CHASSIS DYNAMOMETER FOR 4WD VEHICLE AND SYNCHRONOUS CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To improve an ability of a synchronous control for a driving wheel of a 4WD vehicle or its power transmission system, in order to carry out various performance tests accurately, by using the synchronous control.;SOLUTION: In a chassis dynamometer for the 4WD vehicle, which equalizes velocities of anteroposterior driving wheels being driven with a difference velocity in the 4WD vehicle by using a synchronous control section 11, the difference velocity ΔV of the anteroposterior driving wheels in driving the 4WD vehicle in a test mode, is measured by a difference velocity statistics section 12, and a difference velocity control sensitivity of the synchronous control section is adjusted by a difference velocity evaluating section 13, in a scale of 3σ (σ is standard deviation) of the difference velocity, and then a control abutting value of the synchronous control section is adjusted in accordance with the magnitude of an average ΔVave of the difference velocity.;COPYRIGHT: (C)2010,JPO&INPIT