Transitioning steering control from an autonomous vehicle to a driver

    公开(公告)号:US12179805B2

    公开(公告)日:2024-12-31

    申请号:US18176714

    申请日:2023-03-01

    Applicant: TuSimple, Inc.

    Abstract: Techniques are described for transitioning control of a steering system from an autonomous mode in a vehicle to a driver-controlled mode where the driver can control the steering wheel of the steering system. A method includes receiving values that describe an amount of torque and a direction of torque in response to a torque applied to a steering wheel of a steering system operated in an autonomous mode, determining that the values are either greater than or equal to a threshold value or are less than or equal to a negative of the threshold value, determining that the values are measured over a period of time greater than or equal to a pre-determined amount of time, and transitioning the steering system from being operated in the autonomous mode to being operated in a driver-controlled mode in which the steering system is under manual control.

    Managing redundant steering system for autonomous vehicles

    公开(公告)号:US12049270B2

    公开(公告)日:2024-07-30

    申请号:US18157204

    申请日:2023-01-20

    Applicant: TuSimple, Inc.

    CPC classification number: B62D6/00 B62D5/0409 B62D5/0421 B62D5/0463 G05D1/0088

    Abstract: Techniques are described for managing redundant steering system for a vehicle. A method includes sending a first control command that instructs a first motor coupled to a steering wheel in a steering system to steer a vehicle, receiving, after sending the first control command, a speed of the vehicle, a yaw rate of the vehicle, and a steering position of the steering wheel, determining, based at least on the speed and the yaw rate, an expected range of steering angles that describes values within which the first motor is expected to steer the vehicle based on the first control command, and upon determining that the steering position of a steering wheel is outside the expected range of steering angles, sending a second control command that instructs a second motor coupled to the steering wheel in the steering system to steer the vehicle.

    Adaptive illumination system for an autonomous vehicle

    公开(公告)号:US11865967B2

    公开(公告)日:2024-01-09

    申请号:US18149901

    申请日:2023-01-04

    Applicant: TuSimple, Inc.

    CPC classification number: B60Q1/143 B60Q2300/054 B60Q2300/42 G06V20/58

    Abstract: A system comprises a headlight mounted on an autonomous vehicle. The headlight is configured to illuminate at least a portion of a road the autonomous vehicle is on. The system further comprises a control device associated with the autonomous vehicle. The processor obtains information about an environment around the autonomous vehicle. The processor determines that at least a portion of the road should be illuminated if the information indicates that an illumination level of the portion of the road is less than a threshold illumination level. The processor adjusts the headlight to illuminate at least the portion of the road in response to determining that at least the portion of the road should be illuminated.

    Operational testing of autonomous vehicles

    公开(公告)号:US11740620B2

    公开(公告)日:2023-08-29

    申请号:US17515366

    申请日:2021-10-29

    Applicant: TUSIMPLE, INC.

    CPC classification number: G05B23/0254 G05D1/0088

    Abstract: Disclosed are devices, systems and methods for the operational testing on autonomous vehicles. One exemplary method includes configuring a primary vehicular model with an algorithm, calculating one or more trajectories for each of one or more secondary vehicular models that exclude the algorithm, configuring the one or more secondary vehicular models with a corresponding trajectory of the one or more trajectories, generating an updated algorithm based on running a simulation of the primary vehicular model interacting with the one or more secondary vehicular models that conform to the corresponding trajectory in the simulation, and integrating the updated algorithm into an algorithmic unit of the autonomous vehicle.

    Vehicle weight distribution determination

    公开(公告)号:US11441937B2

    公开(公告)日:2022-09-13

    申请号:US16989623

    申请日:2020-08-10

    Applicant: TUSIMPLE, INC.

    Abstract: Techniques are described for determining weight distribution of a vehicle. A method of performing autonomous driving operation includes receiving two sets of values from two sets of sensors, where a first set of sensors measure weights or pressures applied on axles of a vehicle, and where a second set of sensors measure pressures in tires of the vehicle. The method performs an error detection and removal operation to remove or filter out any erroneous values from the two sets of values to obtain two sets of filtered values. The method determines one or more values that describe a weight or pressure applied on the axle to obtain the weight distribution of the vehicle based on the first set of filtered values or the second set of filtered values. Based on the obtained weight distribution of the vehicle, the method can determine a driving operation of the vehicle.

    Vehicle camera calibration system
    17.
    发明授权

    公开(公告)号:US11359932B2

    公开(公告)日:2022-06-14

    申请号:US17082551

    申请日:2020-10-28

    Applicant: TUSIMPLE, INC.

    Abstract: Technique for performing camera calibration on a vehicle is disclosed. A method of performing camera calibration includes emitting, by a laser emitter located on a vehicle and pointed towards a road, a first laser pulse group towards a first location on a road and a second laser pulse group towards a second location on the road, where each laser pulse group includes one or more laser spots. For each laser pulse group: a first set of distances are calculated from a location of a laser receiver to the one or more laser spots, and a second set of distances are determined from an image obtained from a camera, where the second set of distances are from a location of the camera to the one or more laser spots. The method also includes determining two camera calibration parameters of the camera by solving two equations.

    Method, apparatus, and system for multi-module scheduling

    公开(公告)号:US11055144B2

    公开(公告)日:2021-07-06

    申请号:US16276084

    申请日:2019-02-14

    Applicant: TuSimple, Inc.

    Abstract: The present disclosure provides a method, an apparatus and a system for multi-module scheduling, capable of solving the problem associated with inconsistency in data inputted to a computing module in the multi-module scheduling technique in the related art. The method includes: reading, by a master process, a pre-stored configuration file storing a directed computation graph; initializing, by the master process, states of all the nodes and connecting edges in the directed computation graph initially in computation in a current computing period; determining a node to be called based on the computation direction in the directed computation graph and the states of the nodes, the node to be called comprising a node having all of its input edges in a complete state; transmitting, to the computing module in the slave process corresponding to the node to be called, a call request of Remote Process Call (RPC) to execute the computing module; updating the state of the node and the state of each output edge of the node upon receiving a response to the call request; and proceeding with a next computing period upon determining that the states of all the nodes have been updated.

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