EP0972134A1 - Device for regulating the flow of electricity through a consumer - Google Patents
Device for regulating the flow of electricity through a consumerInfo
- Publication number
- EP0972134A1 EP0972134A1 EP98925406A EP98925406A EP0972134A1 EP 0972134 A1 EP0972134 A1 EP 0972134A1 EP 98925406 A EP98925406 A EP 98925406A EP 98925406 A EP98925406 A EP 98925406A EP 0972134 A1 EP0972134 A1 EP 0972134A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- measuring
- computing unit
- line
- consumer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
- F02P3/04—Layout of circuits
- F02P3/05—Layout of circuits for control of the magnitude of the current in the ignition coil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
- F02P3/04—Layout of circuits
- F02P3/05—Layout of circuits for control of the magnitude of the current in the ignition coil
- F02P3/051—Opening or closing the primary coil circuit with semiconductor devices
- F02P3/053—Opening or closing the primary coil circuit with semiconductor devices using digital techniques
Definitions
- the invention relates to a device for regulating the current flow according to the preamble of claims 1 and 2.
- DE 39 08 558 discloses a signal transmission system in which an analog signal and a digital signal are transmitted from a transmitter to a receiver via a data line. The analog and digital signals are evaluated independently of each other at the receiver.
- DE 38 26 663 AI discloses a method and a circuit for the simultaneous transmission of operating data, in which operating data and voice signals are transmitted via a line.
- the peak values of the operating data are selected to be greater than the maximum peak values of the voice signals so that the signals can be mixed and the operating data can be determined again from the voice signal at the receiving location using a comparison voltage.
- the voice signal is obtained from the mixed signal by subtracting the separated operating data.
- DE 195 11 140 AI discloses a device for serial data exchange between two stations via a common data transmission line.
- the first station recognizes the different bit states on the data line due to different voltage levels.
- the second station recognizes the different bit states on the data transmission line due to the presence or absence of a specific current flow.
- the voltage levels are evaluated differently by the stations, so that simultaneous data transmission in both directions is possible.
- the object of the invention is to provide a simply constructed device for regulating the current flow through a device
- FIG. 1 shows a device for regulating the current flow
- FIG. 2 shows a voltage profile on the measuring line
- FIG. 3 shows a current profile on the measuring line
- the invention is described below using the example of a current control for a consumer in a motor vehicle.
- application of the invention is not restricted to this exemplary embodiment, but can be applied to any circuit arrangement.
- FIG. 1 shows an electronic circuit arrangement for regulating the current flow through a primary coil 1, which represents a consumer.
- the primary coil 1 is connected to an input via an input line 18 with a battery 17.
- Ignition line 19 is guided to a spark plug 3, which in turn is connected to ground with its output.
- the spark plug 3 is arranged in the combustion chamber of an internal combustion engine.
- the primary coil 1 is connected to the output via an output line 20 to the collector terminal C of a first transistor 4.
- the emitter terminal E of the transistor 4 leads via a measuring line 21 to a first measuring resistor 5, which is connected to ground.
- the input of a voltage-dependent current source 8 is connected to the measuring line 21, the output of which is connected to an output line 9.
- the measuring line 21 is also connected to a first input 22 of an operational amplifier 6.
- the second input 23 of the operational amplifier 6 is connected to a reference voltage source 24, which preferably outputs a constant voltage.
- the output 26 of the operational amplifier 6 is connected to the base connection B of a second transistor 7, the emitter connection E of which is connected to ground and the collector connection C of which is connected to an output line 9.
- the output line 9 is connected to a predetermined potential, in this case +5 V, via a second measuring resistor 16.
- an analog line leads from the output line 9 to an analog input 12 of a computing unit 10 and a digital line leads to a digital input 11 of the computing unit 10.
- the computing unit 10 has a control output 13 on, which is connected via a control line 27 and a first resistor 14 to the gate terminal G of the first transistor 4.
- the computing unit 10 turns on the first transistor 4 at the time TE, so that the current through the primary coil as a result increases and the voltage drop between the collector terminal and the emitter terminal of the first transistor 4 drops from a first voltage UA at time TE to a second voltage UE.
- a primary current ICE flows through the primary coil 1, which starts at the time TE and which increases with the time t, as shown in FIG.
- the voltage on the measuring line 21 changes proportionally, so that the voltage-dependent current source 8 outputs a second current on the output line 9, which is proportional to the primary current and which increases linearly with time.
- the operational amplifier 6 only opens the second transistor 7 when the primary current exceeds the limit current ICL at the time TL.
- the voltage at the analog input 12 and at the digital input 11 thus behaves as a function of the primary current IC in accordance with the curve shown in FIG.
- the voltage at the analog input 12 and at the digital input 11 drops from the predetermined potential of +5 V. proportionally down to a value of just below 3 V. This voltage drop is caused by the second current, which is supplied by the voltage-dependent current source 8.
- the operational amplifier 6 detects this, since the voltage on the measuring line 21 rises above the voltage of the reference voltage source 24. As a result, the operational amplifier 6 drives the base terminal B of the second transistor 7 via its output 26, so that the second transistor 7 becomes conductive and thus a third current flows through the second transistor 7 and the output line 9.
- the second transistor 7 and the second resistor 16 are designed such that, in the case of a conductive second transistor 7, the voltage on the output line 9 drops below a predetermined limit value, in this case 0.8 V. This is shown in FIG. 4 for the specified limit current ICL with 11 A.
- the computing unit 10 regulates the current flow through the primary coil 1 via the transistor 4. At the same time, the computing unit 10 monitors the current flow through the primary coil 1 with an analog input 12 and a digital input 11. An analog / digital converter is provided at the analog input 12 , which converts the voltage present on the output line 9 into a corresponding digital value, which the computing unit 10 then uses to regulate the transistor 4.
- the computing unit 10 monitors the voltage present at the digital input 11. If the voltage at the digital input 11 is in the high range, that is to say above 2.4 volts, the computing unit 10 regulates the current flow through the primary coil 1 via the voltage values which are received by the analog input 12. However, if the computing unit 10 recognizes that a low signal is present at the digital input 11, which is below 0.8 volts, the computing unit 10 actuates the first transistor 4, preferably at a calculated ignition time, in such a way that the current flows through the primary coil 1 is interrupted and thus a high ignition voltage is generated in the secondary coil 2, so that the spark plug 3 ignites.
- connection of an analog and a digital input 12, 11 with a single output line 9 has the advantage that both analog information and digital information can be transmitted via the output line 9.
- the analog information is used to regulate the current flowing through the primary coil 1 and the digital information is used as protection against overcurrent and as a sign that the primary coil 1 is sufficiently charged to carry out ignition of the spark plug 3 .
- the analog information in the form of a voltage change on the output line 9 is to be selected such that the value range for a high signal or the value range for a low signal is not left, so that the analog information does not indicate a high Signal changes to a low signal or vice versa.
- the monitoring of an overcurrent via a digital input 11 is advantageous since the digital input 11 is scanned faster and more often than with the analog input 12 and thus when an excessive current occurs that could damage the primary coil 1, quickly Primary current can be reduced.
- the computing unit 10 knows the voltage value which the digital signal assumes in the high state and in the low state. The computing unit thus calculates the value of the analog signal from the voltage present at the analog input 12.
- the analog signal is advantageously dimensioned such that when the analog and digital signals are superimposed, the computing unit 10 always recognizes the value of the digital signal.
- the first transistor 4 represents a second switch and the second transistor 7 represents a first switch.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measurement Of Current Or Voltage (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19713981A DE19713981A1 (en) | 1997-04-04 | 1997-04-04 | Device for supplying an analog and a digital signal to a computing unit and device for regulating the current flow through a consumer |
DE19713981 | 1997-04-04 | ||
PCT/DE1998/000799 WO1998045597A1 (en) | 1997-04-04 | 1998-03-18 | Device for regulating the flow of electricity through a consumer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0972134A1 true EP0972134A1 (en) | 2000-01-19 |
EP0972134B1 EP0972134B1 (en) | 2005-10-26 |
Family
ID=7825472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98925406A Expired - Lifetime EP0972134B1 (en) | 1997-04-04 | 1998-03-18 | Device for regulating the flow of electricity through a consumer |
Country Status (6)
Country | Link |
---|---|
US (1) | US6204693B1 (en) |
EP (1) | EP0972134B1 (en) |
JP (1) | JP2001521655A (en) |
KR (1) | KR100564086B1 (en) |
DE (2) | DE19713981A1 (en) |
WO (1) | WO1998045597A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10230216A1 (en) * | 2002-07-04 | 2004-01-22 | Endress + Hauser Gmbh + Co. Kg | Method for functionally safe data transmission between a sensor and an evaluation unit |
JP3607902B2 (en) * | 2002-07-22 | 2005-01-05 | 三菱電機株式会社 | Ignition device for internal combustion engine |
FR2853941B1 (en) * | 2003-04-17 | 2007-02-09 | Siemens Vdo Automotive | METHOD FOR THE PRIMARY IGNITION CURRENT CHECK OF AN INTERNAL COMBUSTION ENGINE WITH COMMAND IGNITION |
US7002326B1 (en) * | 2003-09-08 | 2006-02-21 | National Semiconductor Corporation | Method of modulating current regulation control loop's current magnitude from a second control signal |
DE102004025909A1 (en) * | 2004-05-27 | 2005-12-22 | Infineon Technologies Ag | Constant current supply for such as LED lights on an automobile has a fault detection circuit to provide status data |
JP4746942B2 (en) * | 2005-08-31 | 2011-08-10 | 三洋電機株式会社 | Motor speed control integrated circuit |
CN106438155A (en) * | 2016-09-28 | 2017-02-22 | 中国第汽车股份有限公司 | Ignition system with ignition energy self-adaptive adjustment function and control method |
CN108204325B (en) * | 2018-03-03 | 2024-03-15 | 东莞传动电喷科技有限公司 | Integrated ignition coil |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1208855B (en) * | 1987-03-02 | 1989-07-10 | Marelli Autronica | VARIABLE SPARK ENERGY IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINES PARTICULARLY FOR MOTOR VEHICLES |
DE3826663A1 (en) * | 1988-08-05 | 1990-02-08 | Eickhoff Geb | Method and circuit for simultaneously transmitting operating data and/or control commands of a mining machine used underground and of speech signals of the machine operator |
DE3908558A1 (en) * | 1989-03-16 | 1990-09-20 | Knick Elekt Messgeraete Gmbh | SIGNAL TRANSFER SYSTEM |
US5043633A (en) * | 1989-11-13 | 1991-08-27 | Ncr Corporation | Circuit and method for regulating the current flow in a distributorless ignition system coil |
DE4005813C2 (en) * | 1990-02-23 | 2002-01-10 | Siemens Ag | Device for monitoring the load current of an electronically switched consumer |
JPH0579436A (en) * | 1991-09-17 | 1993-03-30 | Nippondenso Co Ltd | Ignition device of internal combustion engine |
DE4231954C2 (en) * | 1992-09-24 | 1994-10-20 | Telefunken Microelectron | Ignition energy control for internal combustion engines |
JPH0828415A (en) * | 1994-07-14 | 1996-01-30 | Hitachi Ltd | Ignition device for internal combustion engine |
DE19511140B4 (en) * | 1995-03-27 | 2007-08-09 | Robert Bosch Gmbh | Device for serial data exchange between two stations |
US6100728A (en) * | 1995-07-31 | 2000-08-08 | Delco Electronics Corp. | Coil current limiting feature for an ignition coil driver module |
US5970964A (en) * | 1995-12-18 | 1999-10-26 | Fuji Electric Co., Ltd. | Circuit device for igniting internal combustion engine and semiconductor device for igniting internal combustion engine |
US5775310A (en) * | 1996-12-24 | 1998-07-07 | Hitachi, Ltd. | Ignition device for an internal combustion engine |
-
1997
- 1997-04-04 DE DE19713981A patent/DE19713981A1/en not_active Withdrawn
-
1998
- 1998-03-18 WO PCT/DE1998/000799 patent/WO1998045597A1/en active IP Right Grant
- 1998-03-18 KR KR1019997009117A patent/KR100564086B1/en not_active IP Right Cessation
- 1998-03-18 JP JP54222298A patent/JP2001521655A/en not_active Ceased
- 1998-03-18 EP EP98925406A patent/EP0972134B1/en not_active Expired - Lifetime
- 1998-03-18 DE DE59813143T patent/DE59813143D1/en not_active Expired - Fee Related
-
1999
- 1999-10-04 US US09/412,063 patent/US6204693B1/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9845597A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR20010006039A (en) | 2001-01-15 |
JP2001521655A (en) | 2001-11-06 |
WO1998045597A1 (en) | 1998-10-15 |
DE59813143D1 (en) | 2005-12-01 |
DE19713981A1 (en) | 1998-10-15 |
US6204693B1 (en) | 2001-03-20 |
EP0972134B1 (en) | 2005-10-26 |
KR100564086B1 (en) | 2006-03-27 |
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