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., 2 Jul 2019, (Accepted/In press).

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

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)

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)

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)

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

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

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