ROBUST ACTUATOR CONTROL METHODS FOR HEAVY-DUTY VEHICLE MOTION MANAGEMENT

    公开(公告)号:US20250050851A1

    公开(公告)日:2025-02-13

    申请号:US18721406

    申请日:2021-12-20

    Abstract: A control unit for controlling at least one torque generating MSD on a heavy-duty vehicle. The control unit receives a motion request indicative of a desired positive longitudinal tire force to be generated by the torque generating MSD, obtains an estimated applied torque indicative of a current torque generated by the torque generating MSD, determines a target wheel speed based on the motion request and on the estimated applied torque, and configures the torque generating MSD to maintain the target wheel speed. The control unit is arranged to decrease the target wheel speed in case an increase in configured wheel speed results in a decrease in the estimated applied torque.

    ENERGY EFFICIENT PROPULSION BASED ON WHEEL SLIP BALANCED DRIVE

    公开(公告)号:US20240383339A1

    公开(公告)日:2024-11-21

    申请号:US18564898

    申请日:2021-06-01

    Abstract: A vehicle control unit arranged to control motion of a heavy-duty vehicle comprising first and second electric machine (EM) arrangements, wherein the vehicle control unit is arranged to control the first and second EM arrangement by transmitting wheel slip requests to respective EM control units, wherein the control unit is arranged to obtain a desired total longitudinal force to be jointly generated by the first and second EM arrangements, wherein the control unit is arranged to determine a desired first wheel slip corresponding to a first longitudinal force generated by the first EM arrangement, and a desired second wheel slip corresponding to a second longitudinal force generated by the second EM arrangement, wherein the control unit is arranged to balance a magnitude of the first wheel slip relative to a magnitude of the second wheel slip in dependence of the efficiency characteristics of the first and second EM arrangements.

    RADAR-BASED WHEEL END MODULES FOR DETERMINING WHEEL FORCE GENERATING CAPABILITY

    公开(公告)号:US20240367636A1

    公开(公告)日:2024-11-07

    申请号:US18640504

    申请日:2024-04-19

    Abstract: A wheel end module for a heavy-duty vehicle includes a processing device, a radar module arrange to transmit a radar signal towards a surface supporting the vehicle and to receive backscatter from the radar signal, and a load sensing arrangement. The processing device determines a parameter related to a normal force associated with at least one wheel of the heavy-duty vehicle by the load sensing arrangement, determines a parameter related to a friction coefficient of the surface by the radar module. The processing device determines a wheel force generating capability of the at least one wheel, based on the normal force related parameter and on the friction coefficient related parameter. The wheel end module outputs the wheel force generating capability on an output interface of the wheel end module.

    DIGITAL TWIN AND A METHOD FOR MODELLING CONNECTIVITY OF A HEAVY-DUTY VEHICLE

    公开(公告)号:US20230327791A1

    公开(公告)日:2023-10-12

    申请号:US18172514

    申请日:2023-02-22

    CPC classification number: H04B17/3913

    Abstract: A method is performed by a digital twin for modelling connectivity of a heavy-duty vehicle. The digital twin comprises a digital model of the heavy-duty vehicle. The digital twin is configured to access another digital model of one or more communication networks in which the heavy-duty vehicle is expected to operate. The digital twin models an expected degree of connectivity of the heavy-duty vehicle to at least one of the one or more communication networks. The modelling is in dependence of at least one of: a vehicle state and vehicle connectivity system(s) onboard the heavy-duty vehicle.

    SYSTEMS FOR DETERMINING VEHICLE SPEED OVER GROUND

    公开(公告)号:US20250147163A1

    公开(公告)日:2025-05-08

    申请号:US18837075

    申请日:2022-02-24

    Inventor: Mats RYDSTRÖM

    Abstract: A system for determining a wheel slip λ of a wheel on a heavy-duty vehicle is provided. The system comprises at least two antenna elements separated by a distance, a first processing unit arranged to receive a radio signal via the at least two antenna elements, to correlate the received radio signals against each other and to determine a speed over ground of the vehicle based on the correlation of the received radio signals. The system also comprises a wheel speed sensor arranged to determine a rotational velocity of the wheel, and a second processing unit arranged to determine the wheel slip of the wheel based on the rotational velocity of the wheel and on the speed over ground of the vehicle.

    INVERSE TYRE MODEL ADAPTATION BASED ON TYRE THREAD DEFLECTION SENSOR OUTPUT DATA

    公开(公告)号:US20250026325A1

    公开(公告)日:2025-01-23

    申请号:US18714882

    申请日:2021-12-01

    Abstract: A control unit for controlling a heavy-duty vehicle is arranged to obtain an initial inverse tire model configured to represent a preliminary relationship between wheel slip and generated longitudinal wheel force for at least one wheel of the heavy-duty vehicle. The control unit obtains data from a tire thread deflection sensor configured to measure an amount of tire thread deflection associated with the at least one wheel, and an amount of wheel slip of the at least one wheel corresponding to the amount of tire thread deflection. The control unit updates the obtained initial inverse tire model based on the amount of tire thread deflection and on the corresponding amount of wheel slip. The control unit controls the heavy-duty vehicle by configuring a target wheel speed or a target wheel slip of the at least one wheel based on the updated inverse tire model to generate a target longitudinal wheel force.

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