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The Dual Drive system uses a highly efficient epicyclic gear train to transmit its power, combined with the two motors / generators. Generating electric power in one place and using it to drive a nearby motor is relatively inefficient. Dual Drive's design means that at on average only around 10% of the total power is transferred via the electrical path. This results in much higher overall efficiencies.

To view an animation of the DualDrive transmission system click here

Because DualDrive is a four branch differential both variators are independent of input or output meaning there are two ratios at which the electrical path transmits no power. The system is sized so that these ratios occur at common operating speeds, thereby maximizing potential fuel savings.

Control of the DualDrive system is carried out using standard, well-established power electronics. Engineering the performance of the system to match specific vehicle characteristics, or modifying to suit customer tastes, will be readily customized.

For reasons of confidentiality further details are restricted to potential licencees. We are willing to disclose such details to Tier1 suplliers or OEM's on the basis of non-disclosure agreements.