Patents by Inventor Prashant Tiwari

Prashant Tiwari has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230298469
    Abstract: A system including sensors and a controller for cooperative escape zone detection for a group of vehicles are provided. The sensors obtain driving condition information indicating driving environments and vehicle conditions for the group of vehicles. For each vehicle, the controller determines, based on the driving environment of the vehicle, one or more distances associated with the vehicle that are between the vehicle and one or more obstacles that surround the vehicle and determines an escape zone status for the vehicle based on the one or more distances and the driving environment and the vehicle condition of the vehicle. When the escape zone status of one in the group of vehicles fails to satisfy a pre-defined condition, the controller sends one or more control signals to one or more vehicles in the group of vehicles to create an additional escape zone for the one in the group of vehicles.
    Type: Application
    Filed: October 25, 2021
    Publication date: September 21, 2023
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Rohit GUPTA, Ziran WANG, Kyungtae HAN, Prashant TIWARI
  • Patent number: 11765561
    Abstract: An anchor vehicle includes a network device configured to access a network using dedicated wireless connectivity, and a processor. The processor is programmed to: receive a request for accessing the network using the dedicated wireless connectivity from a connected vehicle; determine whether the connected vehicle has consented to monitoring compliance with a warranty of the connected vehicle; and provide, to the connected vehicle, access to the dedicated wireless connectivity via the anchor vehicle in response to determining that the connected vehicle has consented to monitoring the compliance with the warranty of the connected vehicle.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: September 19, 2023
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Prashant Tiwari, BaekGyu Kim, Nejib Ammar
  • Publication number: 20230283827
    Abstract: A method is provided including receiving a planned route of a vehicle and a request to download content from a cloud server, the planned route traveling through an area covered by a plurality of edge servers, determining a state comprising possible connections between the vehicle and each of the plurality of edge servers at a plurality of time steps during the planned route, inputting the state to a trained model, the model being trained to output an action comprising a partition of the content across the plurality of edge servers that minimizes latency of transmission of the content from the cloud server to the vehicle via the plurality of edge servers, based on the state, and partitioning the content across the plurality of edge servers based on the action out by the trained mode.
    Type: Application
    Filed: March 1, 2022
    Publication date: September 7, 2023
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Siqi Huang, Haoxin Wang, Akila C. Ganlath, Prashant Tiwari
  • Publication number: 20230234593
    Abstract: Systems and methods are provided for predictive assessment of driver perception abilities based on driving behavior personalized to the driver in connection with, but not necessarily, autonomous and semi-autonomous vehicles. In accordance with on embodiment, a method comprises receiving first vehicle operating data and associated first gaze data of a driver operating a vehicle; training a model for the driver based on the first vehicle operating data and the first gaze data, the model indicating driving behavior of the driver; receiving second vehicle operating data and associated second gaze data of the driver; and determining that an ability of the driver to perceive hazards is impaired based on applying the model to the second vehicle operating data and associated second gaze data.
    Type: Application
    Filed: January 27, 2022
    Publication date: July 27, 2023
    Inventors: ROHIT GUPTA, ZHOUQIAO ZHAO, ZIRAN WANG, KYUNGTAE HAN, PRASHANT TIWARI
  • Patent number: 11708049
    Abstract: A method for preventing an operation of a car application that causes a quality of service of an operation of a computer system of a vehicle to be reduced below a threshold can include receiving, from a separate source, a value indicative of the quality of service of the operation of the computer system during the operation of the car application in conjunction with the operation of the computer system. The method can include determining an existence of a condition. The condition can be that the value is less than the threshold. The method can include causing, in response to a determination of a lack of the condition, the car application to be in a condition to be operated on the vehicle. The method can include preventing, in response to a determination of the existence of the condition, the car application from being in the condition to be operated.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: July 25, 2023
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Baekgyu Kim, Nejib Ammar, Prashant Tiwari
  • Patent number: 11709258
    Abstract: The disclosure includes embodiments for a location data correction service for connected vehicles. A method includes receiving, by an operation center via a serverless ad-hoc vehicular network, a first wireless message that includes legacy location data that describes a geographic location of a legacy vehicle. The method includes causing a rich sensor set included in the operation center to record sensor data describing the geographic locations of objects in a roadway environment. The method includes determining correction data that describes a variance between the geographic location of the legacy vehicle as described by the sensor data and the legacy location data. The method includes transmitting a second wireless message to the legacy vehicle, wherein the second wireless message includes the correction data so that the legacy vehicle receives a benefit by correcting the legacy location data to minimize the variance.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: July 25, 2023
    Inventors: Rui Guo, Mahmoud Ashour, Ahmed Sakr, Bin Cheng, Hongsheng Lu, Prashant Tiwari
  • Publication number: 20230227037
    Abstract: A personalized adaptive cruise control (P-ACC) system and associated algorithm are disclosed for determining a driver's preferred following gap in relation to vehicle speed based on periods of steady-state operation of a vehicle. While the P-ACC system is activated, vehicle transition states initiated by driver manual interventions such as takeover or overwrite events are used to identify subsequent periods of vehicle steady-state operation. Vehicle dynamics data captured during periods of steady-state operation is stored as steady-state data, which is then used to train a machine learning model to learn the driver's preferred following gap. This learned relationship is fed into second-order vehicle dynamics to determine a target acceleration for achieving the desired following gap while the P-ACC system is activated. Upon achieving the desired following gap, the vehicle speed may be held constant to maintain the following gap unless a change in lead vehicle speed necessitates updating the following gap.
    Type: Application
    Filed: January 18, 2022
    Publication date: July 20, 2023
    Inventors: ZHOUQIAO ZHAO, ZIRAN WANG, ROHIT GUPTA, KYUNGTAE HAN, PRASHANT TIWARI
  • Publication number: 20230230471
    Abstract: Systems and methods are provided to implement cooperative traffic congestion detection, and enhance the accuracy of detection of traffic congestion for enhanced routing and maneuvering vehicles along a travel route. A vehicle is configured to receive vehicle data from an ad-hoc network of a plurality of vehicles that are communicatively connected (and proximately located). A subset of the plurality of vehicles can be sensor-rich vehicles that are equipped with ranging sensors (e.g., cameras, LIDAR, radar, ultrasonic sensors), which enables real-time detection of the multiple traffic parameters, such as the presence of other vehicles, vehicle speed, vehicle movement, traffic, and the like, within the vicinity along the route.
    Type: Application
    Filed: January 14, 2022
    Publication date: July 20, 2023
    Inventors: MEHMET ALI GUNEY, Rui Guo, Prashant Tiwari
  • Patent number: 11705141
    Abstract: The disclosed technologies relate to reducing audible distractions for a driver of a vehicle. A method includes obtaining audio data based on sound detected inside the vehicle, identifying an audio event based on the audio data, determining a distraction rating for the audio event, the distraction rating indicating an estimated level of distraction caused by the audio event, and generating an alert when the distraction rating exceeds a threshold.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: July 18, 2023
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Rohit Gupta, Ziran Wang, Kyungtae Han, Prashant Tiwari
  • Publication number: 20230219569
    Abstract: Systems and methods are provided for implementing personalized adaptive cruise control techniques in connection with, but not necessarily, autonomous and semi-autonomous vehicles. In accordance with one embodiment, a method comprises receiving first vehicle operating data and associated first environmental data of a plurality of vehicles; classifying the first vehicle operating data and the first environmental data into a plurality of driver type classifications; training a control policy model for each driver type classification based on the first vehicle operating data and the first environmental data; receiving a real-time classification of a target vehicle based on second vehicle operating data and associated second environmental data of the target vehicle; and output a trained control policy model the to target vehicle based on the real-time classification of the vehicle, wherein the target vehicle is controlled according to the trained control policy model.
    Type: Application
    Filed: January 10, 2022
    Publication date: July 13, 2023
    Inventors: ZHOUQIAO ZHAO, ZIRAN WANG, ROHIT GUPTA, KYUNGTAE HAN, PRASHANT TIWARI
  • Publication number: 20230211660
    Abstract: A method comprises determining a vectorized representation of positions of road agents and road geometry based on sensor data from a vehicle, inputting the vectorized representation of the positions of the road agents and the road geometry into a trained transformer network, predicting one or more road agent trajectories at one or more future time steps based on an output of the transformer network, predicting an acceleration of the vehicle at the one or more future time steps based on the predicted one or more road agent trajectories at the one or more future time steps, and causing the vehicle to perform the predicted acceleration at the one or more future time steps.
    Type: Application
    Filed: January 3, 2022
    Publication date: July 6, 2023
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Ziran Wang, Zhouqiao Zhao, Rohit Gupta, Kyungtae Han, Prashant Tiwari
  • Publication number: 20230213935
    Abstract: A method may include receiving a request for drone-assisted media capture from a vehicle located at a first location, the request specifying one or more user preferences, selecting an unmanned aerial vehicle that is able to perform the drone-assisted media capture based on the user preferences, causing the selected unmanned aerial vehicle to travel to the first location, and causing the selected unmanned aerial vehicle to capture media at the first location based on the user preferences.
    Type: Application
    Filed: January 4, 2022
    Publication date: July 6, 2023
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Rohit Gupta, Akila C. Ganlath, Prashant Tiwari
  • Publication number: 20230213354
    Abstract: Systems and methods are provided for utilizing sensor data from sensors of different modalities and from different vehicles to generate a combined image of an environment. Sensor data, such as a point cloud, generated by a LiDAR sensor on a first vehicle may be combined with sensor data, such as image data, generated by a camera on a second vehicle. The point cloud and image data may be combined to provide benefits over either data individually and processed to provide an improved image of the environment of the first and second vehicles. Either vehicle can perform this processing when receiving the sensor data from the other vehicle. An external system can also do the processing when receiving the sensor data from both vehicles. The improved image can then be used by one or both of the vehicles to improve, for example, automated travel through or obstacle identification in the environment.
    Type: Application
    Filed: January 6, 2022
    Publication date: July 6, 2023
    Inventors: XUEWEI QI, RUI GUO, PRASHANT TIWARI, CHANG-HENG WANG, TAKAYUKI SHIMIZU
  • Patent number: 11670169
    Abstract: Systems and methods for distributed cooperative localization in a connected vehicular platform are disclosed herein. At a first sensor-rich vehicle, one embodiment receives, from a second sensor-rich vehicle via direct vehicle-to-vehicle (V2V) communication, an estimated location of the first sensor-rich vehicle and an associated confidence level; estimates a location of the second sensor-rich vehicle based on first sensor data and assigns a confidence level to the estimated location; transmits to the second sensor-rich vehicle via direct V2V communication, the estimated location of the second sensor-rich vehicle and the assigned confidence level; accepts, based on communication between the first and second sensor-rich vehicles and predetermined acceptance criteria, an assignment to perform localization for a legacy vehicle; estimates a location of the legacy vehicle based on second sensor data; and transmits, to the legacy vehicle, the estimated location of the legacy vehicle.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: June 6, 2023
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Mahmoud Ashour, Rui Guo, Ahmed H. Sakr, Prashant Tiwari
  • Patent number: 11661088
    Abstract: A method comprises receiving driving data from a plurality of connected vehicles approaching an intersection, the driving data comprising a speed and position of a connected vehicle, determining estimated times of arrival that each of the connected vehicles will arrive at the intersection based on the driving data, scheduling the connected vehicles to cross the intersection in a particular order based on the estimated times of arrival, and transmitting the scheduled order to the connected vehicles.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: May 30, 2023
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Ziran Wang, Kyungtae Han, Prashant Tiwari
  • Publication number: 20230153378
    Abstract: A server includes a controller programmed to obtain information about a first perception model installed in a vehicle. The controller is further programmed to determine a value of updating the first perception model. The controller is further programmed to determine whether the first perception model needs to be updated to a second perception model based on the value of updating the first perception model. The controller is further programmed to transmit the second perception model to the vehicle in response to determining that the first perception model needs to be updated to the second perception model.
    Type: Application
    Filed: November 12, 2021
    Publication date: May 18, 2023
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Siqi Huang, Haoxin Wang, Akila C. Ganlath, Prashant Tiwari
  • Patent number: 11643082
    Abstract: A method comprises receiving an image of a road captured by a vehicle driving on the road, receiving a map of the road, the map comprising a road geometry of the road, obtaining an edge map of the road based on the image of the road, inputting the image, the map of the road, and the edge map into a trained regressor neural network, determining an estimated snow depth for each of one or more lanes of the road based on an output of the regressor neural network, and transmitting the estimated snow depth to an edge computing device.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: May 9, 2023
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Prashant Tiwari, Rui Guo
  • Publication number: 20230135603
    Abstract: A method comprises receiving, at a vehicle system of a vehicle, sensor data from one or more sensors; detecting an object based on the sensor data; determining whether a dynamic map maintained by a remote computing device includes the detected object; upon determination that the dynamic map includes the detected object, determining a remaining time-to-live associated with the detected object based on data associated with the dynamic map; and transmitting data about the detected object to the remote computing device if the determined remaining time-to-live associated with the detected object is less than a predetermined threshold time.
    Type: Application
    Filed: November 3, 2021
    Publication date: May 4, 2023
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Rohit Gupta, Akila C. Ganlath, Prashant Tiwari
  • Patent number: 11640675
    Abstract: A vehicle for interpreting a traffic scene is provided. The vehicle includes one or more sensors configured to capture an image of an external view of the vehicle, and a controller. The controller is configured to obtain the captured image of the external view of the vehicle from the one or more sensors, segment a plurality of instances from the captured image, determine relational information among the plurality of instances, and generate a hyper graph including a plurality of nodes representing the plurality of instances and a plurality of edges representing the relational information among the plurality of instances.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: May 2, 2023
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Rui Guo, Hongsheng Lu, Prashant Tiwari
  • Patent number: 11634163
    Abstract: Candidate routes, from an origination to a destination, can be produced. Information can be obtained. The information can be of likelihoods of encounters, along the candidate routes, with types of driving situations demonstrated to cause changes in a degree of confidence, of an occupant of an autonomous vehicle, that a controller of the autonomous vehicle will be able to control the autonomous vehicle so that a result of the encounters is not a collision. Take-over probabilities can be obtained. The take-over probabilities can be of likelihoods that the occupant, in response to the encounters, will cause control of the autonomous vehicle to be transferred to the occupant. Based on the information and take-over probabilities, a route from the origination to the destination can be selected from the candidate routes. The autonomous vehicle can be caused to be configured to commence to move in a direction in accordance with the route.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: April 25, 2023
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Ziran Wang, Kyungtae Han, Prashant Tiwari