Motorsports
Services

OptimumG engineers will define and run a test plan that fits your performance concerns and budget.

• Measuring CG suspended, non-suspended, and total masses CG coordinates along with roll, pitch, and yaw inertia. Test results are indispensable because they represent inputs of any useful steady-state and transient simulation.
• Using a Coordinate Measurement Machine (CMM) to assess all the kinematics point coordinates and/or to ensure these point coordinates correspond to the information the car manufacturer shared.
• Inputting tires and chassis positions, forces and moments as well as steering angle that represent specific track conditions (acceleration, braking, cornering, bumps, and a combination of all these inputs) and measure real cambers, toes, roll, pitch centers, bump steer, steering ratio, and Ackerman, etc.
• Comparing K&C test results with pure kinematics to understand where the biggest compliance comes from in order to either:
• Take these results into account for the car setup
• And/or to improve future car design.
• Offering a comprehensive report with test data analysis and advice on how to use the test data in car simulation, setup, and design improvements.

• We can characterize the vehicle suspension.
• We use results to create a reliable and accurate vehicle model.
• We can uncover problems with your car’s design and manufacturing process with the test results.

Yaw Moment Method simulations show how different vehicle subsystems (tires, suspension, aerodynamics, drivetrain, etc.) influence a vehicle’s handling and performance. The method also shows how vehicles respond in different situations, so detailed information on the track isn’t necessary to run a simulation.

This simulation’s outputs include fundamental characteristics such as grip, balance, stability, and control. Examples:

• How much understeer does the car have in a high-speed corner?
• How is the stability during hard braking?
• How much does the balance shift when throttle is applied?

OptimumG has successfully used this kind of simulation for both racecars and passenger cars.

One of the phrases that OptimumG’s founder, Claude Rouelle, often uses is: “If you don’t know why you win, you won’t know why you lose.” You can win once, maybe by luck, but you won’t repeat the victory unless you understand, qualify, and quantify how all parts of the vehicle must work in cohesion to have an outstanding result.

OptimumG’s performance engineers offer their knowledge, skills, and experience to racing customers in

• Lab and on-track measurements, and modeling of critical parts of cars such as tires, kinematics and compliance, aerodynamic maps, damper, spring, anti-roll bars, and dampers.
• Use of these models in simulation to evaluate the influence of these parts on performance.
• Validation of the simulation. Without validation, a simulation is just an academic exercise where neither OptimumG engineers nor their customers would have confidence.
• Refining the loop by decreasing the gap between performance prediction (simulation) and reality (on-track test or race data analysis). This allows for an efficient and useful simulation that will help the race engineers to make quick and correct decisions on car setup modifications.
• Using specific simulation methods such as batch runs and optimization to create a ready-to-use tool box of setup modifications depending on driver complaints and test or race data.

Whether it’s for the car they work on or their competitors’ cars, OptimumG engineers have extensive experience with race strategy software that factors in weather, fuel, tire wear, lap time, sector time, lap, driver skills, etc., to make the best possible decisions.