PURPOSE: To take a test of vibration which is superior in safety and economy by calculating arithmetic data by a computing element from run distance and piston displacement of an exciting cylinder which are stored in a test data storage device when a target signal and test data coincide with each other.
CONSTITUTION: This device is provided with the test data storage device 16, detectors 4W6 which detect test data, a transmitter 15 which obtains target run state data from the storage device 16 and sends a target signal, and a comparator 14 which compares outputs of the detectors 4W6 with the target signal. An excitation signal generator 13 which sends a command on the basis of the comparison result of the comparator 14, and its operational amplifier 12 are provided. A run distance computing element 17 calculates the run distance of a vehicle from a vehicle speed stored in the storage device 16. A run road surface computing element 18 calculates road surface data the piston displacement of the exciting cylinder and run distance which are stored in the test data storage device when the target signal and test data coincide with each other. Consequently, a test of vibration which is superior in safety and economy is taken.
KIMURA TADASHI
DEGAWA TAKAYASU
WATANABE OSAMU
INOUE MASAO
MITSUBISHI HEAVY IND LTD
| JPS54124401A | 1979-09-27 |
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