Delay automatic stop switch circuit design

The car delay automatic stop switch is very simple in principle. When you come out of the car, a button switch installed in a secret position is pressed, and nothing seems to happen on the surface, but after a predetermined time. The relay is closed and blocked. When the relay is closed, its contact is disconnected, and the high-voltage lead wire that is ignited to the coil or the live switch of the key switch to the starter coil is disconnected. If the motor is running, he will stop immediately and the starter will not work. When you enter the car, another button switch is pressed, the relay is released, and all states of the circuit return to normal.