Integrated multifunctional power domain controller and vehicle

Abstract

The invention discloses an integrated multifunctional power domain controller and a vehicle, and relates to the technical field of power domain controllers, the integrated multifunctional power domain controller comprises a main circuit board, a main control chip and a power management chip, the main control chip is arranged on the main circuit board, and the power management chip is arranged on the main circuit board; the main control chip comprises a vehicle control unit VCU, a motor control unit MCU, a battery management system BMS, a vehicle-mounted charger OBC control unit, a DC / DC driving control unit and a thermal management control unit, the power management chip is arranged on the main circuit board, and the power management chip is connected with a KL15 electric signal line, a KL30 electric signal line and the main control chip. The main control chip integrates a vehicle control function, a battery management system function, a motor control function, a vehicle-mounted charger control function, a DC / DC driving control function and a thermal management control function, the functions are integrated together according to an integrated idea, the control delay time is shortened, the hardware complexity is greatly reduced, the occupied space of hardware is reduced, and the cost is reduced. And the weight is obviously reduced.

Description

Technical Field

[0001] This invention relates to the field of power domain controller technology, and in particular to an integrated multi-functional power domain controller and vehicle. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source (or use conventional vehicle fuels but employ new onboard power devices), integrating advanced technologies in vehicle power control and drive, resulting in vehicles with advanced technical principles and new technologies and structures. New energy vehicles include four main types: hybrid electric vehicles (HEVs), battery electric vehicles (BEVs, including solar-powered vehicles), fuel cell electric vehicles (FCEVs), and other new energy vehicles (such as high-efficiency energy storage devices like supercapacitors and flywheels).

[0003] In existing technologies, traditional new energy vehicles adopt a distributed electronic control architecture, which essentially does not break away from the electronic and electrical architecture of fuel vehicles. The motor control response of new energy vehicles is faster than that of fuel vehicles. The distributed electronic control architecture has problems such as high control latency, high hardware complexity, and large space occupation, making it difficult to meet the needs of high-performance new energy vehicles. Summary of the Invention

[0004] This invention provides an integrated multi-functional power domain controller and vehicle to solve the technical problems of high control latency, high hardware complexity, and large space occupation in existing new energy vehicles that adopt a distributed electronic control architecture.

[0005] Firstly, an integrated multi-functional power domain controller is provided, comprising: Main circuit board; The main control chip is located on the main circuit board. The main control chip includes a vehicle control unit (VCU), a motor control unit (MCU), a battery management system (BMS), an on-board charger (OBC) control unit, a DC / DC drive control unit, and a thermal management control unit. A power management chip is located on the main circuit board and is connected to the KL15 electrical signal line, the KL30 electrical signal line and the main control chip.

[0006] In some embodiments, the integrated multi-functional power domain controller further includes: A first motor drive module is connected to a first motor and the main control chip; The second motor drive module is connected to the second motor and the main control chip.

[0007] In some embodiments, the integrated multi-functional power domain controller further includes: Power module circuit board; A digital signal processing chip is disposed on the power module circuit board, and the digital signal processing chip is connected to the main control chip via a bus. An on-board charger drive module is disposed on the power module circuit board, and the on-board charger drive module is connected to the digital signal processing chip; A DC / DC drive module is mounted on the power module circuit board and is connected to the main control chip.

[0008] In some embodiments, the integrated multi-functional power domain controller further includes: An AC connector and a high-voltage DC connector are provided. The AC connector is connected to the on-board charger drive module through the power module circuit board. The high-voltage DC connector is connected to the DC / DC drive module through the power module circuit board. The high-voltage DC connector is also connected to the first motor drive module and the second motor drive module.

[0009] In some embodiments, the integrated multi-functional power domain controller further includes: High-voltage control module circuit board; A high-voltage control chip is located on the circuit board of the high-voltage control module, and the high-voltage control chip is connected to the main control chip via a bus. A high-voltage acquisition active front-end chip is disposed on the circuit board of the high-voltage control module, and the high-voltage acquisition active front-end chip is connected to the high-voltage control chip; A relay driver chip is disposed on the circuit board of the high voltage control module, and the relay driver chip is connected to the high voltage control chip; An explosion-proof fuse driver chip is disposed on the circuit board of the high-voltage control module, and the explosion-proof fuse driver chip is connected to the high-voltage control chip.

[0010] In some embodiments, the integrated multi-functional power domain controller further includes: Battery active front-end module circuit board; Multiple battery active front-end chips are disposed on the circuit board of the battery active front-end module. Each battery active front-end chip is connected to a cell in the battery pack. The multiple battery active front-end chips are connected together, and one of the battery active front-end chips is connected to the main control chip via a bus.

[0011] In some embodiments, the integrated multi-functional power domain controller further includes: Multiple battery active front-end chips are connected to form a daisy-chain topology.

[0012] In some embodiments, the integrated multi-functional power domain controller further includes: At least one CAN bus chip, each of which is located on the main circuit board and connected to the main control chip; At least one LIN bus chip, each of which is located on the main circuit board and connected to the main control chip.

[0013] At least one Ethernet bus chip, each of which is located on the main circuit board and connected to the main control chip.

[0014] In some embodiments, the integrated multi-functional power domain controller further includes: The power management chip is model MC33FS8510.

[0015] Secondly, a vehicle is provided that includes the aforementioned integrated multi-functional power domain controller.

[0016] The beneficial effects of the technical solution provided by this invention include: This invention provides an integrated multi-functional power domain controller and vehicle. The main control chip of the integrated multi-functional power domain controller includes a vehicle control unit (VCU), a motor control unit (MCU), a battery management system (BMS), an on-board charger (OBC) control unit, a DC / DC drive control unit, and a thermal management control unit. In other words, a single main control chip integrates vehicle control, battery management system, motor control, on-board charger control, DC / DC drive control, and thermal management control functions. These six control functions are integrated in a unified manner, significantly reducing control latency (to less than 50µs), hardware complexity, and hardware cost. It eliminates multiple controllers, controller housings, and some wiring harnesses found in traditional distributed electronic control architectures, reducing hardware space and weight, making it suitable for the needs of high-performance new energy vehicles. Simultaneously, the reduced number of controllers and wiring harnesses significantly optimizes the supply chain, reduces the number of components procured, lowers procurement risks, and enhances the vehicle's market competitiveness. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 An electrical block diagram of an integrated multi-functional power domain controller is provided for an embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides an integrated multi-functional power domain controller that can solve the technical problems of high control latency, high hardware complexity, and large space occupation in existing new energy vehicles that adopt a distributed electronic control architecture.

[0021] See Figure 1 As shown, this embodiment of the invention provides an integrated multi-functional power domain controller, including: a main circuit board, a main control chip, and a power management chip.

[0022] The main control chip is located on the main circuit board. The main control chip includes a vehicle control unit (VCU), a motor control unit (MCU), a battery management system (BMS), an on-board charger (OBC) control unit, a DC / DC drive control unit, and a thermal management control unit.

[0023] The power management chip is located on the main circuit board and is connected to the KL15 electrical signal line, the KL30 electrical signal line, and the main control chip. The power management chip is used to convert the voltage of the KL15 or KL30 electrical signal line into the operating voltage of the main control chip and then supply it to the main control chip.

[0024] The integrated multi-functional power domain controller in this embodiment of the invention comprises a main control chip including a vehicle control unit (VCU), a motor control unit (MCU), a battery management system (BMS), an on-board charger (OBC) control unit, a DC / DC drive control unit, and a thermal management control unit. In other words, a single main control chip integrates vehicle control, battery management system, motor control, on-board charger control, DC / DC drive control, and thermal management control functions. These six functions are integrated into a single unit, significantly reducing control latency (to less than 50µs), hardware complexity, and hardware cost. It eliminates multiple control unit housings and some wiring harnesses found in traditional distributed electronic control architectures, reducing hardware space and weight, making it suitable for the needs of high-performance new energy vehicles. Simultaneously, the reduced number of controllers and wiring harnesses significantly optimizes the supply chain, reduces the number of components procured, lowers procurement risks, and enhances the vehicle's market competitiveness.

[0025] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 1 As shown, the integrated multi-functional power domain controller also includes: a first motor drive module and a second motor drive module.

[0026] The first motor drive module is connected to the first motor and the main control chip. The second motor drive module is connected to the second motor and the main control chip. The first motor can be a drive motor that rotates the vehicle's wheels, and the second motor can be a vehicle generator.

[0027] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 1 As shown, the integrated multi-functional power domain controller also includes: a power module circuit board, a digital signal processing chip (DSP), an on-board charger (OBC) drive module, and a DC / DC drive module.

[0028] The digital signal processing chip is located on the power module circuit board, and the digital signal processing chip is connected to the main control chip via a bus.

[0029] The on-board charger (OBC) drive module is mounted on the power module circuit board, and the on-board charger drive OBC module is connected to the digital signal processing chip.

[0030] The DC / DC drive module is mounted on the power module circuit board and is connected to the main control chip.

[0031] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 1 As shown, the integrated multi-functional power domain controller further includes an AC connector and an HV DC connector. The AC connector is connected to the on-board charger drive module through the power module circuit board, and the HV DC connector is connected to the DC / DC drive module through the power module circuit board. The HV DC connector is also connected to the first motor drive module and the second motor drive module.

[0032] Specifically, the output terminal of the on-board charger drive module is connected to the DC bus of the battery pack, and the high-voltage DC connector, the input terminal of the DC / DC drive module, the input terminal of the first motor drive module, and the input terminal of the second motor drive module are all connected to the DC bus of the battery pack.

[0033] In practical applications, the AC connector connects to an external AC charging station to charge the battery pack during charging; during discharging, it connects to external electrical appliances (such as induction cookers, electric ovens, refrigerators, etc.) to provide 220V / 50Hz power for the battery pack to discharge, enabling the external electrical appliances to operate.

[0034] In charging mode, the DC connector connects to an external DC charging pile to charge the battery pack; in discharging mode, it connects to the vehicle's high-voltage electrical appliances (such as PTC, high-voltage motor, etc.) to provide high-voltage power for the battery pack to discharge externally, enabling the vehicle's high-voltage electrical appliances to operate.

[0035] In addition, the integrated multi-functional power domain controller also includes a low-voltage connector (LV Connector), which is connected to the main control chip through the main circuit board. The LV Connector is used to transmit signals that the main control chip interacts with other parts of the vehicle, such as CAN bus signals, LIN bus signals, Ethernet bus signals, accelerator pedal signals, and brake signals.

[0036] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 1 As shown, the integrated multi-functional power domain controller also includes: a high-voltage control module circuit board, a high-voltage control chip, a high-voltage acquisition active front-end chip (high-voltage acquisition AFE), a relay driver chip, and a Profuse driver chip for explosion-proof fuses.

[0037] The high-voltage control chip is located on the circuit board of the high-voltage control module, and the high-voltage control chip is connected to the main control chip via a bus.

[0038] The high-voltage acquisition active front-end chip is located on the high-voltage control module circuit board, and the high-voltage acquisition active front-end chip is connected to the high-voltage control chip.

[0039] The relay driver chip is located on the circuit board of the high-voltage control module, and the relay driver chip is connected to the high-voltage control chip.

[0040] The Profuse driver chip for the blasting fuse is located on the circuit board of the high-voltage control module, and the blasting fuse driver chip is connected to the high-voltage control chip.

[0041] In practical applications, the high-voltage acquisition active front-end chip (high-voltage acquisition AFE) performs insulation detection, total voltage detection, and shunt sampling functions, transmitting the acquired signals to the high-voltage control chip. The high-voltage control chip identifies relevant signals to determine whether a high-voltage fault exists. When there is no high-voltage fault, the relay driver chip is normally enabled, driving the main relay; when a high-voltage fault occurs, the relay driver chip is disabled, disconnecting the main relay, and simultaneously enabling the explosion-proof fuse driver chip to detonate the explosion-proof fuse, disconnecting the high-voltage power supply.

[0042] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 1 As shown, the integrated multi-functional power domain controller also includes: a battery active front-end module circuit board and multiple battery active front-end chips (battery AFE).

[0043] Multiple battery active front-end chips are disposed on the battery active front-end module circuit board. Each battery active front-end chip is connected to a corresponding battery cell. The multiple battery active front-end chips are connected together, and one of the battery active front-end chips is connected to the main control chip via a bus. Optionally, the multiple battery active front-end chips are connected to form a daisy-chain topology. The daisy-chain topology can minimize the routing length of each load branch and avoid reflection interference of branch signals to the main signal.

[0044] In practical applications, the active front-end chip detects the voltage of individual cells in the battery pack, thereby identifying the battery pack's charge level and health status. This information is then transmitted to the main control chip via a daisy chain. The main control chip identifies the relevant signals and formulates charging or discharging strategies accordingly.

[0045] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 1 As shown, the integrated multi-functional power domain controller also includes at least one CAN bus chip (CAN transceiver), at least one LIN bus chip (LIN transceiver), and at least one Ethernet bus chip.

[0046] Each of the CAN bus chips is located on the main circuit board and connected to the main control chip, facilitating communication between the main control chip and other devices.

[0047] Each of the LIN bus chips is located on the main circuit board and connected to the main control chip, facilitating communication between the main control chip and other devices.

[0048] Each of the Ethernet bus chips is located on the main circuit board and connected to the main control chip, facilitating communication between the main control chip and other devices.

[0049] As an optional implementation, in one embodiment of the invention, the power management chip may be an MC33FS8510, which is compatible with a wide input voltage range and achieves 12V / 24V system compatibility, and can be applied to passenger cars and commercial vehicles.

[0050] As an optional implementation, in one embodiment of the invention, the main control chip may be a Renesas RH850_U2B, which is equipped with four 400 MHz CPU cores with a dual-core lockstep structure, possessing powerful computing power and effectively supporting the operation of the six major functions.

[0051] In addition, the main control chip is equipped with multiple input and output ports. The input ports include: resolver signal acquisition, phase current acquisition, motor temperature acquisition, brake signal acquisition, water temperature acquisition, high voltage interlock input, accelerator pedal signal acquisition, charging port temperature detection, national standard AC charging CC / CP signal acquisition, and OD signal acquisition. The output ports include: SVPWM output, water pump fan drive output, high voltage interlock output, and charging indicator light control.

[0052] In practical applications, the main control chip collects braking signals, accelerator pedal signals, etc., and calculates the torque, speed, and other information required to drive the vehicle to realize the vehicle control unit (VCU) function. The torque, speed, and other information calculated by the main control chip, combined with signals such as resolver, phase current, and motor temperature, are used to realize the motor control unit (MCU) function through the first and second motor drive modules. Simultaneously, the main control chip collects CC / CP and OD sampling signals, and uses the digital signal processing chip (DSP), the on-board charger (OBC) drive module, and the DC / DC drive module to realize the OBC and DC / DC functions.

[0053] The main control chip interacts with the high-voltage control module (HCM) circuit board and the battery active front-end circuit board to realize the battery management system (BMS) function. Simultaneously, the main control chip collects the temperatures of the motor, battery, coolant, etc., and drives or shuts down relevant water pumps and fans to realize the thermal management unit function.

[0054] This invention provides a vehicle that includes the aforementioned integrated multi-functional power domain controller.

[0055] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0056] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the invention herein.

Claims

1. A multi-functional power domain controller, characterized in that, include: Main circuit board; The main control chip is located on the main circuit board. The main control chip includes a vehicle control unit (VCU), a motor control unit (MCU), a battery management system (BMS), an on-board charger (OBC) control unit, a DC / DC drive control unit, and a thermal management control unit. A power management chip is located on the main circuit board and is connected to the KL15 electrical signal line, the KL30 electrical signal line and the main control chip.

2. The integrated multi-functional power domain controller according to claim 1, characterized in that, Also includes: A first motor drive module is connected to a first motor and the main control chip; The second motor drive module is connected to the second motor and the main control chip.

3. The integrated multi-functional power domain controller according to claim 2, characterized in that, Also includes: Power module circuit board; A digital signal processing chip is disposed on the power module circuit board, and the digital signal processing chip is connected to the main control chip via a bus. An on-board charger drive module is disposed on the power module circuit board, and the on-board charger drive module is connected to the digital signal processing chip; A DC / DC drive module is mounted on the power module circuit board and is connected to the main control chip.

4. The integrated multi-functional power domain controller according to claim 3, characterized in that, Also includes: An AC connector and a high-voltage DC connector are provided. The AC connector is connected to the on-board charger drive module through the power module circuit board. The high-voltage DC connector is connected to the DC / DC drive module through the power module circuit board. The high-voltage DC connector is also connected to the first motor drive module and the second motor drive module.

5. The integrated multi-functional power domain controller according to claim 1, characterized in that, Also includes: High-voltage control module circuit board; A high-voltage control chip is located on the circuit board of the high-voltage control module, and the high-voltage control chip is connected to the main control chip via a bus. A high-voltage acquisition active front-end chip is disposed on the circuit board of the high-voltage control module, and the high-voltage acquisition active front-end chip is connected to the high-voltage control chip; A relay driver chip is disposed on the circuit board of the high voltage control module, and the relay driver chip is connected to the high voltage control chip; An explosion-proof fuse driver chip is disposed on the circuit board of the high-voltage control module, and the explosion-proof fuse driver chip is connected to the high-voltage control chip.

6. The integrated multi-functional power domain controller according to claim 1, characterized in that, Also includes: Battery active front-end module circuit board; Multiple battery active front-end chips are disposed on the circuit board of the battery active front-end module. Each battery active front-end chip is connected to a cell in the battery pack. The multiple battery active front-end chips are connected together, and one of the battery active front-end chips is connected to the main control chip via a bus.

7. The integrated multi-functional power domain controller according to claim 6, characterized in that: Multiple battery active front-end chips are connected to form a daisy-chain topology.

8. The integrated multi-functional power domain controller according to claim 1, characterized in that, Also includes: At least one CAN bus chip, each of which is located on the main circuit board and connected to the main control chip; At least one LIN bus chip, each of the LIN bus chips is located on the main circuit board and connected to the main control chip; At least one Ethernet bus chip, each of which is located on the main circuit board and connected to the main control chip.

9. The integrated multi-functional power domain controller according to claim 1, characterized in that: The power management chip is model MC33FS8510.

10. A vehicle, characterized in that, Includes the integrated multi-functional power domain controller as described in any one of claims 1-9.

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