Methods, systems, and non-transitory computer-readable media estimate coasting behavior of a vehicle; identify a scenario associated with coasting in an environment of the vehicle; and based in part on the coasting behavior, generate a trajectory associated with coasting for the vehicle to move in the scenario.

A method, system and computer program product are provided for determining a measure of brake system usage during operation of a vehicle, the vehicle comprising a power source for generating a motive force for propulsion of the vehicle in a first direction of travel, and driver controllable means for requesting a brake force that acts against a movement of the vehicle in the first direction of travel. When a driver of the vehicle requests a brake force, the method comprises determining an influence on the vehicle acceleration caused by the request for brake force; and determining, based on the determined influence, a measure of brake system usage of the vehicle, the measure indicating a level of economical driving, wherein a particular level is arranged to depend on the magnitude of the influence on the vehicle acceleration caused by the request for brake force.

In various example embodiments, a system and method for determining a total weight of a vehicle, transmitting the total weight measured to the vehicle's autonomous control system, and controlling the vehicle according to the total weight of the vehicle. The system and method further transmits information between separate vehicles with similar autonomous control systems. A method includes: providing predetermined calibration settings relating drive force to motor speed for a vehicle travelling at various speeds, determining that one or more vehicle performance parameters fall within a threshold range, determining the vehicle's longitudinal acceleration and drive force, determining a total weight comprising a weight of the vehicle and a weight being hauled by the vehicle; transmitting the total weight to the autonomous control system, and controlling the vehicle according to total weight of the vehicle.

An information presentation device includes a processor configured to (i) acquire vehicle information relating to a plurality of peripheral vehicles around an own vehicle, (ii) calculate an effect index representing an effect due to follow-up travel of traveling behind each of the plurality of peripheral vehicles based on the vehicle information for each of the plurality of peripheral vehicles, and (iii) cause an output device of the own vehicle to output position information and the effect index relating to at least a portion of the plurality of peripheral vehicles.

A method of producing a desired driving performance for a vehicle includes regulating a pressure inside a bladder, which defines an outer surface of the vehicle. A change in the bladder pressure changes the shape of the bladder, and thereby changes a shape of the outer surface of the vehicle, thus affecting the aerodynamics of the vehicle. The bladder pressure is regulated to be at a target bladder pressure based on the driving condition of the vehicle, which target bladder pressure can be derived from real-time machine learning or based on previous testing of a prototype of the vehicle, and thus affects aerodynamics of the vehicle so as to produce the desired driving performance for the vehicle in the driving condition.

A method is described for determining interface conditions between a tire and the ground in a motor vehicle, particularly to determine an onset of an aquaplaning phenomena. The method includes: determining a reference longitudinal acceleration of the vehicle, measuring an actual longitudinal acceleration of the vehicle, calculating a difference between the reference longitudinal acceleration and the actual longitudinal acceleration, determining an additional drag at the interface between tire and ground on the basis of the difference, and a lift at the interface between tire and ground on the basis of the additional drag, and determining a threshold force at which a lifting of the tire from the ground occurs, comparing the lift with the threshold force and determining a degree of proximity of the interface conditions between tire and ground to an aquaplaning condition.

In various example embodiments, a system and method for determining a total weight of a vehicle, transmitting the total weight measured to the vehicle's autonomous control system, and controlling the vehicle according to the total weight of the vehicle. The system and method further transmits information between separate vehicles with similar autonomous control systems. A method includes: providing predetermined calibration settings relating drive force to motor speed for a vehicle travelling at various speeds, determining that one or more vehicle performance parameters fall within a threshold range, determining the vehicle's longitudinal acceleration and drive force, determining a total weight comprising a weight of the vehicle and a weight being hauled by the vehicle; transmitting the total weight to the autonomous control system, and controlling the vehicle according to total weight of the vehicle.

A decelerating factor estimating device configured to estimate a decelerating factor of a vehicle includes a drive force acquiring unit configured to acquire a drive force of the vehicle; a vehicle speed acquiring unit configured to acquire a vehicle speed of the vehicle; an acceleration acquiring unit configured to acquire an acceleration of the vehicle; and a decelerating factor estimating unit configured to estimate a plurality of decelerating factors based on a relationship of the acquired drive force, speed, and acceleration, wherein the decelerating factor estimating unit determines a type of the decelerating factor to estimate based on a traveling state of the vehicle.

A work machine is moved along a route over worksite terrain. Route data indicative of the route is recorded and an operating parameter data indicative of at least one operating parameter of the work machine is determined as the machine moves along the route. The operating parameter data is used to generate rolling resistance data indicative of the resistance of the terrain to the movement of the work machine as it moves along the route. Then the rolling resistance data is processed to generate compaction data indicative of the compaction of the terrain along the route.

Provided is a travel control device by which it is possible to further improve fuel economy in a vehicle. A travel control device has the following: a weather information acquisition unit that acquires weather information indicating a weather state of a road on which a vehicle travels; an estimation value switching unit that sets in a modifiable manner an estimation value for travel resistance on the vehicle traveling on the road, according to the acquired weather information; a coasting travel estimation unit that estimates a change in speed of the vehicle on the road on the basis of the estimation value for the set travel resistance; and an automatic travel control unit that generates a travel schedule for the vehicle including driving travel and coasting travel on the basis of the estimated change in the vehicular speed, and causes the vehicle to travel according to the generated travel schedule.