EP2342814A2 - Generatoreinheit für ein kraftfahrzeug-bordnetz - Google Patents
Generatoreinheit für ein kraftfahrzeug-bordnetzInfo
- Publication number
- EP2342814A2 EP2342814A2 EP09745044A EP09745044A EP2342814A2 EP 2342814 A2 EP2342814 A2 EP 2342814A2 EP 09745044 A EP09745044 A EP 09745044A EP 09745044 A EP09745044 A EP 09745044A EP 2342814 A2 EP2342814 A2 EP 2342814A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- generator
- module
- control
- regulator module
- generator unit
- 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.)
- Ceased
Links
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- 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
- H02P9/02—Details of the control
-
- 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
- H02P9/48—Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/16—Regulation of the charging current or voltage by variation of field
- H02J7/24—Regulation of the charging current or voltage by variation of field using discharge tubes or semiconductor devices
- H02J7/2434—Regulation of the charging current or voltage by variation of field using discharge tubes or semiconductor devices with pulse modulation
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
Definitions
- the invention relates to a generator unit for the power supply of a
- a generator unit for a motor vehicle electrical system in which two controller modules cooperate to control the operation of a generator.
- a first of these controller modules is combined with the generator in a generator unit and receives control information from the structurally separate second generator module via a digital interface.
- the second regulator module is implemented in a controller by software. in the
- the second regulator module controls a switching transistor to adjust the excitation current of the generator. If the manipulated variable output by the second regulator module is not plausible, for example because its value or its rate of change is outside a permissible range, and indicates a fault in the second regulator module, the first regulator module takes over control of the generator.
- the implementation of the second controller module in software form enables the implementation of complex, optimized control strategies from many points of view.
- a problem with this known generator unit is in ensuring smooth communication between the generator unit and the external second regulator module. If adjustments or enhancements are made to the generator unit, it is usually necessary to consider them in the software of the second controller module in order to ensure smooth cooperation. If, in an economically meaningful way, the second control module is incorporated in an engine control is integrated, and engine control unit and generator unit of a vehicle are supplied by different manufacturers, they must coordinate with each further development. This makes the development cumbersome and costly.
- the invention relates to a generator unit for a motor vehicle electrical system, comprising a generator, a first regulator module for controlling the operation of the generator and a digital interface, which is combined with the first regulator module in a structural unit, and with a program-controlled second regulator module, wherein the second regulator module is integrated into the assembly and receives control information via the digital interface.
- a generator unit is flexibly adaptable to different operating environments without, in turn, necessitating costly adjustments outside the generator unit, since all changes which may be made in the generator or the first regulator module, for example, may be made e.g. adapting the generator unit to a particular type of vehicle, in which programming of the second controller module can be accommodated such that adjustments in external units providing control information via the digital interface, such as an engine control unit, can be eliminated.
- the second regulator module can only have the function of a protocol converter, which converts control information supplied by an external unit into a format that can be processed by the first regulator module.
- the second regulator module is set up to regulate the generator itself in a normal operating state, while the first regulator module assumes control of the generator only in a fault operating state. This allows the implementation of complex control strategies in the second
- Controller module while the functionalities of the first controller module can be limited to the essential for the power supply of the electrical system essential elementary functions and the first controller module can be constructed accordingly simple and robust.
- the second regulator module is designed to make the regulation of the generator at least partially based on original measured values of sensors. This relieves an external source of control information, such as an engine control unit, from the need to process these generator control readings. This simplifies the operating software of the
- Engine control unit If the engine control unit supplies control information for the generator, this can be done in a form independent of the type of the generator. Consequently, depending on the type of generator different versions of the operating software of the controller are required.
- the regulation of the generator in the fault operating state is preferably carried out without resort to control information received via the digital interface.
- the regulation by the first controller module may not be optimal, there is no danger that the first controller module will be completely inadequate due to erroneous or missing control information.
- a control module can decide, inter alia, based on the value of at least one operating state variable of the electrical system.
- the limit value may be determinable by the second regulator module.
- the ability to set the threshold may be limited to the time that the generator unit is in normal operating mode.
- the first controller module is implemented as an ASIC, it is particularly suitable for incorporating standard controller functions which have no changes - A -
- the first controller module can be used as a constant standard module in generator units according to the invention in combination with the second controller module for many different vehicle types, which is advantageous in terms of the components to be kept.
- Fig. 1 is a schematic representation of a detail of an electrical system for a motor vehicle with a generator unit according to the invention.
- FIG. 1 a section of an electrical system 2 for a motor vehicle is shown schematically.
- the electrical system 2 comprises a generator controller 1, which causes a generator 5 by the output of a manipulated variable for generating an output voltage, which is fed via a rectifier 51 connected to the generator 5 in the electrical system 2.
- the electrical system 2 further comprises a battery 21 and a plurality of electrical loads 22.
- the generator controller 1 is connected via a plug 9 and a digital bus with a
- Control unit 8 of the electrical system connected wherein the connector 8 connecting lines of a digital interface 81 and analog connection lines DFM (generator utilization), KI15 (terminal 15, drive switch on), S (Sense, battery terminal voltage) and W (generator phase).
- DFM generator utilization
- KI15 terminal 15, drive switch on
- S Sense, battery terminal voltage
- W generator phase
- the generator controller 1 comprises an elementary controller module 4 implemented in an ASIC, a higher controller module 3, which is implemented as a programmable digital circuit, in particular as a microcontroller, FPGA or CPLD module, and a control module 6.
- the elementary controller module 4 and the control module 6 are in a preferred embodiment of the invention in a common
- the elementary regulator module 4 comprises an output stage which can be controlled by a PWM control signal and outputs an exciter current proportional to the duty cycle of the PWM control signal to an excitation coil 52 of the generator 5.
- a control input of the output stage 42 is preceded by a change-over switch 41 which allows the PWM control signal to be optionally obtained from an internal control circuit of the elementary regulator module 4 or from the higher regulator module 3.
- the internal control circuit derives the PWM control signal according to a hard-wired relationship from the terminal voltage of the battery or an output voltage of the generator 5 and possibly other control parameters such as the signals Kl 15, W, detected by a sensor operating temperature of the generator 5 and so on ,
- the elementary regulator module 4 may obtain the control parameters via the plug 9 and the digital bus.
- the elementary controller module 4 and the control module 6 use a common bus interface.
- Control parameters measured at the generator can also be transmitted via direct lines, in particular as analog signals, to the elementary
- Regulator module 4 are supplied to rule out the possibility that due to a malfunction of the bus, the control parameters do not reach the elementary controller module 4.
- the control module 6 receives the signals KU 5, S and W via the plug 9.
- the control unit 6 compares e.g. the level of S or the rate of change of this level with a previously specified by the higher control module 3 limit. A power failure is detected when the level of S is outside of an interval between two such limits, or when the rate of change exceeds a threshold. As long as there is no fault, the control module 6 controls the changeover switch 41 in order to apply the PWM signal of the higher control module 3 to the output stage 42. In case of failure, the PWM signal of the internal control circuit of the elementary regulator module 4 is switched through to the output stage 42. If the
- Vehicle electrical system voltage is outside the permissible interval, must be a correction take place as quickly as possible in order to minimize the risk of damage or loss of data in the case of consumers connected to the vehicle electrical system.
- the elementary regulator module 4 is more suitable than the program-controlled higher regulator module 3 due to the faster response times of the ASIC module.
- control module 6 is connected via a signal line 12 to the higher regulator module 3.
- the higher control module 3 is programmed to output a manipulated variable to the generator 5 at fixed time intervals, usually every 100 ms, and to display this activity by outputting a deadman signal to the signal line 12.
- the output of the manipulated variable may e.g. in updating the duty cycle of the PWM signal.
- the deadman signal may e.g. A level reversal of a voltage on the signal line 12, which takes place after each output of the manipulated variable, or a pulse output after each output of the manipulated variable.
- the control module 6 actuates the changeover switch 41, so that the generator 5 is actuated by the elementary control module 4.
- a signal of the control module, with which this controls the switch 41, is also supplied to the higher regulator module 3.
- the higher regulator module 3 is able to detect when the generator unit is running in fault mode and the generator 5 does not respond to the output manipulated variable.
- a return to normal operation occurs when the signal levels monitored by the control unit are within the allowable range again.
- the function of the higher controller module 3 may be limited to encoded in any form, received over the bus and directly a desired nerator intricate representing control commands for the generator 5 in a PWM signal of adapted for the generator 5 and the power amplifier 41 form implemented so that an external control unit such as an on-board computer that provides these control commands, no adaptation to the components of the generator unit more requirement. These adjustments can be easily made on the part of the higher controller module 3 by adapting its software.
- the higher controller module 3 preferably also assumes tasks associated with determining the desired generator power.
- the external control unit can be relieved; its operating software becomes simpler and, since it is largely independent of the technical details of the generator unit, is required in only a small number of different versions, and the response times of the external control unit with its remaining control tasks can be shortened.
- the higher control module 3 receives measured values from sensors directly or via the bus, such as measurements of the battery terminal voltage and / or the generator temperature.
- the information that the higher controller module receives from the on-board computer e.g.
- a control of the generator which can satisfy the long-term power requirements and boundary conditions such as the avoidance of too high operating temperature of the generator is determined on the basis of this specification of the higher control module 3, without taking computing power of the on-board computer.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008043509A DE102008043509A1 (de) | 2008-11-06 | 2008-11-06 | Generatoreinheit für ein Kraftfahrzeug-Bordnetz |
PCT/EP2009/064484 WO2010052197A2 (de) | 2008-11-06 | 2009-11-03 | Generatoreinheit für ein kraftfahrzeug-bordnetz |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2342814A2 true EP2342814A2 (de) | 2011-07-13 |
Family
ID=42096169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09745044A Ceased EP2342814A2 (de) | 2008-11-06 | 2009-11-03 | Generatoreinheit für ein kraftfahrzeug-bordnetz |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110260698A1 (de) |
EP (1) | EP2342814A2 (de) |
JP (1) | JP2012507981A (de) |
DE (1) | DE102008043509A1 (de) |
WO (1) | WO2010052197A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017201687A1 (de) | 2017-02-02 | 2018-08-02 | Siemens Aktiengesellschaft | Regelbare Spannungserzeugungsvorrichtung und Verfahren zum Betreiben einer regelbaren Spannungserzeugungsvorrichtung |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04133601A (ja) * | 1990-09-21 | 1992-05-07 | Toshiba Corp | 保安機能付自動運転制御装置 |
FR2754956B1 (fr) * | 1996-10-18 | 1998-11-20 | Leroy Somer Moteurs | Dispositif de regulation d'un alternateur synchrone sans balais |
JP4197096B2 (ja) * | 2001-02-15 | 2008-12-17 | 日本信号株式会社 | 自動列車制御装置 |
DE10123789A1 (de) * | 2001-05-16 | 2002-11-21 | Philips Corp Intellectual Pty | Stromversorgungssystem |
JP3852400B2 (ja) * | 2002-11-29 | 2006-11-29 | トヨタ自動車株式会社 | 車両制御装置 |
DE10257557A1 (de) * | 2002-12-10 | 2004-07-01 | Robert Bosch Gmbh | Steuergerät für eine Brennkraftmaschine |
DE10321872A1 (de) * | 2003-05-15 | 2004-12-02 | Robert Bosch Gmbh | Generatorregelung mit Haupt- und Hilfsregler |
DE102004008935A1 (de) * | 2004-02-25 | 2005-09-15 | Robert Bosch Gmbh | Vorrichtung zur redundanten Spannungsversorgung |
JP2006034068A (ja) * | 2004-07-21 | 2006-02-02 | Auto Network Gijutsu Kenkyusho:Kk | 車内電源ネットワークシステム及び電源制御装置 |
JP2007060866A (ja) * | 2005-08-26 | 2007-03-08 | Mitsubishi Electric Corp | 車載用電動機制御装置 |
-
2008
- 2008-11-06 DE DE102008043509A patent/DE102008043509A1/de not_active Ceased
-
2009
- 2009-11-03 EP EP09745044A patent/EP2342814A2/de not_active Ceased
- 2009-11-03 JP JP2011535093A patent/JP2012507981A/ja active Pending
- 2009-11-03 WO PCT/EP2009/064484 patent/WO2010052197A2/de active Application Filing
- 2009-11-03 US US13/126,312 patent/US20110260698A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2010052197A2 * |
Also Published As
Publication number | Publication date |
---|---|
JP2012507981A (ja) | 2012-03-29 |
US20110260698A1 (en) | 2011-10-27 |
DE102008043509A1 (de) | 2010-05-12 |
WO2010052197A2 (de) | 2010-05-14 |
WO2010052197A3 (de) | 2011-10-13 |
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