OBD系统详述(9)

汽车电子诊断OBD相关文档

安装位置

SAE J1962 对DLC的位置做了如下功能性要求： 3. Vehicle Connector Location/Access

3.1 Consistency of Location - The vehicle connector shall be located in the passenger compartment in the area bounded by the driver’s end of the instrument panel to 300mm beyond the vehicle centerline, attached to the instrument panel, and accessible from the driver’s seat. The preferred location is between the steering column and the vehicle centerline. The vehicle connector shall be mounted to facilitate mating and unmating.

3.2 Ease of Access - Access to the vehicle connector shall not require a tool for the removal of an instrument panel cover, connector cover, or any barriers. The vehicle connector should be fastened and located as to permit a one-handed/blind insertion of the mating test equipment connector.

3.3 Visibility - The vehicle connector should be out of the occupant’s (front and rear seat) normal line of sight but easily visible to a ―crouched‖ technician.‖

— SAE J1962 ―Diagnostic Connector‖ (June 1992)

即：

1. 类型A的DLC应该位于驾驶员或者副驾驶员舱内，以驾驶员侧仪表盘边缘和越过汽车

中线300mm处为边界的区域内的仪表盘上，在驾驶员座位上便于触及。首选的位置在转向柱和汽车中线之间。

2. DLC应该不使用任何工具就可以移除仪表板或者接口上的遮盖物。应该能够通过单手、

不需目视就可以插上外部的连接口。

3. 这个接口应该在成员的正常视线之外，但是技工屈身应该可以看到。 如下图所示：