Shanghai GM Ecotec power analysis

In the car's car lineup, Japanese cars have a persistent pursuit of high efficiency. The release of the new Fit 1.5L direct-injection model is precisely the implementation of this idea. The highly efficient combination of the representatives of the 1.4TSI and the DSG in Germany has kept many opponents crazy. Shanghai General Motors has gradually accelerated the introduction of small-displacement high-efficiency engines in recent years. The entire new generation of Ecotec's small-displacement engine assembled by Cruze Cruze is a revolution.

Ecotec engine series debuted, Ecotec is a combination of Economial and Technology. Based on the general Opel design and R&D, the old large-displacement American engine is replaced with a brand new high-efficiency power. , environmental protection and economical R&D concept. This series of engines covers a series of engines for diesel and gasoline. There are now millions of units that are widely used in GM’s dozens of models including Opel, Chevrolet, Buick and others, covering 1.6, 1.8, 2.0, The 2.4L multi-displacement has become the main force of General Motors in Europe and North America, and it has long been one of the four-cylinder engine series with the highest penetration rate in the world.

Since 2000, the Ecotec series has appeared in China and gradually became the main engine series of Shanghai GM. After the financial crisis in 2008, GM began to introduce more new products to stimulate the market. The off-line production of Buick New Regal has injected sports genes into mid-sized vehicles that are originally designed for commercial use. More importantly, the new Ecotec engine, which incorporates intelligent direct injection and turbocharger technology, has settled in China and has become a new start for Shanghai GM's high-efficiency power. .

1. The mid-to-high-class car fully participates in SIDI direct injection. The early 2006 domestic Lacrosse mid-size car designed by Shanghai Pan Asia was used for high-end positioning. A 2.4-liter engine was used. Most of the technologies were from North America and Australia Horton. With 4AT, 5AT was subsequently replaced. With the renewal of technology, existing power and emissions have become a drop in the bucket. The new generation of Regal and the new LaCrosse, the more important is to join the efficient power. A new generation of ECOTEC SIDI2.4L engine has become the main force. It has joined SIDI cylinder direct injection, adopts lightweight aluminum alloy piston, has oil spray to reduce friction, and valve admission technology has better heat conduction, and the compression ratio has reached 11.2:1. With the latest second-generation S6 gearbox, Regal with a deadweight of 1.6 tons realized a performance of approximately 9L per 100 kilometers. Not only that, SIDI direct injection technology is also installed in the Shanghai General Motors under the 3.0 and 3.6 and other higher engine, and achieved an excellent market reputation.

2. Turbocharged as flagship power In the GM turbine engine, the first to scrutinize was the early assembly of Buick New Regal, the new LaCrosse 2.0L SIDI direct-injection turbocharged engine, with comparable level of 3.0 to 3.6L displacement class Acceleration torque.

Among the small-displacement turbine engines, the most familiar are the ECOTEC 1.6T engines fitted in Buick New Regal, Buick Hideo and Chevrolet Cruze, and the BCOkola ECOTEC 1.4T engine with DVVT and super-booster technology. It is widely used as a flagship power in compact cars and small SUVs. Compared to Volkswagen's EA111 and 888 series, it does not use direct injection technology, but it does not fall behind in terms of output.

However, the Cadillac XTS and ATS currently sold in China are equipped with the latest 2.0T SIDI engine unique to the Cadillac brand, featuring single-turbo dual eddy channel design, SIDI in-cylinder direct injection technology, and toothed chain and spin-cast aluminum cylinder heads. A number of leading technology, its high efficiency, light weight, low loss characteristics make this engine a considerable amount of power, torque output, its overall progress in turbocharged technology can not be underestimated.