automated driving technologies · 2017-10-21 · • advanced materials technology and expertise...

1 murata.com Copyright © Murata Manufacturing Co., Ltd. All rights reserved.

26 November 2014

1 Copyright © Murata Manufacturing Co., Ltd. All rights reserved.

Automated Driving

Technologies

Tommi Vilenius

Murata China Investment

International Automotive Congress 2014

Shanghai China December 9, 2014

本文档来自2014国际汽车技术年会未经允许不得转载


Content

Sensing and Communication Technologies

for Automated Driving

Vehicle motion and positioning

Driver condition monitoring

Environment/background infrastructure

Murata in Brief and Conclusion



Content









MR

Sensor

Ultrasonic

Sensor

Trimmer

Cap./Pot.

Thermistor

Rotary Position

Sensor

Combined

Sensor and

Gyroscope Inclinometer

Shock

detection

Acceleration

detection

Angular

velocity

detection Rotary

position

meter

Infrared rays

detection

Temperature

detection

Position

meter

Magnetic

detection

Piezoelectric

Magneto-

resistive

Distance

meter

Semicon-

ductive

Carbon-resistive

Angle

detection

Over current

detection

Inclination

detection Pressure

detection

Si

Acceleration

Sensor

Gyro Sensor

Rotary

Sensor

Magnetic

Switch

Functional Materials and Sensors from Murata Pyroelectric

Sensor



Parking Assist System

Application for Ultrasonic sensors

Detection area

High performance Parking

Sensors are essential for the

Valet Parking solution, which

might be the first high volume

automated driving application.

Number of sensors to be

increased. 本文档来自2014国际汽车技术年会未经允许不得转载


6

Development of Longer distance

Ultrasonic Sensor for AD

Target detection

range for longer

distance sensor:

increase up to 8 m

Targeted system

- Auto-parking system

- Emergency brake system

- Blind spot detection

Evolution with Ultrasonic technologies in Automotive market

PAS

<Comfort>

ADAS, Intelligent PAS

<Safety>

AD Automated Driving

ADAS Advanced Driver Assistance Systems

PAS Parking Assist System


7 Copyright © Murata Manufacturing Co., Ltd. All rights reserved. Confidential

5m

10m

15m

100m

5m 2m

Wide range

Ultrasonic

sensor

Cam

era

or

Millim

ete

r

wave /

Laser

Rad

ar

- Murata Ultrasonic Advantage Offering

Available for very short distance

detection (10 cm -) at lower speed

(less than 15 kmph)

Wider area coverage around the car

Easy to use – small, light & low cost

Wide range

Ultrasonic

sensor

Sensor Fusion Concept:

Ultrasonic and Camera

Murata target



- Existing system is only for protection.

- Next could be pre-sensing and protection for reducing injury

with combined sensors.

- EuroNCAP requires pedestrian protection for OEM from 2016

- Murata is proposing Ultrasonic combined with Accelerometer

(or Pressure sensor) integrated into the same unit.

- Customers benefits are space, wiring and system cost savings

Ultrasonic Sensor

(Object detection)

Accelerometer or Pressure

Sensor (Impact detection)

+

Integration of Piezo Ceramics and MEMS Technology

Possible Sensor Fusion Concept: Integration of

Parking Sensor and Pedestrian Detection/Protection

EuroNCAP European New Car Assessment Program

OEM Original Equipment Manufacturer



Inertial and Position Sensors in Use

Roll gyro axis

ESC, VSC

RollOver and Suspension Navigation

Electronic Parking Brake

Hill Start Assistance

Airbag

EPB Electric Parking Brake

ESC Electronic Stability Control

HAS Hill Start Assistance

VSC Vehicle Stability Control

X-axis: longitudinal / roll

Y-axis: lateral / pitch

Z-axis: vertical / yaw



Measurement Ranges of Inertial Sensors

System Parameter Range Direction*

ESC/ABS Acceleration 1-2g Lateral/

Longitudinal

ESC/ABS Angular Rate 125-300º/s Yaw

HSA/EPB Inclinometer <1g (1-30deg) Longitudinal

Suspension Acceleration 1-12g Vertical

Suspension Angular Rate 125º/s Pitch

RollOver Acceleration 1-3g Vertical

RollOver Angular Rate 125º/s Roll

Navigation Angular Rate 300º/s

Yaw

Airbag Acceleration 35-600g Lateral/

Longitudinal

*Direction is depending on PCB mounting position.

ABS Antilock Braking System

EPB Electric Parking Brake


HAS Hill Start Assistance

PCB Printed Circuit Board

VSC Vehicle Stability Control

X-axis: longitudinal / roll

Y-axis: lateral / pitch

Z-axis: vertical / yaw



System Solutions

• Traditionally all systems have their own sensors

– Total responsibility (Tier1 or OEM internal)

– Safety, speed, data availability

• Recent development towards Sensor Fusion

– Special sensor units like sensor cluster in ESC

– Integration directly on ECUs (ESC ECU or Airbag ECU)

– Integration into the "Global Chassis Unit"

Lower cost

Smaller size

Multiple use

Challenges in functional safety and system architecture

Opportunities to sensor integration

ECU Electronic Control Unit


OEM Original Equipment Manufacturer



0 %

10 %

20 %

30 %

40 %

50 %

60 %

70 %

80 %

90 %

100 %

2012 2013 2014 2015 2016 2017 2018 2019

Global Chassis Controller

Airbag Integration

HECU Integration

Cluster

ESC Integration Trends Volume-%

1 possible

Market scenario

Total ESC volume 35Mpcs 45Mpcs 48Mpcs 52Mpcs 56Mpcs 58Mpcs 60Mpcs



Additional Inertial Sensor Requirements for AD

• Integration of additional axis

– Third axis for angular rate (pitch)

• Additional measurement ranges

– Angular rate (yaw) down to 2°/s

• Gives good accuracy up to 30 km/h

– Acceleration performance 25 mg

• Means less than 2 degree in inclination

These are very challenging requirements to the current automotive

sensors, but not impossible.

Target to measure position with a lateral accuracy less than 3 cm

together with other sensors and real time reference

AD Automated Driving



Content









Driver Condition Monitoring

• It is estimated that drowsiness is a major cause of over 6,000 of

serious and fatal accidents in Europe annually.*

• Simple methods by analyzing the steering pattern or just by

calculating the time of continuous driving are already in use.

• More precise methods to detect drowsiness, overall condition of the

driver (incl. alcohol) are needed and are under development by

several potential suppliers

– The use of biological signals is considered in order to aim the

state detection with high accuracy. e.g. heart rate, pulse, brain

waves, skin, muscle, body temperature

– Measuring air and breath -> e.g. CO2, Alcohol

• Reliable biological data can be used for health control and even for

emergency call.

* Source: Strategy Analytics



Driver Condition Monitoring based on Murata MEMS

• Heartbeat measurement in use by Volvo

– High performance accelerometer can detect

based on the heartbeat if there is a human being

inside the car, when the doors are locked

– This is an important feature to alarm if for

example child was left in the car or if somebody

is hiding for any reason inside the car

Does not work when driving!

• Under development at Murata

– Heartbeat monitoring with pressure sensors and

accelerometers attached to the seat

– Blood pressure measurement with pressure

sensors (see next page)

– Air measurement based on optical sensing and

fabry-perot spectrometer (research phase)

Drowsiness

detection

Acceleration

Pressure



Content









Environment/Background

• High accuracy requirement in C2C

• In C2C/C2X communication the positioning accuracy of GPS is

several meters and success rate is about 96%. It can realize only

warning to the drivers.

• Further improvement in accuracy is required in order to perform the

operation control (< 10 centimeter).

Warning at intersection Emergency vehicle warning Warning of road works Warning lights on

C2C Car to Car Communication

C2X Car to X Communication (connected Cars)

GPS Global Positioning System



#1 Market Share

BT, WiFi Connectivity Module Market Share



Connectivity Solution for C2X Connected Car

Connected Car

• Murata Experience of Connectivity between Consumer

Electronics and Car Infotainment

• Murata contributes the connected cars by

Communication and Sensing technology

C2X module



Antenna Design and Evaluation

High Density and High Quality Manufacturing

Small and High Performance Components

Linked Technology

Smallest Package Relationship with

IC vendor

High Frequency Circuit Design and Evaluation

01005 inch component

in red

High Quality Mechanical and Thermal Design

Stress analysis

Coplanarity

Murata Connectivity Module Technology of Designing and Manufacturing



Tier1 Audio/Navigation

Manufacturers

Murata has supplied more than 20Mpcs connectivity modules

for automotive market over 9years.

Software/Platform

Manufacturers

End OEM Customers

Murata Business Performance - WLAN/BT Connectivity Module for Automotive -



Content









Facts & Figures

Business Worldwide leaders in the design, manufacture and supply of

electronic components and solutions.

Innovators in Electronics.

Strengths • Advanced materials technology and expertise

• Broad product portfolio

• Extensive global manufacturing and sales network

Key Figures • Turnover 846,716 million JPY* (about 6,0 billion €)

• Employees 48,288*

• Number of subsidiaries 101* ( 30 in Japan, 71 overseas)

• Established in 1944

*as of April 30, 2014

*Murata Manufacturing Co., Ltd. Is not included in the number of subsidiaries



Business Fields

• Smartphones

• Mobile router

• Safety systems

• Electric cars

• Infotainment

• Laptops

• Tablets

• Printers

• Flat-screen TVs

• Refrigerators

• Digital Still Cameras

• Air-con

• Medical devices

• Lifelog

• HEMS

• BEMS

• Smart meters

Innovative electronics solutions

• from core electronics for

mobile phones, audiovisual,

home appliances and

computers,

• to new applications in

automotive, healthcare, energy

and environment.

Increasing safety, quality of life and efficiency

MOBILE PHONES

AV & HOME APPLIANCES AUTOMOTIVE

HEALTHCARE & MEDICAL ENERGY & ENVIRONMENT

PCs & PERIPHERALS



Product Line-Up

SENSORS

INDUCTORS (COILS)

FILTERS

THERMISTORS POWER SUPPLIES

RESISTORS

RF COMPONENTS &

MODULES

SOUND COMPONENTS

NOISE SUPPRESSION

PRODUCTS / EMI

SUPPRESSION FILTERS

TIMING DEVICE

MICROMECHATRONICS

CAPACITORS

EMI Electromagnetic Interference

RF Radio Frequency



Further Products and Technologies (Timing Devices, DCDC, EMI and others)

DCDC Converter Timing Devices

(Crystal Resonator)

EMI Common Mode Coil

for CAN/Ethernet

- Total Solutions for Existing and New Applications - One Stop Solutions with Murata Competitive Products

Thermoelectric generator

C2X module



Conclusion

Automated Driving needs better performance of existing sensors

Higher sensitivity

Better total accuracy

Combination with wireless connectivity

Multiple sensors are needed as well

Functional safety aspect

More accurate positioning (e.g. ultrasonic sensors)

Sensor Fusion of current sensors and new sensors is needed

Cost

Space constraint

Murata is working on several new concepts and is interested in

co-operation to develop new solutions for Automated Driving


automated driving technologies · 2017-10-21 · • advanced materials technology and expertise...

Documents