"Rolling resistance" refers to the force that needs to be overcome when an object rolls or moves on a surface. It is the friction or resistance experienced by the object due to the interaction between the surface and the rolling object.
Full definition
Climate change is a key driver of the development of
low rolling resistance tires because of the way they reduce energy consumption.
The chief culprit is the suspension, which feels too firm yet offers no real benefits
in roll resistance or body control.
Factor in the
increased rolling resistance of the wider tires and you have car that not only weighs more, but also has to work harder to get going.
In an effort to go green, many tire manufacturers are introducing new products to the market that provide
less rolling resistance, which helps boost fuel economy.
Those additions could negatively affect aerodynamics and
rolling resistance which kinda goes against the purpose of this car.
And when it is on the move, tires optimized for low
roll resistance cut fuel consumption significantly without incurring any disadvantages in the performance area.
The problem is that
rolling resistance really doesn't have a huge impact on your fuel economy to begin with, so lowering that resistance doesn't have a big effect.
The tires were specially developed for the requirements of an electric supercar, and they combine sporty driving properties with
efficient rolling resistance values.
If you live in a snowy area, I would highly recommend swapping the low -
rolling resistance tires for a set of all - seasons or winter tires.
These new tires have 40 percent
less rolling resistance than conventional tires and a 5 - percent reduction in weight.
The body design is also surprisingly aerodynamic for a large car, and ultra
low rolling resistance tyres are fitted as standard to many models.
Fuel consumption falls to 11.3 L / 100 km when fitted with the 19 inch, all - season tyres with
optimised rolling resistance developed for the Panamera by Michelin.
This is presumably because apart from the marginally increased
rolling resistance from the wider tyres, you're only reducing the range compared to the regular i3 if you're using all of the more powerful motor's potential.
The ECO Pack also features an underbody cover and lower suspension, aiding air flow beneath the vehicle, as well as low
rolling resistance Michelin tyres.
The vehicle profile is further enhanced by a choice of six - spoke 17» alloys with new, low RRC (
Rolling Resistance Coefficient) tyres, high gloss painted 18» alloys, or a new, 12 - spoke, machined finish 19» alloy wheel design.
Also, some of the energy used to overcome inertia and accelerate the vehicle — normally lost when the vehicle is slowed, to aerodynamic forces and
rolling resistance as well to the mechanical brakes (as heat)-- may be recaptured as electrical energy if regenerative braking is available (see the discussion of hybrid electric drive trains).
Among other features, Brake Energy Regeneration, on - demand control of the car's ancillary units such as the electrical coolant pump, the electrical steering assistance pump, the map - controlled oil pump and the detachable a / c compressor, as well as consistent lightweight technology, optimised aerodynamics including active management and control of the air flaps and, finally, tyres with
minimum roll resistance ensure optimum fuel economy and emission management.
The Prius is heavily influenced by marketing decisions to add other high - mileage features to the car such as
ultra-low rolling resistance tires, (ask a Prius owner how may miles they get on tires) an infinitely variable transmission, and extremely clean aerodynamics to make their «synergy drive» look better than it really is.
Modifications to the transmission ratio, bodywork and suspension as well as the use of tires with
optimized roll resistance reduce fuel consumption even further.
Some of the performance upgrades include: a Bisimoto pulse - chamber exhaust system, Racepak OBD - monitoring electronics with interactive OBD cluster, low -
rolling resistance high - silica tires, Buddy Club aluminum brake calipers, NGK spark plugs and 19 - inch carbon fiber wheels..
The rubber compound, tread pattern and the carcass architecture have been designed for the
least rolling resistance possible in order to reduce fuel consumption.
The unit uses low viscosity multigrade oil to reduce
bearing rolling resistance and oil agitation resistance when the oil temperature is low, and a friction adjuster suppresses the stick - slip phenomenon when sliding the car and to improve quietness.
(According to Chevrolet, the extra weight of additional features and different tires with
greater rolling resistance give the Premier a 30/40/34 mpg estimate.)
Packaged in an aerodynamic body with a chassis that features
minimized rolling resistance, the big engine barely needs to rev above an idle to motor the Corvette down the road.
Even on the regular 2012 Civic, Honda is using tires that are five pounds lighter and are 10 percent better in
rolling resistance compared to the 2011 model.
Stylish 17 ″ alloys are standard and wrapped in «eco» tires that have lower
rolling resistance over standard tires.
Air springs and adaptive dampers are now standard, and there's an optional electromechanical anti-roll bar adjustment that changes the level of
roll resistance by decoupling the anti-roll bars.
Did some research, removed incorrect information, i still think its an unfair comparison with
rolling resistance changing as well in terms of total contact patch (your article has a 40 mm difference between the largest and smallest set of tyres).
The Michelin 215 / 55R -17 low
rolling resistance all - season tires do an adequate job of holding the road, and bumps and pavement irregularities are damped well by the four - wheel independent suspension which is further aided by the rigid body structure.
Our certified auto service advisors and technicians are here to help drivers pick out a set of new tires that meet their needs, whether those lean to a longer tread life, more comfort, or greater fuel efficiency
through rolling resistance.
They are also making improvements in the wheel bearings and residual brake drag that further reduce
overall rolling resistance of the car.»
A «BlueDrive» option includes Intelligent Stop & Go (ISG) start - stop system and 15
inch rolling resistance tyres, resulting in a reduced CO2 of 99g / km for the 110 hp diesel (this version is only available in UK actually).
Phrases with «rolling resistance»