固定成本仿真

定步长、固定成本能力评估；求解器选择；平衡速度和准确度

您为模型指定的定步长求解器类型、步长和迭代次数会影响实时仿真的速度和准确度。实时仿真工作流可帮助您选择固定成本求解器设置，使您的模型能够在目标机上运行而不会超限。

函数

simscape.getLocalSolverFixedCostInfo Determine iteration requirement when transitioning to fixed cost (自 R2021b 起)

Real-Time Simulation Workflow
Configure the solvers in your Simscape™ model for real-time simulation.
Fixed-Cost Simulation for Real-Time Viability
Avoid real-time simulation overruns by choosing a step size and number of iterations that limit the computational cost of simulating your Simscape model.
Solvers for Real-Time Simulation
The fixed-step solver, step size, and number of iterations that you specify affect how your Simscape model simulates in real time.
Determine System Stiffness
Choose the right solver for fixed-cost simulation based on the numerical stiffness of your model.
Choose Step Size and Number of Iterations
Optimize your Simscape model for real-time simulation and avoid overruns by specifying a combination of step size and number of iterations that provides acceptable accuracy and speed.
Estimate Computation Costs
Determine if your Simscape model is likely to cause an overrun when you simulate it on your real-time target machine by estimating computational costs.
Troubleshooting Real-Time Simulation Issues
Solve issues that cause your Simscape model to overrun during real-time simulation by using real-time workflows and Performance Advisor checks.