BYD oil pump controller

BYD Oil Pump Controller

Among the key players in this revolution is BYD, a Chinese company that has established itself as a leader in electric vehicle manufacturing and battery technology. One of the essential components in the performance of electric vehicles is the oil pump controller, a device that plays a critical role in managing the lubrication system of the vehicle.

The electric oil pump controller in mass production over 4 years.

Control features: FOC using flux-linkage or slip-flux observers eliminates the need for position vectors, thereby reducing the cost of position sensors; switching frequency (10K–20K) and low-loss modulation algorithms; strong load adaptability, smooth speed control (±0.5%), and a maximum acceleration of 9000 rpm/s; adaptive starting torque with automatic adjustment of start-up time and torque, resulting in short start-up times; High-Frequency Injection (HFI) algorithm suitable for low-speed operation (50–300 rpm); Weak Field (FW) control algorithm to increase motor speed; Overmodulation for speed enhancement + MTPA algorithm for improved efficiency;

Fault protection: protection against oil pump cavitation; overvoltage, overcurrent, overload and stalled rotor protection; rotor out-of-step detection protection; phase current imbalance and phase loss detection; in over-temperature protection mode, operation at reduced fundamental frequency is possible to minimize switching device losses.

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