Controller circuit board structure for mechano-electronic braking (EMB) system

Abstract

A controller circuit board structure for a mechano-electronic braking (EMB) system comprises a circuit board, and the circuit board is connected with a motor through an external motor conversion terminal. A sensor is arranged on the circuit board, and an isolation area is arranged on the periphery of the sensor; the circuit board is provided with motor input ports, the motor input ports are far away from the sensor, the motor input ports are arranged at intervals, and the motor conversion terminals are connected with the motor input ports; the circuit board is provided with a power supply connector, and the power supply input terminal is connected with the power supply connector. According to the controller circuit board structure used for the mechano-electronic braking EMB system, the circuit board and the motor are connected through the motor conversion terminal, the transmission distance of high-power signals in the circuit board is reduced, heat accumulation can be reduced, the influence on a sensor is reduced, the power circuit module and the logic signal module of the circuit board are separated, and the reliability of the controller circuit board structure is improved. Interference is avoided, and the reliability of the circuit board is improved.

Description

Technical Field

[0001] This utility model relates to the field of brake-by-wire system technology, specifically to a controller circuit board structure for an electromechanical braking (EMB) system. Background Technology

[0002] In the development of the automotive industry, with the continuous improvement of vehicle performance and safety requirements, EMB (Electromechanical Brake) systems, as an advanced braking technology, have gradually received widespread attention and application. However, this system faces many technical challenges in practical applications.

[0003] On the one hand, the space around the wheels of a car is extremely limited, which necessitates miniaturization of the electronic control components in that location. Under these conditions, the integration density of circuit boards must become increasingly higher in order to achieve the integration of multiple functions. However, due to their operating characteristics, brake controllers need to process high-power signals, which typically requires increasing the circuit board area to meet heat dissipation and electrical performance requirements, creating a contradiction with the limited space around the wheels.

[0004] On the other hand, due to the high integration of circuit boards and the coexistence of multiple signals, mutual interference between signals is unavoidable. In particular, high-power signals generate strong electromagnetic interference during transmission, which not only affects the accurate transmission and processing of other weak electrical signals, but may also lead to increased sensor measurement errors, and in severe cases, even cause system failures, greatly impacting product reliability.

[0005] Furthermore, traditional circuit board and motor connection methods have certain drawbacks. When high-power signals are transmitted over long distances within the circuit board, significant heat buildup occurs, which in turn affects the performance and lifespan of other components on the circuit board.

[0006] To address the aforementioned technical problems, this invention provides a controller circuit board structure for a mechatronic braking EMB system. By employing three external motor adapter terminals to connect the circuit board to the motor, the transmission distance of high-power signals within the circuit board can be effectively reduced, thereby minimizing heat accumulation and reducing the impact on sensors. Simultaneously, separating the power circuit module from the logic signal module of the circuit board avoids mutual interference to some extent, increasing the reliability of the circuit board. Utility Model Content

[0007] Purpose of the utility model: To overcome the above shortcomings, the purpose of this utility model is to provide a controller circuit board structure for a mechanical electronic braking EMB system. The circuit board is connected to the motor through a motor adapter terminal, reducing the transmission distance of high-power signals in the circuit board. The motor input ports are separately arranged in the circuit board, reducing heat accumulation and increasing the lifespan of the circuit board. An isolation area is set around the sensor to prevent other signals from entering, thus reducing interference. The power circuit module and logic signal module of the circuit board are separated to avoid interference, increasing the reliability of the circuit board and making it widely applicable.

[0008] Technical Solution: A controller circuit board structure for a mechatronic braking (EMB) system includes a circuit board connected to a motor via an external motor adapter terminal. The circuit board has a sensor surrounded by an isolation area. It also has a motor input port, spaced apart from the sensor, and connected to the motor adapter terminal. A power connector is also provided on the circuit board, and a power input terminal is connected to the power connector.

[0009] The circuit board and motor described in this invention are connected via an external motor adapter terminal, thereby reducing the transmission distance of high-power signals within the circuit board, reducing heat accumulation, and minimizing the impact on the sensor. An isolation area is provided around the sensor in the top layer structure of the circuit board to prevent other signals from entering, reducing interference; the motor input port is located far from the sensor and spaced further apart, reducing heat accumulation on the circuit board.

[0010] Furthermore, in the aforementioned controller circuit board structure for the electromechanical braking EMB system, a current sensor is provided on the circuit board; a power device is provided on the circuit board; a chip is provided on the circuit board, and a filter circuit is provided on one side.

[0011] A current sensor can be used to monitor current magnitude and help detect abnormal current conditions in the circuit. Power devices can be used to achieve power conversion and drive loads. Chips can be used for signal processing and data storage, and filtering circuits added to the chip can remove noise and stabilize signals.

[0012] Current sensors can be used to monitor current magnitude and help detect abnormal current conditions in circuits. Power devices can be used for power conversion and load driving. Filter circuits can remove noise and stabilize signals. Chips can be used for signal processing and data storage.

[0013] Furthermore, in the aforementioned controller circuit board structure for the electromechanical braking EMB system, the circuit board is divided into two areas: the right side is the power area and the left side is the logic signal area.

[0014] The power circuit module and logic signal module of the circuit board are separated to avoid interference and increase the reliability of the circuit board.

[0015] Furthermore, in the aforementioned controller circuit board structure for the electromechanical braking EMB system, the motor input port, power connector, current sensor, and power devices are located in the power area; the sensor and isolation area, filter circuit, and chip are located in the logic signal area.

[0016] The power region typically handles high-voltage, high-current signals, generating significant electromagnetic interference during operation. The logic signal region, on the other hand, primarily handles low-voltage, low-current digital signals and is more sensitive to interference. This invention designates the right side of the circuit board as the power region and the left side as the logic signal region. This separate layout reduces the impact of electromagnetic interference from the power region on the logic signal region, ensuring accurate transmission and processing of logic signals.

[0017] Furthermore, in the aforementioned controller circuit board structure for the electromechanical braking EMB system, the circuit board is connected to the motor via three external motor adapter terminals.

[0018] Furthermore, in the controller circuit board structure for the above-mentioned electromechanical braking EMB system, the number of motor input ports is 3.

[0019] The three-phase current in the circuit board is transmitted to the motor through three external motor adapter terminals.

[0020] Furthermore, in the controller circuit board structure for the above-mentioned electromechanical braking EMB system, the number of power connectors is 4.

[0021] Taking into account different numbers of input power channels, the structure is designed to accommodate both single-channel and dual-power supply connections. When the electromechanical braking EMB system requires only one power supply, two power connectors can be selected as ports. When the electromechanical braking EMB system requires two power supplies, all four power connector ports should be connected to power.

[0022] The circuit board's frame structure and electrical integration differentiate between the front and rear wheel EMBs, allowing both to be installed and saving on management costs.

[0023] Furthermore, in the aforementioned controller circuit board structure for the electromechanical braking EMB system, the circuit board is connected to the motor adapter terminal by soldering, and the motor adapter terminal is connected to the motor by resistance welding.

[0024] The beneficial effects of this utility model are as follows:

[0025] (1) The controller circuit board structure for the electromechanical braking EMB system described in this utility model is such that the circuit board and the motor are connected through motor adapter terminals, which can reduce the transmission area of ​​high-power signals in the circuit board. At the same time, the motor input port is far away from the sensor and the distance between them is increased, which increases the distance between the motor adapter terminals in the circuit board, which can separate high-power components, reduce heat accumulation, and increase the life of the circuit board. An isolation area is set around the sensor to prevent other signals from entering and avoid interference with the sensor signal.

[0026] (2) The controller circuit board structure for the electromechanical braking EMB system described in this utility model has a reasonable overall layout. The power part and the logic part in the circuit board are separated in terms of spatial structure to avoid mutual interference of signals. The power connector can be adapted to a single power connector or a dual power connector through reasonable layout. The circuit board can be used for both front and rear axles, which can save management costs. Attached Figure Description

[0027] Figure 1 This is the top layer structure of the circuit board for the controller circuit board structure of the electromechanical braking EMB system described in this utility model;

[0028] Figure 2 This is the overall circuit board structure of the controller circuit board structure for the electromechanical braking EMB system described in this utility model;

[0029] Figure 3 This is a diagram showing the connection between the motor adapter terminal and the circuit board of the controller circuit board structure for the electromechanical braking EMB system described in this utility model.

[0030] In the diagram: Circuit board 1, power area 101, logic signal area 102, sensor 11, isolation area 12, motor input port 13, power connector 14, current sensor 15, power device 16, chip 17, filter circuit 18, motor adapter terminal 2. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 , 2 Examples 1 and 2 further illustrate this utility model.

[0032] Example 1

[0033] like Figure 3 As shown, the controller circuit board structure for the electromechanical braking EMB system of this utility model includes a circuit board 1. The circuit board 1 obtains power input by connecting to an external power supply terminal and controls the rotation of the brushless motor through hardware and software control.

[0034] Furthermore, Figure 1 For the top layer structure of circuit board 1, such as Figure 1 As shown, an isolation area 12 surrounds the sensor 11 on circuit board 1 to prevent other signals from entering. The motor input ports 13 on circuit board 1 are located far from the sensor 11, and the spacing between the motor input ports 13 is increased to reduce heat accumulation on circuit board 1. Circuit board 1 has four power connectors 14. When the electromechanical braking EMB system only requires one power supply, two of the power connector 14 ports can be selected. When the system requires two power supplies, all four power connector 14 ports are connected to the power source. The board frame structure and electrical integration of circuit board 1 differentiate between front and rear wheel EMB systems, allowing the EMB circuit boards for the front and rear axles to be shared.

[0035] Compared with existing technologies, the controller structure for the electromechanical braking EMB system described in this embodiment connects the circuit board 1 to the motor via an external motor adapter terminal 2. This reduces the routing distance of high-current signals on the circuit board 1, keeps them away from the sensor 11, reduces electromagnetic interference, and also reduces heat accumulation. Considering different numbers of input power channels, the structure is designed to accommodate both single-channel and dual-power supply access. Furthermore, the EMB circuit boards for the front and rear axles can be shared, saving management costs.

[0036] Example 2

[0037] Based on the structural foundation of Embodiment 1 and above, such as Figure 1 , 2 As shown in Figure 3.

[0038] like Figure 1 As shown, the controller circuit board structure for the electromechanical braking EMB system of this utility model includes a current sensor 15 on the circuit board 1, which can monitor the current magnitude and help detect abnormal current conditions in the circuit. A power device 16 is also installed on the circuit board 1 to achieve power conversion and drive the load. A chip 17 is installed on the circuit board 1 for signal processing and data storage, and a filter circuit 18 is provided on one side. Adding the filter circuit 18 at the chip 17 terminal removes noise and stabilizes the signal.

[0039] Furthermore, such as Figure 2As shown, circuit board 1 is divided into two areas: the right side is the power area 101, and the left side is the logic signal area 102. The motor input port 13, power connector 14, current sensor 15, and power device 16 are located in the power area 101, while the sensor 11, isolation area 12, filter circuit 18, and chip 17 are located in the logic signal area 102. This separate layout reduces the impact of electromagnetic interference generated in the power area 101 on the logic signal area 102, ensuring accurate transmission and processing of logic signals.

[0040] Furthermore, such as Figure 3 As shown, the circuit board 1 is connected to the motor adapter terminal 2 by soldering, and the motor adapter terminal 2 is connected to the motor by resistance welding. The three-phase current in the circuit board 1 is transmitted to the motor through the three external motor adapter terminals 2.

[0041] In summary, this utility model provides a controller circuit board structure for a mechatronic braking EMB system, which has the following advantages:

[0042] 1. The circuit board 1 is connected to the motor via the motor adapter terminal 2, which keeps the high-power area away from the sensor 11, preventing high current interference with the sensor signal and affecting the normal operation of the entire system. The motor input port 13 is separately arranged in the circuit board, separating the motor adapter terminal 2, reducing heat accumulation in the heat-generating components, and increasing the lifespan of the circuit board 1. An isolation area is set around the sensor 11, enabling the sensor 11 to operate stably without being affected by external high current interference.

[0043] 2. The power and logic sections of circuit board 1 are spatially separated, preventing signal interference from high power sources. The power connector 14, through its optimized layout, can accommodate single-channel power connectors (2 terminals) or dual-channel power connectors (4 terminals) for circuit boards with different power requirements, saving costs. This bidirectional structural and electrical adaptation allows both front and rear EMB circuit boards to share a single circuit board, further reducing costs. The addition of the signal acquisition and filtering circuit 18 enhances the signal quality acquired by the chip 17.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A controller circuit board structure for a mechatronic braking EMB system, comprising a circuit board (1), characterized in that: The circuit board (1) is connected to the motor via an external motor adapter terminal (2); wherein, a sensor (11) is provided on the circuit board (1), and an isolation area (12) is provided around the sensor (11); a motor input port (13) is provided on the circuit board (1), the motor input port (13) is far away from the sensor (11) and the motor input ports (13) are spaced apart from each other, and the motor adapter terminal (2) is connected to the motor input port (13); a power connector (14) is provided on the circuit board (1), and a power input terminal is connected to the power connector (14).

2. The controller circuit board structure for a mechatronic braking EMB system according to claim 1, characterized in that, A current sensor (15) is provided on the circuit board (1); a power device (16) is provided on the circuit board (1); a chip (17) is provided on the circuit board (1), and a filter circuit (18) is provided on one side.

3. The controller circuit board structure for a mechatronic braking EMB system according to claim 2, characterized in that, The circuit board (1) is divided into two areas: the right side is the power area (101) and the left side is the logic signal area (102).

4. The controller circuit board structure for a mechatronic braking EMB system according to claim 3, characterized in that, The motor input port (13), power connector (14), current sensor (15), and power device (16) are located in the power area (101); the sensor (11), isolation area (12), filter circuit (18), and chip (17) are located in the logic signal area (102).

5. The controller circuit board structure for a mechatronic braking EMB system according to claim 1, characterized in that, The circuit board (1) is connected to the motor through three external motor adapter terminals (2).

6. The controller circuit board structure for a mechatronic braking EMB system according to claim 5, characterized in that, The number of motor input ports (13) is 3.

7. The controller circuit board structure for a mechatronic braking EMB system according to claim 1, characterized in that, The number of power connectors (14) is 4.

8. The controller circuit board structure for a mechatronic braking EMB system according to claim 1, characterized in that, The circuit board (1) is connected to the motor adapter terminal (2) by soldering, and the motor adapter terminal (2) is connected to the motor by resistance welding.

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