Development of auto body electrical system instructional trainer with combined switches / by Philip James H. Estosane and Jeremy D. Moreno.

Design Project (Bachelor of Industrial Technology Major in Automotive Technology) Cavite State University.

Includes bibliographical references.

College of Engineering and Information Technology (CEIT), Department of Industrial Engineering and Technology

ESTOSANE, PHILIP JAMES H and MORENO, JEREMY D. Development of Auto
Body Electrical System Instructional Trainer with Combined Switches. Undergraduate
Design Project. Bachelor of Industrial Technology major in Automotive Technology.
Cavite State University, Indang, Cavite. June 2019. Adviser: Mr. Danielito R. Escano.
The lighting system of a motor vehicle consists of lighting and signaling devices mounted
or integrated to the front, rear, sides, and in some cases, the top of a motor vehicle. This lights
the roadways for the drivers and pedestrians to see a vehicle's presence, position, size,
direction of travel, and the driver's intentions regarding direction and speed of travel.
The design project was enhanced and conducted in Brgy. Poblacion 1, G.M.A, Cavite and
evaluated by the instructors and students of Automotive Section in the Department of Industrial
Engineering and Technology under the College of Engineering and Information Technology of
Cavite State University Main Campus, Indang, Cavite.
This study aimed to design, construct and develop an auto body electrical system
instructional trainer with combined switches. This will serve as training enhancement skills for
the students to easily understand the flow of the current that enables the lighting components to
work before applying their learning to an actual vehicle. The design project was considered an
additional trainer in the Automotive Technology Section so that the students will be more
interested in the topic that they tackle; understand easily the correct wirings of every lights, and;
perform trouble shooting on basic automobile lighting system.
The design project has two carrels. The table is made up of plywood and has a Formica
to cover the floor of the design project. The wall of the design project is made up of marine
plywood. The frame has an angular bar and G.I pipe welded according to the design of the
frame. The table has a dimension of 6' x 2.5' x 4.5'. It was painted with white enamel to be more
clean, and presentable. The lights, switches, and circuit protection device were installed
according to the design of the authors, and mounted using steel wires, bolts and nuts. The
respective wires for the lights and switches are fixed in the terminal block. The students just use
the other side of the terminal block to connect the correct flow of the wirings. The design project
used eight separate terminal blocks. The lights were mounted in front of the students and the
switches are located in the lower corner of the table. The fuse box is in the left corner and the
relays are on the right side. The panel gauge is in front of the students so that it will be easier
for them to understand the correct wirings.
As the authors turned the ignition switch, the oil, battery and hand brake in the panel
gauge opened. When the headlight switch was pulled first, the parklight and taillight opened.
Once it was pulled for the second time, headlight, parklight and taillight opened lastly, when the
dimmer switch was pushed, the headlight adjusts from low to high beam, and from high to low
beam. The authors noticed that when the headlight was turned on and off, for the third time, the
LED bulb was blinking when on low beam. The authors also noticed that if all lights are opened
in two carrels, the new converter charger can supply. However, the headlight high and low
beams are both open. It was observed that the installed power supply converter charger needs
additional reinforcement of direct current supply from a 12V battery to support the voltage
requirement of the trainer.
The evaluation was conducted in the Automotive Technology Section of the Department
of Industrial Engineering and Technology. The evaluation was attended by 25 students and five

faculty members of Automotive. The respondents evaluated the design project according to its
functionality, workability, durability, and safety. The design project was found out to be useful in
the Automotive Technology Shop, and graded by the respondents outstanding based on the
questions in the evaluation form.

Submitted to the University Library 08/22/2019 DP-718