OBD系统详述(3)

汽车电子诊断OBD相关文档

对其发出指令，包括去何处维修的建议，解决排放问题的时限等。这些信息可在相关法规的基础上对维护不当从而造成过多排放污染的车辆惩罚。

OBD-III的不仅需要相关通讯技术、标准和法规的不断成熟，对OBD系统诊断功能本身的准确性和可靠性也是一个更高的要求。目前OBD-III仍然处于发展阶段，也因此有很多有趣的设想。可通过本页的参考资料获得更多的信息。

―Wireless OBDII and Remote Sensing Strategies for Next Generation Vehicle Inspection/Maintenance Programs.‖ Chris Stock, VP Marketing, Environmental Systems Products.

标准协议

PWM (Pulse Width Modulated)

SAE/J1850

SAE-established OBD II communication standard used by Ford domestic cars and light trucks. One of three hardware layers defined by OBD II.

VPW(Variable Pulse Width Modulated)

SAE/J1850

SAE-established OBD II communication standard used by GM cars and light trucks. One of three hardware layers defined by OBD II.