A device and system for completing high-low gear switching with a gear shifting robot

Abstract

The utility model discloses a device and system of cooperation gear changing robot completes high low gear switching, include: communication module, communication module is used to receive gear changing robot gear change signal, gear change signal includes downshift and upshift, solenoid valve, solenoid valve is two into one pneumatic solenoid valve, wherein, solenoid valve's air outlet end is used to be connected with the control end who has main auxiliary gearbox through trachea, solenoid valve control unit, solenoid valve control unit is used to control solenoid valve according to gear change signal. Through increasing solenoid valve, solenoid valve control unit on the vehicle of having high low gear, when needing high low gear change, control solenoid valve's air inlet port positive pressure switch, gear changing robot can realize high low gear switching, make robot can have the need of high low gear vehicle test.

Description

Technical Field

[0001] This utility model relates to the field of vehicle testing technology, and in particular to a device and system for switching between high and low gears in conjunction with a gear-shifting robot. Background Technology

[0002] The powertrain is a core component of commercial vehicles, playing a crucial role in the overall vehicle performance and quality. Powertrain bench performance testing is a key step in testing and evaluating major components such as the engine, transmission, and drive axle. By enhancing powertrain bench performance testing, the performance and reliability of the powertrain can be assessed more comprehensively and accurately.

[0003] When conducting bench tests on the entire vehicle powertrain, either human-driven or robot-driven tests can be used. Test results using human-driven tests show poor consistency, while test results using robot-driven tests show better consistency.

[0004] Vehicles with high and low gears require manual operation of a paddle shifter switch to switch between high and low gears due to gear reuse issues. Here, low gears refer to gears 1, 2, 3, and 4, while high gears refer to gears 5, 6, 7, and 8.

[0005] Because the shift lever switch needs to be manually operated before switching between high and low gears, the robot cannot perform high and low gear switching on vehicles with high and low gears when conducting driving tests, thus limiting the types of test vehicles that can be used when conducting tests with the robot. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of existing robots that cannot switch between high and low gears in vehicles with high and low gears, and to provide a device and system that works with a gear-shifting robot to complete the switching between high and low gears.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] The first aspect of this utility model provides a device for cooperating with a gear-shifting robot to complete high-low gear switching, comprising:

[0009] A communication module is used to receive gear shift signals from the gear shifting robot, including downshifting and upshifting signals.

[0010] The solenoid valve is a two-inlet, one-outlet pneumatic solenoid valve, wherein the outlet end of the solenoid valve is used to connect to the control end with the main and auxiliary gearboxes via an air pipe.

[0011] A solenoid valve control unit is used to control the solenoid valve according to the gear position change signal.

[0012] The second aspect of this utility model provides a system for switching between high and low gears in conjunction with a gear-shifting robot, comprising:

[0013] The device described in the first aspect, which works in conjunction with a gear-shifting robot to switch between high and low gears;

[0014] The vehicle under test includes an engine, a gearbox connected to the engine output shaft, and an engine control unit for controlling the engine and signal-connected to the communication module.

[0015] A gear-shifting robot is connected to the engine control unit and the communication module. The gear-shifting robot is used to determine the gear change signal based on the output signal of the engine control unit. The gear change signal includes downshifting and upshifting.

[0016] This utility model has the following advantages:

[0017] This solution adds a solenoid valve and a solenoid valve control unit to vehicles with high and low gears. When a change in high or low gear is required, the positive and negative pressure of the solenoid valve's air intake port is switched, allowing the gear-shifting robot to switch between high and low gears, thus enabling the robot to perform testing on vehicles with high and low gears. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the system of this utility model that works in conjunction with a gear-shifting robot to switch between high and low gears. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The first aspect of this invention provides a device for switching between high and low gears in conjunction with a gear-shifting robot, comprising a communication module, a solenoid valve, and a solenoid valve control unit. The communication module receives gear position change signals from the gear-shifting robot, including downshifting and upshifting. Upshifting refers to moving from gear 1, 2, 3, or 4 to gear 5, 6, 7, or 8, while downshifting refers to moving from gear 5, 6, 7, or 8 to gear 1, 2, 3, or 4. The solenoid valve is a two-inlet, one-outlet pneumatic solenoid valve. The outlet of the solenoid valve is connected to a control terminal with a main and auxiliary gearbox via an air pipe. One inlet of the solenoid valve is a negative pressure inlet, and the other is a positive pressure inlet. The solenoid valve control unit controls the solenoid valve according to the gear position change signals.

[0027] Preferably, the communication module is a CAN communication module.

[0028] Based on the above-described device, a second aspect of this invention provides a system for cooperating with a gear-shifting robot to complete high-low gear switching. This system includes the device described in the first aspect for cooperating with a gear-shifting robot to complete high-low gear switching, a vehicle under test, and a gear-shifting robot. The vehicle under test includes an engine, a gearbox connected to the engine output shaft, and an engine control unit for controlling the engine and signal-connected to the communication module. The gear-shifting robot is signal-connected to the engine control unit and the communication module. The gear-shifting robot is used to determine gear change signals based on the output signals of the engine control unit, and the gear change signals include downshifting and upshifting.

[0029] The gear-shifting robot determines the current gear based on signals from the engine control unit (ECU), using existing technology. It then determines whether a gear shift is necessary based on the current gear and the required gear information. If no shift is needed, the robot normally shifts between gears 1, 2, 3, and 4, or between gears 5, 6, 7, and 8. If a shift is required, the robot uses signals from the ECU, including vehicle speed, engine speed, and clutch opening, to determine if shifting conditions are met. If the conditions are met, the robot sends a downshift or upshift signal to the solenoid valve control unit. For upshifting, the solenoid valve control unit opens the negative pressure intake of the solenoid valve, shifting the transmission to a higher gear, allowing the robot to complete the upshift. For downshifting, the solenoid valve control unit opens the positive pressure intake of the solenoid valve, shifting the transmission to a lower gear, allowing the robot to complete the downshift.

[0030] By using the above-mentioned device and system, the existing paddle switches are replaced by solenoid valves, and solenoid valve control is implemented using a solenoid valve control unit, thereby effectively solving the problem of powertrain bench testing limitations for vehicles with high and low gear configurations.

[0031] The aforementioned device and system feature a split-structure design, which facilitates maintenance, reduces operating costs, improves testing efficiency and consistency of test results, and plays a crucial role in product development and verification.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for switching between high and low gears in conjunction with a gear-shifting robot, characterized in that, include: A communication module is used to receive gear shift signals from the gear shifting robot, including downshifting and upshifting signals. The solenoid valve is a two-inlet, one-outlet pneumatic solenoid valve, wherein the outlet end of the solenoid valve is used to connect to the control end with the main and auxiliary gearboxes via an air pipe. A solenoid valve control unit is used to control the solenoid valve according to the gear position change signal.

2. The device for switching between high and low gears in conjunction with a gear-shifting robot according to claim 1, characterized in that: The communication module is a CAN communication module.

3. A system for switching between high and low gears in conjunction with a gear-shifting robot, characterized in that, include: A device according to any one of claims 1 to 2 for switching between high and low gears in conjunction with a gear-shifting robot; The vehicle under test includes an engine, a gearbox connected to the engine output shaft, and an engine control unit for controlling the engine and signal-connected to the communication module. A gear-shifting robot is connected to the engine control unit and the communication module. The gear-shifting robot is used to determine the gear change signal based on the output signal of the engine control unit. The gear change signal includes downshifting and upshifting.

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