Control method and system for internal combustion engine
First Claim
1. A control system for an internal combustion engine having an air-intake shut-off valve, the system comprising a valve controller unit (VCU) including a receiver adapted to receive a sensor signal, a logic device capable of actuating the shut-off valve for permitting or preventing air flow to the engine, upon the VCU receiving a triggering sensor signal, and a data link for transmitting an outbound wireless signal from the VCU,wherein the VCU causes the data link to transmit the outbound wireless signal upon the VCU receiving the triggering sensor signal, andwherein the outbound wireless signal comprises either one or both of:
- another triggering sensor signal for another VCU associated with another internal combustion engine to actuate another air-intake shut-off valve associated with the another internal combustion engine;
orelectronic data for audio or visual display of a message by a monitoring station or a mobile communication device that the engine is shut down.
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Accused Products
Abstract
The invention relates to a control method and system for an internal combustion engine incorporating an engine shut-off valve, and in particular an air intake shut-off valve for a diesel or gas-fueled engine. The control system comprises a valve controller unit including a receiver capable of receiving sensor signals, and being in communication with the shut-off valve for permitting or preventing air flow in the shut-off valve upon receiving a triggering sensor signal.
36 Citations
23 Claims
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1. A control system for an internal combustion engine having an air-intake shut-off valve, the system comprising a valve controller unit (VCU) including a receiver adapted to receive a sensor signal, a logic device capable of actuating the shut-off valve for permitting or preventing air flow to the engine, upon the VCU receiving a triggering sensor signal, and a data link for transmitting an outbound wireless signal from the VCU,
wherein the VCU causes the data link to transmit the outbound wireless signal upon the VCU receiving the triggering sensor signal, and wherein the outbound wireless signal comprises either one or both of: -
another triggering sensor signal for another VCU associated with another internal combustion engine to actuate another air-intake shut-off valve associated with the another internal combustion engine;
orelectronic data for audio or visual display of a message by a monitoring station or a mobile communication device that the engine is shut down. - View Dependent Claims (2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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8. A system for controlling at least one vehicle having a control system for an internal combustion engine having a shut-off valve in a worksite, divided into a plurality of zones, comprising a first zone transmitter associated with a first zone, and a second zone transmitter associated with a second zone, wherein the first zone transmitter does not reach the second zone, and the second zone transmitter does not reach the first zone, except for any overlapping areas, and wherein the control system of the at least one vehicle is responsive to signals from each zone transmitter to activate the air-intake shutoff valve.
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9. A method of controlling at least one vehicle having a control system for an internal combustion engine having a shut-off valve in a worksite divided into a plurality of zones, comprising the steps of:
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(a) providing a plurality of zone transmitters, each associated with a zone, and each adapted to send a valve-shutoff signal to a control system within its zone; and (b) activating one or more zone transmitters for a selected zone or zones.
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23. A control system for an internal combustion engine having an air-intake shut-off valve, the system comprising a valve controller unit (VCU) including a receiver adapted to receive a sensor signal, and a logic device capable of actuating the shut-off valve for permitting or preventing air flow to the engine, upon the VCU receiving a triggering sensor signal, wherein the VCU is responsive to a wireless signal transmitted by a zone transmitter in a system comprising a worksite having two or more zone transmitters, each having a coverage zone within the worksite which is not coterminous with the coverage zone of any other zone transmitter.
Specification