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Club-E:  the New Class","formula-club-e-the-new-class","article/formula-club-e-the-new-class",{"_uid":557,"date":558,"tags":559,"editor":560,"content":570,"excerpt":578,"featured":50,"reporter":882,"_editable":886,"component":887,"seo_title":553,"categories":888,"visibility":895,"author_company":49,"featured_image":896,"seo_description":578,"author_full_name":49,"author_job_title":49,"formattedDate":901,"formattedArticleDate":902},"6396b1d8-c585-4025-9b84-e3a2532dcd0a","2016-07-21 00:00",[],[561],{"slug":562,"name":563,"content":564},"didi-bostock","Didi Bostock",{"job_title":565,"image":566,"bio":568,"linkedin":569},"Editor - Energy Transition & Economics",{"filename":567},"https://a.storyblok.com/f/287943243085208/512x512/2c5ca5c1a3/didi-bostock.jpeg","Didi is the Energy Transition & Economics Editor at Benchmark, covering a broad range of markets across the energy transition. His remit spans from downstream sectors such as BESS and EVs, through to midstream such as new technologies and battery production, to upstream critical minerals mining. He also leads on financial analysis across these supply chains, alongside in-depth policy analysis.\n","https://www.linkedin.com/in/didi-bostock-656342198/",{"type":571,"content":572},"doc",[573,580,585,590,593,598,603,610,615,620,623,628,633,638,643,648,653,656,661,666,671,676,681,686,691,696,701,706,709,714,719,724,729,734,739,744,749,754,759,764,769,772,777,782,787,790,795,800,805,810,815,820,823,828,833,838,843,846,854,861,868,875],{"type":574,"attrs":575,"content":576},"paragraph",{"textAlign":49},[577],{"text":578,"type":579},"Oxford Brookes University and the world’s largest racing car manufacturer, Dallara Automobili, introduce The Formula Club-E Development Project and the impact this could have on motorsport as a whole","text",{"type":574,"attrs":581,"content":582},{"textAlign":49},[583],{"text":584,"type":579},"With the rise in popularity of Formula E, electric vehicle racing is beginning to conquer the world of motorsport – bringing the support of not only seasoned motorsport fans, but also new, fresh to the scene technology enthusiasts. However, while fans are currently dazzled by the fantastic display of racing action and technology excellence, the time will inevitably come when they too will want a taste of the action.",{"type":574,"attrs":586,"content":587},{"textAlign":49},[588],{"text":589,"type":579},"Motorsport has always been characterised by its entry-level formulae. These classes have always been there, feeding the bigger classes by providing a stage for new talent to develop and show itself to team managers eager to sign the next champion. Not only that, but lower formulae are also where racing enthusiasts can emulate their idols. Either way, both the aspiring professional driver and the hobbyist have the opportunity to race alternative versions of the desired and admired racing cars of higher formulae.",{"type":574,"attrs":591,"content":592},{"textAlign":49},[],{"type":574,"attrs":594,"content":595},{"textAlign":49},[596],{"text":597,"type":579},"Despite the less advanced chassis and the smaller engines making for slower and, more importantly, safer cars they are still capable of putting everyone on the edge of their seats with close racing action and highly disputed contests. Single make championships excel in providing race action largely as a result of every driver on track having access to the same equipment. Not only does this format lend itself to exciting racing that both fans and drivers love, but it does so at a sensible cost – foregoing the need for expensive technological development essential to success in open formulae.",{"type":574,"attrs":599,"content":600},{"textAlign":49},[601],{"text":602,"type":579},"The question is, where can the electric vehicle enthusiast find their share of the action? Where is the starting formula that allows the fans to have a taste of what electric racing is all about? The answer to these questions is currently being developed at Oxford Brookes University (OBU) in collaboration with one of the world’s largest racing car manufacturers: Dallara Automobili.",{"type":604,"attrs":605,"content":607},"heading",{"level":606,"textAlign":49},3,[608],{"text":609,"type":579}," Plugging the gap",{"type":574,"attrs":611,"content":612},{"textAlign":49},[613],{"text":614,"type":579},"Back in 2014 the OBU Department of Mechanical Engineering and Mathematical Sciences received a visit from Andrea Toso – Head of R&D and US Racing Business Leader at Dallara. This visit would kick-start a project that will fulfil electric racing dreams everywhere.",{"type":574,"attrs":616,"content":617},{"textAlign":49},[618],{"text":619,"type":579},"OBU’s facilities include equipment such as a Scanning Electron Microscope, 4 engine dynamometer test cells, a wind tunnel and a 4 Post dynamic test rig. OBU has been specialsing in motorsport for some time and has one of the top UK Formula SAE teams, strong industrial partnerships and recognition from leading motorsport and automotive manufacturers.",{"type":574,"attrs":621,"content":622},{"textAlign":49},[],{"type":574,"attrs":624,"content":625},{"textAlign":49},[626],{"text":627,"type":579},"Having recognised a gap in the market Dallara, the manufacturer of every Formula E car on the grid, approached OBU’s Department of Mechanical Engineering and Mathematical Sciences with the idea of developing an affordable electric racing vehicle.",{"type":574,"attrs":629,"content":630},{"textAlign":49},[631],{"text":632,"type":579},"The challenge was promptly accepted and so started one of the most ambitious projects for OBU: The Formula Club-E Development Project. Every detail of the vehicle from chassis dynamics, powertrain options down to the formula and business model were to be developed by Oxford Brookes’ MSc students, guided at every step of the way by experts from Dallara. To ensure the success of the project at all levels the motorsport vehicle design expertise of the Department of Mechanical Engineering and Mathematical Sciences was supported by business strategy and development knowledge from the Business School. This breadth of knowledge, coupled with the chance to work on a real, large scale project, provides an excellent learning opportunity for the students and, crucially, prepares them for employment.",{"type":574,"attrs":634,"content":635},{"textAlign":49},[636],{"text":637,"type":579},"The Department is very keen on this – 92% of graduates go on to employment, many in F1, Formula E and other major suppliers to the automotive industry.",{"type":574,"attrs":639,"content":640},{"textAlign":49},[641],{"text":642,"type":579},"The project is scheduled for four years and is now midway through completion. More than 100 postgraduate MSc students will have collectively contributed over 60,000 hours for the success of this project by the end of the fourth year.",{"type":604,"attrs":644,"content":645},{"level":606,"textAlign":49},[646],{"text":647,"type":579}," Electric fences to jump",{"type":574,"attrs":649,"content":650},{"textAlign":49},[651],{"text":652,"type":579},"The design, manufacturing and commercialisation of a vehicle and racing series is a challenging task at the best of times and it only becomes more difficult when the vehicle in question is electric. Plenty of organisational and engineering challenges arise in this area – some from the lack of knowledge and experience with the electric powertrain, some from the uncertainty of the customers’ reaction to a technology in its relative infancy.",{"type":574,"attrs":654,"content":655},{"textAlign":49},[],{"type":574,"attrs":657,"content":658},{"textAlign":49},[659],{"text":660,"type":579},"The Business School helped to support the task of characterising the market and determining the business model most likely to succeed. A thorough analysis of conventional series and vehicles was performed to position Formula Club-E in the market as attractively as possible.",{"type":574,"attrs":662,"content":663},{"textAlign":49},[664],{"text":665,"type":579},"The performance of electric cars is largely unknown when compared to their internal combustion counterparts, and there is a serious concern regarding the safety of these systems – with careful precautions being taken at this stage.",{"type":574,"attrs":667,"content":668},{"textAlign":49},[669],{"text":670,"type":579},"The level of detail of the analysis undertaken highlights the commitment to this project – making it impossible to ignore this as a serious bid for the future of affordable electric racing.",{"type":604,"attrs":672,"content":673},{"level":606,"textAlign":49},[674],{"text":675,"type":579}," Defining the winning Formula",{"type":574,"attrs":677,"content":678},{"textAlign":49},[679],{"text":680,"type":579},"The possibilities that arise from starting with a blank sheet can soon turn into a conceptually confusing product if care is not taken to define the right goals. OBU is all too aware of this and very early in the project started to define the character of this vehicle. Developed for a less experienced or even amateur group of drivers, the driving experience had to be simplified. All too often nowadays cars are equipped with so much technology that the driving experience is diluted by the devices implemented to make the car faster. Even though the lowest lap time may be the ultimate goal for some, others are discouraged by all the experience, preparation and budget that a fast car requires.",{"type":574,"attrs":682,"content":683},{"textAlign":49},[684],{"text":685,"type":579},"With this in mind, the Formula Club-E is meant to feature the very latest technology and yet be fundamentally simple, focusing on the enjoyment of the driver at manageable speeds for the less experienced. Regardless of having a clear idea of their goal, Oxford Brookes could not risk getting this formula wrong. As such, not only were most ideas considered – they were fully developed and tested. This approach eliminates any doubts that the final design will be anything other than the optimal design.",{"type":574,"attrs":687,"content":688},{"textAlign":49},[689],{"text":690,"type":579},"It is important to realise just how complex a study like this is. Every parameter tested is coupled with at least one other area of the vehicle, making this a multi-dimensional problem of optimisation. The cooperation between groups of different development areas is paramount.",{"type":604,"attrs":692,"content":693},{"level":606,"textAlign":49},[694],{"text":695,"type":579}," Simulation & batteries",{"type":574,"attrs":697,"content":698},{"textAlign":49},[699],{"text":700,"type":579},"None of this would be possible without extensive use of simulation tools. Starting from a solid base of expertise in vehicle simulation and modelling, the Department of Mechanical Engineering and Mathematical Sciences continues to push for better, faster and more reliable simulations.",{"type":574,"attrs":702,"content":703},{"textAlign":49},[704],{"text":705,"type":579},"DYMOLA was adopted as a tool to build the advanced ‘virtual prototype’ models required. Upon completion and assembly of all the individual models, testing will be undertaken at the state of the art Dallara Driver-in-Loop simulator, allowing test drivers to experience the vehicle before it comes to reality as a physical product. Feedback on the vehicle performance can be gathered and improvements tried before production costs are incurred.",{"type":574,"attrs":707,"content":708},{"textAlign":49},[],{"type":574,"attrs":710,"content":711},{"textAlign":49},[712],{"text":713,"type":579},"One of the areas where knowledge is evolving the most is undoubtedly the powertrain. The motor and batteries are large, expensive, heavy and crucial components that require the utmost care when being specified. One of the benefits of Formula Club-E will be to help organisations like Tesla raise public awareness and acceptance of electric vehicle technology – though it has to be recognised that significant challenges for mass take-up of the technology exist in the supply chain, such as the supply of rare minerals.",{"type":574,"attrs":715,"content":716},{"textAlign":49},[717],{"text":718,"type":579},"After considering torque vectoring strategies, a single motor was determined to be the ideal solution in view of efficiency and cost control. Most suitable motor options available in the market have been simulated.",{"type":574,"attrs":720,"content":721},{"textAlign":49},[722],{"text":723,"type":579},"However, since this is a constantly evolving technology new solutions are always being considered when they become available.",{"type":574,"attrs":725,"content":726},{"textAlign":49},[727],{"text":728,"type":579},"As far as powertrain performance is concerned, currently the biggest limiting component is the batteries. With around 1/30th of the energy density of petrol they make up a large portion of the vehicle mass.",{"type":574,"attrs":730,"content":731},{"textAlign":49},[732],{"text":733,"type":579},"Furthermore, the requirements for batteries in motorsport are also very extreme with very high power draw and charge making for aggressive usage cycles. The batteries need to be charged quickly between races, and also absorb and store the energy from regenerative braking while in use.",{"type":574,"attrs":735,"content":736},{"textAlign":49},[737],{"text":738,"type":579},"Within this area, there are significant materials science challenges – but the constant need in motorsport to push the boundaries of performance makes it the ideal test bed for the development of materials and disruptive new technologies.",{"type":574,"attrs":740,"content":741},{"textAlign":49},[742],{"text":743,"type":579},"The importance of choosing the appropriate batteries becomes even clearer when one realises that the team even simulates where and how the vehicle will be raced. This is due to different energy levels and conditions encountered at different locations.",{"type":604,"attrs":745,"content":746},{"level":606,"textAlign":49},[747],{"text":748,"type":579}," Battery safety",{"type":574,"attrs":750,"content":751},{"textAlign":49},[752],{"text":753,"type":579},"Due to vehicle dynamic considerations and the amount of mass involved, batteries have to be placed in a location that will place the centre of gravity (CoG) in a favourable location. When it comes to the influence of the CoG on the dynamic behaviour of the vehicle, the more central and lower the position the better. Although using a battery composed of cells can allow for some freedom in configurations, there is one major aspect that somewhat limits the creativity – safety.",{"type":574,"attrs":755,"content":756},{"textAlign":49},[757],{"text":758,"type":579},"Motorsport has been making huge efforts to ensure the safety of the drivers, marshals and public. Electric batteries are not necessarily any more or less dangerous than a full tank of fuel, but battery-specific considerations have to be taken into account to ensure the level of safety required. The speed at which the energy stored can inflict severe injuries makes containing that energy in the event of an accident one of the biggest priorities. In view of the priority for safety, the arrangement of the cells has been kept in a more traditional configuration, which in turn led to a solution that consists of a single unit containing all the cells behind the driver.",{"type":574,"attrs":760,"content":761},{"textAlign":49},[762],{"text":763,"type":579},"Even though it may be more detrimental to the vehicle dynamics than a modular design that could be spread around the driver, this solution is more robust, and more likely to meet safety regulations.",{"type":574,"attrs":765,"content":766},{"textAlign":49},[767],{"text":768,"type":579},"Crash scenarios have been considered and simulated to analyse the structural behaviour of the system, and instantaneous shut-off circuits relying on monitoring of power usage and demands have been developed. The crash simulations were run in LS-DYNA following FIA guidelines for safety requirements – once again highlighting the attention to detail employed throughout this project.",{"type":574,"attrs":770,"content":771},{"textAlign":49},[],{"type":574,"attrs":773,"content":774},{"textAlign":49},[775],{"text":776,"type":579},"Oxford Brookes also prepared the vehicle for future technologies and regulations.",{"type":574,"attrs":778,"content":779},{"textAlign":49},[780],{"text":781,"type":579},"Should there be a need for it, and permission from regulatory bodies, the Formula Club-E is designed to allow for battery changes during the race, in true ‘refuelling’ style. The safety challenges here are so high that even the pinnacle of the sport – Formula E – has opted not to use it for the time being on grounds of safety. As a consequence, two cars per driver are required with a change of cars mid-race.",{"type":574,"attrs":783,"content":784},{"textAlign":49},[785],{"text":786,"type":579},"The same scenario would not be sustainable for a low budget formula.",{"type":574,"attrs":788,"content":789},{"textAlign":49},[],{"type":574,"attrs":791,"content":792},{"textAlign":49},[793],{"text":794,"type":579},"To incorporate a removable battery design Oxford Brookes’ students have not only had to cope with existing challenges but also with the ones the solution itself creates. In other words, from the moment a battery pack is sealed, in order to guarantee safety, something else becomes a hot topic – temperature control.",{"type":604,"attrs":796,"content":797},{"level":606,"textAlign":49},[798],{"text":799,"type":579}," Cooling the batteries",{"type":574,"attrs":801,"content":802},{"textAlign":49},[803],{"text":804,"type":579},"Motors and batteries have a temperature window of operation relatively small with exponentially decreasing performance when operating outside of range. If control over the temperature is lost the damage can build up to severe failures of the system.",{"type":574,"attrs":806,"content":807},{"textAlign":49},[808],{"text":809,"type":579},"Not leaving a single detail to chance, a considerable amount of effort has been made to understand the heat transfer interactions in place.",{"type":574,"attrs":811,"content":812},{"textAlign":49},[813],{"text":814,"type":579},"Extensive thermal computational fluid dynamics, finite element analysis and DYMOLA simulations were performed, with expert training and support in the use of the software provided by Claytex Services.",{"type":574,"attrs":816,"content":817},{"textAlign":49},[818],{"text":819,"type":579},"Many hours of modelling work later, a simulation capable of calculating real-time component temperatures was completed.",{"type":574,"attrs":821,"content":822},{"textAlign":49},[],{"type":574,"attrs":824,"content":825},{"textAlign":49},[826],{"text":827,"type":579},"This model will be one of many running simultaneously in the driver-in-loop Dallara simulator, providing valuable data with a resolution down to each individual battery cell.",{"type":574,"attrs":829,"content":830},{"textAlign":49},[831],{"text":832,"type":579},"Currently simulations are being carried out for charge/discharge cycles for the duration of the whole event, including track driving, energy recovery and battery recharging with the vehicle stationary. More than a concept The scale of the project, coupled with analysis that is being undertaken in Oxford Brookes and Dallara’s Formula Club-E project, conveys a sense of purpose – of something that will not settle for being a mere concept.",{"type":574,"attrs":834,"content":835},{"textAlign":49},[836],{"text":837,"type":579},"Currently at the midway point, the project has a few questions to be answered and components to be finalised. The simulation models developed are prepared for this, and alternative emerging technologies can now be rapidly simulated and evaluated, thus the team are actively looking for partners to help contribute to the project. In fact, they have much industrial support for the project, including some famous names such as David Brabham, Allan McNish and Petter Solberg.",{"type":574,"attrs":839,"content":840},{"textAlign":49},[841],{"text":842,"type":579},"The answer to budget electric racing is coming from two leading organisations in Motorsport engineering: Oxford Brookes University and Dallara Automobili.",{"type":574,"attrs":844,"content":845},{"textAlign":49},[],{"type":574,"attrs":847,"content":848},{"textAlign":49},[849],{"text":850,"type":579,"marks":851}," Authors:",[852],{"type":853},"italic",{"type":574,"attrs":855,"content":856},{"textAlign":49},[857],{"text":858,"type":579,"marks":859}," Miguel Fernandez Ferreira, Technical Instructor, Department of Mechanical Engineering & Mathematical Sciences, Oxford Brookes University ",[860],{"type":853},{"type":574,"attrs":862,"content":863},{"textAlign":49},[864],{"text":865,"type":579,"marks":866},"Andrew Bradley, Senior Lecturer, Department of Mechanical Engineering & Mathematical Sciences, Oxford Brookes University",[867],{"type":853},{"type":574,"attrs":869,"content":870},{"textAlign":49},[871],{"text":872,"type":579,"marks":873}," Andrea Toso, Head of R&D and US Racing Business Leader, Dallara Automobili",[874],{"type":853},{"type":574,"attrs":876,"content":877},{"textAlign":49},[878],{"text":879,"type":579,"marks":880}," Gareth Neighbour, Head of the Department of Mechanical Engineering & Mathematical Sciences, Oxford Brookes University",[881],{"type":853},[883],{"slug":562,"name":563,"content":884},{"job_title":565,"image":885,"bio":568,"linkedin":569},{"filename":567},"\u003C!--#storyblok#{\"name\": \"article\", \"space\": \"\", \"uid\": \"6396b1d8-c585-4025-9b84-e3a2532dcd0a\", \"id\": \"\"}-->","article",[889,892],{"slug":890,"name":891},"batteries","Batteries",{"slug":893,"name":894},"critical-minerals","Critical Minerals","private",{"id":49,"alt":897,"name":897,"focus":897,"title":897,"source":897,"filename":898,"copyright":897,"fieldtype":899,"meta_data":900,"is_external_url":51},"","https://a.storyblok.com/f/287943243085208/61feff7e3e/bm-screen-shot-2016-07-21-at-182558.png","asset",{"alt":897,"title":897,"source":897,"copyright":897},"Jul 21, 2016","21st July 2016",[],[],1792773947262]