|The Auris HSD Full Hybrid concept. Click to enlarge.|
Toyota has provided more detail on the new Auris HSD (Hybrid Synergy Drive) concept, to be unveiled next week at the Frankfurt motor show. The concept, which previews the production model of the hybrid to be built in the UK beginning in the second half of 2010, uses the same powertrain applied in the current-generation Prius. (Earlier post.)
The Auris hybrid will be Toyota’s first full hybrid mainstream model in Europe. A five-door hatchback is the best selling type of car in Europe, Toyota notes, and so consequently the installation of HSD in Auris is the logical first step in deploying full hybrid technology across Toyota’s entire European model line-up. Sales are scheduled to start during second half of 2010.
Equipped with a 1.8-liter, 98 hp (73 kW) engine, 60 kW traction motor, and NiMH battery pack, the car will accelerate from 0 to 62 mph in around 10 seconds, while returning what Toyota calls class-leading combined cycle fuel economy and sub-100g/km CO2 emissions. It offers four driving modes, three of which can be selected on-demand by the driver:
- ECO mode maximizes hybrid system efficiency and fuel economy;
- Power mode boosts performance; and
- EV mode allows for electric motor power only for up to 1.25 miles (2 km) at speeds up to 31 mph (50 km/h).
|The Auris hybrid concept uses solar panels on the roof for ventilation support and dashboard to recharge mobile consumer electronics devices. Click to enlarge.|
Toyota paid particular attention to further NVH reduction measures. Road and engine noise have been suppressed by comprehensive use of soundproofing materials, and full thickness glazing and an acoustic windscreen reduce wind noise at cruising speeds.
Toyota made changes to Auris’ styling to improve aerodynamic efficiency and added blue hybrid badging to identify the car as a member of Toyota’s full hybrid fleet.
The front end is designed to optimize airflow and so help maximize fuel efficiency. The front and rear bumper corners have flat surfaces, a feature that not only accentuates the car’s wide and solid stance, but also smoothes the flow of air over the vehicle’s flanks, minimizing turbulence and drag.
The ride height is lower by 20 mm compared to the conventional Auris, and underbody panels and a rear diffuser have been fitted to smooth and control airflow beneath the car. The bespoke 18-inch alloy wheels are designed to cut air turbulence in the wheel arches and are shod with low rolling resistance tires. A larger, more efficient rear spoiler is also fitted. These aerodynamic elements target a drag coefficient of 0.28.
Using technology that was first brought to the market in the latest generation Prius, the Auris HSD Full Hybrid Concept marks a further development of solar powered ventilation, with solar panels covering the entire roof.
Similar technology is used inside the cabin, with solar panels on top of the dashboard that generate sufficient energy to recharge mobile phones or portable music plays mounted in purpose-designed charging trays. In the future, Toyota aims to advance this technology to provide solar powered recharging of the hybrid battery.
Further energy-saving measures include the use of LED technology for the front and rear lights.