Chapter 24 Braking system 同©大学 TONGII UNIVERSTTY Types of Braking System According to the change >The braking force and braking torque can method of the braking force be controlled by the driver (driving braking system must be a gradual braking system) >Gradual braking system >Braking system doesn't have the above- >Non-gradual braking mentioned characteristics (parking braking system system must be a non-gradual braking system. >Classification according to the transformation form of braking energy: mechanical type,hydraulic type pressure type,electromagnetic type. >Classification according to the circuit of driveline:single circuit system double circuit system. >When a circuit of the double circuit system goes wrong,the braking system can still provide braking force.At present,braking system must be a double circuit system
Chapter 24 Braking system Classification according to the circuit of driveline：single circuit system、 double circuit system . The braking force and braking torque can be controlled by the driver（driving braking system must be a gradual braking system） Classification according to the transformation form of braking energy： mechanical type、hydraulic type、pressure type、electromagnetic type. Types of Braking System According to the change method of the braking force Gradual braking system Non-gradual braking system Braking system doesn’t have the abovementioned characteristics（parking braking system must be a non-gradual braking system） When a circuit of the double circuit system goes wrong，the braking system can still provide braking force. At present, braking system must be a double circuit system
Chapter 24 Braking system 窗月桥大学 TONGII UNIVERSTTY 2 Brake friction dise heat air hole brake piston ceramic braking disc structure of ceramic braking disc
Chapter 24 Braking system 2 Brake
Chapter 24 Braking system 同©大学 TONGII UNIVERSTTY Classification of Brake >Friction Brake:Using the braking force generates between the fixing element and the rotating element. >Classified by structural form:Drum Brake Dise Brake. >Drum Brake:the friction pair of drum brake is the rotating drum and the fixing brake shoe or brake band ) Disc Brake:the friction pair of disc brake is the rotating disc and the fixing caliper. >Classified by installation position: Wheel Brake Center Brake. >Wheel Brake can be used for driving brake and parking brake,center brake can only be used for parking brake and retarding brake
Chapter 24 Braking system Classified by structural form: Drum Brake & Disc Brake . Friction Brake：Using the braking force generates between the fixing element and the rotating element. Drum Brake：the friction pair of drum brake is the rotating drum and the fixing brake shoe ( or brake band ). Disc Brake： the friction pair of disc brake is the rotating disc and the fixing caliper. Classification of Brake Classified by installation position: Wheel Brake & Center Brake . Wheel Brake can be used for driving brake and parking brake, center brake can only be used for parking brake and retarding brake
Chapter 24 Braking system 同©大学 TONGII UNIVERSTTY Drum Brake >Drum Brake can be classified as internal expanding tpe external beam type. >The characteristics of internal expanding brake:when one end of brake shoe supported promoting force,t the brake can rotate outside around the other end,pressed on the inner face of the brake drum and then generates a friction torque. >Brake actuation device Fw 20 z8☒☒ >Brake actuation device:exerts a force on the brake shoe to make it rotate
Chapter 24 Braking system Drum Brake Drum Brake can be classified as internal expanding type & external beam type. Brake actuation device The characteristics of internal expanding brake: when one end of brake shoe supported promoting force，the brake can rotate outside around the other end, pressed on the inner face of the brake drum and then generates a friction torque. Brake actuation device：exerts a force on the brake shoe to make it rotate
Chapter 24 Braking system 同©大学 TONGII UNIVERSTTY Drum Brake >Wheel Cylinder Brake:Its brake actuation of brake shoe is a hydraulic brake wheel cylinder; >Cam Brake:Its brake actuation of brake shoe is a cam; >Wedge Brake:Its brake actuation of brake shoe is a wedge. 一A数
Chapter 24 Braking system Wheel Cylinder Brake: Its brake actuation of brake shoe is a hydraulic brake wheel cylinder; Cam Brake: Its brake actuation of brake shoe is a cam; Wedge Brake: Its brake actuation of brake shoe is a wedge. Drum Brake