Few things enrage car fanatics like the sequential manual gearbox from BMW.
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A BMW SMG Transmission: What Is It?
SMG, or sequential manual gearbox, stands for that. It is simply a transmission with the ability to operate as either an automatic or a manual transmission. The novel feature is that, when driving an automatic vehicle, the driver only needs to select the desired gear instead of pressing a clutch pedal. Depending on the BMW model, either a conventional stick or a set of paddle shifters mounted to the steering column or steering wheel are used for this. Even though automated mode uses less gasoline, manual mode offers better engine performance while eliminating the human element and its potential for error. This ensures the transmission and all of its associated elements have a longer lifespan.
BMW stopped utilizing SMG when?
ZF had finished developing a 7-speed dual-clutch transmission by the year 2005. The official announcement was made in the middle of September, at the same time as BMW discontinued the SMG in the 3 series.
Which BMWS had an SMG?
The Getrag six-speed used in three-pedal versions of the automobile served as the primary inspiration for the SMG II featured in the E46 M3. When these automobiles were first released, their purchasers, many of whom were still exuberant from their profits from the dot-com boom, chose the newest, fanciest technology for their new sports car.
How is an SMG defined?
Although every attempt has been made to adhere to the citation style guidelines, there may still be some inconsistencies.
If you have any questions, kindly consult the relevant style guide or other sources.
Lightweight automatic small-arms weapon fired from the hip or shoulder that is known as a submachine gun. It is chambered for comparatively low-energy pistol rounds. Most varieties use straightforward blowback techniques. They typically feature box-style magazines that contain between 10 and 50 rounds, however occasionally drums holding more rounds are used. They use cartridges of calibres such as.45 inch or 9 mm. The submachine gun is a short-range weapon that is ineffective at distances greater than 200 yards. It weights 6 to 10 pounds and fires at rates of up to 650 rounds per minute.
The submachine gun, which was created during World War I, was in high demand during World War II due to the necessity to improve each soldier’s firepower at close range. The earliest of these weapons was created by the Germans, who partially based them on the Italian double-barreled Villar Perosa, or VP, a 1915 invention whose rapid fire emptied its magazine in two seconds. The MP18, also known as the Bergmann Muskete, was the name given by the Germans to their weapon, the first real submachine gun. Submachine guns, also known as machine carbines in Britain, machine pistols in Germany, and submachine guns in the United States, were first produced in 1918, the final year of World War I. In 1920, the Thompson submachine gun (q.v. ), sometimes known as the Tommy Gun, became a significant American type. Numerous evolutionary models emerged after 1925, including the German Bergmann Model 34 and Schmeisser 28 II, the Italian Beretta Model 38, and the Hungarian Model 43. The Soviet 7.62 mm PPSh M1941 and PPS M1943, the German Schmeisser MP38 and MP40, the Israeli Uzi submachine gun (q.v. ), the Czech Model 23, the British 9 mm Sten gun, the Soviet 7.62 mm PPSh M1941 and PPS M1943, the American M3, a.45-inch calibre, nine-pound weapon known as the “grease gun” because it resembled the tool used
When a submachine gun is fired, expanding gases usually propel the projectile forward. Additionally, the gases force the large bolt back up against a spring. The magazine spring pushes the subsequent bullet into position as the movement extracts and expels the spent cartridge. The powerful spring behind the bolt keeps applying pressure as long as the trigger is held depressed, firing all bullets. Many novel ideas have been included into new models to lighten them, make them safer, and make maintenance easier.
Has the BMW SMG a clutch?
Bid adieu to BMW’s SMG sequential manual transmission and welcome its new DCG double clutch transmission. The seven-speed gearbox, officially known as the M Double-Clutch Transmission with Drivelogic, will make its premiere in the 2009 M3 when the first vehicles start arriving in coupe, convertible, and sedan body types in the middle of spring. How much more expensive the system would be compared to the normal six-speed manual has not yet been disclosed by BMW.
The DCG’s two oil-cooled wet clutches, one for the even gears and one for the odd gears and reverse, are essential to its operation. According to the automaker, this allows for nearly immediate up- or downshifts while the computer readies the next gear based on engine and road speed while the vehicle is in motion.
In order to reduce power loss and improve shift smoothness, the computer is also designed to regulate torque output and rev match between the engine and transmission. Given that the M3’s 414 horsepower (in U.S.-spec) V-8 redlines at 8,400 RPM, BMW claims that DCG is the first transmission of its kind built to manage engine speeds of up to 9,000 RPM.
The DCG will have many characteristics in addition to the lightning-fast shifts. The logic will have a choice of eleven shift modes, including a launch control mode, with five automatic and six manual options. In comparison to the SMG modes for the M5 and M6, hopefully the settings will be simpler to locate in the depths of iDrive.
Either a normal lever or paddles located on the steering wheel can be used to start a shift. Eight LED shift lights in the dash—six yellow and two red, probably one for every 1,000 RPMs—help with shifting when in manual mode. As engine speed rises, these lights turn on one at a time and start to flash as the engine gets close to its redline.
The MDrive button allows owners who are bold enough to navigate the options to modify how the gearbox behaves, albeit it is unclear exactly what may be changed. However, if the DCG performs as well as Volkswagen’s renowned DSG, the six-speed manual might finally end up being limited to purists.
SMG is automatic.
A submachine gun (SMG) is an automated carbine that uses a magazine to feed the bullets for handguns. John T. Thompson, the creator of the Thompson submachine gun, created the phrase “submachine gun” to describe its design concept as an automatic weapon with noticeably less firepower than a machine gun. Submachine guns are not regarded as machine guns because they do not fire rifle ammunition, as required for the designation.
The submachine gun was created for trench storming during World War I (1914–1918) as a close-range offensive weapon. Millions of SMGs were produced at the height of production during World War II (1939–1945) for use by partisans, clandestine commandos, and regular forces alike. New SMG designs often appeared following the conflict. However, SMG use started to decline by the 1980s. Assault rifles, which have a greater effective range and can pierce the helmets and body armor worn by modern infantry, have virtually supplanted submachine guns today. For close-quarters combat (CQB), however, submachine guns are still employed by police SWAT teams and military special forces because they are “a pistol-caliber weapon that is easy to manage and less likely to overpenetrate the target.”
What purposes do Smgs serve?
In situations where the weapon is equipped with subsonic ammo, submachine guns lend itself to moderate use of suppressors. Integrated suppressor versions of the Sten and current Heckler & Koch MP5 have been produced, and special forces and police groups occasionally utilize such weapons. Battle rifles and submachine guns were both replaced by new assault rifles like the CAR-15 and Heckler & Koch HK53.
Israel had created an open-bolt, blowback-operated submachine gun in the late 1940s, known as the Uzi (after its creator).
Over the years, the Uzi has grown to be one of the most popular submachines, having sold more than 10 million units.
Although submachine guns still have a strong hold on niche users, due to their advantage in compact size, they are facing competition from carbines and shortened assault rifles. Submachine guns are used by special forces, police, and counter-terrorist units operating in urban environments or confined interior areas. Submachine guns are also defense weapons for air crews, combat vehicle crews, and naval personnel.
Some residents in South Africa and Rhodesia received modified submachine guns known as Land Defense Pistols (LDP) during the Apartheid era, such the Kommando LDP and Sanna 77, which were loosely based on the Czech CZ Model 25. LDPs, which were submachine weapons identical to pistols that were offered to citizens, could only fire semi-automatically.
The personal defense weapon (PDW), a machine pistol-like weapon that fires armor-piercing pistol cartridges, is also promoted as a further development of the submachine gun. The PDW is frequently compared to submachine guns because of how it functions. Modern submachine guns have tended to be lighter, smaller weapons that make more use of polymers.
The SMG was created when?
The Thompson submachine gun, often known as the Tommy gun, was created by American John T. Thompson and patented in 1920. It fired.45-caliber ammunition, weighed almost 10 pounds (4.5 kg), and was empty. The magazine was either a box holding 20 or 30 shots or a circular drum holding 50 or 100 rounds.
Many of the infantry weapons used in World War I had exceptional long-range accuracy. Although they were typically longer than 5 feet [150 cm] with a bayonet attached and had a relatively modest fire rate, these weapons were not designed for the close-quarters warfare found in the Western Front trenches. Thompson, a U.S. inventor, discovered the friction-delayed blowback firing motion patented by John Bell Blish in 1915. The goal of the Army ordnance officer was to turn that concept into a useful “trench sweeper” weapon. Thompson’s “trench sweeper,” which was chambered for the same.45 calibre round as the M1911 Colt handgun, had exceptional stopping power but a significantly constrained effective range. But by the time Thompson’s model was finished, the First World War was over.
Although both the Army and the U.S. Army gave Thompson’s submachine gun favorable reviews, Marine Corps, neither military initially chose to buy it frequently. Instead, the item, often known as the “Tommy gun,” gained notoriety during the U.S. For its usage by gangsters in violent episodes like the St. Valentine’s Day Massacre during the Prohibition era (1920–1933). In fact, the Thompson became so well-known during that time—but falsely—that it is frequently regarded as the original submachine gun. In 1928, the Thompson submachine gun was adopted by the American Army. In World War II, not just the British but also the American and other military forces deployed it.
Describe SMG pump.
The SMG pump (seen below) resembles an ABS pump in both form and operation, however it regulates transmission hydraulic pressures rather than brake system pressures. Location of the SMG Pump on a 2003 (E46) BMW M3
SMG is it manual or automatic?
SMG, or sequential manual gearbox, stands for that. The manual gearbox is identical to those seen in cars with a clutch pedal, but instead of being handled by foot, it is electro-hydraulically powered by a pump and connected to computers.