【摘要】 汽车在山路下坡行驶中，使用缓行器可以减轻制动蹄片磨损，避免热衰退引起的制动失效，保证安全行驶，并可提高行车速度，减轻驾驶员疲劳。缓行器在山路中的作用被人们普遍认同。以装用缓行器的中型客车为实例，以缓行器在平路中的应用为着眼点，研究了利用缓行器对高速行驶车辆的距离控制问题。更多还原

【Abstract】 When the retarder is used in automobiles which are driving in mountain downhill road, the wear of brake shoe facing can be reduced, the braking failure resulted from heat fade can be avoided, the driving safety can be guaranteed, and the driver may relax. Based on the medium bus using retarder and the application in flat road, the distance control of vehicle at high speed using retarder is studied.更多还原