Braking system applied to hardware-in-loop HiL test

A braking system and hardware technology, applied in the testing of machine/structural components, vehicle testing, measuring devices, etc., can solve the problems of difficult to accurately control system pressure, difficult to maintain system pressure stably, difficult to obtain brake pressure, etc. , to achieve the effect of improving test efficiency and ease of use

Pending Publication Date: 2022-07-15
SAIC VOLKSWAGEN AUTOMOTIVE CO LTD
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Problems solved by technology

One problem with the existing solution is that it is difficult to obtain greater brake pressure. Generally speaking, the pressure limit of the brake pedal with the right foot is about 120bar, which cannot continue to increase the brake pressure; another problem is that it is difficult to accurately control the system pressure. It is difficult to maintain the system pressure stably, and during the pressure maintenance process, the test engineer cannot perform other test operations, which requires the cooperation of multiple people

Method used

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  • Braking system applied to hardware-in-loop HiL test
  • Braking system applied to hardware-in-loop HiL test
  • Braking system applied to hardware-in-loop HiL test

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Embodiment Construction

[0049] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict.

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way limits the application, its application, or uses in any way. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

[0051] It should be noted that the terminology used herein is for the purpose of describing specific embodi...

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Abstract

The invention provides a braking system applied to a hardware-in-loop HiL test. The brake system comprises a first brake master cylinder and a second brake master cylinder, the first brake master cylinder comprises a first cavity and a second cavity, and the second brake master cylinder comprises a third cavity and a fourth cavity; the brake pedal is connected with a piston of the second brake master cylinder; a first connecting pipeline and a second connecting pipeline, and a pressure sensor is arranged on the first connecting pipeline and used for acquiring the pressure of the braking system; the first one-way valve and the second one-way valve are respectively arranged on the first connecting pipeline and the second connecting pipeline; and the pressure mechanism is connected with the piston of the first brake master cylinder, and the pressure mechanism is used for driving the piston of the first brake master cylinder to move and can keep the position of the piston of the first brake master cylinder. The brake system applied to the hardware-in-the-loop HiL test can adapt to various test working conditions, obtain larger brake pressure, accurately control system pressure or maintain system pressure, is convenient to use, and improves test efficiency.

Description

technical field [0001] The invention relates to the technical field of vehicle testing, in particular to a braking system applied to hardware-in-the-loop HiL testing. Background technique [0002] In the development process of automotive chassis electronic components, the hardware-in-the-loop HiL test equipment can greatly simplify the required hardware environment and provide accurate test results. It is an indispensable device for the development and testing of component functions. In the hardware-in-the-loop test, different test items put forward different requirements for the braking system, such as greater pressure build-up capacity, more precise pressure control, more stable pressure maintenance, and more in line with the original car's brake pedal feel, etc. , has become a technical problem that needs to be solved urgently. [0003] Currently known HiL measurement equipment and other braking system designs adopt the solution of a single master cylinder braking system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 刘志强陈阳彭辉魏宏
Owner SAIC VOLKSWAGEN AUTOMOTIVE CO LTD
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