Toyota TTC: Difference between revisions
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{{Short description|Motor Vehicle}} |
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[[File:Toyota-CrownS100.JPG|thumb|Toyota Crown with "TTC-C" badge on trunklid]] |
[[File:Toyota-CrownS100.JPG|thumb|Toyota Crown with "TTC-C" badge on trunklid]] |
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'''Toyota TTC''' stands for '''T'''oyota '''T'''otal '''C'''lean System,<ref name="WC77j">{{Citation | first = Jack K. | last = Yamaguchi | journal = World Cars 1977 | title = The Year of the Third Power | publisher = The Automobile Club of Italy/Herald Books | location = Pelham, NY | page = 61 | year = 1977 | isbn = 0-910714-09-6 }}</ref> a moniker used in Japan to identify vehicles built with emission control technology. The technology was installed so that their vehicles would be in compliance with Japanese Government [[Emission standard#Japan|emission regulations]] passed in 1968. The term was first introduced in Japan, with an externally mounted badge on the trunk of vehicles equipped. The technology first appeared in January 1975 on the [[Toyota Crown]], the [[Toyota Corona Mark II]], the [[Toyota Corona]], the [[Toyota Carina]], the [[Toyota Corolla]], and the [[Toyota Sprinter]]. There were three different versions initially introduced, called TTC-C for Catalyst, installing a [[catalytic converter]], TTC-V for Vortex, installing an [[exhaust gas recirculation]] valve, and TTC-L which used a [[lean burn]] method. As Toyota's technology evolved the three systems were eventually incorporated together in future models. |
'''Toyota TTC''' stands for '''T'''oyota '''T'''otal '''C'''lean System,<ref name="WC77j">{{Citation | first = Jack K. | last = Yamaguchi | journal = World Cars 1977 | title = The Year of the Third Power | publisher = The Automobile Club of Italy/Herald Books | location = Pelham, NY | page = 61 | year = 1977 | isbn = 0-910714-09-6 }}</ref> a moniker used in Japan to identify vehicles built with emission control technology. The technology was installed so that their vehicles would be in compliance with Japanese Government [[Emission standard#Japan|emission regulations]] passed in 1968. The term was first introduced in Japan, with an externally mounted badge on the trunk of vehicles equipped. The technology first appeared in January 1975 on the [[Toyota Crown]], the [[Toyota Corona Mark II]], the [[Toyota Corona]], the [[Toyota Carina]], the [[Toyota Corolla]], and the [[Toyota Sprinter]]. There were three different versions initially introduced, called TTC-C for Catalyst, installing a [[catalytic converter]], TTC-V for Vortex, installing an [[exhaust gas recirculation]] valve, and TTC-L which used a [[lean burn]] method. As Toyota's technology evolved the three systems were eventually incorporated together in future models. |
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Revision as of 05:10, 30 October 2022
Toyota TTC stands for Toyota Total Clean System,[1] a moniker used in Japan to identify vehicles built with emission control technology. The technology was installed so that their vehicles would be in compliance with Japanese Government emission regulations passed in 1968. The term was first introduced in Japan, with an externally mounted badge on the trunk of vehicles equipped. The technology first appeared in January 1975 on the Toyota Crown, the Toyota Corona Mark II, the Toyota Corona, the Toyota Carina, the Toyota Corolla, and the Toyota Sprinter. There were three different versions initially introduced, called TTC-C for Catalyst, installing a catalytic converter, TTC-V for Vortex, installing an exhaust gas recirculation valve, and TTC-L which used a lean burn method. As Toyota's technology evolved the three systems were eventually incorporated together in future models.
The TTC-V was a licensed copy of Honda's CVCC system,[2] and was first 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 yet 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 the pre-chamber approach from Honda.
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] and the versions installed were the DECS-C (catalyst) in the Daihatsu Charmant, and the Daihatsu Consorte. As the Japanese regulations continued to be tightened, the DECS-C system was replaced by the DECS-L (lean burn)[5] method which was also installed in the Daihatsu Fellow, the Daihatsu A-series engine, the Daihatsu Charade, and the Daihatsu Delta.
References
- ^ Yamaguchi, Jack K. (1977), "The Year of the Third Power", World Cars 1977, Pelham, NY: The Automobile Club of Italy/Herald Books: 61, ISBN 0-910714-09-6
- ^ Toyoda, Eiji (1987). "Toyota - Fifty Years in Motion. Tokyo: Kodansha International. p. 142. ISBN 0-87011-823-4.
- ^ "Toyota TTC". 自動車ガイドブック [Automobile Guide Book] (in Japanese). 23. Japan: Japan Automobile Manufacturers Association: 86. 1976-10-20. 0053-760023-3400.
- ^ "ダイハツ用語集A～M" [Daihatsu Glossary, A—M] (in Japanese). Archived from the original on 2013-08-17. Retrieved 2013-10-13.
- ^ ダイハツ希薄燃焼方式 DECS-L 広報資料 - ダイハツ工業 1976/05
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