ELECTRONIC BRAKING SYSTEMS MOTOR VEHICLE
EBS ADVANTAGES 1. Shorter braking distance Reduction of response and build-up time Quicker and more precise brake pressure control Electro pneumatic control circuit Shorter pneumatic lines Larger cross sections of valves 10 bar constant pressure system by new APU (Air Processing Unit) Use of disc brakes (drum brakes also possible)
EBS ADVANTAGES 2. Longer service life of wheel brakes Dependent from wear brake apportioning in towing vehicle during adapting braking Dependent from adhesion brake apportioning in towing vehicle during higher decelerations Better participation of trailer during braking mechanics Involvement of available sustained-action brakes (engine brake, continuous throttle, retarder)
EBS ADVANTAGES 3. Improved actuation Pedal feeling similar to cars Reduction of response and build-up time Deceleration control by providing travel at brake pedal clearly improves ability to graduate braking force 4. Better participation of trailer Quicker trailer response through "pressure shot" to coupling head for control (at trailers without EBS) Reduction of response and build-up time Quicker and more precise brake pressure control through electro pneumatic control Automatic brake apportioning to tractor and trailer within EC brake band At trailers with EBS optimized brake apportioning through return information of wheel speeds of the trailer
EBS ADVANTAGES 5. Extended diagnosis and service possibilities Self tests when starting up, driving and braking Component check: circuit path checked for interruption, short-circuit after battery positive and ground Measurement readings given via on-board display or Diagnostic Interface via PC diagnosis Fault memory Sporadic and current malfunctions can be called up Reactions checked for plausibility: permuted cables, pressure input and effect 6. Feasible additional options: Halt brake Rollback lock ESC
Knorr EBS, Motor vehicle
Knorr EBS, Motor vehicle
Knorr EBS, Brake signal transmitter
Knorr EBS, Axle modulator Módulo eje trasero. 1ª G Módulo eje trasero. 2ª G Módulo eje delantero 1ª G
Knorr EBS, Axle modulator ESQUEMA ELECTRONEUMÁTICO 1ª Generación
Knorr EBS, Trailer control valve
Truck EBS Components Electronic control unit (ECU) Brake signal transmitter
Truck EBS components EBS relay valve Redundant valve
Truck EBS components EBS modulator ABS modulator
Truck EBS components EBS trailer control valve
Truck EBS components SPEED SENSOR & POLE WHEEL How does it work? Speed sensor types & toothed wheels Radials Axials Sizes Location
Truck EBS System
Braking signal transmitter Component Location Partial brake Maximum brake Electrical failure
Braking Central Unit Component Location Partial brake Maximum brake Electrical failure
EBS proportional relay valve Component Location EBS: working mode EBS failure
EBS axle modulator Component Location Partial brake Maximum brake Electrical failure
EBS Modulator 2nd generation Component Location Partial brake Maximum brake Electrical failure
Back-up Valve Component Location EBS working mode Pneumatic back-up
EBS Trailer control valve Component Location Parking brake EBS working mode Electrical failure
EBS: Components schemes EBS Tractor 4x2 without back-up EBS Tractor 4x2 with back-up EBS Truck 4x2 with back-up EBS Truck 6x2 with back-up EBS 2ª generation without back-up EBS 2ª generation with back-up
Working modes EBS with intermediate load EBS with maximum load Parking brake Electrical failure Braking with electrical failure in front axle Braking with electrical failure in rear axle
Electrical Schemes EBS 1B: Truck DAF 6x2 EBS 1B: Truck IVECO 6x2 EBS 1B: Bus NEOPLAN 3 ejes EPB 1B: Truck Mercedes-Benz 6x2 EPB 1B: Truck Mercedes-Benz 4x2 EBS 1C: Truck DAF 4x2 EBS 2A: Truck IVECO 4x2