Abstract: In a turbocharger control system which includes fault testing circuitry which automatically senses and compares engine operating parameters of manifold pressure, exhaust temperature, engine speed, and actuator position, compares the sensed values to predetermined norms to establish the validity of the signals, in which substitutes preestablished values for the sensed signals when the sensed signal is determined to be invalid. The substituted value may be a value stored in the memory of a microprocessor used in the system or a value derived from a signal received from a different but corresponding sensor of the engine being controlled.

Abstract: An electronic control (10) for generating control, diagnostic, and fault signals for a diesel engine (12) with a turbocharger (22) and an injection pump (14). The control (10) provides an injection pump control (78), a turbocharger control (80), a fault monitor (82) and a sequencing control (84). These controllers are embodied as a stored program of a microprocessor controlled processor, timing, and memory module (228). The module (228) communicates with an input section receiving analog and discrete inputs via a serial input data line (CRUIN) and further communicates with an output section generating analog and discrete outputs via a serial output data line (CRUOUT).

Abstract: An electronic control (10) for generating control, diagnostic, and fault signals for a diesel engine (12) with a turbocharger (22) and an injection pump (14). The control (10) provides an injection pump control (78), a turbocharger control (80), a fault monitor (82) and a sequencing control (84). These controllers are embodied as a stored program of a microprocessor controlled processor, timing, and memory module (228). The module (228) communicates with an input section receiving analog and discrete inputs via a serial input data line (CRUIN) and further communicates with an output section generating analog and discrete outputs via a serial output data line (CRUOUT).