Control system for an at least temporarily four-wheel-driven...

Details Control system for an at least temporarily four-wheel-driven... Control system for an at least temporarily four-wheel-driven...

2007-08-10

2011-12-13

Tran, Khoi (Department: 3664)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Control of power distribution between vehicle axis or wheels

C701S070000, C701S074000, C701S089000, C701S090000

Reexamination Certificate

active

08078374

ABSTRACT:
In the case of a control system for an at least temporarily four-wheel-driven motor vehicle having an electronic control unit, which determines at least the rotational speeds of all wheels and the vehicle speed, and by which the driving torque of a drive unit can be distributed in a variable manner by way of a controllable transfer clutch to primary driving wheels, which are permanently connected with the drive unit, and to secondary driving wheels which, can be connected with the drive unit as required, the control unit closes the transfer clutch when the slip of a rear wheel exceeds the slip of the front wheel of the same vehicle side by a value which is greater than a given first threshold and when, preferably, also the longitudinal deceleration of the vehicle exceeds a given second threshold or the lateral acceleration of the vehicle exceeds a given third threshold.

REFERENCES:
patent: 4986388 (1991-01-01), Matsuda
patent: 5471390 (1995-11-01), Sasaki
patent: 5701247 (1997-12-01), Sasaki
patent: 5924510 (1999-07-01), Itoh et al.
patent: 7197386 (2007-03-01), Billig et al.
patent: 2006/0113135 (2006-06-01), Billig et al.
patent: 40 11 272 (1990-10-01), None
patent: 197 24 490 (1997-12-01), None
patent: 100 54 023 (2002-05-01), None
patent: 103 33 650 (2005-02-01), None
German Search Report dated Jun. 20, 2007 with English translation of relevant portion (Nine (9) pages).

Affiliated with

Also associated with

Rating

Control system for an at least temporarily four-wheel-driven... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control system for an at least temporarily four-wheel-driven..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for an at least temporarily four-wheel-driven... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4310259