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    METHOD FOR CONTROLLING A SPEED OF A VEHICLE, CONTROL UNIT, COMPUTER PROGRAM PRODUCT, NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM, BRAKE SYSTEM, AND VEHICLE
    40.
    发明公开
    METHOD FOR CONTROLLING A SPEED OF A VEHICLE, CONTROL UNIT, COMPUTER PROGRAM PRODUCT, NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM, BRAKE SYSTEM, AND VEHICLE 审中-实审

    公开(公告)号：EP4397549A1

    公开(公告)日：2024-07-10

    申请号：EP23150550.4

    申请日：2023-01-06

    Applicant: Volvo Construction Equipment AB

    Inventor： Dusemund, Björn ,  Sanal Kumar, Krishnent ,  Weidke, Tim

    IPC: B60T7/12 ,  B60W30/14

    CPC classification number: B60W30/146 ,  B60T7/12 ,  B60W2520/1020130101 ,  B60W2520/10520130101 ,  B60W2530/1020130101 ,  B60W2720/1020130101 ,  B60W2720/10620130101 ,  B60W2710/1820130101 ,  B60W2540/1220130101 ,  B60W2556/5020200201

    Abstract: A method (1000) for controlling a speed of a vehicle (1), in particular of a working machine such as a wheel loader (1), depending on a determined actual driving condition of the vehicle (1), the vehicle (1) comprising: a drive unit (2) that is coupled to at least one wheel (3) of the vehicle (1), wherein the drive unit (2) is configured for driving and braking the at least one wheel (3) of the vehicle (1), wherein the drive unit (2) is configured for braking by providing a motor braking torque, and a sensor unit (4) that is configured for detecting an actual speed value of the vehicle (1), and a brake system (5) that is coupled to at least one wheel (3) of the vehicle (1), wherein the brake system (5) is configured for braking the at least one wheel (3) of the vehicle (1), and a control unit (6) that is signalling coupled with the sensor unit (4), the drive unit (2), and the brake system (5), wherein the control unit (6) is configured for controlling the speed of the vehicle (1), the method (1000) comprising the steps: determining (1010) the actual speed value of the vehicle (1) provided by means of the sensor unit (4), and determining (1020) a maximum speed value and determining a critical speed value, wherein the critical speed value is larger than the maximum speed value, and determining (1030) the actual driving condition of the vehicle (1), wherein the driving condition is at least one of the following: an over speed driving condition if the determined actual speed value is larger than the determined maximum speed value and smaller than the determined critical speed value, an acceleration driving condition if the vehicle (1) is accelerated and the determined actual speed value is smaller than the determined maximum speed value, a regular driving condition if the vehicle (1) is not accelerated and the determined actual speed value is smaller than the determined maximum speed value, determining (1040) a target speed value of the vehicle (1) that is smaller than the determined maximum speed value, and wherein if the driving condition is determined as the over speed driving condition, the method (1000) comprising the steps of determining (1050) a speed braking signal value for actuating the friction braking unit depending on the determined target speed value, and providing (1060) the speed braking signal value to the brake system (5) for actuating the friction braking unit.

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