Boosting technologies

Boosting systems are a key technology enabler for Gasoline Engine Downsizing to ensure acceptable performance whilst increasing efficiency.


Our Approach

MAHLE Powertrain has been at the forefront of boosting technology development for many years. We have a detailed understanding of the complex interaction between the combustion, gas flow and energy management processes within the engine. This knowledge and experience is vital for the achievement of good low-speed torque and rapid transient response from boosted gasoline engines. Our downsizing demonstrator engine shows that performance and fuel economy can both be delivered when a highly boosted engine is fully optimised.

• Experienced in all aspects of engine boosting & valve train technologies
  
• Design backed up by detailed simulation
• Single, two-stage and supercharging systems
• Twin-scroll, variable flow and variable geometry designs
• Torque boost CamInCam® technology
  
• Access to support from BOSCH MAHLE Turbo Systems
• Specific outputs up to 100 kW/I (single turbo) and 120 kW/I (2-stage turbo)

Our Tools, Facilities and Services

• Boosting system modelling and optimisation using GT-Power 1D-cycle simulation
• State of the art engine dynamometer facility offers steady state and transient test capability for all engines from mini-car to super-car
• Powertrain integration into vehicle including concept and demonstrator builds for transient assessment

Customer Benefits

• MAHLE Powertrain's history of applying and optimising boosting systems
• From high performance engines through to state of the art downsize engines
• Experience of boosting system design for high Brake Mean Effective Pressure (BMEP) operation
• Engine system and component knowledge backup of the MAHLE Group - one of the world's top 3, Tier 1 engine technology suppliers

Project Examples

• MAHLE Advanced downsizing demonstrator engine and vehicle - 30 bar BMEP and up to 120 kW/I (single and 2-stage turbocharger)
• Ford Escort Cosworth
• Audi RS6
• MAHLE Torque boost CamInCam® application on 4 cylinder turbocharged direct injection DOHC engines to improve low end torque