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公开(公告)号：US12072262B2
公开(公告)日：2024-08-27
申请号：US17901879
申请日：2022-09-02
申请人： Jilin University
发明人： Bing Zhu , Peixing Zhang , Jian Zhao , Yuhang Sun , Tianxin Fan
IPC分类号： G01M17/007 , B60W50/04 , B60W60/00
CPC分类号： G01M17/0078 , B60W50/045 , B60W60/001 , B60W2520/105
摘要： The disclosure belongs to the technical field of autonomous vehicle, in particular to an automatic driving acceleration test method considering efficiency and coverage, which includes the following steps. Step 1 is definition of scenario test priority. Step 2 is zone division. Step 3 is search within zones. Step 4 is update of scenario test priorities. Step 5 is iterative test. After selecting the automatic driving function to be tested and setting the parameters of the vehicle operation zone, the scenario generation range is formed. The coverage of the test scenario is improved by dividing the generated range and setting the freedom of early autonomous driving exploration. The efficiency of the test process is improved by continuously improving the probability of generating dangerous scenarios in the test process. Thus, it is ensured that the generated test scenarios take into account both test efficiency and test coverage.
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公开(公告)号：US12044598B2
公开(公告)日：2024-07-23
申请号：US17602761
申请日：2020-04-09
申请人： Compredict GmbH
发明人： Stéphane Foulard , Rafael Fietzek , Ousama Esbel
IPC分类号： G01M17/007 , G06F30/27
CPC分类号： G01M17/007 , G06F30/27
摘要： A load prediction method for a component of a vehicle includes a model creation process. A load model is created using an identification method based on a training-drive data group, a training vehicle data group and a training load group. The training-drive data group contains training-drive data sets, each containing route data and/or accompanying drive data for a training drive of a training vehicle on a training route. The training vehicle data group comprises vehicle data from the training vehicle used on the training drive. The training load group includes training load data including a load of the component that corresponds to a training-drive data set. The load model approximates the occurring load on a predetermined training route or with predetermined accompanying drive data or according to predetermined vehicle data. In a model evaluation process, the load prediction is determined using the load model.
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公开(公告)号：US20240219264A1
公开(公告)日：2024-07-04
申请号：US18092430
申请日：2023-01-02
发明人： Lynn Sarcione
IPC分类号： G01M17/007 , G06F30/20
CPC分类号： G01M17/007 , G06F30/20
摘要： The disclosed technology provides solutions for validating a configuration change of autonomous vehicle (AV) test parameter(s) by determining an impact of the configuration change on a simulation test suite. A process of the disclosed technology can include steps for receiving a first configuration of a test parameter associated with testing an AV, receiving a set of simulation scenarios from a test suite, running a predetermined number of simulations of the AV using the set of simulation scenarios, determining a first distribution with respect to repeatability based on simulation output, updating a configuration of the test parameter to generate a second configuration, running the predetermined number of simulations, determining a second distribution with respect to repeatability based on simulation output, and validating the configuration update based on a comparison between the first distribution and the second distribution. Systems and machine-readable media are also provided.
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公开(公告)号：US11965791B2
公开(公告)日：2024-04-23
申请号：US17661631
申请日：2022-05-02
申请人： Delbert Robinson
发明人： Delbert Robinson
IPC分类号： G01L3/20 , G01M17/007
CPC分类号： G01L3/20 , G01M17/0072
摘要： An improved prony brake dynamometer capable of measuring the power of a prime mover's rotating shaft connected to a cylinder brake drum rotating around a newly designed dual quad power stator (DQPS), with hydraulic pressure equalizer plate (HPEP), controlled by an electronic load control system with inline cooling system (ELCS), cooled by a 270-degree water distribution manifold (WDM). The improvements of the DQPS and HPEP result in maximizing the pressure applied by the stator over the entire surface area of the rotor drum, thereby maximizing the coefficient of friction at the kinetic point of energy and increasing load capacity over previous models. The addition of the ELCS increases the number of potential settings of hydraulic pressure, resulting in thousands of power settings, as opposed to previous models using manual load control valves. The WDM cools the dynamometer load absorption unit more efficiently than previous models.
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公开(公告)号：US11954946B1
公开(公告)日：2024-04-09
申请号：US16842036
申请日：2020-04-07
申请人： Opus IVS, Inc.
IPC分类号： G07C5/00 , G01M17/007 , G07C5/08
CPC分类号： G07C5/008 , G01M17/007 , G07C5/0808 , G07C2205/02
摘要： A method for performing a vehicle diagnostic process for diagnosing, scanning and/or programming a vehicle includes recording a diagnostic message from a diagnostic computer device to generate a recorded diagnostic message, transmitting the recorded diagnostic message to a local computer at a repair facility, with the diagnostic computer device being located remotely from the repair facility, and playing the recorded diagnostic message at the local computer for delivery via an interface device to an electronic system of a vehicle. The method then further includes recording with the local computer a vehicle message from the electronic system of the vehicle to generate a recorded vehicle message in response to playing the recorded diagnostic message, and transmitting the recorded vehicle message from the local computer to the diagnostic computer device.
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公开(公告)号：US11946828B2
公开(公告)日：2024-04-02
申请号：US17615618
申请日：2020-02-14
发明人： Hideaki Kobiki , Kentaro Sato , Tsuyoshi Shiozaki
IPC分类号： G01M17/00 , B62D25/04 , G01M17/007
CPC分类号： G01M17/0078 , B62D25/04
摘要： A side crash test apparatus uses a crash test structure including a center pillar, a roof-rail simulated part, and a rocker simulated part, and includes: a striker; a roof rail support; and a rocker support. The rocker support includes a rocker-rotation braking mechanism configured to restrain translation of the rocker simulated part, and support the rocker simulated part to be rotatable about an axis thereof and allow braking of the rotation. The rocker-rotation braking mechanism includes a rocker-rotation support member configured to rotate about the axis together with the rocker simulated part, a rocker-rotation shaft support configured to support a rotation center of the rocker-rotation support member, a rocker-rotation braking plate extended by rotation of the rocker-rotation support member while braking the rotation when the striker crashes into the center pillar, and a rocker rotation braking plate fixed portion configured to fix another end side of the rocker-rotation braking plate.
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公开(公告)号：US20240062590A1
公开(公告)日：2024-02-22
申请号：US18269196
申请日：2021-12-22
申请人： AVL List GmbH
发明人： Philipp Quinz , Marijn Hollander , Rainer Vögl
IPC分类号： G07C5/02 , G01M17/007
CPC分类号： G07C5/02 , G01M17/007
摘要： In order to simplify the execution of test drives with a test vehicle which is controlled by a test driver so as to complete a test case, according to the invention, for each test case (TFj) a start condition (SBj) is defined on the basis of at least one sensor signal (S) of a vehicle sensor of the test vehicle and stored in the memory unit together with the associated test case (TFj), wherein each start condition (SBj) defines a particular vehicle state, at least one sensor signal (S) that represents a current vehicle state is recorded by at least one vehicle sensor during the test drive, and the at least one sensor signal (S) is transmitted to a test unit, the test unit reads out the start condition (SBj) of at least one stored test case (TFj) from the memory unit and, during the test drive, the test unit checks whether the vehicle state stored for the read-out start condition (SBj) and the current vehicle state represented by the recorded sensor signal (S) match, and, if they match, the test driver completes the test case (TFj) assigned to the read-out start condition (SBj), in that said test case (TFj) is started, and the test driver is provided with the test steps (TSn) defined in this test case (TFj) for attention, and the test driver performs these test steps (TSn).
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8.发明授权公开(公告)号：US11906396B1
公开(公告)日：2024-02-20
申请号：US16999903
申请日：2020-08-21
IPC分类号： G01M9/06 , G01M9/08 , G07C5/08 , G07C5/00 , G01M17/007
CPC分类号： G01M9/06 , G01M9/08 , G01M17/007 , G07C5/008 , G07C5/0816
摘要： Methods of determining resistive coefficients of a vehicle include using a force-based analysis method and a work-energy analysis method. The methods include receiving an input on a mobile device to initiate a test protocol along a path. The mobile device records a set of measurements for determining a drag area coefficient and a coefficient of rolling resistance for the vehicle using the force-based or work-energy analysis method. For the force-based analysis method, a direct measurement of proper acceleration of the vehicle is measured from an accelerometer on the mobile device. For the work-energy analysis method, a normal force on the vehicle is determined from a direct measurement of proper acceleration from an accelerometer on the mobile device. The mobile device determines the drag area coefficient and the coefficient of rolling resistance based on the set of measurements using the force-based or work-energy analysis method.
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公开(公告)号：US11906292B2
公开(公告)日：2024-02-20
申请号：US17594331
申请日：2020-04-08
发明人： Stefan Hiermaier , Randolf Hanke , Siegfried Nau , Stefan Moser , Norman Uhlmann , Jens Fritsch , Malte Kurfiss , Rolf Behrend , Ines Butz
IPC分类号： G01B15/06 , G01M17/007 , G06T7/00
CPC分类号： G01B15/06 , G01M17/0078 , G06T7/0004 , G06T2207/10128
摘要： An example of a method for time-resolved calculation of a deformation of a body comprises calculating (110) a model of the body during the deformation. The method further comprises calculating (120) a predicted X-ray image for the body for a plurality of time points during the deformation based on the model. The method further comprises obtaining (130) one measured X-ray image of the body each for the time points during the deformation. The method further comprises modifying (140) the model based on the predicted X-ray images and the measured X-ray images.
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公开(公告)号：US11898935B2
公开(公告)日：2024-02-13
申请号：US17531188
申请日：2021-11-19
IPC分类号： G01M17/007
CPC分类号： G01M17/0074
摘要： A test apparatus for simulating road conditions for a motor vehicle. The test apparatus includes a platform, a pair of roller assemblies, and a driveshaft. The pair of roller assemblies are coupled to the platform. Each pair of roller assemblies being configured to receive a pair of wheels of the motor vehicle. The driveshaft is secured between the pair of roller assemblies and is configured to transmit rotary power from one of the pair of roller assemblies to the other of the pair of roller assemblies. An orientation of the platform is adjustable.
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