Systems and methods for navigating a vehicle

    公开(公告)号:US11427192B2

    公开(公告)日:2022-08-30

    申请号:US16951267

    申请日:2020-11-18

    Abstract: Systems and methods are provided for vehicle navigation. In one implementation, a system may comprise an interface to obtain sensing data of an environment of the host vehicle. The processing device may be configured to determine a planned navigational action; identify, a target vehicle in the environment of the host vehicle; predict a distance between the host vehicle and the target vehicle if the planned navigational action was taken; determine a current host vehicle stopping distance based on a braking capability, acceleration capability, and speed of the host vehicle; determine a current target vehicle braking distance based on a speed and braking capability of the target vehicle; and implement the planned navigational action when the predicted distance of the planned navigational action is greater than a minimum safe longitudinal distance calculated based on the current host vehicle stopping distance and the current target vehicle braking distance.

    NAVIGATION AT ALTERNATING MERGE ZONES

    公开(公告)号:US20210269021A1

    公开(公告)日:2021-09-02

    申请号:US17325301

    申请日:2021-05-20

    Abstract: The present disclosure relates to systems and methods for host vehicle navigation. In one implementation, a navigation system for a host vehicle may include at least one processing device programmed to receive, from a camera, a plurality of images representative of an environment of the host vehicle; analyze the plurality of images to identify a first flow of traffic and a second flow of traffic; determine a presence of at least one navigational state characteristic indicative of an alternating merging of the first flow of traffic and the second flow of traffic into a merged lane; cause at least a first navigational change to allow one target vehicle from the first flow of traffic to proceed ahead of the host vehicle; and cause at least a second navigational change to cause the host vehicle to follow the target vehicle into the merged lane.

    SYSTEMS AND METHODS FOR NAVIGATING A VEHICLE

    公开(公告)号:US20210179096A1

    公开(公告)日:2021-06-17

    申请号:US17186917

    申请日:2021-02-26

    Abstract: A navigational system for a host vehicle may comprise at least one processor. The processor may be programmed to receive an image representative of an environment of the host vehicle; analyze the image to identify a navigational state associated with the host vehicle; and determine, based on the navigational state, a navigational action for the host vehicle based on a policy that maps possible navigational actions to sensed states. The navigational action may be based on a safety constraint applicable to the navigational state, the safety constraint including a safety distance constraint associated with the host vehicle, wherein the safety distance constraint is based on a determined speed of the host vehicle and a determined speed of a detected target object. The processor may cause an adjustment of a navigational actuator of the host vehicle to implement the determined navigational action.

    Systems and methods for estimating future paths

    公开(公告)号:US11023788B2

    公开(公告)日:2021-06-01

    申请号:US15398926

    申请日:2017-01-05

    Abstract: A system and method estimate a future path ahead of a current location of a vehicle. The system includes at least one processor programmed to obtain a trained system that was trained to estimate a future path on a first plurality of images of environments ahead of vehicles navigating roads. The at least one processor is also programmed to obtain an image of an environment ahead of a current arbitrary location of a vehicle navigating a road, and provide, based on an application of the trained system to the obtained image, an estimated future path of the vehicle ahead of the current arbitrary location.

    Safety and comfort constraints for navigation

    公开(公告)号:US10976741B2

    公开(公告)日:2021-04-13

    申请号:US16935567

    申请日:2020-07-22

    Abstract: A navigational system for a host vehicle may comprise at least one processing device. The processing device may be programmed to receive a first output and a second output associated with a host vehicle, wherein at least one of the outputs is received from a sensor onboard the host vehicle. The processing device may identify a target object in the first output and determine whether a characteristic of the target object triggers a navigational constraint by verifying the identification of the target object based on the first output; and, if the navigational constraint is not verified based on the first output, then verifying the identification of the target object based on a combination of the first output and the second output. In response to the verification, the processing device may cause at least one navigational change to the host vehicle.

    Path prediction to compensate for control delay

    公开(公告)号:US10850728B2

    公开(公告)日:2020-12-01

    申请号:US16426403

    申请日:2019-05-30

    Abstract: A navigation system includes a processor programmed to receive, from a sensor, an output related to a motion of the host vehicle. The output is generated at a first time that is later than a data acquisition time, when a measurement or data acquisition on which the output is based is acquired, and earlier than a second time at which the sensor output is received processor; generate, for a motion prediction time, a prediction of at least one aspect of host vehicle motion based, on the output and how the aspect of host vehicle motion changes over a time interval between the data acquisition time and the motion prediction time; determine a navigational action for the host vehicle; generate a navigational command for implementing at least a portion of the navigational action; and provide the navigational command to at least one actuation system of the host vehicle.

    SAFETY AND COMFORT CONSTRAINTS FOR NAVIGATION

    公开(公告)号:US20200348672A1

    公开(公告)日:2020-11-05

    申请号:US16935567

    申请日:2020-07-22

    Abstract: A navigational system for a host vehicle may comprise at least one processing device. The processing device may be programmed to receive a first output and a second output associated with a host vehicle, wherein at least one of the outputs is received from a sensor onboard the host vehicle. The processing device may identify a target object in the first output and determine whether a characteristic of the target object triggers a navigational constraint by verifying the identification of the target object based on the first output; and, if the navigational constraint is not verified based on the first output, then verifying the identification of the target object based on a combination of the first output and the second output. In response to the verification, the processing device may cause at least one navigational change to the host vehicle.

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