Mechanical and Control Systems for Intelligent Vehicle

1
??????????????????????????????????????Mechanical
and Control Systems for Intelligent Vehicle

• Mechanical Engineering, Chulalongkorn University
• Mechanical Engineering, Kasetsart University

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Concept
Smart Car

• Mechanical System for Smart Car
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• ????????????????????????????????
• Back Drivability/Manual Override
• ????????????????????????????????????????????????
• ????????????????????????????????????????
  ???????????????????????????????????????????
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Sub-System needed to be modified

• Engine Control
• AIR Throttle System Cruise Control
• Fuel Air/Fuel Ratio Control
• Ignition
• Engine Supported System
• Braking System
• Steering System
• Transmission/Clutch AT/CVT

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Engine Combustion
4
5
Electronic Throttle
3
6
Electronic Throttle
5
7
Electronic Throttle
2
8
Braking System
Electro-Hydraulic Drive
Electro-Mechanical Drive
Eddy Current Brake 1
1
7
9
Braking System Using Hybrid Engine
Hybrid Engine IMA
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Steering System

• Motor Actuator
• Hydraulic Actuator

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11
Hydraulic and Electro-Hydraulic Power Steering
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Steering SystemSteer by Wire
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Steering SystemSteer by Wire
Hydraulic Drive
Motor Drive Independent Wheel
Motor Drive
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Example
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Design Challenges

• Reliable brake system re-design
• Modification of steering system
• Acceleration/Deceleration smoothness
• Proper speed when turning
• Emergency stop, Emergency turn
• Control algorithm

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Conclusion

• Buy a car that has
• Cruise Control
• A/T or CVT
• Hydraulic Power Steering
• Hydraulic Disk Brake with ABS
• Modify Steering and Braking System
• Design Control strategy for these systems

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Reference

• Jeonghoon Song, Performance evaluation of a
  hybrid electric brake system with a sliding mode
  controller, Mechatronics 15 (2005) 339358.
• Jae-Bok Song, Kyung-Seok Byun, Throttle actuator
  control system for vehicle traction control,
  Mechatronics 9 (1999) 477495.
• Danijel Pavkovic a, Jos? ko Deura, Martin
  Janszb, Nedjeljko Peric c, Adaptive control of
  automotive electronic throttle, Control
  Engineering Practice () .
• R. Conatsera,J. Wagnerb, S. Gantab,I. Walkerb,
  Diagnosis of automotive electronic throttle
  control systems, Control Engineering Practice 12
  (2004) 2330.
• Rolf Isermann, Ralf Schwarz, and Stefan Stolzl,
  Fault-Tolerant Drive-by-Wire Systems, IEEE
  Control Systems Magazine, October 2002.
• Ji-Hoon Kim, Jae-Bok Song , Control logic for an
  electric power steering system using assist
  motor, Mechatronics 12 (2002) 447459
• Drive by Wire Pininfarina Autosicura, White
  Paper.
• Intelligent Vehicle Project, http//wwwsyseng.rs
  ise.anu.edu.au/
• Inside Honda's IMA System By Bill Siuru,
  http//www.greencar.com