CN112498318A - Gas-electric hybrid braking system - Google Patents

Gas-electric hybrid braking system Download PDF

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Publication number
CN112498318A
CN112498318A CN202011476551.7A CN202011476551A CN112498318A CN 112498318 A CN112498318 A CN 112498318A CN 202011476551 A CN202011476551 A CN 202011476551A CN 112498318 A CN112498318 A CN 112498318A
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CN
China
Prior art keywords
valve
control unit
electronic control
output end
gas
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Application number
CN202011476551.7A
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Chinese (zh)
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CN112498318B (en
Inventor
徐凌飞
于锋
姜琦菲
盛明
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Anhui Ankai Automobile Co Ltd
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Anhui Ankai Automobile Co Ltd
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Priority to CN202011476551.7A priority Critical patent/CN112498318B/en
Publication of CN112498318A publication Critical patent/CN112498318A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66Electrical control in fluid-pressure brake systems
    • B60T13/68Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/683Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/44Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
    • B60Q1/441Electric switches operable by the driver's pedals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive

Abstract

The invention discloses a gas-electric hybrid braking system, which comprises a control switch, an electronic control unit, a foot valve, an air storage cylinder, a pressure limiting valve, a solenoid valve, a two-position three-way valve, a first sensor, a second sensor, a running brake lamp, a parking brake lamp and an accelerator, the output end of the air cylinder is connected with the input end of the pressure limiting valve through an air pipeline, the output end of the limiting valve is connected with the input end of the electromagnetic valve through an air pipeline, the output end of the electromagnetic valve is connected with the input end of the two-position three-way valve through an air pipeline, one interface of the output end of the two-position three-way valve is connected with the input end of the foot valve through an air pipeline, the other interface of the output end of the two-position three-way valve is connected with the front axle through a gas path pipeline, and the foot valve is connected with the rear axle.

Description

Gas-electric hybrid braking system
Technical Field
The invention belongs to the technical field of brake systems, and particularly relates to a gas-electric hybrid brake system.
Background
Currently, pneumatic brake systems are widely used in commercial vehicles. Pneumatic braking systems have their own advantages: 1. larger braking force can be generated; 2. the pipeline has simple structure and convenient connection and disconnection. The conventional pneumatic brake system has a disadvantage in that a brake response time is long due to its own structure. Along with the increase of the length of the whole vehicle, the influence brought by the increase of the braking response time and the increase of the corresponding time difference of braking of each shaft is more and more obvious.
At present, a common solution is to add a relay valve, a quick release valve, a trailer valve and other devices in an air pipeline to advance the braking response, for example, patent application No. CN2017100343383.8 discloses a pneumatic and electric hybrid control braking system of a rubber-tyred train, which comprises an air storage cylinder, an electric control brake master valve, an emergency relay valve, a proportional relay valve, a service brake air chamber, a brake and an electronic control unit; the electric control brake master valve is used for supplying an air source in the air storage cylinder to the emergency relay valve, the emergency relay valve is used for distributing the air source to the proportional relay valve, the proportional relay valve is used for distributing the air source to the service brake air chamber, and the service brake air chamber is used for braking or releasing braking of the brake under the action of compressed air; the electric control brake master valve is electrically connected with the electronic control unit and provides a brake electric signal for the electronic control unit; the electronic control unit is electrically connected with the proportional relay valve to control the on and off of the proportional relay valve, and the brake system has the characteristics of high response speed and good stability, but the conventional brake system still needs a driver to step on a foot valve in the braking process, so that the operation is very inconvenient, and the fatigue of the driver is accelerated.
Disclosure of Invention
The present invention is directed to a hybrid pneumatic-electric brake system, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a gas-electricity hybrid brake system comprises a control switch, an electronic control unit, a foot valve, an air reservoir, a pressure limiting valve, a solenoid valve, a two-position three-way valve, a first sensor, a second sensor, a service brake lamp, a parking brake lamp and an accelerator, wherein the output end of the air reservoir is connected with the input end of the pressure limiting valve through an air pipeline, the output end of the limiting valve is connected with the input end of the solenoid valve through an air pipeline, the output end of the solenoid valve is connected with the input end of the two-position three-way valve through an air pipeline, one interface of the output end of the two-position three-way valve is connected with the input end of the foot valve through an air pipeline, the other interface of the output end of the two-;
the output end of the foot valve is electrically connected with the input end of the electronic control unit, the input end of the electronic control unit is electrically connected with the output end of the accelerator, the output end of the electronic control unit is electrically connected with the input end of the service brake lamp, and the output end of the electronic control unit is electrically connected with the input end of the parking brake lamp;
the electromagnetic valve is electrically connected with the electronic control unit.
As a still further scheme of the invention: and a first sensor is arranged on the gas path pipeline connected with the electromagnetic valve and the two-position three-way valve.
As a still further scheme of the invention: the first sensor is electrically connected with the electronic control unit.
As a still further scheme of the invention: and a second sensor is arranged on the gas path pipeline connected with the two-position three-way valve and the foot valve.
As a still further scheme of the invention: and the second sensor is electrically connected with the electronic control unit.
As a still further scheme of the invention: the electromagnetic valve is in a normally open state.
As a still further scheme of the invention: the front axle and the rear axle are connected with a service brake chamber, and the service brake chamber is connected with the brake.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention starts a control switch by a driver in intelligent parking, the whole vehicle enters an intelligent parking brake mode, at the moment, the driver deeply steps on a foot valve which inputs signals to an electronic control unit, the electronic control unit sends signals to an electromagnetic valve, the electromagnetic valve is closed, gas stored in an air storage cylinder is limited by a pressure limiting valve, then a two-position three-way valve is opened, the gas enters a front axle air chamber, a mandril in the air chamber is pushed by air pressure, the vehicle is braked and stopped, meanwhile, a sensor receives the air pressure and outputs signals to the electronic control unit, a parking brake lamp is lightened, the vehicle is in an intelligent parking state, the driver leaves the foot valve, the vehicle is still in a brake state, long-time foot stepping is not needed, and the fatigue of the driver;
2. in the process of driving and braking, a driver steps on the foot valve, the front axle and the rear axle push the ejector rod in the air chamber through air pressure, the vehicle is braked and stopped, meanwhile, the sensor II receives the air pressure and outputs a signal to the electronic control unit, and a driving brake lamp is lightened; in the process of starting and running, the accelerator is slightly stepped, the accelerator inputs a signal to the electronic control unit, the electronic control unit sends a signal to the electromagnetic valve, the electromagnetic valve is opened, gas in the gas chamber is exhausted, braking is relieved, and the vehicle runs normally, meanwhile, the electronic control unit sends a signal to the parking brake lamp, and the parking brake lamp is turned off, so that the response speed of the vehicle in the processes of driving braking and starting and running is high, the sensitivity is high, and the vehicle braking is safer and more effective.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the system of the present invention.
In the figure: 1. a control switch; 2. an electronic control unit; 3. a foot valve; 4. an air cylinder; 5. a pressure limiting valve; 6. an electromagnetic valve; 7. a two-position three-way valve; 8. a first sensor; 9. a second sensor; 10. a service brake light; 11. a parking brake light; 12. and (4) a throttle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a gas-electric hybrid brake system includes a control switch 1, an electronic control unit 2, a foot valve 3, an air reservoir 4, a pressure-limiting valve 5, a solenoid valve 6, a two-position three-way valve 7, a first sensor 8, a second sensor 9, a service brake lamp 10, a parking brake lamp 11 and an accelerator 12, an output end of the air reservoir 4 is connected with an input end of the pressure-limiting valve 5 through an air path pipeline, an output end of the pressure-limiting valve 5 is connected with an input end of the solenoid valve 6 through an air path pipeline, an output end of the solenoid valve 6 is connected with an input end of the two-position three-way valve 7 through an air path pipeline, one interface of an output end of the two-position three-way valve 7 is connected with an input end of the foot valve 3 through an air path pipeline, the;
the output end of the foot valve 3 is electrically connected with the input end of the electronic control unit 2, the input end of the electronic control unit 2 is electrically connected with the output end of the accelerator 12, the output end of the electronic control unit 2 is electrically connected with the input end of the service brake lamp 10, and the output end of the electronic control unit 2 is electrically connected with the input end of the parking brake lamp 10;
the control switch 1 is used for controlling the vehicle to enter a parking state through human control;
the electronic control unit 2 regulates and controls the output of various control signals;
the foot valve 3 is used for braking in a running mode, and when the automobile stops, a signal is controlled and output to the electronic control unit 2;
the air cylinder 4 stores compressed air processed from an air compressor;
the pressure limiting valve 5 controls the pneumatic regulation pressure;
the electromagnetic valve 6 controls the on-off of the gas path;
the two-position three-way valve 7 controls the reversing of gas in the braking system;
the first sensor 8 sends a signal to the electronic control unit 2 to realize the transmission of an intelligent parking signal;
the second sensor 9 sends a signal to the electronic control unit 2 to realize the transmission of a service braking signal;
the service brake lamp 10 gives a signal to a driver to realize service braking;
the parking brake lamp 11 gives a signal to a driver to realize intelligent parking;
the throttle 12 is used for vehicle starting.
The electromagnetic valve 6 is electrically connected with the electronic control unit 2, a first sensor 8 is arranged on an air path pipeline connected with the electromagnetic valve 6 and the two-position three-way valve 7, a signal of a service brake air chamber is received through the first sensor 8, the signal is transmitted to the electronic control unit 2, and intelligent parking is achieved.
The first sensor 8 is electrically connected with the electronic control unit 2, the second sensor 9 is arranged on the gas path pipeline connected with the two-position three-way valve 7 and the foot valve 3, the second sensor 9 receives signals of a service brake chamber, and the signals are transmitted to the electronic control unit 2, so that service braking is realized.
The second sensor 9 is electrically connected with the electronic control unit 2.
The electromagnetic valve 6 is in a normally open state.
The front axle and the rear axle are connected with a service brake chamber, and the service brake chamber is connected with the brake.
The working principle is as follows:
s1: normal braking: a driver steps on the foot valve 3, the front axle and the rear axle push the ejector rod in the air chamber through air pressure, the vehicle is braked and stopped, meanwhile, the second sensor 9 receives the air pressure, outputs a signal to the electronic control unit 2, and the service brake lamp 10 is lightened;
s2: parking intelligently: the control switch 1 is started by a driver, the whole vehicle enters an intelligent parking brake mode, at the moment, the driver deeply steps on a foot valve 3, the foot valve 3 inputs a signal to an electronic control unit, the electronic control unit 2 inputs a signal to an electromagnetic valve 6, the electromagnetic valve 6 is closed, gas stored in an air storage cylinder 4 is limited by a pressure limiting valve 5, then a two-position three-way valve 7 is opened and enters a front axle air chamber, a mandril in the air chamber is pushed by air pressure, the vehicle is braked and stopped, meanwhile, a sensor I8 receives the air pressure, outputs a signal to the electronic control unit 2, a parking brake lamp 11 is lightened, the vehicle is in an intelligent parking state, the foot of the driver leaves the foot valve 3, and the vehicle is still in a brake state;
s3: starting and running: the accelerator 12 is slightly stepped on, the accelerator 12 inputs signals to the electronic control unit, the electronic control unit 2 sends signals to the electromagnetic valve 6, the electromagnetic valve 6 is opened, gas in the gas chamber is exhausted, braking is relieved, the vehicle normally runs, meanwhile, the electronic control unit 2 sends signals to the parking brake lamp 11, and the parking brake lamp 11 is turned off.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (7)

1. A gas-electric hybrid brake system is characterized by comprising a control switch (1), an electronic control unit (2), a foot valve (3), an air reservoir (4), a pressure limiting valve (5), a solenoid valve (6), a two-position three-way valve (7), a first sensor (8), a second sensor (9), a driving brake lamp (10), a parking brake lamp (11) and an accelerator (12), wherein the output end of the air reservoir (4) is connected with the input end of the pressure limiting valve (5) through an air pipeline, the output end of the pressure limiting valve (5) is connected with the input end of the solenoid valve (6) through an air pipeline, the output end of the solenoid valve (6) is connected with the input end of the two-position three-way valve (7) through an air pipeline, one interface at the output end of the two-position three-way valve (7) is connected with the input end of the foot valve (3) through an air pipeline, and the other interface at the, the foot valve (4) is connected with a rear axle;
the output end of the foot valve (3) is electrically connected with the input end of the electronic control unit (2), the input end of the electronic control unit (2) is electrically connected with the output end of the accelerator (12), the output end of the electronic control unit (2) is electrically connected with the input end of the service brake lamp (10), and the output end of the electronic control unit (2) is electrically connected with the input end of the parking brake lamp (10);
the electromagnetic valve (6) is electrically connected with the electronic control unit (2).
2. A gas-electric hybrid brake system according to claim 1, characterized in that a first sensor (8) is arranged on a gas path pipeline connected with the solenoid valve (6) and the two-position three-way valve (7).
3. A gas-electric hybrid brake system according to claim 2, characterized in that said first sensor (8) is electrically connected to the electronic control unit (2).
4. A gas-electric hybrid brake system according to claim 1, characterized in that a second sensor (9) is arranged on the gas path pipeline connecting the two-position three-way valve (7) and the foot valve (3).
5. A gas-electric hybrid brake system according to claim 5, characterized in that said second sensor (9) is electrically connected to the electronic control unit (2).
6. A gas-electric hybrid brake system according to claim 1 or 2, characterized in that said solenoid valve (6) is normally open.
7. A hybrid gas-electric brake system according to claim 1, wherein said front and rear axles are connected to a service brake chamber, said service brake chamber being connected to said brake.
CN202011476551.7A 2020-12-14 2020-12-14 Gas-electric hybrid braking system Active CN112498318B (en)

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Application Number Priority Date Filing Date Title
CN202011476551.7A CN112498318B (en) 2020-12-14 2020-12-14 Gas-electric hybrid braking system

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Application Number Priority Date Filing Date Title
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CN112498318A true CN112498318A (en) 2021-03-16
CN112498318B CN112498318B (en) 2021-12-28

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103085799A (en) * 2013-01-23 2013-05-08 南京艾斯福汽车科技有限公司 Pneumatic intelligent electronic parking braking device
CN104192114A (en) * 2014-08-25 2014-12-10 北京理工大学 Electrically controlled pneumatic braking system of vehicle
CN204095794U (en) * 2014-09-22 2015-01-14 陕西重型汽车有限公司 A kind of vehicle electric parking device based on compression air brake
CN204726410U (en) * 2015-01-21 2015-10-28 瑞立集团瑞安汽车零部件有限公司 A kind of electronic brake system
CN108791263A (en) * 2018-06-11 2018-11-13 南京金龙客车制造有限公司 A kind of car electronics hand brake system and its control method
CN109109839A (en) * 2016-07-29 2019-01-01 吴彬 Slow down the stopping brake control system of the vehicle of brake mill damage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103085799A (en) * 2013-01-23 2013-05-08 南京艾斯福汽车科技有限公司 Pneumatic intelligent electronic parking braking device
CN104192114A (en) * 2014-08-25 2014-12-10 北京理工大学 Electrically controlled pneumatic braking system of vehicle
CN204095794U (en) * 2014-09-22 2015-01-14 陕西重型汽车有限公司 A kind of vehicle electric parking device based on compression air brake
CN204726410U (en) * 2015-01-21 2015-10-28 瑞立集团瑞安汽车零部件有限公司 A kind of electronic brake system
CN109109839A (en) * 2016-07-29 2019-01-01 吴彬 Slow down the stopping brake control system of the vehicle of brake mill damage
CN108791263A (en) * 2018-06-11 2018-11-13 南京金龙客车制造有限公司 A kind of car electronics hand brake system and its control method

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