ROAD SURFACE EVALUATION APPARATUS
    1.
    发明公开

    公开(公告)号:US20240308527A1

    公开(公告)日:2024-09-19

    申请号:US18602019

    申请日:2024-03-12

    摘要: A road surface evaluation apparatus includes a microprocessor is configured to perform: acquiring as driving information of a plurality of vehicles, position information of the plurality of vehicles, acceleration information indicating acceleration of the plurality of vehicles and map information of a predetermined road; calculating a degree of stability of a driving behavior of each of the plurality of vehicles based on the driving information when the plurality of vehicles drove on the predetermined road in a past; selecting a group of vehicles to be evaluated from among vehicles whose degree of stability is equal to or greater than a predetermined degree; evaluating a roughness of a road surface of the predetermined road based on the driving information of the group of vehicles; and outputting information on the roughness evaluated in the evaluating in association with the information of the predetermined road.

    METHOD AND SYSTEM FOR MONITORING OPERATION OF A VEHICLE

    公开(公告)号:US20240182039A1

    公开(公告)日:2024-06-06

    申请号:US18556220

    申请日:2022-05-25

    摘要: Aspects of the disclosure relate to a system and a computer implemented method for monitoring operation of a vehicle, including: providing a trip dataset including time data, and accelerometer data obtained from an accelerometer configured to measure acceleration in 3 acceleration axes, wherein the accelerometer may be included in a mobile device being transported by the vehicle during data acquisition of the trip dataset, wherein the trip dataset corresponds to a vehicle trajectory; processing the trip dataset into a uniformly sampled dataset; producing gravitational vector direction data by determining a gravitational vector direction transforming the coordinates from the trip dataset from mobile device coordinates into vehicle coordinates; dividing the uniformly sampled dataset into a plurality of trip segments; for each trip segment of the plurality of trip segments, identifying one or more acceleration events by comparing the acceleration data of the trip segment with pre-determined thresholds; and reducing use of the vehicle.

    VEHICLE BEHAVIOR CONTROL METHOD AND VEHICLE BEHAVIOR CONTROL DEVICE

    公开(公告)号:US20240109547A1

    公开(公告)日:2024-04-04

    申请号:US18364688

    申请日:2023-08-03

    摘要: A difference in a longitudinal force indicating a difference between the longitudinal force acting on left and right wheels is obtained. A correction amount of the longitudinal force acting on each wheel is calculated based on the difference in the longitudinal force, and each wheel is independently controlled. When the difference in the longitudinal force is obtained, a speed increasing ratio of a front wheel steering angle for changing an overall steering ratio is calculated based on a preset control map and an input parameter including a vehicle speed and a lateral acceleration or the vehicle speed and steering wheel angle. A yaw moment to be generated around a weighted center of the vehicle is calculated based on the speed increasing ratio and a steering wheel angle of the vehicle as the input parameter. The difference in the longitudinal force is then calculated based on this yaw moment.

    AUTONOMOUS DRIVING KIT, VEHICLE PLATFORM, VEHICLE CONTROL INTERFACE BOX, AND VEHICLE

    公开(公告)号:US20230110748A1

    公开(公告)日:2023-04-13

    申请号:US17946350

    申请日:2022-09-16

    摘要: An ADK is attachable to and removable from a VP and issues an instruction for autonomous driving to the VP. The VP includes a steering system for steering of the VP. (An ADS of) the ADK includes a compute assembly and communication module configured to communicate with the VP. The compute assembly obtains from the VP, a prescribed reference on which control of a wheel steer angle is premised, calculates the steer angle in accordance with a driving plan for autonomous driving based on the obtained prescribed reference, and transmits a wheel steer angle command indicating the calculated steer angle to the VP. When the attachable and removable ADK that issues the instruction for autonomous driving controls the VP, without storage of the prescribed reference on which control of the wheel steer angle is premised in advance in the ADK, control suited to a base vehicle can be carried out.

    Information processing apparatus
    10.
    发明授权

    公开(公告)号:US11608075B2

    公开(公告)日:2023-03-21

    申请号:US16422265

    申请日:2019-05-24

    摘要: An information processing apparatus includes a receiver configured to receive a data set including a requested acceleration as information representing movement of a vehicle in a front-rear direction and any one of a steering angle, a yaw rate, and a rotation radius as information representing movement of the vehicle in a lateral direction from each of a plurality of applications, an arbitration unit configured to perform arbitration of information representing the movement of the vehicle in the front-rear direction and arbitration of information representing the movement of the vehicle in the lateral direction based on a plurality of the data sets received by the receiver, and a first output unit configured to output instruction information for driving an actuator based on an arbitration result of the arbitration unit.