The first full hybrid vehicle to go on sale in the European B-segment and the flagship of the Yaris model range, the new Yaris Hybrid makes its world debut at the 2012 Geneva Motor Show. Combining the ingenious packaging and urban agility of the Yaris model range with the unique driving experience and efficiency of Toyota’s Hybrid Synergy Drive® (HSD), the new Yaris Hybrid is a major step in the company’s full hybrid European roll-out strategy.
The Yaris is Toyota’s best-selling core model, with the largest ‘Unit in
Operation’ fleet on European roads.
Following the launch of the Auris Hybrid,
the Yaris Hybrid is Toyota’s second core model to feature HSD technology, and
brings this remarkable powertrain to the biggest volume segment in Europe.
The new Yaris Hybrid is designed for demanding urban drivers who expect
a new driving and ownership experience from their car. Combining low fuel
consumption, emissions and cost of ownership with uniquely relaxed and quiet
driving, its HSD system proves that driving pleasure need not be compromised
by environmental responsibility and low running costs. Aspirational Design with Segment-Best Packaging
The Yaris Hybrid inherits all the clever DNA of the standard model, offering
B- segment customers an ingenious combination of compact packaging with
a spacious, practical interior, while introducing a new, more advanced and
sophisticated style to the exterior design.
Its 2,510 mm wheelbase length unchanged, the new Yaris Hybrid is just 20 mm
longer than the standard Yaris, at 3,905 mm overall. The front overhang has
been increased to accommodate the new, downsized, full hybrid powertrain,
yet the vehicle’s class-leading turning circle of only 4.7 metres has been
The Yaris Hybrid features an exclusive, aerodynamically efficient exterior
combines a new, more aggressive, Under Priority frontal design
language -the distinctive new face of the next generation Toyota family- with
Keen Look detailing such as front and matching rear LED lighting.
Aerodynamics are key to fuel efficiency, and the new Yaris Hybrid benefits
from improvements to air flow both over the restyled front of the body and,
Yaris Hybrid, A Pioneering Offer For The B-Segment6 7
through the adoption of underbody covers and wheel spats, beneath it
. As a
result, Toyota’s new full hybrid boasts a class-leading drag coefficient of just
On board, the Yaris Hybrid interior features an exclusive, hybrid blue finish to
the dashboard soft-touch pads and seat fabric trim, blue illumination to the
hybrid combimeter and a Toyota Touch system which incorporates a Hybrid
Energy Monitor, and a hybrid-specific CVT gear knob.
The new Yaris Hybrid represents a significant engineering breakthrough in the
packaging of the full hybrid powertrain. Every key HSD component has been
reduced in size, and both the fuel tank and battery are installed under the rear
seat. As a result, the Yaris Hybrid maintains identical occupant space and the
same 286 litre luggage capacity as that of the standard model. New, Downsized Full Hybrid Powertrain
The Yaris Hybrid introduces the first downsizing of Toyota’s HSD technology.
The new powertrain has been optimised for installation within the vehicle’s
compact, extremely efficient packaging design, without detriment to either
system quality and performance, or passenger accommodation and loadspace.
The downsized full hybrid system combines a new, 1.5 litre petrol engine with
a lighter, more compact electric motor, transaxle, inverter and battery pack. Total system weight is 42 kg less than that of the Auris Hybrid, making the new
powertrain 20% lighter.
The 1.5 litre Atkinson Cycle petrol engine is 16.5 kg lighter and 10% shorter
than the 1.8 litre unit of existing Toyota HSD powertrains.
When used in
combination with a cooled Exhaust Gas Recirculation (EGR) system, an
Atkinson cycle engine offers significant gains in fuel efficiency and the
reduction of emissions.
In the Atkinson cycle, compression and expansion are asymmetrical, and the
valves close late, delaying compression. This creates a high expansion ratio
for less compression, converting combustion energy to engine power more
effectively. Though more fuel efficient, an Atkinson cycle engine is marginally
less powerful than the more common, Otto cycle unit. However, it
by an electric motor in Toyota’s Hybrid Synergy Drive®, boosting total system
power under acceleration.
The use of a smaller E-CVT electric continuously variable transmission and
a more compact electric motor effects a 6% reduction in the length of the
Yaris Hybrid’s transaxle, and an 11 kg weight saving over that of the Auris
The electric motor has been made smaller through the optimisation of the
magnet material, and the winding of the coils with flat, rather than round,
wire. And, due to a reduction in system current and voltage, the system’s
Power Control Unit (PCU) has also been made smaller and lighter through the
development of a more compact inverter and switching unit.
The new, downsized full hybrid powertrain also features a smaller, nickel-metal
hydride battery with a more efficient management system. The number of
cells has been reduced from the 168 of the current Auris Hybrid to only 120,
effecting a decrease in volume of 20% and a weight saving of 11 kg.
possible to install the new battery entirely under the rear passenger
seats, with no intrusion into the cargo loadspace.
Combining the power of a 55kW petrol engine and the electric motor, the
Yaris Hybrid’s highly efficient, 74 kW/100 DIN hp powertrain will offer the
best balance of performance and fuel consumption/CO2 emissions in the
B-segment, whilst allowing customers frequent driving in modes that emit
zero NOx, PM
or CO2 emissions. Real world tests
in an urban environement with Toyota’s Hybrid Synergy Drive powertrain reveal that up to 60% of commuting journey is undertaken with the petrol engine off
, resulting in zero emissions driving.
Combining a low centre of gravity with the optimum weight distribution provided by the battery pack’s central layout, the Yaris Hybrid offers customers responsive performance and extremely well balanced driveability.
A thorough review of Noise, Vibration and Harshness (NVH) measures has also
increased the quietness of the HSD powertrain. Most notably, an excessive
increase in engine rpm has been suppressed under acceleration, offering a
more linear relationship between vehicle and engine speeds.
The new Yaris Hybrid is not a niche model. It
is designed to appeal to a broad
range of customers from different segments, such as C-segment downsizers
wishing to combine roominess with fuel efficiency, traditional B-segment
buyers looking to combine style with low ownership costs, eco-minded
customers seeking the latest, class-leading green technology, and even
B-premium intenders in search of an alternative proposition.
Every Toyota full hybrid offers customers the lowest possible cost of
ownership. Excellent fuel efficiency and low CO2 emissions bring tax incentives
in some countries, inner city congestion charge exemption and exceptionally
low running costs.
Moreover, Hybrid Synergy Drive® has been designed for low maintenance
and outstanding durability. The full hybrid powertrain does not need a
conventional starter motor or alternator. The engine uses a maintenance-free
timing chain and has no drive belts, improving reliability and bringing further
Based on the feedback from Toyota Hybrid vehicles on the roads, the efficiency
of the Electronically Controlled Braking (ECB) regeneration system means that
brake pads have a life expectancy of more than 100,000 km.
The new Yaris Hybrid will be produced at the Valenciennes plant of Toyota
Motor Manufacturing France. Representing 20% of total Yaris model range
volume sales on a full year basis, it
will go on sale throughout Europe from May