MANAGING REDUNDANT STEERING SYSTEM FOR AUTONOMOUS VEHICLES

    公开(公告)号:US20210276615A1

    公开(公告)日:2021-09-09

    申请号:US16810781

    申请日:2020-03-05

    Applicant: TUSIMPLE, INC.

    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.

    POWER MANAGEMENT SYSTEM FOR AUTONOMOUS VEHICLES

    公开(公告)号:US20210237667A1

    公开(公告)日:2021-08-05

    申请号:US16781936

    申请日:2020-02-04

    Applicant: TUSIMPLE, INC.

    Abstract: A power management system is disclosed for managing power in a vehicle. The system may include a power distribution unit (PDU) communicably coupled to a power controller unit located in the vehicle. The power controller unit comprises a microcontroller configured to: receive, from the PDU, a temperature value that indicates a temperature of the PDU, one or more voltage values from the one or more voltage sensors, or one or more current values from the one or more current sensors, perform a determination that the temperature value, the one or more voltage values, or the one or more current values are below one or more of their respective pre-determined threshold values, and send, after the determination, a health status message to a computer located in the vehicle, where the health status message indicates that the PDU is operating in a safe operating condition.

    SYSTEM-LEVEL MALFUNCTION INDICATOR IN AUTONOMOUS VEHICLES

    公开(公告)号:US20210199705A1

    公开(公告)日:2021-07-01

    申请号:US16727829

    申请日:2019-12-26

    Applicant: TUSIMPLE, INC.

    Abstract: Devices, systems and methods for using system-level malfunction indicators to monitor the operation and resiliency of the autonomous driving system components are described. One example of a method for diagnosing a fault in a component of an autonomous vehicle includes receiving, from an electrical sub-component of the component, an electrical signal, receiving, from an electronic sub-component of the component, a message, and determining, based on the electrical signal and the message, an operational status of the component.

    LIGHTING CONTROL FOR AUTONOMOUS VEHICLES

    公开(公告)号:US20210129743A1

    公开(公告)日:2021-05-06

    申请号:US17144436

    申请日:2021-01-08

    Applicant: TUSIMPLE, INC.

    Abstract: Devices, systems and methods for controlling an exterior and dashboard lights of an autonomous vehicle are described. One example of a method for controlling one or more exterior lights includes receiving, from an autonomous driving system (ADS) of the vehicle, an input to control one or more exterior lights that are part of a lighting system of the vehicle, and transmitting, based on the input, a message to a controller area network (CAN) bus of the lighting system, the message being further based on a driver command upon a determination that a driver-initiated message is received. In an example, the lighting system of the vehicle further comprises a plurality of dashboard lights.

    ENVIRONMENT MACHINE INTERFACE SYSTEM

    公开(公告)号:US20210092573A1

    公开(公告)日:2021-03-25

    申请号:US17017176

    申请日:2020-09-10

    Applicant: TUSIMPLE, INC.

    Abstract: Methods, systems and apparatus for an autonomous vehicle to interact with its surrounding are described. One example method implemented by an autonomous vehicle processor includes receiving an input indicative of presence of one or more conditions for an autonomous vehicle to interact with an environment of the autonomous vehicle, determining, based on the one or more conditions, one or more interfacing signals to be outputted and outputting the one or more interfacing signals for a duration that depends on the one or more conditions.

    VEHICLE WEIGHT DISTRIBUTION DETERMINATION

    公开(公告)号:US20210048333A1

    公开(公告)日:2021-02-18

    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.

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