Auto Upkeep Basic Car Care, Maintenance, and Repair (2nd Edition) Chapter 1 - Introduction and How Cars Wor Auto Upkeep Basic Car Care, Maintenance, and Repair (2nd Edition) Chapter 15 Braking System Chapter 15 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Chapter 1 - Introduction and How Cars Wor Fuel for Thought How are disc and drum brakes different? How do antilock brakes work? How do you know when brake pads need replacing? Chapter 15 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

© 2007 Rolling Hills Publishing www.AutoUpkeep.com Objectives Upon completion of this chapter and activities, you will be able to: Define the purpose and principles of the braking system. Identify the different types of brakes and their components. Identify brake fluid properties. Discuss the advantage of antilock brakes. Explain how the parking brake works. Safely perform basic inspections on the braking system. Chapter 15 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Braking System Purpose The braking system is designed to decrease the speed of a vehicle. Chapter 15 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

© 2007 Rolling Hills Publishing www.AutoUpkeep.com Types of Brakes Disc brakes Drum brakes Regenerative braking Chapter 15 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Braking System Components Brake pedal Master cylinder Brake lines Chapter 15 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Braking System Components Disc brakes Chapter 15 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Braking System Components Drum brakes Chapter 15 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

© 2007 Rolling Hills Publishing www.AutoUpkeep.com Brake Fluid Links the braking components Fights corrosion, lubricates moving parts, and protects metal, plastic, and rubber components Most common type DOT 3, but always check owner’s manual or cap Chapter 15 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

© 2007 Rolling Hills Publishing www.AutoUpkeep.com Antilock Brakes An antilock braking system (ABS) minimizes wheel lockup (skidding) by using sensors at each wheel (or in the differential) to monitor wheel speed, a hydraulic unit to regulate brake pressure, and a computer/controller to command the system. Chapter 15 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

Electronic Stability Control Electronic stability control (ESC) has been added to many vehicles to help drivers maintain control during unstable situations such as attempting to avoid a crash or during unfavorable weather conditions. Chapter 15 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

© 2007 Rolling Hills Publishing www.AutoUpkeep.com Parking Brakes A hand lever in the center of the console or small foot pedal on the far left side of the driver’s foot controls engages the cable. The mechanical cable allows the systems to work independently of each other. Chapter 15 © 2007 Rolling Hills Publishing www.AutoUpkeep.com

© 2007 Rolling Hills Publishing www.AutoUpkeep.com Summary Brake systems use friction to slow and stop a vehicle. The two types of brake systems used today are disc and drum brakes. Disc brakes use rotors, pads, and calipers. Drum brakes use drums, shoes, and wheel cylinders. Antilock brakes assist in preventing wheel lockup and provide the operator with maximum directional control. Chapter 15 © 2007 Rolling Hills Publishing www.AutoUpkeep.com