1. Principal layout of the prototype
(USFD, INNAS)

2. The electrical machine
(ABB)

3. The combustion system HCCI combustion Two-stroke Cyl. vol.: 2x1 litre
Diesel fuel
Simulation results:
Poweroptimal: 23 kW
Efficiencyind: ~51%
Efficiencyeff: ~46%
(IFP, INNAS, CTH)

4. Cylinder

5. Cylinder head, complete

6. Photograph of the prototype
(INNAS)

7. Prototype in the test cell at Chalmers

8. Control layout Electromagnetic force, Fel Fuel input, Qcomb
Control Inputs
Electromagnetic force, Fel
Fuel input, Qcomb
Controlled Outputs:
Output power, P
Ignition time, tign
(VTEC, USFD)

9. Control strategy
(USFD, VTEC)

10. Balancing of the free piston engine

11. Main project results
Integral prototype, rated power 15-50 kW to confirm efficiency, emissions, control procedures, etc.
Experimental verification of performance.
Results from modelling the onboard electricity generation system, especially controllability, performance at part load and transients.
Results from scaling and packaging studies.