Team Details
Green Voltage Racing
| University | Technische Universität Clausthal
DE Clausthal TU short 687 |
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|---|---|---|
| Location | Clausthal, Germany | |
| Homepage | https://gvr-clausthal.de/ | |
| Social Media |
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| Short Link | tid.fsg.one/347 | |
Event Profile
Past Events
2018
Info
We are Green Voltage Racing from Clausthal UT and proud to present this year’s vehicle - the GVRacer 7! In comparison to our previous vehicle we dramatically cut down our weight by intensifying work with finite element software, enhancing the cars electronic reliability and error handling system and designing a new 5-link suspension system. We were able to reduce the moment of inertia of the sprocket by 80 % and still increase its output torque to over 940 Nm in contrast to its predecessor.
Engineering Design Priorities:
safety
lightweight construction
durability
killingswotanalysis
buildracecarordietrying
racecarfromminingschool
Car Specifications
General
| Frame Construction | Steel tube frame |
|---|---|
| Material | Construction steel S355 |
| Overall Length (mm) | 2983 |
| Overall Width (mm) | 1410 |
| Overall Height (mm) | 1258 |
| Wheelbase (mm) | 1526 |
| Track Front (mm) | 1211 |
| Track Rear (mm) | 1171 |
| Weight Front (kg) | 134 |
| Weight Rear (kg) | 146 |
| Suspension | 5-Link with pushrods and horizontal springs in pushrod configuration. All rods adjustable |
| Tyres | 205/470 R13, Continental / 205/470 R13, Continental |
| Wheels | 7Jx13, OZ Formula Student Magnesium 4H / 7Jx13, OZ Formula Student Magnesium 4H |
| Drive Type | single stage chain gear w/ simplex chain |
| Differential | Drexler limited slip differential |
| Cooling | single-curcuit with 2 radiators for inverter and motor driven by gear pump |
| Brake System | 4-Disk system, self-developed rotors with 210mm diameter, adjustable brake balance |
| Electronics | self-developed ECUs and AMS, CAN-Bus, advanced dashboard |
Powertrain
| Number of Motors | 1 |
|---|---|
| Motor Location | Rear |
| Max Motor Power | 100kW |
| Motor Type | Enstroj EMRAX 228 HV LC |
| Max Motor RPM | 6500 |
| Motor Controller | Unitek Bamocar D3 |
| Max System Voltage (V) | 600V |
| Electrode Materials | LiCoO2 |
| Accumulator Capacity | 6.4kWh |
| Transmission Ratio Primary | 3.9 |
| Transmission Ratio Secondary | n/a |
2014
Info
We are a young team but motivated and strongly connected to our sponsors and the Clausthal Institute Of Technology. We are aiming on a weight reduction of close to 30% compared to our last car, involving an improved design and construction. This acknowledges our ongoing progress. All our work is focused on a successful season 2014 in Hockenheim and Italy and we wish every team a thriving event. And on that bombshell, it's time to end!
Engineering Design Priorities:
30% weight reduction
fancy suspension
wicked gearbox
nais rims
such speed
Car Specifications
General
| Frame Construction | laser cut and welded steel tubes |
|---|---|
| Material | 25CrMo4 |
| Overall Length (mm) | 2740 |
| Overall Width (mm) | 1400 |
| Overall Height (mm) | 960 |
| Wheelbase (mm) | 1575 |
| Track Front (mm) | 1200 |
| Track Rear (mm) | 1160 |
| Weight Front (kg) | 143 |
| Weight Rear (kg) | 175 |
| Suspension | Dbl. uneql. length A-Arm. Pull rod actuated diagonal (Fr)/horizontal (Rr) oriented spring and damper |
| Tyres | Hoosier, 18.0 x 6.0-10, R25B |
| Wheels | Hoosier, 18.0 x 6.0-10, R25B |
| Drive Type | planetary gearbox |
| Differential | Limited slip differential |
| Cooling | rear mounted radiator, water cooled, 2 electric fans |
| Brake System | 4-Disk, Floating, steel, hub mounted, 200 mm outer diam., 100 mm inner diam, 5 (Fr)/4 (Rr) mm thick |
| Electronics | Arduino Mega 2560 R3 Microcontroller |
Powertrain
| Number of Motors | 1 |
|---|---|
| Motor Location | rear center |
| Max Motor Power | 75 |
| Motor Type | permanently excited synchronous AC motor |
| Max Motor RPM | 12200 |
| Motor Controller | SIMOTION (Siemens power inverter) |
| Max System Voltage (V) | 336V |
| Electrode Materials | LiPo |
| Accumulator Capacity | 6.1 |
| Transmission Ratio Primary | 1:4.36 |
| Transmission Ratio Secondary | 1:2 |
2011
Info
In 2011 the Technical University of Clausthal will send their first team to the international competition at the Hockenheimring. Students from different study paths build up a new team, the Green Voltage Racing e.V. It is divided into different working groups to split up works and allow our members to concentrate on their favorite occupation fields. Our main target is to produce a reliable and affordable race-car which is able to compete with cars from all over the world. With its two permanent excitated watercooled synchronous machines and anti-squat/anti-dive chassis our car permits higher performances on course. Special features like our recent patterned heat control system to monitor the heat level within the accumulator stacks complete our portfolio. We thank all our partners and supporters for great 2 years of development and wish all teams a good time at Hockenheim. Follow our latest progress on www.greenvoltageracing.de.
Car Specifications
General
| Frame Construction | tubular space frame |
|---|---|
| Material | 1.0037 steel round tubing, 25mm diameter |
| Overall Length (mm) | 3202 |
| Overall Width (mm) | 1649 |
| Overall Height (mm) | 1173 |
| Wheelbase (mm) | 1600 |
| Track Front (mm) | 1400 |
| Track Rear (mm) | 1350 |
| Weight Front (kg) | 125 |
| Weight Rear (kg) | 233 |
| Suspension | double unequal length A-Arm Push rod actuated vertically oriented spring and damper |
| Tyres | 8.5x13, 24mm offset 1 pc aluminum rim, Pirelli |
| Wheels | 8.5x13, 24mm offset 1 pc aluminum rim, Pirelli |
| Drive Type | 2 Stage Chain Drive Type |
| Differential | - |
| Cooling | Single radiator mounted behind motor compartement, 2 electric fans |
| Brake System | 4-Disk system, rotor diameter 220mm, adjustable brake balance |
| Electronics | wiring harness sealed to IP 67, fibre optical accumulator temperature surveillance, |
Powertrain
| Number of Motors | 2 |
|---|---|
| Motor Location | Rear Right, Rear Left |
| Max Motor Power | 69 kW |
| Motor Type | PERM PMS 146 |
| Max Motor RPM | 6000 |
| Motor Controller | KEB Combivert F5 Multi |
| Max System Voltage (V) | 504V |
| Electrode Materials | Li-Ion |
| Accumulator Capacity | 14,23kWh |
| Transmission Ratio Primary | 1 : 2,2 |
| Transmission Ratio Secondary | 1 : 2,2 |
FS past achievements due to World Ranking Data Base
| Date | Event | Teams | Rank | BP | CM | ED | SP | DV SP | AC | DV AC | AX | EN | EF | Pe | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019.08 | 15 |
5. |
4. |
13. |
10. |
7. |
- |
6. |
- |
7. |
5. |
2. |
0.00 |
494.73 |
|
| 2019.08 | 24 |
23. |
24. |
21. |
22. |
- |
- |
- |
- |
9. |
- |
- |
-22.00 |
121.40 |
|
| 2018.08 | 39 |
25. |
38. |
11. |
31. |
- |
- |
16. |
- |
22. |
- |
- |
0.00 |
201.72 |
|
| 2017.08 | 19 |
18. |
14. |
19. |
19. |
10. |
- |
8. |
- |
10. |
- |
- |
-50.00 |
135.20 |
|
| 2015.09 | 20 |
13. |
15. |
13. |
15. |
12. |
- |
11. |
- |
7. |
11. |
- |
0.00 |
320.71 |
|
| 2015.09 | 13 |
11. |
10. |
9. |
7. |
6. |
- |
8. |
- |
9. |
- |
- |
-20.00 |
280.28 |
|
| 2014.08 | 39 |
39. |
39. |
39. |
39. |
- |
- |
- |
- |
- |
- |
- |
0.00 |
74.81 |
|
| 2012.08 | 39 |
33. |
8. |
33. |
20. |
- |
- |
- |
- |
- |
- |
- |
0.00 |
221.28 |
|
| 2011.08 | 28 |
24. |
18. |
22. |
25. |
- |
- |
- |
- |
- |
- |
- |
0.00 |
132.68 |
|
| x 9 | |||||||||||||||
