Automobile brake air pump air pressure monitoring system and method
A technology of brake air pump and air pressure monitoring, applied in the direction of brake safety system, etc., can solve the problems of frequent alarms and the increase of the cumulative number of faults, and achieve the effect of avoiding the accumulation of faults.
Active Publication Date: 2014-10-29
BEIQI FOTON MOTOR CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a brake air pump air pressure monitoring system and method for automobiles, so as to solve the problem that the cumulative number of faults of the brake air pump air pressure value in the prior art has repeatedly increased unnecessarily
[0005] Another object of the present invention is to provide a brake air pump air pressure monitoring system and method for automobiles, so as to solve the problem of unrestricted increase in the cumulative number of faults and frequent alarms caused by the prior art
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[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0017] figure 1 and figure 2 Respectively schematically show the preferred embodiments of the automobile brake air pump air pressure monitoring system and method of the present invention, in order to describe the present invention clearly and concisely, the following will combine figure 1 , figure 2 , the preferred embodiments of the automobile brake air pump air pressure monitoring system and method of the present invention are simultaneously described.
[0018] figure 1 The preferred embodiment of the system shown is suitable for a brake air pump control device of an automobile, figure 2 In a preferred embodiment of the method shown, the brake air pump air pressure acquisition unit 1 is configured to perform step S101: acquire the brake air pump air pressure.
[0019] The brake air pump air pressure value acquisition unit 1 ...
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The invention discloses an air pressure monitoring system and an air pressure monitoring method for a brake compressor for an automobile. The air pressure monitoring method comprises the following steps of: acquiring an air pressure value of the brake compressor, wherein when the air pressure value of the brake compressor is smaller than the lower limit of a critical air pressure value, making the failure accumulating frequency value be a sum of an initial failure accumulating frequency value and 1, if the air pressure value of the brake compressor is greater than the upper limit of the critical air pressure value, continuously judging whether the initial failure accumulating frequency value is more than zero, if the initial failure accumulating frequency value is more than zero, making the failure accumulating frequency value be a difference of the initial failure accumulating frequency value and 1, and if the failure accumulating frequency value is equal to zero, the initial failure accumulating frequency value is equal to zero; when the air pressure value of the brake compressor is between the upper limit and the lower limit of the critical air pressure value, judging whether an initial alarm signal exists, if so, making the failure accumulating frequency value be a sum of the initial failure accumulating frequency value and 1, otherwise, making the failure accumulating frequency value be equal to the initial failure accumulating frequency value; outputting the failure accumulating frequency value; and if the failure accumulating frequency value is more than zero, giving an alarm, otherwise, not giving an alarm. By the air pressure monitoring system and the air pressure monitoring method, unnecessary failure accumulating is avoided when the air pressure of the brake compressor fluctuates around a fixed limit value.
Description
technical field [0001] The invention relates to the technical field of brake air pump control for automobiles, in particular to an air pressure monitoring system and method for brake air pumps for automobiles. Background technique [0002] In the process of driving, in order to ensure the safety of braking, the brake air pump must always ensure sufficient brake air pressure. When the air pressure of the brake air pump is less than a set value, an alarm is required to remind the driver that the air pressure of the brake air pump is insufficient. . At present, before the alarm, the set value used as the comparison object of the brake air pump air pressure value is a fixed limit value. When the brake air pump air pressure value fluctuates around the fixed limit value, it will lead to an unnecessary increase in the cumulative number of faults. [0003] In addition, there is a defect that the cumulative number of faults increases without limit, which causes unnecessary frequent ...
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IPC IPC(8): B60T17/22
Inventor 王婷孟涛邹海斌韩斌段艳晓王轶
Owner BEIQI FOTON MOTOR CO LTD