Patent Number: 7,613,559

Title: Method for automatically actuating longitudinal blocks in four wheel drive vehicles, in particular in working machines and service vehicles

Abstract: A method for automatically actuating longitudinal blocks in four-wheel vehicles, particularly in working machines and service vehicles. The longitudinal blocks are always open when driving situations occur in which the blocking effect is absolutely unnecessary. The longitudinal blocks are closed in all other situations.

Inventors: Burkhart; Hugo (Ravensburg, DE), Aumann; Bernd (Amtzell, DE)

Assignee: ZF Friedrichshafen AG

International Classification: B60K 23/08 (20060101)

Expiration Date: 1/03/02017