For oil pumps driven by brushless DC motors, we offer a complete automotive oil pump control solution supporting PMSM/BLDC with sensorless control and ultra-fast startup, accelerating the development and production of oil pump controllers.
Key Points
- No Hall sensors required
- Reliable startup, validated at -40℃
- Ultra-fast startup: reaches rated speed in 200ms
- Highly integrated chip with built-in CAN controller and temperature sensor
- LIN/CAN/PWM speed control, protocol customizable
- Enhanced trapezoidal (square-wave) drive algorithm and FOC drive algorithm
- Reliable high-speed algorithm
- Comprehensive fault detection and protection mechanisms
- Complete hardware and software design references
Solution Overview
The solution is built on the NXP MagniV S12ZVM, a highly integrated motor-control-specific chip that embeds an LDO, gate driver, LIN physical layer and CAN controller, so the external circuitry only requires a three-phase MOSFET bridge and a few basic components.
Recommended MCU
- S12ZVM Series;
- S32K Series (alternative);
- KEA Series (alternative)
Core Components
- IC: S912ZVML12F1WKH (NXP)
- CAN transceiver: NXP, full part number available on request
- MOSFET: Nexperia, full part number available on request
Reference Design S12ZVM_Motor_EVB Rev.B
- Supports FOC control based on single- or dual-shunt current sampling
- Supports sensorless trapezoidal (square-wave) control
- MOSFET short-circuit protection
- DC bus overvoltage/undervoltage protection and overcurrent protection
- Reserved CAN/LIN/UART interfaces for easy debugging and testing
- Trapezoidal startup algorithm optimized for oil pump control, for fast motor startup
- Improved FOC startup control algorithm for fast motor startup
- All-new high-speed FOC algorithm that raises the maximum motor speed
- Complete hardware design documentation and hardware design guide
- Complete software design documentation and software algorithm guide
Functional Block Diagram
