自 EQ140—1汽车投产以来,用户普遍反映:采用双回路制动系统以后,制动性能有所改善,如制动时进、排气时间加快、制动距离短等。但是,有部分用户反映,他们的汽车有后制动“过热”的现象,即后制动鼓的温度较高(指后制动器不正常的发热),虽经保修,但没有解决问题。据此,我们在湖南长沙、常德等地区进行了调查, Since the EQ140-1 was put into production, the user generally reflected: After adopting the double circuit braking system, the braking performance has been improved, such as braking forward and exhausting time and short braking distance. However, some users reported that their cars had a “overheating” after-braking, ie, the high temperature of the rear brake drum (which means abnormal rear brake heat) did not solve the problem despite the warranty. Accordingly, we conducted a survey in Changsha, Hunan, Changde and other regions,