Testing device and method for automatic parking system

A technology for automatic parking and system testing, which is used in measurement devices, vehicle testing, and machine/structural component testing.

Active Publication Date: 2014-12-03
WUHU LION AUTOMOTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the automatic parking system is tested directly with a real vehicle, it will not only cause a huge waste of cost, but also a huge waste of time, and cannot quickly complete the system parking trajectory algorithm (also known as the parking space recognition algorithm) purpose of verification and system performance optimization
In addition, parking space recognition, especially the calculation of the length of the parking space, is crucial to the calculation of the key parking area of ​​the automatic parking system, and the key parking area determines the final parking position of the car. The te

Method used

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  • Testing device and method for automatic parking system
  • Testing device and method for automatic parking system
  • Testing device and method for automatic parking system

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Embodiment 1

[0038] Such as figure 1 As shown, the present embodiment provides a test device for an automatic parking system, which includes a display unit, an acquisition unit, a prompt unit, a parking controller, a power supply and a test bench ( figure 1 not shown). Here, the parking controller is a controller to be tested. As the main controller of the automatic parking system, it can obtain the pulse signals emitted by the wheel speed sensor and the ultrasonic sensor of the automatic parking system in real time, and can The pulse signal is analyzed, processed and filtered, and if necessary, it needs to be processed by a specific algorithm and logic strategy to obtain useful information and data. Since the parking controller belongs to an existing product, this embodiment no longer discusses its structure and functions. Describe in detail; the power supply is used to supply power to the display unit, the parking controller, and the wheel speed sensor and the ultrasonic sensor of the a...

Embodiment 2

[0050] This embodiment provides the test method applied to the automatic parking system test device described in embodiment 1, such as Figure 4 As shown, this test usage can be used to verify the accuracy of the parking space recognition algorithm and calibrate the parking space compensation algorithm, including the following steps:

[0051] S101. Record the actual size value of the parking space and various working mode modes in the parking controller, make the test bench simulate the car in different parking mode modes in turn, and each test bench is in a parking mode mode Next, the parking controller uses its built-in parking space recognition algorithm to find a parking space, and obtains the pulse signals output by the ultrasonic sensor and the wheel speed sensor in real time, and processes the obtained pulse signals to obtain the distance between the ultrasonic sensor and obstacles (including targets). Vehicles) between the lateral distance value and the moving distance...

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Abstract

The invention provides a testing device for an automatic parking system. The testing device comprises a parking controller and a test-bench, wherein the parking controller as the main controller of the automatic parking system is placed on the test-bench; a wheel is arranged at the lower part of the test-bench; a wheel speed sensor is arranged on the wheel shaft of the wheel; an ultrasonic wave sensor is arranged on at least one side surface parallel to the test-bench in the moving direction of the test-bench; the wheel speed sensor and the ultrasonic wave sensor are electrically connected with the parking controller; a parking space recognition algorithm, a parking space compensation algorithm, a parking space actual size and various working condition patterns are built in the parking controller used for verifying the accuracy of the parking space recognition algorithm and standardizing the parking space compensation algorithm when the test-bench simulates various parking working condition patterns of automobiles. Correspondingly, the invention provides a testing method applied in the testing device. According to the invention, the testing device for the automatic parking system and the testing method applied in the testing device are low in cost and short in testing time, and can simulate various parking working condition patterns.

Description

technical field [0001] The invention relates to the technical field of automobile active safety, in particular to an automatic parking system test device and a test method. Background technique [0002] With the increase of domestic car ownership, the number of novice drivers is gradually increasing, and the number of parking spaces on both sides of the road is also becoming increasingly tense. Therefore, it is very necessary to make full use of the parking space, which leads to a relatively compact parking space. However, the compact parking space is a big challenge for novice drivers. How to park the car safely in a short time and with few steps is a problem that many novice drivers will encounter. [0003] In order to solve the above problems, the automatic parking technology of automobiles emerges at the historic moment. Moreover, with the rapid development of automotive electronics, the reduction of automatic parking costs and the improvement of electronic control tech...

Claims

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Application Information

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IPC IPC(8): B60W30/06G01M17/007
CPCG01M17/007
Inventor 李娟娟周俊杰陈军
Owner WUHU LION AUTOMOTIVE TECH CO LTD
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