Forest Air

2

Dynamic Performance

Life on Board

“Life on Board” is important to support “Trusted Driving Pleasure”.

Trusted Driving Pleasure

Nissan Group’s Core Technology Values：：：：

Four Strategic Technology Fields

Quality/Cost

Environment

Safety

3

Study human responses scientifically to raise three values

“Premium-feeling" interior

Well-made Interior QualityWell-made Interior Quality

Analyzing human touch sense mechanism

“Pleasant” air

Comfort CabinComfort Cabin

Developed the model of human body mechanism through measuring comfort feel by human senses

“Easy-to-use” controlsEvaluating of ease of switch operation

Smart Driving Cockpit Smart Driving Cockpit

4

Customer Value of Forest Air

“Clean and refreshing air”

Nissan has decided to study on the atmosphere of the "forest," through consideration of pleasant effect of air on people.

The air feels good（comfortable air touch）

Refreshing to both body and mind

Nothing unpleasant

（Clean air）

5

Why do people feel good about forest air ?

“Human beings are born in the forest, and had been living in it.”

For 5 million years, human being has been adopting in the forest.It is quite recent that people started to live in the artificialenvironment.

That stress of modern life are reduced though interactions with nature, such as “returning” to the original forest environment.

People are stressed physically and mentally by this quick change.

6

Cabin Air Quality : Create comfortable air in the cabin

When driving, a car’s interior is often filled with stress caused by surrounding pollutants and the use of artificial materials.

“The careful control of cabin air quality can help reduce tension by creating a more natural feeling environment.”

The goal is to make the air closer to natural environment, by reducing cause of stress and controlling the cabin air quality.

7

New technologies to evolve cabin air quality

( Prevent or remove odors )

d) Eliminate odors by automatic ventilation control

e) Use ions to reduce odors clinging to the interior

( High comfort using air management )

c) Humidity control

a) Breezy Air control

b) Aroma with relaxing effects

These functions are integrated into single package "Forest Air" and will be featured in the next-generation Infiniti M.

Clean air

Gentle breezeAromaHumidity

f) Grape-seed polyphenol to deactivate allergens



Nothing unpleasant（Clean air）

8

� Feel like natural breeze by fluctuated air flow.� Control randomly modulated air flow from upper vent and front vent outlets

0

0.5

0 100 200 300 (sec)

“Breezy Air”

W/O Control

Frequency

W/O Control

Natural breeze

Breezy Control

a) Breezy Air

Upper Vent

Front Vent

Wind velocity (m/sec) on driver’s face

Power spectrum

1/f modulation

- Duplicate “1/f modulation”

- Optimized air flow control, whose pattern is adjusted according to solar insolation, outside temp.

Feature of technology:

9

Leaf scent (leaf alcohol):The ingredient which is included in the leaf of many plants. It is said to effective in calming, and a fatigue reduction effect is studied.

Fragrant wood (Borneol): The ingredient which is included in a borneol tree (Kapur) growing wild in tropical forest. It is said to be effective in calming, and improve concentration.

� Relaxation by forest air components� Aroma diffuser provide leaf scent and fragrant wood with ventilation air

Air

Aroma

Aroma diffuser

-Providing two components alternatively & intermittently is effective.

b) Aroma

10

� Keep comfortable humidity (no over-dry during air conditioned), while preventing fogging up windows.

� Regulate air conditioner dehumidification by sensing interior humidity.

c) Humidity control

0

30

30 (Min.)

60

30

W/Humidity controlW/Humidity control

10

20

10 20

A/C ONA/C ON

A/C OFFA/C OFF

Range of comfortable humidity

Window shield Temp sensor

Humidity sensor

Air Temp sensor


- Control both humidity and foggingup in all driving situations.

- Precise humidity sensing (adjusted

by solar insolation, outside temp.,

and vehicle speed) is the key

Cabin

temp

Humidity (%)

Standard A/C

11

� Reduce bad odor by optimized ventilation� Control intake port (open/close) automatically by sensing

inside/outside odor

d) Automatic intake control

Comfortable level in office

0 10 20 30 (min)

21.0

20.9

20.8

20.7

18.0

Healthy-risk level

competitorFull REC

New Infiniti MNew Infiniti M

Only exhaust gas sensorOnly exhaust gas sensor


- Active control of ventilation to keep cabin CO2 low, while preventing inflow of bad odor

- High sensitivity and wide range

of odor sensor is the key

O2 density（%)

exhaust gas sensor Cabin odor sensor at knee height

Interception

Ventilation

External odor/

12

� Reduce adhered odor on the interior trim.� Supply high density ion in ventilation air for anti-bacterial

deodorization

-Not only the deodoring performance (fig. on right), but also sterilizing performance has improved -- braking down or deactivating bacteria, virus, and allergens including tics

Ion generator

NewNew

e) New Plasmacluster

4

3

2

1

Odor substances are destroyed by OH radicals which

are produced from the ION

Deodorization

From driver side vent


Tobaccoodor

Sweatodor

Food odor

Odor intensity Smell

easily

Hardlydetect

Smellslightly

Nosmell

w/o Ion

Current

13

� Reduce allergen� Inactivating allergen by filter that uses fiber impregnated with natural grape seed polyphenol

f) Grape seed polyphenol filter

filter in HVAC

allergen

Inactivation

Cedar pollen0

20

40

60

80

100

Dust mite

competitor

Grape seed polyphenol

Grape seed polyphenol

w/o Filter

Remaining

allergen

amount（％）

Polyphenol traps the allergen and reduces their action through contact at a high number of reaction points

- The filter reduce the effect of cedar pollen allergens by 88percent, representing an improvement about five times higher than monomelic polyphenol such as catechin


14

Proving relaxing effect

The state in which the person calms down from external conditions or the consequences of what he or she has done and achieves mental acuity, resulting in good work.

For example, the state of a person sitting for calligraphy or a tea ceremony

Prof. ShinoharaTokyo University of Science, SUWA

State of relaxation

15

� The research showed that it helps create such state of alert andfocused, yet with tension relieved.

Aroma

Breezy Air

It was inspected by a cooperation study with Tokyo University of Science, SUWA

Proving relaxing effect

0 10 15 (min)

Brain relax index

5Brain relax index

0 1 2 3 4

W/O Control

Breezy Air

Relax

Stress

Stress

(min)

16

Raising Cabin air quality

( Prevent and remove odors )

d) Eliminate odors by automatic ventilation control

e) Use ions to reduce odors clinging to the interior

( High comfort using air management )

c) Humidity control

a) Breezy Air control

b) Aroma with relaxing effects

Clean air

Gentle breezeAromaHumidity

f) Grape-seed polyphenol to deactivate allergens



Nothing unpleasant（Clean air）

Infiniti will continue developing air conditioning system improving cabin air quality.

Automotive

Forest Air