Automobile Info- New cars,bikes model,new automobile technology

Wednesday, June 19, 2013

Difference Between ABS Braking and Non ABS Braking


ABS Braking Vs Non ABS Braking

The beauty is that ABS system allow for steering during emergency braking whereas if you hit the brakes and skid forward you can not steer away from harm's ways. ABS systems don't necessary make you stop in a shorter distance, they make your drive safer by allowing you to steer during the emergency braking scenario whereas with non-ABS equipped vehicles you can not.



For road use, ABS is an absolute must as it will allow you to steer out of the way of unexpected hazards. Diagrams below explain the practical reasons for ABS.

Braking hard on a slippery surface with ABS or Without ABS


In the diagram above, the driver hits the brakes hard on a slippery surface then steers successfully manages to avoid the obstacle with ABS. ABS prevents the wheels from locking and this allows you steer.

Without ABS, as the driver applies the brakes the wheels lock, Despite applying steering lock, the car continues straight ahead due to the loss of steering control and a collision results.

To know more click on below link
What is ABS Braking and How it Work

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Monday, June 17, 2013

WHAT IS ABS BRAKING SYSTEM AND HOW IT WORKS


Anti-lock Braking System (ABS) 

ABS is an automobile safety system that allows the wheels on a motor vehicle to maintain tractive contact with the road surface according to driver inputs while braking, preventing the wheels from locking up (ceasing rotation) and avoiding uncontrolled skidding. It is an automated system that uses the principles of threshold braking and cadence braking.

How ABS Works

ABS includes a central electronic control unit (ECU), four wheel speed sensors, and at least two hydraulic valves within the brake hydraulics. The ECU constantly monitors the rotational speed of each wheel with the help of wheel speed sensor; if ABS system detects that one wheel is slowing down more rapidly than the others, a condition indicative of impending wheel lock, it automatically reduces the brake pressure on this wheel by opening release valve in hydraulic cylinder , thus reducing the braking force on that wheel; the wheel then turns faster. Conversely, if the ECU detects a wheel turning significantly faster than the others, brake hydraulic pressure to the wheel is increased so the braking force is reapplied, slowing down the wheel. This process is repeated continuously and can be detected by the driver via brake pedal pulsation. Some anti-lock systems can apply or release braking pressure 16 times per second.

ABS breaking system

ABS Braking Components

There are three main components of ABS:

1. Speed Sensors
2. Hydraulic Modulator
3. Controller 


Speed sensors:
The speed sensors, which are located at each wheel, or in some cases in the differential, provide this information of wheel speed.

Hydraulic Modulator:
Hydraulic modulator has two main component :


Valves:
There is a valve in the brake line of each brake controlled by the ABS. On some systems, the valve has three positions:
In position one, the valve is open; pressure from the master cylinder is passed right through to the brake.
In position two, the valve blocks the line, isolating that brake from the master cylinder. This prevents the pressure from rising further should the driver push the brake pedal harder.
In position three, the valve releases some of the pressure from the brake.


Pump:
When the ABS system operates the brake lines lose pressure. The pump re-pressurizes the system.


Controller:
The controller is an ECU (Electronic control unit) type unit in the car which receives information from each individual wheel speed sensor, in turn if a wheel loses traction the signal is sent to the controller, the controller will then limit the brake force (EBD) and activate the ABS modulator which actuates the braking valves on and off.
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Sunday, April 28, 2013

WHAT IS AIR BAG IN CAR?


An airbag is a vehicle safety device. Airbags are balloon-like devices that expand when a car experiences a collision, providing a cushion of air that prevents a person bashing their face on the dashboard or steering wheel and suffering concussion.


Generally, air bags are designed to deploy when the severity of a crash reaches a preset impact  value. Depending on the specific vehicle model, this impact is normally equivalent to a vehicle crashing into a solid wall at 13-23 km/h. Air bags most often deploy when a vehicle collides with another vehicle or with a solid object like a tree. 

Airbags are usually fitted in the front seats. A car that is described as having a “driver’s side airbag” has one airbag only, designed to protect the driver. If a car has “dual airbags,” it has one airbag for the driver and another air-bag for the passenger.

air bag in car


How Air Bag Works


Air bags inflate when a sensor detects a front-end crash severe enough to trigger their deployment. The sensor sends an electric signal to start a chemical reaction that inflates the air bag with harmless nitrogen gas. All this happens faster than the blink of an eye. Air bags have vents, so they deflate immediately after absorbing the energy of an occupant. They cannot smother you and they don't restrict your movement. The "smoke" you may have seen in a vehicle after an air bag demonstration is the nontoxic starch or talc that is used to keep the insides of the air bag from sticking together.

To know click on link
What is ABS Braking  System

What is Central Locking System

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Sunday, March 17, 2013

How Car Central Locking System Works

Working system of Central Locking Door

This is electro- mechanical mechanism. it is controlled by these following subsystem :
  • Remote controller : Remote transmit produce unique coded infra red (IR) or radio frequency (RF) signal to ECM.
  • Electronic control module (ECM): ECM is signal processing unit, which control the different solenoid or motors of actuators upon receiving the IR or RF signals.
  • Actuators : Locking or unlocking of door done by actuator which is placed in the door.

   

 Other Link for Safety Feature of your Car:-

What is ABS Braking System

How Clutch Works 

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Tuesday, March 5, 2013

HOW TO IMPROVE CLUTCH LIFE


You can do several things to improve the life of your clutch. These are

  1. All components must be properly adjusted.
  2. Improve riding or driving style to eliminate excessive slipping.Due to excessive slipping excessive heat produce resulted rapid wear.
  3. Always use the best available components. High quality of component will save money and tension in long run.
  4. Most Important thing is to use proper lubrication at regular intervals.




THERE ARE SOME PROBLEM RELATED TO CLUTCH  WHICH YOU FACE IN YOUR VEHICLE DURING DRIVE
PROBLEM
EXPECTED CAUSE
Stick or Drag
1. Clutch controls are improperly adjusted. Clutch cable is collapsing.
2. Spring tension too tight, spring binding.
3. Friction plates may be warped
4. Improper adjustment on primary drive chain.
Slipping
1. Clutch controls are improperly adjusted.
2. Insufficient clutch spring tension.
3. Warped or worn friction plates.
Hard Shifting Transmission
1. Improper drive train chain
2. Clutch controls are improperly adjusted. Clutch cable is collapsing.
3. Transmission or gear box problem.
4. Unclean chain case

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HOW CLUTCH WORKS - A BRIEF IDEA

In vehicle clutch, the flywheel is connected to the engine, and the clutch plate is connected to the transmission as shown in picture. when your foot is off the pedal, the springs push the pressure plate against the clutch disc, which in turn presses against the flywheel. This locks the engine to the transmission input shaft, making them spin at the same speed

The amount of force the clutch can hold depends on the friction between the clutch plate and the flywheel, and how much force the spring puts on the pressure plate.

When the clutch pedal is pressed, a cable or hydraulic piston pushes on the release fork, which presses the throw-out bearing against the middle of the diaphragm spring. As the middle of the diaphragm spring is pushed in, a series of pins near the outside of the spring cause the spring to pull the pressure plate away from the clutch disc. This releases the clutch from the spinning engine

To Know click here

How to Improve Clutch Life 

What is ABS Braking System 

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Sunday, March 3, 2013

Why Choke Is Used In MotorCycle ??


Are you not aware why we use chock in motorcycle and how chock works, so here is article to make you understand the use of chock in motor cycles.You might face problem in starting your bike every morning because you didn't use it for last several hours, so it become cold.When your motorcycle is cold , and if there is starting issue with your bike , Then we use chock  ,we put the chock in ON position , starts the bike and release it back to OFF position. Use of chock facilitates the start up and warming of the engine.

Function :  chock is used to regulate Air / Fuel mixture during engine startup. When we ON chock, In realty we closing air intake , which changes the proportion of mixture that reaches the engine , making it a lot easier to allow easy start of your bike.The richer fuel mixture burns easily in cold engine.


Caution : Chock is really helpful in starting your bike, but it is very important that you use the chock for the minimum time possible . You should keep chock On for couple of minutes, then just wait till your engine warms up. Extended use of the chock can damage longevity of engine. and it will also consume more oil, so more burden on your pocket.

The chock lever may be located anywhere in your bike depending on the make and model. it might be located at left side of the handlebar by the grip or at the carburetor itself.
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