Method for the automatic control of the locking clutches of an a

Details Method for the automatic control of the locking clutches of an a Method for the automatic control of the locking clutches of an a

1997-11-24

2000-01-04

Hurley, Kevin

Motor vehicles

Having four wheels driven

With differential means for driving two wheel sets at...

180197, 701 88, B60K 2304

Patent

active

060099690

ABSTRACT:
A method for the automatic locking of the differentials of an all-wheel driven vehicle, slip signals being formed which, as soon as they exceed a threshold value, initiate the driving of the respective differentials. In order to take into account the influence of the steering rolling radius, the change in the steering value is ascertained. From this, using a function determined by the geometry of the vehicle, an apparent slip is ascertained. From the respective apparent slip, corrected threshold values are determined and measured slip signals are compared with the corrected threshold values and, if necessary, the driving of the respective differential is initiated. The method can also be used on a vehicle having articulated-vehicle steering.

REFERENCES:
patent: 4511011 (1985-04-01), Makita
patent: 5005131 (1991-04-01), Imaseki et al.
patent: 5301768 (1994-04-01), Ishikawa et al.
patent: 5332059 (1994-07-01), Shirakawa et al.
patent: 5535124 (1996-07-01), Hosseini et al.
patent: 5570755 (1996-11-01), Fruhwirth et al.

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