| Parameter | Specification |
|---|---|
| Model | WMD1-33Z30L-2U |
| Operating Voltage | 270 V ~ 450 V DC |
| Continuous Power | 2 × 20 kW |
| Peak Power | 2 × 30 kW (1 min) |
| Temperature Range | -43°C ~ +65°C |
| Altitude Limit | ≤ 5000 m |
| Dimensions | 323 mm × 255 mm × 117 mm |
| Weight | ≤ 10 kg (Approx. 9.5 kg) |
| Continuous Current | 160 A (RMS) max |
| Peak Current | 200 A (RMS) 1 min; 235 A (RMS) 10 s |
| Output Frequency | DC to 800 Hz |
| Bus Capacitance | Total 1000 μF |
| Efficiency | ≥ 97% |
| Cooling Method | Water-cooled (10–15 L/min, 50% water + 50% ethylene glycol) |
| Inlet/Outlet Size | Inner diameter: 14 mm, Outer diameter: 21 mm |
| Control Modes | Speed mode / Torque mode |
| Speed Control Range | 1:1000 |
| Speed Control Accuracy | ≤ ±2.5% |
| Torque Control Accuracy | ≤ ±5% |
| Torque Response Time | ≤ 10 ms |
| Control Supply Voltage | 9 V ~ 36 V (with reverse polarity protection) |
| Protection Features | Overload, overcurrent, overvoltage, undervoltage, overheating, overspeed, stall, communication failure |
| Motor Temperature Sensor | Pt100 |
| Resolver Ratio | 0.285 |
| Communication Interfaces | Dual CAN 2.0b, RS485/422 |
| Protection Rating | IP67 |
| Insulation Resistance | Cold state ≥ 20 MΩ; Hot state ≥ 1 MΩ |
| Life Span | Rated load operation time ≥ 1000 hours |
| Manufacturer | Dowway Vehicle (China) |
| Customization Available | Yes – voltage range, power output, mounting interface, control integration |
The WMD1-33Z30L-2U is a high-performance dual-channel motor controller engineered for medium-to-heavy-duty electric vehicles such as electric trucks, construction machinery, and specialized work vehicles. It features two independent inverter channels, each capable of delivering 20kW continuous power and 30kW peak power for 1 minute, enabling precise control of dual motors or dual-wheel drives. The controller uses SiC MOSFETs for fast switching and low conduction losses, achieving an impressive >97% peak efficiency across the operating range.
Designed for extreme environments, it supports a wide input voltage range of 270–450V DC, making it compatible with various battery systems. The water-cooled heat sink ensures stable performance under prolonged high-load operation, with recommended coolant flow of 10–15L/min using a 50% water + 50% ethylene glycol mixture. The inlet temperature must not exceed 60°C, and the cooling system includes 14mm inner diameter / 21mm outer diameter water ports for easy integration into existing thermal management systems.
The controller supports both speed control mode and torque control mode, with a speed regulation ratio of 1:1000, allowing fine-tuned motor response from idle to full speed. It features built-in 1000μF bus capacitors to stabilize voltage during transient loads, and can deliver 160A RMS continuous current and 200A RMS for 1 minute (up to 235A RMS for 10 seconds). The output frequency ranges from DC to 800Hz, enabling smooth moto
operation at low speeds without cogging.
Engineered for harsh conditions: operates reliably from -43°C to +65°C, withstanding high humidity and altitudes up to +5000m. The IP67-rated housing protects against dust ingress and temporary immersion in water, while the robust mechanical structure resists vibrations up to 5g RMS and shock loads of 50G. Manufactured under IATF 16949 with ISO 26262 ASIL-B functional safety compliance. All units undergo 1,000-hour accelerated life testing, thermal cycling validation, and full-load endurance tests. Supports white-label customization with rapid NPI cycles (14 days) and regional compliance packages (EU Type Approval, China CCC, U.S. DOT.
Reviews
There are no reviews yet.