Electrohydraulic system for an enclosed automobile carrier

Details Electrohydraulic system for an enclosed automobile carrier Electrohydraulic system for an enclosed automobile carrier

1987-02-24

1989-04-18

Bennett, Henry A.

Freight accommodation on freight carrier

Particular article accommodation

Wheeled vehicle

B60P 308

Patent

active

048222224

ABSTRACT:
A car-carrying trailer having hydraulic cylinders for moving ramps has a single movable manually activated control unit and a single transmission link coupled to the control for controlling substantially all of the cylinders within the trailer. Data is received from the control unit and processed to determine the position of the ramps within the trailer and to produce control signals. Hydraulic cylinders move the ramps in accordance with the control signals. Position sensors transmit feedback to the processor and permit automatic termination of movement of the ramps to prevent damage to the cars. A vehicle is loaded onto the trailer and ramps within the trailer are adjusted until optimum ramp positions are obtained. Further in accordance with the invention sequence number is associated with the optimum ramp positions and the ramp positions are saved in a memory. At a later time, when the vehicle is to be loaded again, a sequence of ramp positions may be accessed. The single transmission link may be a cable or a radio frequency.

REFERENCES:
patent: 2892656 (1959-06-01), Stuart
patent: 4046399 (1977-09-01), Zeuner
patent: 4050596 (1977-09-01), Zeuner et al.
Polaroid, "Ultrasonic Ranging System".
MTS Systems Corporation, "Temposonics".
James W. Bush, "The Logistical Link", Ward's Auto World, Aug. 1985.
Frank Yeaple, "Jackknife Carloader", Design News, Jul. 20, 1987.

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