Development of Monitoring and Calibration System for Vehicle Control Unit of Truck Crane Based on LabVIEW

To address the need for real-time data monitoring and online parameter modification during the debugging and calibration of the Vehicle Control Unit (VCU) in an extended-range truck crane, this paper proposes and designs a monitoring and calibration system based on the LabView virtual instrument platform. The system integrates key functionalities, including CAN communication, real-time data analysis, lower-level memory management, and monitoring data recording. It also provides an innovative, efficient calibration solution that eliminates the need for CCP/XCP protocols.Compared to traditional calibration tools, the system features a simplified interface, easy operation, and strong scalability. It enables real-time monitoring of the status of each relay and component within the vehicle. Furthermore, it simplifies the calibration parameter modification process by modularizing key VCU parameters, which significantly improves debugging efficiency while reducing hardware dependence and costs.The system was verified in actual vehicle tests, focusing on high-voltage power management and torque control functions. The results demonstrate that the system exhibits excellent reliability, real-time performance, and scalability, with broad engineering application prospects.