Abstract: A wireless sensor for a wheel end assembly of a heavy-duty vehicle is provided. The wheel end assembly includes a wheel hub and a hub cap mounted on the wheel hub. The sensor includes mounting means disposed in the hub cap. Sensing means are mounted on the mounting means to sense at least one condition of the vehicle. A processor is mounted on the mounting means and is electrically connected to the sensing means to process data from the sensing means. Communication means are mounted on the mounting means and are electrically connected to the processor to communicate the processed data to a user. An electrical energy storage device is mounted on the mounting means and is electrically connected to the sensing means, the processor and the communication means, enabling the sensor to be independent from the vehicle power supply. The sensor also accommodates components of a tire inflation system.

Abstract: A lift assembly for a suspension assembly of an axle/suspension system is located generally adjacent to and beside the suspension assembly. The lift assembly includes an air chamber, a support member assembly, a pivot arm assembly and a beam support assembly. The support member assembly attaches to the hanger of the suspension assembly, to the air chamber, and pivotally attaches to the pivot arm assembly. The air chamber also attaches to the pivot arm assembly. The pivot arm assembly pivotally attaches to the beam support assembly which in turn attaches to the beam of the suspension assembly, for raising and/or lowering the suspension assembly during operation of the heavy-duty vehicle.