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Automotive Applications. Paul Goossens Director Applications Engineering pgoossens@maplesoft.com. Automotive Applications. Powertrain. Powertrain : Engine, Transmission, Drivetrain. Powertrain : Mean-value Engine. Inlet Manifold. Engine Power. External Load ( dyno ). Controller.
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Automotive Applications Paul Goossens Director Applications Engineering pgoossens@maplesoft.com
Automotive Applications Powertrain
Powertrain: Mean-value Engine Inlet Manifold Engine Power External Load (dyno) Controller Throttle Speed, Torque Energy Consumption Standard Equations (Maple Custom Components)
Engine Startup with Battery Alternator/Charge Control Battery Heat Dissipation Mechanical Load Starter Sequence
Automotive Applications Steering
Automotive Applications Electric vehicles
Battery Model Thermal Efficiency (lookup) Energy Loss (thermal) State of Charge with low-charge voltage degradation (lookup) Charge Saturation (lookup)
Simulation Results Battery Current Battery Voltage State of Charge Battery Temperature Mechanical Load: Speed Mechanical Load: Torque
Battery-Electric Vehicle • MapleSim realization of battery electric vehicle • Powered by a lead-acid-battery NSERC/Toyota/Maplesoft Industrial Research Chair in Mathematics-Based Modelling and Design 16
Chen and Rincón-Mora battery • Electric circuit battery model NSERC/Toyota/Maplesoft Industrial Research Chair in Mathematics-Based Modelling and Design 9
Chen and Rincón-Mora battery • Comparison with actual battery discharge NSERC/Toyota/Maplesoft Industrial Research Chair in Mathematics-Based Modelling and Design 10
Hydraulics: Pressure Regulator Pressure Regulator
Automotive Applications Vehicle dynamics
Full-Chassis Model • Tire Model • Fiala • Calspan • Pacejka • User-defined
Automotive Applications Hardware-in-the-loop testing
Control systems design process Plant modeling HIL test Controllerdesign Reduce plant modeling time from months to days Fastest plant models for HIL testing (10x) Target
Faster real-time simulation Model optimization and simplification Unique multibody model formulation Optimized code generation More systems become feasible for RT simulation
63ms Cycle Time Real-Time Performance…
Example: Stability Control Test System • Host PC with… • MapleSim • Full-chassis model • Connectivity Toolbox • LabVIEW • Simulation Module Control Output Display • PXI Chassis • LabVIEW/RT Controller Module MotoTron Stability Controller Digital Out CAN bus Interface
Vehicle Model • Tire Model • Fiala • Calspan • Pacejka • User-defined
Model Code Generation to LabVIEW Code Generation of Model for LabVIEW Vehicle Model loaded on to LabVIEW/Real-Time Bicycle Model Controller loaded on to Prototype Controller LabVIEW Operator Interface
Without Stability Controller With Stability Controller