Automotive fault detection systems and methods

A method for performing automotive fault detection and recovery in an automotive fault detection and recovery system comprising:

• in first and second instances of a first automotive safety integrity level (ASIL) domain circuit of first and second chiplet dies, respectively, disposed in a system-on-a-chip (SoC) integrated circuit (IC) package, performing at least a first ASIL domain process on one or more ASIL input signals to produce first and second output signals, respectively, that are outputted from the first and second instances of the first ASIL domain circuit, respectively, the first and second chiplet dies being interfaced with one another via a die-to-die interface to enable the first and second chiplet dies to communicate with one another;
• with a fault monitoring system, monitoring at least the first chiplet die for faults and assigning a first value to a selector signal if the fault monitoring system detects a fault in the first chiplet die;
• and
• with a selector circuit that receives the selector signal and the first and second output signals, outputting the second output signal from the automotive fault detection and recovery system to an automotive control unit input signal path if the selector signal has been assigned the first value.

A non-transitory computer-readable medium comprising computer instructions for execution by at least first and second chiplet dies disposed in a system-on-a-chip (SoC) integrated circuit (IC) package of an automotive fault detection and recovery system, the first and second chiplet dies being in communication with one another via a die-to-die interface, the computer instructions comprising:

• first and second sets of computer instructions for execution by the first and second chiplet dies, respectively, to perform a first automotive safety integrity level (ASIL) domain process on one or more ASIL input signals to produce first and second output signals, respectively, that are outputted from the first and second chiplet dies, respectively;
• a third set of computer instructions for causing a selector circuit to select one of the first and second output signals to be outputted from the automotive fault detection and recovery system to an automotive control unit input signal path based on a value of a selector signal received by the selector circuit;
• and
• a fourth set of computer instructions for monitoring the first and second chiplet dies for faults and for assigning a first value to the selector signal if the fault monitoring system detects a fault in the first chiplet die, wherein assignment of the first value to the selector signal causes the second output signal to be outputted from the automotive fault detection and recovery system by the selector circuit.

An automotive fault detection and recovery system comprising:

• at least first and second chiplet dies disposed in a system-on-a-chip (SoC) integrated circuit (IC) package and being in communication with one another via a die-to-die interface, the first and second chiplet dies comprising at least a first and second means for performing at least a first ASIL domain process on one or more ASIL input signals to produce first and second output signals, respectively;
• means for selecting one of the first and second output signals to be outputted from the automotive fault detection and recovery system to an automotive control unit input signal path based on a value of a selector signal received by the means for selecting;
• and
• means for monitoring the first and second chiplet dies and for assigning a first value to the selector signal if the means for monitoring detects a fault in the first chiplet die, wherein assignment of the first value to the selector signal causes the second output signal to be outputted from the automotive fault detection and recovery system.