NOx and Particulate Real Drive Emissions (RDE)

This course, which is based on our long standing CPD course on Diesel Particulate and NOx Emissions, was completely revised in 2016 to include real-world driving emissions and the development of European Real Drive Emissions (RDE) legislation and the reasons for modern SI and Diesel vehicles to have higher emissions in real world congested traffic than they do on legislated test cycles. This leads to worse air quality in cities. The technology of SI and Diesel engines for low CO2 is converging and SI engines have significant particulate emissions relative to modern diesels with particulate filters. This is leading to the requirement for Gasoline Particulate Filter for gasoline direct injection engines (GDI), but this is likely to be extended to PFI gasoline in the future as the use of rich mixtures in transient acceleration leads to the generation of soot.

The Real Drive Emissions additions to the course are based on the extensive experience in this area of BOSMAL and Prof. Gordon E. Andrews, both of whom have published on RDE for over 12 years and been researching in this area
for 20 years. This experience includes both SI and Diesel passenger car and truck RDE. Prof. David Kittelson also has considerable experience in on-road emissions measurements with vehicles measuring their own exhausts and for chase vehicles and his work has concentrated on particulate and particle size emissions. The issue of whether current EU proposals for RDE testing address the issue of poor air quality in cities will be discussed, as such RDE testing must include congested traffic and cold start if they are to be realistic. Currently the proposals do not address these issues.

The course covers the sources of emissions of CO, HC, NOx and PM in SI and diesel engines and on the design and
operation of catalytic and particulate emissions reduction systems for both vehicles. The latest technology for emissions reduction from SI and diesel engines is reviewed and the consequences for NOx, CO, HC and PM emissions of CO2 legislation that is making fuel consumption the primary driver in engine development at present. Engine calibration methodology that can reduce fuel consumption at the expense of NOx and PM engine out emissions is reviewed, which leads to RDE problems if the aftertreatment system for NOx and PM emissions cannot cope with the more transient demands of RDE in congested traffic with longer cold starts.

Provisional programme

The 2018 course programme and leaflet will be available approximately 3 months prior to the course. However, you can view and download the 2017 course details for further information by clicking the course leaflet and course programme link.

Day 1: Real-world driving for SI and diesel vehicles, fuel economy and emissions

  • Introduction to the environmental problems of vehicle emissions
  • Real world driving in congested traffic
  • Current developments in RDE legislation and testing (PEMS) for Euro 6c
  • Future developments in WLTP and RDE and PEMS (PN)
  • Real world driving emissions with comparision with test cycles for diesels and SI vehicles
  • Engine exhaust particles in the atmosphere
  • Real world NOx emissions from state of the art diesel buses
  • Cold start PM and PN emissions from PFI and GDI gasoline vehicles

Day 2: Control of engine out NOx and soot emissions in diesel and spark ignition vehicles

  • Diesel engine thermodynamic conditions and turbocharging
  • Ignition delay
  • The  Nissan NK concept with long ignition delays to achieve premixed combustion
  • Diesel and SI engine processes that influence particle formation
  • Factors influencing carbon formation in diesel and SI engines
  • NOx formation and control in SI and diesel engines
  • Ultrafine and nanoparticles in diesel, SI and GDI engines
  • Measurement of ultrafine and nanoparticles from engines, including measurement instruments and measurement uncertainty

Day 3: Hydrocarbons and Three Way Catalysts

  • CO and HC emissions from SI and Diesel Engines
  • Lube oil review for SI and Diesel Emissions
  • The effects of vehicle technology on CO2 emissions across a range of different drive cycles
  • Cold start and implication for Real World Emissions in urban driving
  • Introduction to emission control by catalysts
  • Three-way catalyst (TWC) substrates
  • Three-way catalysts (TWCs)

Day 4: Particulate and NOx after treatment with minimum CO2 penalty

  • Diesel oxidation catalysts (DOCs)
  • Diesel Particulate Filters (DPFs)
  • The regeneration of particulate filter systems
  • Gasoline Particulate Filters (GPFs)
  • NOx adsorber catalysts
  • Selective catalytic reduction (SCR)
  • SNCR: SCR - urea mixing and control: influence on PM

Day 5: Diesel fuel injection and engine design trends for low NOx, PM and CO2 emissions

  • Unit injection and common rail fuel injection systems
  • Modern turbocharger systems
  • Transient gas and particulate emissions measurements from diesel passenger cars
  • Emissions Control Strategy on Large Heavy Duty Engines
  • Technology of HD Euro VI truck engines and future trends towards improved fuel economy



Who should attend?

The course is relevant to vehicle manufacturers, engine consultancies and emissions control R&D with an interest in RDE and engine and emissions control technology for Euro 6 and beyond as well as for technology for future CO2 emissions reduction. The course is also relevant to those who need to understand real world traffic emissions from an air quality viewpoint and to those involved in emissions regulation formulation and enforcement.

"Presents the latest state of the art technology and research on the relevant topic. Very useful and relevant from the current automotive industry concerns" JCB Power Systems

"Good to learn about theory and same theoretical trends" Nissan Technical Centre

"A very good course with great speakers" Neste Oil

This course is in association with the Institution of Diesel and Gas Turbine Engineers, which is devoted to the advancement of diesel and gas engines, gas turbines, and related products and technology.

The Energy Institute has approved Leeds University – Faculty of Engineering – as an Approved Training Provider.

Full five days: £1800

Any one day: £450

Fees include:

  • cost of tuition
  • course materials
  • lunches
  • light refreshments
  • course dinner.

Weetwood Hall Conference Centre and Hotel
Otley Road
LS16 5PS


The course will take place at the Weetwood Hall Hotel and Conference Centre, which is situated to the north of Leeds at the junction of the A660 Leeds - Skipton road and the A6120 Outer Ring Road.

Bed and breakfast accommodation is available at the course venue, Weetwood Hall Hotel and Conference Centre.

We have negotiated the following special rates per night for our delegates:

Friday – Sunday evening, bed and breakfast £83

Monday – Thursday evening, bed and breakfast £87

To take advantage of these special rates please book by contacting the hotel direct on 0113 230 6000 (Stevie Standerline), E: Please quote "University of Leeds CPD Unit" and the course name when contacting Weetwood Hall to book accommodation.

Please note that accommodation bookings must be made two weeks before the course commences at the latest to qualify for the special rates and to guarantee room availability.  Any accommodation requests after this date will be subject to availability and rates.​​  A list of alternative hotels is available on request.  Delegates are responsible for their own evening meals except on Wednesday 23 May 2018 when the course dinner is included.


+ 44 (0)113 343 8104

CPD Conference and Events Unit
Faculty of Engineering,
University of Leeds,