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Electrical System of Vehicles

Course developer

Prior knowledge

ETeh2015, Electrical Engineering and Electronics

MašZ3027, Mechatronics I

MašZ3028, Mechatronics II

Course abstract

The aim of the study course is to acquaint students with the electric power supply and voltage regulation of car electrical network, motor start-up process and equipment, ignition system, lighting and alarm system regulations and circuitry, automotive systems control and electronic control.

Learning outcomes and their assessment

1. Knowledge - electrical engineering processes in auto electrical equipment, construction of automotive electrical equipment and systems, operating principles, regulations and requirements, possibility to detect defects and perform repairs - tests, practical works;
2. Skills - to read electrical circuits, navigate the scheme, find defects and remove them - practical works;
3. Competence - to evaluate electrical and electronics working modes, to understand what is happening and where to look for defects - practical works, tests.

Course Content(Calendar)

1. General characteristics of car electrical equipment. Theoretical bases of electrical engineering (Lecture - 2h).
2. Electrotechnical fundamentals of electrical equipment: Elements of electrical circuit, parameters, basic relationships. Measurement of electrical quantities (Lecture - 1h, Practical work - 1h).
3. Electronic fundamentals of electrical equipment. Electronic components, electronic circuits. Types of Signals. Electronic component test (Lecture - 1h, Practical work - 1h).
4. Electric power network. Electrical circuits of electrical equipment, their types, designations. Reading diagrams (Lecture - 1h, Practical work - 1h).
1. Test - Electrotechnical Basics.
5. Power supply system. Battery. Battery, principle of operation, operation, connections, control of technical condition. Battery charging (Lecture - 1h, Practical work - 1h).
6. Generator, its components. Principles of voltage regulation. Voltage regulator (Lecture - 1h, Practical work - 1h).
7. Engine starting devices, circuit diagrams, starter test, starting aids. Glow plug operation research (Lecture - 1h, Practical work - 1h).
2. Test - Power supply system.
8. Ignition system. Classic ignition system (Lecture - 1h, Practical work - 1h).
9. Characteristics, types, construction, operation of electronic contactless ignition system (Lecture - 2h).
10. Characteristics, parameters, operation of digital ignition system. (Lecture - 2h).
11. Engine management. Electronic fuel metering and injection, air quantity meters. Sensor research (Lecture - 1h, Practical work - 1h).
12. Control of the combustion process and emissions of the fuel (Lecture - 2h).
3. Test - Engine management.
13. Information and control system, tell-tales and indicators, signal types, measuring instruments and signaling devices (Lecture - 2h).
14. Light and sound alarms, wipers and washers (Lecture - 2h).
15. Lighting system, circuit diagrams, optical elements, their types and operation (Lecture - 2h).
4. Test - Lighting and signaling devices.
16. Electronic vehicle control systems, automatic gearbox, suspension. Speed limiter (Lecture - 2h).

Requirements for awarding credit points

Test. All practical works have been worked out, independent work has been developed and defended, tests have been successfully written.

Description of the organization and tasks of students’ independent work

Pre-test homework (control type - test):
1. Compare calculated results of the electrical circuit to measurements and appreciate;
2. Check if the power supply system works correctly in the study mate vehicles;
3. To find out which engine management systems are used in the study mate vehicles;
4. To get acquainted with lighting and signaling devices of their vehicles.

At the end of the course, one should defend the independent work, which examines the electric scheme of a particular motor vehicle, amount of independent work 48h.

Criteria for Evaluating Learning Outcomes

Quality of work performance. Understanding what you have done. Ability to logically justify processes and explain the causes of errors. Ability to discuss what you have learned.

Compulsory reading

1. Galiņš A. Spēkratu elektroiekārtas. Jelgava: LLU, 2008. 298 lpp.
2. Galiņš A. Spēkratu elektroiekārtas: Laboratorijas darbu uzdevumi, to izpildes metodika un palīgmateriāli. Jelgava: LLU, 2008. 40 lpp.
3. Automotive Handbook. 4th Edition. Robert Bosch GmbH, 1996. 892 p.

4. Automotive Electrics Automotive Electronics. Plochingen: Robert Bosch GmbH, 2006. 503 p.

Further reading

1. Чижиков Ю. П., Акимов С. В. Электрооборудование автомобилей: Учебник для ВУЗов. Москва: За рулем, 2005. 336 c.

2. Galiņš A. Elektrozinību teorētiskie pamati. Elektrisko ķēžu aprēķini./ Mācību metodiskais līdzeklis. Jelgava: LLU, 2008. 120 lpp.

Notes

Compulsory course IITF Academic Bachelor Study Program in Agricultural Engineering Road Transport Subprogram.