Whilst chatting to Uitenhage Goodyear Managing Director, Darren Hayes-Powell he mentioned that Goodyear Tyres are available specifically for the the new Jaguar I-Pace and that a tyre specific to Electric Vehicles was necessary as; “…they are heavier with a lower centre of gravity than normally aspirated vehicles!”
Hayes-Powell joined Goodyear in 2008 and in November 2017 was appointed out of his role as Vice President Finance Global Operations to the position of Managing Director of Goodyear South Africa.
Couple the heavier weight of an EV with the instant torque of electric engines then the wear is expected to be quite hard on tyres.
In 2018 Goodyear launched a solution with a new tyre aimed at the electric vehicle market. The need was identified as Goodyear says that “traditional tyres can wear out up to 30% faster on electric vehicles.”
At the 2018 Geneva International Motor Show Goodyear unveiled the “EfficientGrip Performance with Electric Drive Technology”, which they claimed will reduce the wear from high torque.
To test the weight theory we looked at two sets of similar vehicles – the Jaguar F-Pace and I-Pace along with the Hyundai Kona ICE and EV models.
- The Hyundai 1.6 Turbo Normally aspirated vehicle has a power rating of 130 kW @ 5500 rpm which is the closest rating to the Hyundai Kona EV rated at 150 kW. The 1.6T Hyundai’s curb weight is 1 506 kg vs the 1 760 kg of the Hyundai Kona EV. – over 250 kg’s more
- The Jaguar F-Pace Weight is 1 775 kg and the I-Pace weighs 2 133 kg’s – 350 odd kilograms more.
So it would appear that EV’s are definitely heavier than their similar Internal Combustion Engined cousins/brothers/sisters which would mean greater tyre wear and the need for stronger sidewalls and more robust tyres.
Goodyear also claim that their EfficientGrip tyres will also help energy consumption and therefore increase range:
- Extended Mileage from Innovative Tread Design: The tread’s thinner sipes (small channels) allow for a larger rubber contact patch on the road surface than traditional radial grooves. With more rubber on the road, the tyre can better cope with high levels of torque while maintaining high performance in wet conditions. The tread design also prevents sound waves from entering its grooves, reducing interior and exterior tyre noise.
- High-Load-Carrying Construction: The tyre cavity shape has been optimized to support the additional vehicle weight from batteries while maintaining an optimal tread footprint for high performance.
- Extended Driving Range: The material properties of the tread compound have been tuned for ultra-low rolling resistance to extend the vehicle range while coping with high levels of torque. In addition, the sidewall has been designed to reduce aerodynamic drag and the profile yields less rotating mass, resulting in reduced energy consumption.
Goodyear says that they are also working on making the tyres quieter since road noise often appears greater in electric vehicles due to the lack of engine noise.
You can help the quiet revolution along by installing an EV Charging station outside your Guest House, Hotel, Coffee Shop, Restaurant, Shopping Centre or in your forecourt. Contact Straton Electrical for EV Charging Station options.
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