METHOD FOR SELF-DIAGNOSIS OF A VEHICLE SYSTEM

• Main Authors: WANG ERIK, NEUBERGER MARTIN, LIST CARSTEN, GSCHWIND-SCHILLING RAINER, HAIST KEVIN, VOIGT, DIETER
• Format: Patent
• Language: Chinese; English
• Published: 30.01.2024
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BASIC ELECTRONIC CIRCUITRY; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ELECTRICITY; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PERFORMING OPERATIONS; PHYSICS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; PULSE TECHNIQUE; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TESTING; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

The invention relates to a method for the self-diagnosis of a vehicle system (1), which is supplied with energy by a vehicle electrical system (3) and comprises a control device (ECU) having at least one integrated system circuit (ASIC) and at least one microcontroller ([mu] C), the integrated system circuit has at least one internal energy supply device (11), a process and logic control device (10) and a safety control device (12). The invention also relates to a vehicle system (1) for carrying out the method. In this case, after an on-board network voltage (VB) is applied in an initialization phase, at least one internal reference voltage (VBz) and at least one internal system voltage (V1, V2, V3, V4) for supplying the vehicle system (1) are generated within the at least one integrated system circuit (ASIC) from the applied on-board network voltage (VB) independently of the activation state of the at least one microcontroller ([mu] C), v4) and executing a hardware-supported internal self-diagnostic function