Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Test site conditions
5.1 Test site
5.2 Road surface condition
5.3 Ambient conditions
6 General requirements
7 Recommended sequence of the tests
7.1 Preparation and static checks and tests
7.2 Basic performance tests - Unladen
7.3 Failure tests - Unladen
7.4 ABS tests - Unladen
7.5 ABS tests - Laden
7.6 Failure tests - Laden
7.7 Basic performance tests - Laden
8 Vehicle preparation
8.1 Documents and basic data
8.2 Braking system condition and bedding
8.3 Adjustment of braking equipment
8.4 Tyre conditions
8.5 Devices and instruments needed for the testing
9 Static tests and checks
9.1 Static braking force and control force vs. line pressure
9.2 Capacity of energy sources
9.3 Service braking system - Response time measurement
9.4 Automatic braking
9.5 Brake failure and defect warning signals
9.6 Tests on vehicles equipped with spring brake actuators
9.7 Additional tests on vehicles equipped with EBS
10 Basic performance tests - Unladen
10.1 Type 0 test (service braking system cold brake
effectiveness, engine disconnected)
10.2 Type 0 test (service braking system cold brake,
engine connected)
10.3 Parking braking system - Hill holding test
10.4 Secondary braking system test
10.5 Wheel locking sequence
11 Failure tests - Unladen
11.1 Service braking system partial failure test
(type 0 test, cold brake effectiveness, engine
disconnected)
11.2 Failed load sensing device test/function test
11.3 Failure of the energy source on vehicles
equipped with EBS
12 ABS tests - Unladen
12.1 ABS failure
12.2 Determination of the peak coefficient of
adhesion on the high adhesion surface
12.3 Determination of adhesion utilization on
high adhesion surface
12.4 Determination of adhesion utilization on low
adhesion surface
12.5 Additional checks
13 ABS tests - Laden
13.1 Additional split adhesion test
13.2 Energy consumption on low adhesion surface
14 Failure tests - Laden
14.1 Service braking system partial failure test
(type 0 test, cold brake effectiveness, engine
disconnected)
14.2 Failed load sensing device test
14.3 Energy source failure test
15 Basic performance tests - Laden
15.1 Parking braking system - Hill holding test
15.2 Parking braking system - Dynamic test
15.3 Wheel locking sequence
15.4 Type 0 test (service braking system cold brake
effectiveness, engine disconnected)
15.5 Type 0 test (service braking system cold brake,
engine connected)
15.6 Warning device test
15.7 Energy storage capacity test
15.8 Type II or type IIA tests (downhill,
endurance braking test)
15.9 Type I test (fade test)
Annex A (normative) Typical braking equipment
Bibliography