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BR-102024017521-A2 - METHOD FOR COLLECTING VEHICLE DATA THROUGH A TEST CIRCUIT, METHOD FOR EVALUATING VEHICLE PARAMETERS AND COMPUTER-READABLE MEMORY

BR102024017521A2BR 102024017521 A2BR102024017521 A2BR 102024017521A2BR-102024017521-A2

Abstract

The present invention relates to a method for collecting data from a vehicle (200) through a test circuit (100), which is divided into stages “A”, “B”, “C” and “D” in which: A. in stage “A” a vehicle (200), from an initial position, travels forward along a straight length (TR), wherein the straight length (TR) has the same length as the sum of a first length (L1), a second length (L2) and a third length (L3); B. in stage “B” the vehicle (200) first performs, in reverse, a curve of radius (R) to a first side and, in a straight line, a second width (W2); and, after traveling in reverse, in a straight line, the second width (W2), travels forward, performing the curve of radius (R) to a second side; C. in stage “C” the vehicle (200) travels forward the second length (L2); and D. in stage “D” the vehicle (200) first travels forward and performs the radius (R) turn to the first side; and, after traveling forward and performing the radius (R) turn, it travels in reverse, in a straight line, the second width (W2) and performs the radius (R) turn to the second side in order to return to the initial position. The present invention also relates to a method for evaluating vehicle (200) parameters and to computer-readable memories.

Inventors

  • ANTÍDIO DE OLIVEIRA SANTOS NETO
  • VANDERLEI LARA

Assignees

  • ROBERT BOSCH DIREÇÃO AUTOMOTIVA LTDA

Dates

Publication Date
20260310
Application Date
20240826

Claims (20)

  1. 1. Method for collecting data from a vehicle (200) through a test circuit (100), characterized by the fact that it is divided into stages “A”, “B”, “C” and “D” in which: A. in stage “A” a vehicle (200), from an initial position, travels forward along a straight length (TR), wherein the straight length (TR) has the same length as the sum of a first length (L1), a second length (L2) and a third length (L3); B. in stage “B” the vehicle (200) first performs, in reverse, a curve of radius (R) to a first side and, in a straight line, a second width (W2); and, after traveling in reverse, in a straight line, the second width (W2), travels forward, performing the curve of radius (R) to a second side; C. in stage “C” the vehicle (200) travels forward the second length (L2); and D. in stage “D” the vehicle (200) first travels forward and performs the radius (R) turn to the first side; and, after traveling forward and performing the radius (R) turn, it travels in reverse, in a straight line, the second width (W2) and performs the radius (R) turn to the second side in order to return to the initial position; wherein, after completing all stages “A”, “B”, “C” and “D”, a cycle of the method for collecting data from a vehicle (200) through a test circuit (100) is completed; and wherein, during all stages “A”, “B”, “C” and “D”, all signals from the vehicle (200) are monitored in real time and are sent to a computer, or tablet, or cell phone, or any device comprising a processor and a means of transmitting and receiving information, or capable of receiving signals from the vehicle (200) from a central server.
  2. 2. Method for collecting data from a vehicle (200) through a test circuit (100), according to claim 1, characterized in that it performs between four and twenty-two cycles, preferably between six and eighteen cycles.
  3. 3. Method for collecting data from a vehicle (200) through a test circuit (100), according to claim 1, characterized in that at stage “B” the vehicle (200) travels in a straight line the fifth length (L5) after traveling forward and performing the radius curve (R) to the first side.
  4. 4. Method for collecting data from a vehicle (200) through a test circuit (100), according to claim 1, characterized in that at stage “D” the vehicle (200) travels forward in a straight line the sixth length (L6) before performing the forward radius (R) turn to the first side.
  5. 5. Method for collecting data from a vehicle (200) through a test circuit (100), according to claim 1, characterized in that, after performing the tests in stage “D”, the vehicle (200) returns to the initial position, before the start of stage “A”.
  6. 6. Method for collecting data from a vehicle (200) through a test circuit (100), according to claim 1, characterized in that at least one length (TR, L1, L2, L3, L4, L5, L6, L7) and/or at least one width (W1, W2) has at least one section with an unpaved surface covered by obstacles, wherein the obstacles comprise at least one of: rough terrain, steep inclines, uneven surfaces, mud, sand and flooded areas.
  7. 7. Method for collecting data from a vehicle (200) through a test circuit (100), according to claim 1, characterized in that in stage “A”, the vehicle (200) performs static steering and, after performing static steering, travels the first length (L1) in a non-autonomous direction, then travels the second length (L2) in an autonomous direction and travels the third length (L3) in a non-autonomous direction.
  8. 8. Method for collecting data from a vehicle (200) through a test circuit (100), according to claim 1, characterized in that at stage “B”, the vehicle (200) performs the radius curve (R) in non-autonomous direction.
  9. 9. Method for collecting data from a vehicle (200) through a test circuit (100), according to claim 1, characterized in that at stage “C”, the vehicle (200) travels the second length (L2) in autonomous driving.
  10. 10. Method for collecting data from a vehicle (200) through a test circuit (100), according to claim 1, characterized in that at stage “D” the vehicle (200) performs the radius (R) turn to the first side in non-autonomous direction.
  11. 11. Method for collecting data from a vehicle (200) through a test circuit (100), according to claim 1, characterized in that in stages “B” and/or “D” the steering of the vehicle (200) is evaluated.
  12. 12. Method for collecting data from a vehicle (200) through a test circuit (100), according to claim 1, characterized in that the straight length (TR) is between 25% and 40% of the total length of the test circuit (100); the first length (L1) is between 2% and 10% of the total length of the test circuit (100); the second length (L2) is between 12% and 28% of the total length of the test circuit (100); the third length (L3) is between 2% and 10% of the total length of the test circuit (100); the fourth length (L4) is between 1% and 9% of the length of the test circuit (100); the fifth length (L5) is between 1% and 8% of the total length of the test circuit (100); the sixth length (L6) is between 1% and 8% of the total length of the test circuit (100); the seventh length (L7) is equivalent to between 1% and 9% of the length of the test circuit (100); the first width (W1) is equivalent to between 1% and 5% of the total length of the test circuit (100); and the second width (W2) is equivalent to between 2% and 7% of the length of the test circuit (100).
  13. 13. Method for evaluating vehicle parameters (200), characterized in that it comprises the steps of: 1. Initiating the reception, on a computer, or tablet, or cell phone, or any device comprising a processor and a means of transmitting and receiving information, or capable of receiving from a central server, the signals from the vehicle (200); iii. Receiving the signals from the vehicle (200) that simulate the hydraulic working regime of the vehicle (200); v. Evaluating the data collected in steps i and iii to determine the correct functioning of the vehicle (200); vii. Alerting a user, through an alert means, if at least one of the monitored values is outside the appropriate ranges; wherein the signals from the vehicle (200) of step i. are received through the Method for collecting data from a vehicle (200) through a test circuit (100) defined in claim 1.
  14. 14. Method for evaluating vehicle parameters, according to claim 13, characterized in that it further comprises a step ii of: 11. initiating the reception of signals relating to the vehicle's servo-assisted system (200).
  15. 15. Method for evaluating vehicle parameters, according to claim 14, characterized in that it further comprises a step iv of: iv. Receiving signals from the vehicle (200) that simulate the electro-electronic operating regime of the vehicle (200).
  16. 16. Method for evaluating vehicle parameters (200), according to claim 15, characterized in that step v additionally comprises a step of: v. Evaluating the data collected in steps ii and iv, to determine the correct functioning of the vehicle (200).
  17. 17. Method for evaluating vehicle parameters (200), according to claim 16, characterized in that it further comprises a step vi of: vi. Displaying, on a human-machine interface, or transmitting, to a device comprising a processor and a means of transmitting and receiving information, one or more graphs that synthesize and illustrate the operational parameters of interest of the vehicle (200).
  18. 18. Method for evaluating vehicle parameters (200), according to claim 13, characterized in that it further comprises a step for receiving initial data from a vehicle (200), either through manual input by a user or automatically through a central server.
  19. 19. Method for evaluating vehicle parameters (200), according to claim 18, characterized in that the initial data of a vehicle (200) from stage i comprises at least one of: chassis; mileage; drive type; year of manufacture; model year; tire calibration pressure; tire condition; controlled mass of the front axle and total vehicle; vehicle steering angles to the left and right; vehicle pitman arm positioning angles to the left and right; and tire position angles to the left and right.
  20. 20. Method for evaluating vehicle parameters (200), according to claim 13, characterized in that the vehicle (200) comprises at least one torque and angle sensor on the steering wheel; wherein the readings/measurements made by said sensor are used in the evaluation of parameters.

Description

Technical Field [001] The present invention belongs to the field of physics, more specifically to digital computing equipment or methods or data processing, especially adapted for specific functions. Introduction [002] The present invention relates to a method for collecting vehicle data through a test circuit, to a method for evaluating vehicle parameters and to computer-readable memories. [003] More specifically, the present invention relates to a method for collecting data from a vehicle, preferably autonomous and off-road, through a test circuit, to a method capable of evaluating the data collected from the vehicle and to computer-readable memories that execute these methods. Fundamentals [004] Vehicle manufacturers need a controlled testing environment to be able to accurately and safely determine vehicle performance. [005] Usually, vehicle test tracks are designed to evaluate the performance, stability, and safety of these vehicles in challenging situations. They generally include tests that simulate sharp turns, rapid changes of direction, hard braking, and evasive maneuvers. [006] These tracks allow manufacturers to assess how vehicles behave in different driving conditions and how they handle tilt and roll. This is fundamental to ensuring the safety of vehicles and their occupants in various driving situations. [007] In addition to drivability parameters, several parameters related to the operation of the engine and/or other vehicle systems can also be evaluated during circuit tests. [008] In particular, off-road vehicles, such as agricultural vehicles, due to their size, tend to have a high center of gravity and this can be a problem on some test circuits. [009] The center of gravity represents the point where all the weight of the vehicle is considered concentrated and is essential for calculating aspects such as load distribution, maximum payload, maneuverability and even the fuel consumption of a vehicle. [010] An example of a test track for vehicles with a high center of gravity is the "moose test." This test is commonly used to assess how a vehicle reacts to an emergency evasive maneuver, simulating the need to swerve around an unexpected obstacle on the road, such as a moose. This test is especially important for vehicles with a "high" center of gravity, such as SUVs and crossovers, as they are more prone to rollovers in situations involving abrupt maneuvers. Performing the "moose test" helps ensure that the vehicle has the necessary stability to handle these situations safely. State of the art [011] Known state-of-the-art solutions for methods and systems for evaluating the parameters of large vehicles of the nature discussed here can be verified in state-of-the-art documents such as US document 2023/0252828, entitled “Method and system for on-site testing of an off-road vehicle intervention system”, which refers to a local test facility and a method for validating an off-road vehicle intervention system on board a utility vehicle, for example, in a mine, using a local test area with a test track and a computer unit configured to emulate a virtual test object generating and transmitting a radio frequency signal corresponding to the radio frequency signal of a real object at risk of collision with the oversized vehicle when a driver is driving the utility vehicle on the test track. [012] The document US 2023/0252828, despite presenting a method and a system for conducting on-site tests, is limited to testing an off-road utility vehicle intervention system by conducting simulations that involve creating situations that enable the activation of a vehicle intervention system (VIS) and evaluating the behavior of this vehicle intervention system. [013] Thus, document US 2023/0252828 does not address a way to evaluate the operational parameters relevant to the steering system of an off-road utility vehicle, limiting itself only to evaluating the behavior of its autonomous vehicle intervention system. [014] Furthermore, although this document teaches about a test track, this track only acts as a means of simulating possible risk situations for the vehicle, in order to “force” the intervention of the vehicle intervention system. [015] Therefore, there is room for an invention that provides a method for testing parameters relevant to the steering system of large vehicles through data obtained during the monitoring of these vehicles on a predetermined route. Objectives of the invention [016] The object of the invention is, therefore, to provide a method for collecting data from a vehicle through a test circuit, according to the characteristics of claim 1 of the attached claims. [017] Another objective of the present invention is to provide a method for evaluating vehicle parameters through a test circuit, according to the characteristics of claim 13 of the attached claims. [018] Another objective of the present invention is to provide a computer-readable memory, according to the characteristics of cla