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An electronic water pump is an integrated fluid-handling device driven by a standalone motor and controlled via an electronic closed-loop system.
Release Date:
2026-03-11
An electronic water pump is an integrated fluid-handling device driven by a standalone electric motor and controlled via an electronic closed-loop system, completely eliminating the conventional mechanical pump’s reliance on engine or vehicle-engine crankshaft belt drive. It receives signals such as temperature and pressure through the ECU/MCU and uses PWM or a bus (LIN/CAN) to dynamically adjust speed and flow rate in real time, delivering coolant or other fluids on demand.
An electric water pump is an integrated fluid-handling device driven by a standalone electric motor and controlled via an electronic closed-loop system, completely eliminating the conventional mechanical pump’s reliance on engine or host-vehicle crankshaft belt drive. It receives signals such as temperature and pressure through the ECU/MCU and uses PWM or a bus (LIN/CAN) to dynamically adjust speed and flow rate in real time, delivering coolant or other fluids on demand.
Core Structure and Operating Principle
Main Components
Brushless DC motor (BLDC, mainstream): No carbon brush wear, long service life, and high efficiency;
Impeller + pump casing (centrifugal pump configuration, made of engineering plastic or metal);
Built-in controller (MCU + driver circuit);
Sealed system (IP67-rated waterproof and dustproof, with multi-layer mechanical seals to prevent leakage);
Sensors (temperature / pressure / speed feedback).
Operating procedure: The ECU issues commands based on parameters such as water temperature; the controller adjusts the PWM duty cycle; the brushless motor is driven to vary speed; the impeller rotates, generating centrifugal force that draws fluid in at the center and discharges it at high pressure at the periphery, thereby completing the circulation; even after shutdown, the system can continue to operate independently (e.g., during vehicle start-stop or fast-charging cooling).
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Zhejiang Huangyan Tiansheng Automotive Parts Co., Ltd.
Address: No. 6, Kangqiang Road, Huangyan District, Taizhou City, Zhejiang Province
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