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Glossary of Hybrid
Technology Terms
12-volt Battery
The low-voltage battery that provides electrical
power to accessories and the vehicle's computer,
similar to the battery of a conventional vehicle.
AC
Electrical current that reverses its flow in a circuit at regular intervals.
The RX400h's electric motors operate on AC current.
DC
Electrical current that flows continuously in one direction. The RX400h's hybrid
battery and 12-volt battery provide DC current.
Electronically-controlled Continuously Variable
Transmission (ECVT)
A type of transmission with an infinite number of gear
ratios that change depending on vehicle
speed and engine rpm. As a result, the engine and the
motors operate at their most efficient points regardless
of the vehicle's speed. The ECVT in the RX 400h
provides seamless acceleration without the shift points felt with conventional trans-
missions. The front electric motor/generators and the planetary gear set are part
of the ECVT, which has fewer parts than a conventional automatic transmission.
Engine
In a hybrid vehicle, the word "engine" refers to the
gasoline engine, not an electric motor.
The gasoline-powered 3.3L V-6 is the primary
power source for the RX400h.
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HYBRID OVERVIEW
RX 400h