1. The role and status of the course
This course is the core course of higher vocational automobile majors in the fourth semester. This course lasts 96 hours, including 48 hours for theoretical courses and 48 hours for practical courses. For Structure and Maintenance of Automobile Electrical Equipment, its pre-courses are Inspection and maintenance of automobile engines, Automotive Electronic Control Principles and Technology Application, and the follow-up courses are Drive Motor and Control Technology, New Energy Vehicle Electronic Control Technology and other professional courses.
This course is in line with the automotive electronic, electrical and air-conditioning comfort technology module in the assessment content of 1+X automotive application and maintenance (including smart new energy vehicles) professional skill level certificate. The course is composed of seven projects, namely basic knowledge of automobile electrical, power supply system maintenance, automobile starting system failure and maintenance, automobile ignition system structure and maintenance, automobile lighting and signal system maintenance, troubleshooting of automobile instrument and alarm system, troubleshooting of of automobile auxiliary electrical equipment.
Through the study of this course, students can master the theoretical knowledge of automotive electrical and electronic control systems, use modern diagnostic and testing equipment to perform fault analysis and diagnosis, component testing and maintenance of automotive electrical systems, and cultivate their social skills and problem-solving skills.
2. Learning objectives
2.1 Ability objectives
Be able to describe the professional terms in courses and industries;
Be able to use the car-specific multimeter and car decoder correctly;
Be able to repair automobile electrical equipment;
Be able to read automobile circuits and detect automobile circuits and their terminals;
Be able to eliminate the faults of common circuits and electrical components;
Be able to put forward reasonable inspection and diagnosis opinions on difficult faults of automotive electrical equipment;
Be able to obtain valuable information for completing the overhaul of automotive circuits and electrical appliances.
2.2 Knowledge objectives
Master the structure and basic working principles of common automotive electrical equipment;
Master the use, maintenance and failure analysis methods of automobile electrical equipment;
Master the ideas and methods of failure analysis of automotive electrical and electronic control systems;
Master the diagnosis and troubleshooting methods of common faults in automotive electrical equipment;
Learn about new products and new technologies of automotive electrical equipment.
2.3 Quality objectives
Have a strong sense of collective honor and teamwork;
Be able to have good communications with colleagues, superiors, and customers;
Have a strong sense of safety and environmental protection awareness;
Have professional ethics of dedication;
Have the professionalism of being proactive, continuous improvement and professional qualities of honesty, hard work and diligence.
3. Course content and class hours
Table 1 Course content and class hours
Project
Task
Contents
Objectives
Class hours
Automobile Basic Appliances and Overhaul
Task 1 How to Use Multimeters for Cars
1. Understanding of the multimeter;
2. How to use the voltage, current and resistance of the multimeter.
1. Be able to correctly select the gear position of the multimeter and measure the electrical components;
2. Be able to read the measurement data correctly;
8
Task 2 Inspection of Automobile Relays
1. The structure and working principle of relays;
2. Measuring method of relay;
3. How to relays of automobiles.
1. To correctly judge the quality of the relay;
2. To use the relay to connect the circuit correctly.
Task 3 How to Use Diagnostic Equipment
1. Be able to use the diagnostic and correction equipment to judge the common faults of the car;
2. Be able to get effective information.
1. To know the common diagnostic equipment;
2. Be able to use common diagnostic equipment.
Task 4 How to Read Circuit Diagrams
1. Be able to read car circuit diagrams correctly;
2. Familiar with common circuit graphic signs.
1. To correctly identify the car circuit;
2. Be able to judge common car faults with car circuits.
Troubles and Maintenance of Automobile Power System
Task 1 The structure and principle of the battery
1. The function and composition of common batteries;
2. The working principle of common batteries.
1. Be able to correctly explain the function and composition of the battery;
2. Master the working principle of the battery.
12
Task 2 Troubleshooting for insufficient battery capacity
Troubleshoot the battery without electricity or insufficient electricity.
1. Be able to judge the phenomenon that the battery has no electricity;
2. Troubleshooting for insufficient battery power.
Task 3 The structure and principle of alternator
1. The function and composition of common generators;
2. The working principle of common generators.
1. Be able to correctly explain the function and composition of the generator;
2. Master the working principle of the generator.
Task 4 Inspection and maintenance of alternator
1. Inspection and maintenance methods for structural components of alternator;
2. Maintenance of common generator faults.
1. Be able to correctly measure the generator structure;
2. Be able to inspect the generator failure.
Troubles and Maintenance of automobile starting system
Task 1 The working principle of the starter
1. The structure of the starter;
2. The working principle of the starter.
1. Be able to correctly explain the composition and function of the starter;
2. Be able to correctly explain the working principle of the starter.
12
Task 2 The disassembly and assembly of the starter
1. Selection of disassembly tools;
2. The (dis)assembly steps and precautions of the starter.
1. Be able to correctly choose disassembly and assembly tools;
2. Follow the correct steps to disassemble and assemble the starter.
Task 3 The detection of the starter
1. The detection method of the structure of the starter;
1. Maintenance of common mechanical failures of the starter.
1. Be able to correctly detect the quality of the starter’s structural parts;
2. Troubleshooting of the starter.
Task 4 Inspection and maintenance of the starting system
1. Reading of the working circuit diagram of the starter.
2. Maintenance ideas for common failures of the starter.
1. Correctly read the circuit diagram of the starter.
2. Maintenance of common failures of the starter.
Structure and Maintenance of Automobile Ignition System
Task 1 Overview of Automobile Ignition System
1. The development of the ignition system;
2. The composition and structure of the ignition system.
1. Correctly explain the composition and structure of the ignition system.
10
Task 2 The control principle of automobile ignition system
1. The principle of microcomputer-controlled ignition system;
2. Circuit analysis.
1. Master the failure principle of the ignition system;
2. Be able to analyze the ignition circuit.
Task 3 Troubleshooting of Automobile Ignition System
1. Maintenance of common ignition system failures.
Common troubleshooting ideas for ignition systems.
Troubleshooting of Automobile Lighting and Signal System
Task 1 The Composition and Principle of the Headlights
1. The function and composition of common lights;
2. Circuit reading of common lights;
3. Troubleshooting of common lights.
1. Familiar with common car lighting operation methods;
2. Be able to correctly read the lighting circuit;
3. Common lighting troubleshooting ideas.
16
Task 2 Troubleshooting of Headlights
Task 3 The Composition and Principle of little lights
Task 4 Troubleshooting of little lights
Task 5 The Composition and Principle of turn signals and hazard warning lights
Task 5 Troubleshooting of turn signals and hazard warning lights
Task 6
The Composition and Principle of brake lights
Task 7
Troubleshooting of brake lights
Task 8 The Composition and Principle of automobile fog lights
Task 9 Troubleshooting of automobile fog lights
Maintenance of Automobile Information and Communication System
Task 1 To know automobile instruments and alarm
Understanding of automobile instruments and warning indicators.
Correctly identify automobile instruments and warning indicators.
10
Task 2 Troubleshooting of oil pressure gauge
1. The working principle of oil pressure gauge and fuel pressure gauge;
2. Maintenance ideas of oil pressure gauge and fuel pressure gauge.
1. Can correctly explain the working principle of the oil pressure gauge and fuel pressure gauge;
2. Maintenance ideas of oil pressure gauge and fuel pressure gauge
Task 3 Troubleshooting of fuel gauge
Task 4 Working principle of reversing radar
1. The role and composition of the reversing radar;
2. The working principle of reversing radar;
3. Troubleshooting of reversing radar.
1. Know the role of reversing radar;
2. Be able to explain the working principle of the reversing radar;
3. The troubleshooting ideas of the reversing radar.
Task 5 Troubleshooting of reversing radar
Troubleshooting of automobile auxiliary electrical equipment
Task 1
The structure and principle of the window wiper
1. The composition and working principle of automobile auxiliary electrical equipment;
2. Circuit reading of automobile auxiliary electrical equipment;
3. Troubleshooting of automobile auxiliary electrical equipment.
1. Be able to correctly explain the structure and working principle of automobile auxiliary electrical equipment;
2. Be able to read and understand the circuit diagrams of automobile auxiliary electrical equipment;
3. Have a clear idea of troubleshooting.
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Task 2
Troubleshooting of abnormal functioning wiper
Task 3 The structure and principle of power windows
Task 4 Troubleshooting of power windows
Task 5
Understanding of electronically controlled door lock
Task 6 Troubleshooting of electronically controlled door lock system
Task 7 The structure and principle of rearview mirror
Task 7 Troubleshooting of rearview mirror
Task 8
The structure and principle of the cruise control system
Task 9
Troubleshooting of the cruise control system
Task 10
The structure and principle of anti-theft system
Task 11
Troubleshooting of anti-theft system
4. Teaching mode and methods
4.1 Teaching mode
Structure and Maintenance of Automobile Electrical Equipment is a practical course focusing on cultivating students’ practical and theoretical skills. Based on national teaching standards, curriculum standards, and professional certificate requirements, the teaching of this course is professional-training-targeted and student-centered, focusing on the application and guiding role of professional theoretical knowledge, highlighting the application of learning and integrating theory with practice.
With an integrated teaching model of theory and practice, the course is project-oriented and task-driven. It also focuses on the typical work tasks of automobile electromechanical maintenance workers. With the help of on-campus and off-campus training bases, teachers teach with demonstration, and students listen and practice, so that theoretical teaching and practical teaching can be organically integrated.
At the same time, this course combines professional knowledge with ideological and political elements, including value guidance, cultural quality, innovative awareness, craftsmanship and other ideological and political elements. Through the integration of various correct concepts in automobile manufacturing, repair and maintenance into the teaching, the correct ideological and political values are passed on to the students subtly.
4.2 Teaching methods
4.2.1 multimedia teaching
Based on structure and working principle of automobile electrical equipment, this course makes multimedia courseware and uses relevant videos to make the content easy to understand. When teaching the structure, function and working principle of electrical equipment, professional teachers make a large number of PPT and videos. The visual materials make it easier for students to grasp the difficult knowledge.
4..2.2 on-site teaching
On-site teaching has realized the transfer of teaching places. As a professional course with high practical ability requirements, this course moves the teaching classroom to the practical training site, adopts the practical training scene consistent with the working environment, and integrates learning and practicing, so that the theoretical knowledge is deepened and the theory and practice are organically combined. The lecturer utilizes typical “cases” suitable for teaching from the actual work of car maintenance, which truly reflects the combination of theory and practice, improves students’ cognitive ability, makes the content easy to understand and to remember, and trains students to comprehensively use theoretical and practical knowledge.
4.2.3 project teaching
According to the special skills required for students’ employment, the course is divided into seven teaching projects that integrate theoretical knowledge and practical skills. Every time students finish a project, they can basically master a specific skill. With the integrated teaching method of theory and practice, the teacher teaches at the training site while the students practice at the same time.
5. Teaching materials and resources
5.1 teaching materials
[1] Structure and Maintenance of Automobile Electrical Equipment, Chongqing University Press, Qu Xian, 2019.
[2] Automotive Electrical Appliances and Project Training, Xidian University Press, Pan Zhouguang, 2020.
[3] Integrated Course of Principles and Maintenance of Automobile Electrical Equipment, 2nd Edition, Machinery Industry Press, Yang Hongqing & Chen Xiao, 2019.
[4] Automotive Electrical Appliance Structure and Maintenance (Second Edition), People’s Posts and Telecom Press, Wang Aiguo, Gao Guanghui, 2017
5.2 Online resources
Chongqing online open course platform for colleges and universities—construction and maintenance of automobile electrical equipment
