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Kortge
Harald Kortge, Wurzburg DE
| Patent application number | Description | Published |
|---|---|---|
| 20090234569 | Routing Method For Calculating A Route - A routing method for calculating a route between a first route endpoint ( | 09-17-2009 |
James M. Kortge, Ferndale, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20090170539 | PREVENTING REPLAY-TYPE ATTACKS ON A VEHICLE COMMUNICATIONS SYSTEM - A method and system for preventing replay-type attacks on a vehicle communications system that sends short message service (SMS) messages between a call center and a fleet of vehicles. The method uses separate sequence counters maintained at the call center and at each of the vehicles in the fleet to help prevent or at least minimize the effects of unauthorized third party interference; such as replay-type attacks. Each wireless message is embedded with a sequence counter that is provided by the sender and is compared by the recipient with a separate sequence counter for purposes of validation. Some optional features that can be used in conjunction with the sequence counters include a tolerance window feature, a consecutive message feature, and a proximity feature, to name but a few. | 07-02-2009 |
Jerry W. Kortge, Clarkston, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20080281453 | METHODS AND SYSTEMS TO IDENTIFY CAM PHASER HARDWARE DEGRADATION - A cam phaser diagnostic system is provided. The system includes: a first sample variance module that computes a first variance based on a desired cam phaser position. A second sample variance module computes a second variance based on a measured cam phaser position. An evaluation module diagnoses faulty cam phaser operation based on the first variance and the second variance. | 11-13-2008 |
| 20090145384 | ADAPTER PHASOR CONTROL HOLD DUTY CYCLE SYSTEM FOR AN ENGINE - A camshaft phasor control system for an engine includes a camshaft position sensor that generates a current camshaft position signal based on position of a camshaft. A first comparator generates a camshaft position signal based on the current camshaft position signal and a crankshaft position. The second comparator generates an error signal based on the relative camshaft position signal and a commanded camshaft position signal. A control module determines a current control hold duty cycle (CHDC) for a camshaft phasor based on an engine state parameter. The control module also generates a correction signal based on the error signal, adjusts the current CHDC based on the correction signal to generate a commanded CHDC signal, and generates another CHDC based on the commanded CHDC signal. | 06-11-2009 |