CATARC AUTOMOTIVE TEST CENTER (TIANJIN) CO., LTD

The present application relates to the field of data consistency testing, and provides a method and device for testing vehicle data consistency in V2X. The method includes: collecting vehicle V2X test data transmitted based on a V2X-PC5 communication protocol; parsing the V2X test data, and determining whether a format and a data value of parsed data conform to a preset definition, and whether the parsed data is consistent with operating data in testing, to obtain a data structure consistency result; calculating an average error value between dynamic data in the parsed data and data collected by a high-precision inertial navigation device when time stamps are aligned and data sampling frequencies are the same; and according to the data structure consistency result and the average error value, determining whether vehicle data conforms to a preset consistency standard.

A skin manufacturing post-treatment method for an automobile collision dummy includes: forming a first pouring portion on a skin layer to be treated, and forming a patching recess by grinding the first pouring portion; obtaining an epidermis layer to be treated, and arranging a heating assembly above the patching recess, where the heating assembly is attached to an interior of the patching recess, and the epidermis layer; and simultaneously heating, by the heating assembly, the patching recess and the epidermis layer to be treated. In this way, the epidermis layer to be treated and an inner wall of the patching recess can be simultaneously heated at the first preset temperature, the epidermis layer to be treated and the inner wall of the patching recess are consistent in temperature, and a connection strength between the epidermis layer to be treated and the inner wall of the patching recess is enhanced.

This application relates to the technical field of connectivity communication, and provides an apparatus and method for testing a connected vehicle's communication distance. The testing apparatus includes a support member, and a first antenna is provided on the support member and connected to a signal transceiver. The signal transceiver is configured to send signals to a tested vehicle or receive signals sent by the tested vehicle. An output terminal of the signal transceiver is connected to an upper computer. Data analysis software is installed on the upper computer, and used for recording a test distance and a number of data packets and calculating a packet loss rate, such that a maximum communication distance is obtained according to the test distance and the corresponding packet loss rate.

Disclosed are a test routes planning method and apparatus of a vehicle on actual roads, a medium and a device. The method includes the following steps: dividing road traffic scenes; calculating traffic scene characteristics based on the divided road traffic scenes; constructing a preliminary road selection database for test routes; and completing a planning of the test routes of the vehicle on the actual roads at different speeds in different traffic scenes by leveraging a genetic algorithm based on the preliminary road selection database for the test routes. The present disclosure provides a solution for planning the test routes of the vehicle on the actual roads. In the solution, the travel speed distribution of a user is obtained through calculation based on traffic flow big data, and the planning of the test routes on the actual roads in different traffic scenes is completed by leveraging the genetic algorithm.

A skin manufacturing post-treatment device for an automobile collision dummy device includes a post-treatment mechanism, where the post-treatment mechanism includes a rotary operation table that is provided with a cutting station, a grinding station, a skin patching station and a removal station in a circumferential direction; the cutting station is configured to cut an injection molding residual material on a surface of a dummy skin, and the grinding station is configured to grind a cut position to form a frustum-shaped patching recess; and the skin patching station is configured to fill the patching recess with a welding skin patching material, and the removal station is configured to clean a skin patching position.

Disclosed is a test device and method for remote control parking, falling within the technical field of testing. The method provided by the present disclosure includes the following steps: responding to a remote control parking instruction sent by a portable terminal, and acquiring position and pose data of a vehicle in real-time; injecting function loss conditions; determining a stopping position of the vehicle according to the position and pose data if an alarm signal or a parking success signal sent by an in-vehicle infotainment system is received; and determining a test result of remote control parking according to the stopping position of the vehicle and the function loss conditions. The present disclosure is used to test the response of a vehicle parking under the function loss condition.

A method for predicting dummy head injury during an automobile collision includes: enabling a dummy head to collide with a rigid flat plate; obtaining a first data set in a collision process; calculating the maximum contact force of the dummy head and the rigid flat plate in the collision process according to the first data set; dividing a duration of the collision process into a plurality of time intervals; and calculating an injury value of the dummy head in each time interval according to the maximum contact force, and selecting the maximum injury value as a target injury value. The method provided by the present application may realize prediction for the head injury under different scene working conditions, and has the advantages of being simple in test flow, and high in prediction precision.

Disclosed are an OTA test method for a vehicle antenna system, a device and a storage medium. According to the method, the radio frequency performance of a physical layer of a whole vehicle antenna system can be tested, and the problem in the prior art that the test result of parts cannot accurately reflect the performance of the whole vehicle antenna system can be solved.

A testing method for a blind spot detection system for an automobile includes: applying an electromagnetic interference signal to the tested automobile through an electromagnetic interference signal application device, meanwhile, simulating a static obstacle or a moving obstacle within a detection range through a testing device, and if the blind spot detection system for the tested automobile is activated, determining that the testing is passed. Repeatable and reproducible testing for the electromagnetic safety of the blind spot detection system may be realized.

An intelligent modeling method of a Selective Catalytic Reduction (SCR) reaction process of diesel vehicle exhaust includes the following steps: S 1 : acquiring a time sequence data set of an SCR reaction process of diesel vehicle exhaust for modeling, where the time sequence data set includes an input variable sequence and an output variable sequence; S 2 : selecting a multi-layer type-II fuzzy neural network as an SCR reaction process model of diesel vehicle exhaust based on the input variable sequence and the output variable sequence obtained in Si. The intelligent modeling method of the SCR reaction process of diesel vehicle exhaust can effectively model dynamic characteristics of the SCR reaction process such as nonlinearity, time delay and uncertain interference, and improve the accuracy, robustness and generalization ability of the SCR reaction process model.