| 摘要 |
PURPOSE:To measure the power of a four-wheel drive vehicle almost in an actual run state by controlling rotational loads on dynamometers of front and rear wheels electrically on the basis of resistance loads allotted to the dynamometers of the front and rear wheels. CONSTITUTION:The run resistance loads Wa and electric inertial load Ya for the front wheels which are calculated in a simulation run by load arithmetic means 22 and 24 on the basis of a set ratio of driving force allotment are added together by an adder 62 for the front wheels and outputted as the allotted load Za of a dynamometer 12a for the front wheels. Thus, the rotational loads of dynamometers 12a and 12b are controlled electrically on the basis of allotted loads Za and Zb for the front and rear wheels to simulate a run of the four- wheel drive vehicle 100 on rollers 10a and 10b on the same condition with an actual run road. |
