PROCEDURE FOR TESTING BRAKES ON TRAILERS
| 项目名称： | PROCEDURE FOR TESTING BRAKES ON TRAILERS |
| 摘要： | THE OBJECT IS TO WORK OUT A PROCEDURE FOR TESTING BRAKES ON TRAILERS. IN NATIONAL TEST PROCEDURES THE TRAILER ONLY IS BRAKED WHILE IT IS BEING PULLED, AND THE BRAKING EFFICIENCY IS CALCULATED FROM THIS. THIS PROCEDURE IS ADEQUATE AS LONG AS THE BRAKING FORCES ARE UNCONTROLLED OR STATICALLY CONTROLLED. NOWADAYS HOWEVER, THERE IS INCREASING DYNAMIC CONTROL, PARTICULARLY IN ORDER TO MEET EEC RECOMMENDATION 75/524/EWG. ACCORDING TO INTERNATIONAL SPECIFICATIONS, HEAT FADING IS TESTED IN VEHICLES BY MEANS OF REPEATED BRAKING MANOEUVRES, AND IN TRAILERS BY MEANS OF CONTINUOUS BRAKING. THE RESULT IS THE DEVELOPMENT OF DIFFERENT BRAKE LININGS FOR BOTH TYPES OF VEHICLE, AND THIS CAN CAUSE UNSATISFACTORY BRAKING DURING THE OPERATION OF THE TRACTOR-TRAILER COMBINATION. THE PLAN OF WORK IS (1) THEORETICAL STUDIES OF PHYSICAL RELATIONS; (2) SELECTION OF MAGNITUDES WHICH APPEAR SUITABLE FOR TEST PROCEDURES; (3) STATISTICAL CONSIDERATIONS OF POSSIBLE ERRORS; (4) DETERMINATION OF THE BEST PROCEDURE FOR TESTING BRAKING AND HEAT FADE; (5) BRAKING TESTS WITH DIFFERENT TRAILERS. |
| 状态： | Active |
| 资助组织： | Bundesanstalt für Straßenwesen (BASt) |
| 项目负责人： | ROTHMANN, W；HOFFMANN, H |
| 执行机构： | RHEINISCH-WESTFAELISCHER TECHNISCHER UEBERWACHUNGS-VEREIN E.V., FORSCHUNGSSTELLE FUER DIE KRAFTFAHRZEUGPRUEFUNG (ORGANIZATION FOR THE INSPECTION OF VEHICLES AND DRIVERS, ESSEN) |
| 开始时间： | 19770803 |
| 预计完成日期： | 19780430 |
| 主题领域： | Research；Vehicles and Equipment；I91: Vehicle Design and Safety；I95: Vehicle Inspection |
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