New Energy Power parts Cooling system controller assembly 3613520-KV1B0

As the "brain" of the NEV’s cooling system, the 3613520-KV1B0 assembly delivers centralized, real-time control of multi-zone thermal management to optimize the performance and lifespan of critical NEV components. It collects data from 15+ temperature/humidity/pressure sensors (sampling rate up to 1kHz) across the vehicle—including battery cell temperatures, motor/inverter temperatures, and coolant loop pressures. The embedded software then executes intelligent control strategies: 1) Battery Thermal Regulation: Adjusts BTMS water pump speed and EEV opening to keep battery cells within 25-40°C (optimal for charging efficiency and cycle life); 2) Powertrain Cooling: Modulates powertrain water pump and radiator fan speed to prevent motor/inverter overheating (≤120°C) during high-load operation; 3) Fuel Cell Temperature Control (for FCVs): Maintains fuel cell stack temperature at 60-80°C via precise coolant flow adjustment, ensuring efficient hydrogen reaction. It also coordinates cross-system cooling (e.g., using powertrain waste heat to warm batteries in cold weather), reducing energy consumption by 15-20% compared to independent zone control

The 3613520-KV1B0 cooling system controller features a NEV-optimized rugged hardware structure to withstand the unique challenges of NEV operation—including high-voltage electromagnetic interference (EMI), extreme temperatures, and under-vehicle moisture/dust. The outer housing is constructed from die-cast aluminum alloy (ADC12) with a powder-coated finish, providing mechanical strength to resist impact from road debris and vibration (up to 25G peak acceleration, compliant with ISO 16750-3). The internal circuit board uses a double-layer conformal coating (epoxy + acrylic) to protect components from moisture, dust, and chemical corrosion (e.g., coolant splashes). Critical hardware components—high-performance MCU (e.g., NXP S32G3, 500+ MIPS), CAN FD transceivers, and power driver ICs—are rated for an operating temperature range of -40°C to 125°C, ensuring stable performance in freezing winters or hot under-hood conditions. The controller also has an IP6K9K waterproof/dustproof rating and meets EMC standards (CISPR 25 Class 5) to resist EMI from NEV high-voltage batteries and motors

The 3613520-KV1B0 is calibrated with NEV-specific technical parameters to maximize cooling efficiency and energy savings. Its processing capacity (500+ MIPS) enables simultaneous control of 8+ cooling peripherals (water pumps, fans, EEVs) with no latency. The electrical system supports NEV common voltages: 12V/24V for low-voltage control circuits and includes high-voltage isolation (2.5kV) to protect against electrical surges from the vehicle’s high-voltage battery (300V-800V). For communication, it uses dual CAN FD channels (up to 8Mbps) to exchange real-time data with the vehicle’s VCU (Vehicle Control Unit) and cooling peripherals, ensuring fast response to dynamic thermal changes (e.g., sudden battery temperature spikes during fast charging). The controller also features low standby power consumption (≤3W) to avoid battery drain when the vehicle is off, and its non-volatile memory can store thermal management logs for 5+ years—supporting post-fault analysis and maintenance

Both the hardware and software of the 3613520-KV1B0 cooling system controller meet strict global NEV quality and safety standards. The hardware is manufactured in accordance with ISO/TS 16949, with 100% factory testing including: electrical performance validation (signal accuracy, voltage stability), environmental stress testing (temperature cycling, humidity, vibration), and durability testing (simulating 15-year/300,000km NEV lifespan). The software is certified to ISO 26262 (functional safety) at ASIL B level—critical for its role in protecting safety-critical components like high-voltage batteries. It also complies with NEV-specific standards: GB/T 18384 (EV safety requirements) for Chinese-market models, IEC 60664 (high-voltage insulation) for high-voltage compatibility, and ISO 14644 (cleanroom standards) for FCV-compatible units. To support NEV manufacturers and repair facilities, the controller comes with a 36-month/80,000km warranty (covering hardware defects and software bugs) and dedicated technical support—including thermal strategy calibration, CAN FD protocol configuration, and fault diagnosis guidance