US 12,093,376 B2
Apparatuses and methods for detecting manipulation on a bus system of a vehicle
Stefan Traub, Friedrichshafen (DE); Mauro Cesar Zanella, Friedrichshafen (DE); and Joao Curti, Friedrichshafen (DE)
Assigned to ZF FRIEDRICHSHAFEN AG, Friedrichshafen (DE)
Appl. No. 17/290,782
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE)
PCT Filed Oct. 7, 2019, PCT No. PCT/EP2019/077037
§ 371(c)(1), (2) Date Jun. 21, 2021,
PCT Pub. No. WO2020/094312, PCT Pub. Date May 14, 2020.
Claims priority of application No. 10 2018 218 902.1 (DE), filed on Nov. 6, 2018.
Prior Publication US 2022/0004629 A1, Jan. 6, 2022
Int. Cl. G06F 21/55 (2013.01); G06F 13/36 (2006.01); G06N 3/08 (2023.01)
CPC G06F 21/554 (2013.01) [G06F 13/36 (2013.01); G06N 3/08 (2013.01); G06F 2221/034 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A safety device for detecting manipulations on a bus system of a vehicle, the safety device comprising:
a receiver configured to connect to the bus system of the vehicle and to receive a signal from the bus system;
an analyzer configured to analyze a transition duration of the signal between an off state and an on state; and
an evaluator configured to evaluate the signal as a manipulated signal or an unmanipulated signal based on analysis of the transition duration performed by the analyzer and based on a distance between the receiver and an origin of the signal by comparing the transition duration to an unmanipulated signal transition duration corresponding to the distance between the receiver and the origin of the signal.