CN112217705A

CN112217705A - Data transmission circuit, integrated inverter and automobile

Info

Publication number: CN112217705A
Application number: CN202010983241.8A
Authority: CN
Inventors: 高源�; 赵平华
Original assignee: Zhejiang Yikong Power System Co ltd
Current assignee: Zhejiang Yikong Power System Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-01-12

Abstract

The embodiment of the application provides a data transmission circuit, an integrated inverter and an automobile, wherein the data transmission circuit comprises an effective channel and a reserved channel, and the effective channel is connected with an effective pin of a connector; the reserve channel is selectively connectable to a reserve pin of the connector. According to the embodiment of the application, the data transmission channel can be selectively added according to the requirement, and the additional independent development is not needed, so that the development cost is saved.

Description

Data transmission circuit, integrated inverter and automobile

Technical Field

The application relates to the technical field of automobiles, in particular to a data transmission circuit, an integrated inverter and an automobile.

Background

With the increasingly prominent environmental problems, new energy automobiles become the future development trend of automobile production lines. An inverter, a Vehicle Control Unit (VCU), and a Battery Management System (BMS) are core components of a new energy automobile power System. In the structural design of each part in the new energy automobile, the inverter comprises a control circuit part and a power driving part to drive a motor, the whole automobile controller comprises a control circuit part to control the whole automobile parts, and the battery management system comprises a control circuit structure.

With the development of electronic computing level, the cost reduction of new energy automobiles becomes an important direction for promoting the continued development of new energy automobiles. The integrated design among each spare part of new energy automobile can obtain certain improvement in aspects such as the volume occupies and circuit layout to reduce new energy automobile cost. Such as the integrated design of an inverter and a vehicle control unit, and the integrated design of the vehicle control unit and a battery management system.

However, in some integrated circuit designs, the data transmission path is designed according to the requirement to transmit the required data to meet the design requirement.

Disclosure of Invention

The embodiment of the application provides a data transmission circuit, an integrated inverter and an automobile, which can selectively increase a data transmission channel according to requirements so as to realize the function of additional requirements.

An embodiment of the present application provides a data transmission circuit, including:

the effective channel is connected with an effective pin of a connector; and

and the reserved channel is selectively connected with the reserved pin of the connector.

In an embodiment of the data transmission circuit, the number of the effective channels is multiple, the effective channels are connected with an effective pin of a connector, the number of the reserved channels is multiple, and at least two of the reserved channels are selectively connected with a reserved pin of the connector.

In an embodiment of the data transmission circuit, the data transmission circuit has a preset area, the preset area is used for arranging one or more switching circuits, one switching circuit is used for connecting the at least two reserved channels and one reserved pin of the connector, and the switching circuit is used for connecting one of the at least two reserved channels and one reserved pin of the connector.

In an embodiment of the data transmission circuit of the present application, the switching circuit includes at least one of a first switching circuit, a second switching circuit, a third switching circuit, a fourth switching circuit, a fifth switching circuit, and a sixth switching circuit;

the first switching circuit is used for transmitting a digital signal of one reserved channel to one reserved pin, the second switching circuit is used for transmitting a digital signal of one reserved pin to one reserved channel, the third switching circuit is used for transmitting an analog signal of one reserved pin to one reserved channel, the fourth switching circuit is used for transmitting a control signal of one reserved channel to one reserved pin, the fifth switching circuit is used for transmitting a high-side driving signal of one reserved channel to one reserved pin, and the sixth switching circuit is used for transmitting a low-side driving signal of one reserved channel to one reserved pin.

In an embodiment of the data transmission circuit, the first switching circuit includes a first resistor and a first capacitor, one end of the first resistor is connected to one of the reserved pins, the other end of the first resistor is connected to one of the reserved channels, and the first capacitor is connected between the reserved pin and the first resistor.

In an embodiment of the data transmission circuit, the second switching circuit includes a second resistor and a second capacitor, one end of the second resistor is connected to one of the reserved pins, the other end of the second resistor is connected to one of the reserved channels, and the second capacitor is connected between one of the reserved channels and the second resistor.

In an embodiment of the data transmission circuit of the present application, the third switching circuit includes a third resistor, a fourth resistor, and a third capacitor, one end of the third resistor is connected to one of the reserved pins, the other end of the third resistor is connected to one of the reserved channels, one end of the fourth resistor is connected between the third resistor and the reserved channel, the other end of the fourth resistor is grounded, one end of the third capacitor is connected between the third resistor and the reserved channel, and the other end of the third capacitor is grounded.

In an embodiment of the data transmission circuit, the fourth switching circuit includes a fifth resistor and a fourth capacitor, one end of the fifth resistor is connected to one of the reserved pins, the other end of the fifth resistor is connected to one of the reserved channels, one end of the fourth capacitor is connected between the fifth resistor and the reserved pins, and the other end of the fourth capacitor is grounded.

In an embodiment of the data transmission circuit of the present application, the fifth switching circuit includes a sixth resistor, a seventh resistor, an eighth resistor, and a ninth resistor, the sixth resistor, the seventh resistor, the eighth resistor, and the ninth resistor are connected in series, the sixth resistor is further connected to a power source end, the ninth resistor is further connected to ground, one of the reserved pins is connected between the seventh resistor and the eighth resistor, one end of a power driving chip is connected between the sixth resistor and the seventh resistor, and the other end of the power driving chip is connected to one of the reserved channels.

In an embodiment of the data transmission circuit of the present application, the sixth switching circuit includes a sixth resistor, a seventh resistor, an eighth resistor, and a ninth resistor, the sixth resistor, the seventh resistor, the eighth resistor, and the ninth resistor are connected in series, the sixth resistor is further connected to a power source end, the ninth resistor is further connected to ground, one of the reserved pins is connected between the seventh resistor and the eighth resistor, one end of a power driving chip is connected between the eighth resistor and the ninth resistor, and the other end of the power driving chip is connected to one of the reserved channels.

In an embodiment of the data transmission circuit of the present application, the reserved areas include a first reserved area, a second reserved area, a third reserved area, and a fourth reserved area, the first reserved area is used for arranging the first switching circuit or the second switching circuit, the second reserved area is used for arranging the third switching circuit, the third reserved area is used for arranging the fourth switching circuit, and the fourth reserved area is used for arranging the fifth switching circuit or the sixth switching circuit.

In an embodiment of the data transmission circuit of the present application, the data transmission circuit further includes one or more switches, one of the switches is configured to connect the at least two reserved channels to one reserved pin of the connector, and the switch is configured to connect one of the at least two reserved channels to one reserved pin of the connector.

In an embodiment of the data transmission circuit, the one or more switches are connected to all reserved channels.

In an embodiment of the data transmission circuit, the connector includes one, two, or three reserved pins, and one of the reserved pins is used for transmitting at least one of a digital signal, an analog signal, a high-side signal, a low-side signal, and a control signal.

The embodiment of the application provides an integrated form inverter, include as above data transmission circuit, integrated form inverter is used for driving whole car motor and control whole car system.

In an embodiment of the present application, the integrated inverter is used for driving a front drive motor or a rear drive motor of an automobile.

The embodiment of the application provides an automobile which comprises the integrated inverter.

In an embodiment of the present application, the vehicle further includes an inverter, the inverter is used for driving a front-drive motor or a rear-drive motor of the vehicle, and one of the inverter and the integrated inverter is used for driving the front-drive motor and the other is used for driving the rear-drive motor of the vehicle.

The embodiment of the present application further provides an automobile, including:

the first integrated inverter comprises an operation module and a first control module which are connected with each other, the operation module is used for calculating an obtained signal to obtain a calculation result, and the first control module is used for controlling a first preset device in the whole vehicle system according to the calculation result; and

the second integrated inverter comprises a second control module, the second control module is connected with the operation module, and the second control module is used for controlling a second preset device in the whole vehicle system according to the calculation result;

wherein the first pre-set device is different from the second pre-set device.

In an embodiment of the present application, the first preset device is located in a first preset area of the automobile, and the second preset device is located in a second preset area of the automobile.

In an embodiment of the present application, the first integrated inverter is further configured to drive a front drive motor of the vehicle, and the first control module is configured to control devices at a front portion of the vehicle;

the second integrated inverter is also used for driving a rear drive motor of the automobile, and the second control module is used for controlling devices at the rear part of the automobile.

In an embodiment of the present application, the first integrated inverter is further configured to drive a rear-drive motor of the vehicle, and the first control module is configured to control devices at the rear of the vehicle;

the second integrated inverter is also used for driving a front drive motor of the automobile, and the second control module is used for controlling devices at the front part of the automobile.

In an embodiment of the present application, a distance between the first integrated inverter and the first preset device is less than a first preset distance, and a distance between the second integrated inverter and the second preset device is less than a second preset distance.

In an embodiment of the present application, at least one of the first control module and the second control module includes the data transmission circuit as described above.

The effective channel and the effective pin in the data transmission circuit can be connected for data transmission, so that the basic requirement of the data transmission circuit for data transmission is met. And the reserved channel in the data transmission circuit of the embodiment of the application can be selectively connected with the reserved pin, and the data transmission circuit can selectively communicate the reserved channel with the reserved pin under the condition that the extra function is required, so that the data transmission circuit can perform other data transmission through the reserved channel and the reserved pin, and the extra function requirement is met. Therefore, according to the embodiment of the application, the data transmission channel can be selectively added according to the requirement, and the additional independent development is not needed, so that the development cost is saved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, wherein like reference numerals represent like parts in the following description.

Fig. 1 is a schematic diagram of a first structure of a data transmission circuit according to an embodiment of the present disclosure.

Fig. 2 is a schematic diagram of a second structure of a data transmission circuit according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a third structure of a data transmission circuit according to an embodiment of the present application.

Fig. 4 is a schematic diagram of a fourth structure of a data transmission circuit according to an embodiment of the present application.

Fig. 5 is a schematic diagram of a fifth structure of a data transmission circuit according to an embodiment of the present application.

Fig. 6 is a schematic diagram of a sixth structure of a data transmission circuit according to an embodiment of the present application.

Fig. 7 is a schematic diagram of a seventh structure of a data transmission circuit according to an embodiment of the present application.

Fig. 8 is an eighth structural schematic diagram of a data transmission circuit according to an embodiment of the present application.

Fig. 9 is a first structural diagram of a switching circuit in a data transmission circuit according to an embodiment of the present disclosure.

Fig. 10 is a schematic diagram of a second structure of a switching circuit in a data transmission circuit according to an embodiment of the present application.

Fig. 11 is a schematic diagram of a third structure of a switching circuit in a data transmission circuit according to an embodiment of the present application.

Fig. 12 is a schematic diagram of a fourth structure of a switching circuit in a data transmission circuit according to an embodiment of the present application.

Fig. 13 is a fifth structural diagram of a switching circuit in a data transmission circuit according to an embodiment of the present application.

Fig. 14 is a schematic diagram of a sixth structure of a switching circuit in a data transmission circuit according to an embodiment of the present application.

Fig. 15 is a schematic diagram illustrating an arrangement relationship between a reserved area and reserved pins, a reserved channel and a power driver chip in a data transmission circuit according to an embodiment of the present application.

Fig. 16 is a schematic structural diagram of a control device to which a data transmission circuit according to an embodiment of the present application is applied.

Fig. 17 is a schematic structural diagram of a first integrated inverter according to an embodiment of the present application.

Fig. 18 is a schematic diagram of a second structure of an integrated inverter according to an embodiment of the present application.

Fig. 19 is a third structural schematic diagram of an integrated inverter according to an embodiment of the present application.

Fig. 20 is a first structural schematic diagram of an automobile according to an embodiment of the present application.

Fig. 21 is a schematic view of a second structure of an automobile according to an embodiment of the present application.

Fig. 22 is a third schematic structural diagram of an automobile according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application.

Referring to fig. 1, fig. 1 is a first structural schematic diagram of a data transmission circuit according to an embodiment of the present disclosure, where the data transmission circuit 200 can implement data transmission. The data transmission circuit 200 may be applied to a device having a data transmission function, such as an integrated inverter. The integrated inverter may be applied to electrical equipment, such as some electrical equipment for traffic, may be an automobile, and the like. The automobile can be a new energy automobile such as an electric automobile, a hybrid electric automobile and the like.

With continued reference to FIG. 1, the data transmission circuit 200 may include an active channel 220, the active channel 220 being connected to an active pin 202 of a connector. The data transmission circuit 200 can realize data transmission through the connection relationship between the effective channel 220 and the effective pin 202. When the data transmission circuit 200 is applied to some devices, such as an integrated inverter, the basic requirement of the integrated inverter for data transmission can be satisfied.

Such as the integrated inverter can realize functions of accelerator pedal signal sampling calculation, brake pedal signal sampling calculation, battery pack thermal risk signal monitoring, transmission temperature monitoring, constant-speed cruise enabling, cooling fan driving, cooling water pump driving and the like. The data transmission circuit 200 may implement transmission of an accelerator pedal signal, transmission of a brake pedal signal, transmission of a battery pack thermal risk signal, transmission of a transmission temperature signal, transmission of a cruise enable signal, transmission of a cooling fan driving signal, transmission of a cooling water pump driving signal, and the like.

The number of active channels 220 in the data transmission circuit 200 may be one or more. It should be noted that "a plurality of components" may be understood as at least two components, such as two, three, etc. It is understood that in some cases, the effective channel 220 is plural. In some cases where there is less data transfer requirement, such as where only one type of data transfer is required, then there may be one active channel 220.

Referring to fig. 2, fig. 2 is a schematic diagram of a second structure of a data transmission circuit according to an embodiment of the present disclosure. The number of the effective channels 220 is plural, and the plural effective channels 220 may be two, such as the effective channel 220A and the effective channel 220B shown in fig. 2. The number of active channels 220 may be more, such as three, four, five, six, etc., such as the active channels 220 shown in fig. 2 with an omission that may be zero, one, or multiple active channels 220. It is understood that the number of the effective channels 220 can be set according to the requirement of the data transmission circuit 200 for transmitting data.

The effective channel 220 can be understood as a circuit structure in which two components realize data transmission. At least a portion of active channel 220 may be an active pin of a device, such as a chip, which may also be referred to as an active pin. Accordingly, there is a wiring arrangement corresponding to the active pins within the chip. It will be appreciated that some of the wires may also be connected to active pin connections of a device such as a chip, such as solder connections, external to the chip. It should be noted that the active pins 220 may also be a circuit structure disposed on the circuit board.

In some embodiments, multiple active channels 220 may connect the same active pin 202. Such as active channel 220A and active channel 220B shown in fig. 2, communicate to the same active pin 202. It is understood that it is also possible that more active channels 220 are connected to the same active pin 202. In other embodiments, the number of the active pins 202 may be multiple, such as two, and at least one active pin 202 may be connected to multiple active channels 220. The active pins 202 of the socket connector may be understood as active pin pins on the socket connector.

The active channel 220 may be directly connected to the active pin 202, and the active channel 220 may be connected to the active pin 202 through some circuit. Such as selection switches, filtering circuits, power driving circuits, etc.

With continued reference to fig. 1 and 2, the data transmission circuit 200 may further include a reserved channel 210, and the reserved channel 210 may be selectively connected to the reserved pin 201 of the connector. Such as between the reserved pin 201 and the reserved channel 210, an optional circuit 230 is configured, through which optional circuit 230 the reserved pin 201 and the reserved channel 210 can be selectively connected. I.e., in the case where additional functionality is required to transfer data, the reserved pins 201 and the reserved channels 210 may be connected by optional circuitry 230 to enable the data transfer required for the additional functionality.

Optional circuitry 230 may be configured to be empty and reserve pin 201 and reserve channel 210 may be disconnected without requiring additional functionality. The optional circuit 230 is configured to be empty, which is understood to be an area reserved on a plate where no connected circuit is arranged. Therefore, in the case that the data transmission circuit 220 in the embodiment of the present application requires an additional function, the reserved channel 210 and the reserved pin 201 can be selectively communicated, so that the data transmission circuit 200 performs data transmission required by the additional function through the reserved channel 210 and the reserved pin 201, and the requirement of the additional function is met. Therefore, according to the embodiment of the application, a data transmission channel can be selectively added according to the requirement, and the additional independent development is not needed, so that the development cost and the verification cost are reduced. Further, for different development platforms, additional functional requirements can be realized through the relationship among the reserved channel 210, the reserved pin 201, and the optional circuit 230, so as to meet different platforms.

Example 1: the data transmission 200 can be applied to an integrated inverter, and can drive a motor in an automobile and control a whole automobile system in the automobile. For example, when the automobile requires to collect a battery pack heat risk signal for alarming, the automobile may require to drive a water pump and a fan to work after collecting the battery pack heat risk signal abnormally along with the progress of a project, and simultaneously requires to output and wake up other controllers to inhibit the battery pack heat risk. Thus, the reserved channel 210 and the reserved pin 201 can be selectively connected to realize the required data transmission.

Example 2: the data transmission 200 can be applied to an integrated inverter, and can drive a motor in an automobile and control a whole automobile system in the automobile. Such as the need for an automobile to pick up cooling water temperature to drive a cooling water pump, and in some high power applications, the need for an increased pick-up oil pump temperature and a drive for a cooling oil pump may be required. Thus, the reserved channel 210 and the reserved pin 201 can be selectively connected to realize the required data transmission.

Example 3: the data transmission 200 can be applied to an integrated inverter, and can drive a motor in an automobile and control a whole automobile system in the automobile. In the future, redundant signals with the same function can be added based on the function safety design. Thus, the reserved channel 210 and the reserved pin 201 can be selectively connected to realize the required data transmission.

It is understood that the above examples are merely for illustrating that the reserved channel 210 and the reserved pin 201 in the embodiment of the present application are selectively connected, and different functions may be implemented according to requirements. It does not constitute a limitation on the optional connection of the reserved channel 210 and the reserved pin 201 for additional functions.

The number of reserved channels 210 in the data transmission circuit 200 may be one or more. It is understood that in some cases, the reserved channel 210 is plural. In some cases where there is less additional functional requirement, such as only one additional functional requirement, the reserved channel 210 may be one.

Referring to fig. 3, fig. 3 is a schematic diagram of a third structure of a data transmission circuit according to an embodiment of the present disclosure. The reservation channel 210 is plural, and the plurality of reservation channels 210 may be two, such as the reservation channel 210A and the reservation channel 210B shown in fig. 3. The number of reservation channels 210 may be more, such as three, four, five, six, etc., such as the reservation channels 210 shown in fig. 3 having an omission that may be zero, one, or multiple reservation channels 210. It is understood that the number of the reserved channels 210 can be set according to the requirement of additional functions. Or the number of the reserved channels 210 may be set according to the requirement of additional functions of various platforms.

The reserve channel 210 may be understood as a circuit configuration in which two components are capable of data transmission. At least a portion of the reserved channel 210 may be a reserved pin of a device, such as a chip, which may also be referred to as a reserved pin. Correspondingly, the chip is internally provided with a circuit arrangement corresponding to the reserved pin. It will be appreciated that some of the wires may also be connected outside the device, such as a chip, to reserved pin connections of the chip, such as soldering.

In some embodiments, multiple reservation channels 210 are selectably connected to the same reservation pin 201 by selectable circuitry 230. A reservation channel 210A and a reservation channel 210B such as shown in fig. 3 are selectably connected to the same reservation pin 201 by an optional circuit 230. It will be appreciated that more reservation channels 210 are also selectably connected to the same reservation pin 201 by the selectable circuit 230. The reserved pin 201 of the connector can be understood as a reserved pin on the connector.

Referring to fig. 4, fig. 4 is a schematic diagram illustrating a fourth structure of a data transmission circuit according to an embodiment of the present disclosure. The number of the reserved pins 201 in the data transmission circuit 200 may be multiple, and a reserved pin 201 is selectively connected to a reserved channel 210 through an optional circuit 230. Such as two reserved pins 201, namely reserved pin 201A and reserved pin 201B, the reserved pin 201A is selectively connected to the reserved channel 210A through an optional circuit 230A, and the reserved pin 201B is selectively connected to the reserved channel 210B through an optional circuit 230B.

Referring to fig. 5, fig. 5 is a schematic diagram illustrating a fifth structure of a data transmission circuit according to an embodiment of the present disclosure. The number of the reserved pins 201 and the number of the reserved channels 210 in the data transmission circuit 200 are multiple, one reserved channel 210 is selectively connected with one reserved pin 201 through an optional circuit 230, and at least two reserved channels 210 are selectively connected with one reserved pin 201 through an optional circuit 230. Such as two reserved pins 201, namely a reserved pin 201A and a reserved pin 201B; the number of the reserved channels 210 is three, and the three reserved channels are a reserved channel 210A, a reserved channel 210B, and a reserved channel 210C. The reserved channel 210A is selectively connectable to the reserved pin 201A via an optional circuit 230A, and the reserved channel 210B and the reserved channel 210C are selectively connectable to the reserved pin 201B via an optional circuit 230B.

Referring to fig. 6, fig. 6 is a schematic diagram illustrating a sixth structure of a data transmission circuit according to an embodiment of the present disclosure. The number of the reserved pins 201 and the number of the reserved channels 210 in the data transmission circuit 200 are multiple, and each reserved pin 201 is selectively connected with at least two reserved channels 210 through an optional circuit 230. Such as two reserved pins 201, namely a reserved pin 201A and a reserved pin 201B; the number of the reserved channels 210 is four, and the four reserved channels are a reserved channel 210A, a reserved channel 210B, a reserved channel 210C and a reserved channel 210D. The reserved channel 210A and the reserved channel 210B are selectively connected to the reserved pin 201A through an optional circuit 230A, and the reserved channel 210C and the reserved channel 210D are selectively connected to the reserved pin 201B through an optional circuit 230B.

Referring to fig. 7, fig. 7 is a schematic diagram illustrating a seventh structure of a data transmission circuit according to an embodiment of the present disclosure. An optional circuit in the data transmission circuit 200 may be a switch 230. The switch 230 may be a single-pole multi-throw switch, a plurality of reserve channels 210 such as reserve channel 210A and reserve channel 210B are connected to two terminals of one end of the switch 230, and one terminal of the other end of the switch 230 is connected to a reserve pin 201. When the reserved channel 210A is required to transmit data, the switch 230 may connect the reserved pin 201 and the reserved channel 210A, and disconnect the reserved pin 201 from the reserved channel 210B. When the reserved channel 210B is required to transmit data, the switch 230 may connect the reserved pin 201 and the reserved channel 210B, and disconnect the reserved pin 201 from the reserved channel 210A. When the reserved channel 210A and the reserved channel 210B are not required to transmit data, the switch 230 may disconnect the reserved pin 210 from the reserved channel 210A and the reserved channel 210B.

It should be noted that one switch 230 may also be connected to one reserved channel 210.

It is understood that the switch 230 may be directly connected to the reserved pin 201, or may be connected to the reserved pin 201 through some circuit. The switch 230 may be directly connected to the reservation channel 210, or may be connected to the reservation channel 210 through some circuits. The connection relationship between the switch 230 and the reserved pin 201 and the reserved channel 210 can be set according to actual needs.

Referring to fig. 8, fig. 8 is a schematic diagram illustrating an eighth structure of a data transmission circuit according to an embodiment of the present disclosure. An optional circuit in the data transmission circuit 200 may be the switching circuit 230. The switching circuit 230 may include a resistor and/or a capacitor, among other structures.

In an actual production process, the board material may be wired to constitute a circuit board, and the circuit board may have the data transmission circuit 200 thereon. During the wiring process, the reserved area 240 may be reserved on the board without arranging wires, or some connection points, such as pads, for connecting with circuit structures provided on the reserved area 240 may be arranged. When additional functions are required, the switching circuit 230 may be arranged again in the reserved area 240. The switching circuit 230 designed into the reserved area 240 can connect the reserved pin 201 and the reserved channel 210A, so as to implement data transmission, thereby implementing the required functions. One end of the switching circuit 230 is connected to a reserved pin 201, and the other end of the switching circuit 230 is connected to a reserved channel 210.

In some embodiments of the present application, the switching circuit 230 may be connected to any one of the plurality of reservation channels 210. It will be appreciated that different reserved channels 210 may be connected to different switching circuits 230. Such as one end of switching circuit 230, may be connected to one of reservation channel 210A and reservation channel 210B, which may connect reservation channel 210A without connection to reservation channel 210B, or may connect reservation channel 210B without connection to reservation channel 210A. The switching circuits 230 may be connected to the corresponding reserved channels 210 according to actual requirements in production.

In some embodiments, there may be one or more switching circuits 230. Such as switching circuit 230, includes at least one of a first switching circuit, a second switching circuit, a third switching circuit, a fourth switching circuit, a fifth switching circuit, and a sixth switching circuit. A switch circuit 230 may select one connection from the reserved channels 210, or a switch circuit 230 may be connected to only one reserved channel 210. That is, the number of the switching circuits 230 may be the same as the number of the reserved channels 210, or may be smaller than the number of the reserved channels 210.

The first switching circuit is used for transmitting a digital signal of one reserved channel 210 to one reserved pin 201, the second switching circuit is used for transmitting a digital signal of one reserved pin 201 to one reserved channel 210, the third switching circuit is used for transmitting an analog signal of one reserved pin 201 to one reserved channel 210, the fourth switching circuit is used for transmitting a control signal of one reserved channel 210 to one reserved pin 201, the fifth switching circuit is used for transmitting a high-side driving signal of one reserved channel 210 to one reserved pin 201, and the sixth switching circuit is used for transmitting a low-side driving signal of one reserved channel 210 to one reserved pin 201.

Referring to fig. 9, fig. 9 is a schematic diagram illustrating a first structure of a switching circuit in a data transmission circuit according to an embodiment of the present disclosure. The switching circuit 230 may include a first switching circuit 231, the first switching circuit 231 may include a first resistor R1 and a first capacitor C1, one end of the first resistor R1 is connected to the reserved pin 201, the other end of the first resistor R1 is connected to the reserved channel 210, and the first capacitor C1 is connected between the reserved pin 201 and the first resistor R1. Not only one reserved pin 201 and one reserved channel 210 can be connected through the first resistor R1 and the first capacitor C1 to transmit a digital signal of one reserved channel 210 to one reserved pin 201, but also filtering can be performed.

Referring to fig. 10, fig. 10 is a schematic diagram illustrating a second structure of a switching circuit in a data transmission circuit according to an embodiment of the present disclosure. The switching circuit 230 may include a second switching circuit 232, the second switching circuit 232 may include a second resistor R2 and a second capacitor C2, one end of the second resistor R2 is connected to one reserved pin 201, the other end of the second resistor R1 is connected to one reserved channel 210, and the second capacitor C1 is connected between one reserved channel 210 and the second resistor R1. Not only one reserved pin 201 and one reserved channel 210 can be connected through the second resistor R2 and the second capacitor C2 to transmit the digital signal of one reserved pin 201 to one reserved channel 210, but also filtering can be performed.

Referring to fig. 11, fig. 11 is a schematic diagram illustrating a third structure of a switching circuit in a data transmission circuit according to an embodiment of the present disclosure. The switching circuit 230 may include a third switching circuit 233, the third switching circuit 233 may include a third resistor R3, a fourth resistor R4, and a third capacitor C3, one end of the third resistor R3 is connected to one reserved pin 201, the other end of the third resistor R4 is connected to one reserved channel 210, one end of the fourth resistor R4 is connected between the third resistor R3 and the reserved channel 210, the other end of the fourth resistor R4 is grounded, one end of the third capacitor C1 is connected between the third resistor R3 and the reserved channel 210, and the other end of the third capacitor C3 is grounded. Not only one reserved pin 201 and one reserved channel 210 can be connected to transmit an analog signal of one reserved pin 201 to one reserved channel 210 through the third resistor R3, the fourth resistor R4, and the third capacitor C3, but also filtering can be performed.

Referring to fig. 12, fig. 12 is a schematic diagram illustrating a fourth structure of a switching circuit in a data transmission circuit according to an embodiment of the present disclosure. The switching circuit 230 may include a fourth switching circuit 234, the fourth switching circuit 234 may include a fifth resistor R5 and a fourth capacitor C4, one end of the fifth resistor R5 is connected to one reserved pin 201, the other end of the fifth resistor R5 is connected to one reserved channel 210, one end of the fourth capacitor C4 is connected between the fifth resistor R5 and the reserved pin 201, and the other end of the fourth capacitor C4 is grounded. Not only one reserved pin 201 and one reserved channel 210 can be connected through the fifth resistor R5 and the fourth capacitor C4 to transmit a control signal of one reserved channel 210 to one reserved pin 201, but also filtering can be performed.

Referring to fig. 13, fig. 13 is a schematic diagram illustrating a fifth structure of a switching circuit in a data transmission circuit according to an embodiment of the present disclosure. The switching circuit 230 may include a fifth switching circuit 235, the fifth switching circuit 235 may include a sixth resistor R6 and a seventh resistor R7, the sixth resistor R6 and the seventh resistor R7 are connected in series, the sixth resistor R6 is further connected to a power supply terminal Vx, a reserved pin 201 is connected to the seventh resistor R7, one end of a power driving chip 250 is connected between the sixth resistor R6 and the seventh resistor R7, and the other end of the power driving chip 250 is connected to a reserved channel 210. The high side driving signal of one reserved channel 210 can be transmitted to one reserved pin 201 through the sixth resistor R6, the seventh resistor R7 and the power driving chip 250.

Referring to fig. 14, fig. 14 is a schematic diagram illustrating a sixth structure of a switching circuit in a data transmission circuit according to an embodiment of the present disclosure. The switching circuit 230 may include a sixth switching circuit 236, the sixth switching circuit 236 may include an eighth resistor R8 and a ninth resistor R9, the eighth resistor R8 and the ninth resistor R9 are connected in series, the ninth resistor R9 is further grounded, a reserved pin 201 is connected to the eighth resistor R8, one end of a power driving chip 250 is connected between the eighth resistor R8 and the ninth resistor R9, and the other end of the power driving chip 250 is connected to a reserved channel 210. The low side driving signal of one reserved channel 210 can be transmitted to one reserved pin 201 through the eighth resistor R8, the ninth resistor R9 and the power driving chip 250.

In some embodiments of the present application, one or more than one sub-regions may be designed in the reserved region 240, such as a sub-region designed in the reserved region 240, and the sub-region may be disposed with any of the above switching circuits. It should be noted that, the demand for additional functions is increasing, and the reserved area 240 is often designed as a sub-area which is not enough to meet the demand. In the embodiment of the present application, a plurality of sub-regions may be designed in the reserved region 240, and one switching circuit 230 may be arranged in one sub-region. Therefore, according to the embodiment of the present application, corresponding switching circuits may be arranged in the sub-areas of the reserved area 240 according to different requirements.

In the embodiment of the present application, some reserved areas 240 may be arranged with corresponding switching circuits, and some reserved areas 240 may be arranged with one of a plurality of switching circuits, such as two switching circuits.

Referring to fig. 15, fig. 15 is a schematic diagram illustrating an arrangement relationship between a reserved area and reserved pins, a reserved channel and a power driving chip in a data transmission circuit according to an embodiment of the present application. The reserved area 240 may have four, a first reserved area 241, a second reserved area 242, a third reserved area 243 and a fourth reserved area 244. The four reserved areas 240 can be distributed with six kinds of switching circuits 230, the circuits distributed in the four reserved areas 240 can be connected to the reserved pins 201 of the same connector, and the circuits distributed in the four reserved areas 240 can be connected to different reserved channels 210.

The first reserved area 241 may arrange a first switching circuit 231, such as a first resistor R1 and a first capacitor C1. The first reserved area 241 may also arrange a second switching circuit 232, such as a second resistor R2 and a second capacitor C2. The first resistor R1 and the second resistor R2 of the present embodiment may be of the same type. The first resistor R1 and the second resistor R2 are designed to be the same type, and can be arranged at the same position of the first reserved area 241, so that the space occupation can be reduced compared with the case that the two resistors respectively occupy one position.

When the first reserved area 241 arranges circuits, such as the first resistor R1 and the first capacitor C1, may be connected to the reserved channel 210A, which reserved channel 210A is a digital signal output channel. That is, the digital signal of the reserved channel 210A can be transmitted to the reserved pin 201 through the first resistor R1 and the first capacitor C1. The first reserved area 241, when disposed with the first resistor R1 and the second capacitor C2, may be connected to the reserved channel 210A, which reserved channel 210A is a digital signal input channel. That is, the digital signal of the reserved pin 201 can be transmitted to the reserved channel 210A through the first resistor R1 and the second capacitor C2. It is understood that the reserved channel 210A can be an I/O pin of a main chip, which can implement input or sampling of digital signals, and can also implement output of digital signals. In some embodiments, the main chip has a digital signal input module, or a digital signal sampling module, and a digital signal output module inside, and the digital signal sampling module can collect a digital signal for the calculation module of the main chip to perform calculation. The digital signal output module is used for transmitting digital signals to the outside of the main chip.

The second reserved area 242 may arrange the third switching circuit 233 such as the third resistor R3, the fourth resistor R4, and the third capacitor C3. When the second reserved area 242 is arranged with a circuit, such as the third resistor R3, the fourth resistor R4, and the third capacitor C3, may be connected to the reserved channel 210B, which reserved channel 210B is an analog signal input channel. That is, the analog signal of the reserved pin 201 may be transmitted to the reserved channel 210B through the third resistor R3, the fourth resistor R4, and the third capacitor C3. It is understood that the reserved channel 210B can be used as an ADC pin of a main chip, which can input or sample analog signals. In some embodiments, the main chip has an analog signal input module, or an analog signal sampling module inside, and the analog signal sampling module can collect an analog signal for the calculation module of the main chip to perform calculation.

The third reserved area 243 may arrange a fourth switching circuit 234, such as a fifth resistor R5 and a fourth capacitor C4. The third reserved area 243 may be connected to a reserved channel 210C, such as a fifth resistor R5 and a fourth capacitor C4, when the circuit is arranged, the reserved channel 210C being a control signal output channel. That is, the control signal of the reserve channel 210C may be transmitted to the reserve pin 201 through the fifth resistor R5 and the fourth capacitor C4. It is understood that the reserved channel 210C can be used as a control pin of a main chip. In some embodiments, the master chip has a communication control module inside it, such as a LIN communication control module, which may issue control signals for transmission outside the chip through control pins of the master chip. It is understood that a LIN communication control circuit, which may be connected between the control pin and the optional circuit, may be arranged outside the master chip in cooperation with the LIN communication control module.

The fourth reserved area 244 may arrange a fifth switching circuit 235, such as a sixth resistor R6 and a seventh resistor R7. The fourth reserved area 244 may also arrange a sixth switching circuit 246, such as an eighth resistor R8 and a ninth resistor R9.

When it is required to transmit a high-side driving signal, a sixth resistor R6 and a seventh resistor R7 may be disposed in the fourth reserved area 244, the power driving chip 250 is directly connected between the sixth resistor R6 and the seventh resistor R7, and the sixth resistor R6 is connected to the power terminal Vx. When it is necessary to transmit a low-side driving signal, an eighth resistor R8 and a ninth resistor R9 may be disposed in the fourth reserved area 244, the power driving chip 250 is directly connected between the eighth resistor R8 and the ninth resistor R9, and the ninth resistor R9 is grounded.

It is understood that the fourth reserved area 244 may be arranged with the power terminal Vx and the ground terminal in advance, or the fourth reserved area 244 may be arranged with the power terminal Vx and the ground terminal in advance.

In an actual production process, a reserved area 240 such as a fourth reserved area 244 may be reserved, and the fourth reserved area 244 may be provided with two resistors such as a sixth resistor R6 and a seventh resistor R7, or an eighth resistor R8 and a ninth resistor R9, wherein the two resistors are connected with the power driving chip 250 to realize transmission of different signals so as to realize a desired function.

The power driver chip 250 is connected to the reserved channel 210D, and the reserved channel 210D is a high-side driver output channel or a low-side driver output channel. That is, the reserved channel 210D transmits the high-side driving signal of the reserved channel 210D to the reserved pin 201 through the power driving chip 250, the sixth resistor R6 and the seventh resistor R7, or the reserved channel 210D transmits the low-side driving signal of the reserved channel 210D to the reserved pin 201 through the power driving chip 250, the eighth resistor R8 and the ninth resistor R9.

It is understood that power driver chip 250 may also be connected to active channel 220, and that power driver chip 250 may also be connected to active pin 202. When the data transmission circuit 200 is applied to an automobile, the power driving chip 250 can drive a water pump, a fan, a lamp and the like in the automobile.

It is understood that the reserved channel 210D can be used as a driving pin of a main chip. In some embodiments, the digital signal sampling module, the digital signal output module and the digital signal output module inside the main chip are connected with a high-side driving circuit outside the main chip, so that transmission of a high-side driving signal can be realized. And the digital signal sampling module, the digital signal output module and the digital signal output module in the main chip are connected with the low-side drive circuit outside the main chip, so that the transmission of the low-side drive signal can be realized. The high side driving circuit or the low side driving circuit is arranged between the driving pin and the optional circuit.

In each of the above embodiments, the number of the effective channels 220 may be one or more.

In the above embodiments, one reserved pin 201 may have one or more functions. Such as one reserved pin 201, has at least one of transmitting a digital signal, an analog signal, a high side drive signal, a low side drive signal, and a control signal. It will be appreciated that transmitting a digital signal may include a digital signal input and a digital signal output.

When there are a plurality of reserved pins 201, each of the plurality of reserved pins 201 may be designed to have one function, or a part of the reserved pins 201 may be designed to have a plurality of functions and another part of the reserved pins 201 may be designed to have one function, or a part of the reserved pins 201 may be designed to have a plurality of functions and another part may be designed to have a plurality of functions. And when one part of the reserved pins 201 in the plurality of reserved pins 201 is designed to have multiple functions and the other part is designed to have multiple functions, all the reserved pins 201 can realize all the functions of transmitting digital signals, analog signals, high-side driving signals, low-side driving signals and control signals. For example, all the reserved pins 201 have functions of transmitting digital signals, analog signals, high-side driving signals, low-side driving signals and control signals. For another example, a part of the reserved pins 201 has a function of transmitting digital signals, analog signals and control signals, and a part of the reserved pins 201 has a function of transmitting high-side driving signals and low-side driving signals.

The effective channel 220 and the effective pin 202 in the data transmission circuit of the embodiment of the present application are connected to perform data transmission, so as to implement the basic requirement of the data transmission circuit 200 for data transmission. In addition, the reserved channel 210 in the data transmission circuit 200 according to the embodiment of the present application may be selectively connected to the reserved pin 201, and under the condition that the data transmission circuit 200 requires an additional function, the reserved channel 210 may be selectively communicated with the reserved pin 201, so that the data transmission circuit 200 performs other data transmission through the reserved channel 210 and the reserved pin 201, so as to meet the requirement of the additional function. Therefore, according to the embodiment of the application, a data transmission channel can be selectively added according to the requirement, and the additional independent development is not needed, so that the development cost is saved.

The data transmission circuit 200 of the above embodiments of the present application can be applied to a device such as a control device. The control device is, for example, an integrated inverter, which can drive a motor of the vehicle and control the entire vehicle system of the vehicle.

Referring to fig. 16, fig. 16 is a schematic structural diagram of a control device to which a data transmission circuit according to an embodiment of the present disclosure is applied. The control device 40 may include a main chip 400, a socket connector 600, and an external circuit 800. The main chip 400 may have a plurality of modules, such as the main chip 400 including an operation module 410, a digital signal sampling module 420, a digital signal output module 430, an analog signal sampling module 440, and a LIN communication control module 450. It is to be understood that the modules of the main chip 400 are not limited thereto.

The main chip 400 may be connected to the external circuit 800, and the main chip 400 may also be connected to the optional circuit 230 and the selection switch 260.

The external circuit 800 may include a high-side driver circuit 840, a low-side driver circuit 860, and a LIN communication control circuit 820. The side driving circuit 840, the low side driving circuit 860, and the LIN communication control circuit 820 may be connected to the main chip 400.

The socket connector 600 may include active pins 202 and reserved pins 201. The active pin 202 may be connected to the selection switch 260, and the selection switch 260 may connect the active pin 202 to the external circuit 800, and then connect to the active pin of the main chip 400 through the external circuit 800, or directly connect to the active pin of the main chip 400, so as to implement transmission of different signals. The selection switch 260 may be a single pole, multiple throw switch. The reserved pin 201 may be connected to an optional circuit 230, the optional circuit 230 may selectively connect the reserved pin 201 to an external circuit and then to the reserved pin of the main chip 400 through the external circuit 800, or the optional circuit 230 may selectively connect the reserved pin 201 directly to the reserved pin of the main chip 400. The optional circuit 230 may be one or more switches, one or more switching circuits, or one or more reserved areas.

Referring to fig. 17, fig. 17 is a first structural schematic diagram of an integrated inverter according to an embodiment of the present disclosure. The integrated inverter 100 may include the data transmission circuit 200, and the data transmission circuit 200 is the data transmission circuit 200 of any of the above embodiments. The integrated inverter 100 may drive a motor of an automobile, and further drive a front axle or a rear axle of the automobile, so as to drive wheels of the automobile. The integrated inverter 100 may also control the overall system of the vehicle, such as brake, throttle, water pump, fan, lights, transmission temperature, etc.

It should be noted that, in the related art, the vehicle generally drives the motor of the vehicle by the inverter, and the entire vehicle system of the vehicle is controlled by the controller. However, this method requires separate design, which is costly and takes up much space. Some embodiments based on this application integrate the inverter and the controller. It should be noted that, in practical applications, different integrated inverters are designed according to different requirements or different platforms according to respective practical requirements. However, products for different platforms cannot communicate with each other, thereby increasing development costs and overall application costs of the integrated inverter product. And cannot be realized when additional functions are required, and the integrated inverter of the additional functions needs to be redesigned.

Further in this regard, some embodiments of the present application may include a reserved pin 201, where the reserved pin 201 may be selectively connected to the reserved channel 210 by the optional circuit 230, or it is understood that the reserved pin 201 may be selectively connected to the main chip by the optional circuit 230. Therefore, what kind of function is needed can configure the optional circuit 230 to connect the reserved pin 201 of the corresponding function to the pin of the corresponding function of the main chip. The requirement of additional functions can be realized, and additional development is not needed. But also to different platforms. Therefore, the integrated inverter 100 defined in the embodiments of the present application can reduce a large amount of space of the integrated inverter 100 in practical production applications, and save a large amount of manpower and cost.

Referring to fig. 18, fig. 18 is a schematic diagram illustrating a second structure of an integrated inverter according to an embodiment of the present application. The integrated inverter 100 may include a control structure 120 and a power drive structure 140. The control structure 120 is connected to the power driving structure 140, so that the signal transmission can be realized.

The control structure 120 may include an operation module 121, a vehicle system control module 122, a driving interaction module 123, a motor interaction module 124, a power supply module 125, and a CAN communication module 126. The operation module 121 may be understood as a processing module or a processor, and the operation module 121 may be connected to the vehicle system control module 122, the driving interaction module 123, the motor interaction module 124, the power supply 125, and the CAN communication module 126. The operation module 121 may obtain some signals, such as digital signals, analog signals, etc., to perform calculation to obtain a calculation result, and the operation module 121 may transmit the calculation result to an execution module that needs the calculation result. It is understood that the vehicle system control module 122, the drive interaction module 123, the motor interaction module 124, the power supply module 125 and the CAN communication module 126 CAN be understood as execution modules. It should be noted that the operation module 121 may further transmit the calculation result to the power driving structure 140, and the power driving structure 140 may drive the vehicle motor according to the calculation result.

In some embodiments, the operation module 121 may have three operation cores. The first operation core can calculate the motor driving function with the function safety of QM grade, the second operation core can calculate the operation (interruption) function with the function safety grade of ASIL-C and above, and the third operation core can calculate the software interface, data interaction, diagnosis and other functions with the function safety equal to that of QM. The operation module 121 in the embodiment of the present application may be used to calculate data of the control module of the entire vehicle system, and may also calculate data of the power driving structure 140. The embodiment of the application can realize the sharing of the driving motor and the control of the whole vehicle system.

The driving interaction module 123 and the motor interaction module 124 are both connected to the power driving structure 140 to drive the motor of the vehicle. The power supply module 125 is further connected to the power driving structure 140 and the vehicle system control module 122, and the power supply module 125 is configured to supply power, and may supply power to the power driving structure 140, or may supply power to the operation module 121, the vehicle system control module 122, and the like. That is, the power supply module 125 in the embodiment of the present application can realize the sharing of the driving motor and the control of the entire vehicle system. The CAN communication module 126 is further connected to the power driving structure 140, and the CAN communication module 126 is used for communication, and CAN communicate with the power driving structure 140, the driving interaction module 123, the motor interaction module 124, and also communicate with the operation module 121 and the vehicle system control module 122. That is, the CAN communication module 126 in the embodiment of the present application CAN realize the sharing of the driving motor and the control of the entire vehicle system.

The vehicle system control module 122 is used to control vehicle systems such as throttle, brake, water pump, fan, transmission temperature, lights, etc. The vehicle system control module 122 may include a digital signal sampling submodule 1221, a digital signal output submodule 1222, an analog signal sampling submodule 1223, a high-side driver submodule 1224, a low-side driver submodule 1225, a LIN communication control submodule 1226, an active channel 1206, a selection switch 1204, an active pin 1202, a reserved pin 1201, an optional circuit 1203, and a reserved channel 1205.

One or more of the active pins 1202 may be provided. The active pin 1202 may be an active pin of a socket connector, and the active pin 1202 may be connected to an active channel 1206 through a selection switch 1204. The active vias 1206 can be understood as active pins of a main chip or as line structures arranged on a circuit board. The selection switch 1204 may select the active pin 1202 to be connected to the corresponding module through the active channel 1206, and the selection switch 1204 may select the active pin 1202 to be connected to the digital signal sampling submodule 1221, the high-side driver submodule 1224 through the active channel 1206.

One or more reserved pins 1201 may be provided. The reserved pin 1201 may be a reserved pin of a socket connector, and the reserved pin 1201 may be selectively connected to an active channel 1205 through an optional circuit 1203. The reserved channel 1205 can be understood as a reserved pin of a main chip or as a line structure arranged on a circuit board. Optional circuitry 1203 may optionally connect, or communicate, reserved pin 1201 with reserved channel 1205. The optional circuit 1203 may also selectively connect the reserved pin 1201 to the corresponding module through the connected reserved channel 1205, such as an optional circuit 1203 that connects a reserved pin 1201 and a reserved channel 1205 by arranging a switching circuit or a switching switch twice in a preset area, and may further alternatively select one of the reserved pin 1201 connected to the digital signal sampling submodule 1221, the digital signal output submodule 1222, the analog signal sampling submodule 1223, the high-side driving submodule 1224, the low-side driving submodule 1225 and the LIN communication control submodule 1226 through a reserved channel 1205.

The digital signal sampling submodule 1221 is configured to obtain a digital signal, the digital signal output submodule 1222 is configured to output a digital signal, the analog signal sampling submodule 1223 is configured to obtain an analog signal, the high-side driver submodule 1224 is configured to output a high-side driver signal, the low-side driver submodule 1225 is configured to output a low-side driver signal, and the LIN communication control submodule 1226 is configured to output a LIN communication control signal.

The effective channel 1206, the selection switch 1204, the effective pin 1202, the reserved pin 1201, the selectable circuit 1203 and the reserved channel 1205 can refer to the effective channel 220, the selection switch 260, the effective pin 202, the reserved pin 202, the selectable circuit 230 and the reserved channel 210 shown in fig. 1 to 17, and are not described herein again.

The vehicle system control module 122 can be understood as a vehicle interaction module, and in the design of the scheme, a general scheme of various peripheral circuits is designed based on the basic signal type requirements of the vehicle system. And locking the use states of various signal types according to the actual requirements of the project, and designing a switchable structure of the spare function channel according to the categories of sampling signals, output driving signals and the like so as to deal with the uncertainty of the project development. The communication structure can design spare channels to meet the increasing demands of communication nodes in daisy chain or other serial communication modes. The channel selection of the sharing module can be controlled by the arithmetic unit, and the functional flexibility of the product is greatly improved. Based on the universal platform scheme of various types of signal type circuits, the circuits with the same functions have consistent structures, and when signals are required to be increased in the future, the reliability risk of circuit redevelopment can be avoided by using the same circuit scheme. Since excessive channel reservation may increase the component area, the optimal number of switchable channels is reserved without affecting the size of the inverter structure. In the compatible whole vehicle interactive module circuit topology design, in order to reduce the spare number of external wiring harness connectors, the connector cost and the shell design cost are optimized. The vehicle control circuit topology is designed such as in fig. 15. The pin foot can be reserved to the connector through using different materials to realize different function applications. The functions can be classified in different products, so that cost optimization is realized on the reserved functions of the connector, which are similar to the 3-4 reserved functions of pin connection functions, and cost change caused by excessive reserved circuit functions is avoided.

The power driving structure 140 may output three-phase ac power by inverting the high-voltage dc power input from the high-voltage battery to drive the motor to operate. The power driving structure 140 can directly receive the driving signal and the communication signal output by the integrated operation module 121. Because the operation module 121 integrates the control function of the vehicle system, compared with signals for vehicle control operation, such as motor state, rotation speed, actual torque and the like, which need to be uploaded by the inverter in the related art, the operation module 121 can directly collect the signals, and the inverter needs to receive instructions, such as output torque and the like, of the vehicle system control module in the related calculation, and the signals can be sent out after the operation module 121 directly calculates the signals. Therefore, compared with the related art, the inverter has the advantages that the physical cost of signal interaction such as wiring harness and production is reduced, the signal interaction efficiency is improved, and the signal reliability is improved.

The various components of the integrated inverter 100 may be disposed within a housing structure that may have an upper housing and a lower housing, such as the upper housing that secures the control structure 120 to the integrated inverter 100 and the power drive structure 140 to the lower housing. The upper housing is used to fix the control structure module, and the control structure 120 itself has a much smaller area than the power driving structure 140 disposed at the lower housing. Therefore, the overall size profile of the integrated inverter 100 is not sensitive to the area of the control structure 120, and the overall size of the integrated inverter 100 may not be affected after the additional devices and the reserved channels for the overall vehicle control function are added. The integrated inverter 100 can be realized to have unchanged volume, unchanged weight and unchanged production and assembly process and production cost, and the weight is only increased by part of the semiconductor materials after the function is added.

Referring to fig. 19, fig. 19 is a third structural schematic diagram of an integrated inverter according to an embodiment of the present application. The integrated inverter 100A shown in fig. 19 differs from the integrated inverter 100 shown in fig. 18 in that the integrated inverter 100 shown in fig. 18 has more operation modules 121 than the integrated inverter 100A shown in fig. 19.

In the embodiment of the present application, the integrated inverter 100 and the integrated inverter 100A may be commonly applied to the same vehicle, and when four-wheel drive is realized, one of the integrated inverters, i.e., the integrated inverter 100, may realize an operation function and a control function, while the other integrated inverter, i.e., the integrated inverter 100A, does not have an operation function but has a control function. So that the integrated inverter 100 can transmit its operation result to the integrated inverter 100A to realize control of the entire vehicle system.

Referring to fig. 20, fig. 20 is a first structural schematic diagram of an automobile according to an embodiment of the present application. The automobile 20 may include front wheels 21(21A and 21B), rear wheels 22(22A and 22B), a first pre-set device 23A, a second pre-set device 23B, a battery management system 24, a rear drive motor 25, a front drive motor 28, a first integrated inverter 100A, and a second integrated inverter 100B. The front wheels 21(21A and 21B), the rear wheels 22(22A and 22B), the first pre-set device 23A, the second pre-set device 23B, the battery management system 24, the rear drive motor 25, the front drive motor 28, the first integrated inverter 100A, the second integrated inverter 100B, and the like may be provided on the vehicle body 26 of the automobile 20.

One of the first integrated inverter 100A and the second integrated inverter 100B includes an operation module and a control module, and the other integrated inverter includes the control module but does not include the operation module.

Such as a first integrated inverter 100A including an operation module and a first control module connected to each other, the first integrated inverter 100A may be the integrated inverter 100 shown in fig. 17 and 18, and the first integrated inverter 100A may include the data transmission circuit 200 described in any one of fig. 1 to 15. The operation module may refer to the operation module 121, and the operation module may perform calculation on some signals acquired by the operation module to obtain a calculation result. The first control module can refer to the control structure 122, and the first control module can obtain the calculation result calculated by the operation module and control the first default device 23A according to the calculation result.

The second integrated inverter 100B includes an operation module instead of the operation module, the first integrated inverter 100A may be the integrated inverter 100C shown in fig. 19, and the second integrated inverter 100B may include the data transmission circuit 200 described in any one of fig. 1 to 15. The second control module may refer to the control structure 122, and may also obtain the calculation result calculated by the operation module, and control the second default device 23B according to the calculation result.

It is understood that the first default device 23A may be some devices in the vehicle system, the second default device 23B may be some other devices in the vehicle system, and the first default device 22A and the second default device 22B are different. Such as the first preselection device 23A comprising a water pump, relay, etc., and the second preselection device 22B comprising a fan, active intake grille, etc.

The first integrated inverter 100A may drive the rear wheels 22(22A and 22B) of the automobile 20, and the first integrated inverter 100A may be connected with some devices of the automobile 20, such as the rear drive motor 25, to drive the rear wheels 22(22A and 22B) through some devices, such as a rear axle, the rear drive motor 25, and the like.

The second integrated inverter 100B may drive the front wheels 21(21A and 21B) of the automobile 20, and the second integrated inverter 100B may be connected with some devices of the automobile 20, such as the front drive motor 28, to drive the front wheels 21(21A and 21B) through some devices, such as a front axle, the front drive motor 28, and the like.

In some embodiments, the first preset device 23A may be located at a first preset position of the automobile 20, and the second preset device 23B may be located at a second preset position of the automobile 20. The first preset position and the second preset position can be set according to actual requirements, for example, the first preset position is the front position of the automobile 20, and the second preset position is the rear position of the automobile 20. The first integrated inverter 100A can thus drive not only the rear drive motor 25 but also control devices at the rear of the automobile 20. The second integrated inverter 100B may not only drive the front drive motor 28, but may also control the front components of the automobile 20. Therefore, the second integrated inverter 100A for driving the front drive motor 28 and the first integrated inverter 100B for driving the rear drive motor 25 can control the front devices of the automobile 20, and the rear devices of the automobile 20 can be controlled, so that the wiring of the automobile 20 can be reduced.

For another example, the first predetermined position is a front position of the vehicle 20, and the second predetermined position is a rear position of the vehicle 20. It should be noted that the first preset position and the second preset position are not limited to the front or the rear of the automobile 20, and may be a certain local area of the automobile 20.

In some embodiments, the distance between the first preset device 23A and the first integrated inverter 100A is smaller than a first preset distance, which may be designed according to actual requirements, such as 1 meter, 2 meters, 2.2 meters, and so on. The distance between the second preset device 22B and the second integrated inverter 100B is smaller than a second preset distance, which may be designed according to actual requirements, such as 0.8 meter, 1.3 meter, 2.3 meter, and so on. Thus, the embodiment of the present application can select whether the device on the vehicle 20 is closer to the first integrated inverter 100A or the second integrated inverter 100B, and control the integrated inverter with the closer device, thereby reducing the wiring of the vehicle 20.

Wherein battery management system 24 is used to power first integrated inverter 100A and second integrated inverter 100B.

It should be noted that the integrated inverter having the operation function according to the embodiment of the present application may also drive other motors. Such as a first integrated inverter 100A, may drive the front wheels 21(21A and 21B) of the automobile 20, and the first integrated inverter 100A may be connected with some devices of the automobile 20, such as the front drive motor 28, to drive the front wheels 21(21A and 21B) through some devices, such as the front axle, the front drive motor 28, and the like. The second integrated inverter 100B may drive the rear wheels 22(22A and 22B) of the automobile 20, and the second integrated inverter 100B may be connected with some devices of the automobile 20, such as the rear drive motor 25, to drive the rear wheels 22(22A and 22B) through some devices, such as a rear axle, the rear drive motor 25, and the like.

Referring to fig. 21, fig. 21 is a schematic view of a second structure of an automobile according to an embodiment of the present application. The vehicle 20 may include a vehicle system 23, a battery management system 24, a rear drive motor 25, a front drive motor 28, an integrated inverter 100, and an inverter 27. The entire vehicle system 23, the battery management system 24, the rear drive motor 25, the front drive motor 28, the integrated inverter 100, the inverter 27, and the like may be provided to the vehicle body 26 of the vehicle 20. Wherein the battery management system 24 is used to power the integrated inverter 100 and the inverter 27.

The integrated inverter 100 may refer to the integrated inverter 100 shown in fig. 17 and 18, and the integrated inverter 100 may include the data transmission circuit 200 shown in any one of fig. 1 to 15. The integrated inverter 100 may include an operation module and a control module, wherein the operation module may refer to the operation module 121, and the control module may refer to the control structure 122. The operation module can calculate some signals acquired by the operation module to obtain a calculation result. The control module can obtain the calculation result calculated by the operation module and control the whole vehicle system 23 according to the calculation result. The entire vehicle system 23 may be a component of the vehicle 20 such as a throttle, a brake, a transmission temperature, a battery pack heat, a fan, an active intake grill, a water pump, a relay, etc.

The integrated inverter 100 may drive the rear wheels 22(22A and 22B) of the automobile 20, and the integrated inverter 100 may be connected with some devices of the automobile 20, such as the rear drive motor 25, to drive the rear wheels 22(22A and 22B) through some devices, such as a rear axle, the rear drive motor 25, and the like.

The inverter 27 is used only to drive the front wheels 21(21A and 21B) of the vehicle 20, and the inverter 27 may be connected to some devices of the vehicle 20 such as the front drive motor 28 to drive the front wheels 21(21A and 21B) through some devices such as a front axle, the front drive motor 28, and the like, without controlling the entire vehicle system 23.

In other embodiments, the integrated inverter 100 may drive the front wheels 21(21A and 21B) of the vehicle 20, and the integrated inverter 100 may be connected to some device of the vehicle 20, such as the front drive motor 28, to drive the front wheels 21(21A and 21B) through some device, such as the front axle, the front drive motor 28, and the like. The inverter 27 may drive the rear wheels 22(22A and 22B) of the automobile 20, and the inverter 27 may be connected to some devices of the automobile 20, such as the rear drive motor 25, to drive the rear wheels 22(22A and 22B) through some devices, such as a rear axle, the rear drive motor 25, and the like, without controlling the entire vehicle system 23.

Referring to fig. 22, fig. 22 is a schematic structural diagram of a third vehicle according to an embodiment of the present disclosure. The automobile 20 may include front wheels 21(21A and 21B), rear wheels 22(22A and 22B), a vehicle system 23, a battery management system 24, a rear drive motor 25, and an integrated inverter 100. Front wheels 21(21A and 21B), rear wheels 22(22A and 22B), a vehicle system 23, a battery management system 24, a rear drive motor 25, an integrated inverter 100, and the like may be provided to a vehicle body 26 of the automobile 20. Wherein the battery management system 24 is used to power the integrated inverter 100.

In other embodiments, the integrated inverter 100 may drive the front wheels 21(21A and 21B) of the vehicle 20, and the integrated inverter 100 may be connected to some device of the vehicle 20, such as the front drive motor 28, to drive the front wheels 21(21A and 21B) through some device, such as the front axle, the front drive motor 28, and the like.

In the application of two-drive automobile products, the integrated inverter 100 of the embodiment of the application can directly realize the inverter function and the whole automobile system control function, and reduce the parts and the quantity cost of the whole automobile. In a four-wheel drive automotive product application, multiple inverters are involved and each motor requires an independent inverter function. According to the inverter, the comprehensive competitiveness of automobile products can be improved by flexibly configuring function distribution according to different overall automobile arrangement conditions.

The inverter product capable of realizing the control function of the whole vehicle system is designed, the control function of the whole vehicle system is flexibly realized, and the platform application of multiple platform products and different driving requirements is realized. The inverter system performance is unchanged, the product volume is unchanged, the production flow is unchanged, the weight is slightly increased in the related technology, one part is saved for the whole vehicle, the communication wire harness is reduced, the important signal interaction speed is increased, and the product performance and the market competitiveness are improved. The scheme of the whole vehicle function compatible circuit is designed, pin resources can be reserved by fully utilizing connectors to deal with different external requirement changes, and repeated development and test verification cost of products caused by more flexible control functions of a whole vehicle system are avoided.

The data transmission path, the integrated inverter and the vehicle provided by the embodiment of the present application are described in detail above, and a specific example is applied in the present application to explain the principle and the embodiment of the present application, and the description of the above embodiment is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A data transmission circuit, comprising:

the effective channel is connected with an effective pin of a connector; and

2. The data transmission circuit of claim 1, wherein the plurality of active channels are connected to active pins of a connector, the plurality of reserved channels are connected to at least two of the plurality of reserved channels, and at least two of the plurality of reserved channels are selectively connected to a reserved pin of the connector.

3. The data transmission circuit of claim 2, wherein the data transmission circuit has a predetermined area for arranging one or more switching circuits, one switching circuit for connecting the at least two reserved channels and one reserved pin of the connector, and one switching circuit for connecting one of the at least two reserved channels and one reserved pin of the connector.

4. The data transmission circuit of claim 3, wherein the switching circuit comprises at least one of a first switching circuit, a second switching circuit, a third switching circuit, a fourth switching circuit, a fifth switching circuit, and a sixth switching circuit;

5. The data transmission circuit according to claim 4, wherein the first switching circuit includes a first resistor and a first capacitor, one end of the first resistor is connected to one of the reserved pins, the other end of the first resistor is connected to one of the reserved channels, and the first capacitor is connected between the reserved pin and the first resistor.

6. The data transmission circuit according to claim 4, wherein the second switching circuit includes a second resistor and a second capacitor, one end of the second resistor is connected to one of the reserved pins, the other end of the second resistor is connected to one of the reserved channels, and the second capacitor is connected between one of the reserved channels and the second resistor.

7. The data transmission circuit according to claim 4, wherein the third switching circuit includes a third resistor, a fourth resistor, and a third capacitor, one end of the third resistor is connected to one of the reserved pins, the other end of the third resistor is connected to one of the reserved channels, one end of the fourth resistor is connected between the third resistor and the reserved channel, the other end of the fourth resistor is grounded, one end of the third capacitor is connected between the third resistor and the reserved channel, and the other end of the third capacitor is grounded.

8. The data transmission circuit according to claim 4, wherein the fourth switching circuit includes a fifth resistor and a fourth capacitor, one end of the fifth resistor is connected to one of the reserved pins, the other end of the fifth resistor is connected to one of the reserved channels, one end of the fourth capacitor is connected between the fifth resistor and the reserved pin, and the other end of the fourth capacitor is grounded.

9. The data transmission circuit according to claim 4, wherein the fifth switching circuit comprises a sixth resistor and a seventh resistor, the sixth resistor and the seventh resistor are connected in series, the sixth resistor is further connected with a power supply terminal, the seventh resistor is further connected with one of the reserved pins, one end of a power driving chip is connected between the sixth resistor and the seventh resistor, and the other end of the power driving chip is connected with one of the reserved channels.

10. The data transmission circuit according to claim 4, wherein the sixth switching circuit includes an eighth resistor and a ninth resistor, the eighth resistor and the ninth resistor are connected in series, the ninth resistor is further connected to ground, the eighth resistor is further connected to one of the reserved pins, one end of a power driving chip is connected between the eighth resistor and the ninth resistor, and the other end of the power driving chip is connected to one of the reserved channels.

11. The data transmission circuit according to any one of claims 4 to 10, wherein the reserved areas include a first reserved area for arranging the first switching circuit or the second switching circuit, a second reserved area for arranging the third switching circuit, a third reserved area for arranging the fourth switching circuit, and a fourth reserved area for arranging the fifth switching circuit or the sixth switching circuit.

12. The data transmission circuit of claim 1, further comprising one or more switches, one of the switches for connecting the at least two reserved channels to a reserved pin of the connector, and one of the switches for connecting one of the at least two reserved channels to a reserved pin of the connector.

13. The data transmission circuit of claim 12, wherein the one or more switches connect all reserved channels.

14. The data transmission circuit according to any one of claims 1 to 10, 12 and 13, wherein the connector comprises one, two or three reserved pins, one reserved pin being used for transmitting at least one of a digital signal, an analog signal, a high side driving signal, a low side driving signal and a control signal.

15. An integrated inverter comprising the data transmission circuit of any one of claims 1 to 14, the integrated inverter being configured to drive a vehicle electric motor and to control a vehicle system.

16. The integrated inverter of claim 15, wherein the integrated inverter is configured to drive a front drive motor or a rear drive motor of an automobile.

17. An automobile comprising an integrated inverter as claimed in claim 15 or 16.

18. The vehicle of claim 17 further comprising an inverter for driving either the front drive motor or the rear drive motor of the vehicle, and wherein one of the inverter and the integrated inverter is used for driving the front drive motor and the other is used for driving the rear drive motor of the vehicle.

19. An automobile, comprising:

wherein the first pre-set device is different from the second pre-set device.

20. The vehicle of claim 19, wherein the first predetermined device is located in a first predetermined area of the vehicle and the second predetermined device is located in a second predetermined area of the vehicle.

21. The vehicle of claim 20, wherein the first integrated inverter is further configured to drive a front drive motor of the vehicle, and the first control module is configured to control a front component of the vehicle;

22. The vehicle of claim 20, wherein the first integrated inverter is further configured to drive a rear drive motor of the vehicle, and the first control module is configured to control a device at the rear of the vehicle;

23. The vehicle of claim 19, wherein the first integrated inverter is located a distance from the first predefined device that is less than a first predefined distance and the second integrated inverter is located a distance from the second predefined device that is less than a second predefined distance.

24. The automobile of any of claims 19-23, wherein at least one of the first control module and the second control module comprises a data transmission circuit of any of claims 1-14.