公开(公告)号：US20230211788A1

公开(公告)日：2023-07-06

申请号：US18184560

申请日：2023-03-15

Applicant: TUSIMPLE, INC.

Inventor： Kun ZHANG ,  Xiaoling HAN ,  Weina MAO ,  Zehua HUANG ,  Charles A. PRICE

IPC: B60W40/068 ,  B60W10/18 ,  B60W30/14

CPC classification number: B60W40/068 ,  B60W10/18 ,  B60W30/146 ,  B60W2520/105 ,  B60W2555/20 ,  B60W2510/182

Abstract: Techniques are described for estimating road friction between a road and tires of a vehicle. A method includes receiving, from a temperature sensor on a vehicle, a temperature value that indicates a temperature of an environment in which a vehicle is operated, determining a first range of friction values that quantify a friction between a road and tires of a vehicle based on a function of the temperature value and an extent of precipitation in a region that indicate a hazardous driving condition, obtaining, from the first range of friction values, a value that quantifies the friction between the road and the tires of the vehicle, where the value is obtained based on a driving related behavior of the vehicle, and causing the vehicle to operate on the road based on the value obtained from the first range of friction values.

公开(公告)号：US20230161014A1

公开(公告)日：2023-05-25

申请号：US17986772

申请日：2022-11-14

Applicant: TuSimple, Inc.

Inventor： Yue PAN ,  Zhiqi GONG ,  Xiaoling HAN

IPC: G01S7/487 ,  G01S17/42 ,  G01S17/86 ,  G06T7/73

CPC classification number: G01S7/4876 ,  G01S17/42 ,  G01S17/86 ,  G06T7/73 ,  G06T2207/10028 ,  G06T2207/30244 ,  G06T2207/30252

Abstract: Techniques are described for reducing the memory load associated with point cloud data. An example method includes transmitting a light pulse, detecting, by a light detector, a plurality of returns of the light pulse, producing a point cloud comprising a plurality of points associated with the plurality of returns, and generating a reduced set of points associated with the plurality of returns by removing a subset of the plurality of points from the point cloud. The reduced set of points can then be used by autonomous vehicle systems to efficiently map a surrounding environment without significantly reducing accuracy.

公开(公告)号：US20230027572A1

公开(公告)日：2023-01-26

申请号：US17383190

申请日：2021-07-22

Applicant: TUSIMPLE, INC.

Inventor： Mohamed Hassan Ahmed Hassan WAHBA ,  Yu-Ju HSU ,  Zehua HUANG ,  Xiaoling HAN

IPC: B60W50/029 ,  B60W50/02 ,  B60W60/00 ,  B60W10/20 ,  B60W10/18

Abstract: Techniques are described to enable a vehicle, such as an autonomous vehicle, to steer and/or apply brakes on a road when a failure condition occurs. An example method for autonomous driving operation includes receiving a reduced set of location information that describes a location of the autonomous vehicle on a road; receiving a reduced set of trajectory information where the autonomous vehicle is expected to be driven; determining a driving path information where the autonomous vehicle is expected to be driven; and in response to determining an occurrence of a fault condition: sending a first instruction to cause the autonomous vehicle to steer the autonomous vehicle using at least the driving path information and the reduced set of location information, and sending a second instruction to cause the autonomous vehicle to apply brakes.

公开(公告)号：US20220242425A1

公开(公告)日：2022-08-04

申请号：US17722110

申请日：2022-04-15

Applicant: TUSIMPLE, INC.

Inventor： Lindong SUN ,  Liu LIU ,  Xiaoling HAN ,  Yi WANG ,  Ruiliang ZHANG

IPC: B60W50/02 ,  G05D1/00 ,  G07C5/00 ,  G07C5/08 ,  G05D1/02 ,  G05B23/00

Abstract: Disclosed are devices, systems and methods for a monitoring system for autonomous vehicle operation. In some embodiments, a vehicle may perform self-tests, generate a report based on the results, and transmit it to a remote monitor center over one or both of a high-speed channel for regular data transfers or a reliable channel for emergency situations. In other embodiments, the remote monitor center may determine that immediate intervention is required, and may transmit a control command with high priority, which when received by the vehicle, is implemented and overrides any local commands being processed. In yet other embodiments, the control command with high priority is selected from a small group of predetermined control commands the remote monitor center may issue.

公开(公告)号：US20220182213A1

公开(公告)日：2022-06-09

申请号：US17186476

申请日：2021-02-26

Applicant: TUSIMPLE, INC. ,  BEIJING TUSEN ZHITU TECHNOLOGY CO., LTD.

Inventor： Xiaoling HAN ,  Junjun XIN ,  Lei NIE ,  Yue PAN ,  Yu ZHANG ,  Jade E. DAY ,  Zehua HUANG ,  Esayas NAIZGHI ,  Pingyuan JI ,  Zhiqi GONG

IPC: H04L7/00 ,  H04L29/08 ,  G01C21/28 ,  G01S17/931 ,  G01C21/16 ,  G01S19/01

Abstract: Devices, systems, and methods for hardware-based time synchronization for heterogenous sensors are described. An example method includes generating a plurality of input trigger pulses having a nominal pulse-per-second (PPS) rate, generating, based on timing information derived from the plurality of input trigger pulses, a plurality of output trigger pulses, and transmitting the plurality of output trigger pulses to a sensor of a plurality of sensors, wherein a frequency of the plurality of output trigger pulses corresponds to a target operating frequency of the sensor, wherein, in a case that a navigation system coupled to the synchronization unit is functioning correctly, the plurality of input trigger pulses is generated based on a nominal PPS signal from the navigation unit, and wherein, in a case that the navigation system is not functioning correctly, the plurality of input trigger pulses is generated based on a simulated clock source of the synchronization unit.

公开(公告)号：US20220126845A1

公开(公告)日：2022-04-28

申请号：US17080330

申请日：2020-10-26

Applicant: TUSIMPLE, INC.

Inventor： Yu-Ju HSU ,  Xiaoling HAN

IPC: B60W50/023 ,  B60W50/02 ,  B60W10/18 ,  B60L7/26

Abstract: Devices, systems, and methods for redundant braking systems and architectures are described. An example method for controlling a vehicle includes receiving, by a braking system, a first set of commands generated by a primary brake controller and a primary vehicle control unit (VCU) comprising multiple processors, receiving a second set of commands generated by the primary VCU and a secondary brake controller, receiving a third set of commands generated by a secondary VCU and the primary brake controller, receiving a fourth set of commands generated by the secondary VCU and the secondary brake controller, and selecting, based on an arbitration logic, exactly one of the first, second, third, and fourth sets of commands to operate the braking system, wherein the primary VCU and the secondary VCU are configured in a master/slave architecture.

公开(公告)号：US20210402988A1

公开(公告)日：2021-12-30

申请号：US17361279

申请日：2021-06-28

Applicant: TUSIMPLE, INC.

Inventor： Kun ZHANG ,  Xiaoling HAN ,  Zehua HUANG ,  Charles A. Price

IPC: B60W30/06 ,  G05D1/02 ,  G06K9/00

Abstract: The disclosed technology enables automated parking of an autonomous vehicle. An example method of performing automated parking for a vehicle comprises obtaining, from a plurality of global positioning system (GPS) devices located on or in an autonomous vehicle, a first set of location information that describes locations of multiple points on the autonomous vehicle, where the first set of location information are associated with a first position of the autonomous vehicle, determining, based on the first set of location information and a location of the parking area, a trajectory information that describes a trajectory for the autonomous vehicle to be driven from the first position of the autonomous vehicle to a parking area, and causing the autonomous vehicle to be driven along the trajectory to the parking area by causing operation of one or more devices located in the autonomous vehicle based on at least the trajectory information.

公开(公告)号：US20210243913A1

公开(公告)日：2021-08-05

申请号：US16781966

申请日：2020-02-04

Applicant: TUSIMPLE, INC.

Inventor： Kaixin ZHENG ,  Xiaoling HAN ,  Zehua HUANG ,  Todd SKINNER

IPC: H05K7/20 ,  G05D1/00 ,  B60R16/03

Abstract: Techniques are described for managing temperature in an autonomous vehicle. An exemplary method comprises performing autonomous driving operations that operate the autonomous vehicle in an autonomous mode, receiving one or more messages from a temperature sensor associated with an electrical device located on or in the autonomous vehicle while the autonomous vehicle is operated in the autonomous mode, determining a cooling technique to reduce the temperature of electrical device, and performing the cooling technique.

公开(公告)号：US20200086884A1

公开(公告)日：2020-03-19

申请号：US16569640

申请日：2019-09-12

Applicant: TuSimple

Inventor： Yi WANG ,  Lindong SUN ,  Liu LIU ,  Xiaoling HAN ,  Ruiliang ZHANG

IPC: B60W50/02 ,  B60W30/08 ,  B60W30/18 ,  G07C5/08 ,  G05D1/00

Abstract: Disclosed are devices, systems and methods for remote safe driving. One exemplary method includes detecting an emergency situation, and in response to the detecting the emergency situation, switching operation of the vehicle to a low-power operation mode that comprises shutting down a subset of vehicular components, and periodically transmitting a location of the vehicle to a remote monitoring center. Another exemplary method includes selecting at least one of a set of vehicular driving actions, and transmitting, over a secure connection, the at least one of the set of vehicular driving actions to the vehicle, wherein the set of vehicular driving actions is generated based on a classification of driver behavior.

公开(公告)号：US20190210613A1

公开(公告)日：2019-07-11

申请号：US16245621

申请日：2019-01-11

Applicant: TuSimple

Inventor： Lindong SUN ,  Liu LIU ,  Xiaoling HAN ,  Yi WANG ,  Ruiliang ZHANG

IPC: B60W50/02 ,  G05D1/00 ,  G07C5/00 ,  G07C5/08

CPC classification number: B60W50/0205 ,  G05D1/0011 ,  G05D1/0055 ,  G05D1/0088 ,  G05D2201/0213 ,  G07C5/008 ,  G07C5/0808

Abstract: Disclosed are devices, systems and methods for a monitoring system for autonomous vehicle operation. In some embodiments, a vehicle may perform self-tests, generate a report based on the results, and transmit it to a remote monitor center over one or both of a high-speed channel for regular data transfers or a reliable channel for emergency situations. In other embodiments, the remote monitor center may determine that immediate intervention is required, and may transmit a control command with high priority, which when received by the vehicle, is implemented and overrides any local commands being processed. In yet other embodiments, the control command with high priority is selected from a small group of predetermined control commands the remote monitor center may issue.