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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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Denso develops new low-cost fuel injection system

Japanese automotive supplier Denso has developed a new electronic fuel injection system for small motorcycles. The Denso Intelligent Economical Technology-Fuel Injection (DIET-FI) is the world’s first fuel injection system that doesn’t use a throttle position sensor or engine temperature sensor. Instead, it uses newly developed control technologies that ensure the same fuel economy and environmental performance as conventional fuel injection systems, thus cutting costs.

Ordinarily, fuel injection systems are only used in motorcycles, but in recent years there has been a growing need to apply these systems to smaller motorized bikes up to 150cc, popular in emerging markets such as China.
Denso identified the need for a low-cost fuel injection system that delivers similar fuel economy and environmental performance as conventional systems, but with fewer components.

The DIET-FI has five fewer components than conventional systems. Denso developed control technologies that were able to eliminate the throttle position sensor, intake air temperature sensor, engine temperature sensor and ISC idle speed control step motor. Specific compensation technologies include a temperature estimation control that integrates a thermistor into an electronic control unit, and a fuel metering control to determine acceleration/deceleration using an intake air pipe pressure sensor.

4 June 2014


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