Power Tailgate Closing

Courtesy of HYUNDAI MOTOR AMERICA

PTGM Closing procedure: 

1. Closing can be triggered after receiving a signal from, console (driver) switch, outside handle switch, remote key (FOB), inner switch
2. PTG module controls the tailgate motor in order to close the tailgate
3. Closing angle of the tailgate is calculated by counting the input pulse signals from hall sensor
4. The rotating speed of the tailgate motor can be hall sensor that is built in the motor
5. The tailgate latch engages with the striker and the latch is locked mechanically (Latch unlock → Latch lock)
6. PTGM stops the tailgate motor operation after detecting the tailgate latch's secondary signal
7. On detecting the latch's secondary signal, the power close unit (PCU) starts the contract (cinch) operation and stops after the latch lock signal is detected
8. After contract operation is stopped, PCU is rewound until the PCU home position is reached
9. The tailgate is completely closed and latch is fully locked