Patent ID: 8860349
Filing Date: 2014-10-14
Classification: B62D

Abstract:
1. A method for safety cutoff of an electromechanical motor vehicle power steering system, in which safety switches are provided for electrical separation of a servomotor from a control system or a vehicle electrical system, the method including: a) receiving a fault signal in a control system; b) sending a switch-off signal via control lines to the safety switches; c) checking electrical voltages present on the safety switches; d) deciding whether the switch-off signal on each safety switch has led to switch-off without avalanche breakdown; e) if the switch-off signal on one or more safety switches has not led to switch-off without avalanche breakdown, switching back on those safety switches that could not be switched off without avalanche breakdown; f) repeating b) to e) until all safety switches have been switched off successfully without avalanche breakdown.