CN105339853B - Control device with detection of interruption of a line conducting a current - Google Patents

Control device with detection of interruption of a line conducting a current Download PDF

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Publication number
CN105339853B
CN105339853B CN201480036241.XA CN201480036241A CN105339853B CN 105339853 B CN105339853 B CN 105339853B CN 201480036241 A CN201480036241 A CN 201480036241A CN 105339853 B CN105339853 B CN 105339853B
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CN
China
Prior art keywords
control device
electric current
actuator
circuit
line
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Application number
CN201480036241.XA
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Chinese (zh)
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CN105339853A (en
Inventor
于尔根·格哈特
马丁·齐默尔曼
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00Safety arrangements
    • G05B9/02Safety arrangements electric
    • G05B9/03Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1208Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1256Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
    • F16H2061/1292Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is the power supply, e.g. the electric power supply

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

The invention relates to a control device for controlling an actuator, wherein the control device is connected to an external energy supply by means of a first current-carrying line, and a second current-carrying line is connected between the external energy supply and the control device in parallel with the first current-carrying line, said second current-carrying line being capable of being switched on spontaneously or automatically when the first current-carrying line is interrupted. In a parallel-type transmission that ensures the function of the energy supply device even when the energy supply device is disturbed, a first current check unit is provided in the first current-carrying line, and the first current check unit can detect the interruption of the first current-carrying line.

Description

The control device of the detection of the interruption of circuit with guiding electric current
Technical field
The present invention relates to a kind of control device.Therefore, the present invention relates to a kind of control device, the control device and outside Power supply by means of guiding the first line of electric current to connect, and guide the second circuit of electric current and guiding electric current First line is connected in parallel between power supply and control device, and the second circuit of the guiding electric current is in guiding electricity The first line of stream being capable of spontaneous access or automatic use when interrupting.This control device can be for example used in motor vehicles In automatic shifting transmission.Automatic shifting transmission for example can be the parallel manual transmission with two sub- power trains (PSG), also referred to as double-clutch speed changer, the sub- power train has can be caused with multiple by one or more speed changers respectively The sub- speed changer of the gear of dynamic device gearshift, wherein every sub- power train is equipped with friction clutch, the friction clutch by from Close actuator operation.Control device of the transmission actuator and clutch actuator of participation by one or more according to the present invention To control.
Background technology
Also it is set to control other electrically driven (operated) actuators with being used for fail-safe according to the control device of the present invention, such as Control in automatic clutch system, such as EKM systems (electric clutch managing device), electrically controlled clutch system (Clutch-by-wire-Systemen) and the clutch in all types of automatic shifting transmissions (ASG, PSG) and/or Transmission actuator.In addition, the control device is set to the separation clutch in for fail-safe operation of hybrid vehicle Actuator and for running parking brake actuator in motor vehicles and for controlling other causes in motor vehicles Shifting element, the actuator of such as jaw clutch in dynamic device, such as power train for operating vehicle.
Known a kind of parallel manual transmission from the A1 of DE 10 2,008 050 289.This parallel shift speed change Device uses in the power train of motor vehicles and has two sub- power trains, and the sub- power train is equipped with friction clutch respectively Device.Friction clutch is operated independently of each other by actuator herein.Operation by control device by means of control and driver element Lai Control.
In order to prevent supplying mistake to the electric current of control device when rupture of line, safeties fusing or connector come off Effect, first line supply of electrical energy of the control device by outside energy source by means of guiding electric current.Additionally, with guiding electric current First line the second circuit of guiding electric current in parallel be present, second circuit automatically connects when first line is interrupted Enter.In order to realize this, when first line is not interrupted, the second circuit of electric current is guided by means of being switched by transistor active Relay interrupts.If the voltage ratio between first line and the second circuit relatively shows that first line is interrupted, then microprocessor Interruption is performed, it is described to interrupt the shut-off for causing relay.
The content of the invention
The present invention is based on following purposes, and the reliable work(for providing control device in case of interferers is deposited in service voltage Energy.
The purpose is realized by the control device with feature according to an embodiment of the invention.
Therefore, realized according to the present invention, the purpose by control device by following manner, for entering to control device The first galvanoscopy unit is provided with first wire of the guiding electric current of row voltage supply, by means of first galvanoscopy Unit can detect the interruption of the first line of guiding electric current.By means of galvanoscopy unit, can simply it determine, guiding electricity Whether the first line of stream interrupts.In other words, the first line of electric current is being guided because broken cable, connector come off or protect Dangerous silk failure and when failing, guide the second circuit of electric current to ensure the voltage supply of control device without delay.Examined by electric current Verification certificate member, only detects the electric current flowed on the first wire of guiding electric current, cancels the comparison with the second circuit of guiding electric current.
Advantageously, it is provided with the second galvanoscopy unit in the second circuit of guiding electric current.Thereby, it is possible to guiding electricity The first line of stream and the second circuit are monitored with regard to failure independently of each other.
In a design, guide electric current first line and the second circuit by means of different plug-in connectors It is connected with control device.Filled by the single socket connection being connected in itself with control device for the circuit of each guiding electric current Guarantee is put, in plug-in connector failure or when coming off, the circuit of another guiding electric current is still all the time by providing and control device Connection supplies for its energy.
In a variations, each galvanoscopy unit is all disposed within after the input of control device, accordingly Plug-in connector is joined in the input.Control device is merely had in control device to reliably monitor energy supply Input after install two or four (inspection for including earth wire road) galvanoscopy unit additional, this is that cost is particularly advantageous Variations.
Especially, each galvanoscopy unit includes shunt resistance as current measuring unit.This shunt resistance is cost Very favorable part, the part can be simply integrated into control device.
As an alternative, each galvanoscopy unit includes reversed polarity protection device as current measurement device.Although here, need Reverse polarity protection present in control device itself is performed multiple so that its not only in the first energy feed path and And switch in the second energy feed path, but voltage interruption also can be reliably identified in this case.
In a flexible program, each voltage inspection unit includes comparator, and the comparator is in current measurement member The voltage occurred before and after part is compared and the microprocessor of the manipulation actuator of its output end and control device connects Connect.By this type and mode, microprocessor includes the information on the description below, may be deposited on the circuit of which guiding electric current Interrupting.Thus, interrupt and identified by following manner, comparator detection differential signal, situation of the differential signal in failure Under with smaller compared with the case of voltage supply is correct.If failure be present on the circuit of guiding electric current, then comparator Switching signal is exported to microprocessor.
Advantageously, in control device by means of when guiding the second circuit of electric current to run, being controlled especially simultaneously in control device In the case of one or more actuators of the automatic shifting transmission of connection formula manual transmission, manual transmission is in urgent operation Middle operation.Corresponding control routine can for example set limited gear to select and in the case of parallel manual transmission The gearshift that tractive force interrupts is set and generally set limitation to the power of actuator, actuator electric current limitation and/or Similar content.It is furthermore possible to propose, driver is alerted by following manner:Such as with visual manner and/or acoustically and/ Or send in a haptical manner etc. to be instructed.The urgent driving mode accordingly opened also can be total via information network, such as CAN Line, other control devices are notified so that it is also made a response to urgent driving mode by following manner if necessary:It is such as right Internal combustion engine carries out torque intervention with restraining moment.
--- also referred to as urgent operation --- promote to be set by control during middle operation when control device is in urgent driving mode Standby control actuator so that the power consumption of actuator is for example limited by being limited to the electrical power of actuator offer, so that Become extremely impossible in the line fault of the second circuit of guiding electric current.In addition, it can be set in urgent operation, in double clutches Control device, which is not taken, yet in the case of device speed changer jeopardizes safe measure, for example intersects gearshift.
Brief description of the drawings
The present invention allows have numerous embodiments.Diagram according to being shown in the drawings elaborates one of implementation Mode.Accompanying drawing is shown:
Fig. 1 show the current supply arrangement with redundancy for example in parallel manual transmission according to the present invention The embodiment of control device.
Embodiment
According to Fig. 1, actuator 2 of the operation of control device 1 with two motor 3, to operate parallel manual transmission The double clutch comprising two friction clutches.Actuator 2 individually, respectively includes the part of motor 3 by two herein Formed.The circuit and component of the control and electric current supply for actuator 2 are omitted for the reason for general view.Shown schematically only show to drive Dynamic device 4 and output stage 5.The microprocessor 6 being grounded at terminal GND undertakes control and the calculating process of control device 1.
Control device 1 is by means of guiding the first line 7 of electric current to be connected to the onboard power system, especially so-called of motor vehicles " terminal 30 " (input anode).The ground path 8 for belonging to first line 7 is connected to that so-called " terminal 31 " is (from battery The return line that negative pole or ground connection start).Energy is supplied by means of described 7,8 pairs of control devices 1 of circuit.Circuit 7 is by means of protecting Dangerous device F1 is protected.Before safeties F1, the branch of the second circuit 9 of electric current is guided, second circuit is by means of protecting Dangerous device F2 is protected.Second ground path 10 with " terminal 31 " is connected.
Guide electric current first line and the second circuit 7 and 9 and ground path 8 and 10 herein via not showing further The single plug-in connector gone out is connected with control device 1.Control device 1 corresponding input 11,12,13,14 it Afterwards, it is respectively equipped with shunt resistance 15,16,17,18 for each circuit 7,8,9,10.In this example, the First Line of electric current is guided The output end of the shunt resistance 15,17 of road and the second circuit 7,9 leads to reversed polarity protection device 19, and ground path 8,10 is dividing Lead to ground connection after leakage resistance 16,18.In each circuit 7,8,9,10, corresponding shunt resistance 15,17,16,18 is respectively by one Individual comparator 20,21,22,23 bridges.Thus, for example comparator 20 is measured before shunt resistance device 15 and in shunt resistance device The voltage present in the first line 7 of guiding electric current after 15.Interrupted if be not present in first line 7, then compare Device 20 identifies the poor > 0 of the voltage before and after shunt resistance device 15.But if there is rupture of line, safeties F1 fails or connector failure, then comparator 20 does not detect voltage from the voltage before and after shunt resistance device 15 Difference.
As an alternative, monitoring can only perform in the following cases:What the output stage 5 of motor 3 was switched on, to set whereby Determine recognition threshold so that possible measurement tolerance is on identifying no conclusive influence.Because comparator 2 leads to by its output end To the input Ana_In0 of microprocessor 6, so microcontroller 6 is it was determined that the failure of first line 7 whether there is.
Comparator 21,22,23 in circuit 8,9,10 works in an analog manner.Each comparator 21,22,23 is positioned at micro- On the single input Ana_In1 to Ana_In3 of processor 6, this supports microprocessor when each circuit 7,8,9,10 is different Device 6.
It is the circuit of relevant with the position of ignition switch guiding electric current by means of the safeties F3 circuits 24 protected, institute State circuit and control device 1 is activated when igniter is connected.If control device 1 is normally being transported after " igniter connection " Worked in row, then control device 1 fills via two supply lines 7,9 and affiliated two ground paths 8,10 with battery supply Put connection.In case of a fault, such as in the safeties F1 fusing of first line 7, feeder line fracture or the grafting of feeder line connect Connection device comes off, and the voltage in shunt resistance device 15 also declines.Microprocessor 6 can be carried out on its input Ana_In0-3 Diagnosis, which supply input failure of control device 1, and end output stage 5 or at least reduce electric current so that control is set Standby 1 nonoverload.This causes, and has no or only reduced current direction motor 3.Due to there is the second supply lines of guiding electric current 9, control device 1 can be supplied without delay after control device 1 detects failure.Thus, exist and avoid jeopardizing The possibility of the state of safety.Furthermore it is possible to system is placed in a state, so as in the case of the supply lines of no redundancy Also driver can be allowed to be driven in slow home mode (Limp home Modus), also to realize in this case Its target.This can be realized in the following cases, such as two clutches of double-clutch speed changer sequentially operate, and this is corresponded to Gearshift in the case of tractive force interruption.In control device by means of when guiding the second circuit 9 of electric current to be run in urgent operation Promote to control actuator by control device so that the power consumption of actuator limits by being limited to the electrical power of actuator offer System, so that the line fault of the second circuit 9 of guiding electric current becomes extremely impossible.In addition, can be set in urgent operation, In the case of double-clutch speed changer control device do not take yet it is any jeopardize safe measure, for example intersect gearshift.
By means of the solution of proposition, following states are eliminated, control device 1 undesirably becomes nothing in the state Electric current.Active control device can identify critical situation via functional software and be eliminated or be prevented by adequate measures Only.
It is this according to the present invention control device can not only be used advantageously in parallel manual transmission (PSG) and And it can also use in other automatic shifting transmissions (ASG) and/or with the transmission actuator controlled by control device Automatic clutch system (EKM, electric control clutch, starting clutch) in and/or the clutch actuator of motor vehicles in.
In addition, according to the control device of the present invention with being advantageously used in fail-safe the separation in operation of hybrid vehicle from The actuator of clutch, to separate internal combustion engine and motor, and for running the parking brake actuator in motor vehicles, and For controlling other actuators that should run to fail-safe as far as possible in motor vehicles, such as operating the biography of motor vehicles Other shifting elements, the actuator of such as jaw clutch in dynamic system.
Reference numerals list:
1 control device
2 actuators
3 motor
4 drivers
5 output stages
6 microprocessors
The circuit of 7 guiding electric currents
8 ground paths
The circuit of 9 guiding electric currents
10 ground paths
The input of 11 control devices
The input of 12 control devices
The input of 13 control devices
The input of 14 control devices
15 shunt resistances
16 shunt resistances
17 shunt resistances
18 shunt resistances
19 reversed polarity protection devices
20 comparators
21 comparators
22 comparators
23 comparators
24 circuits
F1 safeties
F2 safeties
F3 safeties
The input of Ana_In0 microprocessors
The input of Ana_In1 microprocessors
The input of Ana_In2 microprocessors
The input of Ana_In3 microprocessors

Claims (10)

1. one kind is used for the control device (1) for controlling actuator (2), wherein the control device (1) supplies with outside energy Device guides the second circuit (9) of electric current with guiding the described of electric current by means of guiding the first line (7) of electric current to connect First line (7) is connected in parallel between the power supply and the control device (1) of outside, guides electric current Second circuit spontaneous access or can use automatically when guiding the first line (7) of electric current to interrupt,
Characterized in that,
The first galvanoscopy unit (15,20) is provided with the first line (7) of guiding electric current, by means of described first Galvanoscopy unit can detect the interruption of the first line (7) of guiding electric current;
In normal operation, the control device (1) is via the first line (7) and second circuit (9) and the energy Measure feedway connection;
When the first line (7) fails, the control device (1) is by means of guiding the second circuit (9) of electric current to run, institute State control device (1) to run in urgent operation, the circuit of second circuit (9) of electric current is guided in the urgent operation Failure is extremely impossible.
2. control device (1) according to claim 1, it is characterised in that in second circuit (9) of guiding electric current It is provided with the second galvanoscopy unit (17,21).
3. control device (1) according to claim 1 or 2, it is characterised in that guide the first line (7) of electric current It is connected with the second circuit (9) by means of different plug-in connectors with the control device (1).
4. control device (1) according to claim 3, it is characterised in that the first galvanoscopy unit (15,20) and second Galvanoscopy unit (17,21) is arranged on after the input (11,12,13,14) of the control device (1), corresponding described Plug-in connector is joined in the input.
5. control device (1) according to claim 2, it is characterised in that the first galvanoscopy unit (15,20) and second Galvanoscopy unit (17,21) includes shunt resistance (15,17) as voltage measurement unit.
6. control device (1) according to claim 2, it is characterised in that the first galvanoscopy unit (15,20) and second Galvanoscopy unit (17,21) includes reversed polarity protection device (19) as current measurement device.
7. control device (1) according to claim 5, it is characterised in that the first current measuring unit (15,20) and second Current measuring unit (17,21) all includes comparator (20,21), the comparator to before the voltage measurement unit and it The voltage occurred afterwards is compared, and the output end of the comparator and the manipulation actuator of the control device (1) (2) microprocessor (6) connection.
8. control device (1) according to claim 1 or 2, it is characterised in that the control device (1) and the cause Dynamic device (2) is arranged in automatic clutch system and/or automatic shifting transmission, and/or the actuator (2) is configured to become Fast device actuator and/or clutch actuator, and/or control device (1) and actuator (2) are arranged in motor vehicle driven by mixed power Operation separates clutch so that internal combustion engine to be separated with motor, and/or control device (1) and actuator (2) stop to operate Car brake is set in the motor vehicle, and/or control device (1) and actuator (2) set to operate other shifting elements Put in the power train of vehicle.
9. control device (1) according to claim 8, it is characterised in that the control device (1) and actuator (2) It is arranged on to operate other shifting elements in the jaw clutch in power train.
10. control device (1) according to claim 1, it is characterised in that the urgent operation is included to the actuator (2) limitation of power and/or the limitation of electric current to the actuator (2), wherein the urgent operation becomes in self shifter Limited gear is set to select in fast device, and/or wherein described urgent operation is arranged on traction in parallel manual transmission The limited gear selection that power is shifted gears in the case of interrupting.
CN201480036241.XA 2013-06-26 2014-06-13 Control device with detection of interruption of a line conducting a current Active CN105339853B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102013212172.5 2013-06-26
DE102013212172 2013-06-26
DE102013214065 2013-07-17
DE102013214065.7 2013-07-17
PCT/DE2014/200259 WO2014206408A1 (en) 2013-06-26 2014-06-13 Control device for detecting the interruption of a current-carrying line

Publications (2)

Publication Number Publication Date
CN105339853A CN105339853A (en) 2016-02-17
CN105339853B true CN105339853B (en) 2018-02-13

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CN201480036241.XA Active CN105339853B (en) 2013-06-26 2014-06-13 Control device with detection of interruption of a line conducting a current

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JP (1) JP6388932B2 (en)
CN (1) CN105339853B (en)
DE (2) DE102014211355A1 (en)
WO (1) WO2014206408A1 (en)

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WO2014206408A1 (en) 2014-12-31
JP6388932B2 (en) 2018-09-12
DE112014003026A5 (en) 2016-03-31
DE112014003026B4 (en) 2024-01-04
CN105339853A (en) 2016-02-17
JP2016530492A (en) 2016-09-29
DE102014211355A1 (en) 2014-12-31

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