Engine monitoring
First Claim
1. A vehicle monitoring device comprising:
- a processor programmed to simulate the operation of an internal combustion engine or vehicle both at a first level and a second level;
an input connection to the processor adapted to connect to an on board diagnostics port (OBD) of the engine;
means, including a processor circuit, configured and arranged to interrogate the OBD toacquire data from signals identified by first parameter indicators (PID) as required for the processor to be able to create and run a first model of the engine or vehicle operation, andacquire in real time available signals identified by second PIDs that are different than the first PIDs and not required for the processor to create and run the first model; and
processing means, including a processor circuit, configured and arranged to analyze and compare the signals identified by the second PIDs with signals obtained or derived from the first model of engine operation, and based on the analyzing and comparing, identify at least one of the second PIDs to the processor, the processor being configured and arranged to use the at least one of the identified second PIDs to simulate the engine or vehicle operation at the second level.
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Accused Products
Abstract
A method and device for creating an accurate simulation or model of the performance of a vehicle or an internal combustion engine in accordance with the invention comprises accessing the engine on-board diagnostic port (OBD), reading data from the desired industry standard parameter indicators (PID), using these data to produce a basic simulation of the engine operating characteristics, accessing and reading non-industry standard PIDs and using the output from the basic simulation in order to identify the non-industry standard PIDs with a high degree of certainty. As it may not be possible to identify some or all of the required non-industry standard PIDs or their scale due to timing delays or coding, an additional feature of the invention is to prompt a driver of a vehicle to drive the vehicle in a certain way or to perform a certain operation of the engine in order to trigger an event which will assist in identifying the missing non-industry standard PID(s) or will increase the degree of correlation or certainty in identifying the function or the scale of the said non-industry standard PID.
43 Citations
22 Claims
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1. A vehicle monitoring device comprising:
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a processor programmed to simulate the operation of an internal combustion engine or vehicle both at a first level and a second level; an input connection to the processor adapted to connect to an on board diagnostics port (OBD) of the engine; means, including a processor circuit, configured and arranged to interrogate the OBD to acquire data from signals identified by first parameter indicators (PID) as required for the processor to be able to create and run a first model of the engine or vehicle operation, and acquire in real time available signals identified by second PIDs that are different than the first PIDs and not required for the processor to create and run the first model; and processing means, including a processor circuit, configured and arranged to analyze and compare the signals identified by the second PIDs with signals obtained or derived from the first model of engine operation, and based on the analyzing and comparing, identify at least one of the second PIDs to the processor, the processor being configured and arranged to use the at least one of the identified second PIDs to simulate the engine or vehicle operation at the second level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for creating an accurate simulation or model of the performance of an internal combustion engine comprising the steps of:
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accessing an on-board diagnostic port (OBD) for the engine, reading, from the OBD port, data from first parameter indicators (PID) according to a first standard, using the read data to produce a basic simulation of engine or vehicle operation, accessing and reading signals, from the OBD port, from second PIDs according to a second standard that is different than the first standard, and using data from the basic simulation to identify at least one of the signals for the second PIDs to run an accurate simulation of the engine or vehicle operation. - View Dependent Claims (16, 17, 18, 19, 20)
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21. An apparatus comprising:
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an input circuit connection configured and arranged to connect to an on board diagnostics (OBD) port of a vehicle; and a processor circuit connected to the input circuit connection for communicating with the OBD port and configured and arranged to simulate the operation of the vehicle by interrogating the OBD to acquire data from signals identified by first parameter indicators (PID) required to create and run a first model of the vehicle operation, acquiring in real time available signals identified by second PIDs that are different than the first PIDs, analyzing and comparing the signals identified by the second PIDs with signals obtained or derived from the first model of engine operation, and based on the analyzing and comparing, identifying and using at least one of the second PIDs to simulate the vehicle operation. - View Dependent Claims (22)
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Specification