客车发动机制动与缓行器联合作用的制动能力

Braking ability of engine brake and retarder brake when bus downhill

针对发动机制动的制动能力不足的问题,提出了发动机制动与缓行器联合作用的持续制动方式,采用道路试验和理论分析的方法对客车下坡行驶时它们联合作用的下坡能力进行了研究。试验及分析结果表明,采用联合作用的持续制动方式可以满足客车在各种坡度的坡道上下坡稳定行驶的制动要求,并且车速基本在正常行驶的速度范围内。这种方法可以有效地减少汽车连续下坡行驶时由于主制动器过热而失去制动效能造成的交通事故。

When bus driving on downhill road,its engine has no enough stopping power.This paper put forward a continuous braking mode that combined the engine braking with retarder braking. The braking ability of this method was tested and analyzed.The results show that this braking method can make bus drive on various slope at safety speed.It can prevent traffic accidents from the main braker overheat.