Sub-resolution measurement of fuel in fuel tank. In an embodiment, data, which comprise discrete fuel levels in a fuel tank and fuel injection rates for an internal combustion engine, are received. The fuel injection rates are integrated over a traversed distance to produce a fuel consumption series, and the discrete fuel levels are clustered over the traversed distance to produce a fuel level series. The fuel consumption and fuel level series are synchronized into a model that is used to generate sub-resolution measurements of fuel levels between the discrete fuel levels.

Sub-resolution measurement of fuel in fuel tank. In an embodiment, data, which comprise discrete fuel levels in a fuel tank and fuel injection rates for an internal combustion engine, are received. The fuel injection rates are integrated over a traversed distance to produce a fuel consumption series, and the discrete fuel levels are clustered over the traversed distance to produce a fuel level series. The fuel consumption and fuel level series are synchronized into a model that is used to generate sub-resolution measurements of fuel levels between the discrete fuel levels.

A vehicle theft-prevention apparatus can include a slip clutch mechanism, a locking mechanism, and a cylindrical body including a first portion and a second portion. The first portion can be configured to rotate about the second portion. The locking mechanism can be configured to engage based on rotation of the first portion relative to the second portion in a first direction, and disengage based on a rotation of the first portion relative to the second portion in a second direction. The slip clutch mechanism can be configured to prevent the locking mechanism from further engaging from rotation in the first direction relative to the second portion based on a magnitude of force applied.

A vehicle theft-prevention apparatus can include a body, a computing device, sensors, and a speaker. The body can include a first and second portion and a light emitting portion. The first portion can move relative to the second portion. The second portion can include perforations to facilitate sound transmission from the speaker. The light emitting portion can be positioned between the first portion and the second portion. The light emitting portion can be configured to emit light based on a signal from the computing device. A lens can include a concentric structure protruding from the body. The lens can cover the sensor.

A sensing device can include an accelerometer, a transceiver, and a computing device in communication with the accelerometer and transceiver. The computing device can transmit a first set of signals at a first power level to a remote device. The computing device can determine, via the accelerometer, a movement of the sensing device. The computing device can increase a power level for transmission from the first power level to a second power level in response to the movement. The computing device can transmit future signals at the second power level to the remote device.

A sensing device can include an accelerometer, a transceiver, and a computing device in communication with the accelerometer and transceiver. The computing device can transmit a first set of signals at a first power level to a remote device. The computing device can determine, via the accelerometer, a movement of the sensing device. The computing device can increase a power level for transmission from the first power level to a second power level in response to the movement. The computing device can transmit future signals at the second power level to the remote device.

Trailer localizing systems and methods include a trailer to be coupled to the tow vehicle for towing and comprising solar panels and a tracking device communicatively coupled with a location determination device to transmit a current real time position of the trailer when active. The system is configured to determine whether the trailer is electronically connected to the tow vehicle, whether the solar panels are active upon a determination that the trailer is not electrically connected to the tow vehicle, activate the tracking device along with the location determination device upon a determination that the trailer is electronically connected to the tow vehicle, the plurality of solar panels are active, or both, generate an alert that the tracking device is active upon activation of the tracking device, and transmit the current real time position of the trailer with the alert to track the trailer.

Trailer localizing systems and methods include a trailer to be coupled to the tow vehicle for towing and comprising solar panels and a tracking device communicatively coupled with a location determination device to transmit a current real time position of the trailer when active. The system is configured to determine whether the trailer is electronically connected to the tow vehicle, whether the solar panels are active upon a determination that the trailer is not electrically connected to the tow vehicle, activate the tracking device along with the location determination device upon a determination that the trailer is electronically connected to the tow vehicle, the plurality of solar panels are active, or both, generate an alert that the tracking device is active upon activation of the tracking device, and transmit the current real time position of the trailer with the alert to track the trailer.

A method and an enhanced electronic logging device (ELD) enable a load lock feature of a vehicle that assists with automated theft detection, reporting, and tracking of stolen vehicles/cargo. The processor of the ELD enables the ELD to register the operator MCD to receive notifications generated by a load lock module and present on a display of the ELD at least one selectable option for activating a load lock of the vehicle, the load lock identifying that the operator has parked the vehicle and has triggered the ELD to report any movement of the vehicle that occurs while the load lock is activated. The processor generates and transmits a notification of unauthorized movement or a potential theft of the vehicle in response to receiving an input from the movement detection device indicating that the vehicle is moving or being moved from a parked location while the load lock is activated.

An illustrative example vehicle sensor system includes a plurality of barometric pressure sensors. A first barometric pressure sensor is situated on a first portion of the vehicle that faces at least partially in a first direction and a second barometric pressure sensor is situated on a second portion of the vehicle that faces at least partially in a second direction that is different than the first direction. A processor is configured to make a determination regarding vehicle motion based on respective indications from the plurality of barometric pressure sensors.