Drum brake performance detection method, system and related device of a drum brake device
A technology of a braking device and a detection method, which is applied in the field of vehicle control, can solve the problems of mechanical fatigue of brake oil and affect the performance of drum brakes, and achieve the effect of accurate drum brake performance.
Active Publication Date: 2020-05-01
ZHEJIANG GUOZI ROBOT TECH
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Problems solved by technology
During the daily use of the drum brake device, there is a problem that the brake fluid accumulates over time and the brake fluid will absorb the moisture in the air, resulting in the mechanical fatigue of the brake fluid, which will gradually affect the performance of the drum brake.
[0003] In the prior art, there is no definite detection method for the above-mentioned problem of mechanical fatigue of the brake fluid, and the user's personal experience is used to judge whether there is mechanical fatigue of the brake fluid, and there is no real-time monitoring of the drum brake performance of the drum brake device. Accurate Standards for Evaluation
Method used
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[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.
[0045] See below figure 1 , figure 1 This is a flowchart of a drum brake performance detection method of a drum brake device provided by an embodiment of this application.
[0046] Specific steps can include:
[0047] S101: When performing a braking operation, record the actual output torque and determine the actual position of the hydraulic push rod w...
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The invention discloses a method for detecting properties of a drum brake of a drum brake device. The method for detecting the properties of the drum brake comprises the following steps: recording output actual moment and determining the actual position of a hydraulic push rod during stress balance when braking operation is carried out; acquiring a standard position corresponding to the actual moment according to a moment position comparison table, wherein the moment position comparison table is a correspondence table of multiple different moments recorded when braking oil was injected last time and multiple standard positions of the hydraulic push rod during stress balancing; judging whether the value of deviation of the actual position to the standard positions is greater than a first preset value or not; and if the value of deviation of the actual position to the standard positions is greater than the first preset value, determining that the properties of the drum brake of the drumbrake device are reduced. The properties of the drum brake of the drum brake device can be evaluated accurately. The invention further discloses a brake drum property detecting system of the drum brake device, a computer readable storage medium and the drum brake device which have the foregoing beneficial effects.
Description
Technical field [0001] The invention relates to the technical field of vehicle control, in particular to a drum brake performance detection method and system of a drum brake device, a computer-readable storage medium and a drum brake device. Background technique [0002] The drum brake device is a device widely used in vehicle braking. Generally speaking, the drum brake device includes a brake base plate, a brake drum, a drum brake oil pump, an oil pump motor, and a servo driver that controls the rotation of the oil pump motor. The drum brake device controls the rotation of the oil pump motor through the servo drive, and then drives the oil pressure push rod of the drum brake oil pump to change the pressure in the drum brake oil pump to realize the brake operation. In the daily use of drum brake devices, there is a problem that the brake fluid accumulates over time and the brake fluid absorbs moisture in the air, causing mechanical fatigue of the brake fluid, which gradually affe...
Claims
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IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 黄衎澄管林波张国亮
Owner ZHEJIANG GUOZI ROBOT TECH