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  • Количество слайдов: 45

© Goodheart-Willcox Co. , Inc. 1 Permission granted to reproduce for educational use only. © Goodheart-Willcox Co. , Inc. 1 Permission granted to reproduce for educational use only.

Chapter 1 Overview of Electrical/Electronic Systems © Goodheart-Willcox Co. , Inc. 2 Permission granted Chapter 1 Overview of Electrical/Electronic Systems © Goodheart-Willcox Co. , Inc. 2 Permission granted to reproduce for educational use only.

Objectives Give examples of electrical and electronic devices. Summarize why electric and electronic devices Objectives Give examples of electrical and electronic devices. Summarize why electric and electronic devices have replaced many mechanical devices in the automobile. Explain how modern automotive systems interact. Recall the basic components of a computer network and their function. © Goodheart-Willcox Co. , Inc. 3 Permission granted to reproduce for educational use only.

Objectives Identify the major parts of electrical/ electronic systems. Explain the basic operation of Objectives Identify the major parts of electrical/ electronic systems. Explain the basic operation of major electrical/electronic systems of an automobile. Recall the typical locations of electric/electronic components. © Goodheart-Willcox Co. , Inc. 4 Permission granted to reproduce for educational use only.

Electric vs. Electronic Electric device Uses electricity to do work © Goodheart-Willcox Co. , Electric vs. Electronic Electric device Uses electricity to do work © Goodheart-Willcox Co. , Inc. 5 Permission granted to reproduce for educational use only.

Electric vs. Electronic (Cont. ) Electronic device Made of semiconductor material Alters flow of Electric vs. Electronic (Cont. ) Electronic device Made of semiconductor material Alters flow of electricity © Goodheart-Willcox Co. , Inc. 6 Permission granted to reproduce for educational use only.

Advantages of Electrical/Electronic Devices Better efficiency Faster More accurate Higher fuel economy and performance Advantages of Electrical/Electronic Devices Better efficiency Faster More accurate Higher fuel economy and performance Fewer toxic emissions © Goodheart-Willcox Co. , Inc. 7 Permission granted to reproduce for educational use only.

System Interaction All major systems work together Faults may be difficult to trace Training System Interaction All major systems work together Faults may be difficult to trace Training is absolutely necessary © Goodheart-Willcox Co. , Inc. 8 Permission granted to reproduce for educational use only.

Review What are electronic components composed of? Answer: semiconductor material © Goodheart-Willcox Co. , Review What are electronic components composed of? Answer: semiconductor material © Goodheart-Willcox Co. , Inc. 9 Permission granted to reproduce for educational use only.

Review Which of the following is an advantage of electronic components vs. mechanical components? Review Which of the following is an advantage of electronic components vs. mechanical components? A. They have more moving parts. B. They are more accurate. C. They require no electricity. D. They need no maintenance. Answer: B. They are more accurate. © Goodheart-Willcox Co. , Inc. 10 Permission granted to reproduce for educational use only.

Computer Systems Sensors Computer Actuators Wiring harness © Goodheart-Willcox Co. , Inc. 11 Permission Computer Systems Sensors Computer Actuators Wiring harness © Goodheart-Willcox Co. , Inc. 11 Permission granted to reproduce for educational use only.

Computer Systems (Cont. ) © Goodheart-Willcox Co. , Inc. 12 Permission granted to reproduce Computer Systems (Cont. ) © Goodheart-Willcox Co. , Inc. 12 Permission granted to reproduce for educational use only.

Computer Systems (Cont. ) Sensors detect Movement Temperature changes Pressure variance Chemical content Part Computer Systems (Cont. ) Sensors detect Movement Temperature changes Pressure variance Chemical content Part location Rotation speed Sounds Other conditions (Napa Auto Parts) © Goodheart-Willcox Co. , Inc. 13 Permission granted to reproduce for educational use only.

Computer Systems (Cont. ) Computer Complex set of electronic circuits Uses sensor inputs Produces Computer Systems (Cont. ) Computer Complex set of electronic circuits Uses sensor inputs Produces programmed outputs (Napa Auto Parts) © Goodheart-Willcox Co. , Inc. 14 Permission granted to reproduce for educational use only.

Computer Systems (Cont. ) Actuators Receive signals from computer Produce movement to alter system Computer Systems (Cont. ) Actuators Receive signals from computer Produce movement to alter system operation (Napa Auto Parts) © Goodheart-Willcox Co. , Inc. 15 Permission granted to reproduce for educational use only.

Computer Systems (Cont. ) On-board diagnostics Analyze circuit operation Display warning or malfunction indicator Computer Systems (Cont. ) On-board diagnostics Analyze circuit operation Display warning or malfunction indicator Store trouble codes Scan tool retrieves codes © Goodheart-Willcox Co. , Inc. 16 Permission granted to reproduce for educational use only.

Review The components of an automotive computer system include the _____, computer, actuators, and Review The components of an automotive computer system include the _____, computer, actuators, and wiring harness. Answer: sensors © Goodheart-Willcox Co. , Inc. 17 Permission granted to reproduce for educational use only.

Review What is the function of the main computer in an automotive computer system? Review What is the function of the main computer in an automotive computer system? Answer: It analyzes inputs from the sensors and sends instructions to the actuators. © Goodheart-Willcox Co. , Inc. 18 Permission granted to reproduce for educational use only.

Starting System Components Ignition switch Starter solenoid Starting motor © Goodheart-Willcox Co. , Inc. Starting System Components Ignition switch Starter solenoid Starting motor © Goodheart-Willcox Co. , Inc. 19 Permission granted to reproduce for educational use only.

Starting System (Cont. ) © Goodheart-Willcox Co. , Inc. 20 Permission granted to reproduce Starting System (Cont. ) © Goodheart-Willcox Co. , Inc. 20 Permission granted to reproduce for educational use only.

Charging System Components Alternator (generator) Voltage regulator © Goodheart-Willcox Co. , Inc. 21 Permission Charging System Components Alternator (generator) Voltage regulator © Goodheart-Willcox Co. , Inc. 21 Permission granted to reproduce for educational use only.

Charging System (Cont. ) © Goodheart-Willcox Co. , Inc. 22 Permission granted to reproduce Charging System (Cont. ) © Goodheart-Willcox Co. , Inc. 22 Permission granted to reproduce for educational use only.

Ignition System Purpose Ignites air-fuel mixture Monitors engine speed and other variables Components Ignition Ignition System Purpose Ignites air-fuel mixture Monitors engine speed and other variables Components Ignition switch Ignition coil Spark plugs © Goodheart-Willcox Co. , Inc. 23 Permission granted to reproduce for educational use only.

Ignition System (Cont. ) © Goodheart-Willcox Co. , Inc. 24 Permission granted to reproduce Ignition System (Cont. ) © Goodheart-Willcox Co. , Inc. 24 Permission granted to reproduce for educational use only.

Fuel System Electronic fuel injection Used in all late-model vehicles Injector pulse width controls Fuel System Electronic fuel injection Used in all late-model vehicles Injector pulse width controls fuel to engine Almost instantaneous response to sensor input © Goodheart-Willcox Co. , Inc. 25 Permission granted to reproduce for educational use only.

Fuel System (Cont. ) Electronic Fuel Injection © Goodheart-Willcox Co. , Inc. 26 Permission Fuel System (Cont. ) Electronic Fuel Injection © Goodheart-Willcox Co. , Inc. 26 Permission granted to reproduce for educational use only.

Lighting System Provides illumination for night driving Includes switches to control bulb operation Future Lighting System Provides illumination for night driving Includes switches to control bulb operation Future systems Fiber optics Multiplexing © Goodheart-Willcox Co. , Inc. 27 Permission granted to reproduce for educational use only.

Lighting System (Cont. ) © Goodheart-Willcox Co. , Inc. 28 Permission granted to reproduce Lighting System (Cont. ) © Goodheart-Willcox Co. , Inc. 28 Permission granted to reproduce for educational use only.

Instrumentation Systems Navigation system Displays road map Provides vehicle location and direction Driver information Instrumentation Systems Navigation system Displays road map Provides vehicle location and direction Driver information system Informs driver of vehicle conditions Some use alphanumeric code Climate control system © Goodheart-Willcox Co. , Inc. 29 Permission granted to reproduce for educational use only.

Wiper/Washer System Primarily electrical Small DC motor operates wipers Electric pump in washer fluid Wiper/Washer System Primarily electrical Small DC motor operates wipers Electric pump in washer fluid reservoir © Goodheart-Willcox Co. , Inc. 30 Permission granted to reproduce for educational use only.

Horn System Switch on steering wheel Relay sends current to horn © Goodheart-Willcox Co. Horn System Switch on steering wheel Relay sends current to horn © Goodheart-Willcox Co. , Inc. 31 Permission granted to reproduce for educational use only.

Horn System (Cont. ) © Goodheart-Willcox Co. , Inc. 32 Permission granted to reproduce Horn System (Cont. ) © Goodheart-Willcox Co. , Inc. 32 Permission granted to reproduce for educational use only.

Seat, Window, Lock, and Sound Systems Power seat system Power window system Power lock Seat, Window, Lock, and Sound Systems Power seat system Power window system Power lock system Sound system © Goodheart-Willcox Co. , Inc. 33 Permission granted to reproduce for educational use only.

Seat, Window, Lock, and Sound Systems (Cont. ) Power Lock System © Goodheart-Willcox Co. Seat, Window, Lock, and Sound Systems (Cont. ) Power Lock System © Goodheart-Willcox Co. , Inc. 34 Permission granted to reproduce for educational use only.

Seat, Window, Lock, and Sound Systems (Cont. ) Sound System © Goodheart-Willcox Co. , Seat, Window, Lock, and Sound Systems (Cont. ) Sound System © Goodheart-Willcox Co. , Inc. 35 Permission granted to reproduce for educational use only.

Restraint System Protects occupants during collision Deploys when system detects rapid vehicle deceleration © Restraint System Protects occupants during collision Deploys when system detects rapid vehicle deceleration © Goodheart-Willcox Co. , Inc. 36 Permission granted to reproduce for educational use only.

Restraint System (Cont. ) © Goodheart-Willcox Co. , Inc. 37 Permission granted to reproduce Restraint System (Cont. ) © Goodheart-Willcox Co. , Inc. 37 Permission granted to reproduce for educational use only.

Suspension System Stability control system controls shock absorber stiffness Active suspension system makes wheels Suspension System Stability control system controls shock absorber stiffness Active suspension system makes wheels follow road surface © Goodheart-Willcox Co. , Inc. 38 Permission granted to reproduce for educational use only.

Suspension System (Cont. ) Computer-Controlled Suspension System (Toyota) © Goodheart-Willcox Co. , Inc. 39 Suspension System (Cont. ) Computer-Controlled Suspension System (Toyota) © Goodheart-Willcox Co. , Inc. 39 Permission granted to reproduce for educational use only.

Brake System Anti-lock brake system maintains Directional stability Steerability © Goodheart-Willcox Co. , Inc. Brake System Anti-lock brake system maintains Directional stability Steerability © Goodheart-Willcox Co. , Inc. 40 Permission granted to reproduce for educational use only.

Brake System (Cont. ) Anti-Lock Brake System (Mercedes Benz) © Goodheart-Willcox Co. , Inc. Brake System (Cont. ) Anti-Lock Brake System (Mercedes Benz) © Goodheart-Willcox Co. , Inc. 41 Permission granted to reproduce for educational use only.

Traction Control System Prevents slippage on slick pavement Applies brake to wheels individually © Traction Control System Prevents slippage on slick pavement Applies brake to wheels individually © Goodheart-Willcox Co. , Inc. 42 Permission granted to reproduce for educational use only.

Review Which automotive system produces the high voltage that operates a vehicle’s spark plugs? Review Which automotive system produces the high voltage that operates a vehicle’s spark plugs? Answer: ignition system © Goodheart-Willcox Co. , Inc. 43 Permission granted to reproduce for educational use only.

Review What is the purpose of a stability control system? Answer: It controls shock Review What is the purpose of a stability control system? Answer: It controls shock absorber stiffness. © Goodheart-Willcox Co. , Inc. 44 Permission granted to reproduce for educational use only.

Review What are the principal components in an anti-lock brake system? Answer: wheel speed Review What are the principal components in an anti-lock brake system? Answer: wheel speed sensors, computer, hydraulic actuator © Goodheart-Willcox Co. , Inc. 45 Permission granted to reproduce for educational use only.