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       The virtual test site is a technology that can provide the entire vehicle development process from design to evaluation. In the design phase, RTI's SimVehicleLT can depict many kinds of cars through modeling simulation. Simulation and operation are played by RTI's SimCreator and SimObserver. SimCreator is a vivid and hierarchical real-time simulation and modeling system, which can quickly and conveniently develop distributed simulation model. RTI also provides SimObserve with a database for the most advanced analysis, and SimObserve is an independent system that can record multiple independent source digital images and data.

Virtual test field composition diagram

 


Modeling
       •  According to automotive design requirements, it is converted into design parameters;
       •  Output the car design parameters to SimCreator;
       •  Create test tracking environment and test scenarios;
       •  Create C/C++ control, dynamics, and simulation components;
       •  Test vehicle design and control system is more real-time, faster.
Simulation
       •  Control simulation;
       •  Design operating environment (cab, power, monitor, voice, etc.);
       •  Integrate multiple vehicle configurations locally or globally;
       •  Record, digital save and simulation.
 

Test
       •  Prediction/vehicle performance;
       •  Determine the optimal vehicle configuration;
       •  Reducing data elements & performing statistical analysis;
       •  Validate the data element & time flag in the form of a chart.
 
Virtual test field - driving simulator hardware platform
       •  Sensor for driving and driving signals;
       •  Base motion control computer and steering wheel force feedback system;
       •  Vehicle dynamics computing. (one to multiple);
       •  Graphics rendering computers (one to multiple);
       •  Image projection system and sound system.
    
 Hardware platform architecture diagram.                                                               Hardware platform physical map

 


       •  Vehicle dynamics simulation experiment;
       •  Simulation experiment of vehicle suspension chassis system;
       •  Ergonomic research;
       •  Special vehicle driving training;
       •  Development of multi-vehicle combat simulation system;
       •  As a demonstration platform, enhance image;
       •  Establish the vehicle hardware in the loop simulation system;
       •  Development of auxiliary driving system and unmanned driving system;
       •  Research in the field of traffic safety.
 

 


       •  The calculation of vehicle dynamics supports the use of multi-nuclear technology for distributed computing;
       •  Support for distributed computing through Ethernet connections;
       •  Ensure the real-time operation of the model;
       •  The cockpit base can be fixed, 1 degree of freedom, 3 degrees of freedom or 6 degrees of freedom;
       •  For multi-projector system, each projector needs a graphics rendering computer;
       •  High fidelity graphics rendering technology.

 


SimCreator development environment
       SimCreator provides users with a rich library of modules. When building a simulation model, the user only needs to select the corresponding module from the module library and make a connection, so that various dynamic models can be established quickly.

Professional module library including:
       •  The professional module library includes;
       •  Vehicle module library;
       •  Track vehicle module library;
       •  Power assembly module library;
       •  View module library.

Product features:
       •  It has the professional muddy road tire model to make the vehicle more accurate in the off-road condition simulation;
       •  In real time, the force of each wheel and ground on the XYZ axis is shown, and the stress state of the wheel is observed more intuitively.
Screenshot of scene effect

Simulation data recording and analysis
       •  When the SimCreator simulation system is running, the user can set the data that needs to be recorded, and the state variables can be recorded in the simulation process;
       •  The recorded data can be exported to a variety of commonly used data formats for analysis and use;
       •  In SimCreator, the recording data can also be illustrated and analyzed;
       •  Simulink is suitable for constructing logical relation model and control model;
       •  In collaboration with Matlab/Simulink, the user can combine the Simulink model with the SimCreator model through s-function for collaborative simulation.

SimVehicle LT vehicle dynamics simulation model
       SimVehicle LT is a dynamic model with high fidelity, multi-body and real time. It establishes a four-wheel high fidelity real-time vehicle dynamics model, including the editing of vehicle data and the creation of a new vehicle model graphical user interface software. The SimVehicle LT can be used in the loop simulator and the hardware in the loop emulator. SimVehicle simulates all corners with a six-degree-of-freedom component. The brake pedal, gear and accelerator pedal are used to calculate the torque of the wheel. Each Angle comprises a spring and damping ratio, a buffer, a stop rod, a recoil nodular geometry and a roller height. The mass that is not installed on the spring as an independent part is connected to the main structure by the prism. The SimVehicle LT is developed by SimCreator's C code generation capability.

Model diagram
Functional Features
       •  Testing automobile design before expensive prototype design;
       •  The ECU is evaluated by using hardware in loop simulation;
       •  Developing control strategies in a stable software environment;
       •  Test the use of durable vehicle model operation in the ring performance.
 
 
 
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