Evolution in vehicle communication Björn Villing VOLVO 3P

Transcription

1 Evolution in vehicle communication Björn Villing

2 Evolution in vehicle communication VOLVO, short presentation Increased functionallity in vehciles Functionallity in todays vehicle Communication in vehicle Future trucks Challenges of today s, tomorrow s E/E development Telematics Production Summary

3

4 Mack Trucks Business Areas Renault Trucks Volvo Trucks Buses Trucks Volvo Aero Construction Equipment Volvo Penta Financial Services

5 Electronic Features- Challenge EMS ABS Transmission Control ESP ACC BbW XbW

6 Why communication in vehicle? Information shareing Diagnostics Distributed functions SW Update More...

7 Information shareing Drivers demand sent from vehicle ECU. Engine ECU Transmission ECU Vehicle ECU

8 Active safety - to avoid accidents Disc brakes, ABS, Electronic brake systems Electronic Stabilising Programme etc. Passive safety - if. Front Underrun Protection Airbag etc.

9 Parts Planner VDA Evolution in Vehicle Communication App.15 Central systems Diagnostics Network Baldo IBIS CVSP VCADS Pro TDM

10 What do we have today? Functionality Powertrain Control Safety systems Diagnostics More...

11 I-SHIFT - GEARSHIFTING APPLICATION An Example of the engine control during the shift sequence 2 Transmission controls engine speed when shifting. 1 Drivers demand sent from gear lever to transmission. Engine ECU 3 Engine changes speed, send info back to transmission Transmission ECU 4 Transmission shifts gear, shift ready Gear lever ECU

12 CHASSIS ELECTRONICS Electronic Braking System Electronic foot brake pedal Computer calculates optimum brake pressures Network communication to pressure actuators at each wheel Each actuator contains computer for calculation of ABS regulation This gives Shorter stopping distance, typically 2.5m shorter at 90 km/h Improved stability in combinations Longer and more accurate service intervalls Superior brake feeling Retarder integration First step to pure brake by wire Discbrake

13 SAFETY SYSTEMS Electronic Stability Program (ESP) By measuring the drivers input steering angle throttle brake pedal and comparing it with the measured vehicle behavior lateral acceleration yaw-rate wheel speed ESP brakes the wheels individually, reduces engine torque and limits retarder torque To improve steerability and controllability, avoid jack-knifes and reduce the danger of roll-over

14 DIAGNOSTICS On-board diagnostic With the instrument cluster Instrument cluster The status of the fault i.e Alarm, warning or information will be displayed. Fast and correct decisions Detailed information about each problem Off-board diagnostic With VCADS pro Detailed information about each problem Specific test can be performed on each system All systems globally have the same way of setting and reporting problems. Detailed information Fast trouble shooting VCADS pro

15 REAR VIEW CAMERA Possible to mount up to three cameras Higher pedestrian safety through around the vehicle - visibility

16 REAR AXLE STEERING Electronically controlled steering for tag and pusher Advanced steering adaptation Reduce complex hydraulically circuitry Reduce weight Reduced tire wear Increased maneuverability First step towards steer by wire Steered axle

17 Communication in vehicle SAE J1708 /J1587 SAE J1939

18 SAE J1708 idle start bit data stop bit idle byte MID DATA... CRC message RS485 Pair twinned 9600 bps MID (Message Identification Character) DATA CRC, checksum, 2~[MID+SUM(DATA)]

19 SAE J1587 Application Layer Presentation Layer Session Layer Transport Layer Network Layer Data Link Layer Physical Layer J1587 null J1587 J1708 Shall Shall be be used used with with SAE SAE J1708 J1708 Specify Specify Vehicle Vehicle Application Application Layer Layer Data Data link link layer layer Diagnostics Diagnostics First First specification specification controller controller

20 J1939 Background Market pull (traditional) in US for option to select Truck components from different vendors For E/E systems in trucks the answer was the standardised SAE J1939 protocol, backed up by a long list of manufacturers of trucks, harvest machines etc. Heavily supported Major national and international vehicle manufacturers Used in North American, European & Asian vehicles Major global component manufacturers Multiple tool suppliers, both handheld and PC based In use since mid 1990 s, applications still growing

21 A technical presentation of J1939 Data link level is the automotive CAN 2.0 B standard Standard is structured according to OSI (Open Systems Interconnection) model Application schemes Application Layer Presentation Layer J1939 Session Layer Transport Layer Network Layer Data Link Layer Physical Layer J1939 controller controller

22 Pro and Cons with J1939 Pro Simpler integration of components and functionality Standard mean shorter project time Simpler to reuse components and functionality Co-operation in the Industry Cons Limitations Lack of flexibility Effort of coordination

23 ABS-F EBS ESP CAN-4: SAE J1939 ABS-B LCM ECS BBM B-builder J1708/J1587 J EMS J VECU Tachograph TECU GECU J RECU RAS Cluster Audio IMMO SRS PWM Buttons in wheel SWM Phone J STD MCC ECC Dynafleet TEA2 Architecture VCADS

24 Future Volvo Trucks Electronic systems Electronic Electronic Stability Program Brake System Light Control Module Electronic Controlled Suspension CAN-4: SAE J1939 Body Builder Module J1708/J1587 J Engine Control Unit J Vehicle Control Unit Tachograph Transmission Control Unit Gear lever Control Unit J Electronic Controlled Steering Instrument Cluster Audio Immobiliser Airbag Buttons in wheel PWM Steering Wheel Module Phone J Climate control Dynafleet Truck Electronic Architecture Tool Infotainment X-by-wire IT & Telematics Remote diagnostics Safety

25 Future Volvo Trucks Truck Electronic Architecture Increased functionality with reduced number of ECU s Enhanced entertainment network (MOST, AMIC, etc.) Sensor network with smart sensors Wire less communication (blue tooth, wlan ) Service tool communication Remote control of air suspension. Dual voltage, 12V / 36 V Components will be common with the car industry Requirement for steer and brake by wire systems Integrated Starter, Alternator and Damper Electronic Electronic Stability Program Brake System J1708/J1587 J Engine Vehicle Transmission Control Unit Control Unit Control Unit Gear lever Tachograph Control Unit J J Light Control Module Electronic Controlled Steering PWM Buttons in wheel Electronic Controlled Suspension Instrument Cluster Audio Steering Wheel Module Phone CAN-4: SAE J1939 Body Builder Module Immobiliser Airbag Climate control J Dynafleet Tool

26 Future Volvo Trucks X-by-wire concepts Today: Brake-by-Wire Shift-by-Wire Throttle-by-Wire Rear Axle Steering Tomorrow: Brake-by-Wire (full) Steer-by-Wire Advantages: Reduce environmental impact: Eliminate the need for hydraulic fluids Reduce fuel consumption Increase performance and safety: Improve handling, lateral control Reduce braking stopping distance Enable Lane keeping, Collision avoidance Enhanced diagnostics Improve flexibility: Adaptive functions, feedback levels etc. Mechanical packing, LHD/RHD etc.

27 Future Volvo Trucks On board diagnostics Part is replaced in workshop On-board Diagnostics System detects worn-out part On-board diagnostics system notifies driver and Volvo Action Service Part is shipped to Workshop Just In Time Service proposal is sent to Driver / Fleet Manager: Closest / on-route work shops are suggested Workshop and service occasion selected by Driver /Fleet manager Component is ordered from parts supplier chain Workshop visit is planned

28 Future Volvo Trucks IT & Telematics Each truck has its own homepage Users configure their personal Volvo Net Services

29 Future Volvo Trucks Safety systems All around vision for improved traffic safety Adaptive Cruise Control Forward collision warning Lane change warning Blind spot detection Back-up aid Adaptive Cruise Control Blind spot detection Lane change warning Back-up aid

30 Simplified human-machine interface by voice controlled electronics for safety and comfort Address entry for navigation Telephone Order acceptance with speech Text to speech Audio control Electronic windows Rear view mirror Future Volvo Trucks Safety systems

31 Challenges of today s, tomorrow s E/E development Manage system complexity Manage multi-organisational, multi-site projects Manage requirement complexity Manage reuse and co-use Manage changes during project Manage reduced development time Manage customization at low cost

32 Integration of Sites A platform for integration of projects and organisations - reuse and sharing of system component models VTNA Mack Trucks Renault V.I. VTC

33 Integration of Disciplines Application analysis & design Function B Platform analysis & design Function A Function C System integration Subsystem X SW + HW implementation Subsystem Y

34 Telematics Fleet management Dynafleet - A Transport Information System Order Manager (mail) Message Manager (mail) Map Manager Positioning GPS (CT, IT) Map Manager Order Manager (mail) Traffic Information Message Manager (mail) Positioning GPS (CT, IT) Driver data Load indicator data Temperature data Engine data Communication Data download Dynafleet Logger Manager Driver reports Vehicle data reports

35 Dynafleet Online - A Telematics Solution Data download from vehicle, as GSM data via local comserver in each market Volvo Volvo Corporate Corporate Network Network Internet Internet Dynafleet Online Applications and databases Volvo vehicle with Dynafleet unit and GSM telephone User interface consists of webpages and communication via the internet.

36 Design department Production Software download Production preparation and After market preparation Downloader Main software Datasets Parameters Design data base VSP data base Programming package sales order parameter list variant string Truck Spec Breakdown CENTRAL VSP Vehicle data base Local database Data driven Download of software, dataset and parameters Each programming package is unique Vehicle database maintained also in the aftermarket

37 Type nam e her e Type t it le her e Type nam e her e Type nam e her e Type nam e her e Type title here Type t it le her e Type title here Evolution in Vehicle Communication WHAT CAN WE DO? GPS PDA GSM WLAN VOLVO CORPORATE NETWORK DATA INTERNET CURRENT AND PROSPECTIVE CUSTOMERS PC DEALERS SUPPLIERS VOLVO TRUCK PLANT PRODUCT DEVELOPMENT AFTERMARKET

38 Summary Maintance Cost Integrated systems Worldwide See the possibilites Complete offer