The VVT system can be divided into sectional adjustment and continuous adjustment, and the continuous adjustment VVT can be divided into the following four categories:
(1) Single intake VVT, referred to as IPS
(2) Single exhaust VVT, referred to as EPS
(3) Inlet and exhaust independent regulation VVT, referred to as DIPS
(4) Phase adjustment VVT, such as intake and exhaust, referred to as DEPS
At present, the names of different auto manufacturers on the market such as VVT, VCT, VVT-i, CVVT, DVVT, VCP, CVCP, etc. are actually one of the above technologies, and the names are different.
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