Automatic control device for handbrake

Abstract

To provide an automatic hand brake control device which can realize automatic application and release of a hand brake and improve convenience and safety.SOLUTION: An automatic hand brake control device comprises a vehicle signal detection module, a MCU module, an application control module and a release control module. A power module and the vehicle signal detection module are connected with the MCU module, and an output end of the MCU module is connected with the application control module and the release control module. The vehicle signal detection module is used for detecting a vehicle starting signal and / or a vehicle shift position signal, and the application control module and the release control module are used for being connected between a vehicle body control unit and an electric parking brake switch / automatic brake holding switch in series to achieve hand brake applying control.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to the technical field of automobile parts and accessories, and in particular to an automatic control device for handbrake. [Background technology]

[0002] An electronic handbrake, which is an electronic parking brake system, is a method of realizing parking brake by electronic control method by integrating temporary braking during driving and long-term braking after parking. The system replaces conventional control members such as parking brake lever, mechanical lever, and wire with an electric parking brake switch and motor assembly, thereby saving space in the car, simplifying and labor-saving, and easing the operation of drivers, especially female drivers. Current electronic handbrakes must be applied manually by the driver, that is, after parking, the driver puts the shift position in P position and then presses the electric parking brake switch to apply the handbrake. However, the operation method of such electronic handbrakes is basically the same as that of conventional mechanical handbrakes, and there is a problem that the driver forgets to apply the handbrake, as with conventional mechanical handbrakes, and the car suddenly starts to move, leading to unexpected accidents and serious injuries. In particular, people in modern society are more likely to forget to press the electric parking brake switch when parking when they are under a lot of stress in their lives. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide an automatic handbrake control device that can realize automatic application and release of the handbrake and improve the convenience and safety of an electronic handbrake. [Means for solving the problem]

[0004] The automatic handbrake control device provided by the present invention comprises a vehicle signal detection module, an MCU module, and an operation control module, the power supply module and the vehicle signal detection module are connected to the MCU module, the output side of the MCU module is connected to the operation control module, the vehicle signal detection module is used to detect a vehicle start signal and / or a vehicle shift position signal, and the operation control module is used to directly connect between a vehicle control unit and an electric parking brake switch / auto brake hold switch to realize control of handbrake operation.

[0005] Furthermore, in a preferred embodiment, a release control module is provided on the output side of the MCU module, and the release control module is used to directly connect between the vehicle control unit and the electric parking brake switch / auto brake hold switch to realize the control of handbrake release.

[0006] Furthermore, in another preferred embodiment, an automatic parking control module is further provided on the output side of the MCU module, and the output side of the automatic parking control module is electrically connected to an electric parking brake switch / auto brake hold switch.

[0007] Furthermore, in another preferred embodiment, an automatic parking control module and a release control module are further provided on the output side of the MCU module, the output side of the automatic parking control module is electrically connected to an electric parking brake switch / auto brake hold switch, and the release control module is used to directly connect between the vehicle control unit and the electric parking brake switch / auto brake hold switch to realize handbrake release control.

[0008] Preferably, the activation control module and the release control module both include a relay or an IC.

[0009] When the present invention is installed, the vehicle signal detection module is connected to the signal line of the vehicle, and then the operation control module and the release control module are directly connected between the vehicle body control unit and the electric parking brake switch / auto brake hold switch, and then the MCU module is connected to the vehicle power supply through the power module or directly. The working principle of the present invention is that the vehicle signal detection module detects the conditions suitable for releasing the handbrake, for example, when the vehicle signal detection module detects the vehicle start signal and detects that the shift position is in R, N, D position (non-P position), the MCU module controls the release control module to operate and controls the electronic handbrake to release, that is, to automatically release the electronic handbrake. According to the circuit type of the car handbrake system, the automatic release of the electronic handbrake can be realized independently by the release control module, or can be realized in cooperation with the internal circuit of the electric parking brake switch / auto brake hold switch; the vehicle signal detection module detects the handbrake operation. When the MCU module detects a condition suitable for operation (for example, the handbrake activation condition of some vehicle models is that the vehicle signal detection module detects that the vehicle is starting and the shift position is in P position, and the handbrake activation condition of some vehicle models is that the handbrake is automatically activated when the vehicle engine is turned off), the MCU module controls the operation control module to operate and controls and activates the electronic handbrake, i.e., automatically applies the electronic handbrake; according to the circuit type of the car's handbrake system, the automatic application of the electronic handbrake can be realized independently by the operation control module, or can be realized in cooperation with the internal circuit of the electric parking brake switch / auto brake hold switch.After using the present invention, when the vehicle is started and the shift position is put into a non-P position, the automatic handbrake control device automatically releases the handbrake, and the driver can drive directly without manually controlling the operation of releasing the handbrake. When parking, when the shift position is put into the P position or the vehicle engine is turned off, the automatic handbrake control device automatically activates the handbrake, i.e., automatically applies the handbrake, and the driver can directly turn off the engine and get off the car without manually controlling the operation of applying the handbrake. This method of automatically activating and releasing the handbrake can avoid the situation where the driver forgets to press the electronic handbrake button, and improve the convenience and safety of the electronic handbrake. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic configuration diagram according to a first embodiment of the present invention. [Diagram 2] FIG. 11 is a schematic configuration diagram according to a second embodiment of the present invention. [Diagram 3] FIG. 11 is a schematic configuration diagram according to a third embodiment of the present invention. [Figure 4] FIG. 1 is a diagram illustrating the principle of a conventional handbrake system. [Diagram 5] This is a diagram showing the principle of an existing handbrake system that is equipped with both an electric parking brake switch and an automatic brake hold switch. [Figure 6] FIG. 1 is a schematic diagram of a circuit connection mode 1 of the present invention. [Figure 7] FIG. 2 is a schematic diagram of a circuit connection mode 2 of the present invention. [Figure 8] FIG. 1 is a schematic diagram of a circuit connection mode 3 of the present invention. [Figure 9] FIG. 11 is a schematic diagram of a fourth circuit connection embodiment of the present invention. [Figure 10] FIG. 11 is a schematic diagram of a circuit connection embodiment 5 of the present invention. [Figure 11] FIG. 6 is a schematic diagram of a circuit connection mode 6 of the present invention. [Figure 12] FIG. 11 is a schematic diagram of a seventh circuit connection embodiment of the present invention. [Figure 13] FIG. 11 is a schematic diagram of an eighth circuit connection embodiment of the present invention. [Figure 14] FIG. 13 is a schematic diagram of a ninth circuit connection embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, specific embodiments of the present invention will be described in detail through examples with reference to the drawings, such as the shape and structure of each component involved, the relative positions and connection relationships between each part, the function and operation principle of each part, etc.

[0012] 1, 2 and 3, the handbrake automatic control device of the present invention includes a vehicle signal detection module, an MCU module and an operation control module, the power supply module and the vehicle signal detection module are connected to the MCU module, the output side of the MCU module is connected to the operation control module, the vehicle signal detection module is used to detect a vehicle start signal and / or a vehicle shift position signal, and the operation control module is used to directly connect between a vehicle body control unit and an electric parking brake switch / auto brake hold switch to realize the control of the handbrake operation. Here, according to the switch type of the electronic handbrake of the car, if the car only has an electric parking brake switch, the operation control module of the present invention is connected to the electric parking brake switch, and if the car has an automatic start-stop function, that is, has an electric parking brake switch and an auto brake hold switch at the same time, the operation control module of the present invention may be connected to the electric parking brake switch and the auto brake hold switch, so that the present invention is represented by the electric parking brake switch / auto brake hold switch. The MCU module, which is a microcontrol unit, can select a commonly used single-chip microcomputer. The various signal lines of the vehicle can be voltage signal lines, can be CAN bus signal lines, and can even be wireless signals. If the switch signal of the vehicle uses wireless signals, the vehicle signal detection module only needs to be equipped with wireless receivers and wireless transmitters with mature technology. The power supply of the MCU module of the present invention can be directly connected to the vehicle power supply or can be connected to the vehicle power supply via an external power supply module.

[0013] The present invention can further include a control part for handbrake release, and according to the customer's requirements or the car's handbrake system type, the control part for handbrake release can be shown in the following three embodiments:

[0014] Example 1 As shown in FIG. 1, in a preferred embodiment, a release control module is provided on the output side of the MCU module, and the release control module is used to directly connect between the vehicle control unit and the electric parking brake switch / auto brake hold switch to realize the handbrake release control.

[0015] Example 2 As shown in FIG. 2, in another preferred embodiment, an automatic parking control module is further provided on the output side of the MCU module, and the output side of the automatic parking control module is electrically connected to an electric parking brake switch / auto brake hold switch.

[0016] Example 3 As shown in FIG. 3, in another preferred embodiment, an automatic parking control module and a release control module are further provided on the output side of the MCU module, the output side of the automatic parking control module is electrically connected to the electric parking brake switch / auto brake hold switch, and the release control module is used to directly connect between the vehicle control unit and the electric parking brake switch / auto brake hold switch to realize the control of handbrake release.

[0017] In the above three embodiments, the signal of the car's electric parking brake switch or the auto brake hold switch harness can be used as the setting switch for the automatic handbrake of the present invention, and other switches can also be used to set the automatic handbrake function.

[0018] When the present invention is installed, the vehicle signal detection module is connected to the signal line of the vehicle, and then the operation control module and the release control module are directly connected between the vehicle body control unit and the electric parking brake switch / auto brake hold switch, and then the MCU module is connected to the vehicle power supply through the power module or directly. The working principle of the present invention is that the vehicle signal detection module detects the conditions suitable for releasing the handbrake, for example, when the vehicle signal detection module detects the vehicle start signal and detects that the shift position is in R, N, D position (non-P position), the MCU module controls the release control module to operate and controls the electronic handbrake to release, that is, to automatically release the electronic handbrake. According to the circuit type of the car handbrake system, the automatic release of the electronic handbrake can be realized independently by the release control module, or can be realized in cooperation with the internal circuit of the electric parking brake switch / auto brake hold switch; the vehicle signal detection module detects the handbrake operation. When the MCU module detects a condition suitable for operation (for example, the handbrake activation condition of some vehicle models is that the vehicle signal detection module detects that the vehicle is starting and the shift position is in P position, and the handbrake activation condition of some vehicle models is that the handbrake is automatically activated when the vehicle engine is turned off), the MCU module controls the operation control module to operate and controls and activates the electronic handbrake, i.e., automatically applies the electronic handbrake; according to the circuit type of the car's handbrake system, the automatic application of the electronic handbrake can be realized independently by the operation control module, or can be realized in cooperation with the internal circuit of the electric parking brake switch / auto brake hold switch.After using the present invention, when the vehicle is started and the shift position is put into a non-P position, the automatic handbrake control device automatically releases the handbrake, and the driver can drive directly without manually controlling the operation of releasing the handbrake. When parking, when the shift position is put into the P position or the vehicle engine is turned off, the automatic handbrake control device automatically activates the handbrake, i.e., automatically applies the handbrake, and the driver can directly turn off the engine and get off the car without manually controlling the operation of applying the handbrake. This method of automatically activating and releasing the handbrake can avoid the situation where the driver forgets to press the electronic handbrake button, and improve the convenience and safety of the electronic handbrake.

[0019] The present invention will be described in detail by taking two mainstream car models of an existing automobile manufacturer as examples to explain the specific operation principle and operation process of the present invention. Figure 4 is a diagram showing the principle of the handbrake system of a car model equipped with only an electric parking brake switch / auto brake hold switch, and Figure 5 is a diagram showing the principle of the handbrake system of a car model equipped with both an electric parking brake switch and an auto brake hold switch. In both car models, handbrake release is achieved by connecting SW6 through connection terminals SW1 and SW3, and handbrake operation is achieved by connecting SW4 through connection terminals SW1 and SW3.

[0020] For the above two vehicle models, the present invention takes as an example that both the operation control module and the release control module are configured using (including) relays, and there are the following 10 types of circuit connection modes. For clarity, the series circuit of the release control module is represented by a chain line, the series circuit of the operation control module is represented by a dashed line, and the car handbrake switch and the handbrake switch plug are respectively represented by dashed frames.

[0021] (Aspect 1) As shown in Figure 6, when the vehicle signal detection module detects the start of the vehicle and detects that the shift position is in the R, N, or D position (non-P position), the MCU module controls and operates the release control module, and the common terminal A1 and the normally closed contact A3 of the release control module are opened, that is, SW4 and SW4-1 are disconnected, and SW4-1 is connected to SW3-1 and SW3 through the internal circuit of the electric parking brake switch / auto brake hold switch of the car. At the same time, the common terminal A1 and the normally open contact A2 of the release control module are closed, that is, SW4-1, SW1-1 and SW1 are connected, and SW1-1 is connected to SW6-1 and SW6 through the internal circuit of the electric parking brake switch / auto brake hold switch of the car, thereby realizing the handbrake release through the connection of SW1, SW3 and SW6. When the vehicle signal detection module detects the start of the vehicle and the shift position is in the P position, the MCU module controls the operation control module to operate, and the common terminal B1 and the normally closed contact B3 of the operation control module are opened, that is, SW6 and SW6-1 are disconnected, and SW6-1 is connected to SW1-1 and SW1 through the internal circuit of the electric parking brake switch / auto brake hold switch of the vehicle. At the same time, the common terminal B1 and the normally open contact B2 of the operation control module are closed, that is, SW6-1, SW3-1 and SW3 are connected, and SW3-1 is connected to SW4-1 and SW4 through the internal circuit of the electric parking brake switch / auto brake hold switch of the vehicle, thereby realizing the handbrake operation through the connection of SW1, SW3 and SW4.

[0022] (Aspect 2) As shown in Figure 7, when the vehicle signal detection module detects the start of the vehicle and detects that the shift position is in the R, N, or D position (non-P position), the MCU module controls and operates the release control module, and the common terminal A1 and the normally closed contact A3 of the release control module are opened, that is, SW4 and SW4-1 are disconnected, and SW4-1 is connected to SW3-1 and SW3 through the internal circuit of the electric parking brake switch / auto brake hold switch of the car. At the same time, the common terminal A1 and the normally open contact A2 of the release control module are closed, that is, SW4-1, SW1-1 and SW1 are connected, and SW1-1 is connected to SW6-1 and SW6 through the internal circuit of the electric parking brake switch / auto brake hold switch of the car, thereby realizing the handbrake release through the connection of SW1, SW3 and SW6. When the vehicle signal detection module detects the start of the vehicle and detects that the shift position is in the P position, the MCU module controls the operation control module to operate, and the common terminal B1 and the normally closed contact B3 of the operation control module are opened, that is, SW6 and SW6-1 are disconnected, and SW6-1 is connected to SW1-1 and SW1 through the internal circuit of the electric parking brake switch / auto brake hold switch of the vehicle. At the same time, the common terminal B1 and the normally open contact B2 of the operation control module are closed, that is, SW6-1, SW3-1 and SW3 are connected, and SW3-1 is connected to SW4-1 and SW4 through the internal circuit of the electric parking brake switch / auto brake hold switch of the vehicle, and the handbrake operation is realized through the connection of SW1, SW3 and SW4.

[0023] (Aspect 3) As shown in Figure 8, when the vehicle signal detection module detects the start of the vehicle and detects that the shift position is in the R, N, or D position (non-P position), the MCU module controls and operates the release control module, and the common terminal A1 and the normally closed contact A3 of the release control module are opened, that is, SW4 and SW4-1 are disconnected, and SW4-1 is connected to SW3-1 and SW3 through the internal circuit of the electric parking brake switch / auto brake hold switch of the car. At the same time, the common terminal A1 and the normally open contact A2 of the release control module are closed, that is, SW4-1, SW1-1 and SW1 are connected, and SW1-1 is connected to SW6-1 and SW6 through the internal circuit of the electric parking brake switch / auto brake hold switch of the car, thereby realizing the handbrake release through the connection of SW1, SW3 and SW6. When the vehicle signal detection module detects the start of the vehicle and detects that the shift position is in the P position, the MCU module controls the operation control module to operate, and the common terminal B1 and the normally closed contact B3 of the operation control module are opened, that is, SW6 and SW6-1 are disconnected, and SW6-1 is connected to SW1-1 and SW1 through the internal circuit of the electric parking brake switch / auto brake hold switch of the car. At the same time, the common terminal B1 and the normally open contact B2 of the operation control module are closed, that is, SW6-1, SW3-1 and SW3 are connected, and SW3-1 is connected to SW4-1 and SW4 through the internal circuit of the electric parking brake switch / auto brake hold switch of the car, thereby realizing the handbrake operation through the connection of SW1, SW3 and SW4. At the same time as controlling and operating the actuation control module, the MCU module controls and operates the control module of the electronic parking brake switch, and outputs negative power to the connection cable / connector of the electronic parking brake switch.

[0024] (Aspect 4) As shown in Figure 9, when the vehicle signal detection module detects the start of the vehicle and detects that the shift position is in the R, N, or D position (non-P position), the MCU module controls and operates the release control module, and the common terminal A1 and the normally closed contact A3 of the release control module are opened, that is, SW4 and SW4-1 are disconnected, and SW4-1 is connected to SW3-1 and SW3 through the internal circuit of the electric parking brake switch / auto brake hold switch of the car. At the same time, the common terminal A1 and the normally open contact A2 of the release control module are closed, that is, SW4-1, SW1-1 and SW1 are connected, and SW1-1 is connected to SW6-1 and SW6 through the internal circuit of the electric parking brake switch / auto brake hold switch of the car, thereby realizing the handbrake release through the connection of SW1, SW3 and SW6. When the vehicle signal detection module detects the start of the vehicle and detects that the shift position is in the P position, the MCU module controls the operation control module to operate, and the common terminal B1 and the normally closed contact B3 of the operation control module are opened, that is, SW6 and SW6-1 are disconnected, and SW6-1 is connected to SW1-1 and SW1 through the internal circuit of the electric parking brake switch / auto brake hold switch of the car. At the same time, the common terminal B1 and the normally open contact B2 of the operation control module are closed, that is, SW6-1, SW3-1 and SW3 are connected, and SW3-1 is connected to SW4-1 and SW4 through the internal circuit of the electric parking brake switch / auto brake hold switch of the car, thereby realizing the handbrake operation through the connection of SW1, SW3 and SW4. When the actuation control module is controlled and operated, B4 and B5 are conductive and negative power is output to the connection cable / connector of the electronic parking brake switch.

[0025] (Aspect 5) As shown in FIG. 10, when the vehicle signal detection module detects the start of the vehicle and detects that the shift position is in the R, N, or D position (non-P position), the MCU module controls the release control module to operate, and the common terminal A1 and the normally closed contact A3 of the release control module are opened, that is, SW3 and SW3-1 are disconnected, and at the same time, the common terminal A1 and the normally open contact A2 of the release control module are closed, that is, SW3, SW6-1, and SW6 are connected, and SW6-1 is connected to SW1-1 and SW1 through the internal circuit of the electric parking brake switch / auto brake hold switch of the car, and the handbrake release is realized through the connection of SW1, SW3, and SW6; When the vehicle signal detection module detects that the vehicle is started and the shift position is in the P position, the MCU module controls the operation control module to operate, and the common terminal B1 and the normally closed contact B3 of the operation control module are opened, that is, SW1 and SW1-1 are disconnected, and at the same time, the common terminal B1 and the normally open contact B2 of the operation control module are closed, that is, SW1, SW4-1 and SW4 are connected, and SW4-1 is connected to SW3-1 and SW3 through the internal circuit of the car's electric parking brake switch / auto brake hold switch, and the handbrake operation is realized through the connection of SW1, SW3 and SW4; At the same time as controlling and operating the actuation control module, the MCU module controls and operates the control module of the electronic parking brake switch, and outputs negative power to the connection cable / connector of the electronic parking brake switch.

[0026] (Aspect 6) As shown in FIG. 11, when the vehicle signal detection module detects the start of the vehicle and detects that the shift position is in the R, N, or D position (non-P position), the MCU module controls the release control module to operate, and the common terminal A1 and the normally closed contact A3 of the release control module are opened, that is, SW3 and SW3-1 are disconnected, and at the same time, the common terminal A1 and the normally open contact A2 of the release control module are closed, that is, SW3, SW6-1, and SW6 are connected, and SW6-1 is connected to SW1-1 and SW1 through the internal circuit of the car's electric parking brake switch / auto brake hold switch, and the handbrake release is realized through the connection of SW1, SW3, and SW6; When the vehicle signal detection module detects the start of the vehicle and that the shift position is in the P position, the MCU module controls the operation control module to operate, and the common terminal B1 and the normally closed contact B3 of the operation control module are opened, i.e., SW1 and SW1-1 are disconnected, and at the same time, the common terminal B1 and the normally open contact B2 of the operation control module are closed, i.e., SW1, SW4-1 and SW4 are connected, and SW4-1 is connected to SW3-1 and SW3 through the internal circuit of the car's electric parking brake switch / auto brake hold switch, and the handbrake operation is realized through the connection of SW1, SW3 and SW4.

[0027] (Aspect 7) As shown in FIG. 12, when the vehicle signal detection module detects the start of the vehicle and detects that the shift position is in the R, N, or D position (non-P position), or detects the manual release operation, the MCU module controls the release control module to operate, and the common terminal A1 and the normally open contact A2 of the release control module are closed, and at the same time, the common terminal A3 and the normally closed contact A4 are opened, that is, SW3 and SW6 are connected, and SW6 is connected to SW1 through the internal circuit of the operation control module, thereby realizing the handbrake release through the connection between SW1, SW3 and SW6; When the vehicle signal detection module detects the start of the vehicle and detects that the shift position is in the P position, or detects the manual operation of the operation, the MCU module controls the operation control module to operate, and the common terminal B1 and the normally closed contact B2 of the operation control module are opened, and at the same time, B3 and the normally open contact B4 are connected, that is, SW1 and SW4 are connected, and SW4 is connected to SW3 through the internal circuit of the release control module, and the handbrake operation is realized through the connection between SW1, SW3 and SW4; At the same time as controlling and operating the actuation control module, the MCU module controls and operates the control module of the electronic parking brake switch, and outputs negative power to the connection cable / connector of the electronic parking brake switch.

[0028] (Aspect 8) As shown in FIG. 13, when the vehicle signal detection module detects the start of the vehicle and detects that the shift position is in the R, N, or D position (non-P position), or detects the manual release operation, the MCU module controls the release control module to operate, and the common terminal A1 and the normally open contact A2 of the release control module are closed, and at the same time, the common terminal A3 and the normally closed contact A4 are opened, that is, SW3 and SW6 are connected, and SW6 is connected to SW1 through the internal circuit of the operation control module, thereby realizing the handbrake release through the connection between SW1, SW3 and SW6; When the vehicle signal detection module detects the start of the vehicle and detects that the shift position is in the P position, or detects manual operation of operation, the MCU module controls the operation control module to operate, and the common terminal B1 and the normally closed contact B2 of the operation control module are opened, and at the same time, B3 and the normally open contact B4 are connected, that is, SW1 and SW4 are connected, and SW4 is connected to SW3 through the internal circuit of the release control module, and the handbrake operation is realized through the connection of SW1, SW3 and SW4.

[0029] (Aspect 9) As shown in Figure 14, when the vehicle signal detection module detects that the vehicle is starting and the shift position is in the R, N, or D position (non-P position), the MCU module controls K1, K2, K3, and K4 to operate simultaneously, and realizes the handbrake release through the connection of SW1, SW3, and SW6; When the vehicle signal detection module detects the start of the vehicle and that the shift position is in the P position, the MCU module controls K1, K2, K3, and K4 to operate simultaneously, and realizes the handbrake operation through the connection of SW1, SW3, and SW4.

[0030] The present invention is described in more detail above with reference to preferred embodiments, but the specific embodiments of the present invention are not limited to these embodiments. A person skilled in the art may add various simple inferences or substitutions without departing from the technical spirit of the present invention, and such inferences or substitutions should be considered to be included in the scope of protection of the present invention.

Claims

1. An automatic handbrake control device, comprising: a vehicle signal detection module, an MCU module, an operation control module, and a power supply module, the power supply module and the vehicle signal detection module are both connected to the MCU module; The output side of the MCU module is connected to the operation control module; The vehicle signal detection module is used for detecting a vehicle start signal and / or a vehicle shift position signal, and the operation control module is used for directly connecting the vehicle body control unit and the electric parking brake switch / auto brake hold switch to realize the control of the handbrake operation; An automatic control device for a handbrake, characterized in that when the vehicle signal detection module detects conditions suitable for handbrake activation, the MCU module controls and operates the operation control module, and activates the handbrake by changing the closed / open state between the vehicle control unit and the electric parking brake switch / auto brake hold switch.

2. a release control module is provided on the output side of the MCU module, and the release control module is used to directly connect the vehicle control unit and the electric parking brake switch / auto brake hold switch to realize the handbrake release control; 2. The automatic handbrake control device according to claim 1, characterized in that, when the vehicle signal detection module detects a condition suitable for releasing the handbrake, the MCU module controls and operates the release control module to change the closed / open state between the vehicle control unit and the electric parking brake switch / auto brake hold switch, thereby releasing the handbrake.

3. An automatic control device for a hand brake as described in claim 1 or 2, which controls operation of the hand brake in cooperation with an internal circuit of the electric parking brake switch / auto brake hold switch.

4. An automatic control device for a handbrake as described in any one of claims 1 to 3, characterized in that the conditions for operating the handbrake are that the vehicle is started and the shift position is in the P position, or that the vehicle engine is stopped.

5. 3. The automatic handbrake control device according to claim 2, wherein the activation control module and the release control module each include a relay or an IC.

Images