Motor vehicle energy management having a supplementary starter diagnostic function
First Claim
Patent Images
1. A device for diagnosing a starter of a combustion engine system, wherein the combustion engine system includes a vehicle battery and a battery disconnect switch provided in a connecting line of the vehicle battery, the device comprising:
- a vehicle-electrical-system-state detection device that monitors a vehicle electrical system;
wherein;
the vehicle-electrical-system-state detection device includes a diagnostic functionality configured to diagnose the starter; and
the diagnostic functionality checks a starting current of the starter for a presence of at least one of a high frequency, short-circuit current peaks, and a decreasing current amplitude, and, if at least one of the high frequency, the short-circuit current peaks, and the decreasing current amplitude is present, the diagnostic functionality sets at least one corresponding fault flag.
2 Assignments
0 Petitions
Accused Products
Abstract
A diagnostic device for the starter of a combustion engine is provided. The electrical system of a motor vehicle includes a battery in whose connecting line a battery disconnect switch is provided, and the electrical system of the motor vehicle is monitored by a vehicle electrical system state detection device which includes starter diagnostic functionality.
34 Citations
17 Claims
-
1. A device for diagnosing a starter of a combustion engine system, wherein the combustion engine system includes a vehicle battery and a battery disconnect switch provided in a connecting line of the vehicle battery, the device comprising:
-
a vehicle-electrical-system-state detection device that monitors a vehicle electrical system; wherein; the vehicle-electrical-system-state detection device includes a diagnostic functionality configured to diagnose the starter; and the diagnostic functionality checks a starting current of the starter for a presence of at least one of a high frequency, short-circuit current peaks, and a decreasing current amplitude, and, if at least one of the high frequency, the short-circuit current peaks, and the decreasing current amplitude is present, the diagnostic functionality sets at least one corresponding fault flag.
-
-
2. A device for diagnosing a starter of a combustion engine system, wherein the combustion engine system includes a vehicle battery and a battery disconnect switch provided in a connecting line of the vehicle battery, the device comprising:
-
a vehicle-electrical-system-state detection device that monitors a vehicle electrical system; wherein; the vehicle-electrical-system-state detection device includes a diagnostic functionality configured to diagnose the starter; and the diagnostic functionality checks a starting current of the starter for a presence of at least one of high-frequency components, short-circuit current peaks, and a decreasing current amplitude, and, if at least one of the high-frequency components, the short-circuit current peaks, and the decreasing current amplitude is present, the diagnostic functionality sets at least one corresponding fault flag. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification