Development of automatic door lock device for SUV/ Michael Angelo U. David, Kenneth C. Galve, Zara Patricia B. Mariano, Theodore Leo C. Rabacio, Justine Vher C. Tabuzo, and Marteen Cloyd G. Valeza .--

Thesis (undergraduate)

College of Industrial Technology.-- Bachelor of Engineering Technology major in Mechanical Technology option in Automotive Technology:

This study introduces the development of an automatic door-locking device tailored for
sport utility vehicles (SUVs) during parking. Parking-related incidents, such as automotive
doors colliding with other vehicles or striking obstacles like trash bins and concrete posts,
pose common challenges for SUVs due to their inherent blind spots. The heightened height
and size of SUVs create difficulties for drivers and passengers, necessitating a solution to
address these issues. The primary aim is to implement a distance-sensing mechanism for
SUV doors, enhancing safety and mitigating the risk of parking-related vehicle damage.
The central control unit of the system is the Arduino Uno, programmed to activate the input
device an ultrasonic sensor and various output devices, including LEDs, a buzzer, and an
actuator. Systematic experimentation revealed that programming the Arduino Uno with a
60.96 centimeters trigger distance effectively activates the input device, ensuring optimal
functionality. The evaluation of the developed prototype is based on six criteria:
functionality, aesthetics, workability, durability, economy, and safety. The assessment
resulted in an overall mean score of 4.48, accompanied by a descriptive rating of "very
satisfactory." This study addresses the prevalent challenges faced by SUVs in parking
situations, offering an effective solution that enhances safety, prevents vehicle damage, and
provides an overall satisfactory user experience.