Demonstrator-JLR: The coupling of Advanced Gasoline Combustion & Ultra Responsive Boost System to support CO2 Emission Targets
Follow the links below to find more results related to the coupling of Advanced Gasoline Combustion & Ultra Responsive Boost System to support CO2 Emission Targets
Deliverable:
D1.11 3D CFD simulation method for in-cylinder soot simulation
D3.2 Layout Combustion System CFD
D3.6 on the water & gasoline spray investigations and PWI vs. DWI engine investigation
Publications: zenodo
The full poster and presentation
Lean Combustion Requires
- Higher air delivery to the cylinders
- Efficient turbocharging at low exhaust gas enthalpy conditions
- Swift transient response to air mass flow demand (lean switch)
Selected Boosting Architecture
- Variable geometry/nozzle turbine (VNTTM) with integrated wastegate
- 48V Electric compressor
GEN2 E-Compressor
Electric Compressor downstream of VNT turbo
Air-Fuel Ratio Switch
Achieved Performance
- 175 Nm steady state torque under lean operation (11 bar BMEP)
- Seamless lambda switch in less than 0.5 s (1700 rpm, stoich. to λ = 2 in simulation, λ = 1.6 on engine)
- Turbine efficiency increase by up to 3pts thanks to design optimization
- Gen2 E-Compressor with peak power of up to 8.5 kW
