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Three-level wheel speed sensor testing system and method based on braking process

A wheel speed sensor and testing system technology, applied in the testing/calibration of speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, instruments, etc., to achieve the effect of improving safety

Active Publication Date: 2018-10-19
灌云杰达电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] The technical problem to be solved by the present invention is to provide a three-level wheel speed sensor testing system based on the braking process to solve the problem of the new generation of automobile wheel speed sensors, namely the three-level active wheel speed sensor. Dynamic detection of sensor change signals during braking and analysis of sensor quality

Method used

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  • Three-level wheel speed sensor testing system and method based on braking process
  • Three-level wheel speed sensor testing system and method based on braking process
  • Three-level wheel speed sensor testing system and method based on braking process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1, a kind of three-level wheel speed sensor test system based on the braking process, such as figure 1 As shown, it includes a console 10, a computer 1, an input module 2, a PLC module 3, a spindle motor module 4, a two-dimensional mobile platform module 5, a braking module 6, a sensor module 7, an acquisition module 8 and a DC stabilized power supply 9.

[0042] Computer 1 is the core of the test system and the host of the software system. As the central control unit of the three-level wheel speed sensor test system based on the braking process, it connects to the PLC module 3 through the serial port and sends control instructions to the PLC module 3 to make the system follow the The set running process parameters run.

[0043] Simultaneously, computer 1 connects acquisition module 8, collects the signal of three-level wheel speed sensor 71 by controlling acquisition card 81 or oscilloscope 82, transmits in the computer 1, measures and analyzes the signal co...

Embodiment 2

[0055] Embodiment 2, a kind of testing method of the three-level wheel speed sensor testing system based on the braking process, the testing method sends commands to the PLC module 3 through the computer 1 and the input module 2, and the PLC module 3 outputs signals to control the main shaft motor module 4, two Dimensional mobile platform module 5 and braking module 6 work in harmony according to the set procedure.

[0056]The output signal of the PLC module 3 controls the braking module 6 in the spindle motor module 4 to receive the braking command from the PLC module 3, execute system braking, the hydraulic pump 61 operates, and the hydraulic oil circuit system 62 drives the brake caliper 63 to operate to perform the braking process. When the brake caliper 63 acts, the brake switch 66 is actuated to send a braking signal to the wheel speed sensor 71, and the output signal of the wheel speed sensor 71 appears to reflect the parameter information of braking. That is, the spind...

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Abstract

The invention discloses a braking process-based three-electric level wheel speed sensor test system. The braking process-based three-electric level wheel speed sensor test system includes a control console, a computer, an input module, a PLC module, a spindle motor module, a two-dimensional mobile platform module, a brake module, a sensor module, an acquisition module and a direct-current voltage stabilized power source. The invention also discloses a test method using the above test system. With the system of the invention adopted, dynamic detection of sensor change signals and analysis on sensor quality in a braking process are realized; forward-rotation and reverse-rotation direction parameter detection and braking parameter detection of the signals of a three-electric level active type wheel speed sensor can be realized; the discrimination of the strength parameters of the signals of the sensor is realized; adjustment of the size of an air gap between the sensor and a gear is realized; the size of the air gap between the sensor and the gear is judged through detecting the signals of the sensor; the performance of the senor is comprehensively detected automatically through analyzing a braking parameter information parameter and forward-rotation and reverse-rotation direction parameters under a manual or automatic condition; and the safety of the operation of a vehicle can be improved.

Description

technical field [0001] The invention belongs to the field of testing automobile wheel speed sensors, and in particular relates to a testing system and testing method for a three-level active wheel speed sensor used in the braking process of automobile ABS. Background technique [0002] The wheel speed sensor is an important part of the ABS system, which plays a very important role in ensuring the safe driving of the car. With the improvement of people's living standards, people's requirements for the safety and comfort of cars are getting higher and higher. In order to effectively improve the braking efficiency and safety of cars, it is common Both are equipped with anti-lock braking ABS system. The wheel speed sensor with continuously improved performance is constantly updated, and the three-level wheel speed sensor representing the next generation of active wheel speed sensor has received more and more attention and application. [0003] There are three types of existing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P21/02
CPCG01P21/02
Inventor 田锦明张军谢春旭徐致远纪林海张晗霞
Owner 灌云杰达电子有限公司