Formula E car

A Formula E car is an open-wheel auto racing electric car, powered by an electric motor. A Formula E car is designed to take part in the FIA Formula E Championship.

António Félix da Costa's Andretti-BMW car at the 2017 New York City ePrix

Technical specifications

Even though the FIA originally planned for the category to be open to various chassis manufacturers,[1] the only licensed Formula E model, for the inaugural season (2014–2015), was the Spark-Renault SRT 01E. The electric components are assembled by Renault[2] while the chassis is designed by Dallara, and the car is assembled by Spark Racing Technology. The SRT01E was later opened up for private development by the teams in Season 2 (2015–16), for the motor, gearbox and suspensions[3]

Spark-Renault SRT01E Specifications:

  • 0–100 km/h : 3 s (approximately)
  • Max speed: 225 km/h (governed by FIA)

However, subsequently, it was decided by the FIA and Formula E Holdings to keep to a specification chassis, in March 2016, in a bid to keep costs in low in the category.[4][5] The tender for the 2nd Generation car was won by Spark Racing Technology.[6]

Spark SRT05e Specifications:

  • 0–100 km/h : 2.8 s (approximately)
  • Max Speed: 280 km/h (FIA Regulated)
Chassis
Materials Carbon fiber and aluminium structure
Body
Materials Kevlar and carbon fiber
Aerodynamic elements Spoiler and airdam


Motor
Engine Season 1: McLaren Electronic Systems

Season 2 Onwards: Various
Center back position

SRT01E: Max power: 200 kW, (180 hp in economy mode; 270 hp in qualification mode).

SRT05E: Max power: 250 kW, (270 hp in race mode, 301 hp in Attack Mode,[7] 335 HP in Fanboost mode[8])

Power source SRT01E: Williams Advanced Engineering[9] 28 kWh Lithium-ion battery

SRT05e: McLaren Applied Technologies[10] 54 kWh Battery

Transmission
Type Rear-wheel drive
Gearbox Season 1: Hewland sequential gearbox

Season 2 Onwards: Various

Controls Semi-automatic wheel paddles
Drivetrain
Suspension Double steel triangle
Shocks Torsion bars and springs
Brakes

 Round sections in aluminium alloy
Disks/calipers Free materials
Wheels
Tires Sculpted 18" Michelin  (rain and dry condition)
Rims Magnesium OZ Racing 
Maximum width: 260 mm (10 in) front / 305 mm (12.0 in) back

Maximum diameter: 650 mm (26 in) front / 690 mm (27 in) back

Dimensions, weight
Wheelbase 3,125 mm (123.0 in)
Track 1,300 mm (51 in)
Weight (driver included) 800 kg (1,800 lb) (batteries only : 200 kg (440 lb))

The original battery specifications included a 200 kg (440 lb) cell-weight limit, a 200 kW peak power limit, and a maximum usable energy of 28 kWh.[11] For the 2018–2019 season, the specifications for the battery are a weight of 250 kg (551 pounds) and 54 kWh energy, and peak power goes up to 250 kW. The cells (18650VTC6) are to be made by Murata Manufacturing, the integration by Lucid Motors, and track handling by McLaren.[12]

A Formula E car is 10 decibels louder than an average petrol road car, or about as loud as a domestic vacuum cleaner.[13]

See also
  • Formula E
    • 2014–15 Formula E season
    • 2015–16 Formula E season
    • 2016–17 Formula E season
    • 2017–18 Formula E season
    • 2018–19 Formula E season
    • 2019–20 Formula E season

Notes and references
  1. Overview Archived 2014-05-19 at the Wayback Machine - Official site
  2. Ferret, Olivier (15 May 2013). "Renault s'implique en Formula E". Nextgen-Auto.com (in French).
  3. (fr) Nicolas Carpentiers, Formula E : de l’électricité dans l’ère (nouvelle), F1i.com, October 21, 2015, Retrieved October 26, 2015
  4. McConnachie, Katy (2016-03-04). "Formula E to remain with single chassis and battery suppliers". The Checkered Flag. Retrieved 2019-01-01.
  5. Mitchell, Scott. "Formula E boss Agag does not want chassis competition". Autosport.com. Retrieved 2019-01-01.
  6. Mitchell, Scott. "Spark to build new Formula E car, cockpit protection device likely". Autosport.com. Retrieved 2019-01-01.
  7. Staff, e-racing365. "Formula E Confirms Attack Mode Details – e-racing365". e-racing365.com. Retrieved 2019-01-01.
  8. Smith, Sam. "Fanboost Expansion Confirmed – e-racing365". e-racing365.com. Retrieved 2019-01-01.
  9. (fr) Williams s'implique en FE - ESPNF1, June 12, 2013
  10. "Formula E Battery - McLaren Applied Technologies". www.mclaren.com. Retrieved 2019-01-01.
  11. "INVITATION TO TENDER FOR SOLE SUPPLY CONTRACT" (PDF). FIA. Retrieved 22 January 2019.
  12. Halvorson, Bengt (October 27, 2016). "Lucid Will Be the Sole Battery-Pack Supplier for Formula E Racing". Car and Driver. Retrieved November 8, 2016.


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