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Reference Number C4/P23
Title Powertrain Integrated Thermal Systems for Thermodynamically Optimised Performance (PITSTOP)
Status Completed
Energy Categories ENERGY EFFICIENCY(Transport) 50%;
Research Types Applied Research and Development 100%
Science and Technology Fields PHYSICAL SCIENCES AND MATHEMATICS (Physics) 50%;
ENGINEERING AND TECHNOLOGY (Mechanical, Aeronautical and Manufacturing Engineering) 50%;
UKERC Cross Cutting Characterisation Not Cross-cutting 50%;
Sociological economical and environmental impact of energy (Environmental dimensions) 25%;
Sociological economical and environmental impact of energy (Consumer attitudes and behaviour) 25%;
Principal Investigator Project Contact
No email address given
Jaguar Land Rover Limited
Award Type Standard
Funding Source DfT
Start Date 01 December 2001
End Date 31 December 2004
Duration 37 months
Total Grant Value £346,764
Industrial Sectors Transport
Region West Midlands
Programme DfT Cleaner fuels and vehicles
Investigators Principal Investigator Project Contact , Jaguar Land Rover Limited (100.000%)
Web Site
Objectives To increase engine efficiency, reduce CO2 and other emissions and improve fuel economy by minimising the parasitic losses and optimising heat interactions in the powertrain and its cooling system. This will be achieved by the introduction of advanced component designs and the application of novel control strategies for thermal management on the vehicle. A further aim is to improve the comfort levels in the passenger compartment, particularly in the period after cold start and also when the vehi cle is stationary and the engine is switched off under future duty cycles. The vision is of an efficient thermal system having minimum parasitic losses managed by a control strategy integrated with the ECU to deliver maximum powertrain efficiency. Specific objectives of the project include: * Adoption of a systems approach to engine cooling * Energy optimisation of the entire cooling circuit * Application of an electrically-driven coolant pump in conjunction with reconfigured internal cooling passages in the engine to provide efficient cooling and fast warm up * Development of novel heat exchanger designs having high effectiveness and low pressure drop * Investigation of novel designs of fans and pumps having reduced power requirement and lower noise levels * Development of a novel, integrated electronic control strategy to ensure efficient thermal management of the engine and passenger compartment under all operating conditions.
Abstract By 2010, as a consequence of increasing electrical power demand, there will be a move towards 42V electrical systems in vehicles. The advent of this 42V technology will present several significant and exciting opportunities for improving fuel efficiency and reducing CO2 and other emissions. These include the introduction of integrated starter/alternators (i.e. 'soft' hybrid) that will enable rapid, silent starting, an increase in the number of components that are driven electrically rather than mechanically and the introduction of electromagnetically-operated engine valves that will remove the many compromises in valve timing necessary with present-day camshaft-driven systems. In order to realise the full potential of these new systems, innovative control strategies and systems will have to be devised. The proposed project focuses on the design and implementation of thermal management systems and seeks to increase efficiency by minimising the parasitic losses in the water pump and radiator fan, minimising the pressure losses in heat exchangers and optimising the heat transfer in the cylinder head and block. It also seeks to improve emissions by achieving reduced times for engine warm-up following cold start. The key innovation in this project is the treatment of all the thermal processes as a single system rather than a series of individual components. By adopting this integrated approach the performance of the system can be optimised to deliver maximumengine efficiency and acceptable levels of passenger comfort. Issues of cost, weight and packaging will be considered in sufficient detail to gauge the feasibility of volume introduction in 2010 or beyond.
Publications (none)
Final Report (none)
Added to Database 11/01/08