4 results about "Programmable load" patented technology

The embodiment of the invention discloses a super charging interface metrological verification device and method, and the device comprises a communication simulation unit which communicates with a super charging pile and is used for controlling the starting or stopping of a charging process. And the charging interface control simulation unit is used for being electrically connected with the super charging pile and providing a corresponding electrical parameter acquisition interface. And the programmable load unit is used for simulating a power battery load of the electric vehicle and receiving the electric energy transmitted by the charging interface control module. And the battery voltage simulation unit is connected with the interface control simulation unit of the charging interface control module and is used for simulating the battery voltage of the electric automobile. And the electric energy metering unit is electrically connected with the charging interface unit and is used for performing electric energy metering detection on the process of acquiring the electric energy by the programmable load unit to obtain an electric energy detection result. According to the invention, the metrological verification problems of large transient power and short charging time of a super charger of an existing charging facility are solved, and the metering accuracy of a high-power charging interface is effectively guaranteed.

The invention provides a dual-redundancy R-EPS steering system electronic power unit performance detection device, and relates to the technical field of steering system testing. The control unit is in communication connection with the upper computer; the actuating mechanism comprises a programmable load motor, the control end of the actuating mechanism is connected with the control unit, and the output end of the actuating mechanism is connected with a motor output shaft of the tested electronic power unit; the sensing feedback module comprises a plurality of sensors used for collecting operation parameters of the tested electronic power unit, and each sensor is connected with the control unit; the fault simulation module is integrated in the control unit, and the output end of the fault simulation module is used for connecting a fault injection node of the tested electronic power unit; wherein the programmable load motor, the sensing feedback module and the fault simulation module form an integrated test system for performing dynamic load test and active fault injection test on the tested electronic power unit under the coordination of the control unit. High integration and automation of the detection process can be realized, and the test efficiency and consistency are improved.

The application belongs to the technical field of brake system performance testing, and relates to an automatic testing system and method for HCU liquid path performance of a vehicle brake system. The system is arranged in a fully-closed safety cabinet, and comprises an upper computer, a servo cylinder pressure building, HCU control, dynamic cooling and a programmable load simulation unit. The system is cooperatively controlled through a CAN bus to realize accurate cooperation of pressure building, pressure maintenance, pressure reduction and valve body driving. The dynamic cooling system adjusts air cooling parameters according to load and time length to ensure stable coil temperature rise. The programmable load unit simulates working condition load by combining multiple steel cylinders. The testing method comprises the steps of preparation, parameter configuration, automatic exhaust, automatic testing, safety monitoring and report generation. Data is collected at high frequency throughout the process, and a PDF report with diagnostic suggestions is automatically analyzed and generated for archiving and storage in a three-level structure. The application realizes full-process automation, has high testing precision, high safety and traceable data, and can efficiently complete HCU liquid path performance detection.

The application relates to a portable power distribution terminal battery health inspection device and method. The device comprises: a battery inspection module for online parameter identification and health state evaluation of a backup battery of a power distribution terminal based on a battery equivalent circuit model; a debugging interface module integrated with an overcurrent protection circuit and an overvoltage suppression module; an analog circuit breaker module for simulating circuit breaker opening and closing operations, applying programmable load power to the power distribution terminal to verify the dynamic output performance of the battery; a state indication module for monitoring the connection state of the debugging interface module based on non-contact sensing technology and providing visual indication; and a communication detection module for listening to and analyzing communication data between the power distribution terminal and a superior master station, and verifying the quality of the communication link. The method can improve the accuracy, completeness and field operation efficiency of the power distribution terminal battery health state evaluation.