About The Ls600H/Ls600Hl - Lexus LS600L Dismantling Manual

About the LS600h/LS600hL

The LS600h/LS600hL sedan joins the RX400h and GS450h as a hybrid model for
Lexus. Lexus Hybrid Drive means that the vehicle contains a gasoline engine and an
electric motor for power. The two hybrid power sources are stored on board the
vehicle:
1. Gasoline stored in the fuel tank for the gasoline engine.
2. Electricity stored in a high voltage Hybrid Vehicle (HV) battery pack for the
electric motor.
The result of combining these two power sources is improved fuel economy and
reduced emissions. The gasoline engine also powers an electric generator to recharge
the battery pack; unlike a pure all electric vehicle, the LS600h/LS600hL never needs to
be recharged from an external electric power source.
Depending on the driving conditions one or both sources are used to power the vehicle.
The following illustration demonstrates how the LS600h/LS600hL operates in various
driving modes.
n During light acceleration at low speeds, the vehicle is powered by the electric motor.
The gasoline engine is shut off.
o During normal driving, the vehicle is powered mainly by the gasoline engine. The
gasoline engine also powers the generator to recharge the battery pack.
p During full acceleration, such as climbing a hill, both the gasoline engine and the
electric motor power the vehicle.
q During deceleration, such as when braking, the vehicle regenerates the kinetic
energy from the wheels to produce electricity that recharges the battery pack.
r While the vehicle is stopped, the gasoline engine and electric motor are off, however
the vehicle remains on and operational.
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