DE102005056444A1 - Component e.g. control gear, operating device for motor vehicle, has control device unit fixedly connected to stator unit of commuted motor, where device is transferred from action state to idle state by state control input - Google Patents

Abstract

The device has a control device (120) for an electronically commuted motor (150) with stator and rotor units. The device (120) has logic and output units and fixedly is connected to the stator unit. The stator unit has hall-sensors to determine position measurement signals that characterize relative position between the stator and rotor units. The device is transferred from an action state to an idle state using a state control input. An independent claim is also included for an application of an operating device for operating a component of a motor vehicle.

Description

The The present invention relates to an actuator for components, especially for Components of a motor vehicle. It belongs to the state of the art, diverse To actuate motor vehicle components by means of electric motors to control, such as in the context of electronic valve control systems (electromechanical valve train, short EVT) or of manual transmissions. The term manual gearbox summarizes automated transmissions, which rely on the manual transmission (HSG) and essentially similar Use technologies. This includes the electronic clutch management (EKM), the automated manual transmission (ASG), the uninterruptible gearbox (USG), the parallel gearbox (PSG) and the electric manual transmission (ESG).

Usually have such actuators one or more electric motors for actuating the respective components on. For most applications of actuators It is important that the electric motors reliable and can be operated maintenance-free. Therefore, brushless, i.e. electronically commutated electric motors (Electronically Commuted, EC motors for short). In these, the wear-prone power supply to Rotor of the electric motor via Sliding contacts or brushes accounted for for the rotor one or more permanent magnets are used. The Therefore, when using DC voltage necessary polarity reversal the coils of the electromagnets of the stator (short stator coils) takes place with EC motors automatically controlled by the rotational position determined via Hall probes of the rotor.

According to the state In the art, an EC motor is arranged at a distance therefrom Controlled system control device, usually in the also arranged the power output stages for Umpolung the stator coils are. The subject of further development is the power output stages together with the control logic, which the Lagemesssignale the Hall probes detected and from the control signals for the power amplifier derives to Umpolung, to relocate directly to or in the EC motor.

As a result, system improvements can be achieved in that the number of electrical connections between the system controller and the EC motor can be reduced. This is advantageous in many respects, since there is a reduction in the energy losses in the electrical connections to the power supply (cf. 1 , Compounds U, V and W) and lower noise emissions in the electrical system and the environment causes, as well as repercussions on the position measurement signals (see. 1 , Compounds H1, H2 and H3) minimized.

One Another advantage of this development is that a parent Control device no longer close to the engine, so z. B. gearbox must be mounted. Furthermore, one allows immediate the EC motor arranged drive device a uniform EC motor concept independent of which type of component, such as a gear or a clutch to be operated by the EC motor. The unit of driving device and EC motor is sometimes called Designated electronic motor.

According to the usual structure of an actuator (see FIG. 2 ) has this in addition to the EC motor with three integrated Hall probes on a motor-own control device, which is sometimes referred to as motor-integrated electronics (MiE). The control device is in turn divided into a logic device, a power device and a filter device for absorbing spurious radiation to increase the electromagnetic compatibility of the electronics (also called EMC buffer filter).

The logic device in turn has subunits for signal acquisition, signal processing, signal storage, signal generation and drivers for the commonly used field effect transistors of the output stage (short power amplifier FETs) in the power device (see. 7 ) on.

It At least two system variants can be distinguished when operating devices are used. In the first case (also referred to as application 1) is the actuator not part of a safety-critical system and can therefore be self-sufficient operate. A monitoring system for the actuator is not required in this case. The activation or deactivation the actuator can then directly, for. B. over the ignition respectively.

Possibly can be caused by the driving device a tracking function so that the EC motor turns off after switching off the ignition certain end position anfährt or certain parameters for the restart of the EC motor stored who can. Then switch the control device preferably in a state of rest.

In a second typical application of actuators (also referred to as application 2) these are part of a safety-critical system. Their control is therefore expediently carried out by a higher-level control device. So that in the driving device on a separate monitoring computer can be dispensed with, the parent control device also takes over the monitoring of the engine. The higher-level control device can - for example, in a dangerous situation or in a malfunction of the actuated vehicle component or the actuator itself - cause the actuator is transferred to a safe system state.

at A safe system state can be divided into two cases: In the case a) the EC engine - for example in case of failure of the on-board computer - as soon as possible to Standstill and then remain in the current position. In case b) a freewheeling mode of the EC-motor is effected thereby, that all final stage FETs are turned off, i. these go into one high-impedance operating state via and disconnect the stator coils from the power supply.

in the The state of the art becomes the actuators adapted to the two applications shown, from which a considerable adaptation effort - u. a. z. B. from development different control devices - results.

It Therefore, the object of the present invention is an actuating device of the type described to make at least for the two presented Use use cases leaves, the effort, the actuator to adapt to the application is minimized.

These The object is achieved by the The subject matter of claim 1 solved. Advantageous embodiments and further developments are the subject of the dependent claims. It It is noted, however, that not necessarily all advantages be achieved by all training.

The inventive device to operate of components of a motor vehicle has at least one electric motor on, in turn, at least one stator and at least having a rotor unit. According to the invention, at least one driving device for the Electric motor provided which at least one logic device and at least one power device. The driving device is according to the invention with connected to the stator. Furthermore, the actuating device according to the invention via at least a single state control input from a first state be converted into at least a second state. Preferably, the Electromotor electronically commutated, i. an EC motor. Preferably the stator unit has at least three position measuring sensors, preferably Hall sensors, for the determination of position measurement signals, which the Characterize the relative position between the stator and the rotor unit.

The Actuator according to the invention is beneficial in many ways. On the one hand eliminates the Need to adapt the control device to the application the actuator. In addition, the number is through the individual state control input of connections between the parent Control devices and the monitored and controlled actuators minimized. This also reduces the likelihood of malfunction of the actuator through cable breaks. Further can be a severed connection to the single state control input detected more reliably become. This can be avoided that the actuator unnecessarily is converted into a backup state.

When actuator is understood in the context of this invention, a device which in a defined manner to a predetermined component of a motor vehicle acts. Preferably, it is a device that in mechanical way to the corresponding component of the motor vehicle acts, such as one or more electric motors, the operate the components in a defined manner.

When Control device for the electric motor becomes - in particular, but not exclusively - an institution understood, which is essentially the control of the electric motor, that is called Regulation of the power delivered to the electric motor depending on the rotational position of the rotor unit relative to the stator makes.

When solid compound is understood in the context of this invention, that the control device - in Contrast to a mere Cable connection - in stronger or stronger Connection with at least the stator of the electric motor is. By this arrangement, a plurality of longer electrical connections between the drive device or a part of the drive device and the electric motor can be saved.

In the context of the invention, a state control input is understood as a section of the actuating device, wherein the application of this section with predetermined values of a physical quantity brings about the transfer of the actuating device into predetermined states. Preferably, this physical quantity is the electric current or the electric voltage. It However, variables such as the force or the hydraulic pressure are conceivable, which control the state control input mechanically, for example via a switch.

When State of the actuator is understood in the context of the invention whose operating condition. This let yourself by at least one of the operating parameters such as power and current consumption of the electric motor, speed of the electric motor, Direction of rotation of the electric motor, rotational position of the electric motor, Temperature of the electric motor, but also properties of the control device like signal states in the logic device and the like. A change of the operating state means that at least one of said Properties changes.

In A preferred embodiment of the present invention is at least a decision device is provided, which at least with the state control input connected is. The decision maker operates in dependence at least one property of the physical quantity with which the state control input is applied, i. abstract of signal present there (state control signal), the transfer of the actuator from the first to the second state.

In a further preferred embodiment the invention is the property of the state control signal their change is detected by the decision maker and which the transfer of the actuator from the first to the second state, a group of signal properties taken from the signal level, the signal frequency, periodic Signal pattern, singular Signal pattern, frequency spectrum, signal rise and fall time, the signal duty ratio and the like.

In a further preferred embodiment of the present invention the decision maker sees at least one predetermined decision criterion, prefers several predetermined decision criteria. A decision criterion sets in the context of this invention for predetermined cases of over- or Falling below predetermined thresholds of the property of the state control signal predetermined, by different operating parameters of the Actuating device distinguishing second states firmly, in which the actuator when one of these cases is transferred.

That the decision criteria set predetermined change patterns of the state control signal detected by the decider wherein the decision means is due to the change pattern recognition the transfer of the actuator in a second state causes. In particular, allow the decision criteria the distinction of change patterns the state control signal and allow the actuator with different patterns of change in different second states, which is due to different operating parameters of the actuator distinguish, is transferred. The decision device preferably has at least one logic gate, preferably a combination of logic gates.

In a further preferred embodiment the logic device has at least one signal detection device, a memory device, a computing device and a driver device. In a further preferred embodiment of the present invention Invention, the power device with at least one inverter device Power switching devices, wherein as a power switching devices preferably power field effect transistors are provided.

In a further advantageous embodiment of the present invention is the first state of the actuator an action state and the second state of the actuator a hibernation. As an action state of the actuator is understood that power is delivered to the electric motor, as a resting state the actuator however, that no power is delivered to the electric motor.

In another preferred embodiment is the first state of the actuator a Action state and the second state of the actuator a backup state. As a security state is understood that the electric motor causes through a parent Control device, a predetermined, to the application of actuator adapted operating state occupies. When transitioning to the backup state controls the parent Control device, the operating parameters of the actuator in a predetermined manner, i. the higher-level control device causes a fuse state transition function, at the risk of damage the actuated Vehicle component or the actuator to minimize itself.

In a further preferred embodiment, the control device at the transition to the idle state causes at least one idle state transition function. As idle state transition function is understood in the context of the invention that the drive means the Be operating parameters of the actuator in a predetermined manner before switching off the power output to the electric motor controls.

Preferably is the hibernation transition feature taken from a group, which is the start of a predetermined End position by the electric motor, the storage of at least one predetermined Parameters in dependence the position measurement signals or the position measurement signals themselves in the memory device and the like.

In a preferred embodiment The control device follows the present invention effecting the hibernation transfer function even in a driver idle state. In another preferred embodiment is the actuator of a parent Control device controlled and / or monitored. Preferably controls the parent Control device, the actuator at least over the single state control input.

In a further advantageous embodiment of the present invention Invention causes the parent Control device at the transition the actuator at least one backup state transition function in the backup state.

Prefers is the backup state transition function taken from a group which the braking of the electric motor, preferred within a short time interval, the freewheel of the electric motor, switching off the power switching devices and the like contains.

In a further preferred embodiment switches the driver during execution of the Fuse state transition function the driver device delayed in time. This is preferred delay adjustable.

In a preferred embodiment the braking of the electric motor is caused by the fact that the power switching devices Short circuit the coil circuits of the stator unit. In another preferred embodiment the freewheel of the electric motor is caused by the fact that the power switching devices Open the coil circuits of the stator unit.

In a further preferred embodiment the driver goes through after effecting the fuse state transition function the parent Control device in a driver rest state via. When Driver quiet state is understood to be at least Parts of the drive device are de-energized.

In a further preferred embodiment the rotor unit is fixed to a mechanical power transmission device connected. Preferred is an actuator according to the invention for manual transmission, Camshaft adjustment systems, electronic clutch management systems and the like.

Further Advantages and embodiments The present invention will be apparent from the accompanying figures.

In this demonstrate:

1a an application example of a prior art actuator;

1b an application example of an embodiment of the actuating device according to the invention;

2 the structure and the interfaces according to an embodiment of the actuating device according to the invention;

3a an embodiment of the actuating device according to the invention for a self-sufficient application (application 1);

3b an embodiment of an actuating device according to the invention for an application with higher-level control device (application 2);

4 an interface legend of the embodiments according to 3a and 3b ;

5 a symbolic diagram for an embodiment of a logic device according to the invention;

6 the truth table of the driver device 5 ; and

7 a block diagram for an embodiment of a power device according to the invention for driving by the logic device according to 5 ,

1a shows an actuating device according to the prior art. This points, as in 1a symbolized by the lower rectangle, an EC motor 150 with three Hall sensors as position sensors. As upper big rectangle in 1a is a system controller 400 shown, in addition to the power output stages 122 for the EC motor 150 are housed.

As in the in 1a the application of an actuating device according to the prior art, the system control device 400 spaced apart from the EC motor 150 is arranged between these two devices numerous electrical connections are provided in 1a are indicated as vertical lines.

For example, the electrical connections labeled U, V and W symbolize the power connections to the stator coils of the EC motor 150 , To the right, power supply connections for the Hall sensors are provided with "5V" and "GND". Still right in 1a the electrical connections H1, H2 and H3 are shown showing the position measurement signals from the EC motor 150 to the system controller 400 transfer.

As already shown, this structure brings with the sometimes longer connecting lines between the system controller 400 and the EC motor 150 numerous disadvantages with it, such as the energy loss over the ohmic resistors of the power connection lines U, V and W. Furthermore, when switching the voltages on these lines noise signals radiated into the electrical system, which sometimes the Lagemesssignale H1, H2 and H3 can be disturbed.

The other interfaces of the system control device 400 are above the horizontal lines adjacent to their left edge 501 and 502 and arranged at the upper edge arrows 510 and 530 symbolizes. Here are the connections 501 and 502 the supply ports of the system controller 400 , With the reference number 510 is, as symbolized by the thicker arrow line, a so-called CAN bus line (Control Area Network) indicated, which has a plurality of control and signal lines. The right upper arrow 530 symbolizes the interface of the system controller 400 to the ignition.

An embodiment of an inventive development of the actuator is shown in 1b shown. In this case, the reference numeral 100 the symbolized by the complete lower rectangle actuator according to the invention. This is divided into the indicated by the lower rectangle EC motor 150 , which also has three Hall sensors as position measuring device, as well as in the direction indicated by the directly overlying rectangle control device 120 , This is in turn divided - symbolized by the subdivision by means of the dashed line - in a logic device 121 and a power device 122 ,

The representation in 1b expresses that the driving device 120 and the EC motor 150 are arranged directly together spatially, or more precisely, that the driving device 120 fixed to the stator unit of the EC motor 150 connected is. As can easily be seen, longer power connection lines U, V and W for controlling the stator coils and longer lines for transmitting the position measurement signals, ie, for example, the connections H1, H2 and H3, are omitted in this advantageous development 1a , The problem of energy losses in the connecting lines or the noise emissions can thereby be largely avoided. Furthermore, the actuating device according to the invention 100 less susceptible to vibrations, which not infrequently lead to contact losses at contact points or at plug connections of the power, measurement and control lines or even cable breaks between the system control device 400 and the EC motor 150 being able to lead.

As interfaces of the control device 120 are on their left side the supply connections 501 and 502 provided and on its upper side the CAN bus 510 and the state control input according to the invention 520 , The latter connects the control device 120 with the symbolized by the upper rectangle, higher-level control device 300 ,

Over the CAN bus 510 can operating parameters, such as the current speed of the electric motor 150 to the higher-level control device 300 be transmitted. This is the higher-level control device 300 in the application of the actuator shown here 100 in a safety-critical system capable of operating the actuator 100 centrally monitored.

In addition, the higher-level control device 300 Capture data from other components of the motor vehicle and decide by an intended processor or computing device on whether a safety-critical state has occurred. If this is the case, then the higher-level control device 300 the actuator 100 via the individual state control input according to the invention 520 into a safe system state.

In 2 are the structure of an actuator according to the invention 100 as well as their interfaces for two applications described below. The outermost rectangle 100 indicates the parent unit the actuator on. The right inner rectangle symbolizes the EC motor 150 with the Hall sensors. To the left of it, the rectangle of wide line width designates that with the EC engine 150 firmly connected control device 120 ,

The driving device 120 divided in turn into the upper narrow rectangle, which is a filter device 123 for interfering radiation from and / or into the vehicle electrical system and from the neighboring EC motor 150 represents. The filter device filters 123 in particular disturbances from the power supply lines of the actuator 100 out.

The lower left, partially dashed rimmed rectangle indicates the logic device 121 , The lower right rectangle within the driver 120 identifies the power device 122 which the EC motor 150 directly drives. The logic device 121 takes over functions of the signal acquisition, in particular the position measurement signals of the Hall sensors of the EC motor 150 , Furthermore, a computing device (in 5 With 1216 designated) within the logic device 121 which is capable of processing the position measurement signals and other control signals. For example, correction operations can also be applied to the position measurement signals.

The logic device determines from the position measurement signals of the Hall sensors 121 Drive signals for a driver device (in 5 With 1217 referred to) still part of the logic device 121 is. The driver device controls the power device 122 at. The power device 122 then takes the polarity reversal of the stator coils of the EC motor 150 before, in each case suitable moment depending on the rotational position of the rotor unit.

The power device 122 It has a built-in from power FETs as a power switching devices inverter, such as in 7 is shown. An embodiment of a logic device according to the invention 121 is in 5 shown.

In the 3a and 3b it is shown that the actuating device according to the invention 100 According to the task can be used for the two main applications of actuators. It shows 3a an actuator 100 consisting of the EC motor 150 and the driving device fixedly connected to it 120 in a non-safety critical system. That is, the actuator 100 does not need to be monitored or controlled by a higher-level control or monitoring device in this case. Although the operating parameters of the actuator 100 over the CAN bus 510 be queried; the state control input 520 is however directly with the ignition 530 connected.

In the first application of the actuator 100 can by the driving device 120 a caster function can be implemented so that the EC motor 150 after switching off the ignition 530 a certain end position anfährt. Additionally or alternatively, especially for re-activating the actuator 100 - whose current operating parameters are still stored at the moment of switching off. After carrying out these idle state transition functions or follow-up functions, the control device switches 120 even in the driver dormancy state.

In 3b In contrast, the second application is shown, in which the actuating device according to the invention 100 is used within a safety-critical system. Therefore, the actuator becomes 100 from the upper control symbolized by the upper rectangle 300 monitored and controlled. In this case, in the higher-level control device 300 also other control and monitoring functions in hardware and software to be implemented, which is not the considered actuator 100 affect.

Over the CAN bus 510 become the higher-level control device 300 current operating parameters of the actuator 100 transmitted. The control of the actuator 100 takes place according to the invention, as well as in 3a illustrated first application, via the individual state control input 520 ,

Unlike in the 3a illustrated example in which the in the driving device 120 implemented tracking function the transition of the actuator 100 determined in a state of rest, must be in the in 3b illustrated second application for the actuator 100 in a safety-critical system, the higher-level control device 300 to be able to transfer the actuator 100 to effect a backup state.

This may - depending on the application - the backup state characterized by the fact that the EC motor 150 , For example, in the event of a failure of the on-board computer, brought to a standstill as soon as possible and then remains in the current position. However, in another case, it may be desired that the EC motor 150 goes into a freewheeling mode. This is also alone on the individual state of the invention control entrance 520 the actuator 100 causes.

In this case, preferably a decision device according to a preferred embodiment of the actuating device according to the invention 100 sure that - depending on the application - the control device 120 directly, for example via an imple mented idle state transition function, causes the transition to the idle state. Otherwise, the control is by a higher-level control device 300 recognized as such in a safety-critical system and this causes via the individual state control input according to the invention 520 as in 3b indicated the transfer of the actuator 100 in a backup state. Preferably, the decider means comprises a combination of logic gates.

In the first application of the actuator 100 , as in 3a illustrated, the driving device 120 work independently. The state control input 520 can directly with the ignition 530 be connected, and within the driver 120 implemented idle state transition function (trailing function) causes maintenance of the power supply of the EC motor 150 after switching off the ignition 530 ,

The re-activation of the system takes place in the first application according to 3a via the ignition or via a re-activation or wake-up signal, which is the logic device 121 when switching on the supply itself can generate.

Furthermore, the logic device 121 in the first application according to 3a After switching off the ignition via a self-holding function or a self-holding signal to ensure that the system state or the power supply of their driver device is maintained. This can cause a lag of the EC motor 150 will be realized.

3b shows an application example of an actuator 100 in a safety-critical system. Therein, the higher-level control device 300 the driving device 120 put in the de-energized state of rest and thereby also the follow-up of the control device 120 after switching off the ignition. The optional self-holding of the control device 120 is inactive in this case. That is, the driving device 120 is switched off via the state control input 520 "EN / DI" is automatically set to the safe state, such as in the case of a system reset.

Preferably, the logic device 121 the driving device 120 designed so that even a cable break or a severing of the connection between the parent control device 300 and the state control input 520 causes a transition of the actuator in the security state. Im in 3b shown safety-critical system, it is necessary, the control device 120 for the re-operation of the actuator 100 actively release from the outside.

4 shows an interface legend for the in 3a and 3b Both applications shown application 1 and application 2. Here comes the in 3a illustrated application 1 of the actuator 100 in an autonomously operated system with only two supply lines "U _Batt " and "GnD", the state control input "EN / DI" according to the invention and the two two-wire CAN bus control lines "CAN (1st)" and "CAN (2nd)" out.

For the application 2 of the actuator 100 in a safety-critical system with a higher-level control device 300 Two additional digital speed inputs "n1", "n2" and a starter signal line "Kl.50" are implemented.

In 5 is an embodiment of a logic device according to the invention 121 shown as a symbolic circuit diagram. This has, as essential interface, the battery voltage "U _Batt " supplied on the top left to the power supply, characterized by the supply line 501 as well as the associated mass 502 , on. Below "U _Batt " is the state control input according to the invention 520 - here with "EN / DI" - represented.

The logic device 121 to 5 has as main components the symbolized in the middle lower area as a square computing device 1216 and the driver device shown as a rectangle in the right area 1217 on.

The state control input 520 is via a capacitive noise filter with the input of the "OR" gate 1215 connected. The second input of the "OR" gate 1215 is from the computing device 1216 controlled by the signal "PwH", which in case of a shutdown of the actuator 100 via the state control input 520 "EN / DI" sure that the internal state control signal 1218 "En / Di" remains logical "1". This allows the computing device 1216 Define how long the system state for the caster or the hibernation function is maintained.

If the length of the follow-up time by the computing device 1216 - Are more accurately determined by the latch signal "PwH", is the linkage of the internal state control signal 1218 "En / Di" by means of the "or" and "and" gates at the "BRK" and "DIS" inputs of the driver device 1217 ensures that in these cases the backup state transition functions of the driver device 1217 not be effected.

However, if the higher-level control device 300 the transition of the actuator 100 In a fuse state, signals must be generated that take precedence over the self-holding signal "PwH." This can - depending on the application - eg via the signal "DIS" (for Disable) as the input signal of the driver device 1217 be effected, which is a freewheel of the EC motor 150 can trigger.

According to the in 6 shown truth table of the driver device 1217 has a logical "0" at the "DIS" input, or as shown in the truth table, a logical "1" of the negated "DIS" signal results in that the in 7 shown high-side amplifier (HS1, HS2, HS3), which connect the stator coils to the positive supply voltage, and the low-side FETs (LS1, LS2, LS3), which connect the stator coils to ground, are turned off. This will cause the stator coils of the EC motor 150 separated from the supply voltage high impedance, whereby a freewheeling of the motor is possible.

The other security state transition function already mentioned, namely the "emergency stop" of the actuating device, becomes apparent in the exemplary embodiment 5 caused by the "BRK"("brake", that is brake signal). If the negated "BRK" signal has the logical value "1", as in the truth table in FIG 6 This has the consequence that the low-side FETs LS1, LS2 and LS3 after 7 be turned on. That is, the three stator coils or stator phases are short-circuited. As a result, the rotor unit is braked over the induced in the stator coils reverse voltages.

Will an actuator 100 with a like in 5 illustrated logic device 121 used in a safety-critical system, so the computing device 1216 remain disabled, that is, the "PwH" signal is permanently "0", and the internal state control signal 1218 "En / Di" corresponds to the signal at the state control input 520 "EN / DI".

Nevertheless, to perform the fuse state transition functions "emergency stop" or "freewheeling" must be ensured that the field effect transistors of the driver device 1217 be energized for driving the power amplifier for a predetermined overrun time, either because the output driver in the case of freewheel all are turned off, or in the case of emergency stop, the low-side driver must short-circuit the stator by means of the power amplifier FETs.

This is in 5 the delay circuit 1212 is provided, which maintains the supply of the low-side driver via the voltage "VBB" until the rotor unit has been sufficiently braked by shorting the stator coils by the low-side FETs by means of the low-side driver Delay time due to an externally available capacity 1219 adjustable.

7 shows a simplified circuit diagram of the power amplifier with the high-side FETs (HS1, HS2, HS3) and low-side FETs (LS1, LS2, LS3), which make the polarity reversal of the stator coils. In the embodiment according to 7 three stator coils A, B and C are provided, which are symbolized in the simplified circuit diagram by their electrical equivalent elements, ie their resistances and their inductances R _A -L _A , R _B -L _B and R _C -L _C.

The three stator coils A, B and C are connected in a star shape with one of their coil ends. The respective other coil end can be connected via one of the output stage FET pairs HS1-LS1, HS2-LS2 and HS3-LS3 either to ground via the respective low-side FET or via the respective high-side FET to the battery voltage potential U _Bat become. This determines the direction of the currents i _A , i _B , i _C through the stator coils and thus the direction of the magnetic fields of the stator coils. The gates of the output stage FETs are thereby driven by the driver device, wherein the control device makes the switching on and off of the respective output stage FETs at the appropriate moment as a function of the rotational position of the rotor unit determined via the Hall sensors.

100

actuator (Electronic Engine)

120

driving means (Motor integrated electronics)

121

logic device

1211

comparator

1212

delay circuit

1215

logic gates

1216

computing device (Microcomputer)

1217

driving means

1218

internal Condition control signal ("En / Di")

1219

Selectable capacity

122

power device

123

filtering device (EMC buffer filter)

150

EC motor (Electronically Commuted Motor)

300

parent control device

400

System controller

501

Supply voltage ("U _batt ")

502

Dimensions ( "GND")

510

CAN bus

520

single State control input ("EN / DI")

530

ignition

Claims (25)

Contraption ( 100 ) for actuating components of a motor vehicle with at least one electric motor ( 150 ), which has at least one stator unit and one rotor unit, at least one drive device ( 120 ) for the electric motor ( 150 ), which at least one logic device ( 121 ) and at least one power device ( 122 ), wherein the drive device ( 120 ) is fixedly connected to the stator unit, and wherein the actuating device ( 100 ) at least via a single state control input ( 520 ) can be converted from a first state to at least a second state. Actuating device ( 100 ) according to claim 1, characterized in that at least one decision device is provided, which at least with the state control input ( 520 ) and dependent on at least one property of the physical quantity, with which the state control input is applied, ie abstract of the signal present there (state control signal), the transfer of the actuator ( 100 ) is effected from the first to the second state. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the property of the state control signal whose change is detected by the decision device and which the transfer of the actuator ( 100 ) from the first state to the second state is taken from a group of signal characteristics including signal level, signal frequency, periodic signal patterns, singular signal patterns, signal frequency spectrum, signal rise and fall time, signal duty cycle and the like. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the decision device provides at least one predetermined decision criterion, preferably a plurality of predetermined decision criteria, predetermined for predetermined cases of exceeding or falling below predetermined threshold values of the property of the state control signal, characterized by different operating parameters of the actuator second States in which the actuator is transferred when one of these cases occurs. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the decision device at least one logic gate ( 1215 ), preferably a combination of logic gates. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the electric motor ( 150 ) is electronically commutated. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the stator unit has at least three position measuring sensors, preferably Hall sensors, for determining position measuring signals which characterize the relative position between the stator unit and the rotor unit. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the driving device ( 120 ) at least one filter device ( 123 ) for absorbing disturbance radiation. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the logic device ( 121 ) at least one signal detection device, a memory device, a computing device ( 1216 ) and a driver device ( 1217 ) having. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the power device ( 122 ) has at least one inverter device with power switching devices, wherein as power switching devices preferably power field effect transistors are provided. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the first state of the actuating device ( 100 ) an action state and the second state of the actuator ( 100 ) is a resting state. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the first state of the actuating device ( 100 ) an action state and the second state of the actuator ( 100 ) is a backup state. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the driving device ( 120 ) causes at least one idle state transition function when transitioning to the idle state. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the idle state transition function is taken from a group which indicates the approach of a predetermined end position by the electric motor ( 150 ), which stores at least one predetermined parameter depending on the position measuring signals or the position measuring signals themselves in the memory device and the like. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the driving device ( 120 ) transitions to a driver idle state even after the idle state transition function itself is effected. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the actuating device ( 100 ) from a higher-level control device ( 300 ) is controlled and / or monitored. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the higher-level control device ( 300 ) the actuator ( 100 ) at least also via the individual state control input ( 520 ) controls. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the higher-level control device ( 300 ) at the transition of the actuator ( 100 ) causes at least one fuse state transition function in the fuse state. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the fuse state transition function is taken from a group which controls the braking of the electric motor ( 150 ), preferably within a short time interval, the freewheel of the electric motor ( 150 ), the shutdown of the power switching devices and the like. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the control device ( 120 ) during the execution of the save state transition function the driver device ( 1217 ) switches off with a time delay, wherein the delay is preferably adjustable. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the braking of the electric motor ( 150 ) is caused by the power switching devices shorting the coil circuits of the stator unit. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the freewheel of the electric motor ( 150 ) is effected by the power switching means opening the coil circuits of the stator unit. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the driving device ( 120 ) after the fuse state transition function has been effected by the higher-level control device ( 300 ) transitions to a driver idle state. Actuating device ( 100 ) according to at least one of the preceding claims, characterized in that the rotor unit is fixedly connected to a mechanical power transmission device. Use of an actuator ( 100 ) according to at least one of the preceding claims for actuating a component selected from a group of components including transmission, camshaft phasing systems, electronic clutch management systems and the like.