WO2015010756A1 - Verfahren und elektronische schaltungsanordnung zur redundanten signalverarbeitung einer sicherheitsrelevanten anwendung, kraftfahrzeugbremssystem und kraftfahrzeug damit sowie verwendung einer derartigen elektronischen schaltungsanordnung - Google Patents
Verfahren und elektronische schaltungsanordnung zur redundanten signalverarbeitung einer sicherheitsrelevanten anwendung, kraftfahrzeugbremssystem und kraftfahrzeug damit sowie verwendung einer derartigen elektronischen schaltungsanordnung Download PDFInfo
- Publication number
- WO2015010756A1 WO2015010756A1 PCT/EP2014/001666 EP2014001666W WO2015010756A1 WO 2015010756 A1 WO2015010756 A1 WO 2015010756A1 EP 2014001666 W EP2014001666 W EP 2014001666W WO 2015010756 A1 WO2015010756 A1 WO 2015010756A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electronic circuit
- signal
- motor vehicle
- circuit arrangement
- processing
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/221—Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/88—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
- B60T8/885—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/40—Failsafe aspects of brake control systems
- B60T2270/413—Plausibility monitoring, cross check, redundancy
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
Definitions
- the invention relates to a method for redundant signal processing of a safety-relevant application, in particular a safety control unit of a motor vehicle, according to the preamble of claim 1 and an electronic circuit arrangement for carrying out such a method according to the preamble of claim 2. Furthermore, the invention relates to a motor vehicle brake system and a motor vehicle Such an electronic circuit arrangement and a use of this circuit arrangement.
- An example of an anti-lock vehicle brake system is off
- the input data are fed in parallel to two identically programmed microcontrollers and processed synchronously there. In between and at the output, the signals are compared. If a deviation of the signals from each other, a shutdown signal is output. Due to a second microcontroller, which is identical in construction and in its programming with the first microcontroller, data processing errors can be at least partially detected.
- a second microcontroller which is identical in construction and in its programming with the first microcontroller, data processing errors can be at least partially detected.
- such a system requires two high-quality microcontrollers, although to generate the actual Control signals a single microcontroller would suffice, which doubles the cost of microcontrollers for security reasons.
- the invention is therefore based on the object to provide a simple and inexpensive method and an electronic circuit arrangement, with the reliability, which is required for safety-relevant applications, can detect malfunctions of the system.
- the invention solves this problem with the features of a method for redundant signal processing according to claim 1, with an electronic circuit arrangement according to claim 2, with a motor vehicle brake system according to claim 6, with a vehicle according to claim 7 and with a use of an electronic circuit arrangement according to claim 8.
- At least one sensor supplies at least two redundant signals for processing sensor information of the sensors as input signals to an electronic circuit arrangement.
- the input signals are provided by two independent sensors to detect errors in the generation of the sensor signal due to a faulty sensor or to provide the reliability of the system in case of failure of a sensor.
- the transmission device for transmitting the sensor signals is also designed to be redundant in order to detect transmission errors if necessary. Therefore, according to the invention, the electronic circuit arrangement has at least two sensor signals as input signals for processing the sensor information to disposal.
- the input signals are transferred either directly or via a protective circuit against overvoltage to a peripheral module of a microcontroller.
- the peripheral module preferably has a software module which is configured in such a way as to compare the received signals with one another. Due to existing deviations, possible sources of error can be determined and the safety-relevant application converted into a safe state.
- the aforementioned functionally independent paths across the two redundant input signals may be simultaneously affected if there is a systematic design error or a systematic manufacturing fault in the peripheral device of the microcontroller. This error could affect both input signals simultaneously and lead to a simultaneous failure or malfunction of the system.
- the electronic circuit arrangement has at least one input circuit which is designed in such a way as to generate from the input signal a test signal which differs from the input signal but retains the sensor information.
- the test signal is likewise transmitted to the microcontroller for processing. Since the test signal differs from the input signal, the respective peripheral modules are constructed differently and the test signal is processed in a further peripheral module independently of the input signal, whereby the processing of the sensor information is advantageously made redundant. Since the I / O modules fulfill the same processing target, the signals or data can be compared after processing and possible systematic errors within the I / O modules can be detected.
- the peripheral components of the microcontroller have a redundant signal processing capability.
- the different software modules with different software drivers can advantageously be avoided.
- the input circuit which converts the input signal into an analog test signal is designed as a low-pass filter if the input signal is a pulse width modulated signal.
- the input circuit which converts the input signal into a pulse width modulated test signal has a voltage controlled oscillator (VCO) if the input signal is an analog voltage or current signal.
- VCO voltage controlled oscillator
- Another preferred embodiment of the invention provides means for detecting significant differences between the results of the redundantly processed sensor information of the input signal and the test signal. If such deviations are present, the control systems affected by the deviating data can advantageously be converted into a secure state. Thus, it is advantageous to avoid misjudgments of systems that may pose a threat to humans.
- the invention solves o. Task further with a motor vehicle brake system, for example an ABS or EBS system, with means for carrying out the method according to the invention and / or with at least one electronic circuit arrangement according to the invention, in particular a safety control unit.
- a motor vehicle brake system for example an ABS or EBS system
- means for carrying out the method according to the invention and / or with at least one electronic circuit arrangement according to the invention, in particular a safety control unit in particular a safety control unit.
- the invention solves the above object with a motor vehicle, which has at least one electrical circuit arrangement, in particular a safety control unit, for redundant signal processing and / or a motor vehicle brake system with such electronic circuitry and / or means for performing a method according to the invention for redundant signal processing of a security-relevant application , Finally, the invention solves the above object by using an electronic circuit arrangement according to the invention for redundant signal processing of a security-relevant application, wherein the inventive electronic circuit for redundant signal processing in a motor vehicle braking system and / or can be applied in a motor vehicle.
- Such a use of a circuit arrangement according to the invention advantageously ensures the functional safety of a system, in particular of a motor vehicle brake system or of a motor vehicle, with electronic components.
- Fig. 1 is a block diagram of an electronic circuit arrangement
- FIG. 1 shows schematically a redundantly operating system with an electronic circuit arrangement 2, which comprises at least one control functionality.
- a sensor system 4 is provided with two sensors which detect the same variable independently.
- the sensor information of the two sensors are contained in two received signals 6, which via a Transfer device, eg via two separate bus systems, the electronic circuitry 2 are passed.
- the input signals 6 are first supplied to two input circuits 8 of the electronic circuit arrangement 2.
- the input circuits 8 serve merely to protect against possible overvoltages and are therefore to be regarded as optional, so that the input signals 6 are transferred to a microcontroller 10, in particular to a first peripheral component 12 of the microcontroller 10.
- the received signals 6 are pulse-width-modulated signals of the sensor system 4.
- the sensors sense e.g. the way of the brake pedal and output this as an electrical signal pulse width modulated.
- the first peripheral module 12 is preferably a pick-and-place unit that can pick up and compare signals. By comparing the input signals 6, the transmission device is checked for possible errors.
- the first peripheral module 12 also has a first software module with associated software driver, whereby a brake request is determined from the sensor information and a corresponding release of the pressure control takes place.
- the first peripheral device 12 has a systematic error, e.g. a faulty programming of the first software module, it may lead to a malfunction of the system, in particular of the microcontroller 10, despite the redundant transmission of the sensor information.
- an input signal 6 in a further input circuit 14 is converted into a test signal 16.
- the further input circuit 14 is a low-pass filter with which the pulse-width-modulated input signal 6 is converted into an analog test signal 16.
- the test signal 16 thus differs from the input signal 6, but still has all the sensor information.
- a second peripheral module 18 of the microcontroller 10 For further processing of the test signal 16, this is passed to a second peripheral module 18 of the microcontroller 10.
- the second peripheral module 18 is used for redundant signal processing of the microcontroller 10, i. the first peripheral module 12 and the second peripheral module 18 pursue the same processing target.
- the second peripheral module 18 uses a second software module other than the first peripheral module 12 and another software driver for further processing the sensor information.
- the second peripheral module 18 is essentially an analog-digital converter with subsequent processing of the digital signal.
- a subsequent comparison of the determined brake request of the first peripheral module 12 with the determined brake request of the second peripheral module 18 advantageously enables the detection of a singular error cause in one of the peripheral modules 12, 18, if the result of the redundant signal processing of the two peripheral modules 12, 18 deviates significantly from one another.
- two redundantly transmitted analog current or voltage signals can also be transferred as input signals 6 of the electronic circuit arrangement 2.
- These analog current or voltage signals represent, for example, the brake pressure to be generated, which is predetermined by the actuation of the brake pedal. If analog input signals 6 of the electronic circuit arrangement 2 are present, they are processed in a first peripheral module 12 with the aim of releasing the pressure control if the received signals 6 were transmitted without errors.
- test signal 16 is now generated from the analog input signal 6.
- the test signal 16 is a pulse-width-modulated signal which is generated by means of a voltage-controlled oscillator and which is passed to the second peripheral module 18 for further processing.
- pulse width modulated signal instead of a pulse width modulated signal, other types of modulation, such as e.g. Pulse frequency modulation, pulse amplitude modulation, pulse code modulation or pulse phase modulation, be provided or any other type of modulation, such. Amplitude modulation, angle modulation or frequency / phase modulation to transmit and / or convert the sensor signals.
- Pulse frequency modulation pulse amplitude modulation
- pulse code modulation pulse code modulation
- pulse phase modulation any other type of modulation, such.
- Amplitude modulation, angle modulation or frequency / phase modulation to transmit and / or convert the sensor signals.
- the software and hardware used in the microcontroller 10 for processing the sensor signals are tested for error-free operation in addition to the redundant transmission device to ensure error-free transmission of sensor signals by the input signal 6 is converted into another test signal 16 and the subsequent evaluation of the received signal 6 in a peripheral module 12 and the evaluation of the test signal 16 in an independent peripheral module 18 separately.
- circuit arrangement 2 according to the invention With the aid of the circuit arrangement 2 according to the invention, consequently, a high level of security of the system can be achieved. In doing so, the inventions
- the circuit arrangement 2 according to the invention can advantageously be realized with low production costs, since only one microcontroller 10 is used.
- the invention thus complies with the new ISO (International Organization for Standardization) 26262 ("Road Vehicle - Functional Safety”) standard, which is intended to ensure the functional safety of an electrical or electronic system in motor vehicles.
- ISO International Organization for Standardization
- 26262 Road Vehicle - Functional Safety
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Regulating Braking Force (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- General Engineering & Computer Science (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020167003945A KR20160037939A (ko) | 2013-07-26 | 2014-06-18 | 안전-관련 적용의 리던던트 신호 처리를 위한 방법 및 전자 회로 장치, 차량 브레이크 시스템 및 이러한 차량 브레이크 시스템을 갖는 차량, 그리고 이러한 전자 회로 장치의 사용 |
| CN201480041968.7A CN105555624B (zh) | 2013-07-26 | 2014-06-18 | 冗余信号处理的方法和电子电路装置及其用途、机动车及其制动系统 |
| US14/904,968 US10053079B2 (en) | 2013-07-26 | 2014-06-18 | Redundant signal processing of a safety-relevant application |
| JP2016528367A JP2016529610A (ja) | 2013-07-26 | 2014-06-18 | 安全に関連するアプリケーションの冗長な信号処理のための方法及び電子回路装置、自動車ブレーキシステム及び自動車ブレーキシステムを有する自動車並びにこのような電子回路装置の使用 |
| EP14733999.8A EP3024707A1 (de) | 2013-07-26 | 2014-06-18 | Verfahren und elektronische schaltungsanordnung zur redundanten signalverarbeitung einer sicherheitsrelevanten anwendung, kraftfahrzeugbremssystem und kraftfahrzeug damit sowie verwendung einer derartigen elektronischen schaltungsanordnung |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013012497.2A DE102013012497A1 (de) | 2013-07-26 | 2013-07-26 | Verfahren und elektronische Schaltungsanordnung zur redundanten Signalverarbeitung einer sicherheitsrelevanten Anwendung, Kraftfahrzeugbremssystem und Kraftfahrzeug damit sowie Verwendung einer derartigen elektronischen Schaltungsanordnung |
| DE102013012497.2 | 2013-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015010756A1 true WO2015010756A1 (de) | 2015-01-29 |
Family
ID=51033118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2014/001666 Ceased WO2015010756A1 (de) | 2013-07-26 | 2014-06-18 | Verfahren und elektronische schaltungsanordnung zur redundanten signalverarbeitung einer sicherheitsrelevanten anwendung, kraftfahrzeugbremssystem und kraftfahrzeug damit sowie verwendung einer derartigen elektronischen schaltungsanordnung |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10053079B2 (de) |
| EP (1) | EP3024707A1 (de) |
| JP (1) | JP2016529610A (de) |
| KR (1) | KR20160037939A (de) |
| CN (1) | CN105555624B (de) |
| DE (1) | DE102013012497A1 (de) |
| WO (1) | WO2015010756A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015114211A1 (de) * | 2015-08-27 | 2017-03-02 | Endress + Hauser Gmbh + Co. Kg | Sensorschaltung zum Auswerten eines Sensorsignals |
| DE102015217386A1 (de) * | 2015-09-11 | 2017-03-16 | Robert Bosch Gmbh | Verfahren und System zum Betreiben eines Kraftfahrzeugs |
| CN109901547B (zh) * | 2017-12-11 | 2021-07-16 | 中车永济电机有限公司 | 一种车辆管理控制vcu柜 |
| DE102018220065A1 (de) * | 2018-11-22 | 2020-05-28 | Robert Bosch Gmbh | Betriebsverfahren für eine redundante Sensoranordnung eines Fahrzeugsystems und korrespondierende redundante Sensoranordnung |
| US11385632B2 (en) * | 2018-12-21 | 2022-07-12 | The Boeing Company | Sensor fault detection and identification using residual failure pattern recognition |
| DE102019129305A1 (de) | 2019-10-30 | 2021-05-06 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Schaltvorrichtung für ein Bremssystem für ein Fahrzeug, Bremssystem mit einer Schaltvorrichtung und Verfahren zum Betreiben einer Schaltvorrichtung |
| EP3822134B1 (de) * | 2019-11-18 | 2021-12-29 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Bremssystem für ein kraftfahrzeug und anhängersteuerungsmodul |
| CN114115055A (zh) * | 2021-11-30 | 2022-03-01 | 重庆川仪自动化股份有限公司 | 用于符合电动执行机构功能安全的冗余控制系统及方法 |
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| DE3234637C2 (de) | 1982-09-18 | 1990-10-18 | Alfred Teves Gmbh, 6000 Frankfurt, De | |
| DE102006017302A1 (de) * | 2006-04-12 | 2007-10-18 | Siemens Ag | Verfahren und System zur Kontrolle einer Signalübertragung eines elektrischen Pedals |
| GB2451559A (en) * | 2007-07-27 | 2009-02-04 | Bosch Gmbh Robert | Electrically operated brake having brake sensor fail safety |
| US20120221897A1 (en) * | 2010-08-03 | 2012-08-30 | Siemens Aktiengesellschaft | Method and Device for Performing Failsafe Hardware-Independent Floating-Point Arithmetic |
| DE102011122776A1 (de) * | 2011-07-21 | 2013-01-24 | Daimler Ag | Bremsanlage für ein Kraftfahrzeug |
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| JP2841602B2 (ja) * | 1989-12-28 | 1998-12-24 | 住友電気工業株式会社 | 多重系制御回路 |
| DE4341082A1 (de) * | 1993-12-02 | 1995-06-08 | Teves Gmbh Alfred | Schaltungsanordnung für sicherheitskritische Regelungssysteme |
| DE19716197A1 (de) * | 1997-04-18 | 1998-10-22 | Itt Mfg Enterprises Inc | Mikroprozessorsystem für sicherheitskritische Regelungen |
| DE10056129A1 (de) * | 2000-11-13 | 2002-05-23 | Zf Lenksysteme Gmbh | Steuerungssystem für ein Stellglied in einem Kraftfahrzeug |
| DE10162689A1 (de) * | 2001-01-12 | 2002-07-18 | Daimler Chrysler Ag | Vorrichtung zur Überwachung von in einem Fahrzeug angeordneten Sensormitteln |
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2013
- 2013-07-26 DE DE102013012497.2A patent/DE102013012497A1/de active Pending
-
2014
- 2014-06-18 JP JP2016528367A patent/JP2016529610A/ja active Pending
- 2014-06-18 WO PCT/EP2014/001666 patent/WO2015010756A1/de not_active Ceased
- 2014-06-18 KR KR1020167003945A patent/KR20160037939A/ko not_active Ceased
- 2014-06-18 US US14/904,968 patent/US10053079B2/en active Active
- 2014-06-18 EP EP14733999.8A patent/EP3024707A1/de not_active Withdrawn
- 2014-06-18 CN CN201480041968.7A patent/CN105555624B/zh active Active
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| DE3234637C2 (de) | 1982-09-18 | 1990-10-18 | Alfred Teves Gmbh, 6000 Frankfurt, De | |
| DE102006017302A1 (de) * | 2006-04-12 | 2007-10-18 | Siemens Ag | Verfahren und System zur Kontrolle einer Signalübertragung eines elektrischen Pedals |
| GB2451559A (en) * | 2007-07-27 | 2009-02-04 | Bosch Gmbh Robert | Electrically operated brake having brake sensor fail safety |
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Also Published As
| Publication number | Publication date |
|---|---|
| US10053079B2 (en) | 2018-08-21 |
| CN105555624A (zh) | 2016-05-04 |
| KR20160037939A (ko) | 2016-04-06 |
| JP2016529610A (ja) | 2016-09-23 |
| CN105555624B (zh) | 2020-04-03 |
| US20160144844A1 (en) | 2016-05-26 |
| EP3024707A1 (de) | 2016-06-01 |
| DE102013012497A1 (de) | 2015-01-29 |
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