| Parameter | Specification |
|---|---|
| Model | 1400A Generation 2 Motor Controller |
| Rated Current | 400 Arms |
| Peak Current | 810 Arms |
| Rated Power | 150 kW |
| Peak Power | 300 kW |
| Input Voltage Range | 250V – 750V DC |
| Control Power Supply | 9V – 32V DC (Compatible with 12V/24V systems) |
| Protection Rating | IP68 (Dustproof & Waterproof) |
| Cooling Method | Water-cooled |
| Typical Applications | Electric buses, commercial trucks, off-road vehicles, industrial machinery, hybrid systems |
| Manufacturer | Dowway Vehicle (China) |
| Customization Services | Firmware tuning • CAN protocol adaptation (J1939/Custom) • Hardware interface modification • Thermal management optimization • Regenerative braking strategy • Full OEM/ODM support |
| R&D Capabilities | In-house algorithm development • EMI/EMC testing • Thermal simulation • Certification support (CE, RoHS, ISO) |
The 1400A Second-Generation Motor Controller is a high-performance inverter engineered for mid-to-high-end electric vehicles, including passenger cars, SUVs, and light commercial vehicles. It features SiC MOSFET-based power electronics, enabling ultra-fast switching speeds and minimal conduction losses, which contribute to its >97% efficiency across the operating range. The controller delivers 150kW continuous power and 300kW peak power for short bursts, making it ideal for applications requiring rapid acceleration or steep-grade climbing under full load.
With a rated current of 400A RMS and peak current of 810A RMS, this unit can handle extreme electrical loads without thermal throttling. The input voltage range of 250–750V DC ensures compatibility with various battery systems, from medium-voltage EVs to high-voltage platforms. The water-cooling system maintains stable performance under prolonged high-load operation, with optimized flow channels that dissipate heat efficiently even during continuous hill climbs or urban stop-and-go cycles.
Designed for harsh environments: operates reliably from -40°C to +125°C, withstanding vibrations up to 5g RMS and shock loads of 50G. The IP68-rated housing provides complete protection against dust ingress and permanent immersion in water, making it suitable for use in wet, dusty, or muddy conditions typical of urban and rural roads. The control supply voltage ranges from 9V to 32V, with compatibility for both 12V and 24V auxiliary systems, ensuring seamless integration into existing vehicle architectures.
The controller supports advanced control algorithms such as field-oriented control (FOC) and vector control, enabling precise torque regulation, smooth low-speed operation, and reduced cogging effects. It also includes built-in diagnostic functions, real-time monitoring of temperature, current, and voltage, and fault protection mechanisms to prevent damage from overcurrent, overvoltage, or overheating. All units undergo 1,000-hour accelerated life testing, thermal cycling validation, and full-load endurance tests under real-world conditions.
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