We all know that that stop-start systems can help reduce carbon dioxide emissions – but there have been concerns about their reactions when a driver changes his/her mind about stopping.
Now however, Controlled Power Technologies (CPT) is ready to demonstrate a next-generation system that solves this issue.
The CPT SpeedStart technology.
The system will debut at Millbrook Proving Ground this week where CPT will demonstrate two vehicles – a petrol powered Audi A4 and a diesel Volvo – with the so-called SpeedStart technology. It claims that the SpeedStart system can slash emissions by seven-10 per cent and can deliver up to a five per cent reduction in CO2 emissions over the New European Drive Cycle when integrated into a modern powertrain.
However, perhaps its biggest breakthrough is that it addresses the “driver change of mind” scenario. At the moment, anyone with a conventional starter motor can reach a point of no return when the engine revs drop below a certain speed and with a stop-start system in place the engine cannot be stopped from shutting down before it is restarted. However, the SpeedStart system includes intelligent torque and current control with enhanced stop-start capabilities meaning it can restart an engine imperceptibly and in less than half the time of a conventional starter motor.
Under test conditions of the New European Drive Cycle, SpeedStart’s stop-start capability produced a three-five per cent reduction in CO2 emissions and this over just 12 stops.
