- apollo tyres
- bmw
- oe
- tyres
Optimised Bacalar W12 Engine Delivers Improved Power, Torque
- by T Murrali
- April 11, 2021
The Bacalar spearheads a return to coachbuilding by Bentley Mulliner and features an enhanced version of Bentley’s peerless 6.0-litre W12 TSI engine, the most advanced 12-cylinder engine in the world.
Since the first introduction of the twin-turbocharger W12 in 2003, the engine’s refinement has seen an increase of up to 27 percent in power, 38 percent in torque and a reduction of 38 percent in emissions.
This has been realised through the evolution and optimisation of the crankcase, improvements in the oil and cooling systems, twin-scroll turbocharging technology and more effective injection and combustion processes.
Sources from Bentley told this correspondent that these improvements resulted from several initiatives taken by the company. It may be recalled that the latest generation of W12 was launched in the Bentayga in 2016. “A thoroughly reworked engine included a crankcase 30 percent stronger than its predecessor, while the cylinder surfaces were coated to reduce friction and improve corrosion resistance. A low-alloy steel coating is applied to the bores using an Atmospheric Plasma Spray (APS) process. Improvements were also made to the cooling system, with the engine featuring three separate coolant circuits. The first is designed to bring the cylinder heads up to optimum operating temperature as quickly as possible for best engine performance and low emissions. The second cool the engine block and oil system, while the third handles the turbochargers’ thermal load. Each system has a dedicated water pump, allowing optimised individual control,” sources said.
Twin-scroll Turbocharging
Twin-scroll turbochargers minimise turbo response time and provide a more efficient exhaust package. The exhaust assemblies for the three front and three rear cylinders are separate from one another, which feed the twin-scroll impellers. The turbocharger housing is welded directly to the exhaust manifolds and feature integrated speed sensors, allowing the engine to monitor turbo performance for maximum efficiency.
Effective Injection
The W12 combines high-pressure direct fuel injection (200 bar injection pressure) with low-pressure port injection (six bar). The combination of these two systems maximises refinement, lowers particulate emissions and optimises power and torque delivery.
Interestingly, each W12 engine is hand-built over 6.5 hours by a team of 45 craftspeople before undertaking a highly sophisticated test regime of over an hour via three specialist diagnostic machines during the engines assemble.
According to the sources, there were three specialist diagnostic machines with sophisticated test regime.
Leak Test
The leakage test is conducted by pressurising each of the systems for fuel, oil and water individually. The different cavities are pressurised to values between 0.2 – 5.0 bar respectively and then measured whilst the pressure decays over time. The reduction in pressure versus time represents the quality of the sealing of the engine assembly. If the pressure drops faster than expected, a leak is indicated. A special fluid is sprayed on to the exterior of the engine to pin-point any leakage paths.
Cold Test
The engine is loaded on to a testbed plate, and connections are made to the engine loom and all engine systems, whilst a large electric motor couples to the engine via the crankshaft. “Motoring” the engine via the crankshaft allows the testbed to collect data from a suite of sensors. The facility measures 600 individual properties and characteristics of the engine during a 15-minute cycle. Due to the low running speed of 120 RPM for the test, finer details and any inconsistencies can be identified thanks to a sample rate that highlights even the briefest of anomalies that would be invisible if the engine was firing or running at speed. This fine detail analysis is also valuable for confirming the precise timing of the engine. Using positioning information from sensors on the crankshaft, crankcase and camshafts, and cylinder compression values, the Cold Test can confirm the engine timing is accurate and, therefore, achieve the best possible combustion cycle.
Hot Test
When the engine arrives for hot testing, a UV dye is added to the engine to help identify any leaks. The coolant and fuel system are pressurised with air and nitrogen, respectively, for a final check before introducing the necessary fluids ready for testing. The engine is cranked to build oil pressure before the ignition system is energised and then left to idle whilst the engine test technician listens for any refinement issues and checks for leaks with a UV lamp. Sources said that each W12 is then tested for a minimum of 21.5 minutes and runs up to 3,800 rpm with a maximum load of 300 Nm. One in every one hundred engines receives a full eight-hour power test, achieving 6,000 RPM, and must achieve 900Nm.
The three tests that the Bacalar engine has already been put through are part of Bentley’s exceptional quality control processes. These testing procedures provide feedback on the quality of each engine and provide multiple checkpoints to catalogue the exact behaviour of each engine from the moment of manufacture. Since the installation of the three testbeds in 2002, over 100,000 W12 engines have been handcrafted in Crewe and passed through the test facility.
Technology Advancements
Bentley’s legendary 6.0-litre twin-turbocharged W12, created in 2002, has evolved into the latest iteration of the W12 engine used across today’s current model range. The unique W-configuration means that the engine is 24 percent shorter than an equivalent V12, benefitting packaging and maximising usable cabin space.
The latest generation of W12 was launched in the Bentayga in 2016. A thoroughly reworked engine included a crankcase 30 percent stronger than its predecessor, while the cylinder surfaces were coated to reduce friction and improve corrosion resistance. A low-alloy steel coating is applied to the bores using an Atmospheric Plasma Spray (APS) process.
The W12 combines high-pressure direct fuel injection (200 bar injection pressure) with low-pressure port injection (six bar). The combination of these two systems maximises refinement, lowers particulate emissions and optimises power and torque delivery.
Twin-scroll turbochargers minimise turbo response time and provide a more efficient exhaust package. The exhaust assemblies for the three front and three rear cylinders are separate from one another, which then feed the twin-scroll impellers. The turbocharger housing is welded directly to the exhaust manifolds and feature integrated speed sensors, allowing the engine to monitor turbo performance for maximum efficiency.
Bentley’s variable displacement system shuts down half of the engine under defined conditions. Intake and exhaust valves, fuel injection and ignition are all shut down on defined cylinders, with the engine running as a six-cylinder for improved efficiency. The system will run in this mode in gears three to eight, below 3,000 rpm and up to 300 Nm torque output.
The first Bacalar engine followed the same build process in Bentley’s centre of excellence for W12 engines, ensuring the same level of quality and expertise before final testing, sources added. (MT)
Sustainable, Recyclable Electric Motors
Bentley Motors has announced a three-year research study that aims to revolutionise the sustainability of electric motors. Supporting Bentley’s commitment to offering only hybrid or electric vehicles by 2026, the result could see recycled rare-earth magnets used in selected ancillary motors for the very first time.
The study, titled RaRE (Rare-earth Recycling for E-machines), intends to build on work completed at the University of Birmingham in devising a method of extracting magnets from waste electronics. The project will also scale up this process and repurpose the extracted magnetic material into new recyclable magnets for use within bespoke ancillary motors.
Adding to the sustainability benefits that RaRE will provide, the bespoke motors created through this method promise to minimise complexity through manufacture while supporting the development of the UK supply chain for both mass production and low volume components.
Dr Matthias Rabe, Member of the Board for Engineering, Bentley Motors, said, “As we accelerate our journey to electrification, offering only hybrid or electric vehicles by 2026, and full electric by 2030, it is important that we focus on every aspect of vehicle sustainability, including sustainable methods of sourcing materials and components. RaRE promises a step-change in electrical recyclability, providing a source of truly bespoke, low voltage motors for a number of different applications, and we are confident the results will provide a basis for fully sustainable electric drives.”
This study will run in parallel to Bentley’s OCTOPUS research programme, which aims to deliver a breakthrough in e-axle electric powertrains, utilising a fully integrated, free from rare-earth magnet e-axle that supports electric vehicle architectures.
As with OCTOPUS, RaRE is an OZEV funded project delivered in partnership with Innovate UK, which brings together the following partners with distinct roles and responsibilities. Bentley Motors will lead specification setting and test protocol development and support the design and manufacturing activities, while Hypromag will scale up the recycling processes developed at the University of Birmingham and convert the extracted powders to sintered magnets with properties designed around those required for the auxiliary motors. On its part, Unipart Powertrain Applications Ltd will lead the development of manufacturing scale-up routes to ensure facilities and processes defined are suitable for volume automotive manufacture.
Advanced Electric Machines Research Ltd will lead the motors’ design and development, while Intelligent Lifecycle Solutions Ltd will pre-process computer hard disk drives to remove the rare earth magnet containing components from the waste, which will be shipped to Hypromag for removal of the rare earth magnets. The University of Birmingham will provide cast alloys, which will be fed into Hypromag to blend with secondary materials to produce sintered magnets. (MT)
- State Bank of India
- SBI
- Uber
- Vehicle Finance
- Ride-Hailing Industry
SBI Collaborates With Uber To Offer Affordable Finance To Fleet Partners
- by MT Bureau
- November 22, 2024
State Bank of India (SBI) has entered into a strategic partnership with Uber to offer low-cost, tailored financing solutions as well as hassle-free loan disbursement to Uber’s fleet partners.
Both new and current Uber fleet partners will benefit from the partnership, which will enable them to easily grow their businesses and support the continued expansion of the ride-hailing sector in India. Easy loan disbursement will be made possible by the integration, assisting fleets in maintaining peak performance. The partnership guarantees that fleet partners can effectively manage their money and grow their businesses more quickly by utilising SBI's vast financial services network and Uber's technologies.
Vinay M Tonse, MD (Retail Business & Operations), SBI, said, “At SBI, we are committed to offering innovative financial products that support businesses across India. Our partnership with Uber highlights our focus on providing tailored solutions to a diverse set of customers. By offering affordable financing solutions to Uber fleet partners, we are helping to fuel the growth of the ridesharing sector while also ensuring that fleet owners have access to the capital they need to succeed.”
Prabhjeet Singh, President, Uber India & South Asia, said, “This partnership reinforces Uber’s commitment to its fleet partners and aligns with our vision of fostering growth in India’s ride sharing ecosystem. By providing affordable loans through SBI’s customised offerings, we aim to create an enabling environment that provides fleet partners with the tools they need to scale effectively and contribute to the overall development of the industry.”
- Toyota Kirloskar Motor
- Toyota India
- Sabari Manohar
- Toyota Innova HyCross
- hybrid
- electric vehicle
Toyota Innova HyCross Surpasses 100,000 Unit Sales Milestone
- by MT Bureau
- November 22, 2024
Toyota Kirloskar Motor, one of the leading passenger vehicle manufacturers, has attained a new wholesales milestone for its Innoa HyCross SUV.
Launched in November 2022, the Innova HyCross has crossed 100,000 unit sales milestone in India. The Innova HyCross is powered by the 5th Generation self-charging strong hybrid electric system and comes with a 2.0-litre 4-cylinder petrol engine and an e-drive sequential shift delivering 137 kW (186 PS) of power.
The hybrid system the company claims enables the Innova HyCross to operate 60 percent of the time in electric (EV) mode. The 2.0-litre petrol engine paired with a direct shift CVT in select variants, delivers 129 kW (174 PS) of power.
Sabari Manohar, Vice-President, Sales-Service-Used Car Business, Toyota Kirloskar Motor, said, “We are thrilled to share that the Innova HyCross has achieved milestone of 100,000 units. Heartfelt thanks to our customers for their trust and support as we continue to drive unparalleled mobility experiences. The hybrid technology option in the Innova HyCross continues to impress customers with its exceptional performance and remarkable mileage. Beyond efficiency, the HyCross strikes an ideal balance of space and luxury, making it a practical choice tailored to a family’s diverse needs. Its superior handling, unparalleled comfort, and top-notch safety features further amplify its appeal. Combined with Toyota’s trusted service standards, the Innova HyCross delivers a holistic ownership experience that resonates deeply with its growing base of satisfied customers.”
- 1934 Rolls-Royce 20/25 Limousine
- 1946 Singer Nine Roadster
- 1946 Bentley Mark VI
- 1947 Lincoln Continental V12 Convertible
- 948 Jaguar Mark IV
- AstaGuru
Iconic Vintage Cars Take Centre Stage at AstaGuru’s Upcoming ‘Classics of Motoring’ Auction
- by Rommel Albuquerque
- November 19, 2024
AstaGuru will showcase some of the world’s most coveted vintage and classic cars at its upcoming ‘Classics of Motoring’ auction, which will take place from 20 to 22 November 2024.
The auction will offer an exclusive collection of rare and meticulously curated vintage cars, providing a unique opportunity for collectors and automotive enthusiasts to acquire iconic pieces of automotive history.
The auction will feature an impressive lineup of vehicles, including a 1934 Rolls-Royce 20/25 Limousine, a 1946 Singer Nine Roadster, a 1946 Bentley Mark VI, a 1947 Lincoln Continental V12 Convertible and a 1948 Jaguar Mark IV, among others. These stunning machines, each a testament to the engineering marvels of their era, promise to transport bidders back in time, celebrating the golden age of motoring.
A Growing Market in India
AstaGuru’s Vintage and Classic Car Specialist, Muzammil Kazi, shared his insights on the evolution of the vintage car market in India. “We did our first auction in 2018, and it was a surprising success,” Kazi noted. “At the time, these cars weren’t available online or marketed in the way they are now. You’d have to go to a dealer or connect with a seller directly, which made it hard to find these rare cars. But our first auction was a hit, with all lots selling successfully.”
The vintage car market in India, according to Kazi, is far from saturated. “The market is 100 percent growing. These cars were imported to India in limited quantities, and you wouldn’t find brands like Ford or General Motors here in the same way as abroad. Cars like the Fiat, Ambassador, or old Maruti SS80 were more common, but the rare vintage gems we are showcasing today are difficult to find.”
Kazi also emphasised that the scarcity of such cars means the market still has significant potential for growth. “The cars we have on display today are curated from various collectors across India, and it’s very rare to see them come together in one auction,” he explained.
Safeguarding Online Bidders
AstaGuru’s online auction platform also ensures that bidders are fully protected throughout the process. “We have a strong set of terms and conditions for the cars we sell,” Kazi explained. “We only auction cars with up-to-date paperwork and in proper running condition. Once a car is sold, we ensure the buyer receives it only after the seller submits a No Objection Certificate (NOC), making the transaction smooth and secure.”
Record-Breaking Bids
The auction has seen some impressive bids in the past. Kazi highlighted one of the highest bids to date: a Mercedes-Benz 111 230S, which was estimated at INR 2.1 million but eventually sold for INR 6.8 million. Another standout was a Rolls-Royce, which had an estimated value of INR 7-8 million but sold for a remarkable INR 18 million.
A Rare Opportunity for Collectors
For classic car enthusiasts and connoisseurs, the ‘Classics of Motoring’ auction represents an unmissable opportunity to acquire some of the rarest and most beautifully restored vehicles in the world. With its rich history and pedigree, each car in the auction is a testament to the artistry and engineering excellence that defined its era. Whether a seasoned collector or a newcomer to the world of vintage automobiles, this event promises a truly memorable experience for all involved.
As the vintage car market continues to grow in India, AstaGuru is setting the stage for an exciting future for collectors and car lovers alike. The ‘Classics of Motoring’ auction is expected to draw attention from around the world, offering a rare chance to own a piece of automotive history.
- Jaguar
- Tata Motors
- Copy Nothing
- Sir William Lyons
- Professor Gerry McGovern OBE
- Miami Art Week
- Rawdon Glover
Jaguar Unveils New Brand Identity
- by MT Bureau
- November 19, 2024
Tata Motors-owned British luxury car brand Jaguar has unveiled its new brand identity, which it says recaptures an ethos to Copy Nothing that traces its roots back to the words of its founder, Sir William Lyons.
The new identify is based on Exuberant Modernism, a creative philosophy, which the company says underpins all aspects of the new Jaguar brand world.
Professor Gerry McGovern OBE, Chief Creative Officer, Jaguar, said, “Jaguar has its roots in originality. Sir William Lyons, our founder, believed that ‘A Jaguar should be a copy of nothing’. Our vision for Jaguar today is informed by this philosophy. New Jaguar is a brand built around Exuberant Modernism. It is imaginative, bold and artistic at every touchpoint. It is unique and fearless. This is a reimagining that recaptures the essence of Jaguar, returning it to the values that once made it so loved, but making it relevant for a contemporary audience. We are creating Jaguar for the future, restoring its status as a brand that enriches the lives of our clients and the Jaguar community.”
The four symbols of change – Device Mark, Strikethrough, Exuberant Colours and Makers Marks - each representing the future design philosophy for the luxury carmaker.
Device Mark celebrates modernism through the geometric form, symmetry and simplicity.
Strikethrough sees the linear graphic generate a unique presence and an immediately recognisable visual for Jaguar.
The Exuberant use of colours marks a cornerstone of Jaguar’s new brand identity.
Makers Mark consists of the newly reimagined Jaguar ‘leaper’, which the luxury brand said is part of its mark of provenance.
On 2 December 2024, Jaguar will present its first global public installation under its new brand philosophy at the Miami Art Week.
Rawdon Glover, Managing Director, Jaguar, said, “To bring back such a globally renowned brand we had to be fearless. Jaguar was always at its best when challenging convention. That ethos is seen in our new brand identity today and will be further revealed over the coming months. This is a complete reset. Jaguar is transformed to reclaim its originality and inspire a new generation. I am excited for the world to finally see Jaguar.”
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