Toyota TTC (Toyota Total Clean System) [1] is a moniker used in Japan to identify vehicles built with emission control technology. This technology was installed so that vehicles would comply with Japanese emission regulations passed in 1968. The term was introduced in Japan and included an externally mounted badge on the trunk of equipped vehicles. The technology first appeared in January 1975 on the Toyota Crown, Toyota Corona Mark II, Toyota Corona, Toyota Chaser, Toyota Carina, Toyota Corolla, and Toyota Sprinter. There were three different versions initially introduced: TTC-C for Catalyst (installing a catalytic converter), TTC-V for Vortex (installing an exhaust gas recirculation valve), and TTC-L for Lean Burn (using a lean burn method). As Toyota's technology evolved, the three systems were eventually used in conjunction in future models.
The TTC-V was a licensed copy of Honda's CVCC system [2] and was introduced in February 1975. It was only available in the Carina and Corona lines, and only on the 19R engine, a modified 18R. From March 1976, the TTC-V system was upgraded to meet the stricter 1976 emissions standards. [3] The TTC-V engine was discontinued in 1977. The "Vortex" approach was also used with Mitsubishi's MCA-Jet technology, with Mitsubishi installing an extra valve in the cylinder head, as opposed to Honda's pre-chamber approach.
Toyota installed its emission control technology in select Daihatsu vehicles, as Toyota was a part owner. The system was labeled "DECS" (Daihatsu Economical Cleanup System). [4] The first version to be installed was the DECS-C (catalyst) in the Daihatsu Charmant and the Consorte. As the Japanese emissions regulations continued to be tightened, the DECS-C system was replaced by the DECS-L (lean burn) [5] [6] method, which was also installed in the Daihatsu Fellow, on the Daihatsu A-series engine, the Daihatsu Charade, and the Daihatsu Delta.
Daihatsu Motor Co., Ltd. is a Japanese automobile manufacturer headquartered in Ikeda, Osaka Prefecture, Japan.
Kei car is the smallest category of Japanese expressway-legal motor vehicles. The term 'Kei' is a shortening of kei-jidōsha,, which translates to English as "light automobile".
A catalytic converter is an exhaust emission control device which converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction. Catalytic converters are usually used with internal combustion engines fueled by gasoline or diesel, including lean-burn engines, and sometimes on kerosene heaters and stoves.
CVCC, or Compound Vortex Controlled Combustion, is an internal combustion engine technology developed and trademarked by the Honda Motor Company.
VVT-i, or Variable Valve Timing with intelligence, is an automobile variable valve timing petrol engine technology manufactured by Toyota Group and used by brands Groupe PSA, Toyota, Lexus, Scion, Daihatsu, Subaru, Aston Martin, Pontiac and Lotus Cars. It was introduced in 1995 with the 2JZ-GE engine found in the JZS155 Toyota Crown and Crown Majesta.
The Toyota A Series engines are a family of inline-four internal combustion engines with displacement from 1.3 L to 1.8 L produced by Toyota Motor Corporation. The series has cast iron engine blocks and aluminum cylinder heads. To make the engine as short as possible, the cylinders are siamesed.
The Toyota Corona is an automobile manufactured by the Japanese automaker Toyota across eleven generations between 1957 and 2001. On launch, the Corona was Toyota's second-highest product in their range, just below the Crown. The Corona was marketed in the JDM at Toyota's Toyopet Store dealership channels, and the Corona was one of Toyota's first models exported to other global markets, followed by the smaller Toyota Corolla.
The Daihatsu Fellow Max is a small Japanese automobile in the Kei car class. Originally introduced as the Daihatsu Fellow, the name was partially retained for its successor, the Max Cuore (1977), and then revived in 2000 for the Daihatsu Max.
The Toyota R family was a series of inline-four gasoline automobile engines. Designed for longitudinal placement in such vehicles as the Celica and Hilux and in production from 1953 through 1997, usage faded out as many of Toyota's mainstream models moved to front-wheel drive. Overhead cam (OHC) versions featured a chain-driven camshaft.
The Toyota T series is a family of inline-4 automobile engines manufactured by Toyota beginning in 1970 and ending in 1985. It started as a pushrod overhead valve (OHV) design and later performance oriented twin cam (DOHC) variants were added to the lineup. Toyota had built its solid reputation on the reliability of these engines.
Lean-burn refers to the burning of fuel with an excess of air in an internal combustion engine. In lean-burn engines the air–fuel ratio may be as lean as 65:1. The air / fuel ratio needed to stoichiometrically combust gasoline, by contrast, is 14.64:1. The excess of air in a lean-burn engine emits far less hydrocarbons. High air–fuel ratios can also be used to reduce losses caused by other engine power management systems such as throttling losses.
The Toyota Carina is an automobile which was manufactured by Toyota from December 1970 to December 2001. It was introduced as a sedan counterpart of the Celica, with which it originally shared a platform. Later, it was realigned to the Corona platform, but retained its performance image, with distinctive bodywork and interior — aimed at the youth market and remaining exclusive to Japanese Toyota dealerships Toyota Store. It was replaced in Japan by the Toyota Allion in 2001 and succeeded in Europe by the Toyota Avensis.
The Toyota S Series engines are a family of straight-four petrol engines with displacements between 1.8 and 2.2 litres, produced by Toyota Motor Corporation from January 1980 to August 2007. The S series has cast iron engine blocks and aluminium cylinder heads. This engine was designed around the new LASRE technology for lighter weight – such as sintered hollow camshafts.
The Japan Mobility Show (ジャパンモビリティショー), called Tokyo Motor Show (東京モーターショー) (TMS) until 2019, is a biennial auto show held in October–November at the Tokyo Big Sight, Tokyo, Japan for cars, motorcycles and commercial vehicles. Hosted by the Japan Automobile Manufacturers Association (JAMA), it is a recognized international show by the Organisation Internationale des Constructeurs d'Automobiles, and normally sees more concept cars than actual production car introductions, which is the reason why the automotive press sees the show as one of the motorshow's big five.
The Toyota Dyna is a light to medium-duty cab over truck for commercial use. In the Japanese market, the Dyna is sold alongside its twin called the Toyoace. The Toyoace was a renaming of the Toyopet SKB Truck as a result of a 1956 public competition with 200,000 entries. "Dyna" is short for dynamic.
The Toyota Y engine is a series of overhead valve straight-four petrol engines manufactured by Toyota from 1982 through 1996. The Y engine has mostly been used in commercial and off-road vehicles.
The Corolla E30/E50 was the third generation of cars sold by Toyota under the Corolla nameplate. It was built from August 1974 to July 1981 and marked Toyota's greatest growth in the United States in the wake of the fuel crisis. In addition to its sister model, the Sprinter, there was a redesigned-body version built by Toyota affiliate Daihatsu, called the Daihatsu Charmant. While there were certain fourth-generation models with a longer model life, this generation, when considered as a whole, was the longest-lived one, possibly due to the worldwide recession in the 1970s. A large range of cars was built using this chassis, including Corollas, Sprinters, Daihatsu, and the sporty Levin and Trueno models with the DOHC motor, with a fuel injection upgrade added to Japanese Levin models in January 1977.
The automotive industry in Japan is one of the most prominent and largest industries in the world. Japan has been in the top three of the countries with the most cars manufactured since the 1960s, surpassing Germany. The automotive industry in Japan rapidly increased from the 1970s to the 1990s and in the 1980s and 1990s, overtook the U.S. as the production leader with up to 13 million cars per year manufactured and significant exports. After massive ramp-up by China in the 2000s and fluctuating U.S. output, Japan is currently the third largest automotive producer in the world with an annual production of 9.9 million automobiles in 2012. Japanese investments helped grow the auto industry in many countries throughout the last few decades.
The Daihatsu A-series engine is a range of compact two-cylinder internal combustion piston engines, designed by Daihatsu with the aid of their owner Toyota. Petrol-driven, it has cast iron engine blocks and aluminum cylinder heads, which are of a single overhead cam lean burn design with belt-driven camshafts. The head design was called "TGP lean-burn", for "Turbulence Generating Pot". The engine also had twin balancing shafts, which provided smoothness equivalent to that of a traditional four-cylinder engine - although it also cost nearly as much to build.
Mitsubishi MCA stands for Mitsubishi Clean Air, a moniker used in Japan to identify vehicles built with emission control technology. The term was first introduced in Japan, with later introductions internationally. The technology first appeared in January 1973 on the Mitsubishi 4G32A gasoline-powered inline four cylinder engine installed in all Mitsubishi vehicles using the 4G32 engine, and the Saturn-6 6G34 six-cylinder gasoline-powered engine installed in the Mitsubishi Debonair. The technology was installed so that their vehicles would be in compliance with Japanese Government emission regulations passed in 1968.