EP1287248A1 - Verfahren und vorrichtung zur filterung eines signals - Google Patents
Verfahren und vorrichtung zur filterung eines signalsInfo
- Publication number
- EP1287248A1 EP1287248A1 EP01943013A EP01943013A EP1287248A1 EP 1287248 A1 EP1287248 A1 EP 1287248A1 EP 01943013 A EP01943013 A EP 01943013A EP 01943013 A EP01943013 A EP 01943013A EP 1287248 A1 EP1287248 A1 EP 1287248A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- variable
- input variable
- filtering
- signal
- 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
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D11/105—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
- F02D2011/103—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles at least one throttle being alternatively mechanically linked to the pedal or moved by an electric actuator
Definitions
- the invention relates to a method and a device for filtering a signal according to the.
- a method and a device for filtering a signal is known for example from DE 195 37 787.
- the driver's desired quantity is filtered using a guide shaper.
- the filtering is designed such that e.g. rapid changes in the driver's quantity (pedal value) do not have an undamped effect on the fuel metering and thus the excitation of longitudinal vehicle vibrations is avoided.
- Such filtering for damping the excitation of systems have the disadvantage that they produce a lag error when the input variable changes like a ramp. That , the output variable follows the input variable only with a delay. This has an effect, for example, in an application in an internal combustion engine due to a reduced drive torque.
- the procedure according to the invention offers the advantage that corresponding following errors can be compensated for without that restrictions in the filter effect, particularly in the case of sudden changes in the input variable, have to be accepted.
- FIG. 1 shows the basic structure of a fuel metering system
- FIG. 2 shows a block diagram of the procedure according to the invention.
- the invention is illustrated below using the example of a fuel quantity signal in a self-igniting internal combustion engine.
- the invention is not limited to this application. It can also be used with other signals, in particular with signals that are used in the control of internal combustion engines.
- the method is suitable for signals that influence or characterize the delivered torque.
- signals are, for example, a fuel quantity signal, signals for actuating power-influencing actuators, a quantity request signal, the output signal of an accelerator pedal sensor or a speed signal.
- FIG. 1 shows the basic structure of a fuel metering system of an internal combustion engine.
- 10 denotes an accelerator pedal position sensor and 11 a speed sensor.
- a setpoint control 12 is connected to the accelerator pedal position sensor and the speed sensor 11.
- the output signal MEW of the setpoint control which the driver corresponds to the desired quantity, comes to a master shaper 13.
- the speed signal N of the speed sensor 11 reaches a disturbance variable controller 14.
- the output signal MEF of the master shaper 13 and the output signal MES of the fault regulator 14 are superimposed in an addition point and form the quantity signal MEA, which is fed to an actuating device 15 becomes.
- an appropriate amount of fuel is metered into the internal combustion engine (not shown).
- the setpoint control 12 calculates the driver's desired quantity MEW, which is required in order to provide the driving performance desired by the driver. In systems without bucking damping, this signal is fed directly to the actuating device 15.
- the actuating device 15 converts this signal into a control signal to act on the corresponding actuating elements. In the case of in-line pumps, for example, it is provided that a control loop regulates the control rod position to a corresponding value. In the case of time-controlled systems, the actuating device 15 emits a control signal for a quantity-determining solenoid valve or a piezo actuator.
- the driver's request signal MEW is filtered by means of a guide former 13.
- the guide former 13 has at least a retarding effect.
- filters with PTI behavior can be used. It is particularly advantageous if filters are used as the guide former, which also include other components.
- the speed signal N is fed to a fault controller 14.
- the new mode of operation of this device is described in DE 195 37 787. If the filter 13, which forms the guide former, has at least a delaying behavior, for example a T1 element, then a lag error occurs with certain changes in the input variable of the filter 13. This means that the output variable follows the input variable only with a delay.
- this lag error is eliminated by applying a correction value at the input of the filter, which correction value is formed on the basis of the input variable.
- the input variable is preferably derived over time, i.e. differentiated and then weighted with a value that can be specified in particular.
- This weighting factor is preferably specified as a function of the transmission behavior of the filter to be corrected.
- the temporal derivation of the input variable is limited in order to maintain the filter effect in the case of a rapidly changing input variable despite the measures against lag errors.
- FIG. 2 shows the guide former with such a correction in more detail. Elements already described in FIG. 1 are identified by the corresponding reference symbols.
- the actual filter of the guide former is referred to as the first filter 100.
- the input variable MEW of the guide shaper 13 reaches a node 125 on the one hand with a positive sign and on the other hand reaches a second filter 110.
- the output signal of the node 125 reaches the first filter 100.
- the output signal of the second filter 110 reaches a second node 115 via a limiter 112.
- the output signal of the node 115 preferably reaches the node 125 with a positive sign.
- the output signal of the first filter 100 forms the output variable M ⁇ F.
- the limiter 112 is arranged after the connection point 115. This means the limiter 112 limits the correction variable with which the input variable of the first filter 100 is corrected in the node 125.
- the input variable also arrives at a node 130 via an amplifier 140, at whose second input the output variable of the first filter 100 is present. Linked together, these two variables then form the output variable MEF.
- the second filter 110 is preferably designed as a differentiator. At least the second filter 110 comprises a differentiating component.
- the second filter can also be designed as a PD element or as a DT element.
- the output variable of the second filter 110 is limited by the limiter 112 to maximum permissible values in order to ensure the filter effect in the event of a rapid, in particular sudden, change in the input variable MEW.
- the limiter 112 is dimensioned such that the limitation is ineffective with a slowly changing input variable and the filter 110 makes an uninfluenced contribution to correcting the input variable of the first filter 100.
- the second filter 120 With slow changes in the input variable, the second filter 120 has a relatively large influence on the filtered variable. According to the invention, the following error is thereby avoided. avoided.
- the limitation In the case of sudden changes, that is to say rapid changes in the input variable, the limitation is effective, as a result of which the corresponding contribution of the second filter 110 to correcting the input variable of the first filter is only slight.
- the second filter 120 has a relatively small influence on the filtered variable. In this case, the first filter 100 has a great influence on the size being filtered.
- the output signal of the second filter 110 is weighted with a predeterminable weighting factor of the factor specification 120.
- the weighting factor can be specified in particular as a function of the transmission behavior of the first filter 100.
- the first filter 100 has the transition function:
- the size T is usually referred to as the delay time constant and the size K as the proportional gain.
- the factor of the factor specification 120 is preferably identical to the time constant T. This means that the output signal of the second filter 110 limited by the limiter 112 with the factor of the factor specification 120, i.e. is weighted with the delay time constant T of the first filter 100.
- the amplifier 140 has the gain factor V.
- the input variable MEW of the first filter 100 is corrected as a function of that of the input variable MEW of the first filter 100. Based on the input variable MEW of the first filter, this means that a correction variable for correcting this input variable is determined.
- the input variable is derived or differentiated over time and then weighted by a factor.
- the factor is essentially determined by the transmission behavior of the first filter.
- the factor preferably corresponds to the delay time constant T of the first filter.
- the proportional gain K of the first filter is chosen to be less than 1 and the input signal of the first filter is supplied with a correspondingly amplified input signal.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Networks Using Active Elements (AREA)
- Feedback Control In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10024269 | 2000-05-17 | ||
DE10024269A DE10024269A1 (de) | 2000-05-17 | 2000-05-17 | Verfahren und Vorrichtung zur Filterung eines Signals |
PCT/DE2001/001685 WO2001088357A1 (de) | 2000-05-17 | 2001-05-03 | Verfahren und vorrichtung zur filterung eines signals |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1287248A1 true EP1287248A1 (de) | 2003-03-05 |
EP1287248B1 EP1287248B1 (de) | 2006-11-29 |
Family
ID=7642453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01943013A Expired - Lifetime EP1287248B1 (de) | 2000-05-17 | 2001-05-03 | Verfahren und vorrichtung zur filterung eines signals |
Country Status (9)
Country | Link |
---|---|
US (1) | US7051058B2 (de) |
EP (1) | EP1287248B1 (de) |
JP (1) | JP2003533632A (de) |
KR (1) | KR100771288B1 (de) |
CN (1) | CN1236204C (de) |
DE (2) | DE10024269A1 (de) |
ES (1) | ES2275692T3 (de) |
RU (1) | RU2266416C2 (de) |
WO (1) | WO2001088357A1 (de) |
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DE102005027650B4 (de) * | 2005-06-15 | 2018-02-08 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine |
DE102005044853A1 (de) * | 2005-09-20 | 2007-03-29 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Filterung eines Signals |
DE102011087179B4 (de) * | 2011-11-28 | 2023-03-30 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Betreiben eines Kraftfahrzeugs |
US9534547B2 (en) * | 2012-09-13 | 2017-01-03 | GM Global Technology Operations LLC | Airflow control systems and methods |
US9784198B2 (en) | 2015-02-12 | 2017-10-10 | GM Global Technology Operations LLC | Model predictive control systems and methods for increasing computational efficiency |
US9334815B2 (en) | 2014-03-26 | 2016-05-10 | GM Global Technology Operations LLC | System and method for improving the response time of an engine using model predictive control |
US9797318B2 (en) | 2013-08-02 | 2017-10-24 | GM Global Technology Operations LLC | Calibration systems and methods for model predictive controllers |
US9388758B2 (en) | 2014-03-26 | 2016-07-12 | GM Global Technology Operations LLC | Model predictive control systems and methods for future torque changes |
US9920697B2 (en) | 2014-03-26 | 2018-03-20 | GM Global Technology Operations LLC | Engine control systems and methods for future torque request increases |
US9541019B2 (en) | 2014-03-26 | 2017-01-10 | GM Global Technology Operations LLC | Estimation systems and methods with model predictive control |
US9714616B2 (en) | 2014-03-26 | 2017-07-25 | GM Global Technology Operations LLC | Non-model predictive control to model predictive control transitions |
US9435274B2 (en) | 2014-03-26 | 2016-09-06 | GM Global Technology Operations LLC | System and method for managing the period of a control loop for controlling an engine using model predictive control |
US9429085B2 (en) | 2013-04-23 | 2016-08-30 | GM Global Technology Operations LLC | Airflow control systems and methods using model predictive control |
US9528453B2 (en) | 2014-11-07 | 2016-12-27 | GM Global Technologies Operations LLC | Throttle control systems and methods based on pressure ratio |
US9587573B2 (en) | 2014-03-26 | 2017-03-07 | GM Global Technology Operations LLC | Catalyst light off transitions in a gasoline engine using model predictive control |
US9765703B2 (en) | 2013-04-23 | 2017-09-19 | GM Global Technology Operations LLC | Airflow control systems and methods using model predictive control |
US9599049B2 (en) | 2014-06-19 | 2017-03-21 | GM Global Technology Operations LLC | Engine speed control systems and methods |
US9378594B2 (en) | 2014-03-26 | 2016-06-28 | GM Global Technology Operations LLC | Fault diagnostic systems and methods for model predictive control |
US9388754B2 (en) | 2014-03-26 | 2016-07-12 | GM Global Technology Operations LLC | Artificial output reference for model predictive control |
US9732688B2 (en) | 2014-03-26 | 2017-08-15 | GM Global Technology Operations LLC | System and method for increasing the temperature of a catalyst when an engine is started using model predictive control |
US9347381B2 (en) | 2014-03-26 | 2016-05-24 | GM Global Technology Operations LLC | Model predictive control systems and methods for internal combustion engines |
US9382865B2 (en) | 2014-03-26 | 2016-07-05 | GM Global Technology Operations LLC | Diagnostic systems and methods using model predictive control |
US9376965B2 (en) | 2013-04-23 | 2016-06-28 | GM Global Technology Operations LLC | Airflow control systems and methods using model predictive control |
US9863345B2 (en) | 2012-11-27 | 2018-01-09 | GM Global Technology Operations LLC | System and method for adjusting weighting values assigned to errors in target actuator values of an engine when controlling the engine using model predictive control |
US9605615B2 (en) | 2015-02-12 | 2017-03-28 | GM Global Technology Operations LLC | Model Predictive control systems and methods for increasing computational efficiency |
US9938908B2 (en) | 2016-06-14 | 2018-04-10 | GM Global Technology Operations LLC | System and method for predicting a pedal position based on driver behavior and controlling one or more engine actuators based on the predicted pedal position |
US9789876B1 (en) | 2016-06-16 | 2017-10-17 | GM Global Technology Operations LLC | Axle torque control system for a motor vehicle |
US10427272B2 (en) * | 2016-09-21 | 2019-10-01 | Applied Materials, Inc. | Endpoint detection with compensation for filtering |
US10125712B2 (en) | 2017-02-17 | 2018-11-13 | GM Global Technology Operations LLC | Torque security of MPC-based powertrain control |
US10119481B2 (en) | 2017-03-22 | 2018-11-06 | GM Global Technology Operations LLC | Coordination of torque interventions in MPC-based powertrain control |
GB2553172A (en) * | 2017-04-13 | 2018-02-28 | Detroit Electric Ev Ltd | Electrical vehicle drive train and method of operation |
US10399574B2 (en) | 2017-09-07 | 2019-09-03 | GM Global Technology Operations LLC | Fuel economy optimization using air-per-cylinder (APC) in MPC-based powertrain control |
US10358140B2 (en) | 2017-09-29 | 2019-07-23 | GM Global Technology Operations LLC | Linearized model based powertrain MPC |
CN107725202B (zh) * | 2017-10-10 | 2019-10-29 | 中国第一汽车股份有限公司 | 转速信号的处理装置 |
US10619586B2 (en) | 2018-03-27 | 2020-04-14 | GM Global Technology Operations LLC | Consolidation of constraints in model predictive control |
US10661804B2 (en) | 2018-04-10 | 2020-05-26 | GM Global Technology Operations LLC | Shift management in model predictive based propulsion system control |
US10859159B2 (en) | 2019-02-11 | 2020-12-08 | GM Global Technology Operations LLC | Model predictive control of torque converter clutch slip |
US11312208B2 (en) | 2019-08-26 | 2022-04-26 | GM Global Technology Operations LLC | Active thermal management system and method for flow control |
US11008921B1 (en) | 2019-11-06 | 2021-05-18 | GM Global Technology Operations LLC | Selective catalytic reduction device control |
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-
2000
- 2000-05-17 DE DE10024269A patent/DE10024269A1/de not_active Withdrawn
-
2001
- 2001-05-03 WO PCT/DE2001/001685 patent/WO2001088357A1/de active IP Right Grant
- 2001-05-03 DE DE50111554T patent/DE50111554D1/de not_active Expired - Lifetime
- 2001-05-03 KR KR1020027015464A patent/KR100771288B1/ko not_active IP Right Cessation
- 2001-05-03 CN CNB018096522A patent/CN1236204C/zh not_active Expired - Fee Related
- 2001-05-03 US US10/276,502 patent/US7051058B2/en not_active Expired - Fee Related
- 2001-05-03 JP JP2001584726A patent/JP2003533632A/ja active Pending
- 2001-05-03 ES ES01943013T patent/ES2275692T3/es not_active Expired - Lifetime
- 2001-05-03 RU RU2002133094/06A patent/RU2266416C2/ru not_active IP Right Cessation
- 2001-05-03 EP EP01943013A patent/EP1287248B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0188357A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20040254656A1 (en) | 2004-12-16 |
JP2003533632A (ja) | 2003-11-11 |
DE10024269A1 (de) | 2001-12-20 |
RU2002133094A (ru) | 2005-05-10 |
KR20030010624A (ko) | 2003-02-05 |
WO2001088357A1 (de) | 2001-11-22 |
CN1236204C (zh) | 2006-01-11 |
ES2275692T3 (es) | 2007-06-16 |
DE50111554D1 (de) | 2007-01-11 |
CN1429314A (zh) | 2003-07-09 |
KR100771288B1 (ko) | 2007-10-29 |
RU2266416C2 (ru) | 2005-12-20 |
US7051058B2 (en) | 2006-05-23 |
EP1287248B1 (de) | 2006-11-29 |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20021217 |
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