The Excessive H hydrogen sequence is about to permit street automobile corporations to carry their very own gas cell applied sciences, in a choice made forward of the deliberate inaugural season this yr.
Excessive H is an off-road dash race sequence created by Formulation E boss Alejandro Agag and sanctioned because the FIA Excessive H World Cup. All opponents will use the Pioneer 25, a bespoke electrical automobile constructed by Spark Racing Know-how that runs on a hydrogen-electric powertrain.
The plan all through the Pioneer 25’s growth had been for all vehicles to make use of the identical hydrogen gas cell stack provided by Symbio, a French firm that’s a part of the Stellantis group.
Nonetheless, the scenario modified in early January after current discussions involving the organisers, potential producers and the FIA.
BMW, Honda, Hyundai and Toyota, which gives the spec hydrogen gas tanks, are amongst these enthusiastic about bringing their very own gas cell know-how, in line with Excessive H technical director Mark Grain.
‘The choice behind that’s, if now we have a single gas cell provider, that’s advancing their gas cell,’ Grain advised Racecar Engineering.
‘Whereas if we open it up, we imagine we’re going to open the chance for lots extra gas cell growth throughout completely different producers. That develops the entire breed.
‘If we simply stick with the one gas cell provider, it would advance that, however this manner we’re sharing the data and permitting gas cells to develop sooner throughout completely different suppliers.’
Addressing the timing of the choice shortly earlier than the primary Excessive H season is because of begin, Grain mentioned: ‘We needed to begin someplace. We secured a provider from Symbio, and we’ve executed that growth.
‘To have tried to do all of that [manufacturer fuel cell integration] – as a result of there was the remainder of the automobile to develop as effectively – on the identical time, it will have required completely different chassis and variants and so forth.
‘We needed to be laser-focused on creating the automobile on the Symbio bundle. After which after that, contemplate it, and open it up.’
The gas cell stack is on the coronary heart of the Pioneer 25: hydrogen gasoline gas is saved in twin tanks and injected into every cell, the place an electrochemical response breaks down full hydrogen molecules and makes use of their extracted electrons to generate electrical power. A number of cells are bunched collectively to type a stack.
In Excessive H, {the electrical} power from the cells is especially used to cost the 325kW spec Fortescue Zero battery pack, located on the ground of every Pioneer 25. The battery then feeds a pair of Helix electrical motors, which ship round 400kW of energy to the wheels.
Excessive H is eager for street automobile producers to carry gas cell know-how they’ve already developed and showcase its capacity to deal with tough terrain, together with jumps. The businesses that Grain talked about have already been energetic in testing or implementing gas cells.
The method echoes Excessive H’s ‘street to race, again to street’ philosophy that was initially utilized with the Symbio gas cell, which was based mostly on know-how designed for business autos.
It stays to be seen if opening up gas cell provide will make the sequence extra engaging to main producers. Nonetheless, Grain doesn’t imagine that it will lead to excessive spending on new growth.
‘If you concentrate on street to race and again to street, we’re speaking about taking models which might be off the shelf,’ he mentioned. ‘We’re speaking to producers about bringing current know-how and simply having the ability to showcase it.
‘Hydrogen gas cells are cool items of equipment. It’s not about growth of bespoke, racing hydrogen gas cells costing thousands and thousands. We’re very assured that we’re not opening the doorways to ridiculous spend.’
Producers can even customise the bodywork of the Pioneer 25 to offer their automobile a singular design. This was additionally allowed in Excessive E, though not everybody took up the supply.
Past that and the gas cell, Excessive H has no plans to open different components of the automobile to the producers.
‘Under no circumstances. That’s undoubtedly not on the playing cards,’ acknowledged Grain. ‘It’s a chassis that comes from Spark, so it’s a single-make championship nonetheless.
‘However if you’re a producer and also you need to set up your gas cell into that chassis, that’s nice. Like we did in Excessive E the place you could possibly add styling cues to the bodywork and headlamps, which is just like the ‘face’ of the automobile. These are very low price.’
The change of plan to permit bespoke producer gas cells comes after the Pioneer 25 was developed solely with the Symbio stack.
‘We’re the provider of the gas cell for the automobile, however we’re not unique,’ acknowledged Serge Grisin, motorsport director at Symbio.
‘Based mostly on the way in which it really works on the automobile, the gas cell is offering the power. However the efficiency is restricted to {the electrical} engine. To be sincere, I don’t know precisely what the curiosity of a gas cell maker may very well be, the place they will differentiate.
‘For us, we’re open to the competitors. Now we have already had quite a lot of info and suggestions in the previous couple of months about the previous couple of checks with the racecar.’
The technical laws have but to be finalised after this newest growth, so the opening of gas cell provide is technically a proposal for now. Excessive H administration travelled to Geneva for conferences with the FIA in early January and the 2 our bodies are set to proceed engaged on their plans within the coming weeks.
‘We’re nonetheless having these conversations, so in all probability not clever to speak about these issues simply but, earlier than myself and the FIA have one thing in concrete to debate later,’ mentioned Grain.
‘It was tremendous collaborative with the FIA [last] Monday. Their enthusiasm is powerful.
‘Definitely for me, working with the promoter in a championship the place I used to be beforehand a competitor; working with the FIA and the way we’re going to carry the world’s first hydrogen championship, could be very encouraging.’
Grain instructed that it ‘wouldn’t be unattainable’ for a street automobile producer’s gas cell to be prepared to look within the first season of Excessive H, regardless of a slender timescale.
‘We’ve received sturdy curiosity, I believe is one of the simplest ways we will reply that. There are timescales to consider, if you concentrate on packaging one thing and going on the market to show it out.
‘It may be a problem, however it wouldn’t be unattainable. Now we have received sturdy curiosity and we’re having sturdy conversations regularly.’
No crew bulletins have but been made for the inaugural Excessive H season, whereas the ultimate calendar can be nonetheless to be confirmed. Spark just lately accomplished the primary manufacturing run of ten Pioneer 25s, having frozen the design following an intensive check programme.
Excessive H’s electrical off-road predecessor, Excessive E, ran for 3 full seasons earlier than ending halfway by way of 2024 because the organisers pooled their focus into creating the FIA’s first hydrogen sequence.
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