
FRAME CONSTRUCTION Tubular steel space frame
MATERIAL 1020 steel round tubing 18 to 25mm dia
OVERALL L / W / H (mm) 2860 / 1380 / 1010
WHEELBASE (mm) / TRACK (Fr / Rr) (mm) 1550 / 1160 / 1140
WEIGHT WITH 68kg DRIVER (Fr / Rr) 125 / 153
SUSPENSION Double unequal length A-Arm. Push rod actuated
horizontally oriented Penske 7800 dampers
TYRES (Fr / Rr) Hoosier 205x55 R13 R25B
WHEELS (Fr / Rr) Hoosier 205x55 R13 R25B
NUMBER OF MOTORS / LOCATION / MAX MOTOR POWER
2 / Center rear / 52kW per motor
MOTOR TYPE Siemens 1FE1082-6WP with self designed
shafts
MAX MOTOR RPM 8000
MOTOR CONTROLLER Infineon hybrid kit 2
MAX SYSTEM VOLTAGE 420V
ELECTRODE MATERIALS / COMBINED ACCUMULATOR CAPACITY
LiPo / 5,33
TRANSMISSION RATIO (PRIMARY / SECONDARY) 5,76 / -
DRIVE TYPE Two stage spure gear box
DIFFERENTIAL Torque vectoring
COOLING Left side pod with electicly controlled water pump
BRAKE SYSTEM 4-disc system, ISR 4-pot front, 2-pot rear
brake calipers, adjustable brake balance
ELECTRONICS Multifunctional Steering Wheel, self designed
torque vectoring
STOCKHOLM
KTH Royal Institute of Technology
Car E71
Pit E3
FRAME CONSTRUCTION optimized tubular steel frame
MATERIAL 25CrMo4
OVERALL L / W / H (mm) 2925 / 1460 / 1130
WHEELBASE (mm) / TRACK (Fr / Rr) (mm) 1600 / 1250 / 1200
WEIGHT WITH 68kg DRIVER (Fr / Rr) 146 / 159
SUSPENSION Double unequal length A-Arm. Push rod actua-
ted spring / damper. Adj. Roll bar
TYRES (Fr / Rr) 20x7.0-13 R25B Hoosier
WHEELS (Fr / Rr) 7x13 inch wide, 1 pc Al Rim, 22mm neg.
offset
NUMBER OF MOTORS / LOCATION / MAX MOTOR POWER
2 / Rear / 35 kW each
MOTOR TYPE AMK
MAX MOTOR RPM 13000
MOTOR CONTROLLER Custom built by Emerge Engineering
MAX SYSTEM VOLTAGE 420V
ELECTRODE MATERIALS / COMBINED ACCUMULATOR CAPACITY
LiPo / 7,4 kWh
TRANSMISSION RATIO (PRIMARY / SECONDARY) 1:9,55 / none
DRIVE TYPE two stage gearbox
DIFFERENTIAL fully adjustable electronic software differential
COOLING side mounted radiator without fan
BRAKE SYSTEM floater mounted 4-Disc system, balance beam
for adjustable brake balance
ELECTRONICS Self designed current distribution unit, Traction
control and Torque vectoring, Model-Driven SW
STUTTGART
Baden-Württemberg Cooperative
State University Stuttgart
Car E22
Pit E7