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公开(公告)号：US12030348B2
公开(公告)日：2024-07-09
申请号：US17782138
申请日：2020-11-24
Applicant: NIRA Dynamics AB
Inventor： Mats Widmark
IPC: B60C23/06
CPC classification number: B60C23/067 , B60C23/061
Abstract: The disclosure relates to systems, methods and computer program products for detecting tire pressure loss in tires of a vehicle. The system comprises a sensor, which is arranged at the vehicle remotely from the tires, mechanically coupled at least indirectly to a chassis of the 5 vehicle, and configured to detect a property indicative of tilting spatial movement of the chassis. The system further comprises a processing unit, which is communicatively coupled with the sensor, configured to receive sensor signals from the sensor, the sensor signals being indicative of tilting spatial movement of the chassis, and configured to detect a tire pressure based on the sensor signals. The processing unit is configured to detect a tire pressure loss responsive to the 10 sensor signals indicating a tilting spatial movement of the chassis towards the at least one tire.
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2.发明申请公开(公告)号：US20230032819A1
公开(公告)日：2023-02-02
申请号：US17785381
申请日：2020-12-22
Applicant: NIRA Dynamics AB
IPC: B60W40/06 , G08G1/0967 , G01W1/02 , G06N3/08
Abstract: Methods, apparatuses, systems and computer program products are disclosed to estimate road surface temperature for a geographic location. Reference ambient sensor data indicative of ambient conditions in vicinity to mobile vehicles are retrieved. Reference roadside sensor data indicative of at least road surface temperature in vicinity to distributed roadside sensors are retrieved. A relationship is established between the reference ambient sensor data and road surface temperature, based on the reference ambient sensor data and based on the reference roadside sensor data. A data structure is created, encoding the established relationship. Further, current vehicle ambient sensor data, indicative of current ambient conditions in vicinity to the one or more vehicles, are collected at one or more vehicles. Finally, a road surface temperature estimate is determined for the geographic location, using the data structure and using the collected current vehicle ambient sensor data.
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公开(公告)号：US11428526B2
公开(公告)日：2022-08-30
申请号：US16330756
申请日：2017-08-18
Applicant: NIRA Dynamics AB
Inventor： Robert Johansson
Abstract: Methods, apparatuses and computer program products for estimating absolute wheel roll radii and/or a vertical compression value of wheels of a vehicle are disclosed, wherein yaw rates of the vehicle, wheel speeds of first and second wheels, and optionally lateral acceleration of the vehicle are measured and used as a basis for the estimation.
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公开(公告)号：US20220073042A1
公开(公告)日：2022-03-10
申请号：US17413484
申请日：2019-12-09
Applicant: NIRA Dynamics AB
IPC: B60T8/1763 , B60T8/172 , B60W40/068
Abstract: Methods, computer program products and apparatuses for estimating the uncertainty of a friction potential value of a wheel of a vehicle are disclosed. The method for estimating the uncertainty of a friction potential value of a wheel of a vehicle comprises obtaining a range of tire models (72). The method further comprises receiving a sensor signal (74) indicative of at least one actual tire-related value. Finally, a friction uncertainty value is calculated (76) based on the received sensor signal and the range of tire models. The friction uncertainty value is indicative of the uncertainty of the friction potential.
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公开(公告)号：US20210221380A1
公开(公告)日：2021-07-22
申请号：US17176430
申请日：2021-02-16
Applicant: Nira Dynamics AB
Inventor： Per MAGNUSSON , Thomas SVANTESSON
IPC: B60W40/06 , B60W30/095 , G08G1/01 , G08G1/16
Abstract: A system for monitoring the condition of a road surface travelled by a plurality of vehicles, each including at least one sensor, is provided. The system includes a central processing arrangement arranged to: map at least a part of the road surface with a number of cells; receive road surface data for the cells, which road surface data is based on measurements made by the sensors as the plurality of vehicles travel on the road surface; and calculate a probability for at least one road surface parameter for each cell travelled by the plurality of vehicles based at least on road surface data received from the plurality of vehicles.
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Patent Agency Ranking
公开(公告)号：US09921134B2
公开(公告)日：2018-03-20
申请号：US14816474
申请日：2015-08-03
Inventor： Michael Unterreiner , Thomas Svantesson , Anders Svensson , Peter Lindskog
CPC classification number: G01M17/022 , G01L17/005
Abstract: System for determining tire wear for tires of a wheeled motor vehicle including a direct tire pressure determination unit being configured to measure at least the tire pressure of the tires; an indirect tire pressure determination unit being configured to determine for at least some of the tires a roll radius factor corresponding to or depending from the roll radius of the respective tire; a tire force determination unit being configured to determine a vertical force factor corresponding to or depending from a vertical force applied to the tires; and a processing unit for determining the tire wear for such tires of the motor vehicle for which the indirect tire pressure determination unit provides the respective roll radius factor, namely by compensating the roll radius factor of the tires provided by the indirect tire pressure determination unit.
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公开(公告)号：US12151655B2
公开(公告)日：2024-11-26
申请号：US15547051
申请日：2016-01-25
Applicant: NIRA DYNAMICS AB
Inventor： Andreas Hall , Robert Johansson , Martin Lilja , Gustav Lindmark , Peter Lindskog , Thomas Svantesson
Abstract: The disclosed invention makes use of a wheel speed signal to detect a wheel anomaly such as a loose wheel or a wheel with zero pressure. The wheel speed signal is used as a basis to determine a first and a second detection signal. A further basis for determining the first and second detection signals are a first and second reference signal, respectively. The anomaly of e.g. a loose wheel is detected, according to the teaching of the invention if at least one of the detection signals exceeds a threshold. In particular, the disclosure relates to methods, systems and computer program products to achieve the mentioned objective.
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公开(公告)号：US20230010882A1
公开(公告)日：2023-01-12
申请号：US17782138
申请日：2020-11-24
Applicant: NIRA Dynamics AB
Inventor： Mats Widmark
IPC: B60C23/06
Abstract: The disclosure relates to systems, methods and computer program products for detecting tire pressure loss in tires of a vehicle. The system comprises a sensor, which is arranged at the vehicle remotely from the tires, mechanically coupled at least indirectly to a chassis of the 5 vehicle, and configured to detect a property indicative of tilting spatial movement of the chassis. The system further comprises a processing unit, which is communicatively coupled with the sensor, configured to receive sensor signals from the sensor, the sensor signals being indicative of tilting spatial movement of the chassis, and configured to detect a tire pressure based on the sensor signals. The processing unit is configured to detect a tire pressure loss responsive to the 10 sensor signals indicating a tilting spatial movement of the chassis towards the at least one tire.
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公开(公告)号：US11505015B2
公开(公告)日：2022-11-22
申请号：US16955103
申请日：2018-12-20
Applicant: Nira Dynamics AB
Inventor： Rickard Karlsson
Abstract: A system for determining a tire pressure status in a vehicle is provided. The system includes at least one processing device, which may be arranged to: estimate values of a set of predetermined vehicle parameters; calculate a tire pressure parameter as a predetermined function of the values of the set of predetermined vehicle parameters, wherein said predetermined function has been generated by training a machine learning system, such as, for example, a neural network or a Support Vector Machine, using values of a large number of sets of predetermined vehicle parameters and associated tire pressure parameters; and determine a tire pressure status, indicating whether or not there is tire under-inflation, by comparing said tire pressure parameter with a threshold.
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公开(公告)号：US11433904B2
公开(公告)日：2022-09-06
申请号：US17176430
申请日：2021-02-16
Applicant: Nira Dynamics AB
Inventor： Per Magnusson , Thomas Svantesson
IPC: B60W40/06 , B60W30/095 , G08G1/01 , G08G1/16
Abstract: A system for monitoring the condition of a road surface travelled by a plurality of vehicles, each including at least one sensor, is provided. The system includes a central processing arrangement arranged to: map at least a part of the road surface with a number of cells; receive road surface data for the cells, which road surface data is based on measurements made by the sensors as the plurality of vehicles travel on the road surface; and calculate a probability for at least one road surface parameter for each cell travelled by the plurality of vehicles based at least on road surface data received from the plurality of vehicles.
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