阅读说明：本技术 用于选择性地致动机动车辆中的dc马达的电路 (circuit for selectively actuating a DC motor in a motor vehicle ) 是由 卢卡斯·普瑞瑟尔 霍尔格·缪勒 艾哈迈德·西纳 丹尼·乔治·韦拉罗摩卡拉于利 于 2019-05-28 设计创作，主要内容包括：本发明涉及一种用于通过半桥(4、5)选择性地致动在机动车辆中的以直流电操作的驱动元件(1、2)的电路。根据本发明,该电路被设计用于选择性地致动八个驱动元件(1、2)以从外部和/或从内部分别锁定和解锁机动车辆的四个车门。该电路包含九个半桥(4、5),其中九个半桥(4)中的八个的输出各自连接到八个驱动元件(1、2)中的一个的第一极,并且第九半桥(5)的输出连接到八个驱动元件(1、2)的所有第二极。(the invention relates to a circuit for selectively actuating a drive element (1, 2) operated with direct current in a motor vehicle by means of a half bridge (4, 5). According to the invention, the circuit is designed for selectively actuating eight drive elements (1, 2) for locking and unlocking four doors of the motor vehicle from the outside and/or from the inside, respectively. The circuit comprises nine half-bridges (4, 5), wherein the outputs of eight of the nine half-bridges (4) are each connected to a first pole of one of the eight drive elements (1, 2), and the output of the ninth half-bridge (5) is connected to all second poles of the eight drive elements (1, 2).)

1. Circuit for selectively actuating a drive element (1, 2) operating with direct current in a motor vehicle by means of a half bridge (4, 5),

It is characterized in that the preparation method is characterized in that,

The circuit for selectively actuating eight drive elements (1, 2) is designed for locking and unlocking four vehicle doors of the motor vehicle from the outside and/or from the inside, respectively, wherein the circuit has nine half-bridges (4, 5), wherein the outputs of eight of the nine half-bridges (4) are each connected to a first pole of one of the eight drive elements (1, 2), and the output of a ninth half-bridge (5) is connected to all second poles of the eight drive elements (1, 2).

2. Circuit for selectively actuating a drive element (1, 2) operating with direct current in a motor vehicle by means of a half bridge (4, 5),

It is characterized in that the preparation method is characterized in that,

The circuit for selectively actuating eight drive elements (1, 2) is designed for locking and unlocking, respectively, four vehicle doors of the motor vehicle from the outside and/or from the inside, wherein the circuit has six half-bridges (4, 5'), wherein the outputs of four of the six half-bridges (4) are each connected to the second pole of each pair of drive elements (1, 2) arranged in the same vehicle door, the output of the fifth half-bridge (5) is connected to all first poles of the four drive elements (1) for locking and unlocking, respectively, from the outside, and the output of the sixth half-bridge (5') is connected to all first poles of the four drive elements (2) for locking and unlocking, respectively, from the inside.

3. The circuit according to claim 1 or 2,

It is characterized in that the preparation method is characterized in that,

The drive element (1, 2) is a direct current motor or an electromagnetic or electromechanical linear drive which is operated using direct current.

4. The circuit according to one of the preceding claims,

It is characterized in that the preparation method is characterized in that,

The second poles of two drive elements (1, 2) arranged in the same vehicle door are connected to each other within the vehicle door.

5. The circuit according to one of the preceding claims,

It is characterized in that the preparation method is characterized in that,

Each half-bridge (4, 5') has two semiconductor switches.

6. A motor vehicle having four side doors, in each of which two drive elements (1, 2) operated with direct current are arranged for selectively locking and unlocking each door separately from the outside and/or from the inside,

It is characterized in that the preparation method is characterized in that,

the motor vehicle having an electric circuit according to one of the preceding claims.

Technical Field

The present invention relates to a circuit for selectively actuating a drive element operating under direct current in a motor vehicle via a half bridge, and also to a motor vehicle as described in the preamble of the independent claim.

Background

Such circuits are known from DE 102010052045 a1 and US2011/0044669a1, and less than two half bridges may be used to manage each drive element.

In modern door lock systems for motor vehicles, each door usually comprises two DC (direct current) motors, one of which locks or unlocks a handle or any other operating element for opening the door from the outside, depending on its driving direction, and the other of which locks or unlocks a handle or any other operating element for opening the door from the inside, depending on its driving direction.

In motor vehicles with four or more doors, it is increasingly desirable to be able to lock and unlock, in particular with opening from the outside and from the inside, in particular four side doors independently of one another. For example, it may be desirable for a particular door to be able to be opened only from the inside, rather than from the outside, or vice versa, and other locking conditions may be required for other doors. For full flexibility in this respect, sixteen half-bridges would in principle be required when using half-bridges to actuate eight drive elements in four vehicle doors, but this number can be reduced by circuit optimization, for example to twelve, but this still represents a considerable expenditure.

Disclosure of Invention

the aim of the invention is to be able to control eight drive elements in a flexible manner as possible for locking and unlocking four doors of a motor vehicle from the outside and/or from the inside by means of as few half-bridges as possible.

The object is achieved by a circuit and a motor vehicle having the features of the independent claims.

advantageous developments of the invention are specified in the dependent claims.

According to the invention, the circuit is designed for selectively actuating eight drive elements for locking and unlocking respectively four doors of the motor vehicle from the outside and/or from the inside.

Here, according to a first aspect of the invention, the circuit comprises nine half-bridges, wherein the outputs of eight of the nine half-bridges are each connected to a first pole of one of the eight driving elements, and the output of the ninth half-bridge is connected to all second poles of the eight driving elements.

According to a second aspect of the invention, the circuit has six half-bridges, wherein the outputs of four of the six half-bridges are each connected to the second pole of each pair of driving elements arranged in the same vehicle door, the output of the fifth half-bridge is connected to all the first poles of the four driving elements for locking and unlocking, respectively, from the outside, and the output of the sixth half-bridge is connected to all the first poles of the four driving elements for locking and unlocking, respectively, from the inside.

The circuit with six half-bridges is also particularly suitable for selectively actuating DC driving elements other than those used for locking and unlocking the doors, respectively, in particular for selectively actuating four pairs of two DC driving elements, which cannot operate simultaneously in opposite directions. In this case the outputs of the four half-bridges must each be connected to the second pole of each pair of driving elements, the output of the fifth half-bridge must be connected to the first pole of one driving element of each pair, and the output of the sixth half-bridge must be connected to the first pole of one driving element of each pair, which cannot operate simultaneously in the opposite direction to the above-mentioned driving elements.

the drive elements may be DC motors, i.e. rotating electrical machines, possibly with a spindle for converting a rotary motion into a linear motion, but they may also be any other electromagnetic or electromechanical linear drive operating with direct current.

In a preferred embodiment, the second poles of two drive elements arranged in the same vehicle door are connected to each other within the vehicle door.

In a preferred embodiment, each half-bridge has two semiconductor switches. Alternatively, each half bridge may be formed by a respective relay.

Drawings

Exemplary embodiments will be described below with reference to the accompanying drawings. In the drawings:

Fig. 1A shows a circuit diagram of an H-bridge circuit comprising two half-bridges;

fig. 1B shows a circuit diagram of a relay which is equivalent to a half bridge comprising two semiconductor switches;

FIG. 2 shows a circuit including sixteen half bridges for actuating eight motors in four side doors of a motor vehicle;

FIG. 3 shows a circuit including twelve half bridges for actuating eight motors in four side doors of a motor vehicle;

FIG. 4 shows a circuit comprising eleven half bridges for actuating eight motors in four side doors of a motor vehicle;

FIG. 5 shows a circuit including nine half bridges for actuating eight motors in four side doors of a motor vehicle; and

Fig. 6 shows a circuit comprising six half-bridges for actuating eight motors in four side doors of a motor vehicle.

Detailed Description

Fig. 1A is a circuit diagram of an H-bridge circuit including two half-bridges, wherein the H-bridge circuit is defined by dashed lines, and wherein one of the half-bridges is defined by a dotted line. The H-bridge circuit has two Outputs (OUT)1 and 2, each forming part of a half-bridge and each providing, depending on their switching state, for example a battery voltage (+ Ubat) or, for example, a ground potential (GND), so that the outputs 1 and 2 can be at the same potential or opposite potentials depending on the actuation of the two half-bridges.

each half-bridge in fig. 1A is typically composed of two semiconductor switches, but each half-bridge may also be formed by a relay, as shown by the dash-dot line in fig. 1B.

Fig. 2 to 4 show different circuits for actuating eight DC motors in four side doors of a motor vehicle via a half bridge. These circuits are used for a better understanding of the invention but do not form part of the subject matter of the invention.

In fig. 2, a motor 1 for locking and unlocking the door from the outside and a motor 2 for locking and unlocking the door from the inside are located in each side door of the motor vehicle. For easier differentiation, motor 1 is drawn as a solid-line ring and motor 2 is drawn as a dashed-line ring.

Each motor 1 and 2 is additionally marked with a sequence of three letters, indicating the position and function of the motor 1 or 2, respectively, in particular the first letter "E" for "external" or "I" for "internal", the second letter "F" for "front" or "R" for "rear", and the third letter "L" for "left" or "R" for "right".

The position assignment is also substantially reflected in the arrangement of the motors 1 and 2 relative to one another and relative to a motor vehicle which is shown only in fig. 2 and is only as contour 3, wherein contour 3 corresponds to a plan view of the motor vehicle from above, the front of which is directed upwards in the figure.

In the non-optimized conventional layout of fig. 2, each of the two poles of each motor 1 and 2 is connected to the output of a dedicated half-bridge 4 and 5, respectively, wherein each half-bridge is shown as a rectangle, and wherein in each case two half-bridges 4 and 5 forming part of the same motor 1, 2 are drawn adjacent to each other and together form an H-bridge circuit.

Each half-bridge 4, 5 is additionally marked with a sequence of four letters, the first letter representing the function of the respective half-bridge, in particular "E" representing "enabled" (release of the door latch, that is to say allowing the opening of the door) or "D" representing "disabled" (blocking of the door latch, that is to say preventing the opening of the door). The following three letters correspond to letters indicating the position and function of the respective motor 1 or 2.

Instead of sixteen half-bridges as shown in fig. 2, it is possible to manage with only twelve half-bridges, as described in US2011/0044669a1, when in each case two motors in the same vehicle door are actuated by three half-bridges.

The final layout as shown in fig. 3, where the two first poles of the motors 1 and 2 are connected to a dedicated half-bridge 4 for releasing the car latch, respectively, and where the two second poles of the motors 1 and 2 are connected to a common half-bridge 5 for blocking the car latch, the common half-bridge being shown between the other two half-bridges 4 in fig. 3. The underlining in the letter designation of the central half-bridge 5, respectively, indicates that the manner in which this half-bridge 5 is actuated simultaneously in accordance with the two other half-bridges can have the effect that the respective vehicle door cannot be opened from the outside or from the inside or both.

The layout of fig. 3 allows for independent motor control using 12 half-bridges. This is possible because it is not necessary to operate the two motors 1 and 2 in opposite directions in one door at the same time.

fig. 4 shows a layout which can be regarded as a further development of the connection principle known from DE 102010052045 a1 for eight motors in four side doors of a motor vehicle.

The layout of fig. 4 allows motor control with only 11 half-bridges, but at the expense of independence of motor operation. Each motor 1, 2 can perform the unlocking operation, but the motor 1 for locking and unlocking from the outside cannot be operated in the opposite direction at the same time, otherwise the motor 2 for locking and unlocking from the inside will also move. This arrangement therefore requires reliable monitoring of the state of the switch unit and the continuous actuation of the motor by software, since the motor 1 and the motor 2 cannot be moved simultaneously.

Fig. 5 shows a circuit with only nine half-bridges 4, 5 for selectively actuating eight motors 1, 2 in a motor vehicle for locking and unlocking the four doors of the motor vehicle from the outside and/or from the inside.

in the layout of fig. 5, each first pole of the eight motors 1 and 2 is connected to the output of a dedicated half-bridge 4 for releasing purposes and all second poles of the motors 1 and 2 are connected to the output of a common ninth half-bridge 5 for blocking purposes. The underlining of the letter designations of the common half-bridge 5 indicates that the half-bridge 5 may have the effect of: according to the other eight half-bridge simultaneously actuated combinations, the required door cannot be opened from the outside or from the inside or both.

the circuit of fig. 5 allows independent operation of eight motors 1, 2 with only nine half-bridges 4, 5, the only limitation being that the direction of movement of all motors 1, 2 is determined by the switching state of the common half-bridge 5, and it is therefore not possible to allow the motors to operate in different directions simultaneously. However, this can be taken into account by a corresponding design of the actuation software. Furthermore, the circuit is not less flexible than, for example, the circuit of fig. 3, but requires significantly fewer half-bridges.

fig. 6 shows a circuit for selectively actuating eight motors 1, 2 in a motor vehicle to lock and unlock, respectively, four doors of the motor vehicle from the outside and/or from the inside, comprising only six half-bridges 4, 5.

In the layout of fig. 6, the second pole of each pair of motors 1 and 2 arranged in the same vehicle door is connected to the output of one of the four half-bridges 4, respectively, for releasing purposes. All first poles of the four motors 1 for locking and unlocking from the outside are connected to the output of the fifth half bridge 5 for blocking purposes and all first poles of the four motors 2 for locking and unlocking from the inside are connected to the output of the sixth half bridge 5' for blocking purposes. The last underline in the letter designations of the half-bridges 5 and 5 'indicates that these half-bridges 5, 5' can act on the left and/or right side door depending on the combination of the simultaneous actuation of the other half-bridges.

the circuit of fig. 6 is also subject to certain limitations at the expense of flexibility and requires a more complex software architecture, but not as flexible as the circuit of fig. 4, for example, but requires significantly fewer half-bridges.

the following table shows a scheme according to which the half-bridges 4, 5 and 5' in fig. 6 can be activated by software in order to achieve different locking states.

Possible combinations of the states of the six half-bridges are listed in the left half of the table. In the left half of the table, a logical "1" indicates that the half-bridge is activated, e.g. if the half-bridge on the other pole of the respective motor is deactivated by being connected to e.g. ground potential (logical "0"), it provides e.g. a battery voltage and moves the respective motor to a locked position. Thus, when the logic state is reversed, the motor moves to the unlocked position.

In the right-hand half of the table, "2" indicates that the associated motor (whose position and function is indicated by the letter combination in fig. 2) moves to the locked position given the combination of six half-bridge states indicated on the left. Thus, "-2" indicates that the associated motor moves to the unlocked position given the combination of states of the six half-bridges indicated on the left. The corresponding motor is stationary at "0".

The circuit of fig. 6 therefore allows, in particular, the front inner and outer handles to be released and blocked individually, if necessary, which allows important functions, such as "unlocking a single door", "locking the region of the opposite door", "locking when traffic is recognized at the rear", etc.

Table form