Formula Student Germany
International Design Competition - 18th to 24th of August 2025 in Hockenheim

Team Details

Rennstall Esslingen

University Hochschule Esslingen
DE Esslingen UAS short 65
team logo
LocationEsslingen, Germany
Homepagehttps://rennstall-esslingen.com/
Social Media LinkedIn Instagram YouTube facebook
CV Team Rennstall Esslingen
DV Team it:movES
Short Linktid.fsg.one/422
Car Weight195.50 kg
Event Details car 94 - active

Team Description

The Rennstall Esslingen is the Formula Student Electric Team of the University of Applied Sciences Esslingen. The name is based on the nickname of our university, “Stall”. The origin of the nickname reaches back to the year 1868. Back in the days the university was located in Stuttgart next to the royal stables. After the school moved to Esslingen the students took the nick with them.


Event Profile

2025

Car #94
Car 94

Info

Rennstall Esslingen from Hochschule Esslingen enters FSG 2025 with a young and motivated team. Our third electric car focuses on reliability, driveability, and performance by unlocking the full potential of last year's concept. Key highlights include refined aerodynamics and in-house developed motors. After being the best non-DV team at FSG, we’re ready to push the limits again and prove the strength of consistent development and team spirit on track.
Engineering Design Priorities:
DNA 94 Evolution In-house developed motors Live telemetry

Car Specifications

General
Frame Construction one piece CFRP monocoque, Sandwitch panels
Material UD & fabric fibres (HM;HT) / AL honeycomp / Rohacell
Overall Length (mm) 2902
Overall Width (mm) 1500
Overall Height (mm) 1181
Wheelbase (mm) 1535
Track Front (mm) 1240
Track Rear (mm) 1240
Weight Front (kg) 128
Weight Rear (kg) 134
Suspension Double unequal length A-Arm. Push rod actuated with decoupled Heave + Roll spring + Damper
Tyres 18x7.5 -10 Hoosier R20 / 18x7.5 -10, Hoosier R20
Wheels 8x10, 54.65mm offset, self designed CFRP
Drive Type Planetary Gearbox
Differential Torque Vectoring
Cooling Two loops, watercooled with MicroTube radiator, Sidepod mounted
Brake System self developed: floating disks, 4-Piston camiper
Electronics Rapid-Protoyping with model-based vehicle dynamics, Advanced sensors for active systems
Powertrain
Number of Motors 4
Motor Location Wheelhubs FL, FR, RL, RR
Max Motor Power 40kW each
Motor Type PMSM
Max Motor RPM 24.000
Motor Controller Electrophorus Inverter
Max System Voltage (V) 600
Electrode Materials LiCoO2
Accumulator Capacity 7,92 kWh
Transmission Ratio Primary 1:3,2
Transmission Ratio Secondary 1:4,8

Past Events

2026
Car #94

No media information available for this year.

Car Specifications
Car 94 – 2024
2024
Car #94
Info
The Stallardo '24 marks the second FSE car from Rennstall Esslingen. After starting a new chapter in 2023, we learned a lot during our first season and are now entering with a completely newly developed race car concept. With smaller tires, self-developed motors, micro tube radiators, a new monocoque, a completely new undertray, and a new rear wing, we made significant changes and introduced some exciting new features and highlights into the car.
Engineering Design Priorities:
DNA 94 Validation Self developed motor Active right height Torque Vectoring Micro tube radiator
Car Specifications
General
Frame Construction one piece CFRP monocoque, Sandwich panels
Material UD & fabric fi bres (HM;HT)/AL honeycomb/ Rohacell
Overall Length (mm) 2902
Overall Width (mm) 1500
Overall Height (mm) 1179
Wheelbase (mm) 1535
Track Front (mm) 1240
Track Rear (mm) 1200
Weight Front (kg) 131
Weight Rear (kg) 136
Suspension Double unequal length A-Arm. Push rod actuated with decoupled Heave + Roll spring + damper
Tyres 18x7.5 -10, Hoosier R20 / 18x7.5 -10, Hoosier R20
Wheels 8x10, 54.65mm offset, self designed CFRP
Drive Type Planetary Gearbox
Differential Torque Vectoring
Cooling Two loops, watercooled with MicroTube radiator, Sidepod mounted
Brake System self developed: floating disks, 2-Piston calipe
Electronics Rapid-Prototyping with model-based vehicle dynamics. Advanced sensors for active systems
Powertrain
Number of Motors 4
Motor Location Wheelhubs FL, FR, RL, RR
Max Motor Power 35kW each
Motor Type PMSM
Max Motor RPM 24.000
Motor Controller AMKmotion KW26-SE5-FSE-4Q
Max System Voltage (V) 600
Electrode Materials LiCoO2
Accumulator Capacity 7,03 kWh
Transmission Ratio Primary 15,39
Transmission Ratio Secondary -
Car 94 – 2023
2023
Car #94
Info
After 15 successful years competing in the combustion class of Formula Student, we have embarked on a new journey as a dedicated electric team. However, our story doesn't begin from scratch. Thanks to the years of experience in the electric vehicle (EV) class of our sister team, E.Stall, we have had the incredible opportunity to merge the manpower and knowledge of both teams and create a collaborative project, resulting in a remarkable electric vehicle ready to hit the track!
Engineering Design Priorities:
GF Impellers Active Ride Height Torque Vectoring Rear Axis Steering
Car Specifications
General
Frame Construction one piece CFRP monocoque, Sandwich panels
Material UD & fabric fi bres (HM;HT)/AL honeycomb/ Rohacell
Overall Length (mm) 3045
Overall Width (mm) 1440
Overall Height (mm) 1194
Wheelbase (mm) 1600
Track Front (mm) 1218
Track Rear (mm) 1218
Weight Front (kg) 141
Weight Rear (kg) 142
Suspension pushrod actuated SLA, KW FS heave damper, self-made roll damper and active heave spring
Tyres 20x7-13, Goodyear FSAE / 20x7-13, Goodyear FSAE
Wheels 7x13, 57mm offset self designed CFRP/ 7x13, 57mm offset self designed CFRP
Drive Type Planetary Gearbox
Differential Torque Vectoring
Cooling SLM printed custom radiators, sidepod mounted , dual open loop with compensation tank
Brake System self developed floating disks, 4 piston front caliper, 2 piston rear calipers
Electronics Rapid-Prototyping with model-based vehicle dynamics. Advanced sensors for active systems
Powertrain
Number of Motors 4
Motor Location Wheelhubs FL, FR, RL, RR
Max Motor Power 36kW
Motor Type AMKmotion DT5,PMSM, water cooled
Max Motor RPM 20000 RPM
Motor Controller AMK KW26-S5-FSE-4Q
Max System Voltage (V) 600V
Electrode Materials LiCoO2
Accumulator Capacity 7.03 kWh
Transmission Ratio Primary 17
Transmission Ratio Secondary -
Car 94 – 2022
2022
Car #94
Info
The E.Stall Esslingen was founded in 2012 and is the electric team of the UAS Esslingen, located at the Campus in Göppingen. Our new car, EVE 22, is an evolution of EVE 20. Goals for this years car were mainly reliability and ergonomics while driving and maintaining, and further reducing weight. Other technical highlights are our >20kg high stiffness monocoque, DRS system and driver adjustable Torque Vectoring. After six years of FSG absence we are excited to once again compete at Hockenheim.
Engineering Design Priorities:
Reliability Driveability Serviceability Weight Cost
Car Specifications
General
Frame Construction CFRP one-piece Monocoque
Material CFRP-Aramid honeycomb sandwich
Overall Length (mm) 2863
Overall Width (mm) 1400
Overall Height (mm) 1195
Wheelbase (mm) 1525
Track Front (mm) 1196
Track Rear (mm) 1210
Weight Front (kg) 124
Weight Rear (kg) 124
Suspension double unequal length A-Arm, Push rod actuated rocker to kw damper, sword-type ARB
Tyres 16x7.5 Hoosier R20
Wheels 8x10, self designed cast aluminum rims
Drive Type Planetary Gearbox
Differential individually driven wheels, software controlled
Cooling sidepod mounted radiators, single open loop with compensation tank
Brake System 192mm self developed floating disks, 4 piston front caliper, 2 piston rear calipe
Electronics decentralized topology with all self developed PCBs, fully self developed software
Powertrain
Number of Motors 4
Motor Location Wheelhub
Max Motor Power 36kW
Motor Type PMSM, water cooled, AMK DT5
Max Motor RPM 20000
Motor Controller AMK KW26-S5-FSE-4Q
Max System Voltage (V) 600V
Electrode Materials LiCoO2
Accumulator Capacity 7,6
Transmission Ratio Primary 12.3
Transmission Ratio Secondary -
Car 94 – 2015
2015
Car #94
Info
The E.Stall Esslingen was founded in 2012 and is the electric team of the UAS Esslingen aside of the cumbustion team Rennstall Esslingen. Our new car EVE '15 supports a one piece carbon fiber monocoque, self developed ECU and a spring and damper system completely new to formula student.
Engineering Design Priorities:
iaskiftheyknow ei-cu rear shelf shiiiiieet handamarm müllmoped
Car Specifications
General
Frame Construction CFRP one piece monocoque, integrated fronthoop, tubular steel mainhoop
Material prepreg carbon fiber / nomex honeycomb
Overall Length (mm) 2995
Overall Width (mm) 1422
Overall Height (mm) 1195
Wheelbase (mm) 1600
Track Front (mm) 1200
Track Rear (mm) 1150
Weight Front (kg) 118
Weight Rear (kg) 139
Suspension SLA with pushrod actuated Penske 7800 3-damper-system
Tyres Hoosier R25B 18x7,5-10 / Hoosier R25B 18x7,5-10
Wheels Keizer 10
Drive Type Epicyclic gearing
Differential -
Cooling 2x Student designed radiator
Brake System floating stainless steel disc, Front: 4 piston ISR caliper, Rear: 2 piston ISR caliper
Electronics self developed ECU and 12 other self developed control units
Powertrain
Number of Motors 2
Motor Location rear
Max Motor Power 75kW, 75 kW
Motor Type Enstroj EMRAX 207 LC
Max Motor RPM 5500
Motor Controller Unitek Bamocar D3
Max System Voltage (V) 470
Electrode Materials LiCoO2
Accumulator Capacity 7,7kWh
Transmission Ratio Primary 1:3
Transmission Ratio Secondary -
2013
Car #111
Info
We are a small new team with very motivated members. The Team consists of people from nearly every faculty of our university and we having a mix of engineers, industrial engineers, business- and social scientists. First of all we want to have reliable car for the events. In fact that is the most important point. We want to finish every endurance this year! The main concept this year is the torque vectoring. Therefore we use two independendly working motors in the rear. The vectoring allows us to combine different behaviors of the car. Like agility and stability. Unlike some other teams we designed our own BMS for the HV and the LV Battery. One reason is to having a chance to adjust some parameters and in case of errors we'll be able to change our hardware.Also new this year is our self designed telemetrie system. It allows us to have a look at the parameters of our battaries (safety issues) and some important performance indicators like brake pressure, or steering angle. See You!
Car Specifications
General
Frame Construction Tubular space frame
Material 4130N
Overall Length (mm) 2574
Overall Width (mm) 1440
Overall Height (mm) 1001
Wheelbase (mm) 1580
Track Front (mm) 1240
Track Rear (mm) 1190
Weight Front (kg) 157
Weight Rear (kg) 191
Suspension Double uneqal lenght, longitudinal oriented spring and damper
Tyres Hoosier 20,5x6 R13
Wheels Hoosier 20,5x6 R13
Drive Type Planetary Gearbox
Differential Torque Vectoring
Cooling Rear Mounted Radiator with a 225mm electrical Fan
Brake System 4 Disk System, self designed Rotors, adjustable brake balance
Electronics Self Designed BMS for LV and HV. Self designed Live Telemetrie System
Powertrain
Number of Motors 2
Motor Location Rear Right, Rear Left
Max Motor Power 100kW
Motor Type Enstroj EMRAX HV
Max Motor RPM 4500
Motor Controller Unitek Bamocar
Max System Voltage (V) 600V
Accumulator Capacity LiFePO
Transmission Ratio Primary n/a
Transmission Ratio Secondary 1:3

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
2025.08
84
13.
42.
1.
14.
5.
-
2.
-
5.
11.
21.
-20.00
605.51
2025.08
37
4.
27.
1.
3.
5.
-
2.
-
2.
-
-
0.00
494.50
2025.07
40
4.
32.
25.
2.
14.
-
5.
-
3.
2.
5.
0.00
831.20
2025.07
15
2.
11.
6.
4.
4.
-
3.
-
1.
2.
2.
0.00
848.14
2024.08
29
8.
20.
12.
4.
-
-
6.
-
6.
-
-
0.00
384.20
2024.08
79
5.
23.
31.
16.
8.
-
8.
-
9.
2.
9.
0.00
671.80
2024.08
32
9.
12.
17.
4.
7.
-
6.
-
7.
-
-
0.00
411.52
2024.07
31
3.
27.
19.
8.
-
-
-
-
-
1.
2.
0.00
624.56
2023.08
29
1.
15.
18.
6.
3.
-
4.
-
1.
4.
7.
-5.00
845.80
2023.08
70
5.
18.
5.
13.
11.
-
11.
-
5.
4.
5.
-10.00
561.76
2023.08
31
2.
7.
5.
14.
7.
-
8.
-
2.
5.
3.
0.00
745.18
2023.07
34
17.
21.
21.
12.
14.
-
11.
-
9.
-
-
0.00
369.20
2022.08
25
24.
22.
22.
10.
7.
-
8.
-
11.
-
-
-255.00
82.20
2022.08
63
55.
63.
51.
40.
-
-
-
-
29.
-
-
0.00
155.21
2021.08
26
24.
22.
25.
22.
16.
-
20.
-
15.
-
-
0.00
226.30
2021.08
14
7.
7.
5.
4.
-
-
-
-
-
-
-
0.00
255.00
2019.08
39
28.
32.
31.
27.
22.
-
23.
-
20.
-
-
0.00
204.30
2019.08
15
10.
14.
12.
8.
9.
-
8.
-
9.
-
-
0.00
275.38
2019.07
25
11.
18.
8.
3.
-
-
-
-
-
7.
-
0.00
259.78
2016.08
10
4.
10.
7.
5.
5.
-
-
-
7.
1.
6.
0.00
637.74
2016.07
28
7.
5.
10.
4.
7.
-
14.
-
4.
4.
3.
-160.00
629.20
2016.07
20
5.
16.
10.
7.
-
-
-
-
5.
2.
6.
0.00
723.96
2016.07
106
28.
61.
76.
36.
-
-
-
-
45.
15.
7.
-30.00
440.60
2015.08
30
15.
25.
19.
6.
15.
-
12.
-
14.
-
-
0.00
264.75
2015.08
37
15.
12.
29.
18.
14.
-
-
-
27.
12.
7.
-5.00
585.18
2015.08
39
34.
39.
30.
31.
-
-
14.
-
-
-
-
-40.00
119.59
2014.08
23
7.
12.
5.
3.
-
-
5.
-
-
6.
9.
0.00
591.32
2014.08
38
11.
18.
24.
10.
8.
-
30.
-
12.
16.
4.
0.00
658.84
2013.09
24
9.
13.
-
16.
8.
-
5.
-
8.
7.
12.
0.00
526.10
2013.09
16
13.
15.
-
8.
14.
-
7.
-
6.
-
-
0.00
300.20
2013.08
40
26.
39.
-
38.
16.
-
14.
-
21.
-
15.
0.00
212.90
2012.09
17
15.
17.
-
7.
12.
-
13.
-
12.
9.
9.
0.00
112.08
x 32