EP4200969A1 - Vorrichtung und verfahren zur einsparung von analogen eingängen an einem steuergerät - Google Patents
Vorrichtung und verfahren zur einsparung von analogen eingängen an einem steuergerätInfo
- Publication number
- EP4200969A1 EP4200969A1 EP21755470.8A EP21755470A EP4200969A1 EP 4200969 A1 EP4200969 A1 EP 4200969A1 EP 21755470 A EP21755470 A EP 21755470A EP 4200969 A1 EP4200969 A1 EP 4200969A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control unit
- signals
- analog
- transmitted
- lines
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/0315—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for using multiplexing techniques
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/1205—Multiplexed conversion systems
- H03M1/122—Shared using a single converter or a part thereof for multiple channels, e.g. a residue amplifier for multiple stages
- H03M1/1225—Shared using a single converter or a part thereof for multiple channels, e.g. a residue amplifier for multiple stages using time-division multiplexing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
- G08C15/02—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path simultaneously, i.e. using frequency division
- G08C15/04—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path simultaneously, i.e. using frequency division the signals being modulated on carrier frequencies
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
- G08C15/06—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Definitions
- the invention relates to a device and a method for saving analog inputs on a control unit.
- DE 11 2017 002 989 T5 describes a way of multiplexing input signals into a control unit in order to reduce the size and complexity of connectors. In this case, primarily digital signals are multiplexed. However, a separate multiplexer is provided in DE 11 2017 002 989 T5.
- US Pat. No. 1,0,490,060 B2 describes a system in which various sensor data are input into an ECU as analog signals, with the various sensor signals being multiplexed in a multiplexer based on time or frequency. However, a separate multiplexer is also provided in DE 11 2017 002 989 T5.
- the invention relates to a circuit with a control device, in particular for two-wheelers.
- a control device in particular for two-wheelers.
- several analog signals should be transmitted to the control unit via a single line.
- signal multiplexing have been proposed for this purpose.
- signals can be time-multiplexed if the signals are not required at the same time.
- frequency multiplexing can be carried out, for example.
- the advantage of the invention is a solution for making x analog signals with fewer than x free inputs available for a control device in a bicycle.
- two analog current measurements are required for an integrated starter generator (ISG) application.
- the two phase currents are measured and transmitted to the control unit via two lines. After the start, there is no longer any need to measure the current, so that when the engine is running, signals other than the current information, such as an analogue signal from the engine temperature sensor or the like, can be transmitted via the lines to the control unit.
- signals other than the current information such as an analogue signal from the engine temperature sensor or the like, can be transmitted via the lines to the control unit.
- Typical ECUs usually have too few pins available for new applications.
- FIG. 1 shows a circuit for carrying out the method according to the invention for saving analog inputs on a control device.
- Figure 1 is a schematic of a system 10 with an internal combustion engine 11, an electric machine 12, a power converter 14 and a than Engine control unit trained control unit 16 shown, with which a method according to the invention can be carried out.
- the electric machine 12 has a rotor 20 and a stator 22 .
- the rotor 20 is rigidly and non-rotatably connected to a crankshaft 24 of the internal combustion engine 11 .
- a speed sensor 26 can be used, for example, to detect a speed and an absolute position with a suitably designed crankshaft. These values can then be supplied to control unit 16 .
- the power converter 12 is designed as an inverter and is connected to the control unit 16 via control lines L1, L2, L3. Furthermore, the inverter 12 is electrically connected to a battery 18 .
- two analog signals S1 and S2 go from the inverter to control unit 16.
- the signals SI, S2 are measured current values.
- the two phase currents are measured and transmitted to the control unit via two lines.
- the signals SI, S2 are routed to A/D converters on a circuit board 30 in the control unit 16 so that a processor present in the control unit 16 can read out and evaluate the current signals.
- an analog current measurement is only required during activation in order to bring the internal combustion engine 11 from a standstill to a suitably high speed. Suitable speeds are in a range between 100 and 400 rpm, in particular 300 rpm. The speeds are preferably less than 1000 rpm.
- the current signals contain information about the position of the rotor 20. If the rotor 20 has reached a rotational speed which lies in the stated range, This position information is made available via the speed detection system from the speed sensor 26 and the sensor wheel. After the start, there is no longer any need to measure the current, so that when the engine is running, other signals such as an analogue signal from the engine temperature sensor or the like can be transmitted via the lines to the control unit instead of the current information.
- the invention proposes a solution that occupies an analog input of the control unit 16 with two different physical signals.
- a signal from an engine temperature sensor TEngine goes to the inverter 14 instead of directly to the control unit 16.
- An analog connection on the control unit 16 can thus be saved.
- the inverter 14 has a logic 40 internally.
- the internal logic 40 is suitable for transmitting the current signals of two phases of the electrical machine to the control unit 16 via the lines SI, S2 in the case of starter operation
- the engine temperature signal is instead transmitted to the control unit 16 via one of the lines SI, S2.
- engine temperature signal other signals can also be used, such as the signal from a lambda probe, a roll-over switches or an air temperature sensor.
- digital inputs can also be used if the analog inputs of the control unit can be reconfigured accordingly to digital inputs.
- a time-division multiplex approach on the control device 16 can thus save corresponding analog pins.
- control unit 16 To do this, it is necessary for control unit 16 to recognize which signal is present at which analog pin.
- This problem can be solved, for example, by only transmitting the current signal from the inverter 14 up to a certain motor speed.
- the current signal is transmitted from the inverter 14 up to a motor speed of approximately 1000 rpm.
- a temperature signal is transmitted.
- the signal from the current sensor of the inverter 14 provides information about the engine speed.
- the frequency of the phase currents is proportional to the speed of the rotor and thus the crankshaft of the internal combustion engine.
- High-frequency PWM switching is used during the ISG control.
- a minimum frequency at the "Inverter Actuation" input can be a switching condition for outputting the current instead of the temperature. This means that the required engine temperature is available before the start of control and during combustion operation. The current temperature information only has to be dispensed with during the start and thus for a negligibly short time.
- a frequency-division multiplex approach can also be used.
- both a low-frequency signal for example a temperature signal
- the current signal are transmitted, with the current signal being transmitted in a higher frequency band.
- the current signal is modulated to a carrier frequency via amplitude modulation.
- the carrier frequency is 5 kHz, for example. However, it is also conceivable that the carrier frequency is 20 kHz.
- the low-frequency signal may be modulated onto a carrier frequency. Both signals are read into control unit 16 via high-frequency scanning.
- the method is not limited to the combination of individual signals. If necessary, all current information of the inverter 14 can be 'multiplexed' with suitable signals. The number of current measurement channels can thus be increased if necessary without the number of analog pins in control unit 16 having to be increased.
- the switching conditions are suitable, more than two signals can be placed on one line. It is conceivable, for example, that any information is on a line before an event. As soon as this information is no longer necessary, a current signal is transmitted instead. Once a corresponding speed has been reached, third information such as the lambda signal, which is only relevant when the engine is running, is transmitted.
- Both the time and frequency multiplex approaches can be implemented in digital form using a suitable digital computer in the hardware of the inverter 14 . If such a computer is not available, a suitable implementation in analog hardware can also be provided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Eletrric Generators (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Control Of Ac Motors In General (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020210555.3A DE102020210555A1 (de) | 2020-08-20 | 2020-08-20 | Vorrichtung und Verfahren zur Einsparung von analogen Eingängen an einem Steuergerät |
| PCT/EP2021/071828 WO2022037949A1 (de) | 2020-08-20 | 2021-08-05 | Vorrichtung und verfahren zur einsparung von analogen eingängen an einem steuergerät |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4200969A1 true EP4200969A1 (de) | 2023-06-28 |
Family
ID=77358274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21755470.8A Withdrawn EP4200969A1 (de) | 2020-08-20 | 2021-08-05 | Vorrichtung und verfahren zur einsparung von analogen eingängen an einem steuergerät |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12214738B2 (de) |
| EP (1) | EP4200969A1 (de) |
| JP (1) | JP7598447B2 (de) |
| CN (1) | CN115867457A (de) |
| DE (1) | DE102020210555A1 (de) |
| WO (1) | WO2022037949A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024204177A1 (de) | 2024-05-06 | 2025-11-06 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zum Erfassen von mehreren Stromsignalen in einem Bordnetz |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19524838C2 (de) * | 1994-07-08 | 2002-03-14 | Hitachi Ltd | Verfahren und System zur Fahrzeugsteuerung |
| DE102012018730A1 (de) * | 2012-09-21 | 2014-03-27 | Man Truck & Bus Ag | Kraftfahrzeug-Bordnetz mit einem zusätzlichen Energiespeicher |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547081A (en) | 1977-06-16 | 1979-01-19 | Clarion Co Ltd | Remote control device |
| JPS5874847A (ja) | 1981-10-30 | 1983-05-06 | Hitachi Ltd | 電子式エンジン制御装置 |
| IT1232538B (it) * | 1989-06-30 | 1992-02-19 | Magneti Marelli Spa | Sistema generatore-motore elettrico,particolarmente per l'impiego come generatore e motore di avviamento a bordo di un autoveicolo provvisto di un motore a combustione interna |
| US5583420A (en) | 1993-10-01 | 1996-12-10 | Lucas Aerospace Power Equipment Corporation | Microprocessor controller for starter/generator |
| US6018200A (en) | 1994-09-14 | 2000-01-25 | Coleman Powermate, Inc. | Load demand throttle control for portable generator and other applications |
| JP3829379B2 (ja) | 1996-11-22 | 2006-10-04 | 株式会社デンソー | 内燃機関の自動始動停止装置 |
| JP2005328690A (ja) | 2004-04-12 | 2005-11-24 | Hitachi Ltd | 車両用回転電機 |
| CN1949655B (zh) | 2005-10-10 | 2010-05-12 | 贺雷 | 电动-发电复用控制方法及其系统 |
| US20130201316A1 (en) * | 2012-01-09 | 2013-08-08 | May Patents Ltd. | System and method for server based control |
| JP2017031808A (ja) | 2013-12-20 | 2017-02-09 | ヤマハ発動機株式会社 | エンジンユニット、及び車両 |
| DE102014213077A1 (de) | 2014-07-04 | 2016-01-07 | Robert Bosch Gmbh | Verfahren zur Bestimmung der Phasenströme einer elektrischen Maschine mit einem Stromrichter |
| JP6497106B2 (ja) | 2015-02-13 | 2019-04-10 | 株式会社デンソー | 多重巻線回転機の制御装置 |
| DE102016201870A1 (de) | 2016-02-08 | 2017-08-10 | Zf Friedrichshafen Ag | Kopplungsanordnung |
| JP6673044B2 (ja) | 2016-06-17 | 2020-03-25 | 株式会社オートネットワーク技術研究所 | 制御システム |
| JP6834460B2 (ja) | 2016-12-21 | 2021-02-24 | 株式会社デンソー | 回転電機の制御装置、回転電機ユニット |
| JP2018105164A (ja) | 2016-12-24 | 2018-07-05 | ダイハツ工業株式会社 | 内燃機関の制御装置 |
| DE102017103873B4 (de) | 2017-02-24 | 2020-10-22 | Infineon Technologies Ag | Sensorschaltung und Erfassungsverfahren |
| DE102017005137B4 (de) | 2017-05-30 | 2020-09-24 | Infineon Technologies Austria Ag | Stromleitungsgesteuerte elektrische Antriebsinverter |
| JP6939482B2 (ja) * | 2017-11-30 | 2021-09-22 | オムロン株式会社 | モータ制御装置、モータ制御装置の制御方法、制御プログラム、および記録媒体 |
| DE102018010439B4 (de) * | 2017-12-06 | 2026-03-26 | Analog Devices, Inc. | Track-and-hold-schaltungen für schnelle adws |
-
2020
- 2020-08-20 DE DE102020210555.3A patent/DE102020210555A1/de not_active Withdrawn
-
2021
- 2021-08-05 WO PCT/EP2021/071828 patent/WO2022037949A1/de not_active Ceased
- 2021-08-05 JP JP2023511672A patent/JP7598447B2/ja active Active
- 2021-08-05 EP EP21755470.8A patent/EP4200969A1/de not_active Withdrawn
- 2021-08-05 CN CN202180050473.0A patent/CN115867457A/zh active Pending
- 2021-08-05 US US18/042,013 patent/US12214738B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19524838C2 (de) * | 1994-07-08 | 2002-03-14 | Hitachi Ltd | Verfahren und System zur Fahrzeugsteuerung |
| DE102012018730A1 (de) * | 2012-09-21 | 2014-03-27 | Man Truck & Bus Ag | Kraftfahrzeug-Bordnetz mit einem zusätzlichen Energiespeicher |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2022037949A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20230322172A1 (en) | 2023-10-12 |
| JP7598447B2 (ja) | 2024-12-11 |
| JP2023538558A (ja) | 2023-09-08 |
| CN115867457A (zh) | 2023-03-28 |
| DE102020210555A1 (de) | 2022-02-24 |
| WO2022037949A1 (de) | 2022-02-24 |
| US12214738B2 (en) | 2025-02-04 |
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