What do you learn about automotive electronic control? What do you need to learn about automotive el

Hello subject, automotive electronic control mainly learns the basic composition and application status of automotive electronic control system, engine integrated control system (including fuel injection control system, microcomputer control ignition system, idle control system, emission control system, air intake and boost control, variable valve phase control system, automotive transmission system, automotive driving safety control system (including automotive anti-lock braking system, automotive drive anti-skid system, automotive electronic stability program, electronic induction brake control system, electronic brake force distribution, airbags, automotive radar anti-collision system) hundred, door lock and anti-theft alarm system, cruise control system, electronic suspension system, automotive electronic power steering system, automotive local area network technology, other electronic control devices (including automotive electronic instruments, car navigation systems, car audio systems, car tachographs, smart cars) composition, control principles, as well as automotive electronic control system fault diagnosis and maintenance. Thank you, please!

Automotive electronic control mainly learns the basic composition and application status of automotive electronic control system, engine integrated control system (including fuel injection control system, microcomputer control ignition system, idle control system, emission control system, air intake and boost control, variable valve phase control system, automobile transmission system, automobile driving safety control system (including automobile anti-lock braking system, automobile drive anti-skid system, automotive electronic stability program, electronic induction brake control system, electronic brake force distribution, airbags). , automotive radar anti-collision system) hundred, door lock and anti-theft alarm system, cruise control system, electronic suspension system, automotive electronic power steering system, automotive local area network technology, other electronic control devices (including automotive electronic instruments, car navigation system, car audio system, car tachograph, intelligent car) composition, control principle, as well as automotive electronic control system fault diagnosis and maintenance. Thank you, please!

The biggest difference between an electronically controlled engine and a carburetor engine is the fuel supply system. The fuel supply system of the electronically controlled engine has eliminated the carburetor, but a number of electronic automatic control devices have been added. These include many sensors, actuators, and ECUs.

Electronically controlled engines have to do not only what carburetors do, but also what carburetors can't do. For example, the specific concentration of air-fuel in a combustible mixture can be controlled within the required range. The oil circuit and circuit of the carburetor engine are very clearly divided and do not affect each other much.

The electronically controlled engine fuel supply system increases the electronic control part, which makes the oil circuit and circuit interconnected, which not only affects the work of the engine fuel system, but also affects the normal operation of the engine. Due to the increase in electronic control devices for electronically controlled engines, this makes the entire structure of the engine, including the electronic control system, more complex.

Fast. Navigation.

Structural composition. How it works.

Parameters to be measured. Merit.

Basic idea. In the initial stage, the function of the system is realized by replacing the mechanical control technology with electronic technology, and its function is expanded, so that the performance is greatly improved; After the development to a certain extent, electronic technology can promote the essential change of the system principle, so that the limitations can be broken through, so that the engine performance can be greatly improved.

Electronically controlled engine.

Structural composition. Electronic control unit.

The electronic control unit (ECU) is the heart of the engine's electronic control system. It completes the collection of various parameters of the engine, the control of fuel injection volume and fuel injection timing, and determines the function of the entire electronic control system.

Sensor. Sensors transmit information about engine conditions and environment to the ECU in real time and realistically through various signals.

In other words, what the ECU learns is just an engine made up of many signals. Therefore, the accuracy, reproducibility and immediacy of sensor information directly determine the quality of control.

Actuators. The various control functions to be completed by the electronic control system are realized by various actuators.

In the control process, the actuator converts the control signal from the ECU into a certain mechanical motion or electrical movement, thereby causing the change of engine operating parameters and completing the control function.

How it works. The engine speed and load are used as the basic signals reflecting the actual working conditions of the engine, and the basic fuel injection amount and fuel injection timing are determined with reference to the fuel injection amount and fuel injection timing spectrum corresponding to each working condition of the engine obtained by the test, and then various compensation is made according to various factors (such as water temperature, oil temperature, atmospheric pressure, etc.), so as to obtain the best fuel injection amount and fuel injection timing or ignition timing, and then control the output through the actuator.

Circuit control maintenance technology is indeed difficult, you need to have basic knowledge of circuits, automobile-related knowledge, but we are a systematic learning, we first start teaching from the basics, to adapt to the needs of students with zero foundation.

Choosing an auto repair school is very important, related to the student's future career, and family support, when choosing an auto repair school, it is important to consider one aspect: the school's teaching equipment, the teacher's teaching methods, the campus environment, the teaching environment of the training room, the employment after graduation, etc., from the above points can basically judge the quality of an auto repair school.

1. The auto repair industry is in high demand, the job is easy to find, and the working environment is also good.

2. The work and social contact of the auto repair industry are relatively close and keep up with the trend, so the knowledge and thinking will be relatively open, which is also conducive to their own development in the future.

3. Learning auto repair is relatively fast, and it is not very difficult to learn.

4. Now some schools have some skills plus academic policies, but it mainly depends on your own choice, although going to college sounds good, but many college students are unemployed after graduation, it is better to learn the door technology as soon as possible, you can work after graduation, choose the right industry, and the future development space will be very large.

Look at the brand: at least it must be a regular school, with relevant school qualifications, strong funds, and teaching equipment. In fact, private colleges and universities have advantages over public ones, and the curriculum design of private schools is closer to market demand.

Look at the training: learn auto repair technology, the training course is of course important, just have a theory, will not repair the car wash car waxing, which company will want you? Therefore, practical training is very critical, the proportion of practical training courses is higher than that of theoretical courses, but it does not mean that all practical training is good, only the combination of theoretical training can achieve the learning effect.

Look at management: the good or bad of an auto repair school, in addition to seeing whether you can learn technology, but also consider whether you can improve your personal quality, only with good personal quality and exquisite technology, in the work of the society will have long-term development.

According to the learning requirements and pace step by step, you can learn. For example, the engine electronic control system (EECS) is to electronically control the engine ignition, fuel injection, air to fuel ratio, exhaust gas, etc., so that the engine works under the best working conditions, so as to improve the performance of the whole vehicle, save energy, and reduce exhaust emissions.

1 Electronically controlled ignition (ESA).

The electronically controlled ignition device consists of a microprocessor, a sensor and its interface, an actuator, etc. The device calculates and judges according to the engine parameters measured by the sensor, and then adjusts the ignition time, which can make the engine work at the best ignition advance angle under the conditions of different speeds and air intake, so that the engine outputs the maximum power and torque, reduces fuel consumption and emissions, saves fuel and reduces air pollution.

2 Electronically Controlled Fuel Injection (EFI).

Controlled fuel injection devices are gradually replacing mechanical or electromechanical hybrid fuel injection systems due to their superior performance. When the engine is working, the device compares and judges the oil supply control parameters under the best working conditions pre-stored in the memory according to the parameters such as air flow, inlet air temperature, engine speed and working temperature measured by each sensor, and compares and judges the oil supply control parameters under the best working conditions stored in the memory according to the pre-programmed program, and adjusts the oil supply in a timely manner to ensure that the engine always works in the best state, so that the comprehensive performance of the engine is improved under the condition of outputting a certain power.

3 Exhaust Gas Recirculation Control (EGR).

The exhaust gas recirculation control system is currently an effective measure to reduce nitrogen oxide emissions in exhaust gas. The main actuator is a digitally controlled EGR valve, which independently controls the amount of exhaust gas recirculated to the engine.

I believe that the study of automotive electronic control should not only study the theory well, but also go to the field for internship in the third year. Real internship, knowledge of automotive electronic control. In this way, you will quickly grasp this knowledge.

If you want to learn how to learn automotive electrical science well, you must learn some basic skills well. Well, then you can better learn electronic control.

Major: Vehicle Engineering (Vehicle Electronics and Electrical), Bachelor's Degree, 4 years.

Training objectives: This major cultivates application-oriented vehicle electronic and electrical senior technical talents who meet the needs of economic construction and social development, develop morally, intellectually and physically, have a solid theoretical foundation, a wide range of knowledge, and master the basic knowledge of vehicles, electrical control and PLC, power electronics technology, and vehicle electronic and electrical professional technology.

Compulsory courses: automotive structure, automotive electronic control technology, automotive electrical and circuit analysis, automotive electronic control system design, vehicle network system, modern electric vehicle technology, etc.

Career direction: Graduates can be engaged in the design and maintenance of automotive electronic and electrical in the automotive industry, and can also be engaged in product development, engineering design, installation and maintenance in the field of industrial automation.

If there is no automotive foundation, it is recommended to master the basic knowledge before learning the electronic control course, which is easier to understand, and this course is best to learn systematically, so that the judgment of car failure will have a more sense of direction.

Short-term special class - single class of automobile and electrical appliances.

Learning duration: 75 days.

curse content:

1. The use of instruments and equipment such as automobile multimeters, test lights, battery detectors, chargers, etc.;

2. Structure, principle and maintenance of charging, starting, ignition and other systems;

3. Disassembly, testing and maintenance of electrical components such as generators, starters, ignition coils, spark plugs, etc.;

4. The structure and principle of air conditioning, the decomposition and assembly of compressors, and the fluorine filling of air conditioners.

Look at the brand of the school, choosing a good brand of auto repair school is an important factor in choosing a school, the brand is a symbol of quality, representing the comprehensive strength and quality of the auto repair school. Generally speaking, the teaching quality of auto repair vocational schools with excellent brands is relatively high.

1.Learning technology can be considered from your own interests and hobbies, after all, this is different from reading, learning technology to a certain extent determines your future job category, if you have a good technology, then to the degree of good at which to develop, so that the start is fast, the corresponding salary will be a little better. Of course, if you don't have a particularly obvious technique or strength, then develop the technique first.

2.First of all, think about your hobbies, what type of work you like to do, and what skills are required for that job, and then learn and cultivate.

3.Considering the development trend in the next few years or 5 years, we will explore hot industries or new industries, and there will be a shortage of talents in hot industries and new industries in the next few years.

4.Field trips, a detailed understanding of the school's training equipment, training situation, teaching content, campus environment and other aspects of the campus before making a choice.

Learning technology is mainly to get started to operate, a semester down to practice the car can not touch how to learn Brother Ling, but also depends on the proportion of normal class hours of training. Third, look at the quality of teachers, the level of teachers will greatly make you avoid detours. Fourth, look at the service, a good school has employment services, you graduate, the school will recommend employment, you start a business, the school will have entrepreneurial guidance.

Automotive electronic control technology mainly refers to the automotive circuit, such as the automotive electronic control engine. Automotive electronic control chassis, automotive circuit control system, etc.

No matter how complex the automobile circuit is, it is formed by many single circuits in parallel, because each single circuit is relatively simple, and the intermediate links and electrical appliances are connected in series, so there is no need for a deep theoretical foundation, and normal people can learn it.

At the beginning of learning automobile circuits, first know how many electrical appliances are installed in the car, what they are for, and then figure out the intermediate links associated with each electrical appliance. For example, the roof light circuit in the car: the power supply passes through the fuse to one end of the dome light bulb (electrical appliance), and the other end of the bulb is divided into two ways, one is connected to the top light switch, and the other goes to the door switch; The other end of the dome light switch and the door switch are respectively mounted on the iron, so that two states controlled by the dome light switch are formed, and the top light is on when the door is opened, and it can also be controlled after the door is closed.

When you understand each single circuit, you have the conditions to learn the basic principles and working conditions of automotive electrical appliances, learn the correlation between the circuit and the circuit, and analyze the possible faults of the circuit, otherwise it will be very empty and tiring to learn.

If you want to learn automotive circuits well, you must first learn the basics of electrician and electronic technology. Because no matter what kind of circuit it is, its basic principles are inseparable from the most basic knowledge, such as Ohm's law, electronic amplification, control, circuit and other principles. Some people always want to take shortcuts, and that kind of transformation will only draw a scoop according to the gourd, and they will be blind when they encounter difficult problems.

For example, if the turn signal is not lit and there is no basic knowledge, you can only change it from the bulb, switch, and controller one by one until it is normal. If you have basic knowledge, you can basically analyze what part of the fault is from the phenomenon of failure. In particular, some modified line faults can better reflect the level of repair personnel when analyzed.