headlight and low beam system of toyota innova 2018

- Analyze the operating principle of the circuit diagram of the headlight and high beam system on the Toyota Innova 2018.. Classification headlight systems in vehicle 2.4.1, The headligh

Name Coures: Automotive Electriccal and Electronic System Project

Supervisor: NGUYEN VAN NHANH

Student’s name:

1 Vuong Ngoc Hiéu Student’s ID: 2182500316 Class: 21DOTQAI

2 Nguyễn Hữu Doanh Students ID: 2182501314 Class: 21DOTQAI

Ho Chi Minh City, 2023

Acknowledgement

In today's modern life, cars are a very commonly used means of transportation for people's transportation needs Car equipment is also increasingly developing and becoming more modern to meet user needs, while also playing an important role in ensuring driver safety and vehicle movement

Under the guidance of teacher Nguyen Van Quick, we completed the project on

"Headlight and high beam system on Toyota Innova 2018" of the Automotive Electrical and Electronics System Project subject on time We would like to send our sincere thanks to Mr Nguyen Van Nhah, he has always followed and helped us during the project process to successfully complete this subject project However, because our knowledge is still limited, in the process of completing this project, I cannot avoid mistakes Looking forward to receiving your comments

Finally, we would like to sincerely thank teacher Nguyen Van Nhanh and his classmatessupport Assist your group in completing the project

Member Vuong Ngoc Hiéu Nguyễn Hữu Doanh

Table of Contents

2.4.3 The headlight system has both a headlight relay and a brightness adjustment relay 0.00.00 c 2c 2 22122211231 111 12111111111 111111 1110110111811 101g Hà 9 2.5 Lighting technologies used for headliglhts 5 22 222222 x22<<xc+s 12 2.5.1 Halogen headlights - c2 2 212211121113 111 1112111111111 12 2.5.2 Xenon headlights - 2221211121121 1 12111511511 151211 1211211811 r 13 2.5.3 LED headlights - L2 2222211121211 121 1111121151121 121201181 Hk rà 15 2.5.4 Laser headliplhts - - - L0 0 021120 11111111111 1111111111111 111111111111 1xx 17 2.6 Some common damages and repair measures on car headlight system 19 CHAPTER 3: ANALYSIS OF THE ELECTRICAL CIRCUIT DIAGRAM

OF THE HEADLIGHT AND STEAM LIGHT SYSTEM OF THE

List of Table Table 2.1: Compare advantages and disadvantages high-beam and low-beam 4

List of Figures, chart, diagram

Chapter 2: Introduction to the topic

Figure 2.1: When the circuit is in low beam mode cece eeetceteeteeteeneeseneenes 5 Figure 2.2: When the circuit is in hiịph beam mode - 5: 22222222 csssse2 5 Eigure 2.3: When the circuit 1s in Flash mode 2: c2 2222122211212 rrey 6 Figure 2.4: The headlight system has a headlight relay but doesn’t have a brightness adjustment relay GITCUIf - 2 22 2222211211211 1231 1111511151 1811 118111811 r2 7 Figure 2.5: When the circuit In low beam mode -.- ¿+ 22 1c 22x te srrrere 7 Eigure 2.6: When the circuit in hieh beam mode - 2 222: 2232222222323 2s+2 8 Eigure 2.7: When the circuit In Flash mode ¿+ 2: 2222232312121 s52 8 Figure 2.8: The headlight system has both a headlight relay and a brightness adjustment relay CITCUIĂ - 2 2 2 0201221120 112321 115111111511 151 11111112111 1111111 H1 kh 9 Eigure 2.9: When the circuit in low beam mode -:- 222 22 22322222212 xzsxes 10 Figure 2.10: When the cireutt in hieh beam mode 22 552222 * 22222 s2zxszss2 10 Figure 2.11: When the cireutt in Flash mode ¿52 22 223222222122 222 12x22 xs+2 11 Figure 2.12: Sturcture of Halogen headlight ¿+52 22222222213 32222+zszsxszxs2 12 Figure 2.13: Halogen headlight on Chevrolet Impala 2015-2020 12 Figure 2.14: Structure of Xenon headlighit - 2 2c 22122121151 151 1122111 re 13 Figure 2.15: Xenon headlight on KIA Morning car ¿5c sex cccsxszscess2 14 Figure 2.16: Structure of LED headlight coc ccccccecetecsetecnscteeseenseseeseenes 15 Eigure 2.17: LED headlipht assembly on Audi Q7 MlatrIx c 255cc s55 16 Figure 2.18: Structure of Laser headlipht - - 22: 22222221 1212212151 25115221252 17 Figure 2.19: Laser headlight on BMIW ¡8 2014 2 0 2.12112212112112 82x rre 17 Figure 2.20: Light distance of four types of four car headlights 18 Chapter 3: Analysis of the electrical circuit diagram of the headlight and steam light system of the toyota innova 2018

Eigure 3.1: Headlipht system circuIt diasram of Toyoya Innova 2018 21 Figure 3.2: Toyota Innova lighting system on the proteus application 23

IV

CHAPTER 1: INTRODUCE THE TOPIC

1.1 Question

Today we are in the period of industrialization and modernization of the country, followed by an increasing demand for travel, making means of transportation become indispensable for everyone Especially with the development of the automobile industry in Vietnam today, the need to use cars in traffic is something that people consider and choose a lot because of the safety and convenience that they provide bring Originating from the above needs, many problems have arisen for auto mechanics and engineers who must equip themselves with the necessary knowledge about the systems on a car One of them is the car's lighting system, which helps drivers move safely at night

From the above needs, I chose the topic for my group "Research on the headlight system of Toyota Innova 2018"

1.2 Topic objective

- Synthesize knowledge gained in theory and practical sessions in class, thereby helping students improve their professional skills and independent research ability

- Draw the circuit diagram of the system to assemble the model for its operation, thereby selecting the appropriate components to assemble the circuit model and simulate the operation of the system from the theoretical basis given learn about

1.3 Content of the subject

- Learn the tasks and operating principles of the lighting system of the Toyota Innova 2018 Analyze the advantages and disadvantages of two types of lights, headlights and low beams, in the system

- Design the headlight and low beam system diagrams on protues software

- Analyze the operating principle of the circuit diagram of the headlight and high beam system on the Toyota Innova 2018

- Analyze some common damages and causes in the lighting system

1.4, Research methods

- Look up information in documents on the internet, repair documents, technical documents and circuit diagrams of the vehicle's headlight and low beam

systems

- Refer to the instructors’ opinions and suggestions

- Research how the components used to make the model work

1.5 Project structure

- CHAPTER 1: INTRODUCTION TO THE TOPIC

- CHAPTER 2: THEORETICAL BACKGROUND

- CHAPTER 3: ANALYSIS OF THE ELECTRICAL CIRCUIT DIAGRAM OF THE HEADLIGHT AND STEAM LIGHT SYSTEM OF THE TOYOTA INNOVA 2018

- CHAPTER 4: CONCLUSION

CHAPTER 2: THEORETICAL BASIS

2.1 Name origin, define:

In the car lighting system, there are many types of lights, two of them are headlights and low beams This is a basic and very important light system on most types of vehicles and they are often arranged at the front of the vehicle to ensure safety for the driver to see the road when driving at night

2.1.1 Name origin

The reason they are called headlights and low beams is because "this is a name borrowed from French: "phare"” and "code" The word phare in “"les phares d'automobiles" or "plein phare" means high beam lights on cars, or it also means lighthouse - a type of high beam light often used at sea Similarly, the word "code"

in the phrase "feux de croisement" means the low beam of a car”, Although quite complicated, most Vietnamese consumers often just call them headlights and low beams for easy remembering

2.1.2 Define

Headlight, is a type of lamp with strong lighting intensity, capacity of about 45W -70W and long lighting range (about 180m - 250m) Headlights provide higher visibility than conventional lights to help drivers at night see obstacles and signs from afar even when moving at high speed

Low beam lights, is a type of lamp with moderate lighting intensity and lighting

at close range (about 50m - 75m), the capacity of the lamp is in the range of 35W - 40W The brightness and illumination range of the lights are carefully calculated so

as not to affect the vehicle in front or the vehicle on the opposite side High-beam headlights with low beam angles help drivers observe road surface conditions at close range, but that makes handling situations while moving more difficult 2.2 Mission

2.2.1, Headlight

Because of its high lighting intensity and high lighting angle, drivers often use headlights on deserted roads with little traffic at night so as not to obstruct visibility

and cause discomfort to oncoming vehicles, when traveling on the highway, or before going through blind curves at night

The task of headlights is to help illuminate a far and wide range ahead so that the driver can clearly see the road When drivers want to increase visibility ahead, they will turn on the lights in high-beam mode to observe, avoid obstacles and see signs on the road

In addition, headlights also serve as a light bulb to signal surrounding vehicles when traveling on roads where the use of horns is prohibited or between 10p.m and 5a.m Flash your headlights continuously about 3 to 4 times to signal vehicles moving in the opposite direction

2.2.2 Low beam light

Because it is a low beam light with moderate brightness, low beam lights are often used when driving at low speeds, or when traveling in cities or residential areas with many passersby The task of high beam lights is to illuminate the driver

so that he can see obstacles on the road in close range and avoid causing glare to surrounding vehicles

2.3 Advantage and disadvantage of headlight, low beam light

Criteria Headlight Low beam light

@ Can illuminate long and wide | @ There is moderate lighting so it distances does not cause discomfort to

@ Easy to see the road ahead, people around

clearly see signs Helps drivers clearly see the

@ Helps detect obstacles ahead road surface and surrounding Advantages so you can handle situations scenery at night

promptly Helps avoid potholes and

« Low maintenance and potholes when traveling on bad replacement costs roads

« High protection level so not

affected by water and dust

@ May reduce visibility for Limited forward visibility at vehicles ahead long distances

Disadvantages | # Causing blinding to oncoming Difficult to handle unexpected

drivers and — surrounding situations when moving at high pedestrians speed

Table 2.1: Compare advantages and disadvantages high-beam and low-beam

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2.4 Classification headlight systems in vehicle

2.4.1, The headlight system does not have a headlight relay and brightness djustment relay

LO-beam

Taplo Signal phase light

Figure 2.1: When the circuit is in low beam mode

+ In low beam mode: When you turn the light switch to the HEAD (LOW)

position, the high beam lights will turn on." ®

Hl-beam

Taplo Signal phase light

+ In high beam mode: When you turn the switch to the HEAD (HIGH) position,

the headlights turn on and the headlights on the dashboard also turn on.© 4!

Figure 2.3: When the circuit is in Flash mode

+ In Flash mode: When the light control switch moves to the FLASH position, the

high beam headlights turn on.lŠ: $1

2.4.2 The headlight system has a headlight relay but does not have a brightness adjustment relay

Headlight 3 | HEAD LH HEAD RH

+ In low beam mode: When the light control switch moves to the HEAD (LOW)

position, the headlight relay is turned on and the low beam lights up." *!

control baa Lae |

switch BÁC HEAD od “mi "N

Figure 2.6: When the circuit in high beam mode

+ In high beam mode: When the light control switch moves to the HEAD (HIGH) position, the headlight relay is turned on and the headlight indicator light on the

dashboard is turned on.!>-*!

Figure 2.7: When the circuit

| | in Flash mode Light OFF

+ In Flash mode: When the light control switch moves to the FLASH position, the

headlight relay is turned on and the headlights and high beams come on : ẼÌ

2.4.3 The headlight system has both a headlight relay and a brightness adjustment relay

Mode relay (HIGH - LOW)

Headlight relay

LO-beam Relay mode (HIGH - LOW)

+ In low beam mode: When the light control switch moves to the HEAD (LOW)

position, the headlight relay turns on and the low beam lights turn on.) °!

+ In high beam mode: When the light control switch moves to the HEAD (HIGH) position, the headlight relay and brightness adjustment relay turn on, the high beam

lights turn on and the headlight indicator on the dashboard also turns on.) 7!

FLASH Mode relay (HIGH - LOW)

control TAIL o+-—-o

switch [HEAD Hot On (- C ) ©)

Signal phase light (on taplo)

Figure 2.11: When the circuit in Flash mode

+ In Flash mode: When the light control switch moves to the HEAD (HIGH) position, the headlight relay and brightness adjustment relay turn on, the high beam

lights turn on and the headlight indicator on the dashboard also turns on.) 7!

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2.5 Lighting technologies used for headlights

Figure 2.12: Sturcture of Halogen headlight

This is the most commonly used lighting technology, most of which are built-in

on many popular quality cars Halogen lights provide good lighting, especially on roads with bad weather such as heavy rain or dense fog When turned on, the lamp will emit yellow light and uses the incandescent lamp principle to operate The lamp can illuminate with a capacity of 55kW for an average of about 1000 hours

Figure 2.13: Halogen headlight on Chevrolet Impala 2015-2020

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