Patents by Inventor LUDONG SUN
LUDONG SUN 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: 11774974Abstract: An operating system for an automated vehicle includes a failure-detector and a controller. The failure-detector detects a component-failure on a host-vehicle. Examples of the component-failure include a flat-tire and engine trouble that reduces engine-power. The controller operates the host-vehicle based on a dynamic-model. The dynamic-model is varied based on the component-failure detected by the failure-detector.Type: GrantFiled: April 26, 2021Date of Patent: October 3, 2023Assignee: Motional AD LLCInventors: Junqing Wei, Ludong Sun, Zachary Thomas Batts, Jarrod M. Snider, Junsung Kim
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Publication number: 20230219561Abstract: Provided are methods for vehicle state estimation based on sensor data, which can include receiving the sensor data generated by one or more sensors, calculating a cornering stiffness value associated with the vehicle, predicting a lateral velocity value associated with the vehicle based on the cornering stiffness value, and outputting a set of vehicle state variables indicative of a current state of the vehicle at least by inputting the lateral velocity value into a recursive filter. Some methods described also include updating the cornering stiffness value based on the set of vehicle state variables, updating the lateral velocity value based on the updated cornering stiffness value, and updating the set of vehicle state variables based on the updated lateral velocity value. Systems and computer program products are also provided.Type: ApplicationFiled: January 5, 2022Publication date: July 13, 2023Inventors: Ahmed H. EL-Shaer, Yimeng Dong, Ludong Sun
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Publication number: 20230152796Abstract: Provided are systems and methods for vehicle control time delay compensation. Data associated with a vehicle state of the vehicle is provided. Data associated with at least one control parameter is received from the control system, the data generated by the control system based on the vehicle state. A time delay related to generation of the data associated with the at least one control parameter is determined by the control system, the time delay associated with a period of time from when the data associated with the vehicle state was transmitted to the control system to when the data associated with the at least one control parameter was received by the DBW system. A DBW parameter is determined based on the data associated with the at least one control parameter and the time delay, wherein the DBW parameter is used for traversal of a path by the vehicle.Type: ApplicationFiled: November 15, 2021Publication date: May 18, 2023Inventors: Yiming Zhang, Ludong Sun, Ahmed El Shaer
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Publication number: 20230146312Abstract: Among other things, we describe techniques for implementing a vehicle response to sensor failure. In general, one innovative aspect of the subject matter described in this specification can be embodied in methods that include receiving information from a plurality of sensors coupled to a vehicle, determining that a level of confidence of the received information from at least one sensor of a first subset of sensors of the plurality of sensors is less than a first threshold, comparing a number of sensors in the first subset of sensors to a second threshold, and adjusting the driving capability of the vehicle to rely on information received from a second subset of sensors of the plurality of sensors, wherein the second subset of sensors excludes the at least one sensor of the first subset of sensors.Type: ApplicationFiled: January 4, 2023Publication date: May 11, 2023Inventors: Zachary Thomas Batts, Ludong Sun, Ky Woodard, Qian Wang, Yiming Zhao, Stephanie Lee, Lin Zhao
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Patent number: 11573567Abstract: A system includes one or more sensor systems, a controller-circuit, a first module, and a second module. The sensor systems are configured to determine position relationship data between a roadway and a host vehicle. The sensor system includes at least one of a computer-vision system, a radar system, and a LIDAR system. The controller-circuit is configured to receive and transform the position relationship data to effect steering control of the host vehicle. The first module is controlled by the controller-circuit to effect the steering control when the steering control transitions from a manual-mode to an automated mode. The second module is controlled by the controller-circuit to effect steering control of the host vehicle after control by the first module and upon meeting a prescribed condition.Type: GrantFiled: October 3, 2018Date of Patent: February 7, 2023Assignee: Motional AD LLCInventors: Zachary T. Batts, Ludong Sun
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Patent number: 11548526Abstract: Among other things, we describe techniques for implementing a vehicle response to sensor failure. In general, one innovative aspect of the subject matter described in this specification can be embodied in methods that include receiving information from a plurality of sensors coupled to a vehicle, determining that a level of confidence of the received information from at least one sensor of a first subset of sensors of the plurality of sensors is less than a first threshold, comparing a number of sensors in the first subset of sensors to a second threshold, and adjusting the driving capability of the vehicle to rely on information received from a second subset of sensors of the plurality of sensors, wherein the second subset of sensors excludes the at least one sensor of the first subset of sensors.Type: GrantFiled: April 29, 2020Date of Patent: January 10, 2023Assignee: Motional AD LLCInventors: Zachary Thomas Batts, Ludong Sun, Ky Woodard, Qian Wang, Yiming Zhao, Stephanie Lee, Lin Zhao
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Publication number: 20220315007Abstract: An apparatus is provided which includes a processing circuit and a plurality of sensors connected to a vehicle, where at least one of the plurality of sensors is positioned on an undercarriage of the vehicle. The plurality of sensors can detect variations in a road on which the vehicle is traveling. The plurality of sensors can also generate information corresponding to the variations of the road. The plurality of sensors can also transmit the information corresponding to the variations in the road to the processing circuit. The information collected by the plurality of sensors may then be used to augment a driving capability of the vehicle.Type: ApplicationFiled: April 15, 2022Publication date: October 6, 2022Inventors: Zachary Thomas Batts, Ludong Sun, Ky Woodard, Qian Wang, Yiming Zhao, Stephanie Lee, Lin Zhao
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Publication number: 20220289199Abstract: Among other things, systems and methods are described for brake arbitration. Safe stop requests are obtained. A safe stop request is associated with a deceleration value of a vehicle in motion. Safe stop activations associated with the safe stop request are determined, wherein the safe stop activations are associated with predetermined deceleration values. An automated emergency (AEB) system deceleration command is calculated. Arbitration is performed between the deceleration values associated with the safe stop request, predetermined deceleration values associated with the safe stop activations, and the deceleration value calculated from data captured by the AEB system to determine a final deceleration output.Type: ApplicationFiled: March 15, 2022Publication date: September 15, 2022Inventor: Ludong Sun
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Patent number: 11305777Abstract: An apparatus is provided which includes a processing circuit and a plurality of sensors connected to a vehicle, where at least one of the plurality of sensors is positioned on an undercarriage of the vehicle. The plurality of sensors can detect variations in a road on which the vehicle is traveling. The plurality of sensors can also generate information corresponding to the variations of the road. The plurality of sensors can also transmit the information corresponding to the variations in the road to the processing circuit. The information collected by the plurality of sensors may then be used to augment a driving capability of the vehicle.Type: GrantFiled: January 28, 2020Date of Patent: April 19, 2022Assignee: Motional AD LLCInventors: Zachary Thomas Batts, Ludong Sun, Ky Woodard, Qian Wang, Yiming Zhao, Stephanie Lee, Lin Zhao
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Publication number: 20210247772Abstract: An operating system for an automated vehicle includes a failure-detector and a controller. The failure-detector detects a component-failure on a host-vehicle. Examples of the component-failure include a flat-tire and engine trouble that reduces engine-power. The controller operates the host-vehicle based on a dynamic-model. The dynamic-model is varied based on the component-failure detected by the failure-detector.Type: ApplicationFiled: April 26, 2021Publication date: August 12, 2021Inventors: Junqing Wei, Ludong Sun, Zachary Thomas Batts, Jarrod M. Snider, Junsung Kim
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Patent number: 11029688Abstract: A rumble-strip following system for automated vehicle steering includes a vibration-detector, a steering-device, and a controller-circuit. The vibration-detector is configured to detect vibration experienced by a host-vehicle traveling a roadway. The steering-device is configured to steer the host-vehicle. The controller-circuit is in communication with the vibration-detector and the steering-device. The controller-circuit is configured to determine that the vibration is indicative of a tire of the host-vehicle contacting a rumble-strip arranged parallel to a heading of the roadway, and operate the steering-device so the tire follows the rumble-strip.Type: GrantFiled: March 13, 2018Date of Patent: June 8, 2021Assignee: Motional AD LLCInventors: Zachary T. Batts, Ludong Sun, Junqing Wei
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Patent number: 10990102Abstract: An operating system for an automated vehicle includes a failure-detector and a controller. The failure-detector detects a component-failure on a host-vehicle. Examples of the component-failure include a flat-tire and engine trouble that reduces engine-power. The controller operates the host-vehicle based on a dynamic-model. The dynamic-model is varied based on the component-failure detected by the failure-detector.Type: GrantFiled: June 14, 2017Date of Patent: April 27, 2021Assignee: Motional AD LLCInventors: Junqing Wei, Ludong Sun, Zachary Thomas Batts, Jarrod M. Snider, Junsung Kim
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Patent number: 10909851Abstract: An intent communication system includes one or more sensors, a controller-circuit, and a broadcast device. The sensors may include one or more of a Light Detection and Ranging (LiDAR), a radar, and a computer vision system. The controller-circuit is disposed in a host vehicle. The controller-circuit is configured to determine, based one or more signals from the one or more sensors, an impending vehicle maneuver. The broadcast device is located in the host vehicle, and is configured to broadcast a broadcast signal containing information directed to the impending vehicle maneuver to at least one vehicle determined to be in a vicinity of the impending vehicle maneuver.Type: GrantFiled: June 6, 2018Date of Patent: February 2, 2021Assignee: Motional AD LLCInventors: Zachary T. Batts, Ludong Sun
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Publication number: 20200339151Abstract: Among other things, we describe techniques for implementing a vehicle response to sensor failure. In general, one innovative aspect of the subject matter described in this specification can be embodied in methods that include receiving information from a plurality of sensors coupled to a vehicle, determining that a level of confidence of the received information from at least one sensor of a first subset of sensors of the plurality of sensors is less than a first threshold, comparing a number of sensors in the first subset of sensors to a second threshold, and adjusting the driving capability of the vehicle to rely on information received from a second subset of sensors of the plurality of sensors, wherein the second subset of sensors excludes the at least one sensor of the first subset of sensors.Type: ApplicationFiled: April 29, 2020Publication date: October 29, 2020Inventors: Zachary Thomas Batts, Ludong Sun, Ky Woodard, Qian Wang, Yiming Zhao, Stephanie Lee, Lin Zhao
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Publication number: 20200238999Abstract: An apparatus is provided which includes a processing circuit and a plurality of sensors connected to a vehicle, where at least one of the plurality of sensors is positioned on an undercarriage of the vehicle. The plurality of sensors can detect variations in a road on which the vehicle is traveling. The plurality of sensors can also generate information corresponding to the variations of the road. The plurality of sensors can also transmit the information corresponding to the variations in the road to the processing circuit. The information collected by the plurality of sensors may then be used to augment a driving capability of the vehicle.Type: ApplicationFiled: January 28, 2020Publication date: July 30, 2020Inventors: Zachary Thomas Batts, Ludong Sun, Ky Woodard, Qian Wang, Yiming Zhao, Stephanie Lee, Lin Zhao
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Publication number: 20200103896Abstract: A system includes one or more sensor systems, a controller-circuit, a first module, and a second module. The sensor systems are configured to determine position relationship data between a roadway and a host vehicle. The sensor system includes at least one of a computer-vision system, a radar system, and a LIDAR system. The controller-circuit is configured to receive and transform the position relationship data to effect steering control of the host vehicle. The first module is controlled by the controller-circuit to effect the steering control when the steering control transitions from a manual-mode to an automated mode. The second module is controlled by the controller-circuit to effect steering control of the host vehicle after control by the first module and upon meeting a prescribed condition.Type: ApplicationFiled: October 3, 2018Publication date: April 2, 2020Inventors: Zachary T. Batts, Ludong Sun
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Patent number: 10586407Abstract: A tire-wear detection system for an automated vehicle includes a steering-angle-sensor, a vehicle-path-detector, and a controller. The steering-angle-sensor indicates a steering-angle of a host-vehicle. The vehicle-path-detector indicates a turning-radius of the host-vehicle. The controller is in communication with the steering-angle-sensor and the vehicle-path-detector. The controller determines a wear-status of a tire of the host-vehicle based on the turning-radius and the steering-angle.Type: GrantFiled: April 6, 2017Date of Patent: March 10, 2020Assignee: Aptiv Technologies LimitedInventors: Junqing Wei, Ludong Sun, Zachary Thomas Batts, Jarrod M. Snider
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Publication number: 20190378411Abstract: An intent communication system includes one or more sensors, a controller-circuit, and a broadcast device. The sensors may include one or more of a Light Detection and Ranging (LiDAR), a radar, and a computer vision system. The controller-circuit is disposed in a host vehicle. The controller-circuit is configured to determine, based one or more signals from the one or more sensors, an impending vehicle maneuver. The broadcast device is located in the host vehicle, and is configured to broadcast a broadcast signal containing information directed to the impending vehicle maneuver to at least one vehicle determined to be in a vicinity of the impending vehicle maneuver.Type: ApplicationFiled: June 6, 2018Publication date: December 12, 2019Inventors: Zachary T. Batts, Ludong Sun
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Patent number: 10384660Abstract: A brake control system for operating brakes of an automated vehicle at slow speed includes a motion-detector and a controller. The motion-detector detects relative-movement of a host-vehicle relative to a stationary-feature located apart from the host-vehicle. The controller is configured to operate brakes of the host-vehicle. The controller determines a vehicle-speed of the host-vehicle based on the relative-movement when the vehicle-speed is less than a speed-threshold, and regulates brake-pressure of the brakes based on the vehicle-speed.Type: GrantFiled: June 12, 2017Date of Patent: August 20, 2019Assignee: Aptiv Technologies LimitedInventors: Junqing Wei, Ludong Sun, Zachary Thomas Batts, Jarrod M. Snider
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Publication number: 20190250618Abstract: A rumble-strip following system for automated vehicle steering includes a vibration-detector, a steering-device, and a controller-circuit. The vibration-detector is configured to detect vibration experienced by a host-vehicle traveling a roadway. The steering-device is configured to steer the host-vehicle. The controller-circuit is in communication with the vibration-detector and the steering-device. The controller-circuit is configured to determine that the vibration is indicative of a tire of the host-vehicle contacting a rumble-strip arranged parallel to a heading of the roadway, and operate the steering-device so the tire follows the rumble-strip.Type: ApplicationFiled: March 13, 2018Publication date: August 15, 2019Inventors: Zachary T. Batts, Ludong Sun, Junqing Wei