Method for processing and analyzing test data of hydraulic retarder

Abstract

The invention provides a hydraulic retarder test data processing and analyzing method. The method comprises the steps that test data in the test process of a hydraulic retarder are collected in real time; the onset time, the maximum braking power and the braking temperature rise are calculated; respectively drawing test data curves of the dynamic test and the air loss test; and adjusting the resolution of the test data curve and then storing the test data curve. Based on existing data acquisition software, the test data automatic analysis function is achieved, trial data are convenient to store and manage, the research and development period and cost of the hydraulic retarder can be greatly shortened, and the research and development efficiency is improved. Design capability support and key technology reserve can be provided for improving the technical performance of a hydraulic deceleration system and designing and developing a hydraulic deceleration technology which adapts to high power, low air loss and rapid effect of a novel tracked vehicle, and then improvement of the braking performance and maneuverability of the vehicle and the reliability of a combined braking system is promoted.

Description

technical field

[0001] The invention belongs to the technical field of vehicle transmission experiments, in particular to a method for processing and analyzing test data of a hydraulic reducer. Background technique

[0002] The high-power hydraulic retarder is the main body of the high-speed braking of the tracked vehicle. Due to the complex working conditions and many influencing factors of the hydraulic retarder, each type of retarder needs to be developed for each working condition. A large number of tests and studies are required, and continuous feedback is required. Optimize and re-test until the technical requirements are met. After the product is finalized, it is also necessary to conduct a basic performance test before leaving the factory to evaluate whether the product meets the technical performance requirements. After each test, there is a large amount of test data that needs to be processed and analyzed, and only when the technical requirements are met can it le...

Examples

Embodiment Construction

[0021] In order to make the purpose, content and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0022] This embodiment proposes a method for processing and analyzing test data of a hydraulic retarder, and the method includes the following steps:

[0023] S1. Real-time collection of test data during the test of the hydraulic reducer

[0024] The test data includes the rotational speed of the hydraulic reducer pump wheel, the braking torque, the inlet oil temperature of the hydraulic reducer, the outlet oil temperature of the hydraulic reducer, the pressure of the pressure tank, the pressure of the upper chamber of the back pressure valve, and the inlet pressure of the reducer. Among them, the test data is automatically intercepted 0.1 seconds before the occurrence of the braking signal, and the interception ends when the torque...

technical field

[0001] The invention belongs to the technical field of vehicle transmission experiments, in particular to a method for processing and analyzing test data of a hydraulic reducer. Background technique

[0002] The high-power hydraulic retarder is the main body of the high-speed braking of the tracked vehicle. Due to the complex working conditions and many influencing factors of the hydraulic retarder, each type of retarder needs to be developed for each working condition. A large number of tests and studies are required, and continuous feedback is required. Optimize and re-test until the technical requirements are met. After the product is finalized, it is also necessary to conduct a basic performance test before leaving the factory to evaluate whether the product meets the technical performance requirements. After each test, there is a large amount of test data that needs to be processed and analyzed, and only when the technical requirements are met can it le...

Examples

Embodiment Construction

[0021] In order to make the purpose, content and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0022] This embodiment proposes a method for processing and analyzing test data of a hydraulic retarder, and the method includes the following steps:

[0023] S1. Real-time collection of test data during the test of the hydraulic reducer

[0024] The test data includes the rotational speed of the hydraulic reducer pump wheel, the braking torque, the inlet oil temperature of the hydraulic reducer, the outlet oil temperature of the hydraulic reducer, the pressure of the pressure tank, the pressure of the upper chamber of the back pressure valve, and the inlet pressure of the reducer. Among them, the test data is automatically intercepted 0.1 seconds before the occurrence of the braking signal, and the interception ends when the torque...

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