Shell Eco-marathon United States 2026 | Supercards

United States 2026

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330

US0174001 Supercards

Willmar Senior High School

Prototype P Battery-Electric BE

Results

Attempt 3

177.4

110.2

km/kWh

mi/kWh

Best attempt

Current Rank

18th / 23

17 186.5 km/kWh 115.9 mi/kWh +5.1%

18 177.4 km/kWh 110.2 mi/kWh

19 174.0 km/kWh 108.1 mi/kWh -1.9%

Technical Inspections

Before they get on track, Prototype 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.

10/10
Complete 10/10 inspections passed

Passed

1. Telemetry

1 / 1

Passed

2. Inspection Queue Entry

4 / 4

Passed

3. Driver's Control

26 / 26

Passed

4. Vehicle Dimensions

6 / 6

Passed

5. Brakes

8 / 8

Passed

6. Driver Safety

26 / 26

Passed

7. Mechanical Vehicle Design

20 / 20

Vehicle weight < 140 kg (39 g)

Windows material (polycarbonate/Lexan) (25 f)

Electrical automotive horn, sound level > 85 dBa @ 4 m (31 a-c)

Fully closed body (25 h, k)

Solid floor & frame (25 j)

No external appendages or sharp edges (25 c)

Body panels do not change shape in wind (25 b, d)

Chain/belt guard (all rotating equipment) (34 g)

Running wheels (Pr:3/4) (25 a) i )

Rims compatible with the dimensions of the tyre (41 a-b)

Wheel compliance (41 a, 48 c)

Tyres are in good condition (49 d)

Tyre valves are accessible (49 f)

Bulkhead rigid & fire resistant (27 b, d)

Bulkhead isolates energy/driver compartment (27 a)

Wheels isolated from driver, chassis, or body (41 c)

Nothing touching wheels (e.g. batt, wires, etc...) (41 d)

Steering is efficient and has no play (32 b)

If electric steering, demonstrate default safe state (32 d)

Intuitive steering control (32 b)

Passed

8. 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

9. Energy Verification

10 / 10

Documentation - Schematic (67 c)

Documentation - Battery/BMS (67 c)

Documentation - Motor controller (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

10. Final Check

4 / 4

United States 2026

US0174001 Supercards

Willmar Senior High School

Results

Attempt 1

Attempt 2

Attempt 3

Attempt 4

Current Rank

Technical Inspections

1. Telemetry

2. Inspection Queue Entry

3. Driver's Control

4. Vehicle Dimensions

5. Brakes

6. Driver Safety

7. Mechanical Vehicle Design

8. Electrical Vehicle Design

9. Energy Verification

10. Final Check