Authors

M. Tomita, S. Sasaki, S. Suenaga, H. Kato, K. Yuki, Y. Kuruma, K. Murasato, Y. Matsumoto, Toyota Motor Corporation, Aichi, Japan

Year

2026

Print Info

Production/Publication ÖVK

Summary

The energy situations and charging infrastructure conditions, as well as the availability of resources such as rare metals used in batteries and motors, vary across regions. To steadily reduce CO2 emissions under these circumstances, Toyota has adopted a multi-pathway strategy. Plug-in hybrids (PHEVs) are considered an effective powertrain that can utilize existing assets such as conventional internal combustion engines, reduce CO2 emissions with less battery capacity compared to battery EVs (BEVs), and do so without compromising traditional lifestyles. Toyota has previously introduced and evolved PHEVs in models such as the RAV4, Prius, and C-HR. To further promote this multi-pathway strategy, Toyota has developed a new powertrain for the new RAV4 that enhances environmental performance while increasing commonality with hybrids (HEVs) and battery EVs (BEVs). This paper discusses the development objectives, configuration, and performance improvements of the new PHEV system, including the miniaturization of powertrain components, enhanced compatibility with HEVs and BEVs, and advancements in thermal management and NVH (Noise, Vibration, and Harshness) performance. The new system aims to extend the EV
driving range, improve fuel efficiency, and provide a better driving experience even in lowtemperature environments. The results demonstrate that the new PHEV system significantly contributes to Toyota's goal of reducing CO2 emissions and advancing electrification.

ISBN

978-3-9504969-5-6

DOI

https://doi.org/10.62626/4w3r-btey Copy link

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