2results about How to "Less calibration work" patented technology

This invention discloses a conductivity adjustment system for a dialysis mixing device, including an RO water flow sensor, a B-liquid conductivity sensor, a dialysate conductivity sensor C, an RO water pump, a B-liquid infusion pump, an A-liquid infusion pump, a B-liquid feedforward controller, a dialysate feedforward controller, a B-liquid parameter adaptive PID feedback controller, and a dialysate parameter adaptive PID feedback controller. Employing a feedforward + feedback control strategy to adaptively adjust parameter variables during the mixing process, this patent enables large-scale automated mixing of dialysate.

This invention relates to the field of permanent magnet synchronous motor vector control technology, specifically to a rapid calibration method for permanent magnet synchronous motors in new energy vehicles. It includes a calibration table for the maximum torque-to-current ratio; a calibration table for the motor flux linkage; a calibration table for the motor inductance; and obtaining the target torque T. req And by consulting the calibrated lookup tables, the required d-axis current i to be output is obtained. dref and q-axis requested current i qref This method does not require the motor to operate at high speeds, reducing risks and minimizing the need for high-speed testing benches. It also offers high calibration efficiency and high control precision.