hydrolic and electrical steering syestem

1. GANDHINAGAR INSTITUTE OFGANDHINAGAR INSTITUTE OF
TECHNOLOGYTECHNOLOGY
Design Engineering (2141901)Design Engineering (2141901)
Subject : Automobile SteeringSubject : Automobile Steering
Branch : Mechanical Engineering (4D(2))Branch : Mechanical Engineering (4D(2))
Guided By: Kashayap RamiyaGuided By: Kashayap Ramiya
NAMENAME ENROLLMENTENROLLMENT
NO.NO.
Panchal YashPanchal Yash 160123119022160123119022
Panchal PraharshPanchal Praharsh 160123119021160123119021
Gupta PavanGupta Pavan 160123119012160123119012
Pathak JaydeepPathak Jaydeep 160123119029160123119029

2. Hydraulic SteeringHydraulic Steering
Steering Wheel
Steering Shaft
Steering cam
Steering gear
Pitman Arm Shaft
Drag link
Tie Rod
Components of Hydraulic Steering

3. Hydraulic SteeringHydraulic Steering
Reservoir Pump
Relief valveControl valve
Power Cylinder
Components of Hydraulic System

4. Hydraulic SteeringHydraulic Steering
Principle Of Hydraulic Steering
•The Hydraulic Steering works on the principal of pressure differences.
•The difference in pressure affects the position of piston in power supply which in
turn affects pitman arm shaft and lever.

5. Working Mechanism
• The schematic diagram is shown
• The Reservoir supply fluid to Pump
• The Pump transfer it to relief with
pressure, than to control valve
• The control valve directs the fluid
to power cylinder and than to reservoir.
• When the steering wheel is turned it rotates the steering shaft and
steering cam both.
• Steering cam also do up and down moment along with rotation
Hydraulic SteeringHydraulic Steering

6. Working Mechanism
• The up and down moment of cam
Control the control valve through
Control valve linkage
• It pull or push the spool to one dir-
-ection and as a result fluid start
flowing to the power cylinder in one
direction as a result pressure difference is created.
• Due to this the piston moves and with its movement it also move pitman arm lever
which is connected through rod. And wheel is moved to the desire direction.
• It this stage the pump still drawn fluid, which is transfer back to the reservoir with
the help of relief valve.
Hydraulic SteeringHydraulic Steering

7. Hydraulic SteeringHydraulic Steering
Model Of Hydraulic Steering

8. Electrical SteeringElectrical Steering
System Components Of Electrical Steering
•Steering wheel
•Steering column switch with steering angle sensor
•Steering column
•Steering moment sensor(Torque sensor)
•Steering gear
•Electro-mechanical power steering motor
•Power steering control unit

9. Electrical SteeringElectrical Steering
Schematic View Of Electrical Steering

10. Electrical SteeringElectrical Steering
Disassembled View Of Electrical Steering

11. Electrical SteeringElectrical Steering
Model Of Electrical Steering

12. Difference Between Hydraulic And Automobile SteeringDifference Between Hydraulic And Automobile Steering
Hydraulic Steering Electrical Steering
1. Hydraulic fluid is used as primary need of
steering.
1. Electric motor needed as primary need od
steering.
2. Low efficient then Electrical Steering. 2. It gives Higher Efficiency.
3. Safe but sometimes it create big problems. 3. Safest and have no problem.
4. Maintance cost is high. 4. Maintance is low.
5. Need to change oil after some time. 5. Checking of wires and small maintaince
needed.
6. In this mostly,
Pipe or house at hydrolic fluid will broken.
Bush Broken.
6. In this mostly,
Wire broken.
Electrical power not reached to the motor.

13. Problems Occurred While Using Hydraulic SteeringProblems Occurred While Using Hydraulic Steering
• Hydraulic Steering System weights usually more than electric system.
• Hydraulic Steering System carry fluid for transmission as compared to
electric system so need more maintenance.
• Electric system give better response as compared to Hydraulic power
steering at different speed.
• Hydraulic Steering System has more prone and faults and less durable
as compare to electric steering system.
• Electric system will give more mileage with one having hydraulic
steering system

14. Problems Solved While Using Electrical SteeringProblems Solved While Using Electrical Steering
• No hydraulic components, for example power steering oil pump, hoses,
oil tank, filter.
• No hydraulic fluid.
• Space savings.
• Reduction in noise.
• Energy savings(fuel saving by 4%).
• No complex hose and wiring system.
• Good straight-line stability.
• Direct but soft application of the steering input.
• No uncomfortable steering reactions over uneven driving surfaces .

15. QuestionsQuestions

16. Thank youThank you