| Patent application number | Description | Published |
|---|
| 20080229806 | KNOCK SYSTEM WITH DETECTION ZONES - A knock detection module for an engine comprises a statistics storage module and a processing module. The statistics storage module stores M times N vibration profiles corresponding to M zones of operation of the engine and N cylinders of the engine, wherein M and N are integers greater than one. The processing module determines in which one of the M zones the engine is operating and determines whether knock has occurred for one of the N cylinders by comparing measured vibration data with a selected one of the vibration profiles corresponding to the one of the M zones and the one of the N cylinders. | 09-25-2008 |
| 20090276147 | ENGINE KNOCK DIAGNOSTIC - A knock diagnostic module having a knock module that increments a sample count when a cylinder firing signal corresponding to a first cylinder is received and selectively increments a knock count based on a knock detection signal that corresponds to the cylinder firing signal of the first cylinder A knock analysis module analyzes the knock count of the first cylinder when the sample count of the first cylinder reaches a predetermined value and selectively generates an excessive knock signal when the knock count exceeds a predetermined threshold. A remedial action module selectively performs a remedial action based on the excessive knock signal. | 11-05-2009 |
| 20090283070 | MANAGING LEAN AIR/FUEL TRANSIENTS IN COORDINATED TORQUE CONTROL - An engine control system includes an air control module, a spark control module, a torque control module, a transient detection module, and a launch torque module. The air control module controls a throttle valve of an engine based on a commanded predicted torque. The spark control module controls spark advance of the engine based on a commanded immediate torque. The torque control module increases the commanded predicted torque when a catalyst light-off (CLO) mode is active, and increases the commanded immediate torque when a driver actuates an accelerator input. The transient detection module generates a lean transient signal when an air per cylinder increase is detected while the CLO mode is active. The launch torque module generates a torque offset signal based on the lean transient signal. The torque control module increases the commanded immediate torque based on the torque offset signal. | 11-19-2009 |
| 20100004846 | IGNITION COIL MODULE FUSE DIAGNOSTIC - A control system comprising an ignition fuse diagnostic module that determines a state of an ignition fuse associated with an ignition coil of an engine cylinder, and a fuel control module that selectively operates a fuel injector associated with the engine cylinder based on the state of the ignition fuse. A method comprising determining a state of an ignition fuse associated with an ignition coil of an engine cylinder, and selectively operating a fuel injector associated with the engine cylinder based on the state of the ignition fuse. | 01-07-2010 |
| 20100168991 | DIAGNOSTIC SYSTEMS AND METHODS FOR ENGINE KNOCK SENSORS - An engine control system includes a digital signal processing (DSP) module that generates a fast Fourier transform (FFT) of an engine knock signal generated by an engine knock sensor. An intensity determination module determines an engine knock intensity based on one of a maximum of and an average of the FFT. A status determination module determines a status of the engine knock sensor based on the engine knock intensity, a plurality of predetermined knock intensity thresholds, and a rotational speed of an engine crankshaft. | 07-01-2010 |
| Patent application number | Description | Published |
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| 20090327838 | MEMORY SYSTEM AND OPERATING METHOD FOR IT - A memory system includes a writable data memory and means for recognizing an error in a data word read out from the data memory, correcting the error, and storing the corrected data word at a new address in a free area of the data memory. | 12-31-2009 |
| 20100174448 | Method and device for operating a control unit - A control unit has two pairs of execution units, the two execution units of each pair redundantly processing the same program, and the output signals of each execution unit of one pair being compared to one another by a respective comparing unit, the respective comparing unit outputting an error signal when a difference in the output signals of the execution units of one pair occurs. A first pair of execution units are shut down when the error signal occurs for the first pair, and the control unit continues control operation using the second pair of execution units, and a pre-warning signal is output to the driver. | 07-08-2010 |
| 20100281485 | Method For Changing Over A System Having Multiple Execution Units - A system having multiple execution units and a method for its changeover are provided. The system having multiple execution units has at least two execution units, and may be changed over between a performance operating mode, in which the execution units execute different programs, and a comparison operating mode, in which the execution units execute the same program. The system has a scheduler, which is called by an execution unit to ascertain the next program to be executed. The remaining execution units are prompted to also call the scheduler if the program ascertained by the first called scheduler is to be executed in a comparison operating mode. A changeover unit changes over the system having multiple execution units from the performance operating mode into the comparison operating mode if the program to be executed ascertained by the last called scheduler is to be executed in the comparison operating mode, this ascertained program to be executed being executed as the program having the highest priority by all execution units after the changeover of the system into the comparison operating mode. | 11-04-2010 |
