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Mercedes-Benz unveils its revamped G-Class

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The all-new G-Class makes its public debut at the Detroit auto show in G550 form. Completely redeveloped and fitted with a 4.0-liter V8 biturbo gasoline engine offering 427ps and 450 lb-ft of torque at 2,000rpm to 4,750rpm, despite near-identical looks to its predecessor plenty has changed for the Mercedes-Benz SUV.


Ford’s F150 pickup gets its first diesel motor

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Developed by the powertrain team behind the 6.7-liter Power Stroke engine for super duty trucks, the all-new 3.0-liter V6 Power Stroke unit promises 250ps, 440 lb-ft of torque, and an anticipated 5175kg of towing capacity.


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In light of Fisker's solid-state battery breakthrough and claims of a one minute charge time, will this electric vehicle technology development kick-start mass BEV uptake? 

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Renault chooses Sevcon for e-motor controllers

Renault has selected Sevcon to supply the electric motor controllers for its groundbreaking Twizy ZE electric vehicle.

Based in North East England, Sevcon is one of Europe's leading suppliers of EV controllers and its 48-volt Gen4 AC unit has been specified by the French OEM.

The zero emission Twizy will be available in two models: the standard model is powered by a 13kW motor, while a smaller engine version comes with a 4kW motor. Both models incorporate a 7kWh lithium-ion battery that’s located underneath the front seat and will be leased by the vehicle owner.

A Sevcon Gen4 size 4 motor controller is utilized in the standard vehicle and a Gen 4 size 2 unit is used in the smaller engine model. In both cases the Sevcon Gen4 microprocessor based controllers regulate the power delivery from the battery to the motor to control the speed of the vehicle along with other engine and vehicle functions.

The full range of Gen4 AC controllers has operating voltages from 24 to 400V and a power range from 2 to 100kW. Secvon says that the advanced units incorporate the latest electronic motor control technology and enclosure assembly to provide the smallest control modules in the industry relative to power delivery. 

The use of integrated logic circuits and advanced flux vector control improves traction control efficiency and motor responsiveness – channeling drive power and energy from the battery smoothly and effectively, as well as integrating other functions such as throttle, direction and other key switches.

Twizy boasts a range of 100km, a regulated top speed of 80km/h and the battery fully charges in three and a half hours. The vehicle can carry two people, with the passenger being seated behind the driver.

27 March 2012


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