METHOD FOR TESTING AN ELECTRO-HYDRAULIC STEERING SYSTEM OF A VEHICLE AND ELECTRO-HYDRAULIC STEERING SYSTEM

A method for testing an electro-hydraulic steering system (1) of a vehicle is described, the system (1) having two parallel branches (4, 5), wherein each branch (4, 5) is able to control the steering of the vehicle system (1) comprising a main electric power supply (20) connected to both branches (4, 5), wherein at least one of the branches (5) is connected to a backup battery (25). [0002] The backup battery should be tested in a simple way. [0003] To this end testing is performed by disconnecting the main electric power supply (20) from this branch (5) and using this branch (5) as test load of the backup battery (25).