This document discusses drive by wire technology. It begins with an introduction and overview of the history and working principle. It then describes the different systems within drive by wire, including steer by wire, throttle by wire, and brake by wire. Each system replaces the traditional mechanical control systems with electronic sensors and actuators controlled by an engine control module. The advantages are more design flexibility, weight reduction, improved safety and performance, and potential for advanced driver assistance features. The document concludes by discussing future applications and trends toward more customizable control interfaces using drive by wire technology.

2.  INTRODUCTION
 HISTORY
 WORKING PRINCIPLE
 SYSTEMS OF DRIVE BY WIRE
 TIPS TO INVEST ON DRIVE BY WIRE
 FUTURE OF DRIVE BY WIRE

3. Emerging technology in the automobile
environment.
Replaces the traditional mechanical
control system by the modern electronic
control systems.
System reduces number of moving parts.
Intermediate shafts pumps , hoses , belts ,
coolers and master cylinders are
eliminated.

4. Drive by wire system can be called as “ a
computer network with a car wrapped
around it”.

5. 1995-BMW technic began working on
the project Z 22 TO CHANGE carbon
fibre structure to drive by wire .
1998-aircraft technology using
computerised joystick .
2002-HY WIRE car by general motors .
2009-Wire “de assault systems solid
works” releases .

6. 2010-introduces sensors for the paddle

7. Drive by wire works on the electro-mechanical control
system.
Main controlling system is ECM or ENGINE
CONTROL MODULE
SENSORS send signals to ECM and
ACTUATOR actuates.
ECM is connected to several systems.
ECM

8. ECM controls the signal and circulates the signal to
suitable system.

9. STEER BY WIRE
THROTTLE BY WIRE
BRAKE BY WIRE

10. No direct mechanical connection between the
steering wheel and the wheel of vehicle.

11.  Angle of the steering rod is sensed by the sensor
 ECM recieves the signal of the sensor
 Enviromental sensors analyse enviromental factors like yaw
, roll over position.
 Using all these inputs tiers are actuated using steering
sensors and actuators .
Advantages of steer by wire:-
 interior styling is more versatile due to absence of steering
column.
 There is more space available in the engine compartment.

12. Driving characteristics can be monitored and the
steering response can be easily adjusted.

13.  Automotive technology that is widely used today on vehicle
replaces the traditional throttle linkage by cables.

14. Accelerator sensor senses the position of the
accelerator paddle
ECM actuates the servo pump which actuates the
butterfly valve by electronically operated throttle .
Position of throttle is continuously monitored by the
ECM .
Information is send to the ECM by using a feed back
circuit.

15. IT helps in controlling the air fuel ratio ,Fuel
consumption
The ETC is also working 'behind the scenes' to
dramatically improve the ease with which the driver
can execute gear changes and deal with the dramatic
torque changes associated with rapid accelerations and
decelerations.
It helps in maintaining the stability of a vechile

16. Eliminates traditional mechanical and hydrulic
components .
Replaces them with electronic sensors and actuators to
control the brakes in the vehicle

17. Consists of a rheostat that senses the position of the
brake paddle .

18.  ADVANTAGES OF BRAKE BY WIRE:-
 Reacts more quickly resulting in shorter stopping distance
and time .
 Loss of mechanical systems results in noiseless operation
and elimination of vibration
 Lesser space consumed making the engine compartment
and compact and helping in better space utilization
 Allows the ECM to integrate torque management with
cruise control, traction control and stability control
 Reduces the weight of the overall system thus improving
fuel efficiency
 Lack of mechanical power may facilitate the need the
introduction of hybrid and fuel cells based vehicles

19. Interior designing , styling is more styling and versitile
More space availability in the engine compartment .
Simplifies design and lowers the manufacturing costs .

20. System can be modeled and easily instaled .
 Elimination of vibrations .
Noiseless operations.
Reduces the weight of overall system .
Improves fuel efficiency .

21. Steering responce can be easily adjusted .
Reacts more quickly resulting in shorter stopping
distance and time .

22.  It has been suggested that Drive by Wire might allow a
car to become completely separate from its controls,
meaning that a car of the future might theoretically be
controlled by any number of different control systems:
push buttons, joysticks, steering wheels, or even voice
commands - whatever device that designers could
come up with.