EP3186611A1 - Dispositif de commande pour un dispositif de refroidissement et procédé de test d'un dispositif de refroidissement - Google Patents

Dispositif de commande pour un dispositif de refroidissement et procédé de test d'un dispositif de refroidissement

Info

Publication number
EP3186611A1
EP3186611A1 EP15747139.2A EP15747139A EP3186611A1 EP 3186611 A1 EP3186611 A1 EP 3186611A1 EP 15747139 A EP15747139 A EP 15747139A EP 3186611 A1 EP3186611 A1 EP 3186611A1
Authority
EP
European Patent Office
Prior art keywords
cooling device
vehicle
test operation
fan
parameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15747139.2A
Other languages
German (de)
English (en)
Inventor
Stephan Wenk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3186611A1 publication Critical patent/EP3186611A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
    • G01M15/048—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12 by monitoring temperature

Definitions

  • the invention relates to a control device for a cooling device and a method for testing a cooling device according to the preamble of the independent claims.
  • the electromagnetic alternating fields formed by the electric motor are received by means of an antenna, the received signals are analyzed for signal components in the frequency range of the rotational values of electric motors or their harmonics and if available the functionality is output by means of an output unit.
  • the control device according to the invention for a cooling device with the features of the independent claim has the advantage that at least one vehicle parameter is detected and depending on the at least one detected vehicle parameter, a test operation is performed. This makes it possible that a functional test of a cooling device is performed not only during operation of the cooling device, but that in a test operation, a functionality already in advance of a required use of a cooling device is checked and the
  • Functionality of a cooling device can be ensured if there is a need for operation of the cooling device.
  • a test operation of the cooler is allowed to be performed at an appropriate time.
  • a disturbance of the driver can be avoided by an unexpected performance of a test operation, which is possibly associated with a disturbing noise.
  • running a test operation e.g. is performed only in a driving operation of the vehicle, can also be avoided that an energy storage in the vehicle is unnecessarily burdened in a rest mode.
  • a timing circuit with which a time of a test operation is processed such that a test operation is prevented before a predetermined period of time has elapsed. This avoids that, depending on the driving situation, a test operation is unnecessarily often carried out.
  • a test operation is not carried out until a predetermined time, for example 5 minutes, after switching on a driving operation, by unnecessary means
  • the cooling device is designed as a fan.
  • a fan so usually driven by an electric motor
  • Paddle wheel for air movement which introduces an amount of air for cooling to a device to be cooled, on the one hand cost and on the other hand can be selectively controlled. Furthermore, an operation of a fan can also be easily detected. So is a function of a fan, for example, by detecting a speed of the fan or a
  • Irritation of the driver can thus be excluded.
  • a test operation is possible even without a fault of a driver when a predetermined vehicle speed is exceeded, for example, a speed of 80 km / h.
  • a predetermined vehicle speed for example, a speed of 80 km / h.
  • irritation of the driver due to noise of a test operation of a refrigerator may be precluded even if activation of a vehicle air-conditioning fan as a vehicle parameter is detected.
  • Figure 1 is a driver information device in a motor vehicle with a
  • FIG. 2 shows a control device according to the invention for a cooling device
  • FIG. 3 shows a method according to the invention for testing a cooling device.
  • Heat engine are driven, a continuous cooling in particular for the vehicle drive due to the heat generated by power loss and friction heat is required.
  • vehicles today have a variety of electronic device, which must be cooled in particular depending on an outside temperature and a service life of the vehicle. Often, however, only a temporary cooling in a particular heat load is required. If the cooling does not occur, for example as a result of a malfunction of the present cooling device, then the electronic component may fail abruptly. As a result, if appropriate, the driving safety can be endangered.
  • FIG. 1 shows a driver information device 1 as an example of such an electronic component in a motor vehicle.
  • the driver information device 1 has a display unit 2.
  • the driver information device 1 has a display unit 2.
  • Display unit 2 is arranged, for example, in front of a driver of the motor vehicle and informs the driver about vehicle parameters and the vehicle condition.
  • a scale display 3 is shown, with a vehicle speed is displayed.
  • a warning symbol for example, which indicates a malfunction of a vehicle component can be displayed via a symbol representation 4.
  • a screen display 5 multimedia information or driving instructions can be displayed.
  • the display unit 2 is controlled via a data bus 6 by a control unit 7.
  • the control unit 7 has a computing unit 8, the
  • Vehicle data processed and the display unit 2 drives. This requires a considerable amount of computation.
  • the control unit 7 is generally installed invisible to a driver behind an instrument panel in the motor vehicle. Thus, an immediate release of waste heat, which arises during operation of the arithmetic unit 8, to the environment even when using passive heat sink only possible to a limited extent. For cooling the arithmetic unit 8 is therefore an additional
  • Cooling device 9 is provided.
  • the cooling device 9 can be designed, for example, as a liquid cooling device, for example a heat pipe.
  • a liquid cooling device for example a heat pipe.
  • the cooling device 9 is designed as a fan.
  • the fan 9 it is possible for the fan 9 to move preferably cooled air in the direction of the arithmetic unit 8 via a first, dashed air feed 11.
  • the arithmetic unit 8 is over, for example
  • a second air supply 12 is provided, via which the now heated air can be removed.
  • a reverse air guidance from the second air feed 12 to the first air feed 11 is also possible.
  • this is in or adjacent to the arithmetic unit 8 a
  • Temperature sensor 13 is provided.
  • the temperature sensor 13 is checked by a monitoring unit 10.
  • the required control value results, for example, from a characteristic curve depending on the arithmetic unit temperature. Typically, such an increasing control value is generated as the temperature rises (eg 0% at 86 ° C, 50% at 96 ° C, 100% at 105 ° C).
  • the calculated control value of the fan is filtered in time.
  • the drive value of the fan can also be determined differently, eg as a controller, in particular as a P, PI or two-position controller (with or without hysteresis).
  • Cooling device unnoticed for a long time, for example, by a mechanical contamination or by a cable break. But then it is the
  • a control device 20 is provided for a test operation of the cooling device 9.
  • the control device 20 performs a test operation of the cooling device at an appropriate time.
  • the control device 20 is explained in detail in FIG.
  • the control device 20 has a first interface 21, with which it is connected to the cooling device 9. Via the first interface 21, a computing unit 25 of the control device 20 can activate the cooling device 9 for a test operation.
  • a test operation may include a sequence of specific instructions stored in a memory 26 of the controller 20.
  • the cooling device 9 as a fan, this can be
  • the cooling device When the cooling device is designed as a fan, it is particularly important to determine whether the fan is running at all, ie whether the fan motor is supplied with power or whether there is a mechanical blockage of the fan. In one embodiment, therefore, in a test operation of a fan, the fan can be just controlled so that it runs only at a low speed, for example, between 10% and 25% of its design maximum speed. As a result, a noise is minimized. The fan runs safely, but at low speed.
  • the control device 20 is further equipped with a second interface 22, which is provided with a sensor 27 for detecting an operating parameter of
  • the sensor 27 may be configured, for example, to determine an actual speed of the fan.
  • the sensor 27 can be designed for this purpose, for example, as an optical, as a magnetic or as an electronic sensor. Furthermore, it is also possible that the sensor 27 detects a power consumption of the cooling device 9. In a further embodiment, it is also possible for the sensor 27 to be designed as a temperature sensor, with which a temperature reduction in an environment of the cooling device 9 is determined as a result of an operation of the cooling device 9.
  • the control device 20 is also equipped with a third interface 23, via which at least one vehicle parameter can be detected.
  • the control device 20 may be directly connected to a measuring device in a motor vehicle.
  • control device 20 is connected to a data bus 28 in the motor vehicle.
  • the data bus 28 can
  • a preferably bi-directional data bus for example, as a CAN data bus to be executed.
  • On the data bus 28 can have several
  • Be connected vehicle equipment For example, it is possible to connect an engine control unit 31 to the vehicle data bus 28.
  • the engine control unit 31 transmits an engine speed to the control device 20 via the vehicle data bus.
  • a vehicle data bus 28 For example, it is possible to connect an engine control unit 31 to the vehicle data bus 28.
  • the engine control unit 31 transmits an engine speed to the control device 20 via the vehicle data bus.
  • Speed measuring device 32 for example, the determination A wheel speed determines a speed of the vehicle to be connected to the vehicle data bus for transmitting a speed information of the vehicle to the control device 20.
  • the vehicle data bus 28 may also be provided with an air conditioning device 33 in the
  • the air conditioning 33 can over the
  • Ventilation fan of the air conditioning is activated. Furthermore, the control device 20 via a readout of the bus status of
  • Vehicle data bus 28 or depending on an example issued by the engine control unit 31 signal determine whether the vehicle is ready to drive.
  • the arithmetic unit 25 evaluates one or more of the transmitted
  • the arithmetic unit 25 causes the execution of a
  • Test operation For the driving conditions, for example, the following conditions can be used alternatively or additionally: exceeding an engine speed of 1800 revolutions per minute, exceeding a vehicle speed of 80 km / h, activating the driving mode G. ignition on ") for at least 5 minutes
  • the cooling device 9 is activated via the first interface 21, for example for a period of 10 seconds
  • various operating modes of the cooling device 9 can also be traversed
  • a status of the cooling device 9 is detected via the sensor 27. Via the second interface 22, the status to the control device 20
  • the computing unit 25 checks the status of the cooling device 9, which it received during or after the test operation via the second interface 22.
  • the arithmetic unit 25 compares the obtained data with data stored in the memory 26. Are the transmitted data in one predetermined range, so is a functioning of the cooling device. 9
  • control device 20 accesses an output unit 30 via a fourth interface 29 and gives an error message concerning a malfunction of the cooling device to the
  • the error message can be displayed, for example, by means of a symbol in the display unit 2. Furthermore, the
  • Error message also be documented by means of a fault memory. After a successful execution of a test operation, the arithmetic unit controls
  • a timer 35 at.
  • a counter is reset or a time of carrying out a test operation is stored.
  • the arithmetic unit 25 checks on what time elapsed between the last test operation and the current request. Only if this time span is a given
  • Limit exceeds, for example, one hour, a new test operation is performed.
  • a status of the cooling device 9 may be regularly reported back to the control device 20 via the sensor 27, for example at a regular time interval. If, during operation of the cooling device, preferably beyond a predetermined amount, for example 25 percent of the full load, it is determined that the
  • Timer also reset.
  • the predetermined amount is chosen so high that a stable operation of the cooling device is ensured.
  • the timer Resetting the timer during a driving operation of the vehicle, the timer is reset and will not be reactivated. Activation takes place again only in a next driving operation, so for example in a vehicle with combustion drive to one Switch off and restart the engine. This ensures that a maximum of one check of the cooling device takes place per ignition cycle.
  • control device may also be connected to a temperature sensor 34 in order to cause an activation of the cooling device when a predetermined temperature limit is exceeded.
  • a predetermined temperature limit is exceeded.
  • only one controller is required for controlling the normal operation and the test operation of the cooling device.
  • the test operation of a fan according to the invention is activated with a start step 40, for example, with activation of a driving operation of a vehicle. Subsequently, a branch is made to a first test step 41. In the first test step 41, it is checked whether one or more of the driving parameters for a test operation is fulfilled, ie, for example, a vehicle speed of greater than 80 km / h and / or an engine speed of at least 1800
  • a branch is made to a second test step.
  • the second test step 42 it is checked whether a test operation has taken place during the present driving cycle or within a predetermined period of, for example, one hour. If this is the case, then it is also branched back. Otherwise, branching is made to an execution step 43.
  • the cooling device so for example a fan, temporarily activated.
  • a subsequent third test step 44 it is checked whether the operating parameters of the cooling device during the execution step 43 are within a predetermined range. If this is the case, then it is branched back.
  • an error message is output in an output step 45.
  • a vehicle user is now informed that the cooling device is no longer functioning properly, so that a workshop can be visited at a suitable time. Subsequently, the method is terminated by an end step 46.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Testing Of Engines (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne un dispositif de commande (20) pour un dispositif de refroidissement(9), notamment pour un véhicule automobile, comprenant une première interface (21) destinée à activer le dispositif de refroidissement (9) pour un mode de test, comprenant une deuxième interface (22) destinée à acquérir au moins un paramètre de fonctionnement du dispositif de refroidissement pendant le mode de test, comprenant une troisième interface (23) destinée à acquérir au moins un paramètre de véhicule, comprenant une quatrième interface (29) destinée à délivrer un message d'erreur concernant le dispositif de refroidissement(9) et comprenant une unité de calcul (25) qui provoque un mode de test du dispositif de refroidissement (9) en fonction dudit paramètre de véhicule et qui délivre le message d'erreur pendant le mode test en fonction dudit paramètre de fonctionnement du dispositif de refroidissement (9).
EP15747139.2A 2014-08-28 2015-07-29 Dispositif de commande pour un dispositif de refroidissement et procédé de test d'un dispositif de refroidissement Withdrawn EP3186611A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014217111.3A DE102014217111A1 (de) 2014-08-28 2014-08-28 Steuereinrichtung für eine Kühleinrichtung und Verfahren zum Testen einer Kühleinrichtung
PCT/EP2015/067394 WO2016030115A1 (fr) 2014-08-28 2015-07-29 Dispositif de commande pour un dispositif de refroidissement et procédé de test d'un dispositif de refroidissement

Publications (1)

Publication Number Publication Date
EP3186611A1 true EP3186611A1 (fr) 2017-07-05

Family

ID=53783218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15747139.2A Withdrawn EP3186611A1 (fr) 2014-08-28 2015-07-29 Dispositif de commande pour un dispositif de refroidissement et procédé de test d'un dispositif de refroidissement

Country Status (4)

Country Link
EP (1) EP3186611A1 (fr)
CN (1) CN106574882A (fr)
DE (1) DE102014217111A1 (fr)
WO (1) WO2016030115A1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4235181A (en) * 1978-04-27 1980-11-25 Oregon Link, Inc. Automatic blower control system for inboard marine engines
US6200021B1 (en) * 1997-11-10 2001-03-13 Toyoto Jidosha Kabushiki Kaisha Abnormality detector apparatus for a coolant apparatus for cooling an engine
JP3629982B2 (ja) * 1998-10-27 2005-03-16 日産自動車株式会社 冷却液温度センサの診断装置
DE19958384A1 (de) * 1999-12-03 2001-06-07 Bosch Gmbh Robert Verfahren zur Erkennung eines fehlerhaften Sensors
DE10300051A1 (de) 2002-12-13 2004-07-15 Daimlerchrysler Ag Verfahren und Vorrichtung zum Testen von Elektromotoren insbesondere Lüftermotoren auf Funktionsfähigkeit
JP3924254B2 (ja) * 2003-03-06 2007-06-06 本田技研工業株式会社 内燃機関の冷却装置の故障検知装置
SE526638C2 (sv) * 2004-02-25 2005-10-18 Scania Cv Ab Övervakning av kylvätsketemperaturgivare
CN101858827B (zh) * 2010-05-25 2012-11-28 中国第一汽车集团公司 一种柴油机故障诊断临时中断的方法
DE102013201352B4 (de) * 2013-01-29 2017-12-07 Robert Bosch Gmbh Verfahren und Vorrichtung zum prädiktiven Betreiben einer Kühlung für ein Motorsystem eines Kraftfahrzeugs

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2016030115A1 *

Also Published As

Publication number Publication date
WO2016030115A1 (fr) 2016-03-03
CN106574882A (zh) 2017-04-19
DE102014217111A1 (de) 2016-03-03

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