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Method and apparatus for controlling wheel slip on differentially mounted wheels

  • US 4,349,233 A
  • Filed: 05/07/1980
  • Issued: 09/14/1982
  • Est. Priority Date: 05/07/1980
  • Status: Expired due to Term
First Claim
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1. In an anti-slip apparatus for balancing the power transfer between a pair of driven wheels (8), (9) when one of the wheels loses traction and rotates faster than the other, said apparatus having braking means (15) for braking the wheels (8), (9) and generating means (20), (21), (24) for generating a slip signal corresponding to any difference in the rotational speeds between the wheels (8), (9), wherein the improvement comprises:

  • hydraulic actuating valve means (28), (30) for individually actuating said braking means (15) to minimize any rotational speed difference between the wheels (8), (9), said actuating valve means (28), (30) being connected to a source of hydraulic pressure (49) and to said braking means (15); and

    ,hydraulic modulating valve means (29) for modulating said actuating valve means (28), (30) in response to the slip signal to proportionally vary the braking force individually applied to the wheels (8), (9) by the actuating valve means (28), (30).

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