| Patent Number |
Title Of Patent |
Date Issued |
| 6913006 |
High-frequency ignition system for an internal combustion engine |
July 5, 2005 |
| A high-frequency ignition system has a waveguide and a high-frequency amplifier. In this context, the high-frequency amplifier is situated at a first end of the waveguide. An ignition gap is situated at a second end of the waveguide. Additionally provided is a positive-feedback element, |
| 6567476 |
Data synchronisation process, and transmission and reception interfaces |
May 20, 2003 |
| The method of transmitting data as a sequence of high bits and low bits over a transmission line from a transmitting device to a receiving device includes transmitting synchronization signals over the transmission line and transmitting one and only one high bit or one and only one low bi |
| 6357426 |
Ignition device for a high-frequency ignition |
March 19, 2002 |
| Proposed is an igniting device having a radio frequency resonator. Moreover, the resonator can be designed as a strip waveguide on a printed-circuit board. Several resonators can be connected in a pattern to the RF source via p-i-n diodes. At the cold end, the resonator is electrical |
| 6018202 |
Ignition output stage |
January 25, 2000 |
| An ignition output stage is described, in particular for an internal combustion engine, in which the output stage is constructed as a two- or three-stage Darlington and provided either with an internal single-stage or an external multiple- stage clamping via a Zener diode for protection |
| 5996398 |
Device for knock detection in internal combustion engine |
December 7, 1999 |
| A device for detecting a knocking in an internal combustion engine has an evaluating facility, a knock sensor for sensing knocking of an internal combustion engine and producing output signals of the knocking sensor, an evaluation facility for obtaining the filtered signals from the filt |
| 5968101 |
Device for recording, storing, and outputting of data of a control unit in a motor vehicle |
October 19, 1999 |
| A device for the recording, storing and outputting of data of a control unit in a motor vehicle, besides the operating time of the control unit, makes it possible for other data to be acquired and stored as well, so that information will be provided regarding the probability of failure o |
| 5675069 |
Circuit for processing a signal of a measuring sensor |
October 7, 1997 |
| The invention is directed to a circuit for processing a signal (UL) of a lambda probe having a probe signal terminal on which the signal (UL) is outputted and a probe ground terminal. The circuit includes a voltage source having a plus pole and having a minus pole connected to the probe |
| 5438268 |
Ignition system for detecting arc voltage of spark plug |
August 1, 1995 |
| A circuit arrangement for ignition systems for detecting an arc voltage at a spark plug has an ignition coil having a primary side on which the arc voltage is transformed and also having a primary winding, an ignition switch located in series with the primary winding of the ignition coil |
| 5334938 |
Method of monitoring an internal combustion engine ignition system by measuring spark duration o |
August 2, 1994 |
| Monitoring apparatus is provided for the ignition system of an internal combustion engine such as is provided in a motor vehicle, which is capable of detecting a variety of malfunctions of ignition under a variety of engine operating ranges, so that the catalyst used in the exhaust syste |
| 5247446 |
Control unit with an interface for motor vehicles that is capable of being programmed with new c |
September 21, 1993 |
| A digital control unit, in particular an ignition and/or injection control unit for motor vehicles, is provided. The control unit has a microcomputer (10) and a permanently connected main storage (12) containing control data and operating programs. This main storage unit (12) is designed |
| 5201293 |
Method of monitoring the operation of an internal combustion engine |
April 13, 1993 |
| A method of monitoring the operation of an internal combustion engine, such as is usable in a motor vehicle, combines the recognition of ignition failures with recognition of combustion failures. In one embodiment combustion failures are detected by the faltering of torque delivered by |
| 4928660 |
Protective case for combination ignition coil and electronic control |
May 29, 1990 |
| A protective case (13) for a vehicle ignition system covers both the ignition coil (5), an electronic control device (6), and the terminals (11) and connecting conductors (12) therebetween. The preferred material is plastic, with an electromagnetically conducting coating for screening |
| 4918389 |
Detecting misfiring in spark ignition engines |
April 17, 1990 |
| Misfiring in internal combustion engines is detected by detecting the voltage induced in the primary winding of the ignition coil, and comparing it to a reference voltage which represents normal firing. The reference voltage preferably has a predetermined magnitude and a predetermined |
| 4901697 |
Device for controlling an internal combustion engine |
February 20, 1990 |
| A device for controlling an internal combustion engine of a motor vehicle and comprising a transmitter disk which rotates with a shaft of the internal combustion engine relative an opposite stationary receiving element, the transmitter disk being provided at its circumference with a |
| 4886037 |
Ignition system for an internal combustion engine |
December 12, 1989 |
| To prevent spurious sparks from arising at a spark plug (6) connected to the secondary (3) of an ignition coil upon sudden current rise through the primary (2) when a switching transistor (4) serially connected with the primary becomes conductive, the primary (2) of the ignition coil is |
| 4848298 |
Device for controlling internal combustion engine |
July 18, 1989 |
| A device for controlling an internal combustion engine of a motor vehicle comprises a stationary pickup element provided with a control circuit for ignition or the like of a motor vehicle, and a transducer wheel arranged to rotate with the shaft of the engine of the motor vehicle and |
| 4744343 |
Device for controlling an internal combustion engine |
May 17, 1988 |
| A device for controlling ignition or fuel injection and the like of an internal combustion engine includes an angular position sensor of a shaft of the engine. The sensor is in the form of a disc rotating together with the shaft and being provided on its periphery with as many radially |
| 4726338 |
Device for controlling internal combustion engines |
February 23, 1988 |
| A device for controlling an internal combustion engine of a motor vehicle comprises a sensor disk rotating with the shaft of the engine and a stationary signal receiving element scanning signals from the sensor disk. Sensing elements are positioned on the sensor disk. The number of these |
| 4696002 |
Resetting circuit for microprocessors |
September 22, 1987 |
| A reset circuit is suggested for a microprocessor with which the microprocessor is reset, if the predetermined program ranges are left. During each cyclical input signal it is determined whether an output signal appears after a predetermined time. If this is not the case the reset pr |
| 4532437 |
Speed-dependent signal generator |
July 30, 1985 |
| An operational amplifier is used as a threshold switch and an inductive generator that provides a wave used for timing operation of the threshold switch also feeds a circuit that produces a reference current corresponding to the average absolute magnitude of the generator voltage, wh |
| 4475526 |
Apparatus for generating a signal train dependent on rotary speed |
October 9, 1984 |
| An apparatus is proposed for generating a signal train dependent on rotary speed from the periodic voltage of an inductive transducer arrangement, especially for controlling ignition systems in internal combustion engines. The transducer voltage is delivered to a threshold stage. In |
| 4430709 |
Apparatus for safeguarding data entered into a microprocessor |
February 7, 1984 |
| For any given program entered into an EPROM in a microprocessor, read-out from certain storage locations or cells in the EPROM is prevented by transmission gates connected into externally accessible data lines. Transmission through the transmission gates is blocked by the arithmetic |
| 4391262 |
Ignition system for an internal combustion engine |
July 5, 1983 |
| To provide sufficient ON-time to store adequate electromagnetic energy in an ignition coil (5, 6), even under high-speed engine operations, in which the ON time of an electronic ignition breaker switch (7, 8) and the OFF or ignition instant thereof is determined by a signal (U16) derived |
| 4351309 |
Safety gap for an ignition system in an internal combustion engine |
September 28, 1982 |
| To protect the ignition system against high over voltages upon removal of a load in the high voltage circuit, represented by the spark gap of a spark plug, and a distribution gap of a distributor, an electrically conductive terminal element, such as a flag, a spring biased tab, or a push |
| 4275340 |
Control circuit for a final control element, in particular an electric motor |
June 23, 1981 |
| In order to control the motion of a final control element, for example a servomotor used in the steering gear or the cruise control of a motor vehicle, and to provide for rapid dynamic braking of the servomotor by short-circuiting, the invention provides a bridge circuit consisting of |
| 4237835 |
Speed-dependent ignition timing system for internal combustion engines |
December 9, 1980 |
| A speed discriminator circuit furnishes an upper speed range signal if the engine speed is above a preselected speed. When the engine speed is above the preselected speed, the electronic switch controlling the current flow through the primary winding of the ignition coil is switched to t |
| 4231348 |
Ignition system with ignition current and minimum spark duration controls |
November 4, 1980 |
| To prevent misfires, the current through an ignition coil is increased in response to an error signal indicating that the actual spark duration was less than a predetermined minimum spark duration. At the start of the spark, a capacitor is discharged at a known rate. The time required fo |
| 4217528 |
Apparatus for preventing malfunction in a circuit controlling an electrical component maintainin |
August 12, 1980 |
| The direction of current through a motor is controlled by a bridge circuit having four transistors each constituting one arm of the bridge. A first and second transistor receive the control signal for allowing current flow in the first and second direction respectively. To prevent the em |
| 4146857 |
Ignition coil for engine ignition system |
March 27, 1979 |
| The rod-shaped core portion carrying the high-voltage secondary winding is separated from the U-shaped core portion carrying the primary winding by an insulating partition integral with an insulating casing that both provides galvanic separation between the primary and secondary parts of |
