JP2020023303A - Current supply circuit for brake device with motor of vehicle - Google Patents

Abstract

To provide a current supply circuit for a brake device with a motor of a vehicle which has at least one storage capacitor.SOLUTION: A current supply circuit can be connected to a vehicle electric system of a vehicle and a brake device with a motor so as to be capable of charging at least one storage capacitor (58) with current of an electric system of a vehicle electric system, and outputting current supplied from at least one charged storage capacitor (58) to a motor of a brake device with a motor for at least the predetermined minimum time. The current supply circuit has a coil including a plurality of coil windings (64), and at least one storage capacitor (58) is arranged inside of a volume generated by the coil windings (64) of the coil.SELECTED DRAWING: Figure 2b

Description

  The present invention relates to a current supply circuit for a motorized brake device of a vehicle. The invention likewise relates to a motorized braking device for a vehicle. Furthermore, the invention relates to a method of manufacturing a current supply circuit for a brake device with a motor of a vehicle.

  From the prior art, at least one storage capacitor is additionally used in addition to the vehicle electrical system of the respective vehicle in order to energize the motorized braking device of the vehicle, for example an electromechanical brake booster. It is known.

  FIG. 1 shows a conventional circuit having at least one storage capacitor, which is well known to the applicant in the state of the art.

  A conventional circuit 10, shown schematically in FIG. 1, is configured with a circuit housing 12 having at least one storage capacitor 14 of the conventional circuit 10 disposed therein. The circuit housing 12 has a first contact portion 16a and a second contact portion 16b. As a motorized brake device 18, an electromechanical brake booster 18 having a brake booster housing 20 is contacted via a contact portion 21 a or 21 b respectively arranged on the brake booster housing 20. It is connected to parts 16a and 16b.

The conventional circuit 10 includes a first conductor 22 extending from at least one storage capacitor 14 to a first contact portion 16a and a second conductor extending from at least one storage capacitor 14 to a second contact portion 16b. 24. Inside the first conductor 22, a coil L and the first switch S _a is disposed. Furthermore the first conductor 22 second conductor 24 is connected to each other via a second switch S _b that are placed inside the first intermediate conductor 26 and the first intermediate conductor 26, the One capacitor _Ca is interconnected via a second intermediate conductor 28 disposed therein.

A B6 bridge 30 is arranged in front of the motor (not shown) of the electromechanical brake booster 18. Inside the brake booster housing 20, a third lead 32 extends from the first contact portion 21a of the brake booster housing 20 to the B6 bridge 30, and a fourth lead 34 extends through the brake booster housing 20. From the second contact portion 21b to the B6 bridge 30. A third switch _Sc and a fourth switch _Sd are arranged in series inside the third conductor 32 and can be used for "disconnecting" the conventional circuit 10. Further, the third conductor 32 and the fourth conductor 34 are connected to each other via a third intermediate conductor 36 and a fourth intermediate conductor 38 into which one capacitor _Cb or _Cc is inserted, respectively. I have.

  According to the present invention, there is provided a current supply circuit for a motor-equipped brake device having the components of claim 1, a motor-equipped brake device for a vehicle having the components of claim 5, and claim 11. The present invention provides a method for manufacturing a current supply circuit for a motor-equipped brake device of a vehicle, which has the above configuration requirements.

  The present invention facilitates miniaturization of a current supply circuit or miniaturization of a brake device with a motor configured to have such a type of current supply circuit. By arranging at least one storage capacitor according to the invention inside the volume created by the coil windings of the coil, the size of the current supply circuit or the size of the motorized braking device equipped with it is determined. Can be reduced. The invention furthermore provides a more compact design of the current supply circuit or of the braking device with the respective motor.

  By placing at least one storage capacitor inside the volume created by the coil windings of each coil, a compact storage capacitor coil module can be created. This type of storage capacitor coil module has a significantly reduced design space compared to the conventional design space of its individual components. Therefore, this storage capacitor coil module can be easily incorporated into a current supply circuit / brake device with a motor.

  In one preferred embodiment, the current supply circuit has at least one supercapacitor and / or at least one hybrid supercapacitor as at least one storage capacitor. Accordingly, low-cost, resilient capacitor types requiring relatively little design space can be used as at least one storage capacitor. The capacitor types listed here are also well suited to storing enough energy to operate a motorized braking device for at least a predetermined minimum time.

  Preferably, the current supply circuit is selectively switchable to at least a first switching state, a second switching state, and a third switching state, and at least via the current supply circuit in the first switching state. One storage capacitor can be charged by the electric current of the electric system of the vehicle, and the electric current of the electric system of the vehicle can be output to the motor of the brake device with the motor via the current supply circuit in the second switching state. Wherein the motor is operable in the standard operating mode, and the motor supplies current from the at least one charged storage capacitor for at least a predetermined minimum time via the current supply circuit in the third switched state. Output to the motor of the brake device with the motor, so that the motor operates in the standard operating mode or the fall mode for at least a predetermined minimum time. It is capable of operating at Kkumodo. Accordingly, even in the event of a malfunction and / or failure of the vehicle electrical system, the motor of the motorized braking device can be operated at least transiently in at least the fallback mode, whereby the mechanical An immediate / dramatic transition to the fallback level is avoided. Accordingly, in such a situation, there is no danger that the driver of the vehicle equipped with the motor-equipped brake device may be upset or excessively demanded. This is because the driver is at least transiently assisted by the motorized braking device when decelerating or braking the vehicle, and the mechanical fallback level is only established after a prior warning to the driver.

  The current supply circuit is preferably also selectively switchable to a fourth switching state, and at least one charged storage capacitor for at least a predetermined minimum time via the current supply circuit in the fourth switching state. Supply current from the vehicle and the electrical system current of the vehicle electrical system can be output to the motor of the braking device with the motor, so that the motor can be operated in the high-power mode for at least a predetermined minimum time. Accordingly, particularly in critical driving situations, a rapid and high pressure-generating dynamics can be ensured by operating the motor of the motorized braking device in the high-power mode. By energizing the motor simultaneously with both the supply current and the electrical system current, sufficient energy is available to improve the output of the motor. Accordingly, especially in critical driving situations, the increased output of the motor makes it possible to achieve a shortened brake stroke of the vehicle which is braked (together) by the braking device with the motor. Thus, the embodiment of the current supply circuit described here contributes to an improvement in brake comfort and an improvement in the safety standard of the vehicle equipped with it.

  The advantages described above are also embodied in a motorized braking device for a vehicle having such a control device. In this case, the current supply circuit is arranged inside the housing of the brake device with the motor. The integration of the current supply circuit inside the housing of the motorized brake device reduces the required design space and the assembly costs of assembling the current supply circuit and other components of the motorized brake device together. it can.

  For example, a brake device with a motor may be a hydraulic pump system having at least one pump, an electromechanical brake booster which can be mounted in front of a master brake cylinder of a hydraulic brake system, or a motor. It may be a piston-cylinder device with an electric or an electric parking brake. In this way, brake system components already conventionally standardly installed in vehicles can be used for embodying the present invention.

  In a preferred embodiment of the motorized brake device, the current supply circuit has a first wire connected to the coil and a second wire connected to at least one storage capacitor, The B6 bridge of the motor of the braking device is directly connected to the first conductor and the second conductor, and within the first conductor exactly one first switch and a second switch are arranged as switches. Is done. Accordingly, the total number of necessary switches may be relatively small.

  Preferably, the second conductor is without a switch. This also contributes to the downsizing of the embodiment of the motorized brake device described here.

  Similarly, a first intermediate conductor having a third switch inserted into the first intermediate conductor may extend from a first branch of the first conductor to a second branch of a second conductor. A second intermediate conductor having a first capacitor inserted into the second intermediate conductor may extend from a third junction of the first conductor to a fourth junction of the second conductor. . In this case, it is preferable that the first switch and the second switch are arranged inside the first conductor between the first branch point and the third branch point.

  As a preferred development, a third intermediate conductor with a second capacitor inserted in the third intermediate conductor extends from a fifth branch of the first conductor to a sixth branch of the second conductor. be able to. In this case, the first conductor and the second conductor may be interconnected only via a second intermediate conductor and a third intermediate conductor as intermediate conductors equipped with capacitors. The total number of capacitors required can thus be reduced.

  Furthermore, the advantages described above can also be created by implementing a corresponding manufacturing method for the current supply circuit for the motorized braking device of the vehicle. By the way, this manufacturing method can be developed in accordance with the above-described embodiments of the current supply circuit and the brake device with a motor.

  Next, other components and advantages of the present invention will be described with reference to the drawings. The drawings show:

2 is a conventional circuit having at least one storage capacitor. It is a schematic whole figure which shows one Embodiment of a current supply circuit. FIG. 3 is a schematic partial view illustrating an embodiment of a current supply circuit. It is a schematic whole figure which shows one Embodiment of the brake device with a motor. It is a typical fragmentary view showing one embodiment of a brake device with a motor. 4 is a flowchart illustrating an embodiment of a method for manufacturing a current supply circuit for a brake device with a motor of a vehicle.

  2a and 2b show a schematic overall view and a partial view of one embodiment of the current supply circuit.

  The current supply circuit 50, shown schematically in FIG. 2a, is designed for supplying current to a motorized brake device 52 of a vehicle / vehicle. In the example of FIGS. 2a and 2b, the motorized braking device 52 is, by way of example, an electromechanical brake booster 52 which can be / before a master brake cylinder (not shown) of a hydraulic braking system. It is. In particular, the motorized brake device 52 is such that the actuation of a motor (not shown) of the motorized brake device 52 allows / adjusts at least one adjustable piston of the master brake cylinder, whereby the master Positionable / arrangeable on the master brake cylinder such that at least one brake pressure of at least one wheel brake cylinder of the hydraulic brake system connected to the brake cylinder is / can be increased.

  However, it should be noted that the applicability of the current supply circuit 50 is not limited to this type of brake device 52 with motor. For example, the current supply circuit 50 is configured as a motorized brake device 52 for supplying current to a hydraulic pump system having at least one pump, a motorized piston / cylinder device or an electric parking brake. You may. Furthermore, the applicability of the current supply circuit 50 is not limited to a particular brake type or a particular vehicle / vehicle type.

  In the example of FIG. 2a, the current supply circuit 50 is applied from outside the housing 56 of the motorized brake device 52 as a component having its own circuit housing 54. However, the current supply circuit 50 may be integrated into the housing 56 (as a subunit of the motorized braking device 52).

Current supply circuit 50 includes at least one storage capacitor 58, a current supply circuit 50 (having an electrical system voltage U ₁₎ of the vehicle electrical system 60 at least one storage capacitor 58 charged by the electrical system current I ₁ as well as a possible, so that it can output to at least one charged accumulated (with the supply voltage U ₂₎ from the condenser 58 the motor supply current I ₂ at least a predetermined minimum time between motorized braking device 52 In addition, it is connectable / connected to the vehicle electrical system 60 of the vehicle and the motor of the brake device 52 with motor. Further, the current supply circuit 50 has a coil 62 (as an inductance) having a plurality of coil windings 64, and at least one storage capacitor 58 is located within the volume created by the coil windings 64 of the coil 62. Are located. This can be rephrased that the at least one storage capacitor 58 together with the coil 62 forms a so-called storage capacitor coil module 66 (only for the sake of clarity of the drawing, at least one storage capacitor 58 and the coil 62 are shown as spatially separated components in FIG. 2a).

  FIG. 2b shows an enlarged view of this storage capacitor coil module 66. As can be seen, at least one storage capacitor 58 is located inside coil core 68 and is surrounded / wrapped by coil winding 64. The at least one storage capacitor 58 may in particular be mounted inside the coil core 68 by a fixing part 70, which is schematically shown in FIG. 2b. The storage capacitor coil module 66 can be rephrased as an inductance energy package.

  The placement of at least one storage capacitor 58 within the volume created by the coil winding 64 of the coil 62 facilitates miniaturization of the current supply circuit 50. Further, the placement of at least one storage capacitor 58 inside coil 62 results in a compact design despite the relatively small design space of storage capacitor coil module 66. The fact that the coil winding 64 of the coil 62 is "utilized" as a "storage capacitor housing" for the at least one storage capacitor 58 makes it possible to satisfactorily save these types of protection components and nevertheless , Reliable protection of the at least one storage capacitor 58 can be guaranteed.

  At least one storage capacitor 58 may be, for example, at least one supercapacitor and / or at least one hybrid supercapacitor. As described above, as at least one storage capacitor 58 of the current supply circuit 50, a capacitor type having a relatively high output density and a relatively high energy density may be applied. The at least one storage capacitor 58 may be located within the volume created by the coil winding 64 of the coil 62 as a series circuit and / or a parallel circuit.

  In the embodiment of FIG. 2a, the circuit housing 54 of the current supply circuit 50 has a first contact portion 71a and a second contact portion 71b. The motored brake device 52 is connected to the first contact portion 71a of the circuit housing 54 via the first contact portion 72a of the housing 56, and the second contact portion 72b of the housing 56 and the intermediate switch device 74. Is connected to the second contact portion 71b of the circuit housing 54 through the second contact portion 71b. Further, the vehicle electrical system 60 is directly electrically connected to the third contact portion 72c and the fourth contact portion 72d of the housing 56 of the motor-equipped brake device 52.

In the circuit housing 54 of the current supply circuit 50, a first conductor 76 extends from the first contact portion 71a of the circuit housing 54 to the coil 62. Accordingly, a second lead 78 extends from the second contact portion 71b of the circuit housing 54 to at least one storage capacitor 58. As an optional supplement, a boost and / or buck chopper 80 is further connected to the first conductor 76. In the embodiment of FIG. 2a, the boost and / or buck chopper 80 has a first MOSFET M1 and a second MOSFET M2 inserted in a first conductor 76, and a second conductor 78 It is connected to the first conductor 76 via the second MOSFET M2. A first MOSFET M1 and the second MOSFET M2 embodying the bidirectional H-bridge, whereby it is possible to adjust the supply voltage _{U 2} to the desired / preferred level. Supply voltage U ₂ may be changeable especially depending on the ambient temperature. Even when at least one of the storage capacitor 58 is charged by boost and / or the step-down chopper 80 to a voltage output to at least one storage capacitor 58, can be adjusted to differ from the electrical system voltage U ₁ .

  As yet another optional supplement, the current supply circuit 50 can also include a control device 82, whereby the state of charge of the at least one storage capacitor 58 is monitored through management stored in the control device 82. Can be. The control device 82 may additionally be designed to communicate with at least one internal and / or external sensor 84. As at least one sensor 84, for example, at least one current intensity sensor, at least one voltage sensor, and / or at least one temperature sensor may be used. As an alternative or supplement, the control device 82 may be designed to exchange signals with other vehicle components via a vehicle bus such as, for example, CAN. Further, in the example of FIG. 2A, a fuse 86 is further inserted into the first conductive wire 76. Further, the second conductor 78 is grounded.

As a further optional development, the motorized braking device 52 also has contact portions 72 a and 72 b for providing a supply current I ₂ of at least one storage capacitor 58 and / or of the vehicle electrical system 60. for even contact portion 72c and 72d for providing an electrical system current _{I 1,} having a polarity protection portion 88 or 90 mis, respectively. In the example shown in which all contact portions 72a-72d of the housing 56 are respectively connected to the motor of the motorized brake device 52 by one conductor 92a-92d, the respective wrong polarity protection 88 or 90 is connected to the corresponding conductor. It has two MOSFETs M3 and M4 / M5 and M6 inserted into 92a and 92c, respectively. The MOSFETs M3 and M4 / M5 and M6 of the respective wrong polarity protection sections 88 or 90 may be wired in particular back-to-back. The conductors 92b and 92d extending in parallel with the respective wrong polarity protection portions 88 or 90 are preferably grounded.

  The intermediate switch device 74 connects the contact portions 71b and 72b via the conducting wire 94. Further, the intermediate switch device 74 has another conductor 96 connecting the conductor 94 to the contact portion 72c. A first switch S1 is inserted in conductor 94, whereas conductor 96 has a second switch S2. In this way, the entire circuit comprising the current supply circuit 58, the motorized brake device 52 and the intermediate switch device 74 requires a relatively small total number of circuit components.

  3a and 3b show a schematic overall view and a partial view of an embodiment of a brake device with a motor.

  The motorized braking device 100 schematically illustrated in FIG. 3a is configured such that at least one storage capacitor 58 has a volume defined by the coil winding 64 of the coil 62 of the current supply circuit 102, as schematically illustrated in FIG. 3b. It has a current supply circuit 102 disposed inside. In this way, the motorized brake device 100 can be made even smaller by having at least one storage capacitor 58 and coil 62 "integrated" into a common storage capacitor coil module 66. This facilitates the mounting of the motorized braking device 100 on and / or within the vehicle / vehicle.

  The applicability of the motorized brake device 100 is not limited to a particular brake type or a particular vehicle / vehicle type. The motorized brake device 100 may be, for example, a hydraulic pump system having at least one pump, an electromechanical brake booster that is / can be mounted on the master brake cylinder of the hydraulic brake system, It may be a piston and cylinder device or an electric parking brake. Thus, the "integration" of a number of different motorized braking devices 100 utilized for vehicle deceleration / braking into at least one storage capacitor 58 and coil 62 in a storage capacitor coil module 66 is achieved. It can be miniaturized in an easy way.

  At least one storage capacitor 58 may be, for example, at least one supercapacitor and / or at least one hybrid supercapacitor. The at least one storage capacitor 58 may be disposed within the volume created by the coil winding 64 of the coil 62 as a parallel circuit and / or a series circuit. 3a and 3b, at least one storage capacitor 58 can also be charged by the electric current of the vehicle electric system (not shown). Accordingly, the supply current of the at least one charged storage capacitor 58 may also be output to a motor (not shown) of the motorized braking device 100 for at least a predetermined minimum time.

The current supply circuit 102 shown in FIG. 3 a has a first conductor 104 connected to the coil 62 and a second conductor 106 connected to at least one storage capacitor 58. The B6 bridge 107 of the motor of the motorized braking device 100 is directly connected to the first conductor 104 and the second conductor 106. Within the first conductor 104 connecting the B6 bridge 107 of the motor of the motorized brake device 100 and the coil 62, at least one storage capacitor 58 from the motor of the motorized brake device 100 is "connected" or Exactly / only one first switch _Sac and a second switch _Sd are arranged (as switches), which selectively enable "disconnection" (thus FIGS. 3a and 3d). in design 3b current supply circuit 102, the switch _{S a} and _{S c} described above is "summarized" as the first switch _{S ac).} Thus, the total number of switches S _ac and S _d are inserted into the conductor path between the coil 62 and B6 bridge 107 is reduced compared to the prior art described above. Accordingly, the cost and required design space becomes more necessary for conventional for the switch S _a to become unnecessary in the current supply circuit 102 can be reduced.

Furthermore, there is no switch on the second conductor 106. A first intermediate conductor 108 extending from a first branch point P1 of the first conductor 104 to a second branch point P2 of the second conductor 106 has a third switch S inserted into the first middle conductor 108. _It still only has _b . Thus, the total number of switches in the current supply circuit 102 of FIGS. 3a and 3b is relatively small.

The current supply circuit 102 of FIG. 3a also includes a second intermediate conductor 110 having a first capacitor C _ab inserted into the second intermediate conductor 110, wherein the second intermediate conductor 110 is a first conductor. It extends from the third branch point P3 of 104 to the fourth branch point P4 of the second conductor 106. The first switch S _ac and a second switch S _d is preferably located inside the first wire 104 between the first branching point P1 of the third branching point P3. Further, the third intermediate conductor 112 having the second capacitor C _c inserted into the third intermediate conductor 112 is connected to the sixth branch P2 of the second conductor 106 from the fifth branch point P5 of the first conductor 104. It extends to a branch point P6. Accordingly, the current supply circuit 102 of FIG. 3a has only the second intermediate conductor 110 and the third intermediate conductor 112 as intermediate conductors 110 and 112 equipped with capacitors, via which the first conductor 110 and 112 are connected. 104 is connected to the second conductor 106. Thus the current supply circuit 102, (outside of the storage capacitor coil module 66) has only two capacitors _{C ab} and _{C c} (in this way, the current supply circuit 102 of FIG. 3a and 3b In designing, the prior art capacitors C _a and C _b described above are “collected” into a single capacitor C _ab ). This also contributes to downsizing of the current supply circuit 102 and reduction of its manufacturing cost.

Due to the reduction in the total number of switches S _ac , S _b and S _d of the current supply circuit 102 and the reduction in the total number of capacitors C _ab and C _d , the noise level and the power loss of the current supply circuit 102 are also compared with the prior art. Reduced. In addition, the current supply circuit 102 embodies a clearly more integrated design compared to the prior art, and thus can be more easily integrated into the motorized braking device 100.

All of the current supply circuits 50 and 102 described above are at least selectively switchable between a first switching state, a second switching state, and a third switching state. Via the current supply circuit 50 or 102 in the first switching state, at least one storage capacitor 58 is chargeable / charged by the electrical system current I ₁ of the vehicle electrical system 60, whereas the second switching circuit via the current supply circuit 50 or 102 in a state, operating the electrical system current I ₁ of the vehicle electrical system 60 is capable of outputting to the motor of the braking device 52 or 100 with the motor, thereby the motor in normal operation mode It is possible.

Via the current supply circuit 50 or 102 in the third switching state, the supply current I ₂ (only) from the at least one charged storage capacitor 58 for at least a predetermined minimum time is supplied to the motorized braking device 52. Alternatively, it can output to 100 motors so that the motors can operate in a standard operating mode or fallback mode for at least a predetermined minimum time. In particular, the motor of the braking device 52 or 100 with the motor that operates by the supply current I ₂ which is provided, in between the fallback mode of at least a predetermined minimum time, at a rotational speed of the motor is reduced as compared to the standard operation mode May be operable. As described above, the current supply circuit 50 or 102 can also be used as a fallback unit (backup unit), particularly for an emergency braking operation performed when a malfunction or failure of the vehicle electrical system 60 occurs. Can also be used. Due to the availability of the motorized braking device 52 or 100 for at least a predetermined minimum time, which is still realized in the event of a malfunction or failure of the vehicle electrical system 60, the motorized braking device 52 or 100 The driver of a vehicle equipped with is guided "gently" to a mechanical fallback level. An abrupt / leaky transition from full availability of the motorized braking device 52 or 100 to a mechanical fallback level is avoided. During the “calm” transition to the mechanical fallback level, the driver has additional time to adapt his braking behavior to a malfunction or failure of the vehicle electrical system 60.

All of the current supply circuits 50 and 102 described above are preferably also selectively switchable to a fourth switching state, at least via the current supply circuit 50 or 102 in the fourth switching state. during the minimum time, it is capable of outputting to the at least one charged supply current I ₂ and the motor vehicle electrical system 60 of the electrical system current I ₁ and the brake unit 52 or 100 with motor from storage capacitor 58 , Whereby the motor can be operated in the high power mode for at least a predetermined minimum time. The high output mode is understood to be a mode having a higher motor rotation speed than the standard operation mode. This means that, via the current supply circuit 50 or 102 in the fourth switching state, the electrical system voltage U ₁ of the vehicle electrical system 60 and the supply voltage U _{2 of} the at least one charged storage capacitor 58 In other words, it can be applied / applied to the motor of the brake device 52 or 100 with the motor operating in the high power mode. Thus with reference to need, the output of the braking device 52 or 100 of the motor with the electrical system current I ₁ and the supply current I ₂ (simultaneous) by energizing (or, the electrical system voltage U ₁ and the supply voltage U (By applying a total voltage equal to the sum of the _two ). Particularly in critical driving situations, the increased output of the motorized brake device 52 or 100 allows the vehicle equipped with it to be stopped more quickly and with a shorter brake stroke. This can also contribute to improving the applicability of the motorized braking device 52 or 100, independent of the ambient temperature (or even at relatively low temperatures).

  FIG. 4 is a flowchart illustrating an embodiment of a method of manufacturing a current supply circuit for a brake device with a motor of a vehicle.

  In a method step S1, a subsequent current supply circuit comprising at least one storage capacitor and a coil with a plurality of coil windings is connected, the current supply circuit being connected to the vehicle electrical system of the vehicle and to the motor of the motorized braking device. After that, at least one storage capacitor can be charged by the electrical system current of the vehicle electrical system and the supply current from the at least one charged storage capacitor is reduced for at least a predetermined minimum time by a motorized brake. It is configured to be able to output to the motor of the device.

  Prior to or together with method step S1, a method step S2 in which at least one storage capacitor is arranged inside the volume produced by the coil winding of the coil is also performed. Thus, method step S2 results in a relatively compact storage capacitor coil module that is assembled in method step S1 with relatively low operating costs. Accordingly, implementation of the manufacturing method described herein also creates the advantages described above. The manufacturing method described herein can also be implemented as (part of) a method of manufacturing a motorized brake device for a vehicle.

50, 102 Current supply circuit 52, 100 Brake device with motor 58 Storage capacitor 60 Vehicle electric system 62 Coil 64 Coil winding 104 First conductor 106 Second conductor 107 B6 bridge 108 First intermediate conductor 110 Second Intermediate conductor 112 Third intermediate conductor

Claims (11)

A current supply circuit (50, 102) for a brake device (52, 100) with a motor of a vehicle,
The current supply circuit (50, 102) has at least one storage capacitor (58), and the at least one storage capacitor (58) can be charged by an electric system current (I ₁ ) of a vehicle electric system (60). And the supply current (I ₂ ) from the at least one charged storage capacitor (58) can be output to the motor of the motorized braking device (52, 100) for at least a predetermined minimum time. Connected to or connected to the vehicle electrical system (60) of the vehicle and the motor of the brake device (52, 100) with the motor;
In such a current supply circuit having a coil (62) with a plurality of coil windings (64),
A current supply circuit, characterized in that at least one said storage capacitor (58) is arranged inside a volume created by said coil winding (64) of said coil (62).   The current supply circuit (50, 102) according to claim 1, wherein the current supply circuit (50, 102) comprises at least one supercapacitor and / or at least one hybrid supercapacitor as at least one storage capacitor (58). 102). The current supply circuit (50, 102) is selectively switchable to at least a first switching state, a second switching state, and a third switching state, and the current supply circuit in the first switching state At least one of said storage capacitors (58) can be charged by an electric system current (I ₁ ) of a vehicle electric system (60) via (50, 102), and said current supply circuit ( 50, 102), it is possible to output the electric system current (I ₁ ) of the vehicle electric system (60) to the motor of the brake device (52, 100) with the motor, whereby the motor operates in the standard operating mode. And at least one charged storage capacitor (5) for at least a predetermined minimum time via the current supply circuit (50, 102) in a third switched state. 8) can output the supply current (I ₂ ) from the motor to the motor of the braking device (52, 100) with the motor, so that the motor operates for at least a predetermined minimum time in a standard operating mode or a fallback mode The current supply circuit (50, 102) according to claim 1 or 2, operable with a current supply circuit. The current supply circuit (50, 102) is also capable of selectively switching to a fourth switching state, and at least for a predetermined minimum time via the current supply circuit (50, 102) in the fourth switching state. Meanwhile, the supply current (I ₂ ) from the at least one charged storage capacitor (58) and the electric system current (I ₁ ) of the vehicle electric system (60) are converted to the motor of the brake device (52, 100) with the motor. 4. The current supply circuit (50, 102) of claim 3, wherein the current supply circuit is capable of operating in a high power mode for at least a predetermined minimum time.   A motorized braking device (100) for a vehicle, comprising a current supply circuit (102) according to any one of the preceding claims.   The motorized braking device (100) may be a hydraulic pump system having at least one pump, an electromechanical brake booster that can be mounted in front of a master brake cylinder of a hydraulic brake system, or The motorized brake device (100) according to claim 5, which is a device, a motorized piston-cylinder device, or an electric parking brake. The current supply circuit (102) has a first conductor (104) connected to the coil (62) and a second conductor (106) connected to at least one of the storage capacitors (58). A B6 bridge (107) of a motor of the brake device (100) with the motor is directly connected to the first conductor (104) and the second conductor (106); _Motorized brake according to claim 5 or 6, wherein exactly one first switch ( _Sac ) and a second switch ( _Sd ) are arranged as switches within one conductor (104). Apparatus (100).   The motorized braking device (100) of claim 7, wherein the second conductor (106) has no switch. A first intermediate conductor (108) having a third switch (S _b ) inserted in the first intermediate conductor (108) is connected to the first intermediate conductor (104) from a first branch point (P1) of the first conductor (104). A second intermediate conductor (110) extending to a second branch (P2) of the second conductor (106) and having a first capacitor (C _ab ) inserted into the second intermediate conductor (110). ) Extends from a third branch point (P3) of the first conductor (104) to a fourth branch point (P4) of the second conductor (106), and is connected to the first switch (S _ac). ) And the second switch (S _d ) are disposed inside the first conductor (104) between the first branch point (P1) and the third branch point (P3). A braking device (100) with a motor according to claim 7 or 8. A third intermediate conductor (112) having a second capacitor (C _c ) inserted into the third intermediate conductor (112) is connected to the third conductor (104) from a fifth branch point (P5) of the first conductor (104). The first conductor (104) and the second conductor (106) extend to a sixth branch (P6) of the second conductor (106), and the intermediate conductors (110, 112) equipped with capacitors. The motor-equipped brake device (100) according to claim 9, wherein the second intermediate conductor (110) and the third intermediate conductor (112) are interconnected only via the third intermediate conductor (112). A method for manufacturing a current supply circuit (50, 102) for a brake device (52, 100) with a motor of a vehicle, comprising the following steps:
A current supply circuit (50, 102) having at least one storage capacitor (58) and a coil (62) with a plurality of coil windings (64) comprises a current supply circuit (50, 102) for a vehicle. After being connected to the vehicle electrical system (60) and the motor of the braking device (52, 100) with the motor, at least one storage capacitor (58) is connected to the electrical system current (I ₁ ) of the vehicle electrical system (60). And supply current (I ₂ ) from at least one charged storage capacitor (58) for at least a predetermined minimum time of the motorized braking device (52, 100). It is configured to be able to output to a motor (S1). In such a method,
The method of claim 2, wherein at least one said storage capacitor (58) is located (S2) inside a volume created by said coil winding (64) of said coil (62).

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