advanced vehicle control systems s. balachandran vice president
Post on 11-Dec-2015
246 Views
Preview:
TRANSCRIPT
2
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
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
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
WABCO INDIA LIMITEDSundaram – 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
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
Sales of Rs. 899 Cr in 2010-11, 50% growth
MARKET LEADER in Indian Medium and Heavy Commercial Vehicle industry
Over 2,400 EMPLOYEES, 200 ENGINEERS
MAJORITY CONTROL BY WABCO in Jun 2009
ABOUT WABCO INDIA LIMITED
3 MANUFACTURING LOCATIONS in India
listed on NSE / BSE with the stock symbol WABCOINDIA / 533023
Listed in stock exchanges in India
5
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
WABCO INDIA JOURNEY
9000
0
2500
5000
7500
10000
90-9
1
91-9
2
92-9
3
93-9
4
94-9
5
95-9
6
96-9
7
97-9
8
98-9
9
99-0
0
00-0
1
01-
02
02-
03
03-
04
04-
05
05-
06
06-
07
07-0
8
08-
09
09-
10
10-
11
Rs.
in M
illio
n
High pressure compressors
Deming prize
TPM Kick-off
ABS
Japan QualityMedal
Air dryer, Automatic brake adjustment and Load sensing valveProducts for
Stallion vehicles (Army application) ACMA award
F&S Super platinum
Products meeting global standards
• New plant at Jamshedpur• New Plant at Mahindra city• ABS Introduction by OEMs• Focus on Exports
TPM award
A successful journey
F&S Super platinum
6
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
Melbourne (3)
Shanghai(90)
Qingdao(340)Jinan
(280)
Seoul, Pyungtaek (90)
Tokyo, Kawagoe(80)
Singapore(7)
Hong Kong(3)
Chennai(1,400)
1977 1986 1990 1996 2001 2005 2006 2007 2008 2009
APAC HQmoved to Shanghai
JV w/ SundaramClayton Ltd,India
>
APAC HQ in Hong Kong
Technical Licensingin China
JV in Jinan, China
QD FactoryOfficial Inauguration
WABCO takes majoritycontrol
Mahindra WCFactory inIndia
Factory in Pyungtaek Korea
JamshedpurFactory inIndia
HISTORY OF WABCO IN INDIA / ASIA
7
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
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
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
Shift of economic power among
regions
Increasingmobility
Growing demand forsafety and security
Growing need for environmental care
Availability of natural resources
Truck/Bus-Specific Trends
ABScontrol
Fuel Efficiency
Energy Recovery
Weight Reduction
Stability control
Braking systems
Suspension control
ADAS
BRINGING VALUE TO CUSTOMERS
9
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
PRODUCT PORTFOLIO
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%
% 2010-11 Sales
2010-11 sales : Rs 899 Cr
10
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
WABCO - - The Supplier of Control Systems for Commercial Vehicles
Complete Air Brake System
orABS / ASR
Air Dryer / APU
Air Compressor
Front Brakes
Rear Brakes
EBS with Stability Control
ClutchServo
Suspension Controls• Pneumatic• Electronic
• with / w/o Shock Absorber Control
Temperature Control
Gear Box Controls
Retarder Control
Central Board
Computer
Reservoirs
11
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
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
Bra
king
Tec
hnol
ogy
2010
ESC
ACC
Commercial Vehicles – BrakingCommercial Vehicles – Braking System TrendSystem Trend
Focus on ADAS beyond 2011
12
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
Typical Dual Brake System layout
Hand brake
Spring Brake Acctuator For Hand brake
13
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
System Function – Hand brake
Able to stop the vehicle by Hand brake when both Service circuits failed.
14
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
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
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
Spring Brake Chamber
Wind in condition
Spring Brake Chamber
Wind off condition
Ensure the spring brake chambers in wind in condition
For parking & emergency braking
18
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
ABS ADVANTAGE
Air BrakeAir 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
Air Brake with ABS
Air Brake with ABS
• 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 With ABS
Demo Without ABS
19
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
Axle-modulator
back up valve
ABS solenoid
valve
Proportional Relay Valve
EBS ECUBrake
signal transmitter
WABCO EBS Components - 4S/4M
Electronic Braking System - EBS
20
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
2S / 2M
2S / 2M
SAS
CA
B
446 130 XXX 0
IIII II IIII IIIEPB 4S /4M
Optional
Optional / ESC
Optional / ESC
2
6
6
38
11
11
10 5
9
12
12
47
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
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
Why EBS?
Advantages of EBS vs. ABS
Better diagnosis
Self test
Fault memory
Simplified brake check
EBS provides advantages for all customer
Installation advantages Less pneumatic and electric connectorsNo additional components if ESC is installed
Shorter brake distanceShorter pneumatic pipesElectro pneumatic brake controlHigher pressure in brake systemPipe connections are electrically controlled
Improved brake pedal feelingPedal feeling similar to Cars Deceleration control instead of brake pressure control
New functions w/o additional valves
Hill Start Funtion
Brake Assist
Brake management
Cost benefit for the OEM and end userLess lining wearLess system costLess service costFunctions due to parameter setting
23
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
Roll Stability Control
Philosophy of RSC is to reduce vehicle speed there by preventing vehicle roll over
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
RSC controls the lateral acceleration
Demo on RSC
24
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
ABS based Roll Stability Control ( RSC ) - ComponentsABS based Roll Stability Control ( RSC ) - Components
RSC– Accelerometer
integrated in ABS ECU (or ESC Module)
– ATC valve for drive axlebraking
– RSC valvefor trailerbraking
25
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
How does ESC work at critical vehicle yaw ?
Directional Stability Control
Over steering Under steering
Reduction of engine torque to slow down vehicle
Selective braking of single wheels to compensate deviation from stable driving conditions
directional instability ESC brake application
Identification of unstable driving conditions :
26
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
ABS based ESC add. components
• Solenoid Valve for Solenoid Valve for front axle brakingfront axle braking
• Pressure Sensor Pressure Sensor for driver brakefor driver brakedemand demand
• Steering AngleSteering AngleSensorSensor
• ESC ModuleESC Module
• ATC valve ATC valve for drive axlefor drive axlebrakingbraking
• ValvesValvesfor trailerfor trailerbrakingbraking
For ABS additional valves needed
ESC componentsESC components
black/whiteblack/white controlledcontrolled
27
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
• Solenoid Valve for Solenoid Valve for front axle brakingfront axle braking
• Pressure Sensor Pressure Sensor for driver brakefor driver brakedemand demand
• Steering AngleSteering AngleSensorSensor
• ESC ModuleESC Module
• ATC valve ATC valve for drive axlefor drive axlebrakingbraking
• ValvesValvesfor trailerfor trailerbrakingbraking
Easy ESC extension with EBS
ESC componentsESC components
black/whiteblack/white controlledcontrolled
X
X X
XX
EBS based ESC add. components
29
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
ECAS- Electronically Controlled Air Suspension -
ECAS consists of– Electronic Control Unit
– Remote Control Unit
– Height Sensors
– Pressure Sensors
– Solenoid Valve Blocks
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
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
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
Air Suspension (ECAS) electronically controlled
No
min
al l
evel
Supply
height sensor
bellow
solenoid valve
ECU
ECU
32
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
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
MODULATOR DOOR CONTROLSYSTEMS (MTS)
33
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
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
FEATURES OF MTS
34
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
Tire pressure Monitoring ( TPM) 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
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
Components in the TPM system Components in the TPM system
Simple System Structure
SAFETY - Correct Tire Pressures
ECONOMY -Less fuel consumption
Electronic Control Unit (ECU)
Wheel Modules
Data onIntegrated
Multi-functionDisplay
37
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
37
TRANSMISSION SYSTEMS
Different types of Transmission systems
38
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
38Standardization and Modularity to shorten time to market
Standardization and Modularity to shorten time to market
WABCO OptiDriveTM
GENERAL AMT BENEFITS
• Fuel saving up to 3%
• Maintenance cost savings
• Safer, improved gearshift operation
• Increase driver attention on road traffic
• Lower installation cost
• Reduced weight
SPECIFIC OptiDriveTM BENEFITS
• Easily adaptable to existing trucks and transmissions
• 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
Our Passion for your Vehicle Efficiency
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
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
Description
Value to Customer
WABCO OptiDrive system overview
39
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
39SYSTEM CONTENT
Shift Lever Unitincl. TCU
Passive Speed Sensor
Active Speed SensorPneumatic Clutch
Actuator
1:1
XY-Actuator
1:1
WABCO AMT system overview
40
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
40
PCA
XY-Actuator
Inductive Speed Sensor
Active Speed Sensor
SLU
WABCO AMT system overview
SYSTEM CONTENT
41
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
EVOLUTION OF ACTIVE SAFETY
From controlling –to anticipating
ABS
ESC
ADAS
control
stabilize
anticipate
Demo on ADAS
42
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
Driver Assistance Systems Technology and Driver Assistance Systems Technology and ProductsProducts
Headliner ClusterCamera• Lane Departure
Warning & Lane Keeping Support
• support of long range sensor
Long Range77 GHz Radar orInfrared Laser Sensor ACC Collision Warning Collision Mitigation Autonomous Emergency Braking
Side Sensors24 GHz Radar orultrasonic Blind spot detection
Lane Departure Warning
43
Com
pan
y p
ropr
ieta
ry &
co
nfid
entia
l
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
top related