Booster detection equipment

Abstract

The utility model provides a booster detection device which can comprehensively and accurately detect the overall output capacity of a booster by improving the structure of the booster detection device. In order to achieve the purpose, the utility model provides the booster detection equipment, the booster detection equipment comprises a controller, a hydraulic sensor, a hydraulic conversion piece and a load simulation piece, the load simulation piece comprises a brake pump and a load piece, and the power output end of the brake pump is in transmission connection with the load piece; the hydraulic conversion piece comprises a barrel and a piston, the barrel is provided with a cavity, the cavity is used for containing a liquid medium, and the hydraulic sensor is used for detecting the hydraulic pressure in the cavity; one end of the piston extends into the cylinder body and forms a partial cavity wall of the cavity, and the other end of the piston is used for being in transmission connection with a booster output end of a booster to be detected; and the cavity is communicated with the brake pump through a pipeline.

Description

Technical Field

[0001] This utility model relates to the technical field of power booster testing devices, specifically, to a power booster testing equipment. Background Technology

[0002] In modern automotive braking systems, the power booster is a key component, and its performance directly affects the vehicle's braking effect and driving safety. The power booster, through the combined action of a motor drive component and a transmission mechanism, converts electrical energy into mechanical energy, thereby generating the necessary brake fluid to achieve the vehicle's braking function. Therefore, comprehensive and accurate performance testing of the power booster is particularly important.

[0003] However, currently available booster testing equipment has certain limitations. Traditional testing equipment often focuses on testing the performance of the motor drive component alone, neglecting the impact of the transmission mechanism on the overall output capability. This separate control method cannot truly reflect the overall performance of the motor drive component and the transmission mechanism when working together, which may lead to discrepancies between the test results and actual usage. Therefore, there is an urgent need to develop a method that can comprehensively and accurately test the overall output capability of boosters. Utility Model Content

[0004] The purpose of this invention is to provide a booster testing device. By improving the structure of the booster testing device, it is possible to comprehensively and accurately test the overall output capability of the booster.

[0005] To achieve the above objectives, this utility model provides a booster testing device, which includes a controller, a hydraulic sensor, a hydraulic converter, and a load simulation component. The load simulation component includes a brake pump and a load component, with the power output end of the brake pump being drivenly connected to the load component. The hydraulic converter includes a cylinder and a piston. The cylinder has a cavity for containing liquid medium, and the hydraulic sensor is used to detect the hydraulic pressure within the cavity. One end of the piston extends into the cylinder and forms part of the cavity wall, while the other end of the piston is drivenly connected to the booster output end of the booster to be tested. The cavity is connected to the brake pump via a pipeline.

[0006] By employing the booster testing equipment of this invention, the overall booster output can be tested, avoiding the shortcomings of traditional solutions that only test the output of the booster motor while ignoring the influence of the transmission components on the overall booster output capability. This application includes a hydraulic converter that connects to the booster output end, converting the mechanical force at the booster output end into hydraulic pressure through the conversion, thereby outputting a hydraulic value. Furthermore, this application uses a hydraulic sensor to detect the output hydraulic value to test the overall booster output. Simultaneously, this application includes a load simulation component simulating a vehicle's braking system, connected to the hydraulic converter. The hydraulic output force of the hydraulic converter is output to the load simulation component to simulate the actual operating condition where the booster outputs hydraulic value to the vehicle's braking system. The booster testing equipment of this invention can comprehensively and accurately test the overall output capability of the booster, ensuring that the test results are consistent with the actual usage of the booster.

[0007] Optionally, the hydraulic conversion component further includes a return spring having a fixed end and a movable end. The fixed end is directly or indirectly connected to the cylinder, and the movable end is connected to the piston. When the piston is pushed into the cylinder, the return spring deforms. This simplifies the driving of the detection equipment, simplifies the structure, and saves energy.

[0008] Optionally, it also includes a foot pedal simulator to simulate a driver's pedaling action, outputting a target displacement and driving the pedal lever fork of the power booster to move; the controller is signal-connected to one of the foot pedal simulator and the power booster motor, and when the controller is signal-connected to the power booster motor, the controller sends a specified hydraulic target command to the power booster motor. Using the method described in this application, the testing equipment can be compatible with pressure build-up testing of power boosters with pedals and pure drive-by-wire power boosters, thus improving the applicability of the testing equipment.

[0009] Optionally, the booster testing equipment also includes an automatic connector, which includes a signal adapter that can be plugged into the signal connector of the booster. The controller can then connect to the booster motor via the signal adapter. By setting up the automatic connector, the corresponding connectors of the testing equipment and the booster can be automatically plugged in, improving the automation level of the testing equipment.

[0010] Optionally, the pedal simulation device includes a pedal force output motor and a push rod drivenly connected to the pedal force output motor, the push rod being able to abut against the pedal fork; the pedal simulation device also includes a displacement sensor and a pressure sensor, the displacement sensor being used to monitor the actual displacement of the push rod, and the pressure sensor being used to detect the thrust of the push rod, the displacement sensor and the pressure sensor being signal-connected to the controller. By setting the displacement sensor and the pressure sensor to detect the displacement and thrust of the push rod, the displacement is used as the input displacement of the booster, and the thrust is used as the input force value of the booster, thereby enabling the controller to process and compare the input displacement, input force value and output hydraulic force value.

[0011] Optionally, the end of the pedal lever fork is provided with two connecting arms; the end of the push rod connected to the pedal lever fork is detachably connected to a connector, the surface of the connector that abuts against the connecting arms is a conical surface recessed away from the pedal lever fork. This allows for switching between different connector models for different types of boosters, and by setting the surface of the connector that contacts the pedal lever fork as a conical surface, it can be adapted to pedal lever forks of different sizes.

[0012] Optionally, the booster testing equipment further includes a fixing plate, a guide plate, and a frame for mounting the pedal output motor. The fixing plate is fixedly connected to the frame via a connecting rod; the guide plate is slidably engaged with the connecting rod and fixedly connected to the push rod. This guides the push rod's extension direction and also improves the structural strength of the pedal simulation component.

[0013] Optionally, the power booster testing equipment further includes a frame, a pressure motor, and a slide. The pressure motor is signal-connected to the controller and fixed to the frame; the pressure motor is drive-connected to the slide, which can slide along the frame; the slide is equipped with the hydraulic conversion component. This allows the controller to control the pressure motor to drive the slide to move, thereby causing the hydraulic conversion component to abut against the power booster output end.

[0014] Optionally, the automatic connector is also integrated at the bottom of the carriage, so that the carriage can also drive the automatic connector to move in its sliding direction, thereby simplifying the driving device of the automatic connector in this direction and simplifying the structure of the booster detection equipment.

[0015] Optionally, the automatic connector further includes an electrical adapter that plugs into the corresponding electrical connector of the booster; the electrical adapter and the signal adapter are movable in opposite directions to plug into the booster. This allows for corresponding plug-in connections with each plug of the booster, improving the convenience of the testing equipment.

[0016] Optionally, the hydraulic conversion component includes a cylinder, a piston extending from the cylinder, and a return spring; one end of the return spring is a fixed end, and the other end is a movable end, which is connected to the piston; the piston is used to connect to the power assist output end; the cylinder is internally enclosed to form a cavity, which is connected to the load simulation component. By setting a return spring, the automatic return of the power booster under real working conditions can be simulated, thereby further testing the transmission components of the power booster and the transmission connection performance of the power assist motor.

[0017] A control method for a booster testing device is also provided, which is based on the aforementioned booster testing device;

[0018] The control method for the booster detection equipment includes:

[0019] s2. The hydraulic sensor is used to collect the output hydraulic pressure value of the hydraulic converter;

[0020] s3. Process the output hydraulic value and compare the processing result with the set result to determine whether the processing result matches the set result. If they match, determine that the booster output capability of the booster to be tested meets the requirements.

[0021] By using the booster testing equipment in this utility model, the overall booster output can be tested, avoiding the traditional technical solution that only tests the output of the booster motor and ignores the influence of the transmission components on the overall output capability of the booster.

[0022] Optionally, the booster includes a booster motor, and the controller is signal-connected to the booster motor. Before step s2, the following is also included:

[0023] s1a, Select to connect the controller to the assist motor signal, and disconnect the controller from the pedal force output motor; or,

[0024] s1b. Select to disconnect the controller from the assist motor and connect the controller to the pedal force output motor signal.

[0025] Optionally, the foot pedal simulation device further includes a pressure sensor and a displacement sensor connected to the controller signal. The pressure sensor is used to detect the pushing force of the push rod as an input force value, and the displacement sensor is used to detect the displacement of the push rod as an input displacement value.

[0026] When the controller is connected to the foot pedal simulation component, step s3 further includes: s31, plotting a curve based on the input displacement, input force, and output hydraulic pressure as the processing result. This allows for the comparison and testing of the power booster's performance.

[0027] Other features and advantages of this specification will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of this specification and, together with their description, serve to explain the principles of this specification.

[0029] Figure 1 This is an axonometric view of the detection device in an embodiment of this utility model;

[0030] Figure 2 yes Figure 1 A partially enlarged structural diagram, viewed from the front;

[0031] Figure 3 yes Figure 1 Enlarged schematic diagram of part of the structure, from an axonometric view;

[0032] Figure 4 This is a flowchart of the control method for the detection equipment in this embodiment of the present invention.

[0033] Figure label:

[0034] 1-Booster to be tested; 11-Pedal lever fork; 21-Hydraulic sensor; 22-Hydraulic converter; 221-Cylinder; 222-Piston; 223-Return spring; 31-Pedal force output motor; 32-Push rod; 33-Connector; 34-Displacement sensor; 35-Pressure sensor; 41-Frame; 42-Fixing plate; 43-Connecting rod; 44-Guide plate; 45-Support plate; 45a-Support structure; 51-Pressure motor; 52-Slide carriage; 521-Horizontal plate; 53-Slide rail plate; 6-Automatic connector; 61-Signal adapter; 62-Connecting frame; 621-Upper end plate; 622-Vertical plate; 623-Lower end plate; 624-Reinforcing beam; 63-L-shaped frame; 631-Upper horizontal beam; 632-Vertical beam; 64-Electrical adapter; 71-First motor; 72-Second motor; 73-Third motor. Detailed Implementation

[0035] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0037] Please refer to Figures 1 to 4 , Figure 1 This is an axonometric view of the detection device in an embodiment of this utility model; Figure 2 yes Figure 1 A partially enlarged structural diagram, viewed from the front; Figure 3 yes Figure 1 Enlarged schematic diagram of part of the structure, from an axonometric view; Figure 4 This is a flowchart of the control method for the detection equipment in this embodiment of the present invention.

[0038] As shown in the figure, this application provides a booster testing device. The testing device in this application can test the booster motor and transmission components of the electronic master cylinder as a whole, thereby enabling a comprehensive and accurate test of the overall output capability of the booster.

[0039] The booster 1 has a booster motor and a transmission assembly connected by a drive. The booster motor can respond to a braking signal and output a rotational speed. The transmission assembly has a booster output end for transmitting boost to the outside. Specifically, in various embodiments of this application, the booster 1 has a booster motor and a transmission assembly connected by a drive. The transmission assembly can be a gear and rack transmission assembly or a ball screw transmission assembly, etc. The booster 1 itself is also equipped with a central controller, which can receive a braking signal, convert the braking signal into a rotational speed corresponding to the booster motor, and output a control signal to the booster motor so that the booster motor outputs the corresponding rotational speed, thereby driving the booster output end of the transmission assembly to output the corresponding displacement. The signal has different meanings in different types of boosters 1. In a booster 1 with a pedal, the brake signal is the displacement of the pedal lever fork 11. During braking, the driver presses the pedal, and the pedal and pedal lever fork 11 form a transmission connection. The pedal drives the pedal lever fork 11 to generate a displacement. The controller collects the displacement of the pedal lever fork 11 and controls the target motor to output the corresponding speed. The target motor outputs the corresponding hydraulic pressure to the vehicle's braking system through the transmission component. In a pure drive-by-wire booster 1 without a pedal, unlike the booster 1 with a pedal, the booster 1 does not have a pedal lever fork 11. Instead, the booster motor outputs the corresponding speed command in response to the driver's pedaling action through the hollow unit, thereby causing the booster 1 to output the corresponding hydraulic pressure.

[0040] In an embodiment of this application, a booster 1 testing device is provided, including a controller, a hydraulic sensor 21, a hydraulic converter 22, and a load simulation component. The load simulation component includes a brake pump and a load component, with the power output end of the brake pump being drivenly connected to the load component. The hydraulic converter 22 includes a cylinder 221 and a piston 222. The cylinder 221 has a cavity for containing liquid medium. One end of the piston 222 extends into the cylinder 221 and forms part of the cavity wall. The other end of the piston 222 is drivenly connected to the booster output end of the booster 1 to be tested. The cavity is connected to the brake pump through a pipeline, and the hydraulic sensor 21 is used to detect the hydraulic pressure in the cavity. When the piston 222 abuts against the booster output end, and the booster output end outputs a displacement outward, it can push the piston 222 into the cylinder 221, thereby reducing the volume of the cavity and increasing the hydraulic pressure in the cylinder 221. The brake pump and load component are used to simulate the vehicle's braking system. The load component is, for example, the brake shoe or brake caliper of the braking system. The brake pump and the chamber are hydraulically connected through pipelines. When the hydraulic pressure in the chamber increases, the hydraulic pressure in the brake pump also increases, thereby driving the piston 222 of the brake pump to move outward to apply thrust to the load component. By simulating the vehicle's braking system through the load simulation component, the accuracy of the booster 1 detection equipment is improved.

[0041] In a specific example, a rack is connected to the drive motor. The rack abuts against the piston 222. Driven by the drive motor, the rack outputs a displacement to push the piston 222 into the cylinder 221, increasing the hydraulic pressure inside the cavity. The liquid medium enters the brake pump, and the brake pump outputs force to the load component. The load component in this application is used to simulate the brake caliper or brake shoe of different vehicle braking systems. When testing different models of booster 1, different load components can be replaced according to different booster 1 models. In this implementation, the cylinder 221 is also connected to a hydraulic sensor 21. The hydraulic sensor 21 is used to output parameters that can characterize the hydraulic pressure inside the cylinder 221. The hydraulic sensor 21 can be a pressure sensor 35, a pressure transmitter, a flow sensor, or a flow meter, etc.

[0042] By employing the booster 1 testing device of this utility model, the output hydraulic value formed by the overall booster output of the booster 1 can be detected, avoiding the traditional technical solution that only detects the output of the booster motor while ignoring the influence of the transmission components on the overall output capability of the booster 1. This application provides a hydraulic converter 22 that can be connected to the booster output end, and detects the conversion of the mechanical force at the booster output end into hydraulic pressure by the hydraulic converter 22, thereby outputting a hydraulic value. This application also uses a hydraulic sensor 21 to detect the output hydraulic value to detect the overall booster output of the booster 1. At the same time, this application also provides a load simulation component simulating the braking system of a vehicle. The load simulation component is connected to the hydraulic converter 22, and the hydraulic output force of the hydraulic converter 22 is output to the load simulation component to simulate the working condition of the booster 1 outputting a hydraulic value to the vehicle's braking system in actual use. The booster 1 testing device of this utility model can comprehensively and accurately detect the overall output capability of the booster 1, so that the test results are consistent with the actual use of the booster 1.

[0043] Optionally, to simplify the drive, the hydraulic converter 22 also includes a return spring 223. One end of the return spring 223 is a fixed end, and the other end is a movable end, which is connected to the piston 222. When the piston 222 is pushed into the cylinder 221, the return spring 223 deforms. Thus, after the booster 1 stops providing power, the piston 222 returns to its original position under the action of the return spring 223.

[0044] In some optional embodiments, the booster 1 detection device further includes a pedal simulator, which simulates a driver's pedaling action to output a target displacement and drive the pedal fork 11 of the booster 1 to move. A controller is signal-connected to either the pedal simulator or the booster motor. When the controller is signal-connected to the booster motor of the booster 1, the controller sends a specified hydraulic target command to the booster motor. The pedal simulator includes a pedal force output motor 31 and a push rod 32 drivenly connected to the pedal force output motor 31. The push rod 32 directly or indirectly abuts against the pedal fork 11. The pedal force output motor 31 simulates the driver's pedaling action, causing the push rod 32 to output a corresponding displacement. Specifically, the controller sends a command to the pedal force output motor 31 to cause the push rod 32 to output the target displacement. Optionally, the controller can also be signal-connected to the central controller of the booster 1 to send a command to the central controller to cause the booster motor to output corresponding assistance. By adopting the method in this application, the testing equipment is compatible with pressure build-up testing of both pedal-equipped booster 1 and pure drive-by-wire booster 1, thereby improving the applicability of the testing equipment.

[0045] Optionally, the end of the push rod 32 connected to the pedal fork 11 is detachably connected to a connector 33. The surface of the connector 33 that abuts against the connecting arm is a conical surface recessed towards the side away from the pedal fork 11. That is, the connector 33 has a insertion hole with a conical wall. The insertion hole has a small-diameter orifice and a large-diameter orifice that are axially opposite each other. The large-diameter orifice is used to insert the pedal fork 11. During the test, the extension direction of the pedal fork 11 coincides with the central axis of the conical orifice wall and with the push-out and return directions of the push rod 32. In this way, the push rod 32 can push the pedal fork 11 out in a straight line, thereby driving the pedal fork 11 to achieve the target displacement, which serves as the input displacement of the booster 1.

[0046] This allows for switching between different models of connectors 33 for different models of boosters 1. By setting the surface of connector 33 that contacts pedal fork 11 as a conical surface, it can be adapted to pedal fork 11 of different sizes.

[0047] The foot pedal simulation device also includes a pressure sensor 35, which is used to detect the thrust of the push rod 32. The pressure sensor 35 is connected to the controller signal. By detecting the thrust of the push rod 32 through the pressure sensor 35, the thrust is used as the input force value of the booster 1, so that the controller can process and compare the input displacement (target displacement), the input force value, and the output hydraulic force value.

[0048] Optionally, the booster 1 testing equipment also includes an automatic connector 6, which includes a signal adapter 61 that can be plugged into the signal connector 33 of the booster 1. The controller can selectively connect to the booster motor via the signal adapter 61. By setting the automatic connector 6, the automatic plugging of the testing equipment into the corresponding connector 33 of the booster 1 can be realized, improving the automation level of the testing equipment.

[0049] The structure of the test equipment of this application will be described below with reference to a specific implementation method.

[0050] In this embodiment, the testing equipment includes a frame 41, which is used to fix components such as the booster 1, the foot pedal simulation component, the master cylinder simulation component, and the automatic connector 6.

[0051] In the height direction, the frame 41 is provided with a support plate 45 arranged in the horizontal direction. The support plate 45 is used to support the booster 1. The upper surface of the support plate 45 is provided with a support structure 45a. The top surface of the support structure 45a is threadedly connected to the booster 1. The space between the support structure 45a and the support plate 45 is used to accommodate the pedal fork 11.

[0052] A pedal simulation assembly is provided on the lower surface of the support plate 45. Specifically, the pedal force output motor 31 is fixedly connected to the lower surface of the support plate 45 through a fixing plate 42. The fixing plate 42 is parallel to the support plate 45, that is, the fixing plate 42 extends in the horizontal direction. Several connecting rods 43 are provided between the support plate 45 and the fixing plate 42, and the connecting rods 43 extend in the vertical direction. The pedal force output motor 31 is fixed on the lower surface of the fixing plate 42. The push rod 32 passes through the lower side of the fixing plate 42 to the upper side of the fixing plate 42 to directly or indirectly abut against the pedal lever fork 11. A guide plate 44 is also sleeved on the outside of the push rod 32. The guide plate 44 has a guide hole. The connecting rod 43 is inserted into the guide hole, and the guide plate 44 and the connecting rod 43 slide together. The guide plate 44 also extends in the horizontal direction. The push rod 32 can move in the extension direction of the guide rod, that is, move in the up and down direction in the figure. This direction of movement matches the direction of movement of the pedal lever fork 11 of the booster 1.

[0053] The push rod 32 is connected to the pedal output motor 31 by means of gear transmission, linkage transmission, worm gear transmission, synchronous belt transmission or lead screw transmission, etc.

[0054] In one alternative embodiment, the guide plate 44 has a through hole, through which the top end of the push rod 32 passes to the upper side of the guide plate 44. The top end of the push rod 32 is also provided with a limiting plate, the size of which is larger than the diameter of the through hole. The limiting plate presses against the upper surface of the guide plate 44 in the height direction and is welded to the guide plate 44. A limiting post is provided on the upper surface of the limiting plate, and the limiting post is coaxially arranged with the push rod 32. The limiting post protrudes from the limiting plate in the height direction. A pressure sensor 35 is sleeved on the outside of the limiting post. The pressure sensor 35 can be a capacitive sensor or the like. A connecting rod 43 is provided on the upper surface of the pressure sensor 35. One end of the connecting rod 43 abuts against the pressure sensor 35, and the other end is connected to a connector 33, which abuts against the pedal fork 11.

[0055] Meanwhile, a displacement detection device is also provided. The displacement monitoring device has a sensing end, which is a rod-shaped structure that extends along the height direction. One end of the sensing end is fixed to the fixing plate 42, and the other end is directly or indirectly fixed to the lower surface of the support plate 45. An adapter end is also provided on the push rod 32 to match the sensing end. As the push rod 32 moves a different distance, the adapter end matches the sensing end to detect the distance the push rod 32 moves in the height direction.

[0056] The pressure motor 51 is fixed on the upper side of the booster 1. The pressure motor 51 is connected to the controller signal and fixed on the frame 41. A slide rail is fixed on the frame 41 and extends along the height direction.

[0057] The carriage 52 is slidably fitted with the slide rail so that the carriage 52 can slide along the frame 41; the pressure motor 51 is driven by the carriage 52 to drive the carriage 52 to move up and down in the height direction; thus, the pressure motor 51 can be controlled by the controller to drive the carriage 52 to move, thereby driving the hydraulic conversion component 22 to abut against the power assist output end. As shown in the example, the frame 41 is provided with a slide rail plate 53, which is used to be set on the slide rail that is compatible with the carriage 52, and the slide rail extends in the height direction.

[0058] The carriage 52 includes a horizontally extending cross plate 521, with a cylinder 221 fixedly mounted on its upper surface. The cross plate 521 has a through hole through which the piston 222 passes. The hydraulic conversion component 22 also includes a return spring 223. One end of the return spring 223 is a fixed end, fixedly connected to a spring fixing structure, and the other end is a movable end, connected to the piston 222. When the piston 222 is pushed into the cylinder 221, the hydraulic pressure inside the cylinder 221 increases, and the return spring 223 is compressed, simulating the booster 1 being in operation. When the booster motor is not working, the return spring 223 pushes the piston 222 back, causing the piston 222 to extend out of the cylinder 221. At this time, the hydraulic pressure inside the cylinder 221 decreases, and the piston 222 further drives the transmission component to reverse the rotation of the booster motor, thus simulating the non-working state of the booster 1.

[0059] In an optional embodiment, an automatic connector 6 is also provided on the lower surface of the horizontal plate 521; the automatic connector 6 includes a Z-shaped connecting frame 62, one end of which is fixedly connected to the lower surface of the horizontal plate 521, and the other end is provided with a first motor 71. By providing a Z-shaped connecting frame 62, not only is the structural strength satisfied, but the first motor 71 is also located on the lower side of the horizontal plate 521 and is spaced apart from the booster 1 in the lateral direction, thereby forming sufficient operating space. Specifically, the Z-shaped structure includes an upper end plate 621, a lower end plate 623, and a vertical plate 622 connecting the upper end plate 621 and the lower end plate 623. The upper end plate 621 and the lower end plate 623 extend horizontally and are arranged in parallel. One end of the vertical plate 622 is connected to the rear side of the upper end plate 621, and the other end is connected to the front side of the lower end plate 623, thus forming a Z-shaped structure. A triangular reinforcing beam 624 is also provided between the upper surface of the lower end plate 623 and the vertical plate 622. The reinforcing beam follows the shape of the vertical plate 622 and the lower end plate 623. The output end of the first motor 71, located on the lower surface of the lower end plate 623, extends towards the side closest to the booster 1 and is connected to an L-shaped frame 63. The L-shaped frame 63 includes an upper crossbeam 631 and a vertical beam 632. The output end of the first motor 71 is connected to the vertical beam 632. The upper crossbeam 631 is fixedly connected to a second motor 72, and the vertical beam 632 is fixedly connected to a third motor 73. The output end of the second motor 72 is connected to an electrical adapter 64, which is used to plug into the electrical connector 33 of the booster 1. The output end of the third motor 73 is connected to a signal adapter 61, which is used to plug into the signal plug of the booster 1. The second motor 72 and the third motor 73 drive in opposite directions, thereby enabling the electrical adapter 64 and the signal adapter 61 to move in opposite directions to plug into the booster 1.

[0060] This application also provides a performance control method for booster 1, which is based on the aforementioned booster 1 detection device;

[0061] The performance control methods for booster 1 include:

[0062] s2. The hydraulic output value of the hydraulic converter 22 is collected through the hydraulic sensor 21;

[0063] s3. Process the output hydraulic value and compare the processing result with the set result to determine whether the processing result matches the set result. If they match, it is determined that the power output capability of the booster under test meets the requirements.

[0064] When testing the performance of booster 1, the rack outputs a set displacement to drive the piston 222 into the cylinder 221, compressing the volume of the cavity, increasing the hydraulic pressure, and allowing the liquid medium to enter the brake cylinder, which in turn drives the piston 222 in the brake cylinder to extend outward to output pressure to the load component. During this process, the hydraulic sensor 21 collects the hydraulic pressure in the cavity as the output hydraulic pressure value. The processor obtains the output hydraulic pressure value, processes it to form a processing result, and then compares the processing result with the set result to determine whether the booster 1 is qualified.

[0065] By using the booster 1 testing equipment in this utility model, the overall booster output of the booster 1 can be tested, avoiding the traditional technical solution that only tests the output of the booster motor and ignores the influence of the transmission components on the overall output capability of the booster 1.

[0066] Optionally, the booster 1 includes a booster motor, and the controller is connected to the booster motor via a signal. Prior to step s2, the following is also included:

[0067] s1a, Select to connect the controller to the assist motor signal and disconnect the controller from the pedal output motor 31; or,

[0068] s1b Select to disconnect the controller from the assist motor and connect the controller to the pedal output motor 31 signal.

[0069] In this step, two methods are provided for inputting power to the booster 1. In one embodiment, the controller is connected to the booster motor signal and disconnected from the pedal output motor 31; the controller sends commands directly or indirectly to the booster motor to cause the booster motor to output a corresponding speed to the transmission component, thereby driving the rack to output an outward displacement, which serves as the input displacement of the booster 1. This control method is for boosters 1 without a foot pedal connection (pedal lever 11).

[0070] In another embodiment, the controller does not send commands to the power assist motor. The controller is connected to the pedal output motor 31. The power assist 1 controls the speed output of the pedal output motor 31, thereby driving the push rod 32 to move, which in turn pushes the pedal fork 11 to move. The displacement of the pedal fork 11 can be adjusted according to the control logic of the power assist 1, so that the power assist motor outputs a set speed, and then outputs a hydraulic value through the hydraulic converter 22.

[0071] In this way, the applicability of the booster 1 detection device in this application is increased.

[0072] In some specific embodiments, the foot pedal simulator also includes a pressure sensor 35 and a displacement sensor 34 connected to the controller signal. The pressure sensor 35 is used to detect the thrust of the push rod 32 as the input force value, and the displacement sensor 34 is used to detect the displacement of the push rod 32 as the input displacement value.

[0073] When the controller is connected to the foot pedal simulation device, step s3 also includes:

[0074] s31. A curve is plotted based on the input displacement, input force, and output hydraulic pressure as the processing result. This allows for the testing of the performance of the power booster 1 equipped with the pedal fork 11.

[0075] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A booster testing device, characterized in that, It includes a controller, a hydraulic sensor (21), a hydraulic converter (22), and a load simulation component. The load simulation component includes a brake pump and a load component. The power output end of the brake pump is connected to the load component in a transmission manner. The hydraulic converter (22) includes a cylinder (221) and a piston (222), the cylinder (221) having a cavity for containing liquid medium, and the hydraulic sensor (21) for detecting the hydraulic pressure in the cavity; One end of the piston (222) extends into the cylinder (221) and forms part of the cavity wall. The other end of the piston (222) is used to drive the booster output end of the booster (1) to be tested. The cavity is connected to the brake pump through a pipeline.

2. The booster testing equipment according to claim 1, characterized in that, The hydraulic conversion component (22) also includes a return spring (223), which has a fixed end and a movable end. The fixed end is directly or indirectly connected to the cylinder (221), and the movable end is connected to the piston (222). When the piston (222) is pushed into the cylinder (221), the return spring (223) deforms.

3. The booster testing equipment according to claim 2, characterized in that, It also includes a foot pedal simulation component, which includes a pedal output motor (31) and a push rod (32) that is drivenly connected to the pedal output motor (31). The push rod (32) is used to directly or indirectly abut against the pedal fork (11) of the booster.

4. The booster testing equipment according to claim 3, characterized in that, The push rod (32) is connected to a connector (33) at one end that abuts against the pedal fork (11). The connector (33) has a insertion hole with a conical wall. The insertion hole has a small-diameter orifice and a large-diameter orifice that are axially opposite. The large-diameter orifice is used to insert the pedal fork (11).

5. The booster testing equipment according to claim 4, characterized in that, It also includes a guide plate (44), a frame (41), and a fixing plate (42) for mounting the pedal output motor (31). The fixing plate (42) is fixedly connected to the frame (41) via a connecting rod (43). The guide plate (44) is slidably engaged with the connecting rod (43), and the guide plate (44) is fixedly connected to the push rod (32).

6. The booster testing equipment according to claim 4, characterized in that, It also includes an automatic connector (6), which includes a signal adapter (61) for mating with the signal plug of the booster (1) to be tested; The signal adapter (61) can optionally form a signal connection with the controller.

7. The booster testing equipment according to claim 3, characterized in that, The foot pedal simulation device also includes a displacement sensor (34) and a pressure sensor (35). The displacement sensor (34) is used to monitor the output displacement of the push rod (32), and the pressure sensor (35) is used to detect the thrust of the push rod (32). The displacement sensor (34) and the pressure sensor (35) are connected to the controller signal.

8. The booster testing equipment according to any one of claims 3-7, characterized in that, The booster includes a booster motor, and the controller is connected to the booster motor via a signal connection.

9. The booster testing equipment according to claim 8, characterized in that, The foot pedal simulator also includes a pressure sensor (35) and a displacement sensor (34) connected to the controller signal. The pressure sensor (35) is used to detect the thrust of the push rod (32) as the input force value, and the displacement sensor (34) is used to detect the displacement of the push rod (32) as the input displacement value.

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