CN102922968A

CN102922968A - Air suspension alarm

Info

Publication number: CN102922968A
Application number: CN2012104897483A
Authority: CN
Inventors: 陈子邮; 马秋香; 李毅
Original assignee: Dongfeng Liuzhou Motor Co Ltd
Current assignee: Dongfeng Liuzhou Motor Co Ltd
Priority date: 2012-11-27
Filing date: 2012-11-27
Publication date: 2013-02-13
Anticipated expiration: 2032-11-27
Also published as: CN102922968B

Abstract

The invention discloses an air suspension alarm which comprises an air bag installed in an air suspension. The air bag is provided with an air pressure sensor which is electrically connected with an input end of a control chip of an alarm main machine arranged in a driving room; the input end of the control chip is also connected with a parking braking signal switch triggered by a manual braking mechanism; an output end of the control chip is connected with an indicating lamp and a buzzer electrically; when parking braking signals are generated, if the value of air pressure in the air bag, which is detected by the air pressure sensor, is greater than or equal to the pressure set value, the control chip simultaneously is connected with the indicating lamp and the buzzer; when the parking braking signals are not generated, if the value of air pressure in the air bag, which is detected by the air pressure sensor, is greater than or equal to the pressure set value, the control chip is only connected with the indicating lamp. Compared with the prior art, the air suspension alarm solves the problem that the overload of a vehicle which is provided with the air suspension but is not provided with the necessary air suspension alarm is difficult to detect.

Description

The air suspension annunciator

Technical field

The present invention relates to field of automobile, particularly a kind of air suspension annunciator for autotruck.

Background technology

Truck suspension on the market generally adopted the spring plate shock absorber in the past, at present increasing autotruck has adopted the air suspension shock absorber, autotruck has following advantage after adopting this air suspension: 1, air suspension rigidity is non-linear and can regulates, and adapts to different load demands.Natural frequency is constant, can obtain lower natural frequency, and riding comfort is good, and ride comfort prolongs vehicle life span, the destruction that alleviates the vehicle road pavement.2, the air suspension height is adjustable, can make vehicle certain altitude maintenance level, also can raise as required or reduce height.3, the air suspension quality is light.Air bellow unit mass energy storage capacity is high.4, the air bellow noise is low, effectively reduces the car load vibration, reduces driver fatigue, reduces parts fault rate etc.; Life-span is long, and air suspension is take air as working medium, and friction is minimum in the air, noise is low, its life-span depends primarily on rubber diaphragm, and the fatigue test life-span can reach (domestic is 3,000,000 times) 6,000,000 times, than 10 of spring plate～200,000 less important much longer (Durability Test).5, air bellow is safeguarded and is lacked, and use cost is low.

At present, before mostly only getting used to, drives by teamster the experience of spring plate shock absorber vehicle, judge by the height of observing the compartment whether vehicle overloads, but because air suspension keeps it highly substantially constant by adjusting its air pressure inside, during overload of vehicle, its height of wagon does not have significant change.In the past, because necessary air suspension overload alarm not being installed, teamster is continued to use the empirical method whether vehicle overloads of judging in the past, often overload is driven, thereby cause the gaseous tension in the air bag of described air suspension too high for a long time, light then service life of greatly reducing described air suspension, may cause it when serious and break and directly affect traffic safety.

Summary of the invention

The invention provides a kind of air suspension annunciator, it can solve the problem that overload of vehicle that air suspension is housed should not be discovered.

In order to address the above problem, the technical solution adopted in the present invention is: this air suspension annunciator, comprise the air bag that is contained in the air suspension, at described air bag a baroceptor is housed, described baroceptor is electrically connected with the input end of control chip of alarm host machine in being arranged on operator's compartment by wire, the input end of described control chip also is connected with a parking brake signals switch that is touched by handbrake mechanism, and the mouth of described control chip is electrically connected with respectively an indicator lamp and a buzzer phone.

In the technique scheme, technical scheme can be more specifically: described control chip is for detection of the parking brake signals of its input end and the air pressure signal of baroceptor, when parking brake signals is arranged, atmospheric pressure value in the described air bag that detects of baroceptor is more than or equal to pressure set points as described, and control chip is connected described indicator lamp and buzzer phone simultaneously; When without parking brake signals, the atmospheric pressure value in the described air bag that detects of baroceptor is more than or equal to pressure set points as described, and described control chip is only connected described indicator lamp.

Because adopt technique scheme, the present invention compared with prior art has following beneficial effect:

1, the present invention has effectively reduced the overload of vehicle phenomenon by the mode of sound and light alarm.

2, the present invention is simple in structure, reliable operation.

Description of drawings

Fig. 1 is structural representation of the present invention.

The specific embodiment

The invention will be further described below in conjunction with accompanying drawing embodiment:

Air suspension annunciator shown in Figure 1, include air suspension with and inner air bag, baroceptor, control chip, the formations such as indicator lamp and buzzer phone.Air bag has two, be respectively right air bag 1A and left air bag 1B, baroceptor has two, be respectively right baroceptor 2A and left baroceptor 2B, indicator lamp has two, be respectively right indicating lamp 6A and left indicator lamp 6B, buzzer phone also has two, is respectively right buzzer phone 7A and left buzzer phone 7B.At right air bag 1A a right baroceptor 2A is housed, at left air bag 1B a left baroceptor 2B is housed, a parking brake signals switch 3 is housed at the hand brake lever place; Right baroceptor 2A, left baroceptor 2B and parking brake signals switch 3 are micro controller system by wire with the control chip 5(of alarm host machine 4 in being arranged on operator's compartment all) input end 51 be electrically connected, the mouth 52 of control chip 5 is electrically connected with respectively a right indicating lamp 6A, left indicator lamp 6B, a right buzzer phone 7A and a left buzzer phone 7B.

The control method of control chip is as follows: whether control chip 5 at first detects its input end 51 the parking brake signals input;

A: parking brake signals is arranged, the expression vehicle now is in Parking (loading of namely stopping) state, under this state, when control chip detects air pressure in the right air bag 1A more than or equal to setting value namely during 0.75 MPa by right baroceptor 2A, control chip 5 is connected right indicating lamp 6A and right buzzer phone 7A simultaneously, carry out the overload warning prompting of right air bag 1A, when this air pressure is lower than setting value namely during 0.75 MPa, control chip 5 disconnects right indicating lamp 6A and right buzzer phone 7A simultaneously, stops this overload warning prompting; When control chip detects air pressure in the left air bag 1B more than or equal to setting value namely during 0.75 MPa by left baroceptor 2B, control chip 5 is connected left indicator lamp 6B and left buzzer phone 7B simultaneously, carry out the overload warning prompting of left air bag 1B, when this air pressure is lower than setting value namely during 0.75 MPa, control chip 5 disconnects left indicator lamp 6B and left buzzer phone 7B simultaneously, stops this overload warning prompting.

B: without parking brake signals, the expression vehicle now is in motoring condition, under this state, when control chip detects air pressure in the right air bag 1A more than or equal to setting value namely during 0.75 MPa by right baroceptor 2A, 5 of control chips are connected right indicating lamp 6A, carry out the overload warning prompting of travelling of right air bag 1A, when this air pressure is lower than setting value namely during 0.75 MPa, control chip 5 disconnects right indicating lamp 6A, stops this overload warning prompting of travelling; When control chip detects air pressure in the left air bag 1B more than or equal to setting value namely during 0.75 MPa by left baroceptor 2B, 5 of control chips are connected left indicator lamp 6B, carry out the overload warning prompting of travelling of left air bag 1B, when this air pressure is lower than setting value namely during 0.75 MPa, control chip 5 disconnects left indicator lamp 6B, stops this overload warning prompting of travelling.

Claims

1. air suspension annunciator, it is characterized in that: comprise the air bag that is contained in the air suspension, at described air bag a baroceptor is housed, described baroceptor is electrically connected with the input end of control chip of alarm host machine in being arranged on operator's compartment by wire, the input end of described control chip also is connected with a parking brake signals switch that is touched by handbrake mechanism, and the mouth of described control chip is electrically connected with respectively an indicator lamp and a buzzer phone.

2. air suspension annunciator according to claim 1, it is characterized in that: described control chip is for detection of the parking brake signals of its input end and the air pressure signal of baroceptor, when parking brake signals is arranged, atmospheric pressure value in the described air bag that detects of baroceptor is more than or equal to pressure set points as described, and control chip is connected described indicator lamp and buzzer phone simultaneously; When without parking brake signals, the atmospheric pressure value in the described air bag that detects of baroceptor is more than or equal to pressure set points as described, and described control chip is only connected described indicator lamp.