Parking system
By introducing mode switching processor and automatic control circuit driver in the electrical parking brake system, the problem of large area and difficult operation of the traditional handbrake system is solved, and the simple operation and high accuracy of the parking system are achieved, and fuel consumption is reduced. and operation strength.
Patent Information
- Application Number
- CN202420706196.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-07
AI Technical Summary
The traditional handbrake system covers a large area and is not easy to install, has complex pipeline connections, is prone to wear and leads to air leakage, increases vehicle fuel consumption, and is difficult to operate when driving in cities and ramps, increasing the driver's operating strength.
An electrical parking brake system including a mode switching processor, mode switching button and indication module is designed. Manual or automatic mode switching is achieved through automatic control circuit driver and signal collector, and the brake pump is controlled by a motor and execution structure, which simplifies the Operation and improve accuracy.
It realizes the simplicity and easy operation of the parking system, reduces the driver's operating intensity, reduces fuel consumption, and improves the convenience and safety of operation through visual color distinction.
Smart Images
Figure CN222136726U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of automobile electronic control technology, and in particular to an electric parking brake system. Background Art
[0002] The degree of electronicization and intelligence of automobiles is getting higher and higher. The wide application of electronic control systems has greatly improved the driving comfort and driving safety of automobile drivers. For urban roads with frequent stopping and starting, automobile drivers need to frequently step on the brakes, pull the handbrake, and start operations. The problems exposed by the traditional handbrake system are becoming more and more obvious. For example, the manual control valve occupies a large area and is not easy to install, which is not conducive to the aesthetic design of the cab; the pipe connection of the handbrake system is complicated, and the hand control valve and the relay valve need to be connected, which is easy to wear and cause air leakage, thereby increasing vehicle fuel consumption; repeatedly pulling the handbrake and releasing the brake when waiting for a red light in urban driving increases the driver's operating intensity; it is easy to slip when starting on a slope and is not easy to operate.
[0003] In view of the above problems, it is therefore urgent to provide a new type of braking system for trucks or buses to solve the above problems. Utility Model Content
[0004] The embodiment of the present application is to provide a parking system to solve the problem of opening / releasing parking in a simple and easy-to-operate manner to a certain extent.
[0005] In the first aspect, an embodiment of the present application provides a parking system, comprising a mode switching processor, a mode switching button and an indication module, wherein the mode switching button is used to control the mode switching processor, the mode switching processor is connected to the indication module, and the current status is displayed through the indication module; an automatic control circuit driver connected to the mode switching processor, the automatic control circuit driver is connected to a signal collector, and receives information collected by the signal collector; an electronic automatic parking device connected to the control circuit driver, the electronic automatic parking device is connected to a vehicle brake pump, and the brake pump is controlled through a motor and an execution structure, one end of the control circuit drive is connected to a power supply, and the drive is controlled by the power supply, and the other end of the control circuit drive is connected to a key switch, and is directly controlled by the key switch.
[0006] In the above technical solution, the parking system can switch modes more conveniently by designing the circuit connection method.
[0007] In combination with the first aspect, in a possible implementation, the mode switching processor includes an automatic processing mode and a manual processing mode, and different processing modes are switched by pressing the mode switching button.
[0008] In combination with the first aspect, in a possible implementation manner, the mode switching button displays different colors through the indication module to distinguish the working modes.
[0009] In combination with the first aspect, in a possible implementation manner, when the indication module displays green, it is a manual processing mode, and when the indication module displays blue, it is an automatic processing mode.
[0010] In combination with the first aspect, in a possible implementation, in the automatic processing mode, the automatic control circuit driver starts / stops working after receiving a signal collected by the signal collector.
[0011] In combination with the first aspect, in a possible implementation manner, the signal collector includes an acceleration signal collector and a speed signal collector.
[0012] In combination with the first aspect, in one possible implementation, when the vehicle is completely stationary, the automatic control circuit driver starts working and the vehicle will brake automatically; and / or, when the vehicle starts to accelerate or the vehicle is driving normally, the automatic control circuit driver stops working.
[0013] In the above technical solution, the signal collector can collect acceleration signals or pedal signals. When the vehicle starts, an acceleration signal or pedal signal is generally generated, and the brake will stop working at this time. It can be recognized when the vehicle accelerates or decelerates during normal driving. At this time, the automatic control circuit driver still stops working. Only when the vehicle is completely stationary, the automatic control circuit driver starts working and the vehicle will automatically brake.
[0014] In combination with the first aspect, in a possible implementation, when the automatic control circuit driver starts working, the key switch indicator light is displayed in red, and when the automatic control circuit driver stops working, the key switch indicator light is displayed in green.
[0015] In the above technical solution, visual color distinction is simpler and easier to identify.
[0016] In combination with the first aspect, in a possible implementation, in a manual handling mode, when the vehicle is driving, pulling up the button switch can enter emergency braking, and releasing the brake can release the brake; and / or, in an automatic handling mode, when the vehicle is driving, pulling up the button switch can enter emergency braking, and releasing the brake can release the brake.
[0017] In the above technical solution, emergency braking is provided to cope with emergencies, thereby expanding the application scenarios and simplifying the operation.
[0018] In combination with the first aspect, in a possible implementation, the control circuit driver is connected to the main control circuit MCU through a connector circuit, and drives the brake pump to work through a motor; the control circuit driver can collect clutch pedal position signals, accelerator pedal position signals, key switch signals, and ramp angle signals, control the motor and mechanical actuator in the electronic automatic parking device, and realize manual or automatic starting and releasing of the electric parking brake system.
[0019] In the above technical solution, the operation accuracy is improved through richer signal recognition. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 A schematic block diagram of the working principle of the electric parking brake system of some embodiments of the present application;
[0022] Figure 2 A schematic diagram of a power supply circuit of some embodiments of the present application;
[0023] Figure 3 A schematic diagram of an indicator light circuit in some embodiments of the present application;
[0024] Figure 4 A schematic diagram of an indicator light circuit according to some other embodiments of the present application;
[0025] Figure 5 Some schematic diagrams of mode switching control circuits for the present application;
[0026] Figure 6 A schematic diagram of a mode switching control circuit in some embodiments of the present application;
[0027] Figure 7 A schematic diagram of a manual mode circuit for some embodiments of the present application;
[0028] Figure 8 A schematic diagram of a manual mode circuit for some embodiments of the present application;
[0029] Fig. 9 A schematic diagram of a circuit for accelerating signal acquisition in some embodiments of the present application;
[0030] Fig.10 A schematic diagram of a speed signal acquisition circuit for some embodiments of the present application;
[0031] Fig.11 A schematic diagram of an electric door lock signal acquisition circuit in some embodiments of the present application;
[0032] Fig.12 A schematic diagram of a connector circuit for some embodiments of the present application;
[0033] Fig.13 This is a schematic diagram of the main control circuit MCU circuit of some embodiments of the present application;
[0034] Fig.14 Schematic diagram of a motor driving circuit in some embodiments of the present application;
[0035] Fig.15 Schematic diagram of motor current acquisition circuit in some embodiments of the present application. DETAILED DESCRIPTION
[0036] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.
[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.
[0038] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.
[0039] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0040] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0041] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).
[0042] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0043] With the increasing application of automobile information technology, the problems exposed by the traditional handbrake system of trucks or buses are becoming more and more obvious. For example, the manual valve occupies a large area and is not easy to install, which is not conducive to the aesthetic design of the cab; the pipe connection of the handbrake system is complicated, and the manual valve needs to be connected with the relay valve for use; the manual valve is prone to wear after a period of use, causing air leakage, thereby increasing vehicle fuel consumption; repeatedly pulling and releasing the handbrake when waiting for red lights while driving in the city increases the driver's operating intensity; it is easy to slip when starting on a slope, which is not easy to operate.
[0044] Currently, electronic parking can be used. Electronic parking EPB (Electrical Parking Brake), also known as electronic handbrake, refers to the technology of achieving parking brake by electronic control. Unlike traditional mechanical handbrakes, electronic parking systems usually replace the mechanical handbrake lever with an electronic handbrake button. This system not only provides a safer and more reliable braking effect, but also automatically applies the parking brake after the engine is turned off to prevent accidental release, such as children playing or theft. However, in actual applications, the electronic parking technology of related technologies is still imperfect, difficult to operate, unfriendly to drivers, high maintenance costs and affects work efficiency.
[0045] According to some embodiments of the present application, Figure 1 This is a schematic diagram of the working principle of the electric parking brake system of some embodiments of the present application. Figure 1, a parking system, including a mode switching processor, a mode switching button and an indication module, wherein the mode switching button is used to control the mode switching processor, the mode switching processor is connected to the indication module, and the current state is displayed through the indication module; an automatic control circuit driver connected to the mode switching processor, the automatic control circuit driver is connected to a signal collector, and receives information collected by the signal collector; an electronic automatic parking device connected to the control circuit driver, the electronic automatic parking device is connected to a vehicle brake pump, and controls the brake pump through a motor and an execution structure, one end of the control circuit driver is connected to a power supply, and the drive is controlled by the power supply, the other end of the control circuit driver is connected to a key switch, and is directly controlled by the key switch. Figure 2 FIG. 1 is a schematic diagram of a power supply circuit in some embodiments of the present application. Figure 3 This is a schematic diagram of the indicator light circuit of some embodiments of the present application. Figure 4 The following is a schematic diagram of an indicator light circuit of some other embodiments of the present application. In some possible embodiments, the mode switching processor includes an automatic processing mode and a manual processing mode, and different processing modes are switched by pressing the mode switching button.
[0046] like Figure 5 The following are some schematic diagrams of the mode switching control circuits of the present application. Figure 6 Schematic diagram of mode switching control circuit of other embodiments of the present application. Among them, the mode switching button can distinguish the working mode by displaying different colors by the indicator module. Optionally, when the indicator module displays green, it is a manual processing mode, and when the indicator module displays blue, it is an automatic processing mode. Of course, the color marking of the indicator module is selected according to general circumstances. In some other embodiments, other colors can also be selected for distinction, which is not limited here.
[0047] like Figure 7 The following is a schematic diagram of a manual mode circuit of some embodiments of the present application. Figure 8 This is a schematic diagram of a manual mode circuit for some embodiments of the present application.
[0048] Specifically, in the manual mode, when the indicator module displays green, pressing the button switch can release the braking state, and pulling up the button switch can enter the braking state.
[0049] Specifically, in automatic mode, when the vehicle is completely stationary for a certain period of time, optionally, when the vehicle is stationary for 3 to 5 seconds, the system will automatically enter the braking state, and the indicator light will be red. Specifically, in automatic mode, lightly step on the accelerator, the brakes will be automatically released, and the vehicle will drive normally, and the indicator light will be green. It should be noted that the color of the indicator light can also be other colors as long as it is easy to distinguish.
[0050] Optionally, in the automatic processing mode, the automatic control circuit driver starts / stops operation after receiving a signal collected by a signal collector. Optionally, the signal collector includes an acceleration signal collector and a speed signal collector.
[0051] like Fig. 9 The schematic diagram of the acceleration signal acquisition circuit for some embodiments of the present application is as follows: Fig.10 Schematic diagram of speed signal acquisition circuit for some other embodiments of the present application. Optionally, when the vehicle is completely stationary, the automatic control circuit driver starts working and the vehicle will brake automatically. When the vehicle starts to accelerate or the vehicle is driving normally, the automatic control circuit driver stops working. The signal collector can collect acceleration signals or pedal signals. When the vehicle starts, an acceleration signal is generally generated, at which time the brake will stop working. It is identifiable when the vehicle accelerates or decelerates during normal driving. At this time, the automatic control circuit driver still stops working. Only when the vehicle is completely stationary, the automatic control circuit driver starts working and the vehicle will brake automatically.
[0052] Optionally, when the automatic control circuit driver starts working, the key switch indicator light is displayed in red, and when the automatic control circuit driver stops working, the key switch indicator light is displayed in green. Visual color distinction is simpler and easier to identify, which is beneficial to the operator's operation.
[0053] Optionally, in manual handling mode, when the vehicle is in motion, pulling up the button switch can enter emergency braking, and releasing the brake can release the brake. Optionally, in automatic handling mode, when the vehicle is in motion, pulling up the button switch can enter emergency braking, and releasing the brake can release the brake. By setting up emergency braking to cope with emergencies, the application scenarios are expanded and the operation is simple. Specifically, during vehicle driving, in manual mode, when the button switch is pulled up for about 1 second, emergency braking is entered, and releasing the button can release the brake. Specifically, during vehicle driving, in automatic mode, when the button switch is pulled up for about 1 second, emergency braking is entered, and releasing the button can release the brake. After releasing the button, the vehicle will remain in automatic parking mode.
[0054] In some possible embodiments, the control circuit driver is connected to the main control circuit MCU through a connector circuit, and the brake pump is driven by a motor. Optionally, the control circuit driver can collect clutch pedal position signals, accelerator pedal position signals, key switch signals, and ramp angle signals to control the motor and mechanical actuator in the electronic automatic parking device to achieve manual or automatic start and release of the electric parking brake system. With this arrangement, the operation is more accurate through richer signal recognition. The present application provides a possible embodiment, such as Fig.12The following are schematic diagrams of connector circuits in some embodiments of the present application. Fig.13 This is a schematic diagram of the main control circuit MCU circuit of some embodiments of the present application. Fig.14 This is a schematic diagram of a motor drive circuit in some embodiments of the present application. Fig.15 This is a schematic diagram of the motor current acquisition circuit in some embodiments of the present application. According to the circuit design in the figure, combined with the hardware, the simple operation of the parking system can be realized.
[0055] The parking system of the present application is universal and can be used for general vehicles.
[0056] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A parking system, characterized in that: include: A mode switching processor, a mode switching button and an indication module, wherein the mode switching button is used to control the mode switching processor, the mode switching processor is connected to the indication module, and the current state is displayed through the indication module; An automatic control circuit driver connected to the mode switching processor, the automatic control circuit driver being connected to a signal collector to receive and process information collected by the signal collector; An electronic automatic parking device connected to the control circuit driver is connected to the vehicle brake pump and controls the brake pump through a motor and an execution structure. One end of the control circuit driver is connected to a power supply and is driven by the power supply. The other end of the control circuit driver is connected to a key switch and is directly controlled by the key switch.
2. The parking system according to claim 1, characterized in that: The mode switching processor includes an automatic processing mode and a manual processing mode, and different processing modes are switched by pressing the mode switching button.
3. The parking system according to claim 2, characterized in that: The mode switching button displays different colors through the indication module to distinguish the working modes.
4. The parking system according to claim 3, characterized in that: When the indicator module displays green, it is a manual processing mode, and when the indicator module displays blue, it is an automatic processing mode.
5. The parking system according to claim 2, characterized in that: In the automatic processing mode, the automatic control circuit driver starts / stops working after receiving and processing the signal collected by the signal collector.
6. The parking system according to claim 5, characterized in that: The signal collector includes an acceleration signal collector and a speed signal collector.
7. The parking system according to claim 5 or 6, characterized in that: When the vehicle is completely stationary, the automatic control circuit driver starts working and the vehicle will brake automatically; and / or, when the vehicle starts to accelerate or the vehicle is driving normally, the automatic control circuit driver stops working.
8. The parking system according to claim 7, characterized in that: When the automatic control circuit driver starts working, the key switch indicator light is displayed in red, and when the automatic control circuit driver stops working, the key switch indicator light is displayed in green.
9. The parking system according to claim 8, characterized in that: In the manual handling mode, when the vehicle is in motion, pulling up the button switch can enter emergency braking, and releasing the button switch can release the brake; and / or, in the automatic handling mode, when the vehicle is in motion, pulling up the button switch can enter emergency braking, and releasing the button switch can release the brake.
10. The parking system according to claim 1, characterized in that: The control circuit driver is connected to the main control circuit MCU through a connector circuit, and drives the brake pump to work through a motor; the control circuit driver can collect clutch pedal position signals, accelerator pedal position signals, key switch signals, and ramp angle signals, control the motor and mechanical actuator in the electronic automatic parking device, and realize manual or automatic starting and releasing of the electric parking brake system.