System for determining the position of a bulldozer

Details System for determining the position of a bulldozer System for determining the position of a bulldozer

1997-10-06

2000-03-07

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Construction or agricultural-type vehicle

701 1, 180197, 172 45, 172 7, 172811, 340988, G06F 770, E02F 300

Patent

active

060352493

ABSTRACT:
An improved accuracy is ensured for the calculation of the travel distance of a bulldozer by obtaining the accurate vehicle speed and travel direction of the bulldozer. To this end, arrangement is made such that a check is made to determine whether actual tractive force F exerted on the blade exceeds a predetermined shoe slip threshold value F.sub.0 ; switching between vehicle speed detectors (between a Doppler sensor and Sprocket rotating speed detector) is made according to the determination so that suitable one of the vehicle speed detectors detects the vehicle speed of the bulldozer; and the vehicle speed detected by the selected vehicle speed detector is integrated, whereby the travel distance of the bulldozer is calculated.

REFERENCES:
patent: 5219411 (1993-06-01), Yamamoto et al.
patent: 5287280 (1994-02-01), Yamamoto et al.

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