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/// High Performance Motors
Revolutionary Winding Technology
SciMo developed a revolutionary and unique winding technology solving the core problems of any modern electric motor, which are material efficiency, cooling performance and cost. Out motor technology enables electric motors with power densities of up to 17 kW/kg.
- 60% higher copper density
- 90% higher cooling performace
- 75% higher power density
- 75% higher material efficiency
/// Electric High Performance Motors
SciMo is producing electric motors with highest power to weight ratios. Our motors proved their potential in the most challenging aerospace and motorsport applications, leading to a world champion title in 2015. An overview of the different motor specifications is given in the following table.
Production motors
We cannot show all the customer specific motors here.If you have an interesting project with challenging motor requirements, please contact us!
Case studies
Motors | Type | Pole pairs | Speed (rpm) | eta (%) | Max. power (kW) | Cont. power (kW) | Cont. Torque (Nm) | Weight (kg) | Application |
|---|---|---|---|---|---|---|---|---|---|
SE2X.A | Inrunner | 2 | 70.000 | >96 | >100 | >100 | 17 | – | Generator (stackable up to 300 kW) |
ST3X.A | Inrunner | 3 | 40.000 | 95 | 150 | 100 | 43 | – | Testbench Dynometer |
ST43.B | Inrunner | 3 | 30.000 | 96 | 300 | 200 | 150 | – | Testbench Dynometer |
SY45.A | Inrunner | 4 | 18000 | 98.4 | >400 | 250 | 300 | 30 | Formula E (efficiency optimized) |
SCFX.A | Outrunner | 15 | 3000 | >90 | 16 | 12 | 38 | 4.2 | Aerospace |
SYKX.A | Inrunner | 20 | 3000 | 97 | 1700 | 1200 | 6000 | <200 | Aerospace 1.5 MW direct drive |
/// Motor technology
/// Winding Technology
SciMo radically rethought the purpose and the properties of an optimal winding for electric motors from scratch. This new approach to coil winding is based on thin rectangular flat wires that significantly increase the copper density in the motors.
The SciMo windig technique enables distributed windings with copper filling factors above 70%. As a result the power density and efficiency are significantly improved. Furthermore, the material savings in magnets and electric sheet lamination can compensate for the incresead winding manufacturing costs.
/// SciMo Winding
Distributed winding using rectangular wires:
- over 70% copper filling factor
- very good heat dissipation
- defined location of terminals
- robust and reliable design
/// Conventional Winding
Distributed winding using round wires:
- around 45% copper filling factor
- bad heat dissipation
- manual phase connection
/// Motor Design and Optimization
SciMo is using a fully automated closed loop approach to design and optimize the electromagnetic layout of our motors. This optimized and detailed simulation of the electric drive system is crucial in order to design motors with highest performance that are close to the physical limits.
The iterative approach to the fully automated simulation toolchain is indicated in the following. The iteration stops when a global maximum is found.
- Unique parameter set describes the geometry and materials.
- The geometry is generated in high detail.
- Fully parallelized electromagnetic FEA is performed.
- Generation of a full 3D thermal FEA. Results are simplified to a thermal network of components of interest.
- Output motor data can be used to directly optimized inverter and gearbox design for particular machine layout.
- The simulation results are evaluated and used as feedback for an optimization of the parameter set to start with the next iteration.
The simulation results or output modell fully characterizes the entire drive system, which can be used to apply loadcycles and calculate the expected thermal response. As well, more complex simulations can be performed, for example calculation the maximum dynamics.
The tool chain is regulary benchmarked against test bench runs with our different motors. Deviations between simulations and measurement results are used as input data to optimized the simulation model.
/// Applications
SciMo motors are used in a wide range of applications. Our technology leads to light, efficient and powerful motor designs with highest power densities. The motors are therefore used in a wide range of applications, e.g. Traction motors, e-Booster, electric turbocharger, test bench motors, spindel drives, fly wheels, pumps, compressors.
/// Test bench motors
Our motors are used in advanced test bench applications. The high motor speed in combination with a high torque distribution over the entire speed range are optimal for test bench applications.
/// Motorsport
Our motors are used to power the next generation of Hydrogen Electric Racing cars (Forze Delft), where used in several Hyperloop competitions (1st and 2nd place) and as well as in the Formula Student (World ranking no.1).
/// Aerospace
SciMo motors are very powerful, light and efficient electric motors, an optimal solution for the needs of the electric aviation market. We’re in close cooperation with several companies in the electic aviation sector.
/// Special applications
In many applications there are no suitable motors available on the market. Due to its outstanding performance SciMo can supply motors far beyond what is possible with standard technologies.
/// Motor specifications
/// SY11
Motor parameters of the SY11 high speed motor.
Design parameter | Value |
|---|---|
Pole pairs | 1 |
Airgap diameter (mm) | 20 |
Active length (mm) | 50 |
Winding | distributed |
Magnet config. | buried |
Cooling | Water jacket |
Status | Prototype |
Property | Value |
|---|---|
Maximum speed (rpm) | 125.000 |
Maximum efficiency (%) | >94 |
Maximum power (kW) | 25 |
Continuous power (kW) | 5 |
Continuous torque (Nm) | 0.4 |
Weight (kg) | 2.0 |
/// SY21
Motor parameters of the SY21 motor with highest power density.
Design parameter | Value |
|---|---|
Pole pairs | 2 |
Airgap diameter (mm) | 40 |
Active length (mm) | 80 |
Winding | distributed |
Magnet config. | buried |
Cooling | Oil cooling |
Status | Running in application |
Property | Value |
|---|---|
Maximum speed (rpm) | 30.000 |
Maximum efficiency (%) | 96 |
Maximum power (kW) | 50 |
Continuous power (kW) | 32 |
Continuous torque (Nm) | 18 |
Weight (kg) | 4.0 |
/// SY31
Motor parameters of the SY31 motor with high power density.
Design parameter | Value |
|---|---|
Pole pairs | 3 |
Airgap diameter (mm) | 60 |
Active length (mm) | 66 |
Winding | distributed |
Magnet config. | buried |
Cooling | Water jacket |
Status | Running in application |
Property | Value |
|---|---|
Maximum speed (rpm) | 20.000 |
Maximum efficiency (%) | 95 |
Maximum power (kW) | 70 |
Continuous power (kW) | 30 |
Continuous torque (Nm) | 25 |
Weight (kg) | 5.3 |
/// SY43
Motor parameters of the SY43 motor with highest performance.
Design parameter | Value |
|---|---|
Pole pairs | 4 |
Airgap diameter (mm) | 80 |
Active length (mm) | 100 |
Winding | distributed |
Magnet config. | buried |
Cooling | Water jacket |
Status | In Production |
Property | Value |
|---|---|
Maximum speed (rpm) | 30.000 |
Maximum efficiency (%) | 97 |
Maximum power (kW) | 180 |
Continuous power (kW) | 100 |
Continuous torque (Nm) | 80 |
Weight (kg) | 13.0 |
/// ST3X.A Testbench dynometer
Due to its high power density SciMo motors are ideally suited for high speed, high power dynometers with very high dynamics. There are not many motor suppliers that can generate such high continuous output powers from such small rotor dimensions. And small rotor dimensions help to deal with critical bending frequencies.
Design parameter | Value |
|---|---|
Pole pairs | 3 |
Airgap diameter (mm) | 60 |
Active length (mm) | 100 |
Winding | distributed |
Magnet config. | buried |
Cooling | Water jacket |
Status | Running in application |
Property | Value |
|---|---|
Maximum speed (rpm) | 40.000 |
Maximum efficiency (%) | 95 |
Maximum power (kW) | 150 |
Continuous power (kW) | 100 |
Continuous torque (Nm) | 43 |
Weight (kg) | – |
/// ST43.B
Motor parameters of the SY43 motor with highest performance.
Design parameter | Value |
|---|---|
Pole pairs | 4 |
Airgap diameter (mm) | 80 |
Active length (mm) | 200 |
Winding | distributed |
Magnet config. | buried |
Cooling | Water jacket |
Status | Design phase |
Property | Value |
|---|---|
Maximum speed (rpm) | 30.000 |
Maximum efficiency (%) | 97 |
Maximum power (kW) | 350 |
Continuous power (kW) | 200 |
Continuous torque (Nm) | 150 |
Weight (kg) | – |
The ST43.B is the testbench dynometer version of the existing and well tested SY43.B, but with two time the active length. (Picture shows SY43.B)