Abstract: A gas concentration determination system includes an acoustic sensor generating acoustic sensor data and a humidity sensor generating relative humidity data. A modified relative humidity is determined based at least in part on the acoustic sensor data and the relative humidity data. A gas concentration is determined using the modified relative humidity and the acoustic data. Using the modified relative humidity instead of the relative humidity data may reduce false positives in detecting gas leaks in HVAC systems, for example.

Abstract: Methods, apparatuses, computer program products, systems for enhanced tracking of tire tread wear are disclosed. In a particular embodiment, a tire monitoring sensor (TMS) detects a tread wear reporting event, generates tread wear data including at least a rotational time period, and transmits the tread wear data to a vehicle control system (VCS). The rotational time period may be a measure of time the tire takes to complete a particular number of revolutions. The VCS receives, from the TMS, the tread wear data including at least the rotational time period, determines a current circumference of the tire based on at least the rotational time period, and determines a tread wear value based on at least the current circumference.

Abstract: Methods, system, apparatuses, and computer program products for securely pairing a vehicle-mounted wireless sensor with a central device are disclosed. In a particular embodiment, securely pairing a vehicle-mounted wireless sensor with a central device in accordance with the present disclosure includes a vehicle sensor device pairing with a vehicle control system (VCS) using a pre-shared passkey. The pre-shared passkey is shared between the vehicle sensor device and the VCS via an out-of-band exchange. This embodiment also includes the vehicle sensor device transmitting an identifier for a resolvable private address (RPA) to the VCS. In addition, the vehicle sensor device communicates with the VCS using the RPA. In this example embodiment, the RPA is periodically regenerated by the vehicle sensor device.

Abstract: Methods and apparatuses to obtain increased performance and differentiation for an inductive position sensor through non-disruptive placement of multiloop coil interconnects are disclosed. In a particular embodiment, a sense element includes at least one transmit coil and a first receive coil that includes a first plurality of arrayed loops. In this embodiment, two or more of the first plurality of arrayed loops are phase blended. The sense element also includes a first plurality of interconnects. In this embodiment, each of the first plurality of interconnects connects two of the first plurality of arrayed loops. In this embodiment, the first plurality of interconnects is disposed outside of a sensing area of the sense element.

Abstract: Methods, apparatus, systems, and computer program products for estimating error in an electric motor position sensor are disclosed. In a particular embodiment, an electronic control unit (ECU) for an electric motor receives, during a first state of operation of the electric motor, a first plurality of time samples of a first output signal from a position sensor, the first output signal indicative of a rotational position of the electric motor during the first state. The embodiment includes determining a first magnitude value for each of the first plurality of time samples of the first output signal, determining a first magnitude ripple value based upon the plurality of first magnitude values, and determining a first absolute angle error based on the first magnitude ripple value. The embodiment further includes determining an estimated error offset based on the first absolute angle error and storing the estimated error offset in a memory.

Abstract: A load monitoring system and techniques estimate a load on a vehicle, such as a trailer, bus, RV, or other vehicle. The system includes a sensor having a main body housing and an alignment feature. The main body housing contacts a first surface of a suspension component and the alignment feature contacts a second surface of the suspension component.

Abstract: A system and method determine and/or adjust tire pressure sensor timings to transmit information using BLE information, regardless of the presence of other BLE systems. A tire pressure monitoring (TPM) system or other computing device receives transmission timing information from tire monitors that transmit using BLE and/or other BLE-enabled components. In response to determining an interference between the transmissions of the tire monitors and/or the components, timing of the transmissions from one or more of the tire monitors is altered to avoid the interference.

Abstract: A system for measuring brake data from a braking assembly of a vehicle. The braking assembly includes a floating portion that moves relative to brake pad wear. The system includes a brake sensor for each wheel. The brake sensors include a fixed sensing element and a target portion attached for movement with the floating portion. The sensing element generates a signal indicating a position of the target portion. The signal is used to determine brake pad thickness. The brake sensor also transmits the signal over a wireless vehicle area network for receipt and processing by a wireless hub in the vehicle area network. The vehicle area network can generate and transmit an alert and/or instructions for an autonomous vehicle based on the signal.

Abstract: A steer-by-wire system comprising a steering wheel for use by an operator and an electric motor assembly coupled to the steering wheel for providing active torque feedback. The electric motor has a rotor mounted for rotation, and a magnet mounted to the rotor for rotation about an axis, wherein the at least one magnet is a permanent magnet with a pole pair. A fixed stator has coils for creating an electric field to act upon the magnet. Electronics are positioned on the axis of the magnet for controlling commutation of the stator coils and generating a primary high resolution angular position signal indicative of movement of the steering wheel by the operator. High resolution on-axis sensors, in communication with the electronics, detect a commutation position between the rotor and the stator and producing first and second continuous angle measurements for the pole pair of the at least one magnet.

Abstract: A method establishes a vehicle area network on a vehicle having a tractor with a tractor wireless hub, the tractor being connected to a first trailer having a first trailer wireless hub. The method activates the tractor hub and the first trailer wireless hub, and shares credentials between the tractor wireless hub and the first trailer wireless hub in accordance with out of band pairing techniques. Typically, the tractor wireless hub acts as an access point for the vehicle area network but the access point can be centralized by: searching down a length of the vehicle to determine relative locations of the tractor wireless hub, the first trailer wireless hub and the second trailer wireless hub; determining a centrally located hub based on the locations; and establishing the centrally located hub as the access point.

Abstract: Coil configurations for sensing devices, and related methods are directed towards a sensor including an inductance-capacitance oscillating circuit. The inductance-capacitance oscillating circuit may include a first coil arranged in parallel with a second coil. The inductance-capacitance oscillating circuit may further include an oscillator in electronic communication with the first coil and the second coil. The first inductance-capacitance oscillating circuit may also include at least one capacitor positioned between the oscillator and at least one of the first coil and the second coil.

Abstract: Methods, systems, apparatuses, and computer program products for persistent alarm transmissions associated with a vehicle mounted wireless sensor device are disclosed. In a particular embodiment, persistent alarm transmission includes a vehicle mounted wireless sensor device monitoring one or more operational parameters of a vehicle and detecting that the one or more operational parameters violates a configurable threshold that is configured by another device. In response to detecting that the one or more operational parameters violates the configurable threshold, the vehicle mounted wireless sensor device persistently transmits an alarm message.

Abstract: The technology provides a method for monitoring a load carrier vehicle (10: 12: 22: 154), comprising measuring at least one sensor value indicating a force and determining a mass based on the at least one sensor value. Furthermore, monitoring devices (156) used in the method and load carrier vehicles (10: 12: 22: 154) are described.

Abstract: A system and method calculates a vehicle load on a suspension system of a vehicle using a plurality of tilt angle sensors. The angle sensors are attached to the suspension system and configured to measure an angle with respect to gravity. A first angle sensor is configured to measure a first angle. A second sensor configured to measure a second angle. The measured first and second angles are combined to obtain a combined value representative of a vehicle load adjusted for tilt.

Abstract: A tire monitor includes a sensor generating tire data and a plurality of control modules having phase locked loop circuits. The control modules generate output signals carrying the tire data. A first of the control modules is configured to generate first output signals having a first frequency and according to a first protocol. A second of the control modules is configured to generate second output signals having a second frequency and according to a second protocol. In examples, the output signal can be transmitted in parallel to different computing systems.

Abstract: The present disclosure relates to a system and method for a tire pressure monitoring system. Embodiments may include receiving and storing an input signal in a memory; receiving a digital signal from the memory at a digital signal processor, wherein the digital signal processor includes a plurality of selectable filters; filtering the digital signal through the plurality of selectable filters, wherein filtering the digital signal generates a forward-filtered digital signal; storing the forward-filtered digital signal in the memory; reversing the forward-filtered digital signal, wherein reversing the forward-filtered digital signal generates a reverse-filtered digital signal; and filtering the reverse-filtered digital signal through the plurality of selectable filters, wherein filtering the reverse-filtered digital signal generates a processed signal.

Abstract: Methods, systems, apparatuses, and computer program products for sensor auto-location using phased antenna array beamforming are disclosed. In a particular embodiment, a method of sensor auto-location using phased antenna array beamforming includes sending a radio frequency (RF) signal beam directed towards a given tire placement direction of a vehicle. In this embodiment, the method includes receiving an acknowledgement from a sensor and determining whether one or more signal attributes indicated in the acknowledgement are within one or more predefined ranges for the one or more signal attributes and corresponding to the given tire placement direction. In response to the one or more signal attributes being within the one or more predefined ranges, the method includes determining that the sensor is fitted on the given tire placement direction.

Abstract: Embodiments included herein are directed towards sensing devices and related methods. Embodiments may include a first gauge positioned on a port of the sensing device. A first resistor of the first gauge may be positioned in a first compression region of the port. A second resistor of the first gauge may also be positioned in the first compression region of the port.

Abstract: Embodiments included herein are directed towards an apparatus and method for manufacturing an electrical cooling apparatus. The method may include forming a first entirely solid metal plate to generate an enclosure. The method may also include affixing a bottom metal plate to the first entirely solid metal plate, the bottom metal plate may define a channel system. The bottom metal plate may include one or more inlet openings into the channel system, where the one or more inlet openings are configured to allow coolant to enter or exit the channel system.

Abstract: A tire monitoring apparatus comprises a sensor housing having a connection part integrated with the sensor housing, the connection part having an elongated opening and a corresponding mounting feature in a wheel rim, wherein a screw extends through the elongated opening and connects with the corresponding mounting feature in the wheel rim, thereby when the screw is not tightened fully, the sensor housing can be rotated with respect to the corresponding mounting feature in the wheel rim, and when the screw is tightened fully, the sensor housing is secured in place and does not rotate with respect to the corresponding mounting feature in the wheel rim.