Patent ID: 11881868
Assignee: MITSUBA CORPORATION
Field: Basic communication processes (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 5:
6. A non-transitory computer-readable medium storing a disconnection detection program in a control system,
the control system comprising:
a semiconductor chip, having built therein a processing part, an A/D converter and a pull device circuit;
a wiring part, having one end connected to a terminal connected to the A/D converter; and
a sensor, connected to the other end of the wiring part and inputting a sensor signal in analog form to the terminal via the wiring part, wherein
the pull device circuit comprises a switching element, and has one end connected to ground or a power supply voltage and the other end connected between the A/D converter and the terminal,
wherein the disconnection detection program causes the processing part to execute:
processing for controlling the switching element to be in an on or off state;
processing for generating sensor information based on the sensor signal;
processing for detecting disconnection of the wiring part based on output of the A/D converter when the switching element is in the on state, wherein the disconnection of the wiring part is detected in response to the output of the A/D converter when the switching element is in the on state exceeding a first predetermined threshold or falling below a second predetermined threshold; and
processing for detecting a power fault in the sensor in response to the output of the A/D converter when the switching element is in the off state exceeding a third predetermined threshold, and detecting a ground fault in the sensor in response to the output of the A/D converter when the switching element is in the off state falling below a fourth predetermined threshold.