Parking brake performance test methods for vehicles
1 Scope
This standard specifies the parking brake performance test methods for vehicles.
This standard is applicable to all kinds of vehicles and combination vehicles travelling on the roads in China.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 7258 Technical specifications for safety of power-driven vehicles operating on roads
GB/T 13564 Roller opposite forces type automobile brake tester
GB 21861 Items and methods of motor vehicles safety technology inspection
GB/T 28529 Platform brake tester
GB/T 28948 Commercial vehicle - Front towing attachments
GB 32087 Towing devices for light-duty vehicle
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB 7258 and GB 21861 as well as the following apply.
3.1
parking brake performance
capability of vehicles parking on ramps
3.2
parking ramp
ramp used to test the parking brake performance of vehicles
3.3
the slope of parking ramp
ratio of the vertical height to the horizontal length of the parking ramp, in %
GB/T 35349-2017 The following standards are cited: