Abstract: A method, system and computer program performed by a system and a system for wireless communication between electronic control units (ECU's) in a communications network, the electronic control units being adapted for association with at least one vehicle, the method including determining a first electronic control unit, determining a second electronic control unit, determining a first network delay between the first electronic control unit and the second electronic control unit, calculating a first offset time for the first network delay, detecting time from a time source, detecting pulse from a pulse source, transmitting a message from the first electronic control unit to the second electronic control unit, coordinated processing of the message in the first electronic control unit and the second electronic control unit based on the first offset time, the time and the pulse.

Abstract: A method for detecting faults in a vehicle control system that has functional units. Each functional unit has an associated unique label in the form of a finite field element, and the method includes: calling each of the functional units, the call comprising a readable traversal value, and in case the functional unit is operating correctly, updating the traversal value based on the unique label of the currently called functional unit; and determining from the updated traversal value if any functional units are faulty by a comparison with an expected traversal value.

Abstract: A method for detecting faults in a vehicle control system comprising functional units having an associated unique prime number label is provided. The method comprises calling each of the functional units, the call comprising a readable and updateable integer traversal value, and in case the functional unit is operating correctly, updating the traversal value to be the product of the value in the call and the label of the currently called functional unit, and in the case of a fault, not updating the traversal value. Further, the method comprises determining from the traversal value if any functional units are faulty by a comparison with an expected traversal value, and, in the case that the traversal value is not equivalent to the expected traversal value, determining which functional units are faulty by a unique prime factorization algorithm.

Abstract: A method for detecting faults in a vehicle control system comprising functional units having an associated unique prime number label is provided. The method comprises calling each of the functional units, the call comprising a readable and updateable integer traversal value, and in case the functional unit is operating correctly, updating the traversal value to be the product of the value in the call and the label of the currently called functional unit, and in the case of a fault, not updating the traversal value. Further, the method comprises determining from the traversal value if any functional units are faulty by a comparison with an expected traversal value, and, in the case that the traversal value is not equivalent to the expected traversal value, determining which functional units are faulty by a unique prime factorization algorithm.