Đồ án tốt nghiệp - Analyze and design a practice model of the Vinfast Vfe34 electric Motor

MINISTRY OF EDUCATION &amp TRAINING
HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION
FACULTY OF INTERNATIONAL EDUCATION

GRADUATION THESIS
ANALYZE AND DESIGN A PRACTICE MODEL OF THE
VINFAST VFe34 ELECTRIC MOTOR
LUU ANH TUAN
Student ID: 19145186
PHAM DUC MANH
Student ID: 19145154
Major: AUTOMOTIVE ENGINEERING
Supervisor: HUYNH QUOC VIET, M.Sc.

Thu Duc City, June 15th, 2025

ACKNOWLEDGEMENTS
First of all, we very grateful to our parents for creating the best conditions for us to have
the opportunity to study and research in the best possible environment. We would like to
express our sincere thanks for the constant words of encouragement from our parents so
that we could put our best efforts and confidence in completing this research.
In order to finish this project, we would like to express our gratitude to all of the
instructors at Ho Chi Minh City University of Technology and Education, particularly the
faculty members of the Faculty of International Education, for their enthusiastic
instruction and unwavering support, which allowed us to gain a great deal of knowledge
while we were students.
Our group would like to sincerely thank Mr. Huynh Quoc Viet, the instructor, for his
enthusiastic support, guidance, and suggestions during the groups graduation thesis
completion process. In order to facilitate the research process, he gave us access to a
good equipped workshop.
In addition, the group expressed gratitude to every employee in Mr. Huynh Quoc Viet’s
workshop for their enthusiastic support in acquiring additional knowledge necessary to
finish this aptitude.
Once again, we would like to thank the teachers at Ho Chi Minh City University of
Technology and Education and the teachers of the Faculty of International Education.
Ho Chi Minh City, June 2025
Group Authors
Luu Anh Tuan and Pham Duc Manh

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TABLE OF CONTENTS
ACKNOWLEDGEMENTS ................................................................................................ i
TABLE OF CONTENTS ................................................................................................... ii
TABLE OF FIGURES .......................................................................................................iv
LIST OF TABLES ...........................................................................................................viii
LIST OF ABBREVIATIONS ........................................................................................... ix
Chapter 1. OVERV
...

...
wer to pin M


Listen to the relays clicking sound after power is applied: If there is a clicking
sound, the relay is working properly.

Step 5 : Measure the resistance between the connection pin from FC- to BAT

If the meter shows 1 ohm (and there is a clicking sound) then the DC- charger
fuse is good.



If the meter shows 1 ohm (and no clicking sound) then the DC- charger fuse is
blown.

2. Check DCDC port
Step 1 : Prepare the meter


Switch the meter to resistance measurement mode.

Step 2 : Measure the resistance between the DC+ and DC- pins


Measure the resistance between the DC+ and DC- pins.



If the circuit is open (very high or infinite resistance), then it is a fault.

3. EDS fuse check
Step 1 : Prepare the meter


Switch the meter to resistance measurement mode.

Step 2 : Measure and check the continuity between BAT(+) and EDS(+)


If the meter shows 1 Ohm (and beeps), then the EDS fuse is good.

Step 3 : Measure and check the continuity between BAT(-) and EDS(-)


If the meter shows 1 Ohm (and beeps), then the circuit is OK.

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4. Check Compressor Fuse
Step 1 : Prepare the meter


Switch the meter to resistance measurement mode.

Step 2 : Measure and check the continuity between BAT (+) and EAC (+)


If the meter shows 1 Ohm (and beeps), then the compressor fuse is good.

Step 3 : Measure and check the continuity between BAT (–) and EAC (–)


If the meter shows 1 Ohm (and beeps), then the circuit is OK.

5. Check Relay operation in 3in1 set:
- Check L - M pins if there are resistance parameters, the coil of the DC relay is still
working normally.
- Check L - K pins if there is resistance parameter, the coil of DC+ relay is still working
normally

LVC socket pin position

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Test content

Results achieved

Evaluate

FC(+) – BAT(+)

..........Ω □ 1Ω □ 1Ω

Good / Bad

FC(–) – BAT(–)

..........Ω □ 1Ω □ 1Ω

Good / Bad

Hear the relay click

□ Yes □ No

Good / Bad

DC(+) - DC(–)

..........Ω

Connected / Open Circuit

BAT(+) – EDS(+)

..........Ω □ 1Ω □ 1Ω

Good / Bad

BAT(–) – EDS(–)

..........Ω □ 1Ω □ 1Ω

Good / Bad

BAT(+) – EAC(+)

..........Ω □ 1Ω □ 1Ω

Good / Bad

BAT(–) – EAC(–)

..........Ω □ 1Ω □ 1Ω

Good / Bad

Battery L–M (relay DC–)

..........Ω

Good / Bad

Pin J–K (relay DC+)

..........Ω

Good / Bad

V. SAFE PRACTICE
- Disconnect power completely before checking.
- Do not touch the components directly when they are energized.
- Use well insulated equipment.

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