EP0889213B1 - Agencement de capteurs et dispositif de commande de moteur électrique pour moteur à combustion interne - Google Patents

Agencement de capteurs et dispositif de commande de moteur électrique pour moteur à combustion interne Download PDF

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Publication number
EP0889213B1
EP0889213B1 EP98111377A EP98111377A EP0889213B1 EP 0889213 B1 EP0889213 B1 EP 0889213B1 EP 98111377 A EP98111377 A EP 98111377A EP 98111377 A EP98111377 A EP 98111377A EP 0889213 B1 EP0889213 B1 EP 0889213B1
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EP
European Patent Office
Prior art keywords
sensor
throttle valve
integrated
micro
module 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.)
Expired - Lifetime
Application number
EP98111377A
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German (de)
English (en)
Other versions
EP0889213A3 (fr
EP0889213A2 (fr
Inventor
Hans Hubert Hemberger
Matthias Scherer
Winfried Stiltz
Günther ALBERTER
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Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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Filing date
Publication date
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP0889213A2 publication Critical patent/EP0889213A2/fr
Publication of EP0889213A3 publication Critical patent/EP0889213A3/fr
Application granted granted Critical
Publication of EP0889213B1 publication Critical patent/EP0889213B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28—Interface circuits
    • 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
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0294—Throttle control device with provisions for actuating electric or electronic sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0404—Throttle position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0406—Intake manifold pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0414—Air temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/08—Redundant elements, e.g. two sensors for measuring the same parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor

Definitions

  • the invention relates to a sensor arrangement and a motor control device for an internal combustion engine, wherein the Engine control device Sensor means for detecting engine load indicative Sizes, means for determining the engine load the measured values supplied by the sensor means and a Throttle position control loop with a throttle position controller, a throttle actuator and a throttle position sensor includes.
  • sensor arrays and motor control devices of internal combustion engines designed so that all the sensors arranged on the engine and the Throttle actuator housed in separate housings and individually connected to an engine control unit, which is the contains complete intelligence for the engine control.
  • an engine control unit e.g. a main processor, an associated with this engine load calculation unit, one the main processor coupled security processor to perform mandatory safety functions for an electric controlled throttle, a throttle position controller and an associated output stage for controlling the Throttle actuator.
  • the engine load calculation unit are the output signals of an intake manifold pressure sensor, an intake air temperature sensor and an air mass sensor supplied.
  • the output of the throttle position sensor both the engine load calculation unit and the throttle position controller supplied to the engine control unit. All said sensors are separated from each other at appropriate Positions of the air intake tract positioned.
  • the throttle actuator is usually e.g. as a DC servomotor performed with a potentiometer, which serves as a throttle position sensor serves.
  • a special Throttle valve adjusting device for a motor vehicle internal combustion engine it is known to one of a Processor controlled throttle actuator, an associated Throttle position sensor, a throttle body, in which on a throttle shaft the Throttle valve is arranged, the electronic components of a Input stage from which a setpoint signal is fed to a position control loop can be fed, the position control loop itself and a Output stage, which can be fed to an output signal of the position control loop is and fed to the servomotor via the control signals can be integrated in a common assembly to arrange. Through this component integration of the Cabling effort can be reduced.
  • DE 44 43 502 A1 shows an engine control unit, in which For reasons of saving plug connections a throttle gan, a control unit and an air mass meter in a housing are housed as a preassembled unit.
  • air flow sensor with temperature sensor, mass flow meter the Robert Bosch GmbH of 1995 shows on page 115 a micromechanical hot-film air mass flow meter, the one for the realization of his measuring function a heating resistor, two on both sides closely adjacent Temperature sensors and a slightly further air temperature sensor integrated contains.
  • throttle position sensor are in addition to potentiometers already a variety of other types have been proposed in particular those based on a non-contact measuring principle based, such as optical, magnetic and capacitive sensing. Sensors of these types are e.g. in the publications DE 38 26 408 A1, DE 42 43 778 A1 and DE 42 43 779 A1 and the patents DE 40 14 885 C2, DE 40 34 991 C2, DE 41 18 218 C2 and US 4,994,739.
  • the invention is the provision as a technical problem a sensor arrangement and a motor control device of the type mentioned, the only little cabling require and accordingly fail-safe are, compact build, a precise and therefore fuel consumption and exhaust emission optimized engine control enable and, if necessary, multisensor data processing taking advantage of redundant sensor information allow.
  • the invention solves this problem by providing a sensor arrangement with the features of claim 1 and an engine control device having the features of the claim Second
  • a sensor amount that consists of an air mass sensor, an intake air temperature sensor, an intake manifold pressure sensor and a throttle position sensor consists of at least two sensors in the form of a Saugrohr horrsensors and an air mass sensor or in the form of a throttle position sensor and at least one further sensor microintegrated in a module unit arranged.
  • all four sensors are in this way in microtechnology integrated into the module unit.
  • a Sensor arrangement provided according to claim 1. It includes the engine control device is a module unit in which not only the two to four mentioned sensors of this sensor arrangement, but in addition the means for engine latter mitt ment, preferably in the form of an engine load estimate, and / or the throttle position controller microintegrated arranged are.
  • this engine control device eliminates the cabling for those integrated into the module unit Components, preferably all four said sensor array sensors, the engine load determining means and the throttle position controller in Microtechnology are integrated into the module unit, which then as a micro-integrated, intelligent throttle position and Load detection module can be called.
  • the entire engine control device through the Microintegration of said components in the module unit be constructed comparatively compact.
  • engine control device is the throttle position sensor at the microintegration what he does in a special way relatively simply, However, it is constructed so that it still has the required accuracy offers.
  • a further developed according to claim 4 engine control device has a brushless synchronous motor as the throttle actuator, which in such a motor conventionally for the purpose of detecting its parking position provided Hall sensor elements at the same time as one involved in micro-integration Throttle position sensor can be used. This allows comparatively accurate throttle position measurements over the entire adjustment range.
  • engine control device is in the module unit further a power electronics integrated in microtechnology, which feeds the power consuming Components of the module unit and possibly one Throttle actuator serves.
  • engine control device is in the module unit additionally a security processor unit microintegrated arranged to carry out of required safety features for the electrical Throttle control is set up.
  • the outsourcing this processor unit usually contained in the engine control unit out of this into the module unit carries on to simplify the engine control unit and, above all, to save money of cabling and signal transmission processes in particular, although the engine load determining means and the throttle position controller integrated into the module unit are.
  • the engine control device shown schematically in Fig. 1 includes an engine control unit 1 and an intelligently designed, in mikrotechnik realized Drosselklappengnagnagnates- and Load detection module 2, with the engine control unit 1 via a serial, digital data line 3 in data exchange connection stands.
  • the throttle position and load detection module 2 is designed as an annular member which is on the circumference of a Lucasansaugrohres 4 of a controlled by the engine control device, not shown motor vehicle internal combustion engine is arranged in the region of a throttle valve 5, in the Suction tube 4 is pivotally mounted.
  • the adjustment of the throttle 5 takes place by means of a servomotor 6, for which preferably a brushless synchronous motor is used.
  • module 2 Into the throttle position and load sensing module 2 are all hardware and software components for engine load detection and the adjustment of the throttle valve 5 in micro-integrated Construction included, i. all for recording motor load-indicative Sizes required sensors, means of determination, i.e. Estimation of the engine load based on the measured values of these Sensors and a throttle position control loop.
  • module 2 includes a sensor block 7, a signal processing block 8, a power electronics 9 and a separated from the sensor block 7, non-contact measuring Throttle position sensor 10.
  • the sensor block 7 includes an air mass flow sensor 7a, a Intake air temperature sensor 7b and an intake manifold pressure sensor 7 c, which protrude in a suitable manner from the module 2 in the suction pipe 4.
  • the signal processing block 8 includes means for determining the engine load by making a load estimate for which in particular the three engine load-sensitive output signals of Sensors 7a, 7b, 7c of the sensor block 7 are used.
  • a throttle position controller and a security processor unit is employed in the signal processing block 8.
  • the Throttle position controller forms along with that of him controlled throttle actuator 6 and the throttle position sensor 10 the throttle position control loop.
  • Module 2 receives the throttle valve setting needed Information regarding the air mass setpoint or the Target speed of the engine via the data line 3 from Engine control unit 1 and gives over this bidirectional data line 3, the information about the measured by the air mass flow sensor 7a Air mass actual value to the engine control unit 1 on.
  • the Security processor unit within the signal processing block 8 is used to carry out required, e.g. legally prescribed, safety functions for the electrical Throttle control.
  • the signal processing block 8 contains the hardware and hardware necessary to fulfill the functions mentioned above Software with appropriate intelligence, what he especially has a suitable microprocessor.
  • the same in the Module 2 micro-integrated power electronics 9 supplies the power-consuming components of the module 2 and the throttle actuator 6 with the required electrical energy.
  • module 2 A realization of the module 2 is that with the microsystem technology familiar expert on the basis of the above-described, from the module 2 to be fulfilled functions readily possible, so that this no further explanation is needed here.
  • module 2 both the engine load determining means as well as the throttle position controller including associated output stage for controlling the throttle actuator motor 6 and beyond the security processor and the required power electronics 9 contains need these components no longer as usual in the engine control unit 1 are housed.
  • Throttle position and load sensing module 2 in all the hardware and software components for engine load detection and throttle valve adjustment integrated in microsystem technology are a number of advantages. This is how microintegration makes it possible the relevant for the load detection sensors 7a, 7b, 7c in Sensor block 7 the use of multi-sensor data processing, i.e. Sensor fusion to increase accuracy and reliability the engine load estimates derived from the sensor measurements. It also eliminates the need for a separate Temperature compensation for each individual sensor.
  • the signal processing block 8 together with security processor unit and the power electronics 9 in the Module 2 also results in a significant reduction of the Cabling effort and thus increase system security, because the sensor output signals no longer to the engine control unit 1 must be led. With the module 2 can be the internal combustion engine comparatively accurate and reliable in the desired Control manner, for example so that the smallest possible Fuel consumption and exhaust emissions.
  • Throttle position sensor 10 instead of the conventional, fault-prone throttle potentiometer preferably a used non-contact measuring sensor, whose one sensor part together with an associated transmitter in the Module 2 is micro-integrated.
  • Two such throttle sensors, which are feasible with relatively little effort are in Figs. 2 and 3 are shown.
  • the throttle position sensor 10a shown in FIG. 2 includes as a first sensor part, a Hall sensor element 11, the on the circumference of the air intake pipe 4 in the region around a pivot axis 12 pivotally mounted in the intake pipe 4 throttle valve. 5 is arranged.
  • a Hall sensor element 11 To the Hall sensor element 11 is an associated, analog evaluation 13 coupled, as well as the Hall sensor element 11 microintegrated into the module 2 of Fig. 1 is.
  • a second sensor part comprises the throttle position sensor 10a a magnetic pill 14, the on a circumferential point of the throttle valve 5 is pressed, which is adjacent to the position of the Hall sensor element 11 on the intake pipe 4 is, wherein the distance between Hall sensor element 11 and magnetic pill 14 at small throttle angles near the Closed position is small and with larger throttle angles increases.
  • a sensor can be used instead the Hall sensor element 11 is a carrier frequency generator and instead of the pressed-in magnetic pill 14, an associated, An absorber element realized as a resonant circuit for the carrier frequency generator having emitted electromagnetic waves.
  • the analog transmitter 13 is suitable for this Modification adjusted by the distance between carrier frequency generator and absorber element-dependent absorptivity and thus to detect the set throttle angle can.
  • Fig. 3 shows a simple realization of a throttle position sensor 10b in the event that as a throttle actuator a brushless synchronous motor 6a is used, its shaft via a not shown, translating gear is rotatably coupled to the shaft of the throttle valve 5.
  • brushless synchronous motor 6a has a plurality Hall sensor elements 15a, 15b, 15c, which are usually to serve to detect the exact position of the servo motor 6a.
  • This Hall-side Hall sensor elements 15a, 15b, 15c are in the example of Fig. 3 at the same time as the one sensor part of a contactless measuring throttle position sensor 10b used the other sensor part an associated, suitably designed Evaluation electronics 16, e.g. in the form of an ASIC module, which microintegrates into the module 2 of FIG.
  • this evaluation electronics 16 again be part of the signal processing block 8.
  • 4 signal lines 17 are guided on the circumference of the suction tube the transmitter 16, the output signals of the Hall sensor elements 15a, 15b, 15c supplied.
  • Throttle potentiometer As another possibility of waiving a failure-prone Throttle potentiometer is considered in the signal processing block 8 of module 2 of FIG. 1 is an indirect estimate the throttle position based on the engine load sensor signals and in this way the entirety of Sensors, which measure the engine load-indicative sizes together with the engine load estimation means as the throttle position sensor use.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Claims (6)

  1. Agencement de capteurs comportant au moins deux capteurs micro-intégrés pour un moteur à combustion interne, caractérisé en ce que parmi une famille de détecteurs constituée par un détecteur de masse d'air (7a), par un détecteur de température d'air d'aspiration (7b), par un détecteur de pression de tubulure d'aspiration (7c) et par un détecteur de position de papillon des gaz (10), au moins deux détecteurs sous la forme du détecteur de pression de tubulure d'aspiration (7c) et du détecteur de masse d'air (7a) et le cas échéant sous la forme d'au moins un autre détecteur sont agencés en étant micro-intégrés dans une unité modulaire (2) ; ou bien au moins deux détecteurs sous la forme du détecteur de position de papillon des gaz (10) et sous la forme d'au moins un autre détecteur (7a, 7b, 7c) sont agencés en étant micro-intégrés dans une unité modulaire (2).
  2. Système de commande de moteur pour un moteur à combustion interne, comportant
    des moyens détecteurs (7a, 7b, 7c) pour détecter des paramètres indicatifs de la charge du moteur,
    des moyens (8) pour déterminer la charge du moteur en se basant sur les valeurs de mesure acheminées par les moyens détecteurs, et
    un circuit de régulation de la position du papillon des gaz, comportant un régulateur (8) de la position du papillon des gaz, qui génère un signal de position de papillon des gaz en utilisant la charge de moteur déterminée, une unité de positionnement de papillon des gaz (6) et un détecteur de position de papillon de gaz (10),
    caractérisé en ce que
    les moyens détecteurs sont constitués par un agencement de détecteurs selon la revendication 1, dans lequel sont prévus dans l'unité modulaire (2), en supplément auxdits au moins deux détecteurs (7a, 7b, 7c, 10), les moyens (8) pour déterminer la charge du moteur et/ou le régulateur de position de papillon de gaz (8) en étant agencés avec micro-intégration.
  3. Système de commande de moteur selon la revendication 2, caractérisé en ce que le détecteur de position de papillon de gaz (10a) est constitué par une première partie de détecteur sous la forme d'un élément détecteur de Hall (11) et reliée à une unité électronique d'évaluation (13) ou par un émetteur d'ondes électromagnétiques, et par une deuxième partie de détecteur sous la forme d'un corps magnétique (14) ou d'un élément absorbeur d'ondes électromagnétiques, la deuxième partie de détecteur étant positionnée à un emplacement périphérique d'un papillon des gaz (5) monté mobile en pivotement dans une tubulure d'aspiration d'air (4), et la deuxième partie de détecteur étant positionnée à un emplacement opposé de la tubulure d'aspiration d'air, et la première partie de détecteur ainsi que l'unité électronique d'évaluation sont agencées en étant micro-intégrées dans l'unité modulaire (2).
  4. Système de commande de moteur selon l'une ou l'autre des revendications 2 et 3, caractérisé en ce que l'unité de positionnement de papillon de gaz est formée par un moteur synchrone (6a) sans balais comportant des éléments détecteurs de Hall (15a, 15b, 15c) détectant la position, les signaux de sortie des éléments détecteurs de Hall pouvant être acheminés vers une unité électronique d'évaluation (16) formant avec ces derniers un détecteur de position de papillon de gaz (10b) et agencée en étant micro-intégrée dans l'unité modulaire (2).
  5. Système de commande de moteur selon l'une des revendications 2 à 4, caractérisé en ce qu'une unité électronique de puissance (9) est agencée en étant micro-intégrée dans l'unité modulaire (2), par laquelle sont alimentés les composants consommateurs de puissance de l'unité modulaire (2) et un moteur de positionnement de papillon de gaz (6).
  6. Système de commande de moteur selon l'une des revendications 2 à 5, caractérisé en ce qu'une unité de sécurité à processeur (8) est agencée en étant micro-intégrée dans l'unité modulaire (2), qui est aménagée pour effectuer des fonctions de sécurité pour le réglage du papillon des gaz.
EP98111377A 1997-07-03 1998-06-20 Agencement de capteurs et dispositif de commande de moteur électrique pour moteur à combustion interne Expired - Lifetime EP0889213B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19728349A DE19728349A1 (de) 1997-07-03 1997-07-03 Sensoranordnung und Motorsteuerungseinrichtung für einen Verbrennungsmotor
DE19728349 1997-07-03

Publications (3)

Publication Number Publication Date
EP0889213A2 EP0889213A2 (fr) 1999-01-07
EP0889213A3 EP0889213A3 (fr) 2000-05-10
EP0889213B1 true EP0889213B1 (fr) 2003-10-15

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US (1) US6446600B1 (fr)
EP (1) EP0889213B1 (fr)
DE (2) DE19728349A1 (fr)

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CN107110041B (zh) * 2014-12-23 2020-10-16 胡斯华纳有限公司 用于安全起动内燃机引擎的组件和方法
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DE102016223681A1 (de) 2016-11-29 2018-05-30 Schaeffler Technologies AG & Co. KG Klappenanordnung für ein Fahrzeug

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DE19728349A1 (de) 1999-01-07
EP0889213A3 (fr) 2000-05-10
EP0889213A2 (fr) 1999-01-07
US6446600B1 (en) 2002-09-10
DE59809903D1 (de) 2003-11-20

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