Abstract: The present disclosure relates to medicament injection devices. An injection device includes: a movable dosage programming component comprising a rotary encoder system having a predefined angular periodicity, a sensor arrangement including a first optical sensor configured to detect movement of the movable dosage programming component relative to the sensor arrangement during dosing of a medicament, wherein the first optical sensor is configured to operate in a strobe-sampling mode at a first frequency, a second optical sensor configured to detect movement of the rotary encoder system relative to the second optical sensor wherein the second optical sensor is configured to operate in a strobe-sampling mode at a second frequency lower than the first frequency, and a processor arrangement configured to, based on the detected movement, determine a medicament dosage administered by the injection device.

Abstract: A modular tire pressure leak detection system includes a tire that supports a vehicle and a sensor unit mounted on the tire. The sensor unit detects real-time tire parameters inside the tire and transmits the parameters to a processor. A plurality of modules are in electronic communication with the processor. The plurality of modules include a pre-processing module that receives the parameters and applies a set of operations to generate pressure time series data, a leak detection module that receives the pressure time series data and determines a leak rate of the tire, and a post-processing module that receives the leak rate of the tire and analyzes the leak rate of the tire with determinations from a plurality of conditions. A leak alert is issued by the post-processing module based upon the analysis of the leak rate of the tire and the determinations from the plurality of conditions.

Abstract: A method for estimating a condition of a tire is provided. The tire supports a vehicle and is mounted on a wheel. The wheel is rotatably mounted on an axle. A sensor is mounted on at least one of the tire, the wheel, the axle, and a component of the brake system. Vibrational data is measured with the sensor. The data from the sensor is transmitted to a processor, and the data is processed. The processed data is normalized and at least one of the normalized data and pre-processed data is input into a machine learning model. A condition estimation for the tire is generated, which includes at least one of a tread depth of the tire, a pressure of the tire, and a dual tire mismatch.

Abstract: A tire assembly is disclosed, wherein the tire has a tread portion and a pair of sidewalls extending radially inward from the tread portion to join with a respective bead; a supporting carcass for the tread portion and sidewalls; and a pump passageway positioned within a bending region of the tire. The pump passageway is operative to open and close as the tire rotates. The tire assembly further includes a valve assembly in fluid communication with the pump passageway. The tire further includes a pocket formed in the tire, and a filter assembly is mounted in the pocket.

Abstract: A frame for a heavy-duty vehicle includes a pail of spaced-apart, parallel, elongated, and longitudinally-extending main members. At least a pair of transverse cross members extend between and are attached to the main members, and each one of at least a pair of hangers is attached to and depends from a respective one of the main members and/or the cross members. A component is disposed between each one of the hangers and its respective main member, or alternatively is incorporated into the hangers, for absorbing the energy that is created by an extreme event during vehicle operation, to reduce the possibility of damage to the main members and/or the cross members caused by movement of at least one of the hangers during the extreme event.

Abstract: A cam shaft support and enclosure assembly includes a tube formed with a flat on its inboard end. An outboard end of the tube is supported on a spider which in turn is mounted on an axle of a heavy duty vehicle. A bushing is mounted in each of the tube ends, and a shaft is rotatably mounted in and passes completely through the bushings and sealed and lubricated tube. An S-cam is integrally formed on an exposed outboard end of the shaft and the exposed inboard end of the shaft is formed with splines for meshingly engaging a slack adjuster of the vehicle brake system. A support plate formed with a generally D-shaped keyhole is mounted on the suspension beam, and is slip-fittingly engaged by the correspondingly shaped and sized inboard end of the tube. The weld-free keyhole connection of the tube and plate enables the plate to react rotation of the tube without the possibility of fatigue or failure of a weld.