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Fuel economy is a top concern these days as automakers, suppliers and consumers alike strive to stretch every drop of petroleum as far as possible. Cylinder deactivation is a key way of bolstering the large-print numbers on a vehicle’s window sticker.
General Motors unveiled its 1.0-liter three-cylinder engine bound initially for the Opal Adam city car ahead of its Frankfurt Motor Show debut.
General Motors announced today that it will work with French automaker PSA Peugeot-Citroen to develop a new generation of small engines.
There are smaller engines on the horizon for BMW‘s 3-Series cars, though a specific date isn’t set yet.
According to an article published by What Car?, BMW said it has exhausted engine technology within the currently offered sizes and that the future is to move towards smaller, more powerful technology.
BMW already stepped in this direction by returning the 2012 3-Series to a 2.0-liter turbocharged four, but this represents the most drastic step to date: a three-cylinder engine. While the powerplants motivating BMW cars are getting smaller, the turbocharging systems the company uses are getting larger — or at least more complex.
The company’s engineers are already planning to implement a tri-turbo system in their M cars by using a single, smaller unit that spools up on exhaust much faster to deliver power almost instantly. Then two larger units take hold and create the sort of forced induction necessary for big power from a small motor.
The three-cylinder engine that BMW is working on for the 3-Series use is still about a couple years off, according to the company and won’t be the same as the unit used in the upcoming i8 hybrid, which will be available in 2013.
Instead, the company is focusing on making an engine that will be able to power cars as large as the 3-Series without help from electric motors, which will remain mostly paired with the six-cylinder engines found in current Bimmer hybrids.
While unconfirmed by company executives, it’s believed that the next-generation MINI models will also make use of 3-cylinder powerplants.
[Source: What Car?]
General Motors unveiled their new family of small displacement engines, a group of three and four cylinder engines ranging from 1.0L to 1.5L in displacement. The engines were designed in concert largely with GM’s Chinese subsidiaries.
GM didn’t divulge which vehicles will get the new engines, but did say that North America won’t be an initial market for the three-cylinder engines. GM was also tight-lipped about the specifics of the engines, only stating ”they will feature lightweight design and advanced technologies such as direct injection, turbocharging and alternative fuel compatibility” as well as “…[being] designed to reduce noise, vibration and harshness.”
There was a time, some 35-odd years ago, when the only engines found under the hood of a Volvo were four-cylinder units. Some were naturally aspirated, and some were boosted via a turbo-charger.
However, due to the demands and pressures from customers and share holders, Volvo started producing five-cylinder, six-cylinder engines. They even got Yamaha to design and build them a V8.
But that is all about to change for its future. According to industry sources, Volvo will not be employing any engine larger than a four-cylinder by 2020. Volvo is looking to develop a line of three-cylinder and four-cylinder motors. To get extra power, they will be turbo-charged, and diesels are also on the menu card.
This new engine line is dubbed VEA for Volvo Environmental Architecture. The idea is to reduce green-house emissions via smaller, lighter engines.
These new engines will start appearing by 2013 in a Volvo model near you.
[Source: Automotive News]
Volvo is currently working on developing several green technologies including an electric C30, a flywheel hybrid system and a diesel-electric plug-in hybrid system. This week, Volvo announced that it’s working on a more ambitious project -three unique range-extended electric drive setups. Volvo is working with the Swedish Energy Agency and the European Union to develop this technology.
All three technical concepts utilize similar hardware- a three-cylinder combustion engine and a 111-hp electric motor but they differ in how the engine assists the electric motor.
Technical Concept I uses a modified Volvo C30 and the system consists of a 60-hp three-cylinder engine, the 111-hp electric motor and a 40-kW generator. The rear mounted engine turns the 40-kW generator that charges the car’s battery pack.
Technical Concept II also uses a modified C30 and utilizes a parallel-connected range extender. The rear mounted engine also turns the 40-kW generator. The engine and the electric motor operate in tandem. The engine powers the rear wheels and the 111-hp electric motor powers the front wheels.
Technical Concept III is installed in a European market V60 wagon and also uses a parallel connected system. Technical Concept III uses an electric motor and a turbocharged three-cylinder engine, with both units located in the engine bay. Both power-plants drive the front wheels through a two-stage automatic transmission.
[Source: Car and Driver]