Simulation test bench for electronic mechanical brake system

Abstract

The utility model discloses a simulation test bench for an electronic mechanical brake system, which comprises a test bench, a middle vertical plate fixed on the outer wall of the top of the test bench, a lower-layer plate fixed on the outer wall of the top of the middle vertical plate, a side baffle fixed on the outer wall of the lower-layer plate, and an upper-layer plate fixed on the outer wall of the side baffle. A brake pedal assembly, an EMB controller and a plurality of caliper control switches are arranged on the outer walls of the middle vertical plate, the lower-layer plate and the upper-layer plate respectively, a plurality of fixing frames are fixed to the outer wall of the top of the test board, mounting blocks are fixed to the outer walls of one sides of the fixing frames, fixing plates are fixed to the outer walls of the mounting blocks, and brake calipers are fixed to the outer walls of the fixing plates. The brake calipers, the brake pedal assembly and the caliper control switch are electrically connected with the EMB controller. According to the utility model, real driver pedal input is allowed, and the pedal feeling can be truly tested; the simulation test bench can be used for EMB system function testing and can also be used for rapid verification of changes of development software.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic mechanical brake system simulation test, in particular to a simulation test bench for electronic mechanical brake system. Background Art

[0002] As people's requirements for automobile safety increase, their requirements for automobile braking devices are also constantly increasing. In recent years, with the continuous development of new energy vehicles, wire control brake technology has been more and more widely used. Compared with the current mainstream electronic hydraulic brake system, electronic mechanical brake (EMB, ElectroMechanicalBrake) has the advantage of integration with other electronic systems. It is the mainstream development in the era of high-level autonomous driving. Before using the electronic mechanical brake system, it is necessary to perform system simulation testing on the electronic mechanical brake system in order to intuitively detect the performance of the brake system.

[0003] Currently, the existing technology lacks a mechanism for performing system simulation testing on the electronic mechanical brake system. Therefore, it is urgent to design a simulation test bench for the electronic mechanical brake system to solve the problem of the lack of special test equipment for the EMB brake system in the existing technology and provide a more efficient and accurate test bench. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a simulation test bench for an electronic mechanical brake system.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A simulation test bench for an electronic mechanical brake system includes a test bench, wherein a neutral plate is fixed to the outer wall of the top of the test bench, a lower plate is fixed to the outer wall of the top of the neutral plate, a side baffle is fixed to the outer wall of the lower plate, an upper plate is fixed to the outer wall of the side baffle, a brake pedal assembly, an EMB controller and multiple caliper control switches are respectively provided on the outer walls of the neutral plate, the lower plate and the upper plate, multiple fixing frames are fixed to the outer wall of the top of the test bench, a mounting block is fixed to the outer wall of one side of the fixing frame, a fixing plate is fixed to the outer wall of the mounting block, a brake caliper is fixed to the outer wall of the fixing plate, and the brake caliper, brake pedal assembly and caliper control switch are respectively electrically connected to the EMB controller.

[0007] As a further solution of the present invention: a slide is fixed to the outer wall of the top of the test bench, and a driving seat is slidably connected to the outer wall of the slide.

[0008] As a further solution of the present invention: a battery is provided on the top outer wall of the test bench.

[0009] As a further solution of the present invention: a plurality of pulleys are fixed to the outer wall of the bottom of the test bench.

[0010] As a further solution of the present invention: the inner wall of the fixed frame is rotatably connected to a transmission shaft, and the outer wall of the transmission shaft is fixed with a brake disc.

[0011] As a further solution of the present invention: a wheel speed sensor is provided on an inner wall of one side of the fixing frame, and the wheel speed sensor is electrically connected to the EMB controller.

[0012] As a further solution of the present invention: a reserved groove is opened on the outer wall of one side of the fixing frame.

[0013] The beneficial effects of the utility model are:

[0014] 1. The EMB electromechanical simulation test bench can test the EMB at the system level, sending commands from the EMB controller to the EMB brakes for execution, and detecting the working status of each module throughout the process. The test bench allows real driver pedal input, allowing for realistic testing of pedal feel. The simulation test bench can be used for EMB system functional testing and rapid verification of changes to development software.

[0015] 2. When the driver sits in the driver's seat and steps on the brake pedal assembly, the EMB controller receives the driver's braking request and performs brake caliper braking based on the pedal travel and force input signals. The CANape tool can also collect test data in real time for processing and analysis. EMB brake calipers of different models and specifications can be installed on the outer wall of the fixing frame through screws, taking up little space, being easy to move, and being simple and flexible.

[0016] 3. The drive shaft can be connected to the output shaft of the external power output device through a corresponding transmission belt, thereby driving the brake disc to rotate at a certain speed. The wheel speed sensor can monitor the speed of the brake disc in real time. When the EMB controller controls the brake caliper to brake the rotating brake disc, the wheel speed sensor can monitor the speed of the brake disc in real time, thereby intuitively judging the braking effect of the electronic mechanical braking system through the change in speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of a simulation test bench for an electronic mechanical brake system proposed in the present invention;

[0018] Figure 2 This is a schematic diagram of a fixed frame structure for an electronic mechanical brake system simulation test bench proposed in the present invention;

[0019] Figure 3The utility model provides a circuit flow diagram of a simulation test bench for an electronic mechanical brake system.

[0020] In the figure: 1-test bench, 2-neutral plate, 3-brake pedal assembly, 4-pulley, 5-driver's seat, 6-lower plate, 7-EMB controller, 8-upper plate, 9-caliper control switch, 10-side baffle, 11-fixing frame, 12-brake caliper, 13-battery, 14-fixing plate, 15-mounting block, 16-reserved slot, 17-wheel speed sensor, 18-drive shaft, 19-brake disc, 20-slide. DETAILED DESCRIPTION

[0021] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0022] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0024] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0025] Example 1

[0026] A simulation test bench for an electromechanical brake system, such as Figure 1-3As shown, it includes a test bench 1, wherein a neutral plate 2 is fixed to the top outer wall of the test bench 1, a lower plate 6 is fixed to the top outer wall of the neutral plate 2, a side baffle 10 is fixed to the outer wall of the lower plate 6, an upper plate 8 is fixed to the outer wall of the side baffle 10, a brake pedal assembly 3, an EMB controller 7 and a plurality of caliper control switches 9 are respectively provided on the outer walls of the neutral plate 2, the lower plate 6 and the upper plate 8, a plurality of fixed frames 11 are fixed to the top outer wall of the test bench 1, a mounting block 15 is fixed to the outer wall of one side of the fixed frame 11, a fixed plate 14 is fixed to the outer wall of the mounting block 15, a brake caliper 12 is fixed to the outer wall of the fixed plate 14, and the brake caliper 12, the brake pedal assembly 3 and the caliper control switch 9 are respectively electrically connected to the EMB controller 7.

[0027] A slide 20 is fixed to the top outer wall of the test bench 1, and a driving seat 5 is slidably connected to the outer wall of the slide 20;

[0028] The top outer wall of the test bench 1 is provided with a battery 13;

[0029] The present invention provides a simulation test bench for an electronic mechanical brake system, comprising a test bench 1, wherein the surface of the test bench 1 comprises four EMB brakes consisting of brake calipers 12 and four sets of fixed tooling consisting of a fixed frame 11, the fixed tooling is fixedly connected to the test bench 1, an external 12V battery 13 is connected to the test bench 1 for power supply, wherein an upper plate 8 is provided with four caliper control switches 9 for controlling the power on and off of the EMB brake and the EMB controller 7; a brake pedal assembly 3 is installed in the middle of a neutral plate 2; the EMB controller 7 is arranged on a lower plate 6, when a driver sits on a driving seat 5 and steps on the brake pedal assembly 3, the EMB controller 7 receives a braking request from the driver, performs a braking operation of the brake caliper 12 according to a pedal stroke and force input signal, and can collect test data in real time for processing and analysis through a CANape tool, and the outer wall of the fixed frame 11 can be installed with EMB brake calipers 12 of different models and specifications through screws, the test bench 1 takes up little space, is easy to move, and is simple and flexible.

[0030] The EMB electromechanical simulation test bench can test the EMB at the system level, sending commands from the EMB controller 7 to the EMB brake for execution, and detecting the working status of each module throughout the process. The test bench allows real driver pedal input, which can realistically test pedal feel. The simulation test bench can be used for EMB system function testing and can also be used to quickly verify changes to development software.

[0031] like Figure 1 As shown, a plurality of pulleys 4 are fixed to the outer wall of the bottom of the test bench 1 .

[0032] Working principle: The surface of the test bench 1 includes 4 EMB brakes consisting of brake calipers 12 and 4 sets of fixed tooling consisting of fixed frames 11. The fixed tooling is fixedly connected to the test bench 1. The test bench 1 is externally connected to a 12V battery 13 and powered by electricity. The upper plate 8 is provided with 4 caliper control switches 9, which are used to control the power on and off of the EMB brake and the EMB controller 7; the brake pedal assembly 3 is installed in the middle of the neutral plate 2; the EMB controller 7 is set on the lower plate 6. When the driver sits on the driving seat 5 and steps on the brake pedal assembly 3, the EMB controller 7 receives the driver's braking request and will perform the brake caliper 12 braking operation according to the pedal stroke and force input signal. The test data can be collected in real time through the CANape tool for processing and analysis. The outer wall of the fixed frame 11 can be installed with EMB brake calipers 12 of different models and specifications through screws.

[0033] Example 2

[0034] A simulation test bench for an electromechanical brake system, such as Figure 2 As shown, this embodiment makes the following improvements on the basis of embodiment 1: the inner wall of the fixed frame 11 is rotatably connected to a transmission shaft 18, and a brake disc 19 is fixed to the outer wall of the transmission shaft 18; a wheel speed sensor 17 is provided on the inner wall of one side of the fixed frame 11, and the wheel speed sensor 17 is electrically connected to the EMB controller 7; a reserved groove 16 is provided on the outer wall of one side of the fixed frame 11; the transmission shaft 18 can be connected to the output shaft of an external power output device through a corresponding transmission belt, thereby driving the brake disc 19 to rotate at a certain speed, and the wheel speed sensor 17 can monitor the speed of the brake disc 19 in real time. When the EMB controller 7 controls the brake caliper 12 to operate and brake the rotating brake disc 19, the wheel speed sensor 17 can monitor the speed of the brake disc 19 in real time, so as to intuitively judge the braking effect of the electronic mechanical braking system through the change in speed.

[0035] Working principle: The drive shaft 18 can be connected to the output shaft of the external power output device through the corresponding transmission belt, thereby driving the brake disc 19 to rotate at a certain speed. The wheel speed sensor 17 can monitor the speed of the brake disc 19 in real time. When the EMB controller 7 controls the brake caliper 12 to operate and brake the rotating brake disc 19, the wheel speed sensor 17 can monitor the speed of the brake disc 19 in real time.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A test bench for simulating an electronic mechanical brake system, comprising a test bench (1), characterized in that: The top outer wall of the test bench (1) is fixed with a neutral plate (2), the top outer wall of the neutral plate (2) is fixed with a lower plate (6), the outer wall of the lower plate (6) is fixed with a side baffle (10), the outer wall of the side baffle (10) is fixed with an upper plate (8), the outer walls of the neutral plate (2), the lower plate (6) and the upper plate (8) are respectively provided with a brake pedal assembly (3), an EMB controller (7) and a plurality of caliper control switches (9), the top outer wall of the test bench (1) is fixed with a plurality of fixed frames (11), the outer wall of one side of the fixed frame (11) is fixed with a mounting block (15), the outer wall of the mounting block (15) is fixed with a fixed plate (14), the outer wall of the fixed plate (14) is fixed with a brake caliper (12), and the brake caliper (12), the brake pedal assembly (3) and the caliper control switch (9) are respectively electrically connected to the EMB controller (7).

2. The electronic mechanical brake system simulation test bench according to claim 1, characterized in that: A slide seat (20) is fixed to the outer wall of the top of the test bench (1), and a driving seat (5) is slidably connected to the outer wall of the slide seat (20).

3. The electronic mechanical brake system simulation test bench according to claim 2, characterized in that: A storage battery (13) is provided on the top outer wall of the test bench (1).

4. The electronic mechanical brake system simulation test bench according to claim 3, characterized in that: A plurality of pulleys (4) are fixed to the outer wall of the bottom of the test bench (1).

5. The simulation test bench for an electronic mechanical brake system according to claim 1, characterized in that: The inner wall of the fixed frame (11) is rotatably connected to a transmission shaft (18), and a brake disc (19) is fixed to the outer wall of the transmission shaft (18).

6. The electronic mechanical brake system simulation test bench according to claim 5, characterized in that: A wheel speed sensor (17) is provided on an inner wall of one side of the fixing frame (11), and the wheel speed sensor (17) is electrically connected to the EMB controller (7).

7. The electronic mechanical brake system simulation test bench according to claim 6, characterized in that: A reserved groove (16) is formed on the outer wall of one side of the fixing frame (11).

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