Suspension control apparatus
    1.
    发明授权

    公开(公告)号:US12083845B2

    公开(公告)日:2024-09-10

    申请号:US16982219

    申请日:2018-09-21

    IPC分类号: B60G17/0165 B60G17/019

    摘要: A suspension control apparatus includes a control device configured to control a damping characteristic of each of damping force adjustable shock absorbers. The control device includes an external force calculation portion configured to calculate a total external force working on a vehicle body based on a physical amount output from a physical amount extraction portion, an operation force calculation portion configured to calculate an operation-derived force applied to each of the damping force adjustable shock absorbers according to a load movement due to an operation on the vehicle, and a vehicle behavior extraction portion configured to determine an external force derived from a road surface input by separating the operation-derived force calculated by the operation force calculation portion from the total external force calculated by the external force calculation portion.

    PREVIEW ROAD SURFACE DETECTOR, SUSPENSION CONTROLLER, AND PREVIEW ROAD SURFACE DETECTION METHOD

    公开(公告)号:US20240109387A1

    公开(公告)日:2024-04-04

    申请号:US18474237

    申请日:2023-09-26

    IPC分类号: B60G17/019

    摘要: A preview road surface detector capable of discontinuing predictive control is provided, which suppresses the energy consumption required to determine whether predictive control should be discontinued. The preview road surface detector includes: a distance sensor provided on a vehicle body member, the distance sensor detecting a value related to a distance between the vehicle body member and a measurement point on a road surface ahead of a vehicle, the measurement point corresponding to at least part of a road surface contact portion of a wheel; and a distance calculator that calculates a road surface distance as the distance from the vehicle body member to the measurement point, based on a detection value detected by the distance sensor, in which the distance sensor is deactivated under a predetermined condition.

    Electrically powered suspension system

    公开(公告)号:US11932070B2

    公开(公告)日:2024-03-19

    申请号:US17680673

    申请日:2022-02-25

    摘要: An electrically powered suspension system includes: an actuator that is provided between a vehicle body and a wheel of a vehicle and generates a load for damping vibration of the vehicle body; an information acquisition part that acquires information on a sprung state amount and a road surface state; a target load calculation part that calculates a first target load related to skyhook control based on the sprung state amount and calculates a second target load related to preview control based on the road surface state; and a load control part. The target load calculation part calculates a third target load related to roll generation control based on a target roll angle and calculates a combined target load into which the first target load, second target load, and third target load have been combined. The load control part performs load control of the actuator using the combined target load.

    LIFT AXLE CONTROL METHOD AND SYSTEM FOR VEHICLE

    公开(公告)号:US20240010284A1

    公开(公告)日:2024-01-11

    申请号:US18247181

    申请日:2021-07-29

    IPC分类号: B62D61/12 B60G17/015

    摘要: Disclosed in the present disclosure are a lift axle control method for a vehicle and a lift axle control system for a vehicle, wherein the method comprises the following steps: step 1) acquiring a load M of the vehicle; step 2) judging whether it needs to lower the lift axle according to the load, and if so, controlling the vehicle to lower the lift axle, and entering into step 3); otherwise, returning to step 1); step 3) calculating an optimal position of lifting the lift axle, controlling the vehicle to lift the lift axle at the optimal position, and entering into step 4); step 4) calculating an optimal position to lower the lift axle, controlling the vehicle to lower the lift axle at the optimal position, and then returning to step 3). The method of the present disclosure can reduce the damage to the road surface and achieve the economy of fuel consumption during running of the vehicle.

    ROLL CONTROL SYSTEM FOR CORNER MODULE OF VEHICLE

    公开(公告)号:US20230278384A1

    公开(公告)日:2023-09-07

    申请号:US17993128

    申请日:2022-11-23

    IPC分类号: B60G17/016 B60G17/015

    摘要: The present disclosure includes a knuckle unit coupled to a strut, positioned inside a wheel, and moving in upward and downward directions along a pair of sliding pillars supported by a fixing frame, a stopper unit configured to selectively move in a downward direction on the sliding pillar and limit a range that the knuckle unit moves in the upward and downward directions, a power transmission unit connected to the sliding pillar and configured to transmit power for moving the stopper unit in the downward direction, a clutch unit connected to the power transmission unit and transmitting a rotational force to the power transmission unit as a control motor is driven, and a control unit electrically connected to the control motor and transmitting a power transmission signal to the control motor to control the stopper unit to selectively move in the upward and downward directions.

    System and method for controlling vehicle

    公开(公告)号:US11718139B2

    公开(公告)日:2023-08-08

    申请号:US17495037

    申请日:2021-10-06

    摘要: A system and method for controlling a vehicle, where the system includes independent driving modules each including a connection device having a rotation center spaced apart from a driving shaft in a forward/rearward direction and configured to connect the wheel and a vehicle body to move the wheel in the forward/rearward or an upward/downward direction, a shock absorber extending in a longitudinal direction and configured to contract or stretch, to connect the vehicle body and the connection device, and to restrict an upward/downward movement of the connection device, and a driving device configured to rotate the wheel, a road surface detector configured to detect a height displacement or a state of a road, and a controller configured to control velocities of the front and rear wheels of the independent driving modules, and to change a height of the vehicle based on the height displacement or the state of the road.

    SUSPENSION CONTROL DEVICE FOR VEHICLE

    公开(公告)号:US20170100980A1

    公开(公告)日:2017-04-13

    申请号:US15281194

    申请日:2016-09-30

    发明人: Taishi TSUDA

    IPC分类号: B60G17/0165 B60G17/016

    摘要: A suspension control device includes an actuator configured to change an up/down stroke of a suspension, a front sensor, and a control device configured to estimate a displacement in a vertical direction of a road surface based on a detection result of the front sensor, thereby controlling the actuator. When the control device determines that a step portion in which a wheel comes into contact with two points of the road surface viewed in a direction along a rotational axis of the wheel exists ahead of a vehicle, the control device controls a force generated by the actuator so that, when the wheel comes into contact with the two points, the wheel rolls about the point without substantially pressing the point toward the travel direction of the vehicle.