Watanabe also said that the break-over point will be around 100 kWh because EVs with 100 kWh or larger batteries will have the new 800-volt architecture.
see photosThe Japanese luxury carmaker says the technology will be used on cars with batteries over 100 kWh
Toyota’s luxury car brand Lexus has developed a new 800-volt electrical architecture that outlines its ambitions in the EV space. Chief Engineer of Lexus Takashi Watanabe has acknowledged that the high voltage architecture has been finalized. He also said that this would not mean that this technology would be used for all Lexus and Toyota vehicles. For example, already 2023 Lexus RZ 450e runs on 400 volts.
The main reason for this variation is the relationship between battery capacity and charging. The bigger battery can handle the faster charging architecture and Lexus is considering a “case by case” basis.
Watanabe also said that the break-over point will be around 100 kWh because EVs with 100 kWh or larger batteries will have the new 800-volt architecture. It’s not much different from what Tesla claims. It claimed that the Cybertruck and Tesla Semi trucks are candidates for 800-volt architecture, while smaller cars like the Model 3 and Model Y will also have 400-volts for economic reasons.
Lexus’ first electric car doesn’t have this technology
Watanabe revealed that in the case of Lexus anything over 150 kW is expensive for both the vehicles and the manufacturers and the charging infrastructure. Lexus will focus on region-specific needs.
In the US, 150 kW charging stations are quite prevalent, but 350 kW fast-charging stations are beginning to emerge. In India we see charging stations over 50 kW.
“CCS is the global standard, it is something that is convenient, and CCS 150 (kW) looks like it will be the majority for the foreseeable future,” he said.
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He also said that now with the OTA update there are no limits, it can also modify things like electric motor control, charging and support system. There’s also a new ECU system that Lexus is putting together.
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