WO2009121805A1 - Fahrzeugautomatisierungseinrichtung und verfahren zur automatisierung von fahrzeugen - Google Patents
Fahrzeugautomatisierungseinrichtung und verfahren zur automatisierung von fahrzeugen Download PDFInfo
- Publication number
- WO2009121805A1 WO2009121805A1 PCT/EP2009/053647 EP2009053647W WO2009121805A1 WO 2009121805 A1 WO2009121805 A1 WO 2009121805A1 EP 2009053647 W EP2009053647 W EP 2009053647W WO 2009121805 A1 WO2009121805 A1 WO 2009121805A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle
- automation device
- interface
- pedal
- ecu
- Prior art date
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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0072—Wheeled or endless-tracked vehicles the wheels of the vehicle co-operating with rotatable rolls
- G01M17/0074—Details, e.g. roller construction, vehicle restraining devices
Definitions
- the subject invention relates to a vehicle automation device for automating vehicles with electric accelerator pedal, which provides a pedal manipulated variable as an electrical signal in a predetermined signal format, a corresponding method, and a vehicle with a vehicle automation device according to the invention.
- a method and a device for automated transmission application is known, with which a characteristic diagram for controlling a switching process can be optimized.
- the device assumes control of the vehicle in a test run and establishes a specific vehicle state, eg gear, rotational speed, torque, acceleration, etc., which can then be evaluated according to a certain criterion, eg shifting comfort .
- the device must for this purpose be connected to the ECU (engine control unit) of the vehicle and changes via an interface corresponding parameters directly in the ECU or TCU (transmission control unit), eg accelerator pedal or gear maps.
- the test run is performed while bypassing the operation of the accelerator pedal.
- the disadvantage is that the device needs knowledge of the ECU to be able to modify the correct parameters.
- the device must therefore be adapted to each vehicle type.
- a parameter written in the ECU is maintained in case of failure of the automation system.
- the automation system may crash during a full load acceleration with a pedal preset of 100%.
- a similar method is described in DE 100 51 353 A1, in which the vehicle control is bypassed by a switch in the ECU and passed over a diagnostic interface (K-Line) of the ECU corresponding specifications for accelerator pedal and shift points, bringing the vehicle by a given driving profile can be performed.
- K-Line diagnostic interface
- the ECU must be programmed accordingly in order to be able to carry out such a changeover.
- This object is achieved according to the invention by providing a vehicle bus interface for reading current control and / or regulating and / or measured variables of the vehicle and an ECU interface for transferring a virtual pedal manipulated variable to the ECU in the predefined signal format and in the vehicle automation device Computer is provided which determines from a predetermined vehicle state to be set and the current control and / or regulating and / or measured variables of the vehicle to be given an electrical pedal manipulated variable for the ECU and outputs them to the ECU interface.
- the associated method is characterized in that a vehicle automation device is connected via an ECU interface with the engine control unit and in the vehicle automation device from a predetermined vehicle state and current control and / or regulating and / or measured variables of the vehicle, a virtual Pedalstellchtgina in predetermined signal format is calculated, which is passed to the engine control unit.
- a pedal manipulated variable is generated which is present in the real signal format and thus can be fed directly to the ECU via an intended interface.
- the vehicle does not notice at all that the ECU is supplied with the virtual Pedalstellieren determined, but the actual Pedalstellulate of accelerator pedal. But so that the vehicle automation device according to the invention can also be used in production vehicles.
- a transmission interface is provided in the vehicle automation device, via which a switching command determined in the vehicle automation device is output.
- a switching command determined in the vehicle automation device is output.
- Switching operations are also effected, which makes the scope of the vehicle automation device more flexible.
- almost any desired driving profiles can be driven off and also automatic transmissions with direct gear specification can be automated.
- the vehicle automation device outputs the minimum of the actual and the determined pedal manipulated variable at the ECU interface. If the foot is removed by the driver from the accelerator pedal, this function equates to an emergency stop, as this will disregard the pedal manipulated variables determined in the vehicle automation device.
- Whole driving profiles can preferably be stored in the vehicle automation device in a memory unit, which can then be retrieved repeatedly by the driver. These driving profiles can thus be repeated repeatedly with high accuracy.
- chassis dynamometer interface via which the chassis can be provided with a roller drive, such as a roller conveyor. Roller speed and / or a roll pitch, can be specified.
- a chassis dynamometer automation unit is preferably provided, via which a vehicle state to be set can be predetermined.
- the chassis dynamometer automation unit advantageously assumes the function of the driver.
- Fig. 1 shows a vehicle with a vehicle automation device according to the invention
- FIG. 2 shows a vehicle with a vehicle automation device according to the invention on a chassis dynamometer.
- the vehicle automation device 1 is physically supplied between the accelerator pedal 3 which supplies the actual pedal position in normal operation as an electric pedal manipulated variable in a predetermined signal format to the engine control unit (ECU) 4 (as indicated by the dashed line in FIG. , and the ECU 4 switched.
- the electric pedal manipulated variables may be analog signals, digital signals, PWM signals or combinations thereof.
- the vehicle automation device 1 is connected, for example via a pedal interface 10 and an ECU interface 12 in series between real accelerator pedal 3 and ECU 4 in the wiring harness (pedal connector).
- the direct connection between ECU 4 and accelerator pedal 3 dashed line
- the ECU 4 now gets the necessary electric pedal manipulated variables in a signal format corresponding to the actual pedal signals via an ECU interface 12 from the vehicle automation device 1 and no longer directly from the accelerator pedal 3.
- the vehicle 2 itself therefore does not notice this difference and there are no further measures on the vehicle 2 or parts of the vehicle, such as the ECU 4, required.
- the real accelerator pedal 3 need not be connected to the vehicle automation device 1 at all, but it would be sufficient, instead of the real accelerator pedal 3, to connect only the ECU 4 with the vehicle test automation device 1. To realize a safety function, as described below, it is advantageous if the vehicle automation device 1 is also supplied with the actual accelerator pedal position.
- a computer preferably a real-time computer 6 (for example computer with real-time operating system), and a memory unit 7 are provided.
- a vehicle state to be set Stored in the memory unit 7 is a vehicle state to be set, which is called up by the real-time computer 6 and converted in the real-time computer 6 into an electric pedal manipulated variable (in the required signal format) and via the ECU interface
- the vehicle automation device 1 may also use further measured variables of the vehicle 2, which may be e.g. can be read out via the vehicle bus (for example a CAN bus) via a vehicle bus interface 1 1.
- vehicle bus for example a CAN bus
- measured quantities of any measuring devices installed in the vehicle 2 and other current control variables of the vehicle 2 can be used, such as, for example, the engine or turbine speed, the vehicle speed, the actual gear, the cooling water or oil temperature, cylinder pressures, exhaust gas parameters, etc.
- the vehicle automation device 1 can also determine electrical gearbox sizes and a transmission interface
- TCU transmission control unit
- the selector lever position must be in the manual shift position.
- the digital signal coming from the selector lever unit is read in the vehicle automation device 1 and processed (eg, to check a correct shift lever position or gear position) and the signal to the transmission control unit 5 to change (eg according to the predetermined driving profile) to trigger upshifts and downshifts can.
- the ECU 4 and the TCU 5 can also be realized in a single device.
- a non-illustrated but well-known robotic switching robot could be installed in the vehicle 2, which would receive switching commands from the vehicle automation device 1, e.g. again via the transmission interface 13, whereby also manually switched vehicles or vehicles with conventional automatic transmission could be automated by the vehicle automation device 1.
- the vehicle automation device 1 As described above, e.g. a certain driving profile is repeated on a test track, wherein the vehicle control (accelerator pedal position and / or switching operations) is taken over by the vehicle automation device 1 and the vehicle steering system carries out the driver of the vehicle.
- the scheduler e.g. the adjustment of parameters, the specification of driving profiles, or the operating point definition, etc., also takes place by the driver of the vehicle.
- a minimum selection between actual pedal position (read in via the pedal interface 10) and the virtual pedal position calculated in the vehicle automation device 1 can also be carried out in the vehicle automation device 1.
- the driver of the vehicle 2 must therefore always 100% pass through the real pedal in order to simulate all pedal positions. If, for some reason, the driver takes his foot off the pedal 3, this equals an emergency stop function, since then the vehicle automation device 1 always forwards the pedal position 0% to the ECU 4, which equates to a coasting operation or the stoppage of the vehicle 2.
- the vehicle automation device 1 can also be used in roll mode on a chassis dynamometer 20, as described below with reference to FIG. 2.
- the vehicle automation device 1 is again installed in the vehicle 2 as described above.
- the vehicle 2 is now placed on a chassis dynamometer 20 with the drive wheels of the vehicle 2 positioned on the drive roller (s) 22.
- a load cell 21 for determining the Vehicle acceleration may be arranged, eg for a drivability rating on the role.
- the load cell 21 supplies here corresponding measured values via an interface 17 to an application unit 9.
- Such a dynamometer 20 is well known, which is why will not be discussed further here.
- an interface 14, 18 for roller control is implemented on the vehicle automation device 1.
- the roller pitch ⁇ and the roller speed u are controlled.
- Such a standard interface 14, 18 is available on almost all chassis dynamometers 20, with which the vehicle automation device 1 can be used without problems on chassis dynamometers 20.
- the control sequence is not predetermined on the chassis dynamometer 20 by a driver but now by a chassis dynamometer 8.
- chassis dynamometer automation units 8 are also well known and commercially available, e.g. the Applicant's CAMEO tool, which is why it will not be discussed further here.
- the vehicle automation device 1 is connected to the chassis dynamometer automation unit 8 via an interface 15, e.g. a CAN bus.
- operating points such as e.g. Shift, Tip In, Tip Out speeds, pedal presets, etc., sent from the Ro- genprüfstandsautomatmaschinestechnik 8 to the vehicle automation device 1.
- these values can be stored in the memory unit 7 or processed directly.
- the Rollenprüfstandsau- automation unit 8 so as a driving profile before, which is then converted by the vehicle automation device 1 into corresponding control variables (pedal position and / or switching operations).
- adjustment parameters e.g. Switching maps, filter settings for the engine desired torque, etc.
- the chassis dynamometer 8 and the application unit 9 are connected via an interface 16.
- a driveability evaluation device can also be provided in the application unit 9, which evaluates the measured values recorded by the application unit 9 (or by the application tool) (for example measured values from the load cell 21). The score can then be sent to the chassis dynamometer automation unit 8 for further processing.
- the synchronization between the chassis dynamometer automation unit 8 and the vehicle automation device 1 or the application unit 9 takes place via a predetermined protocol.
- a relay for interrupting the supply voltage can be installed, which can be connected to the roller emergency stop circuit. If an emergency stop occurs from the side of the roller, this relay is activated and the supply interrupted the vehicle automation device 1, which automatically deactivates the pedal preset, the gear and roller drive.
- a watchdog can be integrated in the real-time computer 6 and the interfaces of the vehicle automation device 1 as a further safety device. This watchdog checks, for example, a trigger at certain time intervals, e.g. every 100 ms, on an edge change. If this does not occur due to a system crash or for any other reason, the power supply to the interfaces is interrupted and pedal, gear and / or roller control is deactivated.
- the vehicle automation device 1 is thus suitable both for operation on the test track, as well as on a chassis dynamometer or a HiL test stand (hardware in the loop test stand), without any changes being made to the vehicle 2 in addition to the integration of the vehicle automation device 1 would.
- the vehicle automation device 1 can consequently be used in test vehicles, but also in standard production vehicles.
- the vehicle automation device 1 may be e.g. for driveability tuning for Ottooder diesel calibration, for shifting quality optimization in automatic or double clutch transmissions, for SDS map measurement (slow dynamic slope, a transient measuring strategy for the reduction of the measuring time on the test bench) for basic applications, for the raster measurement of benchmark vehicles, for trailing particle filter loading lanes, for verification of optimizations of the chassis dynamometer 8, etc., are used.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112009000717T DE112009000717A5 (de) | 2008-04-03 | 2009-03-27 | Fahrzeugautomatisierungseinrichtung und Verfahren zur Automatisierung von Fahrzeugen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT5252008A AT504941B1 (de) | 2008-04-03 | 2008-04-03 | Fahrzeugautomatisierungseinrichtung und verfahren zur automatisierung von fahrzeugen |
ATA525/2008 | 2008-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009121805A1 true WO2009121805A1 (de) | 2009-10-08 |
Family
ID=39735829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/053647 WO2009121805A1 (de) | 2008-04-03 | 2009-03-27 | Fahrzeugautomatisierungseinrichtung und verfahren zur automatisierung von fahrzeugen |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT504941B1 (de) |
DE (1) | DE112009000717A5 (de) |
WO (1) | WO2009121805A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010028452A1 (de) * | 2010-04-30 | 2011-11-03 | Bayerische Motoren Werke Aktiengesellschaft | Fahrerloses Umsetzen eines Personenkraftfahrzeugs über eine Strecke im Werksprozess, im Distributionsprozess oder dazwischen |
CN102466568A (zh) * | 2010-11-08 | 2012-05-23 | 中国第一汽车集团公司 | 乘用车混合动力总成试验台系统 |
CN103699116A (zh) * | 2013-12-17 | 2014-04-02 | 陕西法士特齿轮有限责任公司 | 一种自动变速器集成实验系统 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017218703A1 (de) * | 2017-10-19 | 2019-04-25 | Continental Teves Ag & Co. Ohg | Verfahren zur Wertbestimmung von Parametern |
DE102018130759A1 (de) * | 2018-12-04 | 2020-06-04 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Reproduktion eines im Fahrbetrieb eines Fahrzeugs auftreten-den Fehlers |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10051353A1 (de) * | 2000-10-17 | 2002-04-18 | Daimler Chrysler Ag | Verfahren zur Vorgabe eines Fahrpedalsollwertes |
DE10236620A1 (de) * | 2002-08-09 | 2004-02-19 | Daimlerchrysler Ag | Kraftfahrzeug, Fahrprüfeinrichtung, Fahrprüfprogramm und Prüfstand |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3940588A1 (de) * | 1989-12-08 | 1991-06-13 | Georg Witt | Fahrroboter |
-
2008
- 2008-04-03 AT AT5252008A patent/AT504941B1/de not_active IP Right Cessation
-
2009
- 2009-03-27 WO PCT/EP2009/053647 patent/WO2009121805A1/de active Application Filing
- 2009-03-27 DE DE112009000717T patent/DE112009000717A5/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10051353A1 (de) * | 2000-10-17 | 2002-04-18 | Daimler Chrysler Ag | Verfahren zur Vorgabe eines Fahrpedalsollwertes |
DE10236620A1 (de) * | 2002-08-09 | 2004-02-19 | Daimlerchrysler Ag | Kraftfahrzeug, Fahrprüfeinrichtung, Fahrprüfprogramm und Prüfstand |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010028452A1 (de) * | 2010-04-30 | 2011-11-03 | Bayerische Motoren Werke Aktiengesellschaft | Fahrerloses Umsetzen eines Personenkraftfahrzeugs über eine Strecke im Werksprozess, im Distributionsprozess oder dazwischen |
CN102466568A (zh) * | 2010-11-08 | 2012-05-23 | 中国第一汽车集团公司 | 乘用车混合动力总成试验台系统 |
CN103699116A (zh) * | 2013-12-17 | 2014-04-02 | 陕西法士特齿轮有限责任公司 | 一种自动变速器集成实验系统 |
Also Published As
Publication number | Publication date |
---|---|
AT504941B1 (de) | 2009-08-15 |
AT504941A3 (de) | 2009-04-15 |
AT504941A2 (de) | 2008-09-15 |
DE112009000717A5 (de) | 2011-03-03 |
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