US 12,443,705 B2
Method for monitoring a component of an event chain
Hans-Leo Ross, Lorsch (DE); and Lucas Heil, Untergruppenbach (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Aug. 30, 2022, as Appl. No. 17/823,328.
Claims priority of application No. 10 2021 209 691.3 (DE), filed on Sep. 3, 2021.
Prior Publication US 2023/0071630 A1, Mar. 9, 2023
Int. Cl. H04L 29/06 (2006.01); G06F 21/33 (2013.01); G06F 21/55 (2013.01); B60W 50/00 (2006.01)
CPC G06F 21/554 (2013.01) [G06F 21/33 (2013.01); B60W 50/0098 (2013.01); G06F 2221/034 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for monitoring components of an event chain, the method comprising:
generating a first certificate for a component of the components of the event chain using a first enclave, wherein the components of the event chain are for an at least semi-automated driving function of a motor vehicle using a watchdog, in which the first enclave is implemented;
outputting the first certificate to the component using the watchdog;
receiving output data output by the component using the watchdog;
checking the output data based on the first certificate using the first enclave to output a first check result, wherein the checking includes checking whether the output data have been received within a predetermined time interval after the outputting of the first certificate, so that the first check result indicates whether the output data have been received within the predetermined time interval after outputting the first certificate; and
triggering a security action using the watchdog based on the first check result indicating that the output data was received outside the predetermined time interval;
wherein the components include at least one component of the motor vehicle, and wherein the at least one component includes at least one surroundings sensor.