Shell Eco-marathon United States 2026 | Duke Electric Vehicles

United States 2026

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716

US0021001 Duke Electric Vehicles

Duke University

Urban Concept UC Battery-Electric BE

Technical Inspections

Before they get on track, Urban Concept vehicles need to pass a series of 9 technical inspections. For some, the only goal is getting through this test. Many never even make it that far.

9/9
Complete 9/9 inspections passed

Passed

1. Inspection Queue Entry

4 / 4

Passed

2. Driver's Control

14 / 14

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

Helmet label readable - Primary Driver (21 c)

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

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

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

Fire retardant gloves - Primary Driver (22 c)

Flat, closed toe shoes - Primary Driver (22 b)

Cotton socks, no bare skin visible - Primary Driver (22 b, e)

FCR balaclava if used - Primary Driver (22 d)

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

Ballast required? (20 b)

Ballast based on lightest driver (20 b)

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

Number of ballast locations (20 b)

Passed

3. Vehicle Dimensions

10 / 9

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 compartment > 880 mm (45 f)

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

Passed

4. Brakes

10 / 10

Brake documentation (67 c ii)

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

Ergonomy (both hands on steering mech.) (32 c)

Effectiveness Ramp Test - Dynamic (51 e)

4 disc hydraulic brake (51 a)

X design or front / rear. One dual master cylinder or 2 master cyls (51 b)

Single brake pedal with at least 2,500 mm² (51 a)

Parking brake must keep vehicle stationary (51 d)

Disc thickness > 3 mm (51 a)

Commercial brake system, not bicycle (51 a)

Passed

5. Driver Safety

21 / 21

Safety belt must be designed for motorsports use (29 g)

Mounting points are clearly accessible for inspection (29 e)

Safety Belts ≥ 5 mounting points (29 a)

Must have 5 independent belts attached to structure - chassis fixing (29 a)

Crotch strap under body (29 b)

Safety belt must be in straight line between mounting point and shoulder (29 f)

Safety belt has a tight fit (no slack), length adjustor high enough for adjustment (29 c)

No modifications of safety belt (29 h)

Safety belt strength verified (29 d)

Quality of body driver collision protection (26 a)

Internal/ext'l opening mech effective/intuitive (30 c)

Method of opening accurately marked with sticker (30 c)

No adhesive tape to close driver compartment from outside (30 d)

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)

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

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

Rear visibility - see cheat sheet - Primary Driver (28 b)

Quality of body driver collision protection (26 a-d)

Crumple space-protect from front/side impact (25 a) ii, 26 a)

Passed

6. Mechanical Vehicle Design

33 / 33

Passed

7. Electrical Vehicle Design

22 / 22

Correct vehicle electrical schematic (67 c)

Charger built for battery (57 d) iii)

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

Capacity < 1000 Wh (57 d) iv)

Max 60 V Peak (57 a)

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

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)

Main fuse is sized correctly for the system (57 e)

Elec system has proper fuse protection (57 g)

Drivers Display (57 i)

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 g) i)

External Estop mounting location (37 g) ii)

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

Blue triangle sticker (37 g) iii)

Passed

8. Energy Verification

10 / 10

Documentation - Motor controller (67 c)

Documentation - Schematic (67 c)

Documentation - Battery/BMS (67 c)

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

In-vehicle Battery Management System (57 d) i)

Purpose built motor controller (66 a)

Estop Function - Physical Isolation of Batt (37 e)

Dead man's switch (37 i)

Efficiency of emergency shutdown (37)

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

Passed

9. Final Check

4 / 4

Previous participation
Event	Vehicle category	Energy class	Rank	Result
Americas 2025	Urban Concept UC	Battery Electric Battery Electric	-	Did not pass technical inspection
Americas 2023	Prototype P	Battery Electric Battery Electric	2	473.26km/kWh 294.07mi/kWh
United States 2022	Prototype P	Battery Electric Battery Electric	-	Passed technical inspection

United States 2026

US0021001 Duke Electric Vehicles

Duke University

Technical Inspections

1. Inspection Queue Entry

2. Driver's Control

3. Vehicle Dimensions

4. Brakes

5. Driver Safety

6. Mechanical Vehicle Design

7. Electrical Vehicle Design

8. Energy Verification

9. Final Check

Previous participation