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Join Date: Nov 2008
Posts: 19

Brake System Design for Heavy Duty Vehicles

03/31/2009 7:26 AM

Hello everyone,

I am looking for the Basic Brake System Design Documents for Heavy Duty vehicles.

I know the function of various valves involved in Brake system like Relay Valve, Drying & Distribustion Unit, Trailer Control Valve, etc... But what are the criterias need to consider while choosing the above Valves. Like from the Compressor Input the Tank capacity is decided, also after you start the engine how much time it should needed to fill the Air Tanks. These are just examples.

It will be really helpful if anyone can provide the Design Guidebook for Brake System. Thanks in Advance.

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Guru
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#1

Re: Brake System Design

03/31/2009 7:39 AM

Bendix is one of the big suppliers of HD brake systems. They are a good start in your quest. You can find them at www.bendix.com.

A good example of designing a very efficient braking system can be found by reading the requirements built into custom built fire equipment. Aircraft fire equipment is almost always custom built to the end user's specifications. You can see what is required for the brake systems of these trucks by doing a web search of NFPA 414.

Any truck that is funded by the FAA must meet this standard. Good luck.

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#2

Re: Brake System Design for Heavy Duty Vehicles

03/31/2009 11:32 PM

We can develop new technology for Breck system which connected /assembled with gear box for small and medium vehicles which centralised for all wheels. The other view is that if big trailer, wherein we use cenralised brake / common brake for all wheels. In this system reduce the brake load by mechanisms and control the speed. This brake working two way , (1 ). Slowly controle the speed by hydraulic system (2).and other system fixed the wheels. This is immage stage, just idea so action /reaction may be resulted. You may think in this manner.

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Location: Valsad, Gujarat, India
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#3

Re: Brake System Design for Heavy Duty Vehicles

12/03/2009 10:13 PM

Hello, In this technology no need additonal pressure, Air pressure resulted atomatically when break working. If we open the air valves the break automatically silent. It is common for all wheels.

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Guru
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#4
In reply to #3

Re: Brake System Design for Heavy Duty Vehicles

12/03/2009 11:30 PM

In trailers, there is no moving connection between the wheels. A centralized brake will require a device to each wheel.

In large trucks, using a centralized brake device would require it to be able to convert all of the vehicle's speed into heat. This would then require it to be four to six times as large as the current wheel brakes.

In a centralized braking system, any broken axle or driveshaft would cause a complete loss of brakes.

These are not SAFE conditions.

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