Testing braking systems on a dynamometer stand (test bench)

Over 40 years’ experience in testing brakes

 
BOSMAL Automotive Research and Development Institute Ltd has over 40 years’ of experience in testing brakes. During that time, we have performed tests according to many different standards like: SAE, ISO, JASO or manufacturer norms.
We have tested many braking systems over the years including: OEM, ATE, TRW, Brembo, Bosch, Sumitomo, Tokico, Aisin, Akebono, Girling, Teves, Mando, ABS and from many cars like: Porsche, Volvo, Range Rover, Volkswagen, Fiat, Toyota, Suzuki, BMW, Renault, Mercedes-Benz, Alfa-Romeo, Hyundai, Audi, Lancia, Opel, Skoda, Seat and many others. We have experience in testing both disc and drum brakes.
 

Testing equipment

LINK Model M3000 Brake Dynamometer for brake testing

The dynamometer allows testing of the drum and disc brake systems at full scale in the range of functional tests and durability:
  • friction material: brake pads and shoes
  • brake drums
  • solid and ventilated brake discs of any type and material.
 

The test bench is adapted to test: 

  • Conventional hydraulic systems
  • Electro-hydraulic systems (SBC)
  • Electro-mechanical systems (EBM)
  • Hybrid brakes
Technical specification and capabilities of the Dyno:
 
 DC Drive Motor Power 186 kW
 Speed range 0 ÷ 2500 rpm
 Maximum braking torque 5650 Nm
 Minimum simulated inertia 5 kgm2
 Minimum mechanical inertia 42,7 kgm2
 Maximum mechanical inertia 128 kgm2
 Maximum simulated inertia 250 kgm2
 Maximum brake pressure 200 bar
 Maximum pressure ramp rate 1000 bar/sec 
 

Velocity

The inertia brake test station LINK Model 3000 is equipped with a DC drive motor that allows to reach a wide range of rotational speeds up to 2500 revolutions/min which allows to test a wide range of vehicles up to theirs top speed, in some cases it is 350 km/h or even more.

Inertia simulation characteristics

The LINK M3000 brake dynamometer enables the dynamic inertia simulation in the range of 5 kgm2 to 250 kgm2. This means we can test a large range of vehicles from light passenger cars, through heavy SUVs, up to light commercial vehicles. The Dyno can break with braking torque up to 5650 Nm which allows to do 10 m/s2 for all of the mentioned vehicles and much more for some lighter ones.

Data acquisition

The LINK M3000 test station allows to record in real time on time line the following signals:
  • Braking torque
  • Rotational speed
  • Linear speed
  • Deceleration
  • The pad/shoe temperature
  • The disc/drum temperature
  • The brake pressure
  • Acceleration
  • Fluid displacement
  • Actual inertia
  • Cooling air temperature
  • Cooling air flow
  • Image from the HD camera
  • DTV - disc thickness variation
  • Noise peak level
  • Noise peak frequency
  • Noise peak duration
  • and many more…

Data acquisition and analysis

All the signals can be recorded in real time and on timeline. The signals can be stored with the frequency up to 1000 Hz. We offer a full support in analysing the results and comparing them with data obtained on other friction material.

Video image acquisition

The test chamber is fitted with a video camera that allows registration of the video image in real time and on time line. The image is stored in HD quality. There is also a possibility to store the noise and vibrations emitted by the brake.