REDUNDANT BRAKE AND BRAKE FAILOVER FOR AUTONOMOUS VEHICLES

    公开(公告)号:US20240317197A1

    公开(公告)日:2024-09-26

    申请号:US18188151

    申请日:2023-03-22

    申请人: PlusAI, Inc.

    IPC分类号: B60T8/88

    摘要: Techniques are described for determining failover to a redundant braking system. An example method can include a system determining a fault occurring in a braking system of an autonomous vehicle (AV) operating in an autonomous mode, the braking system comprising a first braking system and a second braking system, the fault occurring in at least one of the first braking system and the second braking system, and the AV using the first braking system. The system can further determine whether to switch from using the first braking system based at least in part on determining the fault. The system can further transmit to an alert system of the AV, a request to generate an alert for manual control of the AV based at least in part on determining the fault. The system can further deactivate the autonomous mode of the AV based at least in part on determining the fault.

    Braking unit
    4.
    发明授权

    公开(公告)号:US12091162B2

    公开(公告)日:2024-09-17

    申请号:US17738090

    申请日:2022-05-06

    发明人: Colin R. Harrison

    IPC分类号: B64C25/46 B60T8/17

    摘要: A braking unit includes a braking means and means, configured to receive power from a power line, for engaging and disengaging the braking means. A first power signal line is provided that is connected to the means for engaging and disengaging said braking means and a second power signal line is also provided that is connected to said means for engaging and disengaging said braking means. The first power signal line is connected to the means for engaging and disengaging the braking means via a first power switching device and the second power signal line is connected to the means for engaging and disengaging the braking means via a second power switching device.

    ELECTROMECHANICAL BRAKE SYSTEM AND CONTROL METHOD THEREOF

    公开(公告)号:US20240278754A1

    公开(公告)日:2024-08-22

    申请号:US18228670

    申请日:2023-07-31

    发明人: Seongnam KIM

    IPC分类号: B60T8/1755 B60T17/22

    摘要: Disclosed herein are an electromechanical brake system and a control method thereof. In accordance with one aspect of the present disclosure, there is provided an electromechanical brake system including electromechanical brakes respectively provided on four wheels of a vehicle, a sensor part that outputs a signal which corresponds to or is capable of estimating whether each of the electromechanical brakes is normal and a driver demand braking torque generated based on the speed and lateral acceleration of the vehicle and a brake pedal operation of a driver, and a controller that estimates a demand braking torque based on the signal received from the sensor part and determines whether the electromechanical brakes are normal, wherein the controller performs a braking control as much as the demand braking torque based on the determination that the electromechanical brakes are normal, and performs a braking control by distributing, within a range of the demand braking torque, braking torques based on the lateral acceleration of the vehicle to the respective other electromechanical brakes except the electromechanical brake determined to malfunction based on the determination that there is a malfunction of any one among the electromechanical brakes.

    BRAKE DEVICE FOR VEHICLE
    8.
    发明公开

    公开(公告)号:US20240262334A1

    公开(公告)日:2024-08-08

    申请号:US18462048

    申请日:2023-09-06

    发明人: Seung Hyun YUN

    IPC分类号: B60T13/74 B60T13/62 G05G5/03

    摘要: The present disclosure relates to a brake device for a vehicle, the brake device including a housing part, a gear part rotatably disposed in the housing part and configured to be rotated by receiving a rotational force of a motor, a motion conversion part installed inside the housing part, coupled to the gear part, and configured to convert a rotational motion of the gear part into a rectilinear motion, a piston part coupled to the motion conversion part and configured to be rectilinearly movable, a master cylinder part coupled to a first side of the housing part and configured such that the piston part is inserted into the master cylinder part to generate hydraulic pressure, and a pedal simulator part slidably disposed at a second side of the housing part and coupled to the motion conversion part.

    BRAKE SYSTEM WITH REDUNDANT COMPONENTS
    10.
    发明公开

    公开(公告)号:US20240217496A1

    公开(公告)日:2024-07-04

    申请号:US18093056

    申请日:2023-01-04

    发明人: Blaise J. Ganzel

    IPC分类号: B60T13/66

    CPC分类号: B60T13/662 B60T2270/402

    摘要: A brake system includes a power transmission unit with a first electric motor. An iso/dump control valve arrangement is associated with each wheel brake of first and second pairs of wheel brakes. At least two pump pistons are provided, each pump piston being associated with at least one wheel brake. The at least two pump pistons are driven by a second electric motor for selectively providing pressurized hydraulic fluid to the iso/dump control valve arrangement of the at least one associated wheel brake in at least a backup braking mode. A dual lane electronic control unit is provided for controlling the first electric motor. The dual lane electronic control unit includes first and second ECU lanes. A single lane electronic control unit is provided for controlling the second electric motor.