Oil-cooled motor controller integration device and new energy automobile

Abstract

The utility model discloses an oil-cooled motor controller integrated device and a new energy automobile, which have the advantages of high integration, high reliability, optimized energy management, quick response and the like, and relates to the technical field of automobile control. The oil-cooled motor controller integrated device comprises a power supply module used for supplying low-voltage direct current to a main control chip; the main control chip is used for controlling and coordinating the work of the microcontroller, the integrated power supply module, the oil pump control module and the high-voltage battery pack; the microcontroller is used for controlling and coordinating the work of the integrated power supply module, the oil pump control module and the motor; the integrated power supply module is used for converting the high-voltage direct current into low-voltage direct current, outputting the low-voltage direct current and supplying the low-voltage direct current to the oil pump control module; the oil pump control module is used for controlling an oil pump to work; the high-voltage battery pack is used for supplying high-voltage direct current to the microcontroller and the integrated power supply module; and the power supply module, the integrated power supply module, the oil pump control module and the high-voltage battery pack can feed back data to the main control chip and / or the microcontroller.

Description

Technical Field

[0001] This utility model relates to the field of automotive control technology, and in particular to an integrated device for an oil-cooled motor controller and a new energy vehicle. Background Technology

[0002] In vehicle systems, traditional motor controllers are often configured with oil pumps, power supplies and electric drive modules independently, which has many drawbacks: (1) The dispersed layout makes the system bulky and the wiring complex, increasing the number of fault points and energy loss; (2) The independent control of the oil pump is difficult to coordinate with the motor operating conditions, affecting the oil cooling efficiency; (3) The power supply adaptability and electric drive response speed are limited under complex operating conditions, and the overall integration is low, which cannot meet the urgent needs of modern smart cars for miniaturized, intelligent and efficient motor control.

[0003] Therefore, an integrated solution needs to be designed to deeply integrate power supply, oil pump control, and other components to overcome existing shortcomings. Utility Model Content

[0004] In view of the above-mentioned shortcomings, this utility model provides an integrated device for an oil-cooled motor controller and a new energy vehicle, which has the advantages of high integration, high reliability, optimized energy management and fast response.

[0005] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0006] An integrated device for an oil-cooled motor controller includes:

[0007] The power supply module is used to supply low-voltage DC power to the main control chip and to feed data back to the main control chip and / or microcontroller.

[0008] The main control chip is used to control and coordinate the operation of the microcontroller, integrated power module, oil pump control module, and high-voltage battery pack.

[0009] The microcontroller is used to control and coordinate the operation of the integrated power module, oil pump control module, and motor.

[0010] An integrated power module is used to convert high-voltage DC power into low-voltage DC power and output it, as well as to supply low-voltage DC power to the oil pump control module, while feeding back data to the main control chip and / or microcontroller.

[0011] The oil pump control module is used to control the operation of the oil pump and to feed back data to the main control chip and / or microcontroller;

[0012] High-voltage battery packs are used to supply high-voltage DC power to microcontrollers and integrated power modules, and to feed back data to the main control chip and / or microcontroller.

[0013] According to one aspect of this utility model, it also includes:

[0014] The communication module is used for data interaction between the main control chip and other vehicle systems.

[0015] According to one aspect of this utility model, the high-voltage battery pack includes:

[0016] The slow charging module is used to receive external AC power and charge the high-voltage DC output module;

[0017] High-voltage DC output module, used to output high-voltage DC power to microcontrollers and integrated power modules;

[0018] Battery sensor array, used to feed back data to the main control chip and / or microcontroller.

[0019] According to one aspect of this utility model, the oil pump control module includes:

[0020] Oil pump drive circuit, used to control the speed and flow rate of the oil pump;

[0021] The oil pump sensor group is used to feed back data to the main control chip and / or microcontroller.

[0022] According to one aspect of this utility model, the oil pump control module further includes:

[0023] The communication unit is used to communicate with the vehicle's electronic control unit (ECU) and to coordinate the operation of the oil pump by receiving vehicle operating parameter information from the ECU.

[0024] According to one aspect of the present invention, the oil pump drive circuit controls the input voltage of the oil pump motor by adjusting the duty cycle of the PWM signal, thereby achieving precise control of the oil pump speed.

[0025] According to one aspect of this utility model, the power supply module includes:

[0026] The storage battery is used to supply low-voltage DC power to the main control chip.

[0027] A voltage regulator is used to stabilize the low-voltage DC power supplied by the battery to the main control chip.

[0028] A power supply sensor group is used to feed back data to the main control chip and / or microcontroller.

[0029] According to one aspect of this utility model, the integrated power module converts the output low-voltage DC power to 5V or 12V.

[0030] According to one aspect of this utility model, the integrated power module has built-in overvoltage, overcurrent and short-circuit protection circuits.

[0031] A new energy vehicle includes the oil-cooled motor controller integrated device described in any one of the above.

[0032] Advantages of this invention: This integrated oil-cooled motor controller includes a power supply module, a main control chip, a microcontroller, an integrated power module, an oil pump control module, and a high-voltage battery pack. The integrated power module and oil pump control module of this invention represent a deep integration from the circuit level to the control logic. The output of the integrated power module can directly provide suitable power to the oil pump control module, and both work collaboratively under the unified scheduling of the main control chip, achieving a higher level of integration. This invention has a high overall integration level, meeting the urgent needs of modern intelligent vehicles for miniaturized, intelligent, and efficient motor control. This invention has advantages such as high integration, high reliability, optimized energy management, and rapid response. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram illustrating the principle of this utility model. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inner", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 present utility model.

[0036] Example 1

[0037] like Figure 1As shown, an integrated oil-cooled motor controller is used in a vehicle power system to achieve a higher level of integration and meet the urgent needs of modern intelligent vehicles for miniaturized, intelligent, and efficient motor control. This integrated oil-cooled motor controller includes a power supply module, a main control chip, a microcontroller (MCU), an integrated power module, an oil pump control module (EOP), and a high-voltage battery pack.

[0038] In this embodiment, the power supply module is used to supply low-voltage DC power to the main control chip and to feed back data to the main control chip and / or the microcontroller. The power supply module includes a battery, a voltage regulator (LDO), and a power supply sensor group. The battery is used to supply low-voltage DC power to the main control chip, the voltage regulator is used to stabilize the low-voltage DC power supplied by the battery to the main control chip, and the power supply sensor group is used to feed back data to the main control chip and / or the microcontroller. In practice, lines KL30 and KL31 are used to connect the battery to the LDO, and then the LDO is connected to the main control chip.

[0039] In this embodiment, the main control chip is used to control and coordinate the operation of the microcontroller, integrated power module, oil pump control module, and high-voltage battery pack. As the core of the entire motor controller integrated power module and oil pump control module, the main control chip is responsible for coordinating the operation of the integrated power module and oil pump control module. Based on various operating conditions of the vehicle, such as accelerator pedal position, brake signal, and battery level, it generates corresponding control commands and sends them to the two modules.

[0040] In this embodiment, the microcontroller (MCU) is used to control and coordinate the operation of the integrated power supply module, the oil pump control module, and the motor. In practice, a high-performance microcontroller (MCU) is used to run a dedicated control algorithm program. On the one hand, it schedules the operation of the integrated power supply module according to the input control commands, manages voltage conversion, and monitors the power supply status. On the other hand, it calculates the optimal operating parameters of the oil pump according to the working conditions and outputs the corresponding drive signal to the oil pump control module to achieve intelligent and precise control.

[0041] In this embodiment, the integrated power module is used to convert high-voltage DC power into low-voltage DC power and output it, as well as to supply low-voltage DC power to the oil pump control module, while simultaneously feeding back data to the main control chip and / or microcontroller. The integrated power module employs a high-efficiency DC-DC converter (DCDC) circuit to convert the high-voltage battery pack voltage of the new energy vehicle into different low-voltage levels required by the various electronic components inside the motor controller, such as 5V and 12V. This conversion circuit has a wide input voltage range adaptability and can stably output power even when the battery voltage fluctuates significantly. The integrated power module is connected to the main control chip of the motor controller, receiving control signals from the main control chip to achieve intelligent adjustment of the power output; for example, dynamically adjusting the output voltage according to the motor's operating status to reduce power consumption. The integrated power module has built-in overvoltage, overcurrent, and short-circuit protection circuits. When an abnormal output voltage or current is detected, it quickly cuts off the power output to protect the internal components of the motor controller from damage; the protection circuit has a fast response and self-recovery function, automatically restoring normal power supply after the fault is cleared. During implementation, connect the DC-DC converter to other components or modules that require low-voltage DC power (LV in the attached diagram represents low-voltage output), such as connecting the DC-DC converter to the EOP.

[0042] In this embodiment, the oil pump control module (EOP) is used to control the operation of the oil pump and feed back data to the main control chip and / or microcontroller, such as oil temperature and oil pump speed. The oil pump control module includes an oil pump drive circuit, an oil pump sensor group, and a communication unit. The oil pump drive circuit controls the oil pump's speed and flow rate, and can precisely control these parameters according to the instructions from the motor controller. The oil pump drive circuit uses pulse width modulation (PWM) technology, adjusting the duty cycle of the PWM signal to control the input voltage of the oil pump motor, thereby achieving precise control of the oil pump speed. The oil pump sensor group feeds back data to the main control chip and / or microcontroller. In practice, oil pump status monitoring sensors, such as pressure sensors and flow sensors, are connected to the oil pump. These sensors monitor the oil pump's operating status in real time and feed the data back to the main control chip of the motor controller. The main control chip performs closed-loop control of the oil pump control module based on the feedback data, ensuring that the oil pump always operates in optimal condition to meet the motor's lubrication and cooling requirements. The communication unit is used to communicate with the vehicle's electronic control unit (ECU). By receiving vehicle operating parameter information from the ECU, such as vehicle speed and motor load, it is easier to coordinate and control the operation of the oil pump. For example, when the vehicle is traveling at high speed and the motor load is light, the oil pump speed can be appropriately reduced to reduce energy consumption.

[0043] In this embodiment, the high-voltage battery pack is used to supply high-voltage DC power to the microcontroller and integrated power module, and to feed data back to the main control chip and / or microcontroller. The high-voltage battery pack includes a slow-charging module (OBC), a high-voltage DC output module (HVDC Output), and a battery sensor group. The slow-charging module receives external AC power (AC Input) and charges the high-voltage DC output module. The high-voltage DC output module outputs high-voltage DC power to the microcontroller and integrated power module. The battery sensor group feeds data back to the main control chip and / or microcontroller. In practice, AC power from the external charging station is output to the OBC, which then transmits it to the high-voltage DC output module (HVDC Output). The positive and negative terminals (HV+, HV-) of the high-voltage battery pack are connected to the MCU and DC-DC converter.

[0044] Explanation of the integration principle of this utility model:

[0045] 1. Input section:

[0046] High-voltage DC input: The high-voltage DC power input from the high-voltage battery pack is the "energy source" of the entire integrated system, and also the input source for the MCU and DC-DC converter, so integration is considered.

[0047] Low-voltage DC input: The low-voltage DC power input from the battery is the "control source" of the entire integrated system and is considered for integration.

[0048] 2. Control section:

[0049] Main control chip: As the core of the entire motor controller integrated power supply and oil pump control device, it is responsible for coordinating the work of the integrated power supply module and the oil pump control module.

[0050] High-performance microcontroller (MCU): Runs a dedicated control algorithm program. On the one hand, it schedules the power module to work according to the input control instructions, manages voltage conversion and monitors the power status. On the other hand, it calculates the optimal operating parameters of the oil pump according to the working conditions and outputs the corresponding drive signal to the oil pump control module to achieve intelligent and precise control.

[0051] 3. Feedback and Monitoring Section:

[0052] Voltage and current sensors are installed in the electronic control and power supply modules to monitor the input and output electrical parameters; pressure and speed sensors are installed at the oil pump end to collect working data in real time and feed it back to the MCU to form a closed-loop control, so that the system can correct the control output in a timely manner according to the actual working condition deviation, ensuring the reliable and long-term operation of the motor controller, motor, power supply and the entire transmission and lubrication system.

[0053] The beneficial effects of this embodiment are as follows:

[0054] 1. High integration: The power supply and oil pump control functions are integrated into the motor controller, reducing external components and wiring, significantly reducing the system's space occupation, and facilitating the compact design of the power system of new energy vehicles;

[0055] 2. Improved reliability: The simplified system structure and integrated design reduce connection points and failure points, while the built-in protection circuits and closed-loop control strategies improve the reliability and stability of the system and reduce maintenance costs.

[0056] 3. Optimize energy management: Through the intelligent coordinated control of the integrated power module and oil pump control module by the main control chip, the power output and oil pump operation can be dynamically adjusted according to the vehicle's operating conditions, so as to achieve efficient use of energy and extend the driving range of new energy vehicles.

[0057] 4. Fast Response: The integrated design enables the oil pump control to respond to the motor controller's commands more quickly, improving the overall response speed of the power system and enhancing the vehicle's driving performance.

[0058] Example 2

[0059] The difference between this embodiment and Embodiment 1 is that this device also includes a communication module for data interaction between the main control chip and other vehicle systems. Specifically, this integrated oil-cooled motor controller device includes a power supply module, a main control chip, a communication module, a microcontroller (MCU), an integrated power module, an oil pump control module (EOP), and a high-voltage battery pack.

[0060] In this embodiment, the collaboration between the main control chip and other components:

[0061] The main control chip, as the core of the entire motor controller integrated power module and oil pump control module, is responsible for coordinating the work of the integrated power module and oil pump control module. Based on various operating conditions of the vehicle, such as accelerator pedal position, brake signal, battery power, etc., it generates corresponding control commands and sends them to the two modules.

[0062] The main control chip connects to the vehicle's communication bus (such as the CAN bus) to enable data interaction with other vehicle systems; for example, it sends the operating status information of the motor controller to the instrument panel display system, while receiving control commands and status information from other systems to perform global powertrain optimization control.

[0063] Explanation of the integration principle of this utility model:

[0064] 1. Input section:

[0065] High-voltage DC input: The high-voltage DC power input from the high-voltage battery pack is the "energy source" of the entire integrated system, and also the input source for the MCU and DC-DC converter, so integration is considered.

[0066] Low-voltage DC input: The low-voltage DC power input from the battery is the "control source" of the entire integrated system and is considered for integration.

[0067] CAN communication input: The CAN communication input from the vehicle is the "communication source" of the entire integrated system and should be considered for integration.

[0068] 2. Control section:

[0069] Main control chip: As the core of the entire motor controller integrated power supply and oil pump control device, it is responsible for coordinating the work of the integrated power supply module and the oil pump control module.

[0070] High-performance microcontroller (MCU): Runs a dedicated control algorithm program. On the one hand, it schedules the power module to work according to the input control instructions, manages voltage conversion and monitors the power status. On the other hand, it calculates the optimal operating parameters of the oil pump according to the working conditions and outputs the corresponding drive signal to the oil pump control module to achieve intelligent and precise control.

[0071] 3. Feedback and Monitoring Section:

[0072] Voltage and current sensors are installed in the electronic control and power supply modules to monitor the input and output electrical parameters; pressure and speed sensors are installed at the oil pump end to collect working data in real time and feed it back to the MCU to form a closed-loop control, so that the system can correct the control output in a timely manner according to the actual working condition deviation, ensuring the reliable and long-term operation of the motor controller, motor, power supply and the entire transmission and lubrication system.

[0073] The beneficial effects of this embodiment are as follows:

[0074] 1. High integration: The power supply and oil pump control functions are integrated into the motor controller, reducing external components and wiring, significantly reducing the system's space occupation, and facilitating the compact design of the power system of new energy vehicles;

[0075] 2. Improved reliability: The simplified system structure and integrated design reduce connection points and failure points, while the built-in protection circuits and closed-loop control strategies improve the reliability and stability of the system and reduce maintenance costs.

[0076] 3. Optimize energy management: Through the intelligent coordinated control of the integrated power module and oil pump control module by the main control chip, the power output and oil pump operation can be dynamically adjusted according to the vehicle's operating conditions, so as to achieve efficient use of energy and extend the driving range of new energy vehicles.

[0077] 4. Fast Response: The integrated design enables the oil pump control to respond to the motor controller's commands more quickly, improving the overall response speed of the power system and enhancing the vehicle's driving performance.

[0078] Example 3

[0079] This embodiment provides a new energy vehicle, including the oil-cooled motor controller integrated device of Embodiment 1 or Embodiment 2 above.

[0080] In this embodiment, the motor controller, OBC, DC-DC converter, EOP, and other components required for a vehicle are integrated together, reducing the size, simplifying wiring, reducing failure points and energy loss, and enhancing system reliability. Optimizations have been made in aspects such as component cost, space layout, and power consumption control, improving the overall performance of the new energy vehicle motor controller system and enhancing the safety of driving new energy vehicles.

[0081] The beneficial effects of this embodiment are: reduced cost, reduced failure rate, improved overall performance of the new energy vehicle motor controller system, and enhanced driving safety of new energy vehicles.

[0082] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations, combinations, or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An integrated device for an oil-cooled motor controller, characterized in that, include: The power supply module is used to supply low-voltage DC power to the main control chip and to feed data back to the main control chip and / or microcontroller. The main control chip is used to control and coordinate the operation of the microcontroller, integrated power module, oil pump control module, and high-voltage battery pack. The microcontroller is used to control and coordinate the operation of the integrated power module, oil pump control module, and motor. An integrated power module is used to convert high-voltage DC power into low-voltage DC power and output it, as well as to supply low-voltage DC power to the oil pump control module, while feeding back data to the main control chip and / or microcontroller. The oil pump control module is used to control the operation of the oil pump and to feed back data to the main control chip and / or microcontroller; High-voltage battery packs are used to supply high-voltage DC power to microcontrollers and integrated power modules, and to feed back data to the main control chip and / or microcontroller.

2. The integrated device for an oil-cooled motor controller according to claim 1, characterized in that, Also includes: The communication module is used for data interaction between the main control chip and the vehicle system.

3. The integrated device for an oil-cooled motor controller according to claim 2, characterized in that, The high-voltage battery pack includes: The slow charging module is used to receive external AC power and charge the high-voltage DC output module; High-voltage DC output module, used to output high-voltage DC power to microcontrollers and integrated power modules; Battery sensor array, used to feed back data to the main control chip and / or microcontroller.

4. The integrated device for an oil-cooled motor controller according to claim 2, characterized in that, The oil pump control module includes: Oil pump drive circuit, used to control the speed and flow rate of the oil pump; The oil pump sensor group is used to feed back data to the main control chip and / or microcontroller.

5. The integrated device for an oil-cooled motor controller according to claim 4, characterized in that, The oil pump control module also includes: The communication unit is used to communicate with the vehicle's electronic control unit (ECU) and to coordinate the operation of the oil pump by receiving vehicle operating parameter information from the ECU.

6. The integrated device for an oil-cooled motor controller according to claim 4, characterized in that, The oil pump drive circuit controls the input voltage of the oil pump motor by adjusting the duty cycle of the PWM signal, thereby achieving precise control of the oil pump speed.

7. The integrated device for an oil-cooled motor controller according to claim 1, characterized in that, The power supply module includes: The storage battery is used to supply low-voltage DC power to the main control chip. A voltage regulator is used to stabilize the low-voltage DC power supplied by the battery to the main control chip. A power supply sensor group is used to feed back data to the main control chip and / or microcontroller.

8. The integrated device for an oil-cooled motor controller according to claim 1, characterized in that, The integrated power module converts the output low-voltage DC power to 5V or 12V.

9. The integrated device for an oil-cooled motor controller according to claim 8, characterized in that, The integrated power module has built-in overvoltage, overcurrent and short-circuit protection circuits.

10. A new energy vehicle, characterized in that, The integrated device for an oil-cooled motor controller as described in any one of claims 1 to 9.

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