Patents by Inventor Krishanth Krishnan
Krishanth Krishnan 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).
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Patent number: 11914378Abstract: A computer-implemented method for controlling a vehicle includes receiving, via a processor, from two or more IX control devices disposed at a two or more stationary positions having known latitudes longitudes and orientations, first sensory data identifying the position and dimensions of a feature in a mapped region. The processor generates a plurality of IX nodes based on the first sensory data received from the IX control devices, and receives LiDAR point cloud that includes LiDAR and other vehicle sensory device data such as Inertial Measurement Unit (IMU) data received from a Vehicle (AV) driving in the mapped region. The LiDAR point cloud includes a simultaneous localization and mapping (SLAM) map having second dimension information and second position information associated with the feature in the mapped region. The processor generates, without GPS and/or real-time kinematics information, an optimized High-Definition (HD) map having Absolute accuracy using batch optimization and map smoothing.Type: GrantFiled: May 18, 2021Date of Patent: February 27, 2024Assignee: Ford Global Technologies, LLCInventors: Ankit Vora, Siddharth Agarwal, Krishanth Krishnan
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Publication number: 20220374016Abstract: A computer-implemented method for controlling a vehicle includes receiving, via a processor, from two or more IX control devices disposed at a two or more stationary positions having known latitudes longitudes and orientations, first sensory data identifying the position and dimensions of a feature in a mapped region. The processor generates a plurality of IX nodes based on the first sensory data received from the IX control devices, and receives LiDAR point cloud that includes LiDAR and other vehicle sensory device data such as Inertial Measurement Unit (IMU) data received from a Vehicle (AV) driving in the mapped region. The LiDAR point cloud includes a simultaneous localization and mapping (SLAM) map having second dimension information and second position information associated with the feature in the mapped region. The processor generates, without GPS and/or real-time kinematics information, an optimized High-Definition (HD) map having Absolute accuracy using batch optimization and map smoothing.Type: ApplicationFiled: May 18, 2021Publication date: November 24, 2022Applicant: Ford Global Technologies, LLCInventors: Ankit Vora, Siddharth Agarwal, Krishanth Krishnan
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Publication number: 20220252404Abstract: A system includes a computer for a vehicle including a processor and a memory. The memory stores instructions executable by the processor to determine a first location of the vehicle, to send the first location to a stationary infrastructure element, to receive, from the stationary infrastructure element, a second location of the vehicle determined from (a) infrastructure sensor data upon identifying the vehicle from a plurality of vehicles, and (b) the first location sent by the vehicle, and to determine a third location of the vehicle based on the infrastructure-determined second location and the first location.Type: ApplicationFiled: February 10, 2021Publication date: August 11, 2022Applicant: Ford Global Technologies, LLCInventors: Ankit Girish Vora, Krishanth Krishnan, Christopher Meissen, Gaurav Pandey, Siddharth Agarwal
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Patent number: 11378668Abstract: A calibration system for a radar sensor and a method of using the system are disclosed. The method may comprise (a) receiving, from a first sensor in a vehicle, a plurality of global navigation satellite system (GNSS) parameters, wherein the plurality of GNSS parameters define a unique terrestrial position of the first sensor; (b) receiving, from a radar sensor in the vehicle, a plurality of radar parameters, wherein the plurality of radar parameters define a position of a calibration target relative to the radar sensor; (c) repeating the receiving of (a) and (b) at additional unique terrestrial positions of the first sensor; (d) using the plurality of GNSS parameters received in (a) and (c) and the plurality of radar parameters received in (b) and (c), determining corresponding positions of the calibration target; and (e) using the corresponding positions of the calibration target, determining radar calibration parameters.Type: GrantFiled: March 3, 2020Date of Patent: July 5, 2022Assignee: Ford Global Technologies, LLCInventors: Krishanth Krishnan, Sangjin Lee, Ankit Girish Vora, Siddharth Agarwal
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Publication number: 20210278511Abstract: A calibration system for a radar sensor and a method of using the system are disclosed. The method may comprise (a) (a) receiving, from a first sensor in a vehicle, a plurality of global navigation satellite system (GNSS) parameters, wherein the plurality of GNSS parameters define a unique terrestrial position of the first sensor; (b) receiving, from a radar sensor in the vehicle, a plurality of radar parameters, wherein the plurality of radar parameters define a position of a calibration target relative to the radar sensor; (c) repeating the receiving of (a) and (b) at additional unique terrestrial positions of the first sensor; (d) using the plurality of GNSS parameters received in (a) and (c) and the plurality of radar parameters received in (b) and (c), determining corresponding positions of the calibration target; and (e) using the corresponding positions of the calibration target, determining radar calibration parameters.Type: ApplicationFiled: March 3, 2020Publication date: September 9, 2021Applicant: Ford Global Technologies, LLCInventors: Krishanth Krishnan, Sangjin Lee, Ankit Girish Vora, Siddharth Agarwal
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Patent number: 11074464Abstract: A computer includes a processor and a memory storing instructions executable by the processor to receive data from a sensor specifying a plurality of points, the points including a plurality of first points that describe an object; define a boundary surrounding the first points while minimizing a volume of space that is both (i) contained by the boundary and (ii) identified as unoccupied; and actuate a component with respect to a vehicle based on the boundary.Type: GrantFiled: July 25, 2019Date of Patent: July 27, 2021Assignee: Ford Global Technologies, LLCInventors: Sangjin Lee, Krishanth Krishnan, Ankit Girish Vora, Siddharth Agarwal
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Publication number: 20210215505Abstract: A computer, including a processor and a memory, the memory including instructions to be executed by the processor to receive initialization data for vehicle sensors including a first sensor, a second sensor and a third sensor, wherein the first sensor and the second sensor are a same type of sensor, and wherein initialization data is measurement of a common location on a fiducial target, determine a common coordinate system by a pair-wise evaluation of the initialization data between the first and second sensors, acquire first, second, and third sensor data from the first, second, and third sensors respectively and translate first, second, and third sensor data into the common coordinate system.Type: ApplicationFiled: January 13, 2020Publication date: July 15, 2021Applicant: Ford Global Technologies, LLCInventors: Juan Enrique Castorena Martinez, Krishanth Krishnan, Yucong Lin, Gintaras Vincent Puskorius
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Publication number: 20210027075Abstract: A computer includes a processor and a memory storing instructions executable by the processor to receive data from a sensor specifying a plurality of points, the points including a plurality of first points that describe an object; define a boundary surrounding the first points while minimizing a volume of space that is both (i) contained by the boundary and (ii) identified as unoccupied; and actuate a component with respect to a vehicle based on the boundary.Type: ApplicationFiled: July 25, 2019Publication date: January 28, 2021Applicant: Ford Global Technologies, LLCInventors: SANGJIN LEE, KRISHANTH KRISHNAN, ANKIT GIRISH VORA, SIDDHARTH AGARWAL
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Patent number: 10777084Abstract: A computer includes a processor and a memory. The memory stores instructions executable by the processor to receive in a host vehicle, from a target vehicle via wireless vehicle-to-vehicle communications, a target vehicle first location in a global coordinate system, determine a target vehicle second location in a local coordinate system that has an origin at the host vehicle, and identify a host vehicle location in the global coordinate system based solely on (i) local coordinate system data determined in the host vehicle, including the target vehicle second location and (ii) data in the vehicle-to-vehicle communications, including the target vehicle first location.Type: GrantFiled: July 18, 2019Date of Patent: September 15, 2020Assignee: Ford Global Technologies, LLCInventors: Ankit Girish Vora, Siddharth Agarwal, Sangjin Lee, Krishanth Krishnan