摘要:
A system or method for controlling a multiple cylinder internal combustion engine operable in a reduced displacement mode with at least one valve or cylinder selectively deactivated include monitoring valve operation by analyzing camshaft position to detect valve operation inconsistent with a current cylinder state (activated or deactivated) and controlling the engine in response to detecting the inconsistent operation. The camshaft position may be used to produce a surrogate signal indicative of intake/exhaust valve lift generated using camshaft sensor tooth deviation relative to an expected or reference tooth position for a corresponding crankshaft position and compared to a corresponding threshold. The surrogate signal indicative of valve lift may also be generated by pattern matching or correlation of one or more reference tooth position patterns to a measured or inferred tooth position pattern.
摘要:
A computer-implemented method of gathering data includes querying, via a vehicle computing system, a plurality of weather sensors included with a vehicle and in communication with a vehicle network. The method also includes determining whether or not appropriate conditions exist for storage of data from the sensor, for each of the sensors. Additionally, the method includes storing the data from the sensor if appropriate conditions exist. Finally, the method includes sending, from the vehicle computing system to a remote network, data from one or more queried sensors and current GPS coordinates of the vehicle.
摘要:
A system or method for controlling a multiple cylinder internal combustion engine operable in a reduced displacement mode with at least one valve or cylinder selectively deactivated include monitoring valve operation by analyzing camshaft position to detect valve operation inconsistent with a current cylinder state (activated or deactivated) and controlling the engine in response to detecting the inconsistent operation. The camshaft position may be used to produce a surrogate signal indicative of intake/exhaust valve lift generated using camshaft sensor tooth deviation relative to an expected or reference tooth position for a corresponding crankshaft position and compared to a corresponding threshold. The surrogate signal indicative of valve lift may also be generated by pattern matching or correlation of one or more reference tooth position patterns to a measured or inferred tooth position pattern.
摘要:
A system (12) and method for determining the charged air mass in a cylinder (14) of an internal combustion engine (10) are provided. The system (12) includes an electronic control unit (ECU) (58) configured to determine a temperature of the combination of charged air and recirculated exhaust gas inducted into the cylinder (14). The ECU (58) is further configured to determine a total mass flow rate of the combination of inducted air and recirculated exhaust gas based on a pressure in an intake manifold (22) of the engine (10) and the previously determined temperature. Finally, the ECU (58) is configured to determine the mass of charged air in the cylinder (14) from the total mass flow rate.
摘要:
A system for providing weather conditions includes a server in communication with a weather data provision service. The server includes a middleware application operable to process weather data requests. The system also includes a gps module, and at least one component control system, operable to adjust at least one parameter associated with at least one vehicle component. Finally, the illustrative system includes a vehicle computing system, in communication with the GPS module, the at least one component control system, and the server. In response to a request for data from the component control system, the vehicle computing system passes GPS data to the server, including the request for data, and the vehicle computing system responsively receives the requested data from the server. The vehicle computing system relays the received data to the component control system that requested the data.
摘要:
A system or method for controlling a multiple cylinder internal combustion engine operable in a reduced displacement mode with at least one valve or cylinder selectively deactivated include monitoring valve operation by analyzing camshaft position to detect valve operation inconsistent with a current cylinder state (activated or deactivated) and controlling the engine in response to detecting the inconsistent operation. The camshaft position may be used to produce a surrogate signal indicative of intake/exhaust valve lift generated using camshaft sensor tooth deviation relative to an expected or reference tooth position for a corresponding crankshaft position and compared to a corresponding threshold. The surrogate signal indicative of valve lift may also be generated by pattern matching or correlation of one or more reference tooth position patterns to a measured or inferred tooth position pattern.
摘要:
A computer-implemented method includes requesting weather data from a remote location. The illustrative embodiment further includes determining if one or more vehicle systems should be adjusted, based at least in part on the requested weather data. The illustrative embodiment additionally includes adjusting one or more vehicle systems contingent at least in part on the determining. The illustrative embodiment further includes repeating the determining and adjusting until no weather data remains for processing.
摘要:
A computer-implemented method includes requesting weather data from a remote location. The illustrative embodiment further includes determining if one or more vehicle systems should be adjusted, based at least in part on the requested weather data. The illustrative embodiment additionally includes adjusting one or more vehicle systems contingent at least in part on the determining. The illustrative embodiment further includes repeating the determining and adjusting until no weather data remains for processing.
摘要:
A system for providing weather conditions includes a server in communication with a weather data provision service. The server includes a middleware application operable to process weather data requests. The system also includes a gps module, and at least one component control system, operable to adjust at least one parameter associated with at least one vehicle component. Finally, the illustrative system includes a vehicle computing system, in communication with the GPS module, the at least one component control system, and the server. In response to a request for data from the component control system, the vehicle computing system passes GPS data to the server, including the request for data, and the vehicle computing system responsively receives the requested data from the server. The vehicle computing system relays the received data to the component control system that requested the data.
摘要:
Systems and methods are described, including one example method of controlling an engine having a cylinder with at least one valve operated by a variable valve mechanism (VVM) having a sensor coupled to the valve, the method comprising: adjusting at least one operating parameter in response to an indication of detonation of a combustible mixture in the cylinder, the indication based on the sensor coupled to the valve.