800-V-Hochspannungs-Energiespeicher
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What is a 800 volt inverter?
Inverters specifically designed for a voltage of 800 V also contribute to more comfortable acceleration behavior of the vehicle in the drive system, in addition to shorter charging times. Compared to the previous generation, the 800-V inverter presented in the following delivers twice the voltage and offers 2.7 times the power density.
Who invented the 800v inverter?
The 800-V inverters for the innovative vehicle of the German manufacturer - a smaller 300-A inverter for the front-wheel drive and a 600-A inverter for the rear-wheel drive - were developed by Japanese automotive supplier Hitachi Astemo, Figure 1.
What is an 800-volt system architecture?
An 800-volt system architecture requires redesigning many components in an EV. (Image: Porsche.) These values are not as fixed as their name suggests. For example, a battery voltage range of 300 – 500 volts is referred to as a 400-volt architecture, and a 600 – 900 volt range is considered an 800-volt architecture.
What is an 800 volt battery architecture?
Shifting to an 800-volt architecture is not a matter of simply connecting batteries to get a voltage of 800 volts; this operating voltage is a key parameter for designing all other high-voltage devices in the car. Higher battery voltages mean increased EV efficiency, improved performance and better charging.
Why is 800V better than 400V?
This is because 800 V allows the battery to absorb twice as much power in the same period of time as a 400-V system, which enables high-capacity batteries to be charged quickly.
What is a Hitachi astemo 800-v inverter?
To enable the technical implementation of an 800-V inverter, Hitachi Astemo has completely redesigned the inverter's insulation structure and developed a compact power module with double-sided cooling and a new mounting technique for heat dissipation with high-voltage insulation.