| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123406240 | Including means responsive to the instantaneous change in engine speed (e.g., roughness, unstable combustion, etc.) | 7 |
| 20080302331 | ENGINE EVENT-BASED CORRECTION OF ENGINE SPEED FLUCTUATIONS - Ignition timing for a combustion engine may be controlled by determining the roughness of current engine operation, comparing the determined roughness with a control roughness to determine if the determined roughness is within a threshold limit of the control roughness, and changing the ignition timing in a subsequent fuel delivery event as a function of the difference between the determined roughness and the control roughness. Preferably, the ignition timing is changed at least when the determined roughness is not within the threshold limit, although other factors may be taken into account when changing the ignition timing. | 12-11-2008 |
| 20100031923 | Method and Apparatus for Detecting Engine Knock - A an engine management system includes a processor ( | 02-11-2010 |
| 20100212634 | DEVICE AND METHOD FOR CONTROLLING IGNITION TIMING OF INTERNAL COMBUSTION ENGINE - An engine ECU executes a program that includes the steps of: calculating (S | 08-26-2010 |
| 20100242909 | KNOCK CONTROL DEVICE FOR ENGINE - Embodiments of the invention provide that an ignition is retarded when continuously occurring knocks are detected, while an ignition is not retarded when a singly occurring knock is detected. | 09-30-2010 |
| 20110114062 | METHOD AND APPARATUS FOR CONTROLLING ENGINE TORQUE DURING INTRUSIVE TESTING - A control system and method for controlling an engine includes a control module. The control module includes an evaporation control valve module closing a canister purge valve during a system diagnostic. A torque determination module determines a torque change for an end of the system diagnostic. A torque adjustment module changes an engine torque to a changed torque corresponding to the torque change. The evaporation control valve module opens the purge valve at the end of the diagnostic. | 05-19-2011 |
| 20110253100 | CYLINDER COMBUSTION PERFORMANCE MONITORING AND CONTROL WITH COORDINATED TORQUE CONTROL - An engine control system includes a disturbance module, a torque correction module, a torque-to-spark module, and a spark correction module. The disturbance module determines a disturbance value for a past combustion stroke of a cylinder of an engine based on rotation of a crankshaft. The torque correction module selectively determines a torque correction for a future combustion stroke of the cylinder based on the disturbance value. The torque-to-spark module determines a spark correction based on the torque correction and determines an uncorrected spark timing based on a torque request. The spark correction module determines a corrected spark timing based on the uncorrected spark timing and the spark correction and generates spark during the future combustion stroke based on the corrected spark timing. | 10-20-2011 |
| 123406250 | Acceleration or deceleration responsive | 1 |
| 20100050987 | INTERNAL COMBUSTION ENGINE CONTROL DEVICE - The present invention judges whether the amount of change in the accelerator opening is larger than a reference change amount. If the amount of change in the accelerator opening is found to be larger than the reference change amount, the present invention performs setup so that a throttle valve | 03-04-2010 |
