Redundant engine shutdown system
First Claim
1. An engine control system and engine, in combination, comprising:
- at least one engine electronic control module that controls engine operation in normal operating conditions in accordance with software and includes calibrations for engine control, the engine module having a primary shut down system programmed to shut down the engine if one or more of a plurality of engine operation sensors deviates from an acceptable level; and
at least one shut down system electronic control module that is programmed to shut down the engine if one or more of the plurality of engine operation sensors deviates from the acceptable level.
1 Assignment
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Accused Products
Abstract
An engine shutdown system is provided that includes an engine control module (ECM) (12) having sensors (20, 22, 24, 26, 28, 30, 34, 36) that can activate an engine shutdown sequence. A set of redundant sensors (20′, 22′, 24′, 26′, 28′, 30′, 32′, 34′, 36′) and a redundant engine control module (RECM) (14) can also activate an engine shutdown sequence independent of the ECM. Engine operating parameters are monitored by sensors to determine if one of the engine parameters deviates from an acceptable level. If the engine control determines that a parameter has exceeded a predetermined level, an engine shutdown signal may be generated by either the ECM or RECM that may cut off the fuel supply, interrupt an ignition circuit, or activate external engine shutdown devices and may also activate alarm and message panels. A redundant engine shutdown system is also provided to disable the primary engine control unit.
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Citations
20 Claims
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1. An engine control system and engine, in combination, comprising:
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at least one engine electronic control module that controls engine operation in normal operating conditions in accordance with software and includes calibrations for engine control, the engine module having a primary shut down system programmed to shut down the engine if one or more of a plurality of engine operation sensors deviates from an acceptable level; and at least one shut down system electronic control module that is programmed to shut down the engine if one or more of the plurality of engine operation sensors deviates from the acceptable level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification