Unmanned drive-by-wire brake mechanism for electric vehicle

Abstract

The utility model discloses an unmanned drive-by-wire brake mechanism for an electric vehicle, belongs to the technical field of drive-by-wire brake of the electric vehicle, and aims to solve the problems that when an ECU (Electronic Control Unit) is fastened together with a motor shell through a bolt, the difficulty and time of disassembly and maintenance are increased due to limited operation space in a vehicle body when the ECU needs to be disassembled. Comprising a shell and an electronic control unit, a protective shell is installed on the side face of the shell, a motor is installed on the side face of the shell, the motor is arranged in the protective shell, two sets of symmetrically-distributed quick-release assemblies are installed at the end, away from the shell, outside the protective shell, two sets of inserting plates are installed on the side face of the electronic control unit, and inserting holes are formed in the inserting plates. According to the unmanned drive-by-wire brake mechanism for the electric vehicle, through cooperative use of the quick disassembly assembly, the insertion plate and the insertion hole, the function of quick disassembly and assembly of the electronic control unit is achieved, when the internal operation space of the vehicle body is limited, the disassembly and maintenance difficulty is lowered, the disassembly time is shortened, and the practicability is improved.

Description

Technical Field

[0001] This utility model belongs to the field of electric vehicle brake-by-wire technology, specifically relating to an unmanned driverless brake-by-wire mechanism for electric vehicles. Background Technology

[0002] Braking by wire is an advanced braking system technology that transmits braking commands through electronic signals and wires, replacing the mechanical connections and hydraulic transmissions in traditional braking systems. Braking by wire is commonly used in the braking systems of driverless electric vehicles.

[0003] In the brake-by-wire mechanism of an autonomous electric vehicle, the ECU (Electronic Control Unit) is bolted to the motor housing (the motor housing provides protection for the motor). When the ECU needs to be disassembled, the limited operating space inside the vehicle increases the difficulty and time required for disassembly and maintenance. Therefore, a technical measure is proposed to solve the problem that the existing technology of bolting the ECU to the motor housing increases the difficulty and time required for disassembly and maintenance due to the limited operating space inside the vehicle. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an unmanned driving-by-wire braking mechanism for electric vehicles. This mechanism aims to solve the problem that in existing technologies, the ECU is fastened to the motor housing with bolts, which increases the difficulty and time required for disassembly and maintenance due to the limited operating space inside the vehicle when the ECU needs to be disassembled.

[0006] (2) Technical solution

[0007] To address the aforementioned technical problems, this utility model provides an unmanned driving-by-wire braking mechanism for electric vehicles, comprising a housing and an electronic control unit. A protective shell is mounted on the side of the housing, and a motor is mounted on the side of the housing, located inside the protective shell. Two sets of symmetrically distributed quick-release components are mounted on the outer end of the protective shell away from the housing. Two sets of insert plates are mounted on the side of the electronic control unit, each with a socket. The insert plates and sockets are compatible with the quick-release components. Thanks to the coordinated use of the quick-release components, insert plates, and sockets, the electronic control unit can be quickly disassembled and assembled. This reduces the difficulty of disassembly and maintenance, shortens disassembly time, and improves practicality when the operating space inside the vehicle is limited. Furthermore, the limiting rod facilitates the limitation of the vertical movement of the insert rod, preventing the insert rod from deflecting.

[0008] Furthermore, an oil can is installed on the upper part of the housing.

[0009] Further, the shell side is provided with a front baffle, and a plurality of groups of uniformly distributed baffle interfaces are arranged on the side of the front baffle away from the shell.

[0010] Further, the front baffle is provided with a pedal interface at a middle position of the side of the front baffle away from the shell.

[0011] Further, the quick release assembly comprises box bodies, and the two groups of box bodies are fixedly and symmetrically arranged at two ends of the side of the protective shell, and side holes are arranged in the box bodies.

[0012] Further, the box body is slidably connected with a button, the lower end of the button is connected with a lifting plate, the lower surface of the lifting plate is provided with two groups of symmetrically distributed vertical rods, the lower end of the vertical rod is connected with a bottom plate, the bottom plate is slidably connected with two groups of symmetrically distributed limiting rods, the limiting rods are fixedly arranged in the box body, an insertion rod is arranged at a middle position of the lower surface of the bottom plate, a spring is arranged outside the limiting rod, the upper end of the spring is arranged on the lower surface of the bottom plate, and the lower end of the spring is arranged below the box body.

[0013] Further, the plug plate is matched with the side hole, and the insertion rod is slidably matched with the insertion hole.

[0014] (3) beneficial effects

[0015] Compared with the prior art, the beneficial effects of the utility model lie in that:

[0016] The utility model discloses a quick release assembly, plug plate and insertion hole are matched, realize the function of quick disassembly and assembly of electronic control unit, when the operation space in the car body is limited, reduce the difficulty of disassembly and maintenance, reduce the time of disassembly, improve practicality, and the limiting rod is convenient for the up and down movement of the insertion rod and is limited, prevents the deflection of insertion rod, and the bottom plate slides down along the limiting rod when the bottom plate is driven down by the vertical rod and moves down under the button, the insertion rod is separated from the insertion hole when the bottom plate moves down, then the electronic control unit is pulled out, then the button is released, the insertion rod is driven to the initial position under the rebound of the spring, then the connection line of the electronic control unit and motor is removed, then the electronic control unit is taken out. ACCOUNT OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 is a separation state structure schematic diagram of the utility model;

[0020] Figure 3 is a plugboard structure schematic diagram;

[0021] Figure 4 is a separation state structure schematic diagram of the quick release assembly.

[0022] The signs in the drawings are: 1, a shell; 2, a quick release assembly; 3, an oil pot; 4, a coaming interface; 5, a front coaming; 6, a pedal interface; 7, an electronic control unit; 8, a plugboard; 9, a protective shell; 10, a motor; 11, a jack; 201, a box body; 202, a side hole; 203, a button; 204, a lifting plate; 205, a vertical rod; 206, a limiting rod; 207, a bottom plate; 208, a plug rod; 209, a spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] The specific embodiment is an unmanned line control brake mechanism for an electric vehicle, and a structure schematic diagram thereof is as shown in Figure 1 、 Figure 2 、 Figure 3As shown, including the shell 1 and electronic control unit 7, the shell 1 side is mounted with protective shell 9, the shell 1 side is mounted with motor 10, motor 10 is inside the protective shell 9, the protective shell 9 outside away from the end of the shell 1 is installed with two groups of symmetrical distribution of quick release assembly 2, the electronic control unit 7 side is installed with two groups of plugboard 8, plugboard 8 is provided with a plug hole 11, plugboard 8, plug hole 11 and quick release assembly 2 are adapted, the shell 1 upper part is installed with oil can 3, the shell 1 side is installed with front apron 5, the front apron 5 away from the side of the shell 1 is installed with multiple groups of evenly distributed apron interface 4, the front apron 5 away from the side of the shell 1 is installed with pedal interface 6, in actual use, various sensors on the vehicle (such as speed sensor, pedal stroke sensor, etc.) will monitor the running state of the vehicle and the braking operation intention of the driver in real time, and convert these information into electrical signals to electronic control unit 7 (ECU), ECU receives these signals, will according to the pre-set algorithm and control strategy for analysis and calculation, determine the required braking force size, then, ECU sends instructions to motor 10, motor 10 according to the instruction directly produces mechanical force to push brake parts, realize brake, when the electronic control unit 7 needs to be disassembled, through the quick release assembly 2 quickly disassembles the electronic control unit 7.

[0025] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the quick release assembly 2 includes a box body 201, the box body 201 has two groups, two groups of box body 201 fixedly and symmetrically installs the side of the two ends of the protective shell 9, the box body 201 is internally provided with a side hole 202, the box body 201 is slidably connected with a button 203, the lower end of the button 203 is connected with a lifting plate 204, the lower surface of the lifting plate 204 is provided with two groups of vertically distributed vertical rods 205, the lower end of the vertical rod 205 is connected with a bottom plate 207, the bottom plate 207 is slidably connected with two groups of symmetrically distributed limiting rods 206, the limiting rod 206 is fixedly installed inside the box body 201, the middle position of the lower surface of the bottom plate 207 is provided with a plug rod 208, the limiting rod 206 is externally provided with a spring 209, the upper end of the spring 209 is installed on the lower surface of the bottom plate 207, the lower end of the spring 209 is installed below the inside of the box body 201, the plug plate 8 is clamped and matched with the side hole 202, the plug rod 208 is slidably matched with the plug hole 11, the button 203 is pressed downward, the button 203 moves downward to drive the lifting plate 204 to move downward, the lifting plate 204 moves downward to drive the vertical rod 205 to move downward, the vertical rod 205 moves downward to drive the bottom plate 207 to slide downward along the limiting rod 206, the bottom plate 207 moves downward to compress the spring 209, the bottom plate 207 moves downward to drive the plug rod 208 to move downward, the plug rod 208 moves downward to disengage from the plug hole 11, then the electronic control unit 7 is pulled out, then the button 203 is released, the plug rod 208 is driven back to the initial position under the rebound action of the spring 209, then the connection line between the electronic control unit 7 and the motor 10 is removed (usually, the connection line between the electronic control unit 7 and the motor 10 is left with excess line, which is convenient for installation and disassembly), then the electronic control unit 7 is taken out.

[0026] Working principle: in actual use, various sensors on the vehicle (such as speed sensor, pedal stroke sensor, etc.) will monitor the running state of the vehicle and the braking operation intention of the driver in real time, and transmit these information to the electronic control unit 7 (ECU) in the form of electrical signal, after receiving these signals, the ECU will analyze and calculate according to the pre-set algorithm and control strategy, determine the required braking force, then the ECU sends instructions to the motor 10, the motor 10 directly generates mechanical force to push the brake component according to the instructions to realize braking, when the electronic control unit 7 needs to be disassembled, the electronic control unit 7 is quickly disassembled through the quick release assembly 2;

[0027] The specific working mode of the quick release assembly 2 is that the button 203 is pressed downward, the button 203 moves downward to drive the lifting plate 204 to move downward, the lifting plate 204 moves downward to drive the vertical rod 205 to move downward, the vertical rod 205 moves downward to drive the bottom plate 207 to slide downward along the limiting rod 206, the bottom plate 207 moves downward to compress the spring 209, the bottom plate 207 moves downward to drive the plug rod 208 to move downward, the plug rod 208 moves downward to be separated from the insertion hole 11, then the electronic control unit 7 is pulled out outward, then the button 203 is released, the spring 209 drives the plug rod 208 to return to the initial position, then the connection line between the electronic control unit 7 and the motor 10 is removed (usually, the connection line between the electronic control unit 7 and the motor 10 is provided with excess line, so that the installation and disassembly are facilitated), then the electronic control unit 7 is taken out, through the cooperation of the quick release assembly 2, the plug plate 8 and the insertion hole 11, the function of quickly disassembling and assembling the electronic control unit 7 is realized, when the operation space in the vehicle body is limited, the difficulty of disassembly and maintenance is reduced, the disassembly time is reduced, the practicability is improved, and the limiting rod 206 facilitates the limiting of the upward and downward movement of the plug rod 208, and the deflection of the plug rod 208 is prevented.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. An unmanned brake-by-wire mechanism for electric vehicles, comprising a housing (1) and an electronic control unit (7), characterized in that, The shell (1) side is installed with protective shell (9), the shell (1) side is installed with motor (10), the motor (10) is inside protective shell (9), the protective shell (9) outside is away from the end of shell (1) installs two groups of symmetrical distribution quick release assembly (2), the electronic control unit (7) side is installed with two groups of plugboard (8), the plugboard (8) is opened with jack (11), the plugboard (8), jack (11) and quick release assembly (2) are adapted.

2. The self-driving brake-by-wire mechanism for electric vehicles according to claim 1, wherein The upper part of the shell (1) is provided with an oil can (3).

3. The self-driving brake-by-wire mechanism for electric vehicles according to claim 1, wherein The shell (1) side is installed with front baffle (5), the front baffle (5) is away from the side of shell (1) and is installed with multiple groups of evenly distributed baffle interface (4).

4. The self-driving brake-by-wire mechanism for electric vehicles according to claim 3, characterized in that, The front baffle (5) is installed with a pedal interface (6) away from the side of the shell (1).

5. The self-driving brake-by-wire mechanism for electric vehicles according to claim 1, wherein The quick release assembly (2) includes a box body (201), the box body (201) has two groups, two groups of box body (201) are fixed and symmetrically installed on both ends of the side of protective shell (9), and the box body (201) is provided with a side hole (202) inside.

6. The self-driving brake-by-wire mechanism for electric vehicles according to claim 5, wherein The box body (201) is slidably connected with a button (203), the button (203) is connected with a lifting plate (204) at the lower end, the lifting plate (204) is installed with two groups of symmetrically distributed vertical rods (205) on the lower surface, the vertical rods (205) are connected with a bottom plate (207) at the lower end, the bottom plate (207) is slidably connected with two groups of symmetrically distributed limit rods (206), the limit rods (206) are fixedly installed inside the box body (201), the bottom plate (207) is installed with a plug rod (208) on the lower surface, the limit rods (206) are externally sleeved with a spring (209), the upper end of the spring (209) is installed on the lower surface of the bottom plate (207), and the lower end of the spring (209) is installed below the box body (201).

7. The self-driving brake-by-wire mechanism for electric vehicles according to claim 6, wherein The plugboard (8) is adapted to the side hole (202), and the plug rod (208) is adapted to the plug hole (11).

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