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618
NL0022002 Green Team Twente
University of Twente
Results
Attempt 1
183.6
114.1
km/m3
mi/m3
Attempt 2
259.2
161.0
km/m3
mi/m3
Attempt 3
260.2
161.7
km/m3
mi/m3
Attempt 4
304.3
189.1
km/m3
mi/m3
BEST RESULT
1 2 3 4
Current Rank
2nd / 7
1 486.3 km/m3 302.2 mi/m3 +59.8%
2 304.3 km/m3 189.1 mi/m3
3 274.6 km/m3 170.7 mi/m3 -9.8%
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
Complete
Passed
1. Inspection Queue Entry
4 / 4
Bound/Printed documentation
(58 c)
Telemetry equipment installed
(58 c)
Charging Protection (fire blanket, Lipo bag)
(24 h)
Charger
(57 d iii)
Passed
2. Driver's Control
23 / 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 oth sides
(4 a-g)
Other stickers < 400 cm²
(4 a-g)
Passed
3. Vehicle Weight
2 / 2
Vehicle weight
Vehicle weight < 225 kg
(45 h)
Passed
4. 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
5. Seat Belts & Roll bar
13 / 13
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)
Passed
6. 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
7. Visibility
8 / 8
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 / Tint - driver must be seen
(52, 28 a)
Electrical automotive horn
(31 a)
Horn sound level > 85 dBa @ 4 m
(31 b-c)
Horn uses accessory/ propulsion battery
(31 d)
Passed
8. Exit
2 / 2
Driver exit < 10 seconds - Primary Driver
(30 a-d)
Driver exit < 10 seconds - Reserve Driver
(30 a-d)
Passed
9. Mechanical Vehicle Design
27 / 27
Fully closed body
(25 j, g)
Quality of body driver collision protection
(26 a-d)
Solid floor & frame
(25 i)
No external appendages or sharp edges
(25 c)
Body panels do not change shape in wind
(25 b, d)
Wheel covers integral with body
(46 b)
Internal/ext'l opening mech effective/intuitive
(30 c)
Method of opening marked with red arrow
(30 c)
Door solidly attached
(46 e)
Bulkhead rigid & fire resistant
(27 b-d)
Bulkhead isolates energy/driver compartment
(27 a)
Chain/belt guard
(34 g)
Running wheels (Pr:3/4, UC:4)
(25 a iii)
Wheels isolated from driver, chassis, or body
(41 c)
Rims 15 to 17 inch
(48 a)
Tire width > 80mm
(49)
Min tread 1.6 mm
(49)
Steering wheel diameter > 250 mm
(47 b)
Luggage compartment (and luggage)
(46 h)
Towing hook or ring
(46 j)
2 front turn indicators
(50 b)
2 front headlights
(50 a)
2 rear turn indicators
(50 c)
2 red rear brake light
(50 d)
2 red rear lights
(50 e)
Headlights ≥ 300 mm from center-line
(50 f)
Hazard Lights
(50 h)
Passed
10. Electrical Vehicle Design
24 / 24
Correct vehicle electrical schematic
(58 c)
Electrical wiring connections visible/no splices
(57 k)
Elec system has proper fuse protection
(57 e)
Electrical enclosures - transparent
(57 j)
Only one Battery, single physical package
(57 b)
Max 48 V nominal (60 V Peak)
(57 a)
Batt mount firm, behind b/head, not under seat
(57 c)
Main fuse < 300 mm from +ve terminal
(57 e)
Accessory battery
Acceptable electrically powered devices
(57 h, i)
Charger built for battery
(57 d iii)
Charging Protection (fire blanket, Lipo bag)
(24 h)
Solid metal containment tray OR Lipo bag
(57 d vi)
Capacity < 1000 Wh
(57 d iv)
Supercapacitor (SC) for energy storage
(65 j)
Fuse on +ve of SC, <300mm, size OK
(57 e)
Super Cap voltage > system V
(57 a)
External connectors
(63 c)
Electrical Isolation from body/frame
(57 f)
Joulemeter
Installation in engine compartment
(56 a)
Correct circuit location (after battery)
(56 d)
Fuse on +ve of FC, <300mm, size < surf area
(57 e)
Accessory circuit isolated from propulsion
(65 k, m)
Passed
11. Energy Verification
19 / 19
Doc'n (schematic, H2 flow, fuel cell)
(58 c, 65 a)
Correct system design
(65 a)
Pipe H2 suitable, S.Steel (1.5b), PTFE (<1.5b)
(65 f)
Connectors H2 OK (comp type, no teflon)
(65 f)
2 ventilation holes 5 cm²
(65 c)
Hydrogen sensor at highest point
(65 d)
Normally closed solenoid valve
(65 e)
Hydrogen cylinder firmly installed
(65 b v, vi)
Installed Press. valve must vent outsdie vehicle
(65 f, v)
Flowmeter installed and functioning
(65 a, h)
Telemetry H2 flowmeter installed
(83)
Purge pipe vents outside or not used
(65 g)
Emergency shutdown
Internal/External Estop Switch
(37 f)
Latching push button (no push/pull levers)
(37 g)
Efficiency of Estop (3 methods, valve/MC)
(37 a-c)
Dead man's switch
(37 h)
Blue triangle sticker
(37 f (iii))
Joulemeter in place for Supercap
Passed
12. Telemetry
8 / 8
OBC-Pod mounted correctly
OBC Backbone mounted correctly
Battery mounted correctly
(69 a)
Sensors mounted correctly
Cables mounted correctly
No direct electrical connection of OBC to car body or chassis
OBC working properly
Shutdown Relay working properly
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