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Sunday, October 2, 2011

Toyota Auris HSD, 2011, European Toyota Hybrid Car

 
 
Toyota Auris HSD, 2011

The Toyota Auris HSD (Hybrid Synergy Drive) introduces full hybrid technology to a core model at the heart of Toyota's model line-up. It marks the first step in the deployment of HSD technology across the company's entire European model range by the early 2020s.
Built in Britain at Toyota Motor Manufacturing UK's Burnaston factory, it targets an important shift in customer perceptions of full hybrid drive technology.

Exterior design
The Toyota Auris HSD adopts the new exterior styling introduced across the Auris 2010 model range, including a completely redesigned front-end. It also displays a number of model-specific features which help improve the car's aerodynamic efficiency and reference the presence of Toyota's Hybrid Synergy Drive powertrain.
The opening in the upper front grille has been optimised to promote a smooth flow of air over the upper half of the body, and the lower grille has been made larger to reduce airflow resistance and improve engine cooling efficiency.

With a revised foglamp configuration, the flat, vertical surface of the corners of the front bumper corrects the airflow as it passes over the front wheels, helping minimise turbulence in the wheelarches.
Further improvement in aerodynamic efficiency is achieved by a ride height reduced by 5mm; purpose-designed alloy wheels with integrated aerodynamic caps; low rolling resistance tyres; and a large, roof-mounted rear spoiler. Working together to smooth and control the flow of air over the car, these HSD-specific design modifications reduce the coefficient of drag from Cd0.290 to 0.283, contributing to reductions in fuel consumption and CO2 emissions.

The Interior design
The interior features a number of modifications, including a revised instrument binnacle in which the tachometer has been replaced by an Eco Drive Assist Monitor. The centre-dial information panel includes additional HSD-specific information such as Energy Flow and Eco Drive Result monitors.
A hybrid blue smart start button has been added to the side of the instrument cluster and the centre console incorporates switches for the Parking Control and EV, ECO and Power drive modes, and a shift-by-wire gear lever.

The illumination is changed to display greenish-white numbers on a hybrid blue background on the meter panel, audio and heating controls, and the Smart Start, Drive Mode and Parking Control switches.
A choice of upholsteries specific to the model will also be available: a blue-flecked fabric or Alcantara panels with leather surrounds.

Hybrid Synergy Drive
Toyota Auris HSD is a full hybrid capable of operating in petrol and electric modes alone, or a combination of both. Its Hybrid Synergy Drive system delivers the energy-saving qualities of a series hybrid, combined with the performance benefits of a parallel hybrid.

The technology delivers impressive, seamless acceleration and remarkably quiet running, with class-leading fuel consumption and CO2 emissions from 74.3mpg and 89g/km.
Toyota's latest generation Hybrid Synergy Driver uses a 1.8-litre VVT-i petrol engine, a powerful electro motor, generator, high performance battery and a power control unit. A power split device with a planetary gear system combines and reallocated power from the engine, electric motor and generator according to the car's operational requirements.

The lightweight and compact four-cylinder, 1,798cc Atkinson Cycle VVT-i engine develops 97bhp at 5,200rpm and 142Nm of torque at 4,000rpm. The high performance permanent magnet synchronous 60kW electric motor generates a maximum 207Nm between zero and 13,000rpm.
Powered by the hybrid battery, the electric motor works in tandem with the petrol engine to boost acceleration in normal driving. When the car is operating in EV (electric vehicle) mode, it alone powers the driven wheels.
Toyota Auris HSD eco driving experience
The Toyota Auris HSD has four driving modes, including three that can be selected "on-demand" by the driver to maximise the HSD powertrain's capabilities and provide comprehensive eco driving support for those who want to adopt a more environmentally efficient style of driving.
EV mode allows for ultra-quiet running on electric motor power lone, giving zero fuel consumption and emissions. ECO mode maximises efficiency and fuel economy, and Power mode boosts system performance. In addition, an Eco Drive Monitor helps driver's maximise the HSD system's efficiency.

The driver can monitor the flow of energy around the HSD system in each mode, via the multi-information display in the instrument panel, which helps promote an easy, fuel-efficient driving technique. There is also a clear and simple power consumption gauge that shows how much power is being used or generated at any given time.

The inherent quietness of Hybrid Synergy Drive, Toyota has paid special attention to NVH reduction measures to create a calm and quiet cabin environment at all speeds. Road and engine noise have been rigorously suppressed with extensive use of sound-proofing materials. Full-thickness glazing and a multi-layer acoustic windscreen further reduce noise for quieter performance at cruising speeds.

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