Shell Eco-marathon Americas 2024 | Cornell Electric Vehicles

Americas 2024

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713

US0019002 Cornell Electric Vehicles

Cornell University

Urban Concept UC Battery Electric Battery Electric

Technical Inspections

Before they get on track, Urban Concept vehicles need to pass a series of 12 technical inspections. For some, the only goal is getting through this test. Many never even make it that far.

12/12
Complete 12/12 inspections passed

Passed

1. Inspection Queue Entry

4 / 4

Passed (one driver)

2. Driver's Control

16 / 23

Appropriate motorsports helmet (s) - Primary Driver (21 a)

Helmet label readable - Primary Driver (21 a)

Helmet has no cracks/indentations - Primary Driver (21 a)

Visor is clear and has no cracks - Primary Driver (21 b)

Racing suit (s) / Gloves - Primary Driver (21 a, c)

Single piece fire retardant racing suit - Primary Driver (22 a)

Shoes; socks & balacava/FRC - Primary Driver (22 b, d)

Driver weight (> 70kg) - Primary Driver (20 a)

Appropriate motorsports helmet (s) - Reserve Driver (21 a)

Helmet label readable - Reserve Driver (21 a)

Helmet has no cracks/indentations - Reserve Driver (21 a)

Visor is clear and has no cracks - Reserve Driver (21 b)

Racing suit (s) / Gloves - Reserve Driver (22 a, c)

Single piece fire retardant racing suit - Reserve Driver (22 a)

Shoes; socks & balacava/FRC - Reserve Driver (22 b, d)

Driver weight (> 70kg) - Reserve Driver (20 a)

Ballast required?

Ballast based on lightest driver (20 c)

Ballast of suitable type, proper location, sealed (20 b)

SHELL logo front / both sides (4 a-g)

Race number front / both sides (4 a-g)

Partner sticker both sides (4 a-g)

Other stickers < 400 cm² (4 a-g)

Passed

3. Vehicle Weight

2 / 2

Passed

4. Brakes

10 / 10

Brake rotors point in direction of wheel rotation (43 a)

Ergonomy (both hands on steering mech.) (43 a)

Effectiveness Ramp Test (43 b)

4 disc hydraulic brake (51 a)

X design or front / rear (51 b)

Brake pedal 2,500 mm² (51 a)

Parking brake (50 N) (51 e)

Disc thickness > 3 mm (51 a)

One dual master cylinder or 2 master cyls (51 c)

Comm brake sys (manuf's docs). Not bicycle (51 a)

Passed

5. Vehicle Dimensions

11 / 11

Height 1000 - 1300 mm (45 a)

Width 1200 - 1300 mm (45 b)

Length 2200 - 3500 mm (45 c)

Track width > 1000 mm (front) (45 d)

Track width > 800 mm (rear) (45 d)

Wheelbase > 1200 mm (45 e)

Ground clearance > 100mm (45 g)

Drivers comparment > 880 mm (45 f)

Width at drivers shoulder > 700 mm - Primary Driver (45 f)

Width at drivers shoulder > 700 mm - Reserve Driver (45 f)

Two Doors - Min 500 x 800 mm (46 d)

Passed

6. Seat Belts, Roll bar & Exit

15 / 15

Safety Belts = 5 mounting points (29 a-b)

Safety Belts - chassis fixing (29 d)

Crotch strap under body (29 b)

Top strap at 10° angle (29 b)

Length adjustor high enough for adjustement (29 b)

Safety belt has a tight fit (no slack) (29 c)

Safety belt strenght verified (29 d)

Quality of body driver collision protection (26 a)

Roll bar resist 70 kg all directions (26 d)

Roll bar 50 mm > driver's head - Primary Driver (26 b)

Roll bar width > shoulders - Primary Driver (26 c)

Roll bar 50 mm > driver's head - Reserve Driver (26 b)

Roll bar width > shoulders - Reserve Driver (26 c)

Driver exit < 10 seconds - Primary Driver (30 a-d)

Driver exit < 10 seconds - Reserve Driver (30 a-d)

Passed

7. Visibility

9 / 9

Front vis 180° & Tint - driver must be seen - Primary Driver (28 a)

Rear visibility + Mirrors > 25 cm² - Primary Driver (28 b)

Front vis 180° & Tint - driver must be seen - Reserve Driver (28 a)

Rear visibility + Mirrors > 25 cm² - Reserve Driver (28 b)

Windscreen & wiper (52, 28 a)

Window tint - driver must be seen

Electrical automotive horn (31 a)

Horn sound level > 85 dBa @ 4 m (31 b-c)

Horn uses accessory/ propulsion battery (31 d)

Passed

8. Mechanical Vehicle Design

28 / 28

Passed

9. Electrical Vehicle Design

20 / 20

Correct vehicle electrical schematic (58 c)

Charger built for battery (57 d iii)

Charging Protection (fire blanket, Lipo bag) (24 h)

Capacity < 1000 Wh (57 d iv)

Max 48 V nominal (60 V Peak) (57 a)

Only one Battery, 2 terminals, single physical package (57 b, i)

Solid metal containment tray OR Lipo bag (57 d vi)

Batt mount firm, behind b/head, not under seat (57 c)

Main fuse < 300 mm from +ve terminal ADD fuse size (57 e)

Elec system has proper fuse protection (57 e)

Electrical enclosures - transparent (57 j)

Electrical wiring connections visible/no splices (57 k)

JM Installation in engine compartment (56 c)

JM visible and accessible from outside (56 b)

JM Correct circuit location (56 c)

JM Counting Correctly (56 c)

Internal Estop Switch (37 f) i)

External Estop mounting location (37 f (ii))

Latching External Estop push button (no push/pull levers) (37 g)

Blue triangle sticker (37 f (iii))

Passed

10. Energy Verification

12 / 12

Doc'n (schematic) (58 c)

Doc'n (Batt/BMS) (58 c)

Doc'n (motor controller) (58 c)

Doc'n (motor size) (58 c)

Self-built batt - cell level current protection (57 d ii)

In-vehicle Battery Management System (57 d i)

Purpose built motor controller (67 a)

JM Position in circuit (56 d)

Estop Function - Physical Isolation of Batt (37 d)

Dead man's switch (37 h)

Efficiency of emergency shutdown (37 a-c)

Batt + and - isolated from frame and body (57 f)

Passed

11. Telemetry

8 / 8

Passed

12. Final Check

4 / 4

Previous participation
Event	Vehicle category	Energy class	Rank	Result
United States 2026	Urban Concept UC	Battery Electric Battery Electric	6	59.51km/kWh 36.98mi/kWh
Americas 2025	Urban Concept UC	Battery Electric Battery Electric	5	32.26km/kWh 20.05mi/kWh
Americas 2023	Urban Concept UC	Battery Electric Battery Electric	-	Passed technical inspection
United States 2022	Prototype P	Battery Electric Battery Electric	-	Passed technical inspection

Americas 2024

US0019002 Cornell Electric Vehicles

Cornell University

Technical Inspections

1. Inspection Queue Entry

2. Driver's Control

3. Vehicle Weight

4. Brakes

5. Vehicle Dimensions

6. Seat Belts, Roll bar & Exit

7. Visibility

8. Mechanical Vehicle Design

9. Electrical Vehicle Design

10. Energy Verification

11. Telemetry

12. Final Check

Previous participation