A failure sign determining device includes an acquirer to acquire pieces of sensor data based on respective values measured by multiple sensors, an FFT processor to execute fast Fourier transform on each of the pieces of sensor data and thereby generate a piece of frequency spectrum data, and a determiner to determine the existence of a failure sign on the basis of comparison between the piece of frequency spectrum data and a spectrum range defined for the sensor. The determiner, only when determining that a failure sign exists, transmits at least either of the piece of frequency spectrum data and the piece of sensor data to an analysis apparatus.

A control device for a vehicle includes an operation unit, an operation-unit sensor, a motor, and a driving force controller. The operation-unit sensor is configured to detect an operation-unit operation amount. The operation-unit operation amount is an amount of operation of the operation unit. The motor is capable of generating a negative driving force for decelerating the vehicle. The driving force controller is configured to cause the motor to drive a wheel of the vehicle with the negative driving force on a basis of the operation-unit operation amount, and to derive the negative driving force in accordance with an initial time change. The initial time change represents an amount of change in the operation-unit operation amount per unit time relative to an operation-unit operation amount at an initial position of the operation unit.

A drive control apparatus to be applied to an electric vehicle includes a controller. The controller is configured to limit a change rate of a torque to be outputted from an electric motor of the electric vehicle on the basis of a first limit mode in a case where the torque is less than a threshold torque, in a period of a first traveling state in which the electric vehicle travels on an uphill road where a level of likelihood of an occurrence of a slip is estimated to be equal to or greater than a threshold, and configured to limit the change rate of the torque on the basis of a second limit mode that is more flexible than the first limit mode in a case where the torque is equal to or greater than the threshold torque in the period of the first traveling state.

A vehicle braking energy recovering method includes obtaining current location information of a vehicle, determining a current road scenario based on the current location information of the vehicle, determining the current road scenario based on a mapping relationship between a road scenario and a weight, determining a safe distance and a safe speed of the vehicle based on the weight, determining a target torque based on the safe distance and the safe speed of the vehicle, and controlling, based on the target torque, a motor of the vehicle to recover braking energy.

There is provided an automatic train operation system which can stop a train precisely at a stop target position without worsening ride quality even with the control system being a discrete system. The automatic train operation system comprises a relative distance measuring device to acquire information about a relative distance of the train relative to a stop position of a station to output average distance information that is the average of relative distances and a brake control device. The brake control device includes a sensor information holding unit to hold speed information and position information detected by sensors to output; a correction amount computing unit to compute a specifying value correction amount to output; and an instruction planning unit to compute a deceleration specifying value based on the specifying value correction amount and sensor information.

A drivability target engine speed is set based on a shift stage based on an accelerator opening level and a vehicle speed and the vehicle speed, and a base driving force is set based on an accelerator required driving force and the drivability target engine speed. When an elapsed time after an accelerator depression amount increases is less than a threshold value, a correction driving force is set based on an increase in accelerator depression amount and an engine, a first motor, and a second motor are controlled such that an effective driving force obtained by adding the correction driving force to the base driving force is output to a drive shaft for a hybrid vehicle to travel.

The invention relates to a control system for controlling a torque generator of a vehicle. The control system is configured to receive one or more electrical signals indicative of a surface indicator; receive one or more electrical signals indicative of a deceleration demand; select a surface type from a plurality of predetermined surface types based on said one or more electrical signals indicative of a surface indicator; determine a target vehicle deceleration in dependence on the selected surface type; determine, based on said one or more electrical signals indicative of a deceleration demand, a requirement to decelerate the vehicle; and in dependence on determining said requirement, output a control signal to the torque generator. The control signal is configured to cause the torque generator to provide the target vehicle deceleration.

A method of improving braking performance through motor torque control of a vehicle includes: determining a relation between a vehicle wheel torque change amount and a driving acceleration change amount prior to a start of braking of the vehicle; calculating a target acceleration that is changed according to a driver's braking request when a driver presses a brake pedal to start the braking of the vehicle; detecting a real acceleration of the vehicle in real-time; comparing the real acceleration with the target acceleration; and compensating for a difference between the real acceleration and the target acceleration by increasing a regenerative braking amount through motor torque control when the real acceleration differs from the target acceleration.

A rotatable LIDAR device including contactless electrical couplings is disclosed. An example rotatable LIDAR device includes a vehicle electrical coupling including (i) a first conductive ring, (ii) a second conductive ring, and (iii) a first coil. The example rotatable LIDAR device further includes a LIDAR electrical coupling including (i) a third conductive ring, (ii) a fourth conductive ring, and (iii) a second coil. The example rotatable LIDAR device still further includes a rotatable LIDAR electrically coupled to the LIDAR electrical coupling. The first conductive ring and the third conductive ring form a first capacitor configured to transmit communications to the rotatable LIDAR, the second conductive ring and the fourth conductive ring form a second capacitor configured to transmit communications from the rotatable LIDAR, and the first coil and the second coil form a transformer configured to provide power to the rotatable LIDAR.

A method, for a trailer brake control device of a vehicle trailer with an electric drive, includes receiving at least one acceleration request signal with a requested positive acceleration or a requested negative acceleration and further receiving a status signal with at least one status variable of the electric drive of the vehicle trailer. The method also includes generating, with a controller of the trailer brake control device, at least one brake actuation signal for at least one friction brake of the vehicle trailer and a torque request signal for the electric drive, each based on the at least one acceleration request signal and the status signal. Furthermore, the method includes outputting the brake actuation signal and the torque request signal via at least one output and/or at least one interface of the trailer brake control device.