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.

    Torque control for a hybrid or electric vehicle

    公开(公告)号:US11975612B2

    公开(公告)日:2024-05-07

    申请号:US17032456

    申请日:2020-09-25

    CPC classification number: B60L15/10 B60C11/246 B60K1/02 B60L3/106 B60L15/2036

    Abstract: A vehicle includes a first wheel, a second wheel, and a controller. The first and second of wheels have first and second tires, respectively. The controller is programmed to receive inputs indicative of tire tread wear of the first and second wheels. The controller is further programmed to, in response to a command to adjust torques of the first and second wheels to first and second desired torque values, respectively, and a difference between a tire tread wear of the first wheel and a tire tread wear of the second wheel exceeding a threshold, adjust the torque of the first electric machine to less than the first desired torque value and adjust the torque of the second electric machine to greater than the second desired torque value.

    CONTROL DEVICE FOR VEHICLE
    7.
    发明公开

    公开(公告)号:US20230322089A1

    公开(公告)日:2023-10-12

    申请号:US18023854

    申请日:2021-09-24

    Abstract: A control device (10) for a vehicle (1) equipped with two electric motors (2) includes: a first calculation unit (11) that calculates a required torque value of each of left and right axles (4L, 4R); a second calculation unit (12) that calculates an equivalent moment of inertia of each of the left and right axles (4L, 4R); a third calculation unit (13) that calculates an estimated angular acceleration of each of left and right wheels (5) based on the two required torque values calculated by the first calculation unit (11) and the two equivalent moments of inertia calculated by the second calculation unit (12); and a determination unit (14) that compares actual angular accelerations of the left and right wheels (5) with the estimated angular accelerations calculated by the third calculation unit (13) to perform off-ground determination for each of the left and right wheels (5).

    VEHICLE CONTROL DEVICE
    9.
    发明公开

    公开(公告)号:US20230191913A1

    公开(公告)日:2023-06-22

    申请号:US17955761

    申请日:2022-09-29

    Inventor: Kazumasa SHIMODE

    Abstract: In a vehicle control device provided in a vehicle including a motor configured to apply a regenerative braking force to a wheel, a braking force controlling portion controls torque of the motor such that the motor generates a regenerative braking force corresponding to a requested braking force requested to the vehicle. When the wheel locks during braking, the braking force controlling portion executes an antilock control in which the torque of the motor is controlled such that the lock of the wheel is restrained. An acquisition portion acquires the deceleration speed of the vehicle. A derivation portion derives an expected deceleration speed for the vehicle based on the requested braking force. In a case where the braking force controlling portion executes the antilock control, the braking force controlling portion controls vibration of the motor based on the difference between the expected deceleration speed and the deceleration speed.

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