Software Products Distribution : CarSim

 

Mechanical Simulation Corporation produces software tools for simulating and analyzing the dynamic behavior of motor vehicles in response to steering, braking, and acceleration control and environmental inputs. These software tools are extensively validated and correlated to real world results as measured and observed by many automotive OEMs around the world.

CarSim, TruckSim and BikeSim are VehicleSim products that provide the most accurate and realistic predictions that are possible, in a form that can be easily used by most engineers and technical staff.

CarSim   CarSim simulates the dynamic behavior of all kinds of cars, namely passenger vehicle, utility vehicles, racing vehicles and light trucks. CarSim animates simulated tests and outputs over 700 calculated variables to plot and analyze, or export to other software such as MATLAB, Excel, and other optimization tools. CarSim can be used to design, develop, test and plan vehicle programs. Make better decisions involving vehicle dynamics, and spend less time to prove initial concepts, select components, and perform advanced analysis of existing vehicles. With CarSim's modern graphical user interface, users can run a simulated test, see an animation, or view engineering plots of results. Output plots and animations are obtained with a single mouse click. Besides being versatile and interactive analysis tools, the graphics they produce can be easily inserted into reports and PowerPoint presentations. The CarSim math models are parametric, involving measurable properties that are commonly used by OEM's and suppliers. As a result, CarSim users can usually get results for new vehicles with minimal time.   The CarSim math models cover the complete vehicle system and its inputs from the driver, ground, and aerodynamics. CarSim combines a complete vehicle math model with high computational speed. The software development team at Mechanical Simulation uses the VehicleSim Lisp symbolic multibody program to generate the equations for the vehicle math models. Besides providing correct nonlinear equations for fairly complicated models, the machine-generated equations are highly optimized to provide fast computation.   CarSim models typically run more than ten times faster than real time on a 3 GHz PC, so the user always gets results quickly. CarSim easily supports real-time (RT) testing with hardware in the loop (HIL) systems from most RT suppliers. HIL partners include: A&D, dSPACE, ETAS, Fujitsu TEN and Opal-RT. The fast computational speed also helps integration with software that requires many repetitions (optimization, design-of-experiments, etc.).   CarSim has all the tools the user needs to predict vehicle dynamics behavior in one integrated package, with the capability of working with other software to extend its capabilities even further. It combines the accuracy and validation resulting from decades of research in vehicle dynamics with the ease-of-use associated with modern video games and Internet browsers. CarSim has been validated by the world's largest OEM's who compared CarSim simulated test results to actual proving ground test data.   BikeSim   BikeSim is a tool specifically designed to simulate the dynamic behavior of motorcycles and scooters for engineers who do not have the months or years necessary to learn to use older simulation methods.   BikeSim shares CarSim's core architecture - providing engineers with the power and flexibility to dynamically evaluate virtually any two wheeled production or concept motorcycle. BikeSim analyzes the response to the rider's inputs - steering torque, braking, shifting, throttle, body lean, and lateral shifting of the body mass. Environmental inputs are included - aerodynamics, road geometry and friction. By modeling and controlling the complex interaction between the rider-machine-environment, BikeSim accurately simulates how rider behavior affects the bike's overall performance under any environmental condition. With the 2008 release of BikeSim 2, the math model has been extended to include a full powertrain, full nonlinear kinematics suspension, an enhanced rider positioning control, several enhanced tire model options, additional degrees-of-freedoms, and more extensions needed to provide an accurate simulation of most existing motorcycle design concept.   To satisfy strong demand from academia or motorcycle and scooter manufacturers, BikeSim breaks new ground in offering a low-cost, accurate, and easy-to-use simulation package created specifically for the study of motorcycle dynamics. Over 100 different data input screens in the BikeSim data browser allow users to easily setup the bike properties, roads, and control inputs and quickly see the animations and graphical results. The bike and its properties are defined by parameters and tables that are measurable by tests or available from design software. Users run any simulated road test by just clicking a button. Our fast computational speed is completed in about 1/10 of real time on a 3 GHz PC. Many design variations are tested and automatically optimized using DOE software.   BikeSim runs on Windows desktop or laptop PCs. BikeSim can run with MATLAB/Simulink by providing an S-Function model for importing/exporting all key variables. Users can easily include controller and actuator blocks for ABS, TCS or any new type of sub-system. BikeSim is available in real-time systems to test HIL or SIL for ECU development.   TruckSim   TruckSim is a software tool for simulating and analyzing the dynamic behavior of medium to heavy trucks, buses and articulated vehicles. It operates just like CarSim with a few important differences. Trucks and buses use a different steering system than cars. They can also have dual tires, multiple axle configurations and a wide range of tractor-trailer combinations. TruckSim includes 16 common configurations, in two forms each: (1) with rigid sprung masses, and (2) with frame torsional flexibility. The frame torsional flexibility is an option available (at extra cost) that can give more realistic predictions when the associated frame data are available. Both versions include suspended cabs. Additional truck configurations can be obtained at a reasonable price, and work in the same TruckSim environment. TruckSim comes with example trucks and buses that cover most of the vehicles found around the world. Examples come from North America, Europe and Japan.   TruckSim is built on decades of research in characterizing vehicles and reproducing their behavior with mathematical models. Data screens serve as your primary interface to TruckSim. They contain vehicle model parameters, control inputs and other run-time settings. The data screens are part of an extensive database that maintains libraries of linked data sets.   SuspensionSim   SuspensionSim is a multi-body static solver that can be used to model virtually any suspension through the use of available components representing bushings, springs, beams, and bump stops. Most components can be modeled as linear or non-linear elements. Many standard solution types are available to simulate contemporary testing facilities. There are over 90 static suspension design factors that are computed and can be plotted or printed. Engineers use SuspensionSim in the design, development, and analysis of vehicle suspensions. Using SuspensionSim to achieve the desirable kinematic characteristics is a real plus in achieving good vehicle performance. Looking at sensitivity factors within the suspension is extremely useful. SuspensionSim is a static solver and the solution time is generally only a few seconds. Our user feedback is extremely favorable when compared to other suspension analysis tools. SuspensionSim has evolved through decades of experience, dating as far back as the 1970's. The code continues to agree well with test results according to our customers. Model validation has been conducted by some of the world's largest vehicle manufacturers. The graphical user interface (GUI), along with a logical engineering layout, has made model building and change evaluation simple and quick. Various suspension templates are provided that allow a "jump start" in building unique user-defined models. 19 different types of suspensions are easily designed using these templates.   EASi has partnered with Mechanical Software Corporation (MSC) for sales and distribution of CarSim, BikeSim, TruckSim and SuspensionSim.   EASi also offers Lattice3D software , LS-DYNA software , VCollab software and ANSA software.   Interested in learning more about EASi's Software and Services?   Please complete the form below to see how EASi can help. Once submitted, your information will be sent to an EASI professional who will contact you to discuss your inquiry.

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