Electronic drive control system and electric vehicle

Abstract

The utility model provides an electronic drive control system and an electric vehicle. The electronic drive control system comprises a power assembly and an integrated control module, wherein the integrated control module integrates a battery management unit, a vehicle control unit and a control unit of the power assembly into a chip; the vehicle control unit is connected with the battery management unit and the control unit of the power assembly, the battery management unit is in communication connection with a battery assembly of the electric vehicle, and the control unit of the power assembly is electrically connected with the power assembly; the power assembly is electrically connected with a motor of the electric automobile. By adopting the scheme, a communication line can be simplified, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to an electronic drive control system and an electric vehicle. BACKGROUND

[0002] The power electronic design of an electric vehicle plays a crucial role in the efficiency and performance of the electric vehicle. More and more electric vehicles currently use a centralized computing architecture of EEA (Electrical / Electronic Architecture) to integrate some controllers together to reduce costs.

[0003] At present, the traditional electric vehicle usually uses physical level control integration, each ECU (Electronic Control Unit) uses a separate controller (MCU), and multiple controllers communicate with each other, resulting in complex communication lines and high cost. CONTENT OF THE UTILITY MODEL

[0004] The present application provides an electronic drive control system and an electric vehicle to solve the above technical problems in the prior art.

[0005] According to a first aspect of the present application, an electronic drive control system is provided, comprising: a power component and an integrated control module integrating a battery management unit, a vehicle control unit and a control unit of the power component in one chip;

[0006] The vehicle control unit is connected to the battery management unit and the control unit of the power component, the battery management unit is in communication connection with the battery component of the electric vehicle, the control unit of the power component is in electrical connection with the power component, and the power component is in electrical connection with the motor of the electric vehicle.

[0007] In some embodiments, the power component includes an inverter, and the control unit of the power component includes an inverter control unit.

[0008] The inverter control unit is in electrical connection with the inverter, and the inverter is connected to the motor of the electric vehicle.

[0009] In some embodiments, the power component further includes a DCDC converter, and the control unit of the power component includes a DCDC converter control unit.

[0010] The DCDC converter control unit is in electrical connection with the DCDC converter, and the DCDC converter is connected to the low-voltage component of the electric vehicle.

[0011] In some embodiments, the electronic drive control system further includes an on-board charger component, and the on-board charger component is in communication connection with the vehicle control unit.

[0012] In some embodiments, the electronic drive control system further comprises a first CAN communication line, and the on-board charger assembly is connected to the vehicle control unit through the first CAN communication line.

[0013] In some embodiments, the electronic drive control system further comprises a second CAN communication line, and the battery management unit is connected to the battery assembly of the electric vehicle through the second CAN communication line.

[0014] In some embodiments, the electronic drive control system further comprises a third CAN communication line, and the vehicle control unit is connected to the central control system of the electric vehicle through the third communication line.

[0015] In some embodiments, the electronic drive control system further comprises a fourth CAN communication line.

[0016] The vehicle control unit is connected to the DC charging socket of the electric vehicle through the fourth CAN communication line.

[0017] In some embodiments, the integrated control module is an MCU chip.

[0018] According to a second aspect of the present application, an electric vehicle is provided, comprising the above electronic drive control system.

[0019] In summary, the electronic drive control system and the electric vehicle provided by the present application have at least the following beneficial effects:

[0020] By using the integrated control module integrating the battery management unit, the vehicle control unit and the control unit of the power assembly, multiple functions are integrated in one chip, compared with the existing separate control chip corresponding to each function, the communication between the originally separate control chips can be omitted, thereby simplifying the communication line and reducing the use of chips to reduce costs. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings or solutions according to these drawings without creative labor.

[0022] Figure 1 The structural block diagram of the electronic drive control system in an embodiment of the present application;

[0023] Figure 2 The topological graph of the electronic drive control system in an embodiment of the present application;

[0024] Figure 3 Topology of the existing electronic drive control. DETAILED DESCRIPTION

[0025] In the description of the present application, it needs to be understood that, if the description of orientation or positional relationship appears, such as central, longitudinal, transverse, length, width, thickness, upper, lower, front, back, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, axial, radial, circumferential, etc., without special indication, it is understood that the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] In addition, if the features limited by “first”, “second” appear, it is only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. The features limited by “first”, “second” can explicitly or implicitly include at least one of the limited features. If the description of “plurality” appears, it generally means at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0027] In the present application, unless otherwise explicitly specified and limited, if the terms such as “mounting”, “connection”, “connecting”, “fixing” appear, they should be understood in a broad sense. For example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection, it can be direct connection, or indirect connection through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In the description of the present application, if the terms “one embodiment”, “some embodiments”, “example”, “specific example”, or “some examples” appear, it means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0029] In one embodiment of the present application, an electronic drive control system is provided, such as Figure 1 As shown, the electronic drive control system 100 includes an integrated control module 110 and a power assembly 130. The integrated control module 110 is a control chip, specifically, the integrated control module 110 integrates a battery management unit, a vehicle control unit and a control unit of the power assembly. Among them, the battery management unit, the vehicle control unit and the control unit are functional units inside the integrated control module 110, which can realize the corresponding functions. Specifically, the battery management unit is the functional unit corresponding to the BMS (Battery Management System) chip, which is used to realize the function of the BMS chip; the vehicle control unit is the functional unit corresponding to the VCU (Vehicle Control Unit) chip, which is used to realize the function of the VCU chip, and the control unit of the power assembly is a functional unit for realizing the control function of the power assembly. For example, the software programs of each functional unit can be burned on the integrated control module 110, so that the integrated control module 110 integrates the functions of each functional unit. The functions of multiple functional units are integrated in a control chip, and the control chip is arranged on a PCBA (Printed Circuit Board Assembly).

[0030] Among them, the power assembly 130 is a component containing power semiconductor devices, for example, the power assembly 130 can include an inverter, and can also include a DCDC (Direct Current-Direct Current) converter, etc. Specifically, the vehicle control unit in the integrated control module 110 is connected with the battery management unit and the control unit of the power assembly; among them, the battery management unit is in communication connection with the battery assembly 200 of the electric vehicle, to communicate with the battery assembly 200. For example, the battery assembly 200 can be a high-voltage battery assembly. The control unit of the power assembly in the integrated control module 110 is electrically connected with the power assembly 130, to control the work of the power assembly 130. The power assembly 130 is electrically connected with the motor 300 of the electric vehicle.

[0031] In the prior art, the battery management unit, the vehicle control unit and the control unit of the power assembly all use independent control chips, which are BMS chips, VCU chips and control chips of the power assembly, respectively; the BMS chip needs to communicate with the battery assembly 200 and the VCU chip, the VCU chip needs to communicate with the control chip of the power assembly, and also needs to communicate with other modules of the electric vehicle, the communication lines are multiple and complex, and the use of multiple control chips is high in cost.

[0032] In the electronic drive control system provided in this application, the battery management unit in the integrated control module 110 communicates with the battery pack 200, and the control unit of the power component in the integrated control module 110 is electrically connected to the power component 130. By adopting the integrated control module 110 that integrates the battery management unit, the vehicle control unit, and the control unit of the power component, multiple functions are integrated into one chip. Compared with the existing separate control chips for each function, the communication between the original separate control chips can be omitted, thereby simplifying the communication lines and reducing the use of chips, thus reducing costs.

[0033] Specifically, the integrated control module 110 can be an MCU chip. Multiple functional units are integrated within a single MCU chip, and one MCU chip uses one PCBA, thereby integrating multiple functions into a single PCBA through a single MCU chip, simplifying communication lines and saving costs.

[0034] In some embodiments, such as Figure 2 The power component 130 includes an inverter ( Figure 2 The PWR power part), the control unit of the power component 130 includes the inverter control unit ( Figure 2 The inverter control unit in the integrated control module 110 is electrically connected to the inverter, which is connected to the electric motor 300 of the electric vehicle.

[0035] The inverter control unit is a functional unit that implements the control function of the inverter. By integrating the inverter control function into the integrated control module 110, it is not necessary to use a separate control chip to control the inverter, which simplifies the communication lines and saves costs.

[0036] Specifically, Figure 2 In the integrated control module 110, VCU represents the vehicle control unit integrated within the integrated control module 110, and BMS represents the battery management unit integrated within the integrated control module 110. For example... Figure 2 As shown, the battery assembly 200 is a high-voltage battery assembly, which may include a battery pack (CM Ce), an external circuit (E-BOX) connected to the battery pack, and a battery monitoring chip (CMU). The battery pack is electrically connected to the inverter through the external circuit, and is also used to electrically connect to other components of the electric vehicle, such as the high-voltage heater (HV-heater AC) of the air conditioning system, the electric air conditioning compressor (EKK), and the high-voltage heater (HV-heater Battery) of the battery. The battery monitoring chip is communicatively connected to the battery management unit in the integrated control module 110.

[0037] In some embodiments, such as Figure 2 As shown, the power component 130 also includes a DC-DC converter ( Figure 2In the DCDC (Digital-to-Chip) circuit, the power component control unit includes the DCDC converter control unit (…). Figure 2 (Integrated control module 110, the DC-DC converter control unit is electrically connected to the DC-DC converter, which is connected to the low-voltage components of the electric vehicle to provide DC power to the low-voltage components. For example, the low-voltage components can be a 12V battery.) Figure 2 (12V battery).

[0038] The DC-DC converter control unit is a functional unit that implements the control function of the DC-DC converter. By integrating the control function of the DC-DC converter into the integrated control module 110, it is not necessary to use a separate control chip to control the DC-DC converter, which can further simplify the communication line and save costs.

[0039] In some embodiments, such as Figure 2 As shown, the electronic drive control system also includes an on-board charger assembly (OBC), which is communicatively connected to the vehicle control unit in the integrated control module 110. Specifically, the on-board charger assembly includes an on-board charger and an on-board charger control chip; the on-board charger control chip is connected to the vehicle control unit in the integrated control module 110 via a communication line and is electrically connected to the on-board charger, used to control the operation of the on-board charger. The on-board charger is connected to the AC charger socket of the electric vehicle, which is connected to an external AC charging device. The on-board charger can convert the input AC to DC to charge the battery pack in the battery assembly 200.

[0040] Specifically, such as Figure 2 As shown, the integrated control module 110, inverter, on-board charger assembly, and DC-DC converter can be housed in one area, such as within a circuit board or electrical frame.

[0041] Furthermore, the electronic drive control system also includes a first CAN communication line, for example... Figure 2 ③-CAN is the first CAN communication line, through which the on-board charger assembly communicates with the vehicle control unit in the integrated control module 110.

[0042] The first CAN communication line supports CAN communication. By using the first CAN communication line to connect the on-board charger assembly and the vehicle control unit of the integrated control module 110, it is convenient for the integrated control module 110 and the on-board charger assembly to communicate via CAN. Specifically, the on-board charger control chip in the on-board charger assembly is connected to the vehicle control unit of the integrated control module 110 through the first CAN communication line.

[0043] In some embodiments, the electronic drive control system further includes a second CAN communication line, for example... Figure 2 In the diagram, ①-CAN refers to the second CAN communication line. The battery management unit in the integrated control module 110 communicates with the battery pack 200 of the electric vehicle through the second CAN communication line, thereby facilitating CAN communication between the integrated control module 110 and the battery pack 200. Specifically, the battery management unit of the integrated control module 110 communicates with the battery monitoring chip (CMU) through the second CAN communication line.

[0044] In some embodiments, the electronic drive control system further includes a third CAN communication line, for example... Figure 2 ④-CAN is the third CAN communication line. The vehicle control unit in the integrated control module 110 is connected to the central control system of the electric vehicle through the third communication line, thereby facilitating CAN communication between the integrated control module 110 and the central control system. Specifically, the central control system may include a central control chip (CCU) for managing and controlling the vehicle's intelligent systems, infotainment, etc., and the vehicle control unit of the integrated control module 110 is connected to the central control chip through the third communication line.

[0045] In some embodiments, the electronic drive control system further includes a fourth CAN communication line, for example... Figure 2 ②-CAN is the fourth CAN communication line. The vehicle control unit in the integrated control module 110 is connected to the DC charging port of the electric vehicle via the fourth CAN communication line. Figure 3 The DC charging socket is used to connect to an external DC charging device. The integrated control module 110 is connected to the DC charging socket via a fourth CAN communication line, facilitating communication between them.

[0046] like Figure 3 As shown, existing electric vehicles use a separate BMS chip ( Figure 3 ②-MCU) and VCU chip ( Figure 3 (③-MCU), the power component 130 also uses an independent control chip, for example Figure 2 The PWR component represents the inverter component, including the inverter and the inverter control chip (④-MCU). The DCDC component includes the DCDC converter and the DCDC converter control chip (⑥-MCU). Furthermore, the on-board charger uses a separate on-board charger control chip (⑤-MCU), while the battery monitoring chip of the battery management unit uses a single chip (①-MCU). However, in this application... Figure 3As shown, the functions of the BMS chip, the functions of the VCU chip, the functions of the inverter control chip, and the functions of the DCDC converter control chip are integrated in the integrated control module 110, and one chip can be used, which can reduce the use of at least 3 chips and is lower in cost.

[0047] As shown in Figure 3 , in the existing electric vehicle, due to the use of independent control chips, communication lines are needed between the battery monitoring chip (CMU) and the BMS chip, such as Figure 3 ①-CAN, communication lines are needed between the BMS chip and the VCU chip, such as Figure 3 ②-CAN, communication lines are needed between the VCU chip and the PWR component, such as Figure 3 ③-CAN, communication lines are needed between the VCU chip and the central control chip CCU, such as Figure 3 ④-CAN, communication lines are needed between the VCU chip and the on-board charger component (OBC), such as Figure 3 ⑤-CAN, communication lines are needed between the VCU chip and the DCDC component, such as Figure 3 ⑥-CAN, communication lines are needed between the VCU chip and the DC charging socket, such as Figure 3 ⑦-CAN. In the present application, the functions of the BMS chip, the functions of the VCU chip, the functions of the inverter control chip, and the functions of the DCDC converter control chip are integrated into the integrated control module 110, and Figure 2 the same communication function, such as Figure 2 shown, only communication lines (such as Figure 2 ①-CAN) between the battery monitoring chip and the integrated control module 110, communication lines (such as Figure 2 ②-CAN) between the integrated control module 110 and the DC charging socket, communication lines (such as Figure 2 ③-CAN) between the integrated control module 110 and the on-board charger component, and communication lines (such as ​ ④-CAN) between the integrated control module 110 and the central control chip CCU are needed, which can reduce at least 3 communication lines and the communication line is simpler.

[0048] The application also provides an electric vehicle comprising the electronic drive control system of any of the above embodiments.

[0049] The technical features described above can be combined in any way. Although not all possible combinations of these technical features are described, any combination of these technical features should be considered to be covered by the present description, as long as such a combination does not result in a contradiction.

[0050] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electronic drive control system characterized by comprising: The electronic driving control system comprises: a power assembly and an integrated control module integrating a battery management unit, a vehicle control unit and a control unit of the power assembly in one chip; the vehicle control unit is connected with the battery management unit and the control unit of the power assembly, the battery management unit is in communication connection with a battery assembly of an electric vehicle, the control unit of the power assembly is in electrical connection with the power assembly; and the power assembly is in electrical connection with a motor of the electric vehicle.

2. The electronic drive control system of claim 1, wherein, the power assembly comprises an inverter, and the control unit of the power assembly comprises an inverter control unit; the inverter control unit is in electrical connection with the inverter, and the inverter is connected to the motor of the electric vehicle.

3. The electronic drive control system of claim 2, wherein, the power assembly further comprises a DCDC converter, and the control unit of the power assembly comprises a DCDC converter control unit; the DCDC converter control unit is in electrical connection with the DCDC converter, and the DCDC converter is connected to a low-voltage assembly of the electric vehicle.

4. The electronic drive control system of claim 1, wherein, The electronic driving control system further comprises a vehicle-mounted charger assembly, and the vehicle-mounted charger assembly is in communication connection with the vehicle control unit.

5. The electronic drive control system of claim 4, wherein, The electronic driving control system further comprises a first CAN communication line, and the vehicle-mounted charger assembly is in communication connection with the vehicle control unit through the first CAN communication line.

6. The electronic drive control system of claim 1, wherein, The electronic driving control system further comprises a second CAN communication line, and the battery management unit is in communication connection with the battery assembly of the electric vehicle through the second CAN communication line.

7. The electronic drive control system of claim 1, wherein The electronic driving control system further comprises a third CAN communication line, and the vehicle control unit is connected to a central control system of the electric vehicle through the third communication line.

8. The electronic drive control system of claim 1, wherein, The electronic driving control system further comprises a fourth CAN communication line. The vehicle control unit is connected to a direct-current charging socket of the electric vehicle through the fourth CAN communication line.

9. The electronic drive control system of claim 1, wherein, The integrated control module is an MCU chip.

10. An electric vehicle characterized by comprising: The electronic driving control system according to any one of claims 1-9.

Images