| 摘要 |
PURPOSE: An anti-skid break system(ABS) and break traction control system(BTCS) environmental durability test apparatus is provided to simplify the structure of the apparatus by eliminating a timer and a relay circuit from the structure, while achieving a high accuracy for the test. CONSTITUTION: An apparatus comprises switches(SW1,SW2,SW3) for outputting a signal for starting ABS or BTCS test; a control unit(100) for setting ABS or BTCS test in accordance with the output signal from the switch unit and outputting, in a digital signal, a wheel driving signal pattern corresponding to the set test; a digital/analog converting unit having a first D/A converter(210) and a second D/A converter(220) for receiving the wheel driving signal pattern output from the control unit; a sine wave generating unit having a first sine wave generator(220) and a second sine wave generator(320) connected to D/A converters and which generate sine wave corresponding to the input analog wheel driving signal pattern; a display unit(400) for receiving the signal output from the sine wave generating unit and displaying the condition of the test being currently performed; and an ABS/BTCS controller(500) for receiving the signal output from the sine wave generating unit and performing ABS or BTCS control.
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