Brake Pad Dynamo-Meter Test Machine

Brake Pad Dynamo-Meter Test Machine is used to process the brake performance test and NVH test on assembled brake by combining mechanical inertia and electrical inertia, it permits the replication of braking performance for a wide range of vehicle sizes.

Inertia simulation allows for precise vehicle inertia points to be tested via the drive motor system by adding or subtracting energy from the rotating system.

The advantages of dynamo-meter with inertia simulation include less upfront cost (fewer discs), less overall time to change the mechanical inertia discs, increased flexibility to change inertia values during the test procedure, and higher accuracy through the elimination of machine losses.

Technical Parameters：

• – Host and main drive system
• – Host: split structure, host and test platform are separated
• – Motor power: 160 KW
• – Speed range: 0 to 2000 rpm
• – Constant torque range: 0 to 990 rpm
• – Constant power range: 991 to 2000 rpm
• – Speed control accuracy: ± 0.2%FS
• – Speed measurement accuracy: ± 0.1%FS
• – Overload capacity: 150%

Control System

• – System components: PC + PLC
• – Software: based on Windows XP
• – Screen display: Including the current test program status, real-time data display, real-time test curve, text information, data input window, each step test results list, alarm information.
• – Test program generation: control procedures with VC ++ language, windows text editor editing, simple, readable, easy to understand.
• – Report: Based on Microsoft® Excel®

Inertia system

• – Combining mechanical inertia and electrical inertia
• – The base inertia: 10 kgm2
• – The minimum mechanical inertia: 10 kgm2
• – Dynamic flywheel: 40kgm2 x 4 + 20kgm2 x 2 = 200kgm2
• – The maximum mechanical inertia: 210 kgm2
• – Maximum electrical simulation inertia: 40 kgm2
• – Electrical simulation inertia:
• – The simulation range: 10-250 kgm²
• – Control accuracy: +/- 2kgm²

Hydraulic brake System

• – Maximum braking pressure: 21MPa
• – Maximum pressure rising rate: 1600 bar/sec
• – Brake fluid flow: 55 ml
• – Pressure control linearity: < 0.25%
• – Dynamic pressure control: Allows input of programmable dynamic pressure contron

Measuring System

• – Temperature
• – Measuring range: -25 – 1000 ℃
• – Measurement accuracy: ± 1% FS
• – Compensation line type: K type thermocouple
• – Pressure
• – Measuring range: 25 MPa
• – Measurement accuracy: ± 1% FS
• – Speed
• – Pulse channel # 1: 5000 pulses / turn
• – Torque
• – Full scale: 5000 N.m.
• – Measurement accuracy: ± 1% FS

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