Shell Eco-marathon Brazil 2026 | GCEE CÁTODO | Universidade Estadual do Oeste do Paraná Foz do Iguaçu

Brazil 2026

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601

BR0021001 GCEE CÁTODO

Universidade Estadual do Oeste do Paraná Foz do Iguaçu

Urban Concept UC Hydrogen Fuel Cell H2

Technical Inspections

Before they get on track, Urban Concept vehicles need to pass a series of 10 technical inspections. For some, the only goal is getting through this test. Many never even make it that far.

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1. Inspection Queue Entrance

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2. Driver Checks

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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)

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3. Brakes

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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)

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4. Driver Safety

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The safety harness is designed for motorsport activities. (29 g)

Mounting points are clearly accessible for inspection (29 e)

Safety Belts = 5 mounting points (29 a)

Must have minimum 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)

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5. Vehicle Dimensions

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6. Mechanical Vehicle Design

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7. Electrical Design

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Correct vehicle electrical schematic (67 c)

Max 60 V Peak (57 a)

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

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

Accessory circuit isolated from propulsion (65 k, m)

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)

Internal Estop Switch (37 g) i)

External Estop mounting location (37 g) ii)

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

Blue triangle sticker (37 g) iii)

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8. Energy Verification

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Documentation (schematic, H2 flow, fuel cell, regulator) (65 a) i, 67 c)

No external starter battery (65 k) i)

Hydrogen cylinder firmly installed (65 b) iv)

Regulator installed correctly (65 a) iv 1)

Pipe H2 suitable, S.Steel (1.0 bar), PTFE (<1.0 bar) (65 e)

Connectors H2 OK (comp type, no Teflon) (65 e) iv)

Normally closed solenoid valve (37 f) i)

Pressure relief valve installed and set correctly (65 a) iv 4)

Pressure relief valve vents outside vehicle (65 a) iv 4)

Purge pipe vents outside or not used (65 f)

Correct system design (65 a) iv)

2 ventilation holes 5 cm² (65 c)

Hydrogen sensor at highest point (65 d)

Leak Check OK (65 d)

Flowmeter installed and functioning (65 a) v, g) iii)

Emergency shutdown function (H2 Valve & Propulsion) (37 f) ii)

Efficiency of Estop (3 methods, valve/MC) (37 f) ii)

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9. Telemetry

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10. Final Checks

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Previous participation
Event	Vehicle category	Energy class	Rank	Result
United States 2026	Urban Concept UC	Hydrogen Fuel Cell H2	3	67.38km/m3 41.87mi/m3
Brazil 2025	Urban Concept UC	Hydrogen Fuel Cell H2	1	60.93km/m3 37.86mi/m3
Americas 2025	Urban Concept UC	Hydrogen Fuel Cell H2	-	Passed technical inspection
Brazil 2024	Prototype P	Battery Electric Battery Electric	-	Did not pass technical inspection

Brazil 2026

BR0021001 GCEE CÁTODO

Universidade Estadual do Oeste do Paraná Foz do Iguaçu

Technical Inspections

1. Inspection Queue Entrance

2. Driver Checks

3. Brakes

4. Driver Safety

5. Vehicle Dimensions

6. Mechanical Vehicle Design

7. Electrical Design

8. Energy Verification

9. Telemetry

10. Final Checks

Previous participation