| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123644000 | Current or voltage sensing in coil primary | 8 |
| 20080202485 | Controller and Method for Controlling an Ignition Coil - A controller for an ignition coil, the controller comprising means for determining a rate of change of current flow through a primary winding of the ignition coil; and means for switching off current flow through the primary winding of the ignition coil as a function of the rate of change of current. | 08-28-2008 |
| 20090139505 | IGNITER SYSTEM - A coil failure detection circuit detects a rise of a collector current of an IGBT and a timer circuit measures the length of a rise period. If the rise is not a normal one, an electronic control unit judges that a coil failure has occurred. The electronic control unit turns off the IGBT to prevent misfires and stops a flow of fuel gas to a combustion chamber to prevent melting or deterioration of a catalyst. | 06-04-2009 |
| 20090183719 | INTERNAL COMBUSTION ENGINE IGNITION DEVICE - An internal combustion engine ignition device is provided in which an ECU ( | 07-23-2009 |
| 20090241924 | Circuit configuration for switching current flow through an ignition coil - A circuit configuration for switching current flow through an ignition coil, in which the switching process is able to be executed by at least one first transistor that is controllable by a control signal which is able to be supplied via a control signal input of the circuit configuration, and the control signal input is connected to at least one variable resistor. | 10-01-2009 |
| 20120186569 | INTERNAL COMBUSTION ENGINE IGNITION SYSTEM - According to one embodiment, there is provided an internal combustion engine ignition system, including: a spark coil having primary and secondary coils, the spark coil being configured to apply a high voltage to a spark plug from the secondary coil; a power transistor configured to perform an intermittent control on a current flowing through the primary current for a given time period, based on an inputted multipulse; a DC-DC converter electrically connected to the primary coil and configured to control a bias voltage applied to the primary coil; and a converter control circuit configured to control the DC-DC converter while switching a control mode to either a feedback mode in which the bias voltage is increased or decreased based on a detection value of the bias voltage, or a forced voltage increase mode in which the bias voltage is forcedly increased. | 07-26-2012 |
| 20120255530 | IGNITION SYSTEM CONTROL METHOD AND SYSTEM - The present invention relates to a method for monitoring an ignition system, wherein the ignition system comprises a charge coil (L | 10-11-2012 |
| 20120325190 | IGNITION METHOD AND IGNITION SYSTEM THEREFOR - An ignition system and method for internal combustion engines with which a reliable triggering of an ignition spark is provided with control of the ignition process over the entire firing duration, wherein an excessive stress on the ignition coil and spark plug is avoided. By detecting the primary current and evaluating it in a control loop, the state of the secondary circuit can be detected reliably. In the case of a disturbance, for example at strongly spent spark plug, the ignition current is immediately readjusted via the control circuit in order to avoid a disruption in spark. This ignition current control thus reacts automatically to sources of defect on the secondary side current. | 12-27-2012 |
| 20140137846 | IGNITION METHOD FOR AN INTERNAL COMBUSTION ENGINE AND AN IGNITION DEVICE OPERATED ACCORDINGLY - The detection of the switching state of a stop switch at a switch terminal of an ignition device for an internal combustion engine is provided, in which an ignition pulse for controlling an electronic ignition switch is generated and a first power storage device is discharged via an ignition coil and during this discharge a voltage signal having negative and positive voltage half waves is generated, which is used for synchronizing a sampling, representing the switch state of the stop switch, particularly its closed position, of a voltage value at the switch terminal. | 05-22-2014 |
