Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Industrial Control Systems - Automotive Systems

1,831 views

Published on

Published in: Business, Technology
  • Be the first to comment

Industrial Control Systems - Automotive Systems

  1. 1. Industrial Control Behzad Samadi Department of Electrical Engineering Amirkabir University of Technology Winter 2009 Tehran, Iran Behzad Samadi (Amirkabir University) Industrial Control 1 / 86
  2. 2. Car Suspension Howstuffworks.com Behzad Samadi (Amirkabir University) Industrial Control 2 / 86
  3. 3. Shock Absorbers (Dampers) Howstuffworks.com Behzad Samadi (Amirkabir University) Industrial Control 3 / 86
  4. 4. Shock Absorbers (Dampers) Single tube: 1 Atmospheric pressure 2 Valve, soft spring 3 Valve, hard spring 4 Non-return valve [Bosch, 2007] Behzad Samadi (Amirkabir University) Industrial Control 4 / 86
  5. 5. Shock Absorbers (Dampers) Twin tube: 1 Atmospheric pressure 2 Reserve chamber 3 Base valve Advantages: Insensitive to stone throw. Tube can be adapted to fit in locations where space is limited. This shock-absorber type is short, as the balance chamber is next to the working cylinder. [Bosch, 2007] Behzad Samadi (Amirkabir University) Industrial Control 5 / 86
  6. 6. Shock Absorbers (Dampers) Force velocity diagram [Reimpell et al., 1995] Behzad Samadi (Amirkabir University) Industrial Control 6 / 86
  7. 7. Shock Absorbers (Dampers) Force displacement diagram [Reimpell et al., 1995] Behzad Samadi (Amirkabir University) Industrial Control 7 / 86
  8. 8. Level Control System Air suspension: 1 Air connection 2 Steel spring 3 Auxiliary air-spring element 4 Gas volume 5 Shock absorber [Bosch, 2007] Behzad Samadi (Amirkabir University) Industrial Control 8 / 86
  9. 9. Level Control System Hydropneumatic suspension: 1 Fluid supply 2 Steel spring 3 Accumulator 4 Gas volume 5 Rubber diaphragm 6 Fluid 7 Hose 8 Shock absorber System reacts to increased vehicle speed by reducing body ride height, resulting in fuel savings Increase in vehicle-body ride height on poor road surfaces Enhanced stability in curves achieved through lateral blocking of the suspension elements on a given axle [Bosch, 2007] Behzad Samadi (Amirkabir University) Industrial Control 9 / 86
  10. 10. Roll Control System Behzad Samadi (Amirkabir University) Industrial Control 10 / 86
  11. 11. Semi-active Suspension System Magnetorheological (MR) fluid: MR damper: Behzad Samadi (Amirkabir University) Industrial Control 11 / 86
  12. 12. Steering System Rack and pinion: Howstuffworks.com Behzad Samadi (Amirkabir University) Industrial Control 12 / 86
  13. 13. Power Steering System [Reimpell et al., 1995]Behzad Samadi (Amirkabir University) Industrial Control 13 / 86
  14. 14. Power Steering System Power rack: Howstuffworks.com Behzad Samadi (Amirkabir University) Industrial Control 14 / 86
  15. 15. Power Steering System Rotary vane pump: Howstuffworks.com Behzad Samadi (Amirkabir University) Industrial Control 15 / 86
  16. 16. Power Steering System Electrohydraulic: [Reimpell et al., 1995] Behzad Samadi (Amirkabir University) Industrial Control 16 / 86
  17. 17. Power Steering System Electrohydraulic: [Bosch, 2007] Behzad Samadi (Amirkabir University) Industrial Control 17 / 86
  18. 18. Electric Power Steering System delphi.com Behzad Samadi (Amirkabir University) Industrial Control 18 / 86
  19. 19. Electric Power Steering System delphi.com Behzad Samadi (Amirkabir University) Industrial Control 19 / 86
  20. 20. Steer by Wire delphi.com Behzad Samadi (Amirkabir University) Industrial Control 20 / 86
  21. 21. Four Wheel Steering delphi.com Behzad Samadi (Amirkabir University) Industrial Control 21 / 86
  22. 22. Brake System cartechservice.com Behzad Samadi (Amirkabir University) Industrial Control 22 / 86
  23. 23. Vacuum Booster and Master Cylinder Assembly [Limpert, 1992] Behzad Samadi (Amirkabir University) Industrial Control 23 / 86
  24. 24. Master Cylinder Howstuffworks.com Behzad Samadi (Amirkabir University) Industrial Control 24 / 86
  25. 25. Vacuum Booster and Master Cylinder Assembly carbibles.com Behzad Samadi (Amirkabir University) Industrial Control 25 / 86
  26. 26. Dual Hydraulic Circuit carbibles.com Behzad Samadi (Amirkabir University) Industrial Control 26 / 86
  27. 27. Hydraulic Leverage Howstuffworks.com Behzad Samadi (Amirkabir University) Industrial Control 27 / 86
  28. 28. Simple Brake System Howstuffworks.com Behzad Samadi (Amirkabir University) Industrial Control 28 / 86
  29. 29. Brake System Main factors affecting the overall gain: Pedal conversion Boost factor Diaphragm surface area Vacuum pressure Surface area of master cylinder [Bosch, 2007] Behzad Samadi (Amirkabir University) Industrial Control 29 / 86
  30. 30. Disk Brakes carbibles.com Behzad Samadi (Amirkabir University) Industrial Control 30 / 86
  31. 31. Drum Brakes - Single Leading Edge carbibles.com Behzad Samadi (Amirkabir University) Industrial Control 31 / 86
  32. 32. Drum Brakes - Double Leading Edge carbibles.com Behzad Samadi (Amirkabir University) Industrial Control 32 / 86
  33. 33. Diagonally Split Circuit conti-online.com Behzad Samadi (Amirkabir University) Industrial Control 33 / 86
  34. 34. Proportioning Valve Load-sensitive brake force reducing valve: The cut-in pressure is altered to correspond to the vehicle’s load by means of a mechanical device which transmits the relative movement between axle and vehicle body to the step-bore piston in the valve. The force acting on the step-bore piston during braking is again modified by the dynamic axle load transfer and thus influences the braking force on the rear axle. This guarantees maximum deceleration while at the same time largely preventing locking of the rear axle and the resulting danger of skidding. conti-online.com Behzad Samadi (Amirkabir University) Industrial Control 34 / 86
  35. 35. Proportioning Valve centricparts.com Behzad Samadi (Amirkabir University) Industrial Control 35 / 86
  36. 36. Air Brake System Why air brakes? Air brake systems are more tolerant to small leaks. The smallest leak in a hydraulic system could result in brake failure. An air brake system includes a compressor to generate more compressed air as needed. icbc.com Behzad Samadi (Amirkabir University) Industrial Control 36 / 86
  37. 37. Air Brake System icbc.comBehzad Samadi (Amirkabir University) Industrial Control 37 / 86
  38. 38. Air Brake System icbc.comBehzad Samadi (Amirkabir University) Industrial Control 38 / 86
  39. 39. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 39 / 86
  40. 40. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 40 / 86
  41. 41. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 41 / 86
  42. 42. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 42 / 86
  43. 43. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 43 / 86
  44. 44. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 44 / 86
  45. 45. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 45 / 86
  46. 46. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 46 / 86
  47. 47. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 47 / 86
  48. 48. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 48 / 86
  49. 49. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 49 / 86
  50. 50. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 50 / 86
  51. 51. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 51 / 86
  52. 52. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 52 / 86
  53. 53. Air Brake System The compressor will continue to pump air, but all of its output will take the path of least resistance and be vented at the line rupture. icbc.com Behzad Samadi (Amirkabir University) Industrial Control 53 / 86
  54. 54. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 54 / 86
  55. 55. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 55 / 86
  56. 56. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 56 / 86
  57. 57. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 57 / 86
  58. 58. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 58 / 86
  59. 59. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 59 / 86
  60. 60. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 60 / 86
  61. 61. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 61 / 86
  62. 62. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 62 / 86
  63. 63. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 63 / 86
  64. 64. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 64 / 86
  65. 65. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 65 / 86
  66. 66. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 66 / 86
  67. 67. Air Brake System Once the supply line is connected to the trailer, there needs to be a way of directing air pressure to the trailer. icbc.com Behzad Samadi (Amirkabir University) Industrial Control 67 / 86
  68. 68. Air Brake System There are times when it may be benefi cial to apply only the trailer brakes with out applying the tractor brakes, such as when coupling the tractor to a trailer. icbc.com Behzad Samadi (Amirkabir University) Industrial Control 68 / 86
  69. 69. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 69 / 86
  70. 70. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 70 / 86
  71. 71. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 71 / 86
  72. 72. Air Brake System icbc.com Behzad Samadi (Amirkabir University) Industrial Control 72 / 86
  73. 73. Antilock Braking System (ABS) Reduce stopping distance Maintain steerablity Maintain lateral stability bosch.de Behzad Samadi (Amirkabir University) Industrial Control 73 / 86
  74. 74. Antilock Braking System (ABS) Maximize tire-road adhesion with wheel slip control [Bosch, 2007] Behzad Samadi (Amirkabir University) Industrial Control 74 / 86
  75. 75. Antilock Braking System (ABS) [Bosch, 2007] Behzad Samadi (Amirkabir University) Industrial Control 75 / 86
  76. 76. Antilock Braking System (ABS) ABS components: Electronic Control Unit Hydraulic Modulator Wheel Speed Sensors conti-online.com and bosch.de Behzad Samadi (Amirkabir University) Industrial Control 76 / 86
  77. 77. Antilock Braking System (ABS) howstuffworks.com Behzad Samadi (Amirkabir University) Industrial Control 77 / 86
  78. 78. Antilock Braking System (ABS) ABS MK20: Samand, Peugeot, Citroen, VW,... conti-online.com Behzad Samadi (Amirkabir University) Industrial Control 78 / 86
  79. 79. Antilock Braking System (ABS) Bosch ABS5: Hinten (rear), Vor (front), Richtig (right), Linke (left) [Bosch, 2007] Behzad Samadi (Amirkabir University) Industrial Control 79 / 86
  80. 80. Antilock Braking System (ABS) ABS MK20: Hinten (rear), Vor (front), Richtig (right), Linke (left) [Bosch, 2007] Behzad Samadi (Amirkabir University) Industrial Control 80 / 86
  81. 81. Electronic Stability Program (ESP) Vehicle lateral variables: Yaw rate Sideslip angle (β) [Bosch, 2007] Behzad Samadi (Amirkabir University) Industrial Control 81 / 86
  82. 82. Electronic Stability Program (ESP) bosch.de Behzad Samadi (Amirkabir University) Industrial Control 82 / 86
  83. 83. Electronic Stability Program (ESP) [Bosch, 2007] Behzad Samadi (Amirkabir University) Industrial Control 83 / 86
  84. 84. Electronic Stability Program (ESP) ESP components: Wheel speed sensors (A) Steering angle sensor (B) Combined yaw rate sensor/lateral accelerometer (C) Electronic Control Unit (ECU) (D) Hydraulic unit (E) Motor (F) Pressure sensor (G) bosch.de and edmunds.com Behzad Samadi (Amirkabir University) Industrial Control 84 / 86
  85. 85. Electronic Stability Program (ESP) [Bosch, 2007] Behzad Samadi (Amirkabir University) Industrial Control 85 / 86
  86. 86. Brake by Wire Siemens VDO: vdo.com Behzad Samadi (Amirkabir University) Industrial Control 86 / 86
  87. 87. Bosch, R., editor (2007). Bosch Automotive Handbook. Wiley, 7 edition. Limpert, R. (1992). Brake Design and Safety. Society of Automotive Engineers Inc. Reimpell, J., Stoll, H., and Betzler, J. W. (1995). The Automotive Chassis: Engineering Principles. Arnold. Behzad Samadi (Amirkabir University) Industrial Control 86 / 86

×