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Skyactiv
Skyactiv (branded as SKYACTIV) is a brand name for a series of automobile technologies developed by Mazda that increase fuel efficiency and engine output. The initial announcement of the Skyactiv technologies included new engines, transmissions, body, and chassis, which appeared in Mazda products from 2011 onwards. The Mazda Sky concept The precursor of Skyactiv, which featured a Mazda Sky-G 2.3-liter direct injection gas engine, a Mazda Sky-D 2.2-liter diesel engine, a Sky-Drive automatic transmission, a Mazda Kiyora with Sky-G 1.3 engine and Sky-Drive automatic transmission, was unveiled at the 40th Tokyo Motor Show in 2008. The Skyactiv concept features a revised suspension geometry, improved automatic and manual transmission, and various improvements to Mazda's L- engine such as direct injection, upgraded exhaust manifold, increased compression ratio for cleaner burn and higher thermal efficiency, etc. Mazda's previous chassis for the Mazda3 and Mazda6 were carried over to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mazda3
The Mazda3 (known as the Mazda Axela in Japan (first three generations), a combination of "accelerate" and "excellent") is a compact car manufactured by Mazda. It was first introduced in 2003 as a 2004 model, replacing the Familia/323/Protegé in the C-segment. The second-generation Mazda3 for the 2009 model year was unveiled in late 2008, with the sedan premiering at the Los Angeles Auto Show and the hatchback at the Bologna Motor Show. For the 2012 model year, Mazda began offering the Mazda3 with their newly-developed Skyactiv technology, including a more rigid body, a new direct-injection engine, and a new 6-speed transmission. The third generation was introduced in mid-2013 as a 2014 model year. The third-generation model is the first Mazda3 to adopt the "Kodo" design language and a more complete Skyactiv range of technologies. The fourth-generation Mazda3 for the 2019 model year was unveiled in November 2018 at the Los Angeles Auto Show. For the 2019 model, the all-new M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mazda2
The Mazda2 is a subcompact/ supermini (B-segment) car manufactured and marketed by Mazda since 2002, currently in its third generation. An entry-level model of the brand in markets outside Japan, the Mazda2 is positioned below the Mazda3. The Mazda2 has also been marketed as the Mazda Demio (a name it kept in the Japanese market until 2019), while its direct predecessor was exported as the Mazda 121. The second-generation Mazda2 earned the 2008 World Car of the Year title, while the third-generation model was awarded the 2014–2015 Japanese Car of the Year. The third-generation model was sold in North America as the Scion iA and Toyota Yaris, Yaris iA and Yaris R. A separate, petrol-hybrid version based on the Toyota Yaris Hybrid has been sold in Europe under the same Mazda2 nameplate since 2022 alongside the petrol-powered third-generation Mazda2. Predecessor When it came to redesigning the Revue, Mazda came up with a tall hatchback, minivan-esque package. Introd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mazda CX-3
The Mazda CX-3 is a subcompact crossover SUV manufactured by Mazda. Based on the same platform as the Mazda2 (DJ/DL), it was revealed to the public with a full photo gallery on November 19, 2014, and first put on display two days later at the 2014 Los Angeles Auto Show, as a production vehicle for the model year of 2016. Overview The CX-3 is offered with an array of engines, such as a 1.5-litre and 2.0-litre four-cylinder Skyactiv-G gasoline engine, and a 1.5 L Skyactiv-D diesel engine. CX-3 sales began in the United States in the end of 2015, as a model for 2016. It replaced the similar Mazda2 subcompact in the market in North America. Across the model lineup, power is provided by an updated (2018) 2.0-litre Skyactiv-G engine that develops and 148 lb ft (201 Nm) of torque. It is connected to a six speed automatic transmission that can be paired to an optional all wheel drive system. In the United States, the entry level CX-3 Sport, Touring and Grand Touring all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mazda MX-5 (ND)
The Mazda MX-5 (ND) is the fourth and current generation of the Mazda MX-5. Mazda officially unveiled the car on September 3, 2014, in the United States and Spain, and on September 4, 2014, in Japan. The new MX-5 was presented at the October 2014 Paris Motor Show, and at the November 2014 Los Angeles Auto Show. The car is manufactured in Mazda's Hiroshima plant since March 4, 2015. The vehicle was released in the third quarter of 2015. In the US, the release price of the MX-5 was between $24,915 and $30,065. On March 24, 2016 the MX-5 was awarded World Car of the Year (WCOTY) and the World Car Design of the Year at the New York Auto Show. It was the second Mazda to win WCOTY following the Demio/Mazda2 in 2008. Overview The fourth generation MX-5 is shorter and lighter than its predecessor, putting the vehicle's curb weight near . Incorporating Mazda's Skyactiv technology, the Miata is offered with a choice of two direct injection, naturally aspirated petrol engines. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compression Ratio
The compression ratio is the ratio between the volume of the cylinder and combustion chamber in an internal combustion engine at their maximum and minimum values. A fundamental specification for such engines, it is measured two ways: the static compression ratio, calculated based on the relative volumes of the combustion chamber and the cylinder when the piston is at the bottom of its stroke, and the volume of the combustion chamber when the piston is at the top of its stroke. The dynamic compression ratio is a more advanced calculation which also takes into account gasses entering and exiting the cylinder during the compression phase. Effect and typical ratios A high compression ratio is desirable because it allows an engine to extract more mechanical energy from a given mass of air–fuel mixture due to its higher thermal efficiency. This occurs because internal combustion engines are heat engines, and higher compression ratios permit the same combustion temperature t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasoline Direct Injection
Gasoline direct injection (GDI), also known as petrol direct injection (PDI), is a mixture formation system for internal combustion engines that run on gasoline (petrol), where fuel is injected into the combustion chamber. This is distinct from manifold fuel injection systems, which inject fuel into the intake manifold. The use of GDI can help increase engine efficiency and specific power output as well as reduce exhaust emissions. The first GDI engine to reach production was introduced in 1925 for a low-compression truck engine. Several German cars used a Bosch mechanical GDI system in the 1950s, however usage of the technology remained rare until an electronic GDI system was introduced in 1996 by Mitsubishi for mass-produced cars. GDI has seen rapid adoption by the automotive industry in recent years, increasing in the United States from 2.3% of production for model year 2008 vehicles to approximately 50% for model year 2016. Operating principle Charge modes The 'char ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mazda6
The Mazda6 (known as the Mazda Atenza in Japan and China, derived from the Italian '' attenzione'') is a mid-size sedan produced by Mazda since 2002, replacing the long-produced Capella/626. The Mazda6 was marketed as the first example of the company's "Stylish, Insightful and Spirited" design philosophy, followed by the Mazda2 in December 2002, the RX-8 in August 2003, the Mazda3 in January 2004, the Mazda5 in the summer of 2005, the MX-5 in October 2005, and the CX-7 in November 2006. The 2003 Mazda6 is essentially the seventh-generation Mazda 626, part of the 'G' model code family. First generation (GG1; 2002) The first-generation Mazda6 was launched in Japan as the Mazda Atenza in May 2002. The model lineup consisted of a four-door sedan, a four-door hatchback and a five-door wagon, marketed in North America as the "Sport Sedan", "5-Door" and "Sport Wagon", respectively. In Australia, the lineup was first available in Limited trim, as a sedan; in Classic trim as se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petrol Direct Injection
Gasoline direct injection (GDI), also known as petrol direct injection (PDI), is a mixture formation system for internal combustion engines that run on gasoline (petrol), where fuel is injected into the combustion chamber. This is distinct from manifold fuel injection systems, which inject fuel into the intake manifold. The use of GDI can help increase engine efficiency and specific power output as well as reduce exhaust emissions. The first GDI engine to reach production was introduced in 1925 for a low-compression truck engine. Several German cars used a Bosch mechanical GDI system in the 1950s, however usage of the technology remained rare until an electronic GDI system was introduced in 1996 by Mitsubishi for mass-produced cars. GDI has seen rapid adoption by the automotive industry in recent years, increasing in the United States from 2.3% of production for model year 2008 vehicles to approximately 50% for model year 2016. Operating principle Charge modes The 'charg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mazda
, commonly referred to as simply Mazda, is a Japanese multinational automotive manufacturer headquartered in Fuchū, Hiroshima, Japan. In 2015, Mazda produced 1.5 million vehicles for global sales, the majority of which (nearly one million) were produced in the company's Japanese plants, with the remainder coming from a variety of other plants worldwide. During this time, Mazda was the 15th-largest automaker in terms of production globally. History Creation Mazda began as the Toyo Cork Kogyo Co., Ltd, as a cork-making factory founded in Hiroshima, Japan, 30 January 1920. Toyo Cork Kogyo renamed itself to Toyo Kogyo Co., Ltd. in 1927. In the late 1920s the company had to be saved from bankruptcy by Hiroshima Saving Bank and other business leaders in Hiroshima. In 1931, Toyo Kogyo moved from manufacturing machine tools to vehicles with the introduction of the Mazda-Go auto rickshaw. The name ''Mazda'' came into existence with the production of the company's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultra-low-emission Vehicle
An ultra-low-emission vehicle (ULEV) is a motor vehicle that emits extremely low levels of motor vehicle emissions compared to other vehicles. In some jurisdictions it is defined in law; low and ultra low emission vehicles may be given tax or other advantages, while high emission vehicles may suffer restrictions or additional taxation. Ultra Low Emission tax classification (Japanese) In California California defines a ULEV as a vehicle that has been verified by the California Air Resources Board (CARB), United States to emit 50% less polluting emissions than the average for new cars released in that model year. Under LEV II regulations, the Tier I and TLEV classifications were removed for 2004. The ULEV is one of a number of designations given by the CARB to signify the level of emissions that car-buyers can expect their new vehicle to produce and forms part of a whole range of designations, listed here in order of decreasing emissions: ;TLEV (transitional low-emission vehicl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable Valve Timing
In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with variable valve lift systems. There are many ways in which this can be achieved, ranging from mechanical devices to electro-hydraulic and camless systems. Increasingly strict emissions regulations are causing many automotive manufacturers to use VVT systems. Two-stroke engines use a power valve system to get similar results to VVT. Background theory The valves within an internal combustion engine are used to control the flow of the intake and exhaust gases into and out of the combustion chamber. The timing, duration and lift of these valve events has a significant impact on engine performance. Without variable valve timing or variable valve lift, the valve timing is the same for all engine speeds and conditions, therefore compromises are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Direct Ignition
A distributor is an enclosed rotating switch used in spark-ignition internal combustion engines that have mechanically timed ignition. The distributor's main function is to route high voltage current from the ignition coil to the spark plugs in the correct firing order, and for the correct amount of time. Except in magneto systems and many modern computer controlled engines that use crank angle/position sensors, the distributor also houses a mechanical or inductive breaker switch to open and close the ignition coil's primary circuit. The first reliable battery operated ignition was the Delco ignition system developed by Dayton Engineering Laboratories Co. (Delco) and introduced in the 1910 Cadillac Model 30. This ignition was developed by Charles Kettering and was considered a wonder in its day. Atwater Kent invented his Unisparker ignition system about this time in competition with the Delco system. By the end of the 20th century mechanical ignitions were disappearing fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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