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 CONTROL METHOD, VEHICLE, STORAGE MEDIUM AND CHIP

    公开(公告)号:US20240317193A1

    公开(公告)日:2024-09-26

    申请号:US18426753

    申请日:2024-01-30

    发明人: Wenhao Gu

    IPC分类号: B60T8/171 B60T8/88

    摘要: A brake control method, which is applied to a vehicle, and includes: determining abnormal conditions of a primary brake unit and a backup brake unit; determining a vehicle control strategy according to the abnormal condition; controlling rear wheels to be in a free-rolling state in the case that the vehicle control strategy corresponds to a first abnormal condition; and performing, by the primary brake unit, braking according to first wheel speed information collected by a first wheel speed sensor and first axle speed information of a rear axle motor, or according to the first wheel speed information, the first axle speed information and second axle speed information of a front axle motor in response to a braking request.

    BRAKE APPARATUS AND METHOD OF CONTROLLING THE SAME

    公开(公告)号:US20240278753A1

    公开(公告)日:2024-08-22

    申请号:US18380159

    申请日:2023-10-14

    发明人: Byoungjin PARK

    IPC分类号: B60T8/175 B60T8/171 B60T8/88

    摘要: A brake apparatus includes a brake configured to provide a braking torque to first and second wheels of a vehicle, and a processor configured to identify a driving torque of the vehicle based on an output of an engine of the vehicle, identify a reference driving torque based on a longitudinal acceleration of the vehicle, identify a spin of at least one wheel of the first and second wheels based on determination that the driving torque identified based on the output of the engine of the vehicle is greater than the reference driving torque identified based on the longitudinal acceleration of the vehicle, and control the brake to provide the braking torque to the at least one 10 wheel in response to the identified spin of at least one wheel of the first and second wheels.

    Wheel speed sensor interface circuit, operation method thereof, and electronic control system

    公开(公告)号:US12024149B2

    公开(公告)日:2024-07-02

    申请号:US17274327

    申请日:2019-09-06

    IPC分类号: B60T8/88 G01R19/165 G01R31/00

    摘要: The present disclosure provides a wheel speed sensor interface circuit, an operation method thereof, and an electronic control system, the wheel speed sensor interface circuit comprising: a first signal processing unit for receiving a first current signal sensed by a high side of a wheel speed sensor and processing the first current signal to output a first voltage signal; a second signal processing unit for receiving a second current signal sensed by a low side of the wheel speed sensor and processing the second current signal to output a second voltage signal; and a verification unit for comparing the first voltage signal and the second voltage signal with each other and verifying whether the first voltage signal and the second voltage signal are normal. According to the present disclosure, reliability and redundancy for a process of transmitting wheel speed information can be secured.

    Hybrid brake systems and methods
    10.
    发明授权

    公开(公告)号:US11999468B2

    公开(公告)日:2024-06-04

    申请号:US17668987

    申请日:2022-02-10

    摘要: A braking system for an aircraft is disclosed herein. The braking system may comprise: a brake assembly; a hydraulic braking subsystem having a hydraulic brake actuator configured to operate the brake assembly; an electric braking subsystem and a hydraulic braking subsystem. During a flight, one of the electric braking subsystem and the hydraulic braking subsystem may be selected as a primary braking system. The braking system may be configured to command braking of a brake assembly by the hydraulic braking subsystem and the electric braking subsystem during an RTO phase of the flight. The braking system may be configured to command braking of a brake assembly by a secondary braking system in response to a failure of a primary braking system during the RTO phase of the flight.