New Energy Power parts Drive motor and AMT gearbox assembly 2100010-KT7B0

As the "power heart" of the NEV’s powertrain, the 2100010-KT7B0 assembly delivers end-to-end, high-efficiency power transmission through tight integration of the drive motor and AMT gearbox. The permanent magnet synchronous drive motor (PMSM) converts electrical energy from the battery into mechanical power, generating high torque (up to 800N·m) at low speeds—critical for NEV startup and heavy-load climbing. The AMT gearbox (typically 5-speed or 6-speed) then optimizes torque distribution via automated gear shifting: it adjusts gear ratios in real time based on vehicle speed, load, and driver input (accelerator/brake signals) received from the VCU. This integration enables two key advantages: 1) Extended Driving Range: The AMT’s optimal gear ratios reduce motor energy consumption by 12-18% compared to fixed-ratio transmissions; 2) Enhanced Dynamic Performance: The motor’s high low-speed torque combined with AMT’s gear shifting ensures smooth acceleration (0-60km/h in ≤10s for commercial NEVs) and stable high-speed operation (up to 120km/h). Additionally, the assembly supports regenerative braking—capturing kinetic energy during deceleration and converting it back to electrical energy to recharge the battery

The 2100010-KT7B0 integrated assembly features a heavy-duty, NEV-optimized structure built to withstand the harsh conditions of high-torque power transmission and long-term NEV operation. The shared housing of the motor and gearbox is constructed from high-strength cast aluminum alloy (ADC12) with a reinforced rib design, providing mechanical rigidity to resist torsional stress (up to 5000N·m) during high-torque output. The drive motor’s stator and rotor use high-grade materials: the stator is insulated with 200°C-class enameled wire to withstand heat from long-term operation, while the rotor’s permanent magnets (neodymium-iron-boron) are coated with a corrosion-resistant layer to prevent demagnetization. The AMT gearbox’s internal components—gears, synchronizers, and bearings—use hardened alloy steel (20CrMnTi) with precision grinding (surface roughness Ra ≤0.4μm) to minimize wear and ensure smooth shifting (≤300ms shift time). The assembly also includes a sealed lubrication system (for the gearbox) and a liquid cooling circuit (for the motor) to maintain stable operating temperatures (-40°C to 120°C) and extend component lifespan

The 2100010-KT7B0 is calibrated with NEV-specific technical parameters to maximize power efficiency and performance. The drive motor has a rated power of 120kW-180kW (peak power up to 250kW) and a maximum speed of 12,000rpm—sufficient to meet the power needs of heavy-duty NEVs. The AMT gearbox offers a gear ratio range of 3.5-0.8 (for 6-speed variants), enabling optimal torque distribution across all driving speeds: low gears (3.5-1.8) provide high torque for startup and climbing, while high gears (1.2-0.8) reduce motor speed for energy-efficient high-speed driving. The assembly’s electrical system supports NEV high-voltage platforms (300V-800V) with a maximum current of 600A, ensuring stable power input from the battery. For communication, it uses a high-speed CAN FD bus (8Mbps) to exchange real-time data (motor speed, gear position, torque output) with the VCU, enabling fast adjustment of power delivery. Additionally, the assembly’s regenerative braking system can recover up to 25% of kinetic energy during deceleration, directly extending NEV driving range by 10-15%

Both the drive motor and AMT gearbox of the 2100010-KT7B0 assembly meet strict global NEV quality and safety standards. The assembly is manufactured in accordance with ISO/TS 16949 (automotive quality management system) and complies with NEV-specific standards: IEC 60034 (for electric motors), GB/T 18385 (EV powertrain efficiency), and ISO 8686 (for AMT performance). Each unit undergoes 100% factory testing, including: 1) Power performance testing (motor torque/speed curve, gearbox shifting accuracy); 2) Durability testing (10,000-hour continuous operation simulation, equivalent to 300,000km NEV driving); 3) Environmental testing (temperature cycling, vibration per ISO 16750-3, humidity resistance); 4) Safety testing (high-voltage insulation resistance, short-circuit protection, waterproofing of electrical connectors (IP67)). To support NEV manufacturers and repair facilities, the assembly comes with a 48-month/150,000km warranty (covering motor, gearbox, and electrical components) and dedicated technical support—including powertrain calibration, AMT shifting logic adjustment, and fault diagnosis training