.en.2021.bridgestone-selected-oe-lamborghini-huracan-sto
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