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Advanced Vehicle Control Systems S. Balachandran Vice President.

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Presentation on theme: "Advanced Vehicle Control Systems S. Balachandran Vice President."— Presentation transcript:

1 Advanced Vehicle Control Systems S. Balachandran Vice President

2 Company proprietary & confidential 2 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 Company proprietary & confidential 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 3 rd Jun09 WABCO raised its ownership position to 75% equity investment and balance to public On 2 nd 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 Company proprietary & confidential 4 Sales of Rs. 899 Cr in , 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 / Listed in stock exchanges in India

5 Company proprietary & confidential 5 WABCO INDIA JOURNEY High pressure compressors Deming prize TPM Kick-off ABS Japan Quality Medal Air dryer, Automatic brake adjustment and Load sensing valve Products 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 Company proprietary & confidential 6 Melbourne (3) Shanghai (90) Qingdao (340) Jinan (280) Seoul, Pyungtaek (90) Tokyo, Kawagoe (80) Singapore (7) Hong Kong (3) Chennai (1,400) APAC HQ moved to Shanghai JV w/ Sundaram Clayton Ltd, India > APAC HQ in Hong Kong Technical Licensing in China JV in Jinan, China QD Factory Official Inauguration WABCO takes majority control Mahindra WC Factory in India Factory in Pyungtaek Korea Jamshedpur Factory in India HISTORY OF WABCO IN INDIA / ASIA

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

9 Company proprietary & confidential 9 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% % Sales sales : Rs 899 Cr

10 Company proprietary & confidential 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 Company proprietary & confidential 11 Increasing vehicle speeds kmph 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 Commercial Vehicles – BrakingSystem Trend Focus on ADAS beyond 2011

12 Company proprietary & confidential 12 Typical Dual Brake System layout Hand brake Spring Brake Acctuator For Hand brake

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

14 Company proprietary & confidential 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 Company proprietary & confidential 15 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

16 Company proprietary & confidential 16 ABS System Reliable ABS Portfolio

17 Company proprietary & confidential 17 ABS Schematic Layout – 4S/4M

18 Company proprietary & confidential 18 ABS ADVANTAGE 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 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 Company proprietary & confidential 19 Axle- modulator back up valve ABS solenoid valve Proportional Relay Valve EBS ECU Brake signal transmitter WABCO EBS Components - 4S/4M Electronic Braking System - EBS

20 Company proprietary & confidential 20 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 integrated 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 Company proprietary & confidential 21 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 connectors No additional components if ESC is installed Shorter brake distance Shorter pneumatic pipes Electro pneumatic brake control Higher pressure in brake system Pipe connections are electrically controlled Improved brake pedal feeling Pedal 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 user Less lining wear Less system cost Less service cost Functions due to parameter setting

22 Company proprietary & confidential 22 Stability Controls – RSC & ESC

23 Company proprietary & confidential 23 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 Company proprietary & confidential 24 ABS based Roll Stability Control ( RSC ) - Components RSC –Accelerometer integrated in ABS ECU (or ESC Module) –ATC valve for drive axle braking –RSC valve for trailer braking

25 Company proprietary & confidential 25 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 instabilityESC brake application Identification of unstable driving conditions :

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

27 Company proprietary & confidential 27 Solenoid Valve for front axle braking Solenoid Valve for front axle braking Pressure Sensor for driver brake demand Pressure Sensor for driver brake demand Steering Angle Sensor Steering Angle Sensor ESC Module ESC Module ATC valve for drive axle braking ATC valve for drive axle braking Valves for trailer braking Valves for trailer braking Easy ESC extension with EBS ESC components black/whitecontrolled X X X X X EBS based ESC add. components

28 Company proprietary & confidential 28 Electronically controlled air suspension ECAS

29 Company proprietary & confidential 29 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 drivers 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 drivers seat

30 Company proprietary & confidential 30 Air Suspension (ECAS) electronically controlled Nominal level Supply height sensor bellow solenoid valve ECU

31 Company proprietary & confidential 31 MODULATOR DOOR CONTROL SYSTEMS (MTS)

32 Company proprietary & confidential 32 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 CONTROL SYSTEMS (MTS)

33 Company proprietary & confidential 33 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 Company proprietary & confidential 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 Company proprietary & confidential 35 Components in the TPM system Simple System Structure SAFETY - Correct Tire Pressures ECONOMY - Less fuel consumption Electronic Control Unit (ECU) Wheel Modules Data on Integrated Multi-function Display

36 Company proprietary & confidential 36 Automated Manual Transmission (AMT)

37 Company proprietary & confidential 37 TRANSMISSION SYSTEMS Different types of Transmission systems

38 Company proprietary & confidential 38 Standardization and Modularity to shorten time to market OptiDrive TM 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 Company proprietary & confidential 39 SYSTEM CONTENT Shift Lever Unit incl. TCU Passive Speed Sensor Active Speed Sensor Pneumatic Clutch Actuator XY-Actuator WABCO AMT system overview

40 Company proprietary & confidential 40 PCA XY-Actuator Inductive Speed Sensor Active Speed Sensor SLU WABCO AMT system overview SYSTEM CONTENT

41 Company proprietary & confidential 41 EVOLUTION OF ACTIVE SAFETY From controlling –to anticipating ABS ESC ADAS control stabilize anticipate Demo on ADAS

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

43 Company proprietary & confidential 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

44 Company proprietary & confidential 44 PASSION

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