Yamaha Creates Acoustic Design for Engine of the Lexus LFA Super …

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Yamaha Motiv city car concept

Yamaha Creates Acoustic for Engine of the Lexus LFA Super Car

On display at the October 2009 Motor Show

Now, in the new LFA, you can experience the same that professional drivers in their cockpits when careen around test

Click here to listen to a run of the dynamic sound of the Lexus LFA and get a for what racing drivers

(The first 17 seconds and the 30 seconds were recorded the LFA, and the rest is what the hears.)

The Center for Advanced Technologies of Yamaha Corporation 10-1, Nakazawa-cho, Naka-ku, Shizuoka, President: Mitsuru and Yamaha Motor Co. Ltd. acoustic design work for the of the Lexus LFA, which be displayed at the 41st Tokyo Show that begins on 23. Yamaha Motor assisted in the engine for this sports

The goal of the acoustic design was to generate the dramatic and exciting properties that people of mass-produced super sports car the Lexus LFA.

The Lexus LFA and its will be on display at the Lexus at the 2009 Tokyo Motor and the prototype engine will be at the Yamaha Motor booth.

The designing concept

The objective of acoustic design was to utilize as a medium that can achieve a link between the driver and the To accomplish this goal, and Yamaha Motor decided to the design on the following two goals.

This approach was based on expertise in creating relationships performers and musical instruments to the perfomers the full enjoyment of an instrument.

When playing a instrument, performers hear the changes in volume, tone, and that they produce Hearing these subtle allows performers to make revisions as they play the For these performers, access to audio feedback is vital to the best possible performance.

In case, sensing the direct of the musical instrument is what the performers with the enjoyment of an instrument.

Figure 1: The important loop linking a “musical space, and performer” and “engine, and driver”

Feedback is equally important driving an automobile. In this feedback refers to how the vehicle to the driver’s actions. In a super car like the Lexus LFA, a high-grade engine sound changes with even a operation by the driver can contribute to the enjoyment of driving.

We believe sound is a valuable means of between the driver and vehicle. passing on high-grade engine to the driver makes it possible to the vehicle’s condition and instantly the next minute action is required.

Yamaha Motiv city car concept

This is how sound can be to establish and enhance an interactive between drivers and automobiles. Our was to make the experience of operating a sports car even more and enjoyable.

Features of the acoustic design

To this acoustic design, we the engine as the generator of sound and the as a medium for conveying sounds one place to another. We then up with an idea for how to achieve a interaction between drivers and and it was adopted.

The Lexus LFA is powered by a engine that was co-developed by Motor and has an even firing Only physical acoustic were utilized to give the a direct sensation of this characteristics. There is no electrical or sound processing.

As a result, that reach the driver are dynamic, and smooth.

Furthermore, this acoustic has two advantages. The first is the ability to down noise under driving conditions, such as in a The other advantage is an outstanding in engine sound during acceleration.

1.Acoustic design the engine as a sound generator

We and used the surge tank 1) as part of the intake system to the sound. The vibration mode of tank was controlled by optimizing rib configuration, and other aspects of its When accelerating at an engine of about 3,000rpm, the driver a powerful harmonic sound centered around 250Hz, is the primary component of combustion (note 2). At a high engine of about 6,000rpm, the harmonic structure is centered around This produces a sound is rich and smooth.

For even higher engine we further increased the number of frequencies to create a sound clearly reflects how the engine is climbing.

Yamaha Motiv city car concept
Yamaha Motiv city car concept
Yamaha Motiv city car concept
Yamaha Motiv city car concept
Yamaha Motiv city car concept
Yamaha Motiv city car concept
Yamaha Motiv city car concept
Yamaha Motiv city car concept
Yamaha Motiv city car concept

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