CROSS CHECK STRATEGY FOR SYSTEMATIC ERROR PROTECTION

• Main Authors: CHANDY, Ashok, MILLSAP, Scott
• Format: Patent
• Language: English; French; German
• Published: 26.04.2017
• Subjects: BLASTING; CHEMISTRY; ENGINEERING ELEMENTS AND UNITS; FUELS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; LIGHTING; LUBRICANTS; LUBRICATING COMPOSITIONS; MECHANICAL ENGINEERING; METALLURGY; MOTOR VEHICLES; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THERMAL INSULATION IN GENERAL; TRAILERS; TRANSPORTING; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION; WEAPONS

A method for generating and verifying an output command for using in a power steering system (12) is provided. The method receives, by a module (40) having at least a primary processing path (130) and a secondary processing path (135) that is in parallel with the primary processing path, a set of input signals(105). In the primary processing path, the method generates a primary output command (115) based on the set of input signals and sends the primary output command out of the module. In the secondary processing path, the method generates a first range of command values based on the set of input signals (105), determines whether the primary output command (115) falls within the range of command values, and generates a fault signal (125,470) based on determining that the primary output command does not fall within the first range of command values.