B60W2520/18

Agricultural work vehicle and control method

A working vehicle (2) for use in agriculture is configured for mounting a laterally protruding implement on the vehicle front or vehicle rear. The vehicle has an electronically controllable drive motor (4), an electronically controllable brake system (6), a sensor arrangement (8) for measuring rotational movements or rotational oscillations about at least one of three reference axes, and an electronic control device (10) for evaluating sensor data and for activating the drive motor (4) or the brake system (6). A data storage (50) stores threshold values for the sensor data. The control device determines characteristic values for the respective rotational movement or rotational oscillation and decides whether a reduction in travel speed is required in view of the threshold values. If true, the travel speed is reduced until the characteristic value reaches or falls below the threshold value.

Conveying Vehicle
20220314986 · 2022-10-06 ·

Provided is a conveying vehicle that ensures efficiently travelling while suppressing vehicle slip. A dump truck 100 includes a vehicle body 101 provided with wheels 103 and a vehicle control device 300 and travels on a travel route. The vehicle control device 300 calculates and stores slip limit values at a plurality of positions on the travel route, reads out the slip limit values to calculate at least one of a maximum acceleration and a maximum deceleration of the dump truck 100 at which the wheels 103 is capable of maintaining a grip state against a road surface, and sets a target travel speed at a travel position between the dump truck 100 and a target position according to a target speed at the target position and at least one of the maximum acceleration and the maximum deceleration.

Method and apparatus for operating a driver assistance system for a two-wheeled vehicle
11618522 · 2023-04-04 · ·

A method for operating a driver assistance system for a two-wheeled vehicle, which is characterized in that in an intervention step, the driver assistance system intervenes as a function of a driver-specific driving-dynamics profile and an instantaneous driving state, the driving-dynamics profile reflecting a relationship between inclined-position values at which a driver of the two-wheeled vehicle drove in the past and acceleration values at which he drove at the same time, and the driving state being characterized by an instantaneously acquired acceleration value and an instantaneously acquired inclined-position value.

Controller and control method
11654893 · 2023-05-23 · ·

A controller and a control method capable of appropriately assisting with a rider's operation while suppressing falling of a motorcycle, departure of the motorcycle from a lane, a difficulty of the motorcycle in adaptive cruise, and the like is disclosed. In the controller and the control method according to the present invention, in a control mode to make the motorcycle perform autonomous cruise acceleration operation, automatic acceleration that is acceleration generated to the motorcycle by the autonomous cruise acceleration operation is controlled in accordance with a lean angle of the motorcycle.

SYSTEM AND METHOD FOR PROBING PROPERTIES OF A TRAILER TOWED BY A TOWING VEHICLE IN A HEAVY-DUTY VEHICLE COMBINATION
20230146431 · 2023-05-11 ·

A system for probing properties of a trailer towed by a towing vehicle in a heavy-duty vehicle combination. The system comprises at least one torque generating component for inducing movements of the trailer relative to a yaw axis of the trailer; a control unit configured to, during driving of the vehicle combination, activate the torque generating component and apply a pre-determined control action to the torque generating component so as to excite oscillations of the trailer; and at least one detection unit configured to detect the resulting oscillations of the trailer, wherein the control unit is configured to, based on the detected resulting oscillations, determine one or more properties of the trailer. The invention also relates to a probing method.

Architecture for variable motion control envelope

The technology employs a variable motion control envelope that enables an on-board computing system of a self-driving vehicle to estimate future vehicle driving behavior along an upcoming path, in order to maintain a desired amount of control during autonomous driving. Factors including intrinsic vehicle properties, extrinsic environmental influences and road friction information are evaluated. Such factors can be evaluated to derive an available acceleration model, which defines an envelope of maximum longitudinal and lateral accelerations for the vehicle. This model, which may identify dynamically varying acceleration limits that can be affected by road conditions and road configurations, may be used by the on-board control system (e.g., a planner module of the processing system) to control driving operations of the vehicle in an autonomous driving mode.

POSTURE ESTIMATION METHOD, POSTURE ESTIMATION DEVICE, AND VEHICLE
20230202486 · 2023-06-29 ·

A posture estimation method includes calculating a posture change amount of an object based on an output of an angular velocity sensor, predicting posture information of the object by using the posture change amount, adjusting error information in a manner of determining whether or not the output of the angular velocity sensor is within an effective range and, when it is determined that the output of the angular velocity sensor is not within the effective range, increasing a posture error component in error information and reducing a correlation component between the posture error component and an error component other than the posture error component in the error information, and correcting the predicted posture information of the object based on the error information.

SEGMENTING GROUND POINTS FROM NON-GROUND POINTS TO ASSIST WITH LOCALIZATION OF AUTONOMOUS VEHICLES
20230204784 · 2023-06-29 ·

According to an aspect of an embodiment, operations may comprise receiving, from a LIDAR mounted on a vehicle, a first 3D point cloud comprising points of a region around the vehicle as observed by the LIDAR. The operations may also comprise accessing an HD map comprising a second 3D point cloud comprising points of the region around the vehicle. The operations may also comprise segmenting LIDAR ground points from LIDAR non-ground points in the first 3D point cloud. The operations may also comprise segmenting map ground points from map non-ground points in the second 3D point cloud. The operations may also comprise determining a pose of the vehicle by matching the LIDAR ground points to the map ground points and by matching the LIDAR non-ground points to the map non-ground points.

UTILITY VEHICLE

A utility vehicle includes: a travel structure including a front wheel, a rear wheel, a steering structure mounted to the front wheel, and a drive source that drives the front wheel and/or the rear wheel; circuitry that controls the travel structure to effect autonomous travel without manned operation in a given travel area; and a vehicle location detector that detects a location of the utility vehicle. During the autonomous travel, the circuitry determines, based on road condition data where the travel area is divided into regions with different predetermined road condition levels, to which of the road condition levels a road condition of a region ahead of the location of the utility vehicle in a travel direction belongs, and the circuitry controls the travel structure such that a given travel parameter is within a corresponding one of permissible ranges predetermined respectively in association with the road condition levels.

Vehicle Tire Saturation Estimator
20170369050 · 2017-12-28 ·

A vehicle and associated method for calculating tire saturation is provided. The method may include the stability control computer calculating slip ratio and longitudinal force for the tire, calculating tire longitudinal stiffness by dividing longitudinal force by slip ratio, calculating tire saturation from tire longitudinal stiffness, and the stability control computer altering dynamic control of the vehicle based on calculated tire saturation. The stability control computer may calculate tire saturation from a tire saturation membership function which includes a first tire longitudinal stiffness value representing an unsaturated tire, a second tire longitudinal stiffness value representing a saturated tire, and a function line connecting the first tire longitudinal stiffness value to the second tire longitudinal stiffness value.