摘要:
An evaporative emissions (EVAP) control system for a vehicle includes a purge pump configured to pump fuel vapor trapped in a vapor canister to an engine of the vehicle via a vapor line when engine vacuum is less than an appropriate level for delivering fuel vapor to the engine, the fuel vapor resulting from evaporation of a liquid fuel stored in a fuel tank of the engine. The EVAP control system includes a hydrocarbon (HC) sensor disposed in the vapor line and configured to measure an amount of HC in the fuel vapor pumped by the purge pump to the engine via the vapor line. The EVAP control system also includes a controller configured to, based on the measured amount of MC, control at least one of the purge pump and a purge valve to deliver a desired amount of fuel vapor to the engine.
摘要:
A diagnostic system and method for diagnosing the performance of a particulate matter (PM) filter of an exhaust system each involve receiving, by a controller from at least one sensor, a gas component measurement of exhaust gas flowing through the exhaust system and the PM filter. The controller calculates a conversion efficiency of the gas component by the PM filter and compares the calculated conversion efficiency to a predetermined conversion efficiency threshold indicative of an expected conversion efficiency of a flow-through catalyst. The controller then determines whether the PM filter is cracked or damaged based on the comparison between the calculated conversion efficiency and the predetermined conversion efficiency threshold.
摘要:
The invention concerns a method (200) and system (100) for controlling communication replies. The method can include the steps of selecting (210) one or more recipients of a call at an originating communication unit (110), placing (212) the call to the selected recipients and sending (214) along with the placed call a no reply indicator to the recipients of the call that will automatically block a reply call from the recipients. This block may prevent the recipients from having an opportunity to place the reply call. The method may also include the step of receiving (216) an acknowledgement from one or more of the recipients that indicates that the recipients received the placed call. As an example, the call can be a dispatch call, and the recipients can be members of a predetermined dispatch group.
摘要:
An evaporative emissions (EVAP) control system for a vehicle includes a purge pump configured to pump fuel vapor to an engine of the vehicle via a vapor line and a purge valve. The system includes a hydrocarbon (HC) sensor disposed in the vapor line and configured to measure an amount of HC in the fuel vapor pumped by the purge pump to the engine via the vapor line. A controller is configured to: detect an imminent cold start of the engine and, in response to the detecting, perform the cold start of the engine by controlling at least one of the purge pump and the purge valve, based on the measured amount of HC, to deliver a desired amount of fuel vapor to the engine, which decreases HC emissions by the engine.
摘要:
A method (10) and system (200, 400, or 500) of call reverse can include initiating (12) a call by an originating party (204) to a terminating party (208), comparing (14) rate plans, and automatically reversing (26) the call if a rate plan for the terminating party is currently more economical than a rate plan for the originating party. The method can compare (22) rate plans at a server (206) having rate plan information for the parties. Alternatively, the method can send (16) rate plan information for the originating to the terminating party and compare rate plans at the terminating party. The method can pre-store (20) rate plan information for the originating party at a memory at the terminating party. The method can also use (24) Caller ID to detect a call from the originating party and compare pre-stored rate plan information for the originating party stored at the terminating party.
摘要:
A method and corresponding system for optimizing performance of an internal combustion engine. The present invention senses gases emitted from engine combustion chambers via a first gas sensor and senses gases emitted from said engine combustion chambers subsequent to said gases passing through an engine catalytic converter via a second gas sensor. The temperatures of said first and second gas sensors are then sensed through data output from first and second gas sensors and temperature sensors. The first and second gas sensors are linearized in response to the sensed temperatures of the first and second gas sensors. The fuel level input into the engine combustion chambers is adjusted in response to linearizing of the first and second gas sensors.
摘要:
A method of feedback control for an electronic fuel injection system in an internal combustion engine includes the steps of calculating a front O.sub.2 sensor switching voltage threshold based on a signal from a front O.sub.2 sensor upstream of a catalyst in an exhaust system for the engine and from a rear O.sub.2 sensor downstream of the catalyst, comparing a voltage output of the front O.sub.2 sensor to the calculated front O.sub.2 sensor switching voltage threshold to determine if a fuel/air ratio of the engine is rich or lean, and decreasing or increasing an amount of fuel to the engine by fuel injectors of the electronic fuel injection system if the fuel/air ratio is determined rich or lean, respectively.
摘要:
In a fuel control system for an engine equipped with fuel injectors, a method where the fuel injector is fired to fuel its cylinder, relative to the cylinder's valve events, more than once per cycle if a throttle transient has occurred and caused the original firing of the fuel injector to be less than the fuel amount now required by the new engine operating conditions.
摘要:
Apparatus is presented for slicing a large round bale into two parts prior to discharge from the baler. Slicing is accomplished by inserting a knife blade into the bale forming chamber during or subsequent to the tying-off event while the bale rotates. The knife is inserted between the belts which encircle the periphery of the baling chamber. The butt end of a more than two foot long knife blade is secured to the center of a T-shaped crossbar. One end of the crossbar is hinge mounted to the top rear midpoint of the baler. The second end of the crossbar is pivotally mounted to the piston shaft of a hydraulic cylinder. The base end of the hydraulic cylinder is pivotally mounted to the top front midpoint of the baler. In the unactivated state of the cylinder wherein the shaft is in its extended position, the top edge of the knife blade will clear the lower edge of the top front roller of the baling chamber. Activation of the cylinder to draw the shaft inward serves to rotate the sharp edge of the blade against the rotating bale. When the shaft is fully drawn into the cylinder, the tip of the blade reaches the center of the bale.
摘要:
A diagnostic system and method for diagnosing the performance of a particulate matter (PM) filter of an exhaust system each involve receiving, by a controller from at least one sensor, a gas component measurement of exhaust gas flowing through the exhaust system and the PM filter. The controller calculates a conversion efficiency of the gas component by the PM filter and compares the calculated conversion efficiency to a predetermined conversion efficiency threshold indicative of an expected conversion efficiency of a flow-through catalyst. The controller then determines whether the PM filter is cracked or damaged based on the comparison between the calculated conversion efficiency and the predetermined conversion efficiency threshold.