Control System of Single-drive Double-branch Electric Vehicle Door Latch

Aiming at the electric unlocking and power release of single-drive double-branched vehicle door latch, a unit control system of the vehicle door latch is proposed. Using LabVIEW as the software platform, an intelligent control system for the vehicle door latch motor is built, the PLC address is rebuilt in OPC. LabVIEW is communicated with the PLC through the OPC software, and the designed controller could receive feedback from the internal sensor of the vehicle door latch. the total time required for each state can be calculated from the lock senor and release sensor signal and the motor torque's change curve can be displayed in real time. The physical experiment results show that the time required for power release is 70ms, which is consistent with ADAMS simulation results.