公共汽车电路是从载重汽车(以下简称“卡车”)电路演变而来的,应该说电路的基本结构是与卡车一样。这是因为目前公共汽车都是用卡车的底盘改装的,未形成独立的公共汽车底盘系统。当然,从我国目前情况来看,似乎暂时不必专门去研制,因为其年产量毕竟是有限的。但是,由于公共汽车是用于城市的客运,因此又有其不同于卡车的特点。相应来说,公共汽车电路亦由于其内在原因,有其电路上的一些独特之处。本文根据目前公共汽车电路 The bus circuit is evolved from the truck (hereinafter referred to as “truck”) circuit, it should be said that the basic structure of the circuit is the same as the truck. This is because at present the buses are all converted from the chassis of the truck without forming a separate bus chassis system. Of course, judging from the current situation in our country, it seems that we do not have to go there for the time being because the annual output is limited after all. However, since buses are used for passenger transport in cities, they have different characteristics from trucks. Correspondingly, the bus circuit also has some unique features on the circuit due to its intrinsic reasons. This article is based on the current bus circuit