3 days MOT/REFEM-E
- Engineers and technical staff from engine design and testing involved in thermal behavior and energy management, including cooling system designers.
- This course provides a deeper knowledge and competencies on engine thermal behavior and the vehicle energy management through “external” cooling systems.
- Upon completion of the course, participants will be able to:
- know the main associated stakes,
- implement a new engine in a new vehicle,
- quickly size the cooling system and suggest the required trade-offs.
- Engine fundamentals knowledge would be better.
Ways and means
- This training uses simple exercises of cooling system sizing, giving orders of magnitude.
- Clear progression from simple cooling loop up to very complex thermal management of hybrid electric vehicles.
- In parallel many components, new, used or faulty will be circulated.
- The last 0.5-day is dedicated to simulation of various in-use situations.
Engine cooling & external circuits 0.4 day
- Engine cooling requirements, cooling systems types, convection air system, induced air system, liquid system.
- Engine heat balance, thermal power to be evacuated.
- Automotive liquid cooling circuit architectures, engine internal component (water pump, thermostat), external components (exchangers, fans, …), split-cooling, coolant, non-automotive applications.
Impact on vehicle - How do the internal components work? 0.4 day
- Cooling air circuit: air inlet, electric fan.
- Coolant circuit: main radiator, engine oil cooler, transmission oil cooler, EGR cooler, passenger compartment heater core, charge air cooler, expansion tank, degassing tank.
Control & driving - Approach to energy management 0.5 day
- Control parameters: temperature, pressure, flow.
- Control units, sensors: thermostat, thermal switch.
- Control units, actuators: driven thermostat, motorized shutters, multi-ways valves.
Thermomanagement - Thermal & energy management 0.5 day
- Objectives of thermal management.
- Different ways for thermal management: electric water pump, split-cooling, multiways valves, multi temperature loops, multi-fluids loops.
- Management of the passenger cab thermal comfort/fuel economy/emissions/reliability trade-off: emissions constraints, fuel economy constraints.
- Strategies for thermal recovery: storage, exhaust calories recovery with a Rankine cycle, exhaust calories recovery with thermo-electricity.
Thermal & energy management of hybrid & electric vehicles 0.5 day
- Objectives of the thermal management.
- Passenger cab thermal management: use conditions, critical conditions, impact on fuel economy, solutions.
- Thermal management of electric components: objectives, solutions for thermal/electric hybrids, solutions for full electric vehicles.
Under hood thermics 0.5 day
- Identification of heat sources, impact of exhaust gas after-treatment systems.
- Temperatures, hot air flow, components protection through thermal barrier, convective cooling or liquid cooling. Passenger cab thermal insulation.
Simulation exercises 0.5 day
- Application of the above chapters.
- Sizing of the main cooling system components.
- Simulation of the most severe in-use situations (max speed, hill climbing with trailer, zero flow) with GT Power software.
- Choice of thermal strategy and components selection.