Sam Akehurst &ndash; Research Output

2019

Sub-23 nm particulate emissions from a highly boosted GDI engine

Akehurst, S., Lewis, A., Turner, J., Leach, F. & Richardson, D., 14 Sep 2019.

Research output: Contribution to conference › Paper

2018

Development and Optimisation of an Adaptive Safety Monitor

Akehurst, S., Hillis, A. & Botes, F., 3 Apr 2018.

Research output: Contribution to conference › Paper

Powertrains

Fault detection

Monitoring

Availability

Calibration

1 Citation (Scopus)

Octane Response of a Highly Boosted Direct Injection Spark Ignition Engine at Different Compression Ratios

Akehurst, S., Lewis, A. & Giles, K., 3 Apr 2018.

Research output: Contribution to conference › Paper

Direct injection

Internal combustion engines

Engines

Antiknock rating

Fuel economy

2017

1 Citation (Scopus)

Numerical investigation into the performance and efficiency trade-off for a mechanically decoupled electric boosting system

Liu, Y., Burke, R., Akehurst, S. & Zhang, Q., 16 Oct 2017.

Research output: Contribution to conference › Paper

2016

1 Citation (Scopus)

A Study on Dynamic Torque Cancellation in a Range Extender Unit

Liu, D., Rodrigues, L., Brace, C., Akehurst, S., Kirkpatrick, G. & Ash, L., 5 Apr 2016.

Research output: Contribution to conference › Paper

Torque

Electric machinery

Engines

Electric losses

Torque control

2 Citations (Scopus)

Development of a Low Cost Production Automotive Engine for Range Extender Application for Electric Vehicles

Agarwal, A., Lewis, A., Brace, C. & Akehurst, S., 5 Apr 2016.

Research output: Contribution to conference › Paper

Electric vehicles

Engines

Fuel economy

Exhaust manifolds

Costs

2015

Study on the Effects of EGR Supply Configuration on Cylinder-to-Cylinder Dispersion and Engine Performance Using 1D-3D Cosimulation

Dimitriou, P., Burke, R., Copeland, C. & Akehurst, S., 17 Nov 2015.

Research output: Contribution to conference › Paper

Exhaust gas recirculation

Engine cylinders

Engines

Air intakes

Turbulence

2014

2 Citations (Scopus)

Characterisation of torque converter dampers: A novel method for exciting dampers through torque pulsation generation

Aurora-Smith, A., Akehurst, S., Brace, C., Bannister, C., Wicksteed, B. & Biggs, S., 1 Jan 2014.

Research output: Contribution to conference › Paper

2 Citations (Scopus)

Experimental and analytical investigation of implementing a ball bearing turbocharger on a production diesel engine

Zhang, N., Burke, R. D., Duda, T., Brace, C. J., Akehurst, S., Capon, G., Dowell, P. G. & Davies, P., 13 May 2014.

Research output: Contribution to conference › Paper

Fuel effects in a downsized, highly boosted direct injection spark ignition engine

Campbell, S., Remmert, S., Cracknell, R., Schuetze, A., Warnecke, W., Lewis, A., Akehurst, S., Turner, J. W. G., Patel, R. & Popplewell, A., 2014.

Research output: Contribution to conference › Paper

Model-based Optimal Control of a Hybrid Electric Vehicle Using Stochastic Dynamic Programming

Vagg, C., Akehurst, S., Brace, C. J. & Ash, L., 15 May 2014.

Research output: Contribution to conference › Paper

Hybrid vehicles

Dynamic programming

Controllers

Dynamometers

Chassis

Octane appetite: The Relevance of a Lower Limit to the MON Specification in a Downsized, Highly Boosted DISI Engine

Remmert, S., Campbell, S., Cracknell, R., Schuetze, A., Lewis, A., Giles, K., Akehurst, S., Turner, J. W. G., Popplewell, A. & Patel, R., 13 Oct 2014. 13 p.

Research output: Contribution to conference › Paper

Engines

Specifications

Engine cylinders

Combustion knock

Direct injection

2 Citations (Scopus)

Simulation study of divided exhaust period for a regulated two-stage downsized SI engine

Hu, B., Brace, C., Akehurst, S., Copeland, C. & Turner, J., 13 Oct 2014.

Research output: Contribution to conference › Paper

2 Citations (Scopus)

Split exhaust period for extremely downsized turbocharged SI engine

Hu, B., Brace, C. J., Akehurst, S., Copeland, C. & Turner, J. W. G., 2014.

Research output: Contribution to conference › Paper

25 Downloads (Pure)

Wear mechanisms in polyoxymethylene (POM) spur gears

Evans, M., Akehurst, S. & Keogh, P., 2014, p. 2591-2594. 4 p.

Research output: Contribution to conference › Paper

File

2013

6 Citations (Scopus)

A driver advisory tool to reduce fuel consumption: SAE Technical Paper 2012-01-2087

Vagg, C., Brace, C., Hari, D., Akehurst, S. & Ash, L., 10 Mar 2013.

Research output: Contribution to conference › Paper

Fuel consumption

Driver training

Engines

Regenerative braking

Commercial vehicles

2 Citations (Scopus)

113 Downloads (Pure)

Development and testing of a low cost high performance hybrid vehicle electric motor: SAE Technical Paper 2013-01-1760

Hari, D., Brace, C., Vagg, C., Akehurst, S., Ash, L. & Strong, R., 8 Apr 2013.

Research output: Contribution to conference › Paper

Open Access

File

Electric motors

Hybrid vehicles

Testing

Torque

Costs

4 Citations (Scopus)

66 Downloads (Pure)

Minimizing battery stress during hybrid electric vehicle control design: Real world considerations for model-based control development

Vagg, C., Brace, C. J., Akehurst, S. & Ash, L., 2013, p. 329-334. 6 p.

Research output: Contribution to conference › Paper

Open Access

File

Hybrid vehicles

Dynamic programming

Powertrains

Dynamometers

Chassis

Predicting the trade-off between turbine inlet temperature and engine fuel economy in a turbocharged gasoline engine

L Smith, G Capon & K Zhang, 6 Jun 2013.

Research output: Contribution to conference › Paper

10 Citations (Scopus)

Simulation study of the series sequential turbocharging for engine downsizing and fuel efficiency: SAE Technical Paper 2013-01-0935

Zhang, Q., Brace, C., Akehurst, S., Burke, R., Capon, G., Smith, L., Garrett, S. & Zhang, K., 16 Apr 2013.

Research output: Contribution to conference › Paper

1 Citation (Scopus)

73 Downloads (Pure)

Test and simulation of variable air gap concept on axial flux electric motor

Liu, D., Hari, D., Vagg, C., Ash, L., Akehurst, S. & Brace, C. J., 2013, p. 174-179. 6 p.

Research output: Contribution to conference › Paper

Open Access

File

Electric motors

Fluxes

Air

Powertrains

Torque

4 Citations (Scopus)

Ultra boost for economy: realizing a 60% downsized engine concept

Lewis, A. G. J., Brace, C. J., Akehurst, S., Turner, J., Popplewell, A., Richardson, S. & Bredda, S. W., 19 Nov 2013.

Research output: Contribution to conference › Paper

2012

Estimated total energy transfer over an NEDC through steady state state performance evaluation

Lewis, A., Akehurst, S., Brace, C., Robinson, K. & Pegg, I., 2012. 9 p.

Research output: Contribution to conference › Paper

Energy transfer

Coolants

Engine cylinders

Combustion chambers

Fuel consumption

Multivariate analysis of engine emissions and fuel consumption during warm-up

Burke, R., Brace, C. & Akehurst, S., Nov 2012.

Research output: Contribution to conference › Paper

17 Downloads (Pure)

Study of the behaviour of an exhaust gas heat exchanger for improved engine warm-up

Burke, R., Brace, C., Akehurst, S., Pegg, I. & Stark, R., 2012.

Research output: Contribution to conference › Paper

File

The effect of advance combustion control features on the performance of a highly downsized gasoline engine

Giles, K., Lewis, A., Akehurst, S., Brace, C. & Luard, N., 2012, p. 105-117. 11 p.

Research output: Contribution to conference › Paper

Cams

Gasoline

Engines

Torque

Engine cylinders

The effect of advanced combustion control features on the performance of a highly downsized gasoline engine

Lewis, A., Akehurst, S., Brace, C. & Giles, K., 27 Nov 2012. 11 p.

Research output: Contribution to conference › Paper

Cams

Gasoline

Engines

Torque

Engine cylinders

2011

The application of the Milner CVT as a novel power splitting transmission for hybrid vehicles: SAE Technical Paper 2011-01-0890

Moyers, J., Akehurst, S., Parker, D. A. & Schaaf, S., 12 Apr 2011.

Research output: Contribution to conference › Paper

2010

6 Citations (Scopus)

Advanced Mapping Techniques for Radial Compressor for Use in Real-Time Engine Models: SAE Technical Paper 2010-01-1227

Akehurst, S. & Dowell, P., 13 Apr 2010.

Research output: Contribution to conference › Paper

Extrapolation

Compressors

Interpolation

Engines

2 Citations (Scopus)

Dynamic measurement of heat flux through the cylinder wall of a modern HSDI engine over a new European drive cycle

Lewis, A. G., Akehurst, S., Brace, C., Finol, C. & Robinson, K., 12 Apr 2010.

Research output: Contribution to conference › Paper

Engine cylinders

Heat flux

Engines

Fuel injection

Coolants

10 Downloads (Pure)

Engine and Combustion Stability over extended Operating Range using Engine Thermal Management in Calibration Procedure

Burke, R., Brace, C. & Akehurst, S., 2010.

Research output: Contribution to conference › Paper

File

2009

Development of a design tool for modelling and optimisation of the Milner CVT

Akehurst, S., Moyers, J., Hunt, A. & Schaaf, S., 13 May 2009.

Research output: Contribution to conference › Paper

Design of experiments

Contacts (fluid mechanics)

Roller bearings

Traction (friction)

Geometry

3 Citations (Scopus)

The design of a Milner CVT using simulation based design of experiments

Akehurst, S., 20 Apr 2009.

Research output: Contribution to conference › Paper

Design of experiments

Roller bearings

Packaging

Durability

Engineers

2008

2 Citations (Scopus)

A Multiple Factor Simulation and Emulation Approach to Investigate Advanced Air handling Systems for Future Diesel Engines

Akehurst, S. & Piddock, M., Apr 2008.

Research output: Contribution to conference › Paper

Diesel engines

Engines

Air

Air engines

Compression ratio (machinery)

2007

A novel approach to investigating advanced boosting strategies of future diesel engines

Akehurst, S. & Piddock, M., 11 Dec 2007, p. 261-276. 16 p.

Research output: Contribution to conference › Paper

Cooling system changes: developing sound approaches for assessing on-engine system hardware

Piddock, M., Akehurst, S., Hawley, J. G. & Pegg, I., 21 May 2007.

Research output: Contribution to conference › Paper

1 Citation (Scopus)

Engine cooling systems - developing sound approaches for assessing system hardware changes

Piddock, M., Akehurst, S., Hawley, J. G. & Pegg, I., May 2007, p. 311-321. 11 p.

Research output: Contribution to conference › Paper

2006

1 Citation (Scopus)

Design consideration and potential of the Milner CVT

Hunt, A., Akehurst, S. & Schaaf, S., 2006, p. 51-66. 16 p.

Research output: Contribution to conference › Paper

Roller bearings

Testing

Dynamic analysis

Failure modes

Packaging

2004

4 Citations (Scopus)

FEAD configurations focusing on CO2 benefits

Akehurst, S., Hawley, J. G., Pegg, I. & Piddock, M., 8 Mar 2004.

Research output: Contribution to conference › Paper

8 Citations (Scopus)

Potential of a Controllable Engine Cooling System to Reduce NOx Emissions in Diesel Engines

Pang, H. H., Brace, C. J. & Akehurst, S., 8 Mar 2004.

Research output: Contribution to conference › Paper