Control system for driving and steering driverless transport dev

Details Control system for driving and steering driverless transport dev Control system for driving and steering driverless transport dev

1987-08-24

1989-01-31

Mitchell, David M.

Motor vehicles

With means for controlling operation responsive to...

Having controlling means adapted to interact with stationary...

180131, 318310, 318587, 36442402, B60K 2600, B62D 124

Patent

active

048009776

ABSTRACT:
Each transport device contains at least two drive wheels which are driven at individual speeds V.sub.A and V.sub.B and which are pivotable by related steering angles .alpha. and .beta.. Identical servo-drive units are associated with the drive wheels and their mode of operation and mutual coupling is adapted by switch devices to the steering angles .alpha. and .beta. such that the required speed adjustment must not be computed in accordance with the relationship V.sub.B =(cos.alpha./cos.beta.). V.sub.A but the speed is automatically adjusted through the entire steering angle range of -90.degree. to +90.degree.. At .alpha.=.beta.=0.degree. the leading servo-drive unit is rigidly guided by its speed regulation loop as a MASTER servo-drive unit and its armature current is supplied as a reference magnitude to the armature current regulation loop of the trailing servo-drive unit which is operated as a SLAVE servo-drive unit. At .alpha.=.beta.=.+-.90.degree. the two servo-drive units operate as independent MASTER servo-drive units and their speed regulation loops receive related reference speed signals from related microcomputers. Throughout the steering angle range of -90.degree. to +90.degree. the MASTER/SLAVE configuration and the MASTER/MASTER configuration are selectively used depending on the operating conditions and the travel durations. The optimum adaption of the servo-drive units to the steering angles and the limitation of the speed to the maximum speed which corresponds to optimum efficiency, insure precise track guidance, improved maneuverability and minimum current consumption.

REFERENCES:
patent: 4078630 (1978-03-01), Krieg
patent: 4127182 (1978-11-01), Thole
patent: 4307329 (1981-12-01), Taylor
patent: 4520299 (1985-05-01), Konrad

Affiliated with

Also associated with

Rating

Control system for driving and steering driverless transport dev 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 driving and steering driverless transport dev, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for driving and steering driverless transport dev will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-173628