在近来机车车辆高速化,行车密度显著增长的形势下,铁道机车车辆定置走行试验装置的重要性日益突出出来了。日立制作所从很早以前就注意到这个形势,以日本铁道技术研究所装置的机车车辆试验机为开端制造了各种铁道机车车辆试验机,本文以转向架试验机为中心叙述这类试验机的构成、控制方法和试验内容等。 In the recent high-speed locomotives, driving significantly increased the density of the situation, the fixed-locomotive rolling stock test device has become increasingly prominent the importance of. Hitachi has taken note of this situation from a very early time and started to manufacture various types of rolling stock test machines with rolling stock test machines installed by the Japan Railway Institute of Technology. This paper describes the testing machine with a bogie tester as the center Composition, control methods and test content.