Abstract: The present invention relates to an electrical power and communication bus system for a truck, a tractor, or a tractor with a trailer and an associated bogie, where the electrical power and communication bus system reside in an anti-lock brake system (ABS) module that is disposed on the truck, the tractor, or the bogie of the trailer. The bus system comprises a bus controller, which utilizes a bus protocol, at least one bus connector that is electrically connected to a processor in the ABS, a source of power, and at least one auxiliary system that is electrically connected to the bus connector.

Abstract: The present invention relates to a vehicle wheel sensor apparatus and a method that determine if a vehicle wheel sensor is active or passive, while efficiently providing the necessary connectivity, power, and communication between the sensor and a controller, without requiring a change in controller hardware. For an active sensor, the apparatus provides power and receives speed signals, high frequency vibration or acceleration signals, or other analog signals. For a passive sensor, the apparatus receives speed signals.