Electric VS Hydraulic Power Steering


Steering Cars are many types of hydraulic models up to model Electric. How to care also varies. The need for power steering is now becoming the most important thing, as well as what has been held in several product of automobile. For all passenger cars is equipped with power steering.
• Hydraulic Power Steering
Cars antiquity who already have power steering on a car with front-wheel drive type, when it was applied in a saloon type car. Power steering use rack and pinion power system, which some call the integral power steering gear assembly.


In this system still uses the power steering pump (usually mounted on the engine) is driven using a belt. Flow of oil from the power steering pump to the rack using a high power steering hose pressure and behind the power steering hose. Operation of the hydraulic power steering: If we turn the steering wheel, making the weight of the vehicle occur friction tires on the road that eventually lead to a torsion bar in the rotary valve be banked.


1. Hydraulic Control Valve
2. Pinion Gear
3. Hydraulic Pressure/Return Lines
4. Hydraulic Piston
5. Rack Housing


• Electric Power Steering
Or abbreviated EPS, is one of the mechanisms spec latest technology without the use of power steering oil pump. Electronic Power Steering can work by itself on when the car is in the On position (standby), of course, the key contact us in advance so that the power generated by the electric power steering motors can be driven by electric power generated by the battery. Power steering indicator can also be seen on your car dashboard, usually characterized by light with a picture of a circular wheel. If the machine is turned on Noise Suppressor send commands to the control module to run the electric motor and a clutch that connects the motor to the steering column.


So that the sensors are located on the steering rack to send information to the control module when the wheel starts rotate. Once the command to the control module will reverse the flow of electricity in accordance with the needs of the electric motor to immediately do a round steering gear, so when you turn the handlebar steering wheel so lighter.



EPS also has a vehicle speed sensor system, is used when the when the car is running at a speed of more than 80 km/h. Then the vehicle speed sensor will switch off the electric power steering motors it becomes heavier, more secure and stable so that when the car at high speed.

Thus setting the electric motor runs automatically according to the needs and the magnitude of its electric current. When an error occurs, the sensor provides a specific code if there is a malfunction in the system.
1. Pinion Shaft
2. Steering Torque Sensor
3. Rack-and-Pinion Housing
4. Electric Motor
5. Ball-screw Mechanism
6. Steering Rack
7. Drive Belt


How to Maintain Power Steering so good and durable:
1. While the car turn it better the car is started first and then turn.
2. Avoid turning the steering wheel to get stuck too long.
3. Fill the power steering oil ATF.
4. For the parts that should be replaced, serviced, or damaged components should preferably genuine
5. If the type of power steering has a hydraulic type, required protective rubber boot steer must be cleaned and always check whether the right and left loose, torn or other damage.
6. When we park the car for the position we must straighten the front wheels.
7. The use of tires is recommended also have a low friction.

A description of the power steering functions are:
• Control Module: used for setting the EPS work is a computerized program.
• Electric motors: is the function of reducing the burden on the time we turn the steering stem.
• Vehicle Speed Sensor: In Located in the gearbox which serves to inform the speed of the car.
• Torque Sensor: located on the steering column that is useful to provide information when the steering wheel is rotated and how fast turnover.
• Clutch: responsible for connecting and disconnecting between the motor and the steering column under the conditions
• Noise Suppressor: It acts as a sensor that detects the engine is running or not.
• Onboard Diagnostic Display: The form of the indicator on the instrument panel will light up if there is a problem with the EPS system.