Patent ID: 8479861

Claim:
A travelling control apparatus of a compaction vehicle for compacting ground, the apparatus comprising: rotational speed detection units configured to detect respective rotational speeds of front and rear wheels and to output rotational speed signals (S 1 , S 2 ) of the rotational speeds of the front and rear wheels; a rotational speed ratio calculation means for calculating a rotational speed ratio of the front and rear wheels from the rotational speed signals (S 1 , S 2 ); a rotational speed ratio sort means for sorting data (Da) corresponding to the rotational speed ratio of the front and rear wheels into first data (D 1 ) within a first set range (T 1 ) and second data (D 2 ) out of the first set range; a reference data generation means for averaging the first data (D 1 ) and generating an average value of the first data (D 1 ) as reference data (Ds); and a slip determination means for comparing a currently obtained data (Da l ) of the data (Da) corresponding to the rotational speed ratio of the front and rear wheels calculated from currently obtained rotational speed signals (S 1 , S 2 ) by the rotational speed ratio calculation means with the reference data (Ds), and in a case of the currently obtained data (Da l ) being out of a second set range (T 2 ), for determining that one of the front and rear wheels is slipping, wherein the reference data (Ds) is a center of the second set range (T 2 ).