|Manufacturer||Spark Racing Technologies|
|Chassis||Carbon Fibre/Aluminium monocoque|
|Battery||Williams Advanced Engineering|
|Length||5,000 mm (196.850 in)|
|Width||1,700 mm (66.929 in)|
|Height||1,250 mm (49.213 in)|
|Weight||780 kg (1,719.61 lb)|
|Formula E Record|
Generation 3 is the initial project name for the third generation of ABB FIA Formula E Championship base chassis, set to debut at the start of the 2022/23 season. The initial tenders for the new specification, which included major changes to the chassis, powertrains, battery and tyres, were opened on 16 December 2019, and would be won by Hankook (tyres), Williams Advanced Engineering (battery) and Spark Racing Technologies (chassis).
The Generation 3 rulebook was set to be implemented for the 2021/22 season, although this was pushed back by a season due to the Covid-19 Pandemic. The final total cost of each Gen 3 car was to be limited to €340,000, including chassis, battery and powertrain.
The major development goal for Generation 3 would be to implement fast-charging, with an initial plan to allow 30 second fast-charging for in-race pitstops. This came alongside plans to increase power out-put to 350 kW in qualifying/Attack Mode, a reduction in size and weight, and increase re-gen power.
The initial tender issued by the FIA requested that applicants "elevate the current car’s battery technology through improved energy density, life cycle, power capability and durability". There would also be a requirement to ensure that the battery could be fast-charged at a 450 kW or 600 kW rate, as well as a standardised charging rate at 80 kW. The higher 600 kW rate was later approved by the FIA after discussions with the twelve 2019/20 entrants, with a complete battery system to be cost limited to €250,000 with all parts standardised.
Fast-charging was a major goal for the new ruleset, which was tentatively announced by CEO Jamie Reigle shortly after he took the role during the 2019/20 season. The FIA later approved a 30 second fast-charging goal for the Generation 3 ruleset, which would allow partial to full re-charge of the battery during a mid-race pitstop. A combined agreement between Teams, Formula E Holdings and the FIA would go on to approve a 600-800 kW recharge rate for fast-charging, while standard charging was set at 80 kW, and was to fully charge an empty battery within 45 minutes.
Williams Advanced Engineering emerged as the favourites to supply the Gen 3 battery, having initially supplied the battery systems for the Spark-Renault SRT_01E. This came after McLaren Applied Technologies and Atieva, the joint suppliers of the battery systems for the Spark SRT05e submitted separate bids after their partnership disintegrated during the 2019/20 season. Williams were officially confirmed as the battery suppliers for Generation 3 on 1 July 2020.
FE Holdings would later announce that long-term title partners of the Championship ABB would provide the fast-charging infrastructure for the Gen 3, with standardised components for the entire field.
Power output and Regen
The Generation 3 concept was to implement regenerative braking systems on both the front and rear axles, increasing the potential amount of energy that could be harvested. The combined target would be 600 kW of regen, with 350 kW generated from the rear axle, and 250 kW from the front, via an MGU system. An initial secondary target of 450 kW was dropped after discussions with teams during the tender process, which agreed to the higher in-put after an arrangement to use more standardised, and hence cheaper, parts.
In terms of power output the Generation 3 tender initially listed a race mode power of 300 kW, while qualifying/Attack Mode would be set at 350 kW. This was later approved by teams after meetings during the 2019/20 season, and hence resulted in the secondary, conservative goal of 250 kW in race mode and 300 kW in qualifying mode rejected. There was also an agreement to maintain a RWD format for the series, rather than adopt a 4WD to reduce costs.
Chassis and Weight
The tender for the Generation 3 rulebook would include a new standardised chassis for the series, to replace the Spark SRT05e, which was homologated for the 2018/19 to 2021/22 seasons. This was done to ensure that manufacturers would be unable to carry over significant parts from the "Gen 2" ruleset, while also enhance the strength in the chassis to cope with having regen equipment at the front of the car. Furthermore, each chassis would have to have the capability of competing in "up to 18" race meetings in a single season, as well as six days of official testing.
The minimum weight of the Gen 3 car was to be reduced to 780 kg, after the Spark SRT05e weighed in at 900 kg including driver and battery. There would also be considerations into modifying the weight distribution and shape of the batteries, as well as the structure of the monocoque. Spark Racing Technologies were announced as the winners of the tender on 1 July 2020, and were again expected to work alongside Dallara to construct the chassis.
The Gen 3 ruleset was to use treaded tyres on either 18" or 20" wheels rims, and would have to complete a full race meeting including all practice and qualifying sessions. This was akin to the tenders issued for both the Gen 1 and Gen 2 rulesets, with a focus on reducing rolling resistance and tyre wear. On 1 July 2020 it was announced that Hankook had won the tyre tender, a surprise victory over Michelin whom had supplied the series since its inception in 2014.
Images and Videos:
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Sam Smith, 'HANKOOK GRABS FORMULA E TYRE DEAL FOR GEN3', therace.com, (The Race, 01/07/2020), https://the-race.com/formula-e/hankook-grabs-formula-e-tyre-deal-for-gen3/, (Accessed 01/07/2020)
- ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 2.14 2.15 2.16 Alex Kalinauckas, 'Gen3 car to be quicker and lighter, with fast-charge pitstops', motorsport.com, (Motorsport Network, 16/12/2019), https://www.motorsport.com/formula-e/news/gen3-car-faster-lighter-pitstops/4614026/, (Accessed 18/06/2020)
- ↑ Cite error: Invalid
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- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 Sam Smith, 'FORMULA E’S GEN3 REGENERATION CONCEPT AGREED', the-race.com, (The Race, 18/06/2020), https://the-race.com/formula-e/formula-es-gen3-regeneration-concept-agreed/, (Accessed 18/06/2020)
- ↑ Alex Kalinauckas, 'Fast-charging idea could bring back Formula E pitstops', motorsport.com, (Motorsport Network, 31/10/2019), https://www.motorsport.com/formula-e/news/fast-charging-pitstop-return-gen3/4589738/, (Accessed 18/06/2020)
- ↑ 6.0 6.1 Sam Smith, 'WILLIAMS LIKELY TO RECLAIM FORMULA E BATTERY DEAL FOR GEN3', the-race.com, (The Race, 16/06/2020), https://the-race.com/formula-e/williams-likely-to-reclaim-formula-e-battery-deal-for-gen3/, (Accessed 18/06/2020)
- ↑ William Dodds, 'ABB to supply charging technology to Formula E Gen 3 cars', formulaezone.com, (Formula E Zone, 16/07/2020), https://formulaezone.com/2020/07/16/abb-supply-charging-technology-formula-e-gen-3-cars/, (Accessed 16/07/2020)