There is a method, system, and device for diagnosing an anomaly of a monitored component in a drive train, the method including obtaining original data based on samples of a vibration signal and a tachometer signal; generating a time synchronous average vibration signal; processing the time synchronous average vibration signal to produce a frequency-domain spectrum; determining the complex magnitudes of the frequency-domain spectrum; selecting a sub-synchronous band of the complex magnitudes of the frequency-domain spectrum to generate a sub-synchronous spectrum; and determining the mean of the sub-synchronous spectrum to generate a condition indicator.

Systems, methods, and computers for aircraft are provided. A system includes a portable device and an on-board computer for an aircraft. The on-board computer is configured to record preliminary squawk events that occur while the aircraft is in flight for potential corrective action. The portable device is configured to communicate with the on-board-computer and is configured for: receivingfrom the on-board computerpreliminary squawk events that occur while the aircraft is in flight; presenting the preliminary squawk events; receiving approval inputs that indicate approved squawk events of the preliminary squawk events; and generating a squawk list that includes each of the approved squawk events to be investigated for corrective action after the flight.

Systems and methods for improving fuel economy in vehicles such as Class 8 trucks are provided. In some embodiments, signals indicating states of the powertrain are collected and used to generate fuel rate optimization values. Fuel rate optimization values may indicate a difference between optimum fuel flow rates and actual fuel flow rates during a vehicle drive cycle. Recorded fuel rate optimization values may be used to compare different vehicle configurations during testing, and may also be used to evaluate vehicle performance during real-world operation.

Systems and methods for improving fuel economy in vehicles such as Class 8 trucks are provided. In some embodiments, signals indicating states of the powertrain are collected and used to generate fuel rate optimization values. Fuel rate optimization values may indicate a difference between optimum fuel flow rates and actual fuel flow rates during a vehicle drive cycle. Recorded fuel rate optimization values may be used to compare different vehicle configurations during testing, and may also be used to evaluate vehicle performance during real-world operation.

A method for testing a vehicle system that is installed in each vehicle of a fleet of vehicles, the method may include executing, for each vehicle of the fleet of vehicles, the steps of: sensing one or more sensed vehicle system parameters of the vehicle system; calculating, by a vehicle monitor of the vehicle, one or more performance parameters of the vehicle system, wherein the calculating is based on the one or more sensed vehicle system parameters of the vehicle system; and transmitting information about the one or more sensed vehicle system parameters.

A method for testing an object to be tested includes obtaining a planned parameter corresponding to the object to be tested. The method also includes obtaining an actual parameter corresponding to the object to be tested through a simulation platform. The method further includes obtaining a testing result corresponding to the object to be tested based on the planned parameter and the actual parameter.

A method for testing an object to be tested includes obtaining a planned parameter corresponding to the object to be tested. The method also includes obtaining an actual parameter corresponding to the object to be tested through a simulation platform. The method further includes obtaining a testing result corresponding to the object to be tested based on the planned parameter and the actual parameter.

Provided is a device for determining a wheel fastening state that allows a wheel fastening state to be monitored during running. The device includes a sensor unit (3) that is attachable to and detachable from a wheel fastening part, an information terminal (4) that is an in-vehicle device (4A) or a portable terminal (4B), and a server (30). The terminal (4) includes a measurement instruction module (23) to read vehicle state data from a control and communication system (5) of a vehicle and send an instruction for to measurement to the sensor unit (3) at determined timing. The server (30) includes a first information processing module (32) configured to determine an abnormality of a fastening state of the wheel fastening part by comparing the measurement data with accumulated data that is measured under the same condition and stored in the past.

A motion sickness estimation device includes: a line-of-sight oscillation detector to detect oscillation of a line of sight of an occupant by using an imaging device; an object oscillation detector to detect oscillation of an object located in the line of sight; an oscillation comparator to calculate an oscillation difference from the oscillation of the line of sight and the oscillation of the object; and a motion sickness determiner to determine, on a basis of the oscillation difference, whether the occupant is in a motion sickness state.

A motion sickness estimation device includes: a line-of-sight oscillation detector to detect oscillation of a line of sight of an occupant by using an imaging device; an object oscillation detector to detect oscillation of an object located in the line of sight; an oscillation comparator to calculate an oscillation difference from the oscillation of the line of sight and the oscillation of the object; and a motion sickness determiner to determine, on a basis of the oscillation difference, whether the occupant is in a motion sickness state.