Mazda will develop a new engine for hybrid vehicles (HV). Mazda plans to put the new engine into practical use in 2025 in anticipation of its unique hybrid system to be installed in the next model of its mainstay sport utility vehicle (SUV), the CX-5. On the other hand, the number of reciprocating engines will be reduced to about four types to secure the production scale per model. Mazda will maintain its internal combustion engine development and production system during the transition to electrification, which is subject to increasingly strict environmental regulations, by developing models that make use of electric devices and consolidating current models.
Mazda has been pursuing improvements in thermal efficiency of internal combustion engines alone. The new engine for the HV will make full use of regenerative energy, and by having the electric device compensate for the internal combustion engine's weakness in cold starting and acceleration, Mazda aims to improve energy efficiency and curb exhaust emissions as a whole system in a more rational way. Mazda's answer to the question of how to use motors and electric devices as auxiliary equipment is this engine,” said Ichiro Hirose, CTO of Mazda Motor Corporation.