• Infiniti M35h world’s first hybrid to get standard audible pedestrian warning system
• New Approaching Vehicle Sound for Pedestrians (VSP) technology the result of extensive research program
• Unique variable pitch, variable volume tone chosen for being most effective – without adding unnecessary noise pollution
• Another safety-first feature in all-new M models’ innovative safety catalogue
• M35h joins already-available V6 petrol and V6 diesel in high performance M range from next spring
Rolle, Switzerland (November 18, 2010) – The Infiniti M35h will become the world’s first hybrid to feature an audible pedestrian warning system as standard when it goes on sale in six months’ time. The ground-breaking high performance hybrid model, which can travel further and faster in silent electric-only mode than other hybrids, utilises a range of distinctive sounds to help ensure the safety of other road users.
The new, Approaching Vehicle Sound for Pedestrians (VSP) system – is computer controlled and links an in-car sound synthesizer with a speaker built in to the front bumper. It automatically works from start-up to 30 km/h, cutting back in at 25 km/h as the vehicle slows.
Instead of just a single tone, a range of high-low sounds at different volume levels was chosen after an extensive research program to find the most effective, but least intrusive, noise. The team developing the system in Infiniti’s parent group worked with cognitive and acoustic psychologists studying areas from pedestrian behavioural patterns to noise pollution.
The result is a sine-wave sound that extends from 2.5kHz at the high end to a low of 600Hz. It is a range readily audible to all age groups while avoiding a sound range (around 1,000Hz) that would add unnecessary noise to the environment.
The noise sweeps from high to low frequency depending on vehicle speed and whether the M35h is accelerating or decelerating. It is loudest at start-up to give a clear indication the vehicle is beginning to move off, while an intermittent tone is used when reversing – both sounds calculated to ensure the M35h cannot surprise pedestrians and the visually impaired as it approaches.
Although the M35h can travel at speeds of around 80 km/h on engine noise-free electric power alone, road noise past 30 km/h means the M35h generates sufficient sound for the Approaching Vehicle Sound for Pedestrians to remain off. An extensive testing program during the hybrid’s development showed that, in mixed driving conditions, the M35h was able to drive in electric-only mode for as much as 50% of the time.
Unlike other manufacturers and in keeping with Infiniti’s generous standard features policy across all its models, Approaching Vehicle Sound for Pedestrians will come ready installed on every M35h in Europe when sales commence from spring 2011 (depending on country). Approaching Vehicle Sound for Pedestrians joins a host of innovative safety systems available on the M35h including the Dynamic Safety Shield, standard on Premium versions.
Third of a trio of high performance V6 sedans to challenge Europe’s established executive car hierarchy, the M35h is the first model from Japan’s newest luxury automotive manufacturer to feature Infiniti Direct Response Hybrid technology. Combining a potent 306 PS (225 kW) 3.5-litre petrol V6 with a 68 PS (50 kW) electric motor, the M35h delivers highly responsive sports car performance alongside an ability to glide on zero-emissions electric propulsion – more often, for longer periods and at higher speeds than in existing hybrids.
The surprising result for the driver of the M35h is 0-100 km/h in under 5.9 seconds and combined fuel consumption of 7.3 l/100 km (both figures subject to final homologation), making it Infiniti’s fastest as well as cleanest and greenest model.
With standardisation of the Approaching Vehicle Sound for Pedestrians , there will however be no surprises in store for pedestrians.
Ends
Notes to editors
• Full specifications and pricing of the entire Infiniti M range can be downloaded now from www.infinitipress.eu
• The Infiniti M might be a new name in Europe but it is well known elsewhere in the world. This is the third-generation Infiniti M, an all-new model which had its European debut in Geneva in March 2010. It is the first Infiniti M to be sold in all of Infiniti’s 34 world markets.
• Infiniti comes from Japan. Its line-up of performance sedans, coupés, convertibles, SUVs and crossovers is now being launched across the globe through a dedicated network of Infiniti Centres or dealerships which share a commitment to individualised and exceptional customer service. For more information, see www.infiniti.com
Press information, Photographs and videos are available from www.infinitipress.eu no password is required.
For further information, please contact:
Wayne Bruce
Communications Director
M: +44 7768 802176
E: wayne.bruce@infiniti.eu