Wheel mileage test system
By designing a wheel mileage testing system, the problem of simulating the linear velocity environment of long-duration and large-scale maneuvering processes in existing technologies has been solved. This system enables performance testing of different models of odometers and features multi-channel pulse signal output and continuous high-speed rotation.
Patent Information
- Application Number
- CN202422911272.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing wheel mileage testing systems are unable to simulate the linear velocity environment during long-duration and large-scale maneuvers, and cannot effectively test the performance of different models of Hall effect and electronic odometers.
A wheel mileage testing system was designed, including a control host, a power drive unit, a mechanical device, an odometer, a signal distribution device, and a test host. The mechanical device is controlled and signal feedback is achieved through fiber optic and bus interfaces. A high-precision angular contact ball bearing and a brushless motor drive are used to simulate pulse output at different speeds, and the system supports the functional testing of multiple odometers.
It achieves linear motion environment simulation of long-endurance, wide-range maneuvering processes for different models of odometers, features multi-channel pulse signal output without attenuation, can detect the performance of multiple odometers, and has continuous, high-speed, and stable speed output.
Smart Images
Figure CN223525806U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of electromechanical equipment automatic test, specifically relates to a wheel mileage test system. BACKGROUND
[0002] The wheel mileage test system is a linear velocity environment simulation device of a certain semi-physical simulation system, and is mainly used for environmental excitation of linear velocity and mileage information of a mileage counter (Hall / electronic) in a carrier movement process. According to real-time vehicle driving tracks and road conditions sent by an upper computer, linear motion environments of a combined positioning and orientation device in a long navigation time standby and a wide range movement process are simulated, pulse outputs of the mileage counter (Hall / electronic) under different rotating speeds are realized, different movement speeds of the carrier are simulated, and simultaneously, the device can also be used as a test device for function and performance detection of different models of Hall mileage counters and electronic mileage counters. CONTENT OF THE UTILITY MODEL
[0003] The utility model can be used for simulating linear motion environments of a combined positioning and orientation device in a long navigation time standby and a wide range movement process, realizing pulse outputs of the mileage counter under different rotating speeds, and simultaneously, the system can also be used as a test device for function and performance detection of different models of Hall mileage counters and electronic mileage counters.
[0004] The utility model uses the scheme of a wheel mileage test system, which comprises a control host, a power drive unit, a mechanical device, a mileage counter, a signal distribution device and a test host. The control host is connected with the test host through a fiber interface and connected with the power drive unit through a bus interface, is used for receiving a test host linear motion environment simulation control instruction and reading position feedback information of the power drive unit, and calculates a drive signal of the power drive unit.
[0005] Further, the power drive unit is connected with the control host through a CAN or EtherCat bus interface, receives a drive signal of the control host and sends position feedback information, and is converted into a drive current or voltage signal, so as to drive the mechanical device to move and synchronously receive a position feedback signal in the mechanical device.
[0006] Further, the mechanical device comprises a main shaft, a left bearing set, a right bearing set, a brushless motor, an angle sensor, a left pulse gear, a right pulse gear, a left end cover, a right end cover, a base, a pedestal, an electronic mileage counter and a bearing platform of a Hall mileage counter; the main shaft is supported on the base through the left bearing set and the right bearing set.
[0007] Further, the left bearing set and the right bearing set are high-precision angular contact ball bearings, and adopt a back-to-back mounting mode.
[0008] Further, the brushless motor is installed in the middle of the main shaft for driving the whole shaft power; the angle sensor is installed on the left side of the left bearing set for collecting the angle position signal; the left and right pulse gears are installed on the left and right sides of the main shaft respectively, which are made of ferromagnetic material, and the outermost circle is uniformly distributed with a certain number of tooth grooves to provide pulse reference for the Hall odometer.
[0009] Further, the left and right end covers are fixed on the left and right sides of the base, each end cover is provided with four Hall odometer mounting holes one on the side surface, one electronic odometer mounting hole two is arranged at the center of the front surface of each end cover, and eight observation windows are uniformly distributed, so that the installation accuracy of the odometer can be confirmed; the Hall odometer is fixed on the four mounting holes one on the side surface of the left and right end covers, and is 1mm away from the tooth grooves of the left and right pulse gears; with the rotation of the gears, the corresponding pulse signals are output; the stator of the electronic odometer can be fixed on the mounting hole two at the center of the front surface of the left and right end covers, and the rotor is connected with the main shaft; with the rotation of the main shaft, the corresponding pulse signals are output; the base is installed on the upper surface of the base, and the power driving unit is installed in the base.
[0010] Further, the odometer is composed of the electronic odometer and the Hall odometer; the rotor part of the electronic odometer rotates with the main shaft, and outputs pulse signals to the signal distribution device; the Hall odometer outputs pulse signals to the signal distribution device.
[0011] Further, the signal distribution device is used for receiving 1-way electronic odometer and 1-way Hall odometer pulse signals respectively, and after increasing the driving capacity through a gate circuit, the signals are distributed into 8-way signals and sent to a test host or other system.
[0012] Further, the test host is used for receiving the pulse signals sent by the signal distribution device, and completing the function and performance detection of the odometer; the test host is connected with a control host through a fiber interface, and according to the real-time vehicle driving track and road conditions, the test host simulates different maneuvering speeds of the carrier and sends the signals to the control host.
[0013] The utility model has the advantages that (1) the utility model is a relatively complete semi-physical simulation system, which can provide a long-time, large-range linear motion simulation environment and a test platform for detecting index performance and environmental adaptability for different types of odometers; (2) at least four odometers (not less than two electronic odometers and Hall odometers) can be driven; (3) the signal distribution capability of the odometer is provided, and the multi-way pulse signals are output without attenuation; (4) the function of continuously outputting high-speed and stable rotating speed is provided. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 The utility model is a wheel mileage test system composition drawing.
[0015] Fig. 2 The mechanical device constitutes a diagram of the utility model.
[0016] Fig. 3 The mechanical device constitutes a diagram of the utility model.
[0017] The figure mark: electronic odometer (1); Left pulse gear (2); Hall odometer (3); Angle sensor (4); Left bearing group (5); Brushless motor (6); Main shaft (7); Right bearing group (8); Left end cover (9); Right pulse gear (10); Right end cover (11); Base (12); Mounting hole position one (13); Base (14); Mounting hole position two (15); Observation window (16); Control host computer (17); Power drive unit (18); Mechanical device (19; Odometer (20); Signal distribution device (21); Test host computer (22). DETAILED DESCRIPTION
[0018] The technical scheme provided by the utility model will be further described below in combination with the drawings and according to the specific embodiments.
[0019] As Figs. 1-3 shown, a kind of wheel mileage test system, including control host computer 17, power drive unit 18, mechanical device 19, odometer 20, signal distribution device 21, test host computer 22;The control host computer 17 is connected with test host computer 22 by optical fiber interface, and is connected with power drive unit 18 by bus interface, for receiving test host computer 22 line motion environment simulation control instruction, and reading the position feedback information of power drive unit 18, calculates the drive signal of power drive unit 18.
[0020] The power drive unit 18 is connected with control host computer 17 by CAN or EtherCat bus interface, receives the drive signal of control host computer 17 and sends position feedback information, and is converted into drive current or voltage signal, to drive mechanical device 19 movement, and synchronous receiving position feedback signal in mechanical device 19.
[0021] The mechanical device 19 includes a main shaft 7, a left bearing set 5, a right bearing set 8, a brushless motor 6, an angle sensor 4, a left pulse gear 2, a right pulse gear 10, a left end cover 9, a right end cover 11, a base 12, a base 14, an electronic odometer 1, a Hall odometer 3, and a bearing platform; the main shaft 7 is supported on the base 12 through the left bearing set 5 and the right bearing set 8; the left bearing set 5 and the right bearing set 8 are high-precision angular contact ball bearings, and are installed in a back-to-back manner; the brushless motor 6 is installed in the middle of the main shaft 7 and is used for driving the entire shaft system; the angle sensor 4 is installed on the left side of the left bearing set 5 and is used for collecting an angular position signal; the left pulse gear 2 and the right pulse gear 10 are installed on the left and right sides of the main shaft 7 respectively, are made of ferromagnetic material, and have a certain number of tooth grooves uniformly distributed on the outermost circle, thereby providing a pulse reference for the Hall odometer 3; the left end cover 9 and the right end cover 11 are fixed on the left and right sides of the base 12, each end cover is provided with four Hall odometer 3 installation hole positions one 13 on the side surface, and is provided with one electronic odometer 1 installation hole position two 15 in the center of the front surface and eight observation windows 16, thereby facilitating confirmation of the installation accuracy of the odometer 20; the Hall odometer 3 is fixed on the four installation hole positions one 13 on the side surface of the left end cover 9 and the right end cover 11, is 1mm away from the tooth grooves of the left pulse gear 2 and the right pulse gear 10, and outputs a corresponding pulse signal along with the rotation of the gears; the stator of the electronic odometer 1 is fixed on the installation hole position two 15 in the center of the front surface of the left end cover 9 and the right end cover 11, and the rotor is connected with the main shaft 7, thereby outputting a corresponding pulse signal along with the rotation of the main shaft 7; the base 12 is installed on the upper surface of the base 14, and the power driving unit 18 is installed in the inside of the base 14.
[0022] The odometer 20 is composed of the electronic odometer 1 and the Hall odometer 3, the rotor part of the electronic odometer 1 rotates along with the main shaft 7 and outputs a pulse signal to the signal distribution device 21; the Hall odometer 3 outputs a pulse signal to the signal distribution device 21; the signal distribution device 21 is used for receiving one-way pulse signals of the electronic odometer 1 and the Hall odometer 3 respectively, increasing the driving capacity through a gate circuit for each way, and then distributing the signals into eight-way signals and sending them to a test host 22 or other systems; the test host 22 is used for receiving the pulse signals sent by the signal distribution device 21, completing the function and performance detection of the odometer 20, and being connected with the control host 17 through a fiber interface, simulating different maneuvering speeds of a carrier according to real-time vehicle driving tracks and road conditions, and sending them to the control host 17.
Claims
1. A wheel mileage testing system, characterized by, It comprises a control host (17), a power drive unit (18), a mechanical device (19), an odometer (20), a signal distribution device (21), a test host (22); the control host (17) is connected with the test host (22) through an optical fiber interface, and is connected with the power drive unit (18) through a bus interface, used for receiving a linear motion environment simulation control instruction of the test host (22), reading position feedback information of the power drive unit (18), and calculating a drive signal of the power drive unit (18); The mechanical device (19) comprises a bearing platform of a main shaft (7), a left bearing set (5), a right bearing set (8), a brushless motor (6), an angle sensor (4), a left pulse gear (2), a right pulse gear (10), a left end cover (9), a right end cover (11), a base (12), a base (14), an electronic odometer (1), and a Hall odometer (3); the main shaft (7) is supported on the base (12) through the left bearing set (5) and the right bearing set (8).
2. A wheel mileage testing system according to claim 1, wherein The power drive unit (18) is connected with the control host (17) through a CAN or EtherCat bus interface, receives a drive signal of the control host (17) and sends position feedback information, and is converted into a drive current or voltage signal, so as to drive the mechanical device (19) to move and synchronously receive a position feedback signal in the mechanical device (19).
3. A wheel mileage testing system according to claim 1, wherein The left bearing set (5) and the right bearing set (8) are high-precision angular contact ball bearings, and are installed in a back-to-back manner.
4. A wheel mileage testing system according to claim 1, wherein The brushless motor (6) is installed in the middle of the main shaft (7) and is used for driving the whole shaft system; the angle sensor (4) is installed on the left side of the left bearing set (5) and is used for collecting an angular position signal; the left pulse gear (2) and the right pulse gear (10) are respectively installed on the left and right sides of the main shaft (7), are made of ferromagnetic material, and have a certain number of tooth grooves uniformly distributed on the outermost circle, so as to provide a pulse reference for the Hall odometer (3).
5. A wheel mileage testing system according to claim 1, wherein The left end cover (9) and the right end cover (11) are fixed on the left and right sides of the base (12), each end cover is provided with four Hall odometer (3) mounting hole positions one (13) on the side surface, and is provided with one electronic odometer (1) mounting hole position two (15) at the center of the front surface, and is uniformly provided with eight observation windows (16), so as to facilitate confirming the installation accuracy of the odometer (20); the Hall odometer (3) is fixed on the four mounting hole positions one (13) on the side surface of the left end cover (9) and the right end cover (11), is 1mm away from the tooth grooves of the left pulse gear (2) and the right pulse gear (10), and outputs corresponding pulse signals with the rotation of the gears; the stator of the electronic odometer (1) is fixed on the mounting hole position two (15) at the center of the front surface of the left end cover (9) and the right end cover (11), the rotor is connected with the main shaft (7), and outputs corresponding pulse signals with the rotation of the main shaft (7); the base (12) is installed on the upper surface of the base (14), and the power drive unit (18) is installed in the base (14).
6. A wheel mileage testing system according to claim 5, wherein The odometer (20) is composed of an electronic odometer (1) and a Hall odometer (3), the rotor part of the electronic odometer (1) rotates with the main shaft (7) and outputs a pulse signal to a signal distribution device (21); the Hall odometer (3) outputs a pulse signal to the signal distribution device (21).
7. A wheel mileage testing system according to claim 6, wherein The signal distribution device (21) is used for receiving pulse signals of 1 electronic odometer (1) and 1 Hall odometer (3) respectively, increasing driving capacity through a gate circuit for each channel, and then distributing the signals into 8 channels and sending to a test host (22).
8. A wheel mileage testing system according to claim 7, wherein The test host (22) is used for receiving the pulse signals sent by the signal distribution device (21) to complete function and performance detection of the odometer (20); and is connected with a control host (17) through an optical fiber interface, simulates different maneuvering speeds of a carrier according to real-time vehicle driving tracks and road conditions, and sends to the control host (17).