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EVPlus - April 2015 News

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Holden pulls the plug on its Volt electric car

Added by admin 28/04/15

HOLDEN has pulled the plug on its Volt electric car, even though it was once described as its “car of the future”.
The struggling car maker, whose sales are down despite a record start to the year, has confirmed it will not import the new generation Volt that is about to go on sale in North America.
The announcement has dealt a blow to the electric car movement in Australia and casts a doubt over the future of other battery-powered vehicles.
“In light of General Motors’ decision not to proceed with a right-hand-drive program for the next generation Volt, Holden can confirm that it will not be bringing this electric vehicle to Australia,” said Holden spokeswoman Kate Lonsdale.
“Current generation Volt production has now ceased however Holden is committed to supporting Volt customers (with parts and service).”
Holden has sold just seven of its Volt electric cars so far this year and fewer than 250 have been delivered to Australian customers since the model went on sale two-and-a-half years ago.
Part of the reason behind the limited appeal of the Holden Volt was the price: $60,000 for a car about the same size as a $20,000 Holden Cruze.
The Volt had one ace up its sleeve that other electric cars lacked; when the battery ran out after between 50km and 80km (depending on driving conditions) a petrol motor could power the car for a further 300km.
However, if Holden’s electric car with a back-up petrol motor can’t be a sales success in Australia, there are grave fears held for the longevity of other battery-only electric cars.
A few years ago the industry boldly predicted electric cars might make up 10 per cent of all new cars sold globally by 2020; so far this year they account for 0.07 per cent of sales in Australia.

                                                   Story and image courtesy news.com.au


Siemens' world-record electric aircraft motor punches above its weight

Added by admin 21/04/15

Researchers at Siemens have created a new prototype electric motor specifically designed for aircraft that weighs in at just 50 kg (110 lb) and is claimed to produce about 260 kW (348 hp) at just 2,500 RPM. With a quoted power five times greater than any comparable powerplant, the new motor promises enough grunt to get aircraft with take-off weights of up to 1,800 kg (2 ton) off the ground.
Researchers say they produced such a light but powerful motor by analyzing all of the components of previous electric aircraft motors and incorporating optimized improvements to these in their new prototype. Added to this, the researchers also utilized a range of computer simulation methods to model the motor prior to construction, before then applying the findings to produce the lightest and strongest set of components possible.
As a result, the new aircraft electric drive system achieves a claimed weight-to-performance ratio of 5 kW per kilogram. This ratio is an exceptional figure – especially if compared to similarly powerful industrial electric motors used in heavy machinery that produce less than 1 kW per kilogram, or even to more efficient electric motors for vehicles that generate around 2 kW per kilogram. The four electric motors in the Solar Impulse 2, by comparison, produce just 7.5 kW (10 hp) each.
The new Siemens electric motor is also direct drive and does not require a transmission, spinning a propeller up to speeds of around 2,500 RPM.

                                                   Story and image courtesy: gizmag


Tesla launch AWD 70 kWh Model S70D

Added by admin 08/04/15

Tesla Motors introduces the All-wheel drive Model S 70D. Uniting exceptional performance and drive experience features, the newest Model S offers great value at a compelling price. Starting at $102,400 RRP plus luxury car tax, on-road costs and stamp duty, Model S 70D includes dual motor all-wheel drive technology, a NEDC-rated 440 km of range, and a 0-100 time of 5.4 seconds.
In addition to dual motor, 70D comes standard with Autopilot Hardware, Navigation, and Supercharging. And, as with every Model S, 70D will run on the new software 6.2 and owners will continue to receive free over-the-air updates that will add additional functionality, enhanced performance, and improved user experience over time.
To make room for the 70D, Tesla is eliminating the 60, which had been its cheapest Model S since the sedan’s 2012 launch. Starting at $76,170 before any government incentives, the 70D will cost $5,000 more than a basic 60, though it includes use of Tesla's proprietary Superchargers, which was previously a $2,000 option.
Model S70D will be able to travel 440 km (275 miles) between charges and deliver 380 kw (514 hp) to all four wheels from two electric motors -- up from 375 km (233 miles) of range and 280 kw (380 hp) for today’s basic rear-drive Model S, called the 60.
Road & Track are quoting a 0-60 mph time of 5.2 for the 70D but taking into consideration the slightly heavier (15 kWh more batteries on-board) standard 85D with 188 hp motors front and rear (total 376 hp) also records 5.2 sec, I think we can expect significantly-sub-5 sec times from the new 514 hp Model S 70D.

                                                   Story and image courtesy: Electric Vehicle News


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