Monitoring and alerting vehicle occupants for ignition systems

1. A vehicle comprising:

a cabin;

a touchscreen within the cabin;

an engine to activate responsive to the touchscreen receiving a passcode;

seats within the cabin;

occupancy sensor modules to detect occupancy of the seats; and

a warning controller to:

initiate a timer upon detecting, via the occupancy sensor modules, that an occupant has exited the cabin;

responsive to the touchscreen receiving a reentry of the passcode while the timer is initiated, deactivate the timer to prevent an alert from being emitted; and

emit the alert responsive to the timer reaching a predetermined threshold.

2. The vehicle of claim 1 , wherein the touchscreen receives the reentry of the passcode from another occupant with knowledge of the passcode when the occupant has exited the cabin.

3. The vehicle of claim 2 , wherein the occupant who has exited the cabin is an operator and the other occupant who enters the reentry of the passcode is a passenger.

4. The vehicle of claim 1 , wherein the warning controller deactivates the timer to prevent the alert from being emitted responsive to the touchscreen receiving another passcode that corresponds to deactivation of the timer.

5. The vehicle of claim 1 , further including a horn and lighting, wherein the alert includes at least one of an audio alert and a visual alert, wherein the warning controller emits at least one of the audio alert via the horn and the visual alert via the lighting.

6. The vehicle of claim 1 , wherein the seats include a driver seat and a passenger seat, one of the occupancy sensor modules monitor the driver seat, and another of the occupancy sensor modules monitor the passenger seat.

7. The vehicle of claim 1 , wherein one or more of the occupancy sensor modules includes a seatbelt sensor to detect whether the occupant is positioned at a corresponding one of the seats within the cabin.

8. The vehicle of claim 1 , wherein one or more of the occupancy sensor modules includes a door-ajar sensor that monitors a door adjacent to a corresponding one of the seats to detect whether the occupant is positioned within the cabin.

9. The vehicle of claim 8 , wherein the warning controller detects that the occupant has exited the cabin from the corresponding one of the seats responsive to determining that:

the occupant was positioned at the corresponding one of the seats; and

the door adjacent to the corresponding one of the seats is subsequently open for a predetermined period of time.

10. The vehicle of claim 1 , wherein one of the occupancy sensor modules includes at least one of a motion detection sensor, an infrared sensor, and a camera to detect whether the occupant is positioned at a corresponding one of the seats within the cabin.

11. The vehicle of claim 1 , further including a keypad outside of the cabin, the keypad to receive another passcode for at least one of unlocking and opening a vehicle door.

12. A vehicle comprising:

a cabin;

a touchscreen;

an override button

an engine to activate upon the touchscreen receiving a passcode;

seats;

occupancy sensors to detect seat occupancy; and

a controller to:

initiate a timer upon detecting, via the occupancy sensors, that an occupant has exited the cabin;

deactivate the timer upon the override button being pressed to prevent an alert from being emitted; and

emit the alert upon the timer reaching a predetermined threshold.

13. The vehicle of claim 12 , wherein, responsive to the touchscreen receiving a reentry of the passcode while the timer is initiated, the warning controller deactivates the timer to prevent the alert from being emitted.

14. A vehicle comprising:

a cabin;

a touchscreen within the cabin;

an engine to activate responsive to the touchscreen receiving a passcode;

seats within the cabin;

occupancy sensor modules to detect occupancy of the seats;

an ignition switch;

an ignition switch sensor to monitor the ignition switch;

a transmission;

a transmission position sensor to monitor a position of the transmission; and

a warning controller to:

detect whether an occupant has exited the cabin responsive to the ignition switch being activated and the transmission being in park or neutral;

initiate a timer upon detecting, via the occupancy sensor modules, that an occupant has exited the cabin; and

emit an alert responsive to the timer reaching a predetermined threshold.

15. A method comprising:

receiving a passcode via an input device in a cabin of a vehicle;

activating, via a processor, an engine responsive to the input device receiving the passcode;

detecting occupancy of seats within the cabin via occupancy sensor modules;

initiating, via the processor, a timer upon detecting, via the occupancy sensor modules, that an occupant has exited the cabin;

deactivating the timer to prevent an alert from being emitted responsive to receiving an input via an override button while the timer is initiated; and

emitting the alert responsive to the timer reaching a predetermined threshold.

16. A method comprising:

receiving a passcode via an input device in a cabin of a vehicle;

activating, via a processor, an engine responsive to the input device receiving the passcode;

detecting occupancy of seats within the cabin via occupancy sensor modules;

initiating, via the processor, a timer upon detecting, via the occupancy sensor modules, that an occupant has exited the cabin;

deactivating the timer to prevent an alert from being emitted responsive to the input device receiving a reentry of the passcode while the timer is initiated; and

emitting the alert responsive to the timer reaching a predetermined threshold.

17. The method of claim 16 , further including receiving the reentry of the passcode from a passenger upon a driver exiting the cabin of the vehicle.

18. The method of claim 16 , further including deactivating the timer to prevent the alert from being emitted responsive to receiving an input via an override button while the timer is initiated.

19. A method comprising:

receiving a passcode via an input device in a cabin of a vehicle;

activating, via a processor, an engine responsive to the input device receiving the passcode;

detecting occupancy of seats within the cabin via occupancy sensor modules;

detecting whether an occupant has exited the cabin responsive to:

detecting, via an ignition switch sensor, that an ignition switch is activated; and

detecting, via a transmission position sensor, that a transmission is in park or neutral;

initiating, via the processor, a timer upon detecting, via the occupancy sensor modules, that the occupant has exited the cabin; and

emitting an alert responsive to the timer reaching a predetermined threshold.

20. The method of claim 19 , wherein detecting that the occupant has exited the cabin includes:

determining that the occupant was positioned at one of the seats; and

detecting, via a door-ajar sensor of a corresponding one of the occupancy sensor modules, that a door adjacent to the one of the seats is subsequently open for a predetermined period of time.