LTS Tour: HOME
LTS is a comprehensive computer simulation which allows chassis designers and
race engineers to investigate the effects of car, driver, tire and
environmental variables on performance on a race course.
The program predicts a car's limit performance -- turning, braking,
accelerating -- at each point on the race track subject to chassis,
engine/transmission, aerodynamic, and tire data. The car's performance at any
point on the track is subject to not only its past history, but also its future
requirement for upcoming corners. A "perfect" driver or a driver who is
unable/unwilling to use the total capability of the car can be modeled.
LTS is run via a Windows front end, shown at right, or through a DOS-box
interface. Inputs are provided through a series of files which are, with small
exceptions such as program control information, compatible with MRA's other
comprehensive simulation programs. The vehicle model is lumped-parameter
(making use of kinematics and compliance data), contains detailed
engine/gearbox and aerodynamic representations, and allows for a fully
asymmetric vehicle. Several options are provided for automating parameter
studies of various car parameters.
Output from LTS includes lap time and average speed as well as over 100 vehicle
variables at up to 2000 locations around the track. These variables are
analogous to those measured with on-board instrumentation and include many
which cannot be measured directly on a real vehicle. Several export formats are
provided for analysis of the data with spreadsheet programs and popular data
The ability to simulate (or predict) vehicle performance and handling lets the
user study trends -- changes in performance resulting from setup changes. With
LTS it is possible to try a wide variety of different configurations in a short
time. A validated computer simulation makes it possible to run extensive
parameter studies at a low cost when compared to track testing.
Given reliable input data, current LTS customers are using the model to generate
car setups prior to race weekend.
Purchase of an LTS license includes the LTS program, the LTS Track utility, the
LTG plotter, sample data files, one day of training at MRA, a 180 page User's
Manual and support by MRA. MRA's intent is to ensure that the purchaser can
take full advantage of the simulation.
Follow the links below to take a tour of LTS.
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