1. Advanced Vehicle Control Systems
S. Balachandran
Vice President

2. From Brake Controls to Vehicle Dynamic Controls
AGENDA
About WABCO India
Commercial vehicle brakes system trend
Introduction to ABS & advantages over conventional braking
Electronic Braking System (EBS)
Full Air Brake Controls with ABS/ESC vs. EBS/ESC
Electronically controlled air suspension
Modular Door Control Systems – MTS
Tire Pressure Monitoring - TPM
Automatic Manual Transmission – AMT
Driver assistance systems
From Brake Controls to Vehicle Dynamic Controls

3. WABCO INDIA LIMITED
Sundaram – Clayton Limited was established in 1962 as a joint venture with Clayton Dewandre UK ( Now WABCO Vehicle Control Systems)
The Brakes Division of Sundaram-Clayton Limited has now become a separate company, WABCO-TVS (INDIA) Limited. On 3rd Jun’09 WABCO raised its ownership position to 75% equity investment and balance to public
On 2nd Aug 2011, WABCO-TVS (INDIA) LIMITED was renamed as WABCO INDIA LIMITED
WABCO INDIA has three manufacturing sites (located at Chennai, Jamshedpur and Mahindra City)
… over 40 years of service to the Indian automotive industry

4. ABOUT WABCO INDIA LIMITED
MARKET LEADER in Indian Medium and Heavy Commercial Vehicle industry
Sales of Rs. 899 Cr in , 50% growth
Over 2,400 EMPLOYEES, 200 ENGINEERS
3 MANUFACTURING LOCATIONS in India
MAJORITY CONTROL BY WABCO in Jun 2009
listed on NSE / BSE with the stock symbol WABCOINDIA /
Listed in stock exchanges in India

5. WABCO INDIA JOURNEY A successful journey 5
New plant at Jamshedpur
New Plant at Mahindra city
ABS Introduction by OEMs
Focus on Exports
Products meeting global standards
F&S Super platinum
ABS
F&S Super platinum
Air dryer, Automatic brake adjustment and Load sensing valve
Products for Stallion vehicles (Army application)
TPM award
ACMA award
High pressure compressors
Deming prize
TPM Kick-off
Japan Quality
Medal
A successful journey 5

6. HISTORY OF WABCO IN INDIA / ASIA
Qingdao
(340)
Seoul,
Pyungtaek (90)
Jinan (280)
Shanghai
(90)
Tokyo, Kawagoe
(80)
Hong Kong
(3)
Chennai
(1,400)
Singapore
(7)
Melbourne (3)
>
JV w/ Sundaram
Clayton Ltd,
India
Technical
Licensing
in China
APAC
HQ in
Hong Kong
JV in
Jinan,
China
Factory in
Pyungtaek
Korea
APAC HQ
moved to
Shanghai
QD Factory
Official
Inauguration
Jamshedpur
Factory in
India
Mahindra WC
Factory in
India
WABCO
takes
majority
control 6

7. CUSTOMER VALUES
WABCO is working on global TECHNOLOGY trends relevant to our customers
We have a clear path to enhance VEHICLE EFFICIENCY and ENVIRONMENTAL SUSTAINABILITY by 20%
Our vision is to improve ADVANCED SAFETY and DRIVER EFFECTIVENESS, and reduce the number of commercial vehicle accidents by 50% by 2020
We are involved in developing PRODUCTS and FUNCTIONALITIES to better meet these needs

8. Truck/Bus-Specific Trends
BRINGING VALUE TO CUSTOMERS
Increasing
mobility
Availability
of natural
resources
Growing need for
environmental care
Growing demand for
safety and security
Shift of economic
power among
regions
Truck/Bus-Specific Trends
Fuel Efficiency
Stability control
Braking systems
control
Energy Recovery
ABS
Suspension control
Weight Reduction
ADAS 8 8 8

9. PRODUCT PORTFOLIO Vacuum products 2% Air Compressors 13%
Air Processing 12%
Conventional Brake Controls 21%
Brake Chambers & Actuators 22%
Anti-Lock Braking System (ABS) 7%
Vacuum products 2%
Repair kit sales 10%
Exports (Inter-company) 12%
Exports (Aftermarket) 1%
% Sales
sales : Rs 899 Cr

10. WABCO - The Supplier of Control Systems for Commercial Vehicles
Complete Air Brake System or
ABS / ASR
Air Dryer / APU
Air Compressor
Front Brakes
Rear Brakes
EBS with Stability
Control
Clutch
Servo
Suspension Controls
Pneumatic
Electronic
with / w/o Shock Absorber Control
Temperature Control
Gear Box Controls
Retarder Control
Central Board Computer
Reservoirs

11. Commercial Vehicles – Braking System Trend
Increasing vehicle speeds
30-80 kmph
1940
1950
1960
1970
1980
1990
2000
Fail-safe
Car –like feel
Stability
Single line air brake
Dual line air brake
Load Sensing Valve
Automatic Slack Adjuster
ABS/ASR
EBS
Varying load conditions
Adjusting lining wear
Varying road conditions
Braking Technology
2010
ESC
ACC
Focus on ADAS beyond 2011

12. Typical Dual Brake System layout
Hand brake
Spring Brake Acctuator
For Hand brake 12

13. Able to stop the vehicle by
System Function – Hand brake
Able to stop the vehicle by
Hand brake when both Service circuits failed.

14. Benefits of Hand brake system
Able to stop the vehicle by Hand brake when both Service circuits failed.
During vehicle parking Hand brake ensure the locking of the rear wheels
Driver can operate the vehicle when foot brake fail, by operating hand brake as service brake.

15.   For parking & emergency braking Spring Brake Chamber
Ensure the spring brake chambers in wind in condition
Spring Brake Chamber
Wind in condition
Wind off condition  

16. Reliable ABS Portfolio
ABS System
Reliable ABS Portfolio 16

17. ABS Schematic Layout – 4S/4M

18. ABS ADVANTAGE Air Brake with ABS Air Brake
3/31/2017
Air Brake with ABS
Air Brake
Sub-optimal stopping distances on dry/slippery roads
Wheel locking while panic braking or in slippery road conditions can lead to accidents.
Tyre life reduced due to wheel locking
Experienced driver for driving on extreme road conditions
Improved stopping distances especially in dry/slippery roads
Wheel locking avoided. An important safety
Criterion to prevent accidents.
Increase in tyre life. COST SAVING to the end customer.
System will assist less experienced driver on extreme road conditions
Demo on wheel locking
Demo Without ABS
Demo With ABS 18

19. Proportional Relay Valve
Electronic Braking System - EBS
Axle-modulator
back up valve
ABS solenoid valve
Proportional Relay Valve
EBS ECU
Brake
signal transmitter
WABCO EBS Components - 4S/4M

20. The electropneumatic circuit consists of
4S/4M for 4x2 Vehicles
The electropneumatic circuit consists of
(1) brake signal transmitter (BST) with 2 integrated
sensors and switches
(2) central electronic -
control
unit (central module CM)
(3) electro pneumatic proportional relay valve (PRV)
(4) axle modulator with integ
rated ECU
(5) two ABS solenoid valves
(6)
ESC
module
(7) steering wheel sensor
(8) electro pneumatic trailer control valve
(9) back up valve
(10) wheel speed sensor front axle
(11) wheel speed sensor driven axle

21. EBS provides advantages for all customer
Why EBS?
Advantages of EBS vs. ABS
Shorter brake distance
Shorter pneumatic pipes
Electro pneumatic brake control
Higher pressure in brake system
Pipe connections are electrically controlled
Installation advantages
Less pneumatic and electric connectors
No additional components if ESC is installed
Improved brake pedal feeling
Pedal feeling similar to Cars Deceleration control instead of brake pressure control
Better diagnosis
Self test
Fault memory
Simplified brake check
Cost benefit for the OEM and end user
Less lining wear
Less system cost
Less service cost
Functions due to parameter setting
New functions w/o additional valves
Hill Start Funtion
Brake Assist
Brake management
EBS provides advantages for all customer

22. Stability Controls – RSC & ESC

23. Roll Stability Control
Philosophy of RSC is to reduce vehicle speed there by preventing vehicle roll over
RSC controls the lateral acceleration
If the lateral acceleration exceeds a certain level RSC controls the engine torque including its retarder and if necessary activates the drive axle brakes through the ASR differential brake valve and activates the brakes of trailer additionally through RSC valve
Demo on RSC

24. ABS based Roll Stability Control ( RSC ) - Components
Accelerometer integrated in ABS ECU (or ESC Module)
ATC valve for drive axle braking
RSC valve for trailer braking

25. How does ESC work at critical vehicle yaw ?
Directional Stability Control
Identification of unstable driving conditions :
Over steering
Under steering
directional instability
ESC brake application
Reduction of engine torque to slow down vehicle
Selective braking of single wheels to compensate deviation from stable driving conditions
How does ESC work at critical vehicle yaw ?

26. ABS based ESC add. components
ESC components
Solenoid Valve for front axle braking
Pressure Sensor for driver brake demand
Steering Angle Sensor
ESC Module
ATC valve for drive axle braking
Valves for trailer braking
black/white
controlled
For ABS additional valves needed

27. EBS based ESC add. components
ESC components
Solenoid Valve for front axle braking
Pressure Sensor for driver brake demand
Steering Angle Sensor
ESC Module
ATC valve for drive axle braking
Valves for trailer braking X X X X X
Fragen was ca. die Kosten pro montierte Komponente sind.
black/white
controlled
Easy ESC extension with EBS

28. Electronically controlled air suspension ECAS

29. - Electronically Controlled Air Suspension -
ECAS
- Electronically Controlled Air Suspension -
ECAS consists of
Electronic Control Unit
Remote Control Unit
Height Sensors
Pressure Sensors
Solenoid Valve Blocks
Reasons for ECAS:
Simple installation / Few parts / Cost Reduction
Improvement of Conventional Air Suspension Functions
Safety Concept
Less air consumption
Kneeling down function
Control from driver’s seat

30. Air Suspension (ECAS) electronically controlled
Nominal level
Supply
height sensor
bellow
solenoid valve
ECU
ECU

31. MODULATOR DOOR CONTROL
SYSTEMS (MTS)

32. MODULATOR DOOR CONTROL SYSTEMS (MTS)
Purpose
The function of MTS is to actuate and monitor with identical devices up to five doors of different construction of inward pivot / outward pivot doors and pneumatic / electrically driven doors
MTS components
Electronics (for pneumatic or electrical doors)
Sensors for swinging doors
Door control valve
Door cylinder
Emergency valve with switch
Pressure switch

33. FEATURES OF MTS
Proven system >Doors controlled by MTS main pneumatic-functions in series application since 20 years
System focus on safety for passengers, drivers and workshop peoples
Further increase of safety by connection of additional equipment (sensitive edges, light barriers…) easily possible
One solenoid-valve to control opening and closing of the door including damping and the safety-function “powerless”.
Door system connected to the vehicle at the first door only optional by:
conventional wiring or
CAN - data bus (according ISO 11898)
Reduced wiring due to internal data bus between the door ECUs. It is possible to link up to 5 doors

34. Tire pressure Monitoring ( TPM)
The function of TPM is to monitor the tyre pressure
Method
Indirect monitoring by analyzing signals from the ABS wheel speed sensor
Small differences of tire circumference are accumulated by wheel module (sensor) and transmit to ECU through wireless which in turn display the Tyre pressure data on the display cluster located in the dash board.
Benefits
Maintaining the tyre pressure results in saving in fuel consumption

35. Components in the TPM system Simple System Structure
Wheel Modules
Data on
Integrated
Multi-function
Display
SAFETY -
Correct Tire Pressures
ECONOMY -
Less fuel consumption
Electronic Control Unit (ECU)
Simple System Structure

36. Automated Manual Transmission (AMT)

37. Different types of Transmission systems37

38. Standardization and Modularity to shorten time to market
WABCO OptiDrive system overview
Value to Customer
OptiDriveTM BENEFITS
Easily adaptable to existing trucks and transmissions
Lower development cost
Shorter time to market
Full functionality including drive software
Minimized space requirements at gearbox
Reliable design based on long experience
Development and Testing according to state-of-the-art specifications
Offering full system development
Description
Here are some specifics on two applications that will drive new sales for us -- Truck Automated Transmissions and Air Disc Brakes. Both of these are opportunities where we have a competitive advantage
Innovation Mitigates Price Pressure
Leaders Define the Product / System - Others Must Pay to Follow
Migration Path : Manual>>Clutch Servo>>Automated
Truck Automated Transmissions
There is a significant market opportunity here. 50% of the Heavy Trucks delivered in Europe will have automated transmissions by The US will follow after that repeating the pattern of ABS
We have partnerships with Volvo, DaimlerChrysler and ZF in Europe, and these will extend globally as familiarity with the technology increases. Volvo will include our technology on its flagship truck [FH12] – it’s called the “I-Shift” – i stands for intelligent
And, we are on track to deliver the sales projections we gave in February this year. In fact, if anything we may have been a little conservative.
Sales in 2003 were ~$ 70M, and we expect sales of ~ $155M in 2008
WABCO OptiDrive's high degree of modularity significantly reduces the development time required for application to transmission & vehicle platforms, enabling faster time to market for vehicle and transmission manufacturers
Standardization and Modularity to shorten time to market 38 38

39. WABCO AMT system overview
Shift Lever Unit
incl. TCU
Passive Speed Sensor
Active
Speed Sensor
Pneumatic Clutch Actuator
XY-Actuator
SYSTEM CONTENT 39 39 39

40. WABCO AMT system overview
SLU
XY-Actuator
Inductive Speed Sensor
Active Speed Sensor
PCA
SYSTEM CONTENT 40

41. EVOLUTION OF ACTIVE SAFETY
ABS
control
ESC
stabilize
anticipate
ADAS
Demo on ADAS
From controlling –to anticipating

42. Driver Assistance Systems Technology and Products
WABCO
Driver Assistance Systems Technology and Products
Headliner Cluster
Camera
Lane Departure Warning & Lane Keeping Support
support of long range sensor
Lane Departure Warning
Side Sensors
24 GHz Radar or ultrasonic
Blind spot detection
Long Range
77 GHz Radar or
Infrared Laser Sensor
ACC
Collision Warning
Collision Mitigation
Autonomous Emergency Braking

43. BENEFITS WORKING WITH WABCO
Experienced vehicle control & transmission automation specialist
Know-how across vehicle control systems
Capability to offer a complete system out of one hand
A more efficient and economic system development
A simplified and streamlined project management through local support
A product that is fully tested as a complete system
A product that is tailored to your requirements 43

44. PASSION