2results about How to "Eliminate frustration" patented technology

This invention relates to the field of vehicle control for new energy vehicles, specifically to a braking energy recovery resistor device and control method for new energy vehicles under high SOC conditions. The device includes a vehicle control unit (VCU), a battery management system (BMS), a multi-function device, a high-voltage wiring harness, a drive motor, a braking resistor control unit, a braking resistor module, a temperature sensor, a cooling module, and a high-voltage contactor. The BMS and the multi-function device are communicatively connected to the VCU. The braking resistor control unit is also communicatively connected to the VCU. The multi-function device is connected to the power battery, drive motor, braking resistor module, and high-voltage wiring harness. The control terminals of the multi-function device and the braking resistor control unit are connected, enabling real-time information exchange and intelligent control. This invention aims to achieve uninterrupted electric braking under high SOC conditions, stable bus voltage, battery overcharge protection, long-term reliable resistor operation, and improved braking smoothness and safety.

The application discloses a metro pulse passenger flow-oriented escalator control method, equipment and medium, the method comprises the following steps: according to metro train operation data, construct the pulse passenger flow trigger sequence based on discrete events, calculate the continuous passenger flow injection curve arriving at the entrance of the escalator;The future dynamic load torque of the escalator is predicted by using PINN network;In combination with the predicted dynamic load torque, the minimum system operation energy consumption, mechanical wear and queuing congestion penalty are taken as the comprehensive target, the multi-objective nonlinear model predictive control optimization problem is constructed and solved, the optimal speed control instruction is generated and issued to the escalator frequency converter for execution.The application can accurately reconstruct the real-time quality distribution on the escalator, and calculate the future dynamic load torque accordingly, and the controller adjusts the motor operation accordingly, so that it always works at the optimal slip frequency point, reduces the energy consumption of the escalator, reduces the wear of parts, prolongs the service life.