Marc OSAJDA, NXP Semiconductors

MEMS Sensors for automotive safety

AGENDA

An incredible opportunity

Vehicle Architecture (r)evolution

MEMS & Sensors in automotive applications

Connectivity Autonomy Electrification

Safe and Secure MobilitySEMICONDUCTOR CONTENT GROWS 3X

Global Mega Trends

An incredible Opportunity

+50$ Cellular 4/5G

+50$ e-Cockpit

+100$ Level 2

+400$ Level 3

+700$ Level 4 & 5

+350$ Hybrid

+700$ Full Electric

MILLION1.3

90% are caused by

HUMAN ERROR

OUT OF ALL ACCIDENTS GLOBALLY,

35km/h

50km/h

70km/h

HIT BY A VEHICLE

TRAVELING AT:

HIT BY A VEHICLE

TRAVELING AT:

HIT BY A VEHICLE

TRAVELING AT:

9 OUT OF 10 PEDESTRIANS SURVIVE*

5 OUT OF 10 PEDESTRIANS SURVIVE

ONLY 1 OUT OF 10 PEDESTRIANS SURVIVES

Source: Seattle’s Vision Zero Plan/Documents/Departments/beSuperSafe/VisionZeroPlan, ASIRT.ORG

Road traffic deaths occur every year

ENABLING SELF-DRIVING CARSBetter senses than the human driver.

Automation of driving decisions.

SENSE

THINK

ACT

The press is full of talk about

biggest brains, what about

best-in-class sensors?

Autonomous driving WITHOUT sensors

IS LIKE DRIVING BLINDFOLDED

The future of the industry

hinges on being able to

sense the environment in

an artefact-free way

This activates the right speed,

the right traction and the right

acceleration & movement for

every situation

What is Driving the Sensor Demand Today?

Level 1-2Sensors are added to the

vehicle to aid the driver:

Accelerometers, gyro, front

radar, blind spot, rear, front &

surround view cameras

Level 3-5Automated driving system performs

the entire dynamic driving task –

this requires fail operational safety.

Sensors help the vehicle learn

from the environment to drive

safely: Sensor fusion, distance

measurement, road sign

recognition, route planning and

mapping, precise positioning,

critical arbitration

MEMS Inertial Sensors help the

vehicle control its autonomous

trajectory and state of critical

elements such as the tires

(intelligent tires)

4 50 2 31

No

Automation

Full

Automation

High

Automation

Conditional

Automation

Partial

Automation

Driver

Assistance

AUTOMATED DRIVING SYSTEM

MONITORS DRIVING

ENVIRONMENT & INERTIAL

SENSOR THE VEHICLE

TRAJECTORY

HUMAN DRIVER MONITORS

DRIVING ENVIRONMENT.

SOME SENSORS CONTROL THE

VEHICULE TRAJECTORY

Bo

dy &

Com

fort

In-V

ehic

le

Experie

nce

Con

ne

ctivity

Dri

ve

r

Rep

lace

me

nt

Po

we

rtra

in &

Ve

hic

le

Dyn

am

ics

V2X

Broadcast Radio

Cellular

NFC

Smart Car Access

Radar

Camera

Lidar

Motion & Pressure

Speed

Ultrasonic

Smart Light

Access, Door Control

eCockpit

Amplifiers

Powertrain &

Vehicle DynamicsEngine

Transmission

Brake

Battery Cell Management

Steering

Airbag

Suspension

Infotainment

Fusion

WiFi, BT, GNSS,

TPMS

Powertrain

Domain

Controller

Connectivity

Domain

Controller

Body

Domain

Controller Motion

SENSE THINK ACT

NXP LEADS DOMAIN BASED

VEHICLE ARCHITECTURES

COMPLETE

SOLUTIONS FASTER TIME TO MARKET

FULL SCALABILITY

Connectivity

Driver Replacement

Powertrain & Vehicle Dynamics

Body & Comfort

In-Vehicle Experience

MEMS Experience

30+ years of Automotive

MEMS production4 billion devices shipped

1.5 billion in automotive applications

Broad product portfolioAccelerometer, Gyroscopes, Motion sensors

Magnetic speed and angular sensor

Absolute and differential pressure sensors

Tire Pressure Sensors

6th generation of Airbag Sensors

4th generation of Tire Pressure Sensors

MEMS Sensors in Automotive Applications Even Level 5 driving won’t be 100%

accident free – so passive safety will continue to be standard

equipment

Level 5 vehicles can still skid and drift

on slippery roads – electronic stability control will continue to be a

standard feature, the vehicle will also still need

feedback loop to control steering and braking

Level 5 vehicles will still need to know

the status of each critical component: monitoring of tire condition for example

Sophisticated RADAR & LIDAR will need high accuracy beam orientation &

stabilization when driving

Tire Monitoring

sensors

airbag

pressure satellite

Pedestrian protection

PSAT and/or low-g

Electric par brake

hill start control

angle measurement

Airbag sensors

Airbag Inertial

satellite sensor

Roll over

detection

Electronic Stability

Control sensors

In dash navigation

dead reckoning

Car alarm

motion detection

Vehicle movement

tracking unit 6DOF

Radar beam

orientation &

stabilization

Active Safety / Passive Safety / In vehicle experience / Security

Keyfob motion

detection

Security feature

Pressure Sensor Automotive Application Domains

Tire Pressure

Monitoring

Pedestrian Protection

Internal

Combustion

Engine

Side Crash Detection

>300 million pressure sensors for auto applications shipped

Why Tire Pressure Monitoring

Safety for everyone• TPMS Prevent roadside breakdown and risk of road congestion

• US tread act to prevent roll over accidents

• Regulation around the world (including China)

Cleaner world for everyone• TPMS allows optimum tire inflation and thus fuel

consumption and CO2 emission reduction

• Maximizes tire life

Intelligent tires:

A potential to be exploited• Necessary building block for automated driving

• Link tire information with chassis and ADAS system

• Provides accurate tire data to the driver

• Filling assistant app on smartphones

• Fleets & Truck: enables better tire management

Motion Sensor Automotive Application Domain

Inertial Satellite

Sensors

Airbag Sensors

Rollover ECU

Keyfob Security

Motion Detection1.2 Billion airbag MEMS sensors shipped

Major Tier-1’s using NXP motion sensors

Thief 1

Thief 2

Radio

Bridge

Motion Sensor in Key

Increasing Security and Battery Life in Keyless Entry

Drive-way attack

Passive Keyless Entry• Automatically unlocks the car when key in close vicinity

• Radio-bridge (thief) can makes car believe that key is in

close vicinity and car can be unlocked

Benefit of using a MEMS motion Sensor• When key if not in motion (at home) LF/RF interfaces can be disabled:

Relay attack impossible

• Reduce power consumption when key is not in use (deep sleep mode)

• Key is waking up when the sensor detects a movement

Conclusion

Entering new era of automated driving that requires

functional safety and security

The challenge is not only to master the brain of the car, but to

capture the environment around it

Need to have absolute certainty about the physical state of the car

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