Water Pump / Oil Pump / Fan Controllers
Automotive-grade low-power motor drive platform
Overview
A DC motor controller (DCU) for thermal management, lubrication and ventilation systems. Built with automotive-grade power devices and fully digital PID control, it drives water pumps, oil pumps, fans and compressors with variable speed and full protection.
The product has been shipped overseas in volume, featuring ultra-low quiescent current, wide temperature operation and IP67 protection for under-hood and chassis mounting.
Key Functions
Fully digital PID
Closed-loop speed control with high accuracy and fast response to target speed commands.
Multi-layer protection
Bus over-current, short-circuit, over-temperature, under-voltage and stall protection with reporting.
Ultra-low quiescent current
Below 1 mA in sleep mode, meeting always-on node power budgets.
Flexible control interfaces
Dual-channel CAN 2.0B and PWM speed control for networked or stand-alone operation.
Wide temperature & sealing
-40 °C to +85 °C operation with IP67 sealing for engine-bay environments.
Multi-load support
One hardware platform for electric water pumps, oil pumps, cooling fans and HVAC blowers.
Specifications
| Control method | Fully digital PID closed-loop speed control |
|---|---|
| Interfaces | CAN 2.0B + PWM speed control |
| Quiescent current | < 1 mA |
| Supply voltage | 9–32 V DC (12 V / 24 V compatible) |
| Operating temperature | -40 °C to +85 °C |
| Ingress protection | IP67 |
| Protection | Over-current / short-circuit / over-temp / under-voltage / stall |
| Suitable loads | Electric water pump, oil pump, cooling fan, blower |
Applications
- Engine and battery thermal-management water pumps
- Transmission and turbocharger oil pumps
- Radiator and condenser fans
- DC motor drives for construction and agricultural equipment
Why It Wins
Platform reuse
One hardware design covers multiple motor loads, reducing part numbers and inventory cost.
Volume export record
Continuous overseas delivery with long-term field reliability data.
Domestic components
Localized power and control devices keep cost and lead time stable.
Fast customization
Power class, interface and mounting structure adjustable to customer needs.
Related Products
Frequently Asked Questions
Common questions about cooperation, lead time and certifications
What are the typical applications of Water Pump / Oil Pump / Fan Controllers?
Key applications include: Engine and battery thermal-management water pumps, Transmission and turbocharger oil pumps, Radiator and condenser fans, DC motor drives for construction and agricultural equipment.
What is the delivery form and technical support scope of Water Pump / Oil Pump / Fan Controllers?
We can supply a complete package of controller hardware, basic software and application software, or deliver hardware and software modules separately to fit your existing platform. CAN / UART protocols, calibration tools and integration support are included.
Do you support customized hardware and software development?
Yes. We cover the full stack — chip selection, hardware design, basic software (AUTOSAR / MCAL), application algorithms and calibration — and co-develop with vehicle and equipment OEMs, including support for DV/PV testing and vehicle calibration.
Which quality systems and certifications do you hold?
We are certified to ISO 9001:2015. Product development follows the ISO 26262 functional safety process (up to ASIL-D) and the AUTOSAR architecture standard; defence and UAV-related products meet GJB 150A / GJB 151B environmental requirements.
Need controller selection or custom development?
Tell us your E/E architecture, power level and target market — we respond with a preliminary proposal within 48 hours.