A self-contained platform to conduct a comprehensive series of validation tests in Automotives and Aviation.

Starter motors are high-speed DC series motors used in automobiles for cranking of the engine during starting.

The Dynaspede PC-based Test rig, is designed to provide a self-contained platform to conduct a comprehensive range of validation tests on such Starter Motors. The Test Rig mainly consists of a suitably rated AC dynamometer for loading from true on-Load up to stall, suitable sensors, and special fixtures for clamping of different types of Starter Motors, quick-coupling arrangement, safety guards and interlocks.

A PC-based intelligent control system, integral to the test bench, ensures proper sequencing of tests and recording of data for analysis and outputting various information as tabulated and performance graphs. The automated test sequences can be performed by selecting appropriate Set-up Menu on the dedicated PC-based control system.

The Tests that are conducted on starter motors include:

No load test
The Test motor is run under no-load conditions for a preset time to record speed, voltage and current. Here, the motor is first disengaged from the loading device by means of the “quick-disconnect coupling” and then switched ON.

Dynamic test
The motor is gradually loaded from no-load up to its full load limit in a controlled ramp till stall condition with recording and plotting of the performance parameters.

Temperature rise test
This test is conducted for measuring the temperature rise on the motor body during the cyclic load test. The starter motor is repeatedly loaded to preset loads for 10 cycles, and the temperature on the body is measured and displayed. If this temperature is more than pre-specified limits, the test will be terminated and the appropriate error message will be displayed on the PC.

Endurance test
Endurance test is similar to temperature rise test except that the number of load cycles can be defined. Also, if the current along with temperature exceeds the specified range, the system will trip.

Armature run down time test
During the test, the motor will be ON until it reaches the no-load speed. Then the supply to the motor is switched off. The time taken by the motor to come to a standstill is recorded.

Binding test
In this test, the test motor is switched ON under locked condition to record critical parameters.