Dynamo (dynamometer)
Toyo Denki has nearly 100 years of experience as a motor manufacturer and was the first to offer a permanent magnet synchronous motor to the world. Our Dynamic Spin Dynamo (DSD) series employs our proprietary water-cooling method along with our permanent magnet synchronous motor.
Low Inertia Motor Dynamic Spin Dynamo (DSD) Series
S-DSD Series Motor
Industry Leading Level of Low Inertia
Toyo Denki’s Dynamic Spin Dynamo (DSD) series has the lowest inertia in the industry. Our DSD is able to keep inertia moment to about 1/10th that of an induction motor with the same amount of capacity.
Toyo Denki’s Dynamic Spin Dynamo (DSD) series has the lowest inertia in the industry. Our DSD is able to keep inertia moment to about 1/10th that of an induction motor with the same amount of capacity.
External dimension comparison between 220kW induction motor and S-DSD motor
Proprietary water-cooling method enables a much more compact motor than conventional
We were able to make our motor much more compact than the conventional one using our proprietary water-cooling method.
We were able to make our motor much more compact than the conventional one using our proprietary water-cooling method.
Drive motor frame structure
Frame structure engineered to the limit
Toyo Denki has not only made the test system compact, but also engineered the frame structure to push the draft shaft and wheel base to the limit, achieving a layout that is equivalent to that of an actual vehicle.
In addition, our DSD is very quiet, making it highly suitable for use as a noise and vibration (NV) test bench.
Toyo Denki has not only made the test system compact, but also engineered the frame structure to push the draft shaft and wheel base to the limit, achieving a layout that is equivalent to that of an actual vehicle.
In addition, our DSD is very quiet, making it highly suitable for use as a noise and vibration (NV) test bench.
Products
High-Speed, Low Inertia Dynamo (S-DSD, S-DSDi, S-DSD HP, S2-DSD)
High RPM, low inertia, compact, excitation
| Output | ～505kW |
|---|---|
| Rotational speed | ～10,000min-1 |
| Torque | Up to 1,610Nm max |
| Moment of inertia (J) | 0.016～kg･㎡ |
Ultra-High-Speed, Low Inertia Dynamo (S-DSD HS)
High RPM, low inertia, compact
| Output | ～220kW |
|---|---|
| Rotational speed | ※～20,000min-1 |
| Torque | Up to 525Nm max |
| Moment of inertia (J) | 0.169～kg･㎡ |
*Please inquire with Toyo Denki regarding outputs exceeding 16,000min-1.
High Torque, Low Inertia Dynamo (H-DSD, W-DSD)
High torque, low inertia, wide range
| Output | ～ 535kW |
|---|---|
| Rotational speed | ～4,000min-1 |
| Torque | Up to 5,960Nm max |
| Moment of inertia (J) | 0.93～kg･㎡ |
