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公开(公告)号：US12072183B2
公开(公告)日：2024-08-27
申请号：US17645361
申请日：2021-12-21
CPC分类号： G01B5/0025 , B60D1/065 , G01B21/22 , G01S11/16
摘要： Systems, methods, and apparatus are provided in a vehicle having a Hitch Articulation Angle (HAA) calculation system for estimating an HAA between the vehicle and a towed trailer. The method includes: receiving a plurality of ultrasonic sensor (USS) range measurements for a first USS on the vehicle while the vehicle is towing the trailer in a forward direction; receiving a plurality of HAA values calculated using geometric equations or a kinematic model that correspond to the plurality of USS range measurements; receiving a USS range measurement for the first USS while the vehicle is operating in a reverse direction or experiencing a high HAA but not from a second USS; estimating an HAA value from the USS range measurement by applying the USS curve characteristics for the first USS; and providing the estimated HAA value to a vehicle motion control system for use in controlling vehicle and trailer motion.
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公开(公告)号：US20220291377A1
公开(公告)日：2022-09-15
申请号：US17196910
申请日：2021-03-09
摘要： In various embodiments, methods, systems, and vehicle apparatuses are provided. A method for estimating a Hitch Articulation Angle (HAA) using Ultra-Sonic Sensors (USSs) while ensuring quality detected echo signal performance using plausibility filtering, generating at least one set of USS data based on detecting a set of echo signals generated by a plurality of USSs configured about a vehicle coupled to a trailer; determining based on a set of USS data using a selected set of geometric equations in a plausibility filtering process for an arbitrary frontal shape of the trailer; and generating at least one comparison based on at least one set of USS data estimations to a kinematic model at low speeds for ensuring that results of the kinematic model to the HAA associated with the determined trailer shape is based on a pair of detected echo signals that are deemed to have a higher signal performance.
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公开(公告)号：US11598870B2
公开(公告)日：2023-03-07
申请号：US17196910
申请日：2021-03-09
摘要： In various embodiments, methods, systems, and vehicle apparatuses are provided. A method for estimating a Hitch Articulation Angle (HAA) using Ultra-Sonic Sensors (USSs) while ensuring quality detected echo signal performance using plausibility filtering, generating at least one set of USS data based on detecting a set of echo signals generated by a plurality of USSs configured about a vehicle coupled to a trailer; determining based on a set of USS data using a selected set of geometric equations in a plausibility filtering process for an arbitrary frontal shape of the trailer; and generating at least one comparison based on at least one set of USS data estimations to a kinematic model at low speeds for ensuring that results of the kinematic model to the HAA associated with the determined trailer shape is based on a pair of detected echo signals that are deemed to have a higher signal performance.
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公开(公告)号：US10696108B1
公开(公告)日：2020-06-30
申请号：US16380297
申请日：2019-04-10
IPC分类号： B60C23/04
摘要： Embodiments include methods, systems and computer readable storage medium for a method for detection and notification of a tire leak is disclosed. The method includes receiving, by a tire leak detection system, sensor data from one or more tires. The method further includes determining, by the tire leak detection system, an occurrence of a leak anomaly in at least one of the one or more tires based on the sensor data. The method further includes predicting, by the tire leak detection system, a time and/or distance the at least one of the one or more tires will function ineffectively. The method further includes outputting, by the tire leak detection system, a code to a user or server indicating a leak type associated with the leak anomaly.
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公开(公告)号：US11815426B2
公开(公告)日：2023-11-14
申请号：US17072486
申请日：2020-10-16
IPC分类号： G01M17/013 , B60C25/00 , G07C5/08 , G01M17/02
CPC分类号： G01M17/013 , B60C25/007 , G01M17/025 , G07C5/0841
摘要： A vibration monitoring system includes a plurality of encoders and an analyzer. The encoders are configured to generate multiple pulse train signals for multiple wheels. Each encoder is coupled to a respective one of the multiple wheels and generates a single one of the pulse train signals. The analyzer is coupled to the encoders and is configured to generate multiple pulse per revolution signals and multiple angular velocity signals for the wheels in response to the pulse train signals. Each pulse per revolution signal conveys a single pulse per rotation of the respective wheel. The analyzer is further configured to generate an input phasor array representative of the pulse per revolution signals, generate a response phasor array in response to the angular velocity signals for the wheels, and generate a report that identifies at least one vibrating wheel in response to the input phasor array and the response phasor array.
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6.发明公开公开(公告)号：US20230194232A1
公开(公告)日：2023-06-22
申请号：US17645361
申请日：2021-12-21
CPC分类号： G01B5/0025 , G01B21/22 , B60D1/065 , G01S11/16
摘要： Systems, methods, and apparatus are provided in a vehicle having a Hitch Articulation Angle (HAA) calculation system for estimating an HAA between the vehicle and a towed trailer. The method includes: receiving a plurality of ultrasonic sensor (USS) range measurements for a first USS on the vehicle while the vehicle is towing the trailer in a forward direction; receiving a plurality of HAA values calculated using geometric equations or a kinematic model that correspond to the plurality of USS range measurements; receiving a USS range measurement for the first USS while the vehicle is operating in a reverse direction or experiencing a high HAA but not from a second USS; estimating an HAA value from the USS range measurement by applying the USS curve characteristics for the first USS; and providing the estimated HAA value to a vehicle motion control system for use in controlling vehicle and trailer motion.
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公开(公告)号：US20220120638A1
公开(公告)日：2022-04-21
申请号：US17072486
申请日：2020-10-16
IPC分类号： G01M17/013 , G01M17/02 , G07C5/08 , B60C25/00
摘要： A vibration monitoring system includes a plurality of encoders and an analyzer. The encoders are configured to generate multiple pulse train signals for multiple wheels. Each encoder is coupled to a respective one of the multiple wheels and generates a single one of the pulse train signals. The analyzer is coupled to the encoders and is configured to generate multiple pulse per revolution signals and multiple angular velocity signals for the wheels in response to the pulse train signals. Each pulse per revolution signal conveys a single pulse per rotation of the respective wheel. The analyzer is further configured to generate an input phasor array representative of the pulse per revolution signals, generate a response phasor array in response to the angular velocity signals for the wheels, and generate a report that identifies at least one vibrating wheel in response to the input phasor array and the response phasor array.
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