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SANDEEP KUMAR YADAV
MECHANICAL ENGINEERING
ROLL NO. CSJMA12001390272
UIET CSJM UNIVERSITY
KANPUR
AUTRONICS IN A VIEW
FIG.1 [1]
INTRODUCTION
 AUTOTRONICS= AUTOMOBILE + ELECTRONICS
 first electronic part in an automobile was called an ECU
(Engine control unit)
 Analysts estimate that more than 80 percent of all automotive
innovation now stems from electronics
FIG.2 [2]
HISTORY:
TIMELINE:
 1970’s: Introduction of electronics for engine controls
 1980’s: Anti-lock braking introduced
 Early 1990’s: Airbags become standard
 Late 1990’s: Rapid expansion of body electronics – seat
motors
 Computers, instrument panel lighting, auto locking systems and
keyless entry
 Early 2000’s to date: infotainment, including sophisticated
audio and video ; Signals sent via satellite (such as the OnStar
System); GPS and mapping Capabilities; satellite radio
 Late 2000’s: Steer-by-wire, wireless connectivity
Automobile applications of autotronics
in following domains:
• Braking system
• Steering system
• Suspension system
• Transmission system
• Engine (fuel intake)
Braking system
 EBS increases traffic safety through
reduced stopping distance and improved
brake stability.
Functions In ECB:
 Anti-lock braking system (ABS):
 Traction control system (TCS)
 Brake lining wear control
FIG.3[3]
ABS:
 ABS is an acronym for anti-lock braking system. First
developed and patented in 1936, ABS is actually derived from
the German term "anti blockier system."
 Anti-lock brakes are designed to prevent skidding and help
drivers maintain steering control during an emergency stopping
situation
Difference between ABS & Traction Control
 ABS
manage the grip of the tires for braking maneuver
 Traction Control
manage the grip of the tires for accelerating maneuver
STEERING SYSTEM
 The self-alignment estimation
control uses both the EPS sensor
information and internally
programmed EPS control.
Speed sensitive steering system:
 Used to control the power
steering pump pressure in relation to vehicle speed.
 Below 10mph (16km/h) the computer operates the steering
 This action reduces the steering effort during low speed
maneuver and parking.
 Electrically powered steering
uses an electric motor to drive
either the power steering
hydraulic pump or the steering
directly.
 Steering sensor" is located
on the input shaft where
it enters the gearbox housing.
 An interface circuit that
same housing converts the
signals from the torque sensor and rotation sensor into signals.
 The vehicle motion estimation control uses the steering angular
velocity information internally programmed in the EPS system.
 This control helps improve yaw damping of the vehicle at higher
speeds on the road.
Sensors
 Accelerating sensor ,displacement sensors, Steering wheel position
SUSPENSION SYSTEM
 suspension systems in most vehicles on the road today are
passive.
 Shock absorbers help to dissipate the energy applied to the
springs and damp the oscillations .
Active Roll Control Systems :
 Vehicles lean when cornering due to the weight transfer
imposed by lateral acceleration. Factors contributing to the roll
angle of the vehicle include vehicle height and suspension
stiffness.
 ARC system uses hydraulic and electronic technology to the
vehicle roll angle in cornering, which improves handling.
The active roll control system contains
 Control module,
 Accelerometer,
 Speed sensor,
 Fluid reservoir,
 Electrohydraulic pump,
 Pressure control valve,
 Directional control valve, FIG.4[4]
 A hydraulic actuator in both the
front and rear stabilizer bars .
TRANSMISSION SYSTEM
 Mainly it controls the shifting process of the gears.
 Electronically controlled transmissions were introduced on
BMW products in 1986 on 5 and7 series vehicles.
 The TCM also adapts to changing conditions within the
transmission by monitoring slip ratios .
 The TCM controls the operation of the Lock-Up Torque
Converter which further increases economy
ADVANTAGES:
 Increased fuel economy
 Improved shift comfort
 Increased driving safety
Electronic Fuel Injection
 EFI system electronically
meters the fuel so that the
exact amount needed is provided
to the engine.
 EFI uses to fuel to power the
engine by pumping it forcibly FIG.5[4]
by using high pressure through a
small nozzle or valve.
 A high-pressure fuel pump that produces high fuel
pressures (5 to 12 MPa)
ADAPTIVE CRUISE CONTROL
 It automatically adjusts the
vehicle speed and distance to
that of a target vehicle.
 ACC uses a long range radar
sensor to detect a target
vehicle up to 200 meters in
front of vehicle.
 As per standard cruise control FIG.6[4]
the driver can override the system at any time.
 Another advantage of this system is that the driver will not
exceed the speed limit on the highway.
Airbags
0000
FIG.7[4]
 The air bag technology is based on electronic sensors that
measure the amount of quick deceleration through an
accelerometer
 The new calculations will take into account the position of the
seats, the use of a seat belt and the weight of the occupants.
Latest research
 Active bumper system,
 active hood lift system,
 vehicle to vehicle communication
 Camber thrust in F 1 vehicles
 Global Positioning System
 Rain sensing wipers
 Adaptive light system
CONCLUSION
 We briefly presented current and future vehicular electronics
system
 An approach that uses modern technique to solve most of the
local vehicular problems.
 The automobile industry and will likely continue as people
always want and expect more from their cars.
REFERENCE
[1] Mechanical Engineering Design by Joseph Shigley.
[2]”Applying Model-Based Design to Commercial Vehicle
Electronics Systems”; Tom Egel, Michael Burke, Michael
Carone, Wensi Jin The Math Works, Inc.; 2008.
[3] Development of EPS+; Sumio MOTOYAMA 2009.
[4] REAL TIME FUEL INJECTION IN SI ENGINE USING
ELECTRONIC INSTRUMENTATION; V. VINOTH KUMAR;
2010.
 autotronics Sandeep yadav ppt

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autotronics Sandeep yadav ppt

  • 1. SANDEEP KUMAR YADAV MECHANICAL ENGINEERING ROLL NO. CSJMA12001390272 UIET CSJM UNIVERSITY KANPUR
  • 2. AUTRONICS IN A VIEW FIG.1 [1]
  • 3. INTRODUCTION  AUTOTRONICS= AUTOMOBILE + ELECTRONICS  first electronic part in an automobile was called an ECU (Engine control unit)  Analysts estimate that more than 80 percent of all automotive innovation now stems from electronics FIG.2 [2]
  • 4. HISTORY: TIMELINE:  1970’s: Introduction of electronics for engine controls  1980’s: Anti-lock braking introduced  Early 1990’s: Airbags become standard  Late 1990’s: Rapid expansion of body electronics – seat motors  Computers, instrument panel lighting, auto locking systems and keyless entry  Early 2000’s to date: infotainment, including sophisticated audio and video ; Signals sent via satellite (such as the OnStar System); GPS and mapping Capabilities; satellite radio  Late 2000’s: Steer-by-wire, wireless connectivity
  • 5. Automobile applications of autotronics in following domains: • Braking system • Steering system • Suspension system • Transmission system • Engine (fuel intake)
  • 6. Braking system  EBS increases traffic safety through reduced stopping distance and improved brake stability. Functions In ECB:  Anti-lock braking system (ABS):  Traction control system (TCS)  Brake lining wear control FIG.3[3]
  • 7. ABS:  ABS is an acronym for anti-lock braking system. First developed and patented in 1936, ABS is actually derived from the German term "anti blockier system."  Anti-lock brakes are designed to prevent skidding and help drivers maintain steering control during an emergency stopping situation Difference between ABS & Traction Control  ABS manage the grip of the tires for braking maneuver  Traction Control manage the grip of the tires for accelerating maneuver
  • 8. STEERING SYSTEM  The self-alignment estimation control uses both the EPS sensor information and internally programmed EPS control. Speed sensitive steering system:  Used to control the power steering pump pressure in relation to vehicle speed.  Below 10mph (16km/h) the computer operates the steering  This action reduces the steering effort during low speed maneuver and parking.
  • 9.  Electrically powered steering uses an electric motor to drive either the power steering hydraulic pump or the steering directly.  Steering sensor" is located on the input shaft where it enters the gearbox housing.  An interface circuit that same housing converts the signals from the torque sensor and rotation sensor into signals.  The vehicle motion estimation control uses the steering angular velocity information internally programmed in the EPS system.  This control helps improve yaw damping of the vehicle at higher speeds on the road. Sensors  Accelerating sensor ,displacement sensors, Steering wheel position
  • 10. SUSPENSION SYSTEM  suspension systems in most vehicles on the road today are passive.  Shock absorbers help to dissipate the energy applied to the springs and damp the oscillations . Active Roll Control Systems :  Vehicles lean when cornering due to the weight transfer imposed by lateral acceleration. Factors contributing to the roll angle of the vehicle include vehicle height and suspension stiffness.  ARC system uses hydraulic and electronic technology to the vehicle roll angle in cornering, which improves handling.
  • 11. The active roll control system contains  Control module,  Accelerometer,  Speed sensor,  Fluid reservoir,  Electrohydraulic pump,  Pressure control valve,  Directional control valve, FIG.4[4]  A hydraulic actuator in both the front and rear stabilizer bars .
  • 12. TRANSMISSION SYSTEM  Mainly it controls the shifting process of the gears.  Electronically controlled transmissions were introduced on BMW products in 1986 on 5 and7 series vehicles.  The TCM also adapts to changing conditions within the transmission by monitoring slip ratios .  The TCM controls the operation of the Lock-Up Torque Converter which further increases economy ADVANTAGES:  Increased fuel economy  Improved shift comfort  Increased driving safety
  • 13. Electronic Fuel Injection  EFI system electronically meters the fuel so that the exact amount needed is provided to the engine.  EFI uses to fuel to power the engine by pumping it forcibly FIG.5[4] by using high pressure through a small nozzle or valve.  A high-pressure fuel pump that produces high fuel pressures (5 to 12 MPa)
  • 14. ADAPTIVE CRUISE CONTROL  It automatically adjusts the vehicle speed and distance to that of a target vehicle.  ACC uses a long range radar sensor to detect a target vehicle up to 200 meters in front of vehicle.  As per standard cruise control FIG.6[4] the driver can override the system at any time.  Another advantage of this system is that the driver will not exceed the speed limit on the highway.
  • 15. Airbags 0000 FIG.7[4]  The air bag technology is based on electronic sensors that measure the amount of quick deceleration through an accelerometer  The new calculations will take into account the position of the seats, the use of a seat belt and the weight of the occupants.
  • 16. Latest research  Active bumper system,  active hood lift system,  vehicle to vehicle communication  Camber thrust in F 1 vehicles  Global Positioning System  Rain sensing wipers  Adaptive light system
  • 17. CONCLUSION  We briefly presented current and future vehicular electronics system  An approach that uses modern technique to solve most of the local vehicular problems.  The automobile industry and will likely continue as people always want and expect more from their cars.
  • 18. REFERENCE [1] Mechanical Engineering Design by Joseph Shigley. [2]”Applying Model-Based Design to Commercial Vehicle Electronics Systems”; Tom Egel, Michael Burke, Michael Carone, Wensi Jin The Math Works, Inc.; 2008. [3] Development of EPS+; Sumio MOTOYAMA 2009. [4] REAL TIME FUEL INJECTION IN SI ENGINE USING ELECTRONIC INSTRUMENTATION; V. VINOTH KUMAR; 2010.