| Hybrid Synergy Drive reveals another
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| | engine often shuts down-a fuel-saving
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| virtue: Performance. Public viewing of
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| | benefit of the hybrid system-especially
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| the 2006 Lexus RX400 in early 2005
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| | when the vehicle is stopped or driven
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| reveals combined fuel efficiency in the
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| | slowly through traffic. Except for the
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| range of the current EPA average rating
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| | alternator, which is replaced by
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| for a four- cylinder compact sedan. The
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| | motor-generators, all components are now
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| RX400h will be a SULEV rated vehicle
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| | electrically powered which means notably
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| which means driving from Los Angeles to
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| | lower parasitic losses to the engine and
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| New York and back nine times (54,000
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| | improved fuel consumption.
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| miles) yet produce less- smog forming
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| | The Lexus hybrid technology also allows
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| emissions.
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| | extended electric-mode operation during
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| The 2006 Lexus RX400h combines 3.3 liter
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| | low speed or stop-and-go driving
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| V6 gasoline engine with two electric
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| | conditions. The permanent-magnet front
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| drive motors: a strong 120 kW (161
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| | electric drive motor (MG2) produces peak
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| horsepower) motor positioned near the
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| | torque from zero-to-1,500 RPM, giving the
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| rear wheels. The new Hybrid System will
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| | RX 400h powerful and instantaneous
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| deliver a peak output of 270 horsepower
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| | response that will be especially felt and
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| with a 20% increase compared to the
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| | appreciated in low- and mid-speed
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| non-hybrid RX330 power train. Much more
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| | performance and in merging and passing
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| impressive is the 30-50 mph passing
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| | maneuvers.
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| acceleration of the high output electric
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| | A regenerative braking system further
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| motor that delivers a high burst of
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| | boosts system efficiency. When the RX
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| torque.
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| | 400h is coasting or the brakes are
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| Future Toyota Hybrid Synergy Drives hold
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| | applied, the electric motors function as
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| the potential to operate even more
| |
| | generators, capturing kinetic energy that
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| efficiently using new types of batteries
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| | would normally be lost as heat through
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| and fuels. According to Fujio Cho,
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| | the brakes and transforming it into
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| President of Toyota Motor Corporation "
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| | useable electricity to recharge the
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| Toyota's Hybrid System will make up the
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| | batteries.
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| heart of our hydrogen fuel cell program
| |
| | With the RX 400h, Lexus also introduces a
|
| of tomorrow".
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| | new generation of vehicle stability
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| The advantage of a hybrid driveline is
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| | control systems known as Vehicle Dynamics
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| that it eliminates hardships associated
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| | Integrated Management (VDIM). A vital
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| with electric cars to provide
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| | component of VDIM is a new Electronically
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| breakthrough performance, exemplary fuel
| |
| | Controlled Braking system (ECB). The ECB
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| efficiency, very low exhaust emissions,
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| | system translates brake pedal stroke
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| and a high level of convenience.
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| | speed and pressure and generates the
|
| 2006 Lexus RX400h introduces a new era of
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| | precise amount of combined electric
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| enhanced performance dimension to the
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| | regeneration and hydraulic pressure
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| widely known hybrid advantages of
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| | needed for virtually any driving
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| excellent fuel mileage and low emissions.
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| | condition.
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| The RX 400h will be rated as a Super
| |
| | VDIM allows more optimized operation of
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| Ultra Low Emission Vehicle (SULEV) in
| |
| | the vehicle's dynamic handling systems
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| California (Tier 2 - Bin 3 in other
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| | that employ the brakes: ABS, Brake
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| states), one of the most stringent
| |
| | Assist, Vehicle Stability Control (VSC)
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| emissions ratings in the industry.
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| | and traction control (TRAC). VDIM also
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| The Lexus RX 400h is defined as a "full
| |
| | interfaces with the Electronic Throttle
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| hybrid," which means that it is capable
| |
| | Control system, allowing it to modify
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| of operating in electric-only or gas
| |
| | vehicle power when needed, and a new
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| engine-only mode as well as a mode that
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| | Electronic Power Steering system (EPS) to
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| combines the power of the gas engine and
| |
| | optimize steering assist for each
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| electric motor. In contrast, other hybrid
| |
| | situation.
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| technologies are not capable of running
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| | When the RX 400h is coasting or the
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| only on electrical power, but instead
| |
| | brakes are applied, the electric motors
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| require constant gas engine operation.
| |
| | function as generators, capturing kinetic
|
| In making the transition to a hybrid
| |
| | energy that would normally be lost as
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| power train, the alternator, power
| |
| | heat through the brakes and transforming
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| steering pump, water pump and AC
| |
| | it into useable electricity to recharge
|
| compressor are no longer engine
| |
| | the batteries. This regenerative braking
|
| belt-driven. This is because the gas
| |
| | system further boosts system efficiency.
|
