BRAKE BIASING

At the time of braking the weight of the vehicle transfers to the front wheels due to which more braking effort is required on the front wheels,therefore brake biasing is required.If brake biasing is not done then rear tires may skidd and braking won’t be efficient.
for BIASING the BRAKES , a biasing bar is required which is connected to master cylinders.
there are 2 methods of achieving brake biasing:
1> by tilting the bisaing bar
2> by shifting the point of application of force

please watch the video i have explained everything in detail 🙂

Fuel injectors

OHV v/s DOHC v/s SOHC

 

OHV – OverHead Valve

an engine design where the camshaft is installed inside the engine block and valves are operated through lifters, pushrods and rocker arms

 Advantages of an OHV: lower cost, compact size and proven durability.

SOHC -Single OverHead Cam

In a SOHC engine the camshaft is installed in the cylinder head and valves are operated either by the rocker arms or directly through the lifters.

Advantages of sSOHC–  precise timing at higher RPMs, possible to install three or four valves per cylinder.

DOHC-Double OverHead Cam

DOHC engine has two camshafts and 4 valves per cylinder. One camshaft operates intake valves  while another camshaft controls exhaust valves.

Advantages oh DOHC-DOHC engine can “breathe” better and thus produces more horsepower out of smaller engine volume.

 

 

 

Weight transfer

There are three ways that weight transfers can occur:

• Acceleration
• Deceleration
• Steering

Weight transfers occur as a result of the chassis twisting around the car’s roll centre, which determined by the natural suspension setup. When accelerating, braking or steering, the body of the car rotates in the opposite direction, which compresses the suspension on one side of the car, while releasing the weight on the other side.
Hey friends this is a video explaining about how weight transfer takes place in vehicles at the time of turning braking and acceleration…
A very helpful video

ackermann steering geometry

The Ackerman Steering Principle defines the geometry that is applied to all vehicles (two or four wheel drive) to enable the correct turning angle of the steering wheels to be generated when negotiating a corner or a curve.

Ackermann steering geometry is a geometric arrangement of linkages in the steering of a car or other vehicle designed to solve the problem of wheels on the inside and outside of a turn needing to trace out circles of different radii.

The typical steering system, in a road or race car, has tie-rod linkages and steering arms that form an approximate parallelogram, which skews to one side as the wheels turn. If the steering arms are parallel, then both wheels are steered to the same angle. If the steering arms are angled, as shown in Figure 1, this is known as Ackerman geometry. The inside wheel is steered to a greater angle then the outside wheel, allowing the inside wheel to steer a tighter radius.

you can understand it much better on my youtube channel “BHOLA MECHTECH”.

ackerman steering in english: https://www.youtube.com/watch?v=axppRLteY1Y&t=5s

ackerman steering in hindi: https://www.youtube.com/watch?v=_FiiASe3SQo&t=13s

thanks for reading…

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