CN204845912U - Motor bus safe auxiliary system that traveles - Google Patents

Motor bus safe auxiliary system that traveles Download PDF

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Publication number
CN204845912U
CN204845912U CN201520550580.1U CN201520550580U CN204845912U CN 204845912 U CN204845912 U CN 204845912U CN 201520550580 U CN201520550580 U CN 201520550580U CN 204845912 U CN204845912 U CN 204845912U
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China
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gas circuit
chamber
brake
communicated
air
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Expired - Fee Related
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CN201520550580.1U
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Chinese (zh)
Inventor
陈一锴
王凯
石琴
侯超群
董满生
陈锦旭
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Hefei University of Technology
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Hefei University of Technology
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Abstract

The utility model discloses a motor bus safe auxiliary system that traveles, including air compressor, wet gas receiver, preceding brake chamber and back brake chamber, preceding main air reservoir, back main air reservoir, two -chamber brake valve epicoele, two -chamber brake valve cavity of resorption, each spring brake air chamber, ABS ecu and ABS air pressure regulator, characterized by is in safety auxiliary system, braking gas circuit before being arranged in between brake chamber and the preceding main air reservoir sets up first electromagnetism gas circuit switching -over valve, braking gas circuit being arranged in between back brake chamber and the back main air reservoir sets up second electromagnetism gas circuit switching -over valve, each spring brake air chamber one -to -one sets up each electromagnetism quick release valve. The utility model discloses when the driver happened suddenly the serious disease, the control motor bus was with reasonable deceleration braking stagnation of movement to open parking braking, guarantee driving safety.

Description

A kind of motorcoach driving safety ancillary system
Technical field
The utility model relates to a kind of motorcoach driving safety ancillary system, particularly relates to the motorcoach driving safety ancillary system in a kind of chaufeur burst serious disease situation.
Background technology
In recent years, along with the develop rapidly of China's communications and transportation cause, the event of automobile driver burst serious disease takes place frequently.According to incompletely statistics, 2006 to 2015, China only just nearly more than 100 was risen by the automobile driver that media are openly reported drive to happen suddenly in the way event of serious disease, brings serious traffic safety hidden danger.Especially for motorcoach, because passenger is more, chaufeur, once burst disease, initiation road traffic accident, very easily brings great life, property damage for social.
Automatic emergency brake system when the domestic and international monitoring for physiological driver's situation and chaufeur burst disease has carried out a series of research, mainly defines following two class achievements in research: one is the ride safety of automobile forewarn system based on physiological driver's information monitoring.This type systematic adopts the physiological situation of Portable, multiple parameter physiological acquisition equipment Real-Time Monitoring chaufeur, but when chaufeur burst serious disease, only danger signal can be sent to rescue center or control center, uncontrollable automotive safety stagnation of movement.Two is the automotive emergency brake systems based on physiological driver's information monitoring.Usual employing is cut off oil circuit, is forced the mode of engine off, or the auxiliary braking system parallel with original brake system, is connected by brake pedal, realizes automobile emergency brake with electrical motor or electromagnet.There is following shortcoming in this type systematic:
1, to install component additional many for system, and repacking is complicated, and practicality is not strong.
2, do not consider rational car deceleration during braking, affect the comfort level of passenger, and easily cause car rear-end accident.
3, can not realize braking during standstill after vehicle immobilization, at running car in time having the section of longitudinal gradient, electrical motor, electromagnet are difficult to provide enough braking forces to make automobile stagnation of movement, easily cause slipping by slope, and cause road traffic accident.
Utility model content
The utility model is the weak point for avoiding existing for above-mentioned prior art, a kind of motorcoach driving safety ancillary system is provided, to when chaufeur happens suddenly serious disease, adopt the ABS electronic control unit control ABS barometric regulator of motorcoach, automatic adjustable brake air pressure, make motorcoach with after rational deceleration/decel braking stagnation of movement, automatically open braking during standstill.
The utility model adopts following technical scheme for solving the problems of the technologies described above:
The utility model motorcoach driving safety ancillary system, comprise for generation of compressed-air actuated air compressor, clean and dry wet air receiver for carrying out pressurized air, the front compressed air brake cylinder of lock torque and rear compressed air brake cylinder is produced for making car side brake, for to main air reservoir before front compressed air brake cylinder air feed, for the rear main air reservoir to rear compressed air brake cylinder air feed, the dual-chamber brake cavity of resorption in gas circuit is braked between front compressed air brake cylinder and front main air reservoir, the dual-chamber brake epicoele in gas circuit is braked between rear compressed air brake cylinder and rear main air reservoir, each spring brake chamber, ABS electronic control unit and be arranged in the ABS barometric regulator of each braking gas circuit.
The feature of the utility model motorcoach driving safety ancillary system is provided with in described ancillary system:
First electromagnetism gas circuit change-over valve, in its braking gas circuit between front compressed air brake cylinder and front main air reservoir; Second electromagnetism gas circuit change-over valve, in its braking gas circuit between rear compressed air brake cylinder and rear main air reservoir; Each electromagnetism rapid release valve, itself and each spring brake chamber one_to_one corresponding are arranged, and are exhausted under controlling at ABS electronic control unit to described spring brake chamber.
Described first electromagnetism gas circuit change-over valve is all set to the version of the second electromagnetism gas circuit change-over valve: the main inlet chamber be set up in parallel is communicated with outlet chamber with secondary inlet chamber timesharing, primary stage port is communicated with main inlet chamber, secondary inlet port is communicated with secondary inlet chamber, air extractor duct is communicated with outlet chamber, and has control end switch operating state under the control of ABS electronic control unit.
In described first electromagnetism gas circuit change-over valve, its primary stage port is communicated with the output gas circuit of dual-chamber brake cavity of resorption, secondary inlet port is communicated with the output gas circuit of front main air reservoir, and air extractor duct is communicated with the input gas circuit of front compressed air brake cylinder, and control end receives the output control signal of ABS electronic control unit.
In described second electromagnetism gas circuit change-over valve, its primary stage port is communicated with the output gas circuit of dual-chamber brake epicoele, secondary inlet port is communicated with the output gas circuit of rear main air reservoir, and air extractor duct is communicated with the input gas circuit of rear compressed air brake cylinder, and control end receives the output control signal of ABS electronic control unit.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model solve motorcoach this key issue of emergency braking time, make full use of the braking function of the original ABS of motorcoach, only with the addition of universaling electromagnetic valve and brake piping, to motorcoach self structure change little, improvement cost is low.
2, the utility model realizes automatic train stop by motorcoach electronic control unit, electromagnetism gas circuit change-over valve, motorcoach ABS, and relative to mechanical type auxiliary brake mechanism, system wear is little, the life-span is long, energy consumption is low.
3, the utility model implements braking deceleration by motorcoach ABS, ensures the traveling comfort of passenger, reduces the possibility that car rear-end accident occurs.
4, the utility model opens braking during standstill after making motorcoach stagnation of movement automatically, avoids motorcoach to slip by slope.
Accompanying drawing explanation
Fig. 1 is the utility model System's composition schematic diagram;
Fig. 2 is the first electromagnetism gas circuit change-over valve and the second electromagnetism gas circuit change-over valve schematic diagram in the utility model;
Number in the figure: 1 air compressor, 2 wet air receivers, main air reservoir before 3, main air reservoir after 4, 5 dual-chamber brakes, 5a dual-chamber brake epicoele, 5b dual-chamber brake cavity of resorption, 6a off front wheel, 6b the near front wheel, 6c off hind wheel, 6d left rear wheel, compressed air brake cylinder before 7a, compressed air brake cylinder after 7b, 8 electromagnetism rapid release valves, 9 spring brake chambers, 10ABS barometric regulator, 11 first electromagnetism gas circuit change-over valves, 12 second electromagnetism gas circuit change-over valves, 13ABS electronic control unit, 201 outlet chambers, 202 main inlet chambers, 203 secondary inlet chambers, 204 control ends, 205 primary stage ports, 206 secondary inlet ports, 207 air extractor ducts.
Detailed description of the invention
See Fig. 1, in the present embodiment, motorcoach driving safety ancillary system takes full advantage of each device in the former brake system of motorcoach, comprise for generation of compressed-air actuated air compressor 1, clean and dry wet air receiver 2 for carrying out pressurized air, for compressed air brake cylinder 7a before the car side brake generation lock torque of off front wheel 6a and the near front wheel 6b, for producing the rear compressed air brake cylinder 7b of lock torque to the car side brake of off hind wheel 6c and left rear wheel 6d, for to main air reservoir 3 before front compressed air brake cylinder 7a air feed, for the rear main air reservoir 4 to rear compressed air brake cylinder 7b air feed, dual-chamber brake 5, each spring brake chamber 9, ABS electronic control unit 13 and be arranged in the ABS barometric regulator 10 of each braking gas circuit, dual-chamber brake cavity of resorption 5b wherein in dual-chamber brake 5 is in the braking gas circuit between front compressed air brake cylinder 7a and front main air reservoir 3, dual-chamber brake epicoele 5a is the braking gas circuit between rear compressed air brake cylinder 7b and rear main air reservoir 4, this form can reduce the change to motorcoach self structure, reduce improvement cost.
As shown in Figure 1, the present embodiment is provided with in ancillary system: the first electromagnetism gas circuit change-over valve 11, in its braking gas circuit between front compressed air brake cylinder 7a and front main air reservoir 3; Second electromagnetism gas circuit change-over valve 12, in its braking gas circuit between rear compressed air brake cylinder 7b and rear main air reservoir 4; Each electromagnetism rapid release valve 8, itself and each spring brake chamber 9 one_to_one corresponding are arranged, and are exhausted under controlling at ABS electronic control unit 13 to spring brake chamber 9.
As shown in Figure 2, in the present embodiment, the first electromagnetism gas circuit change-over valve 11 is all set to the version of the second electromagnetism gas circuit change-over valve 12: the main inlet chamber 202 be set up in parallel is communicated with outlet chamber 201 with the timesharing of secondary inlet chamber 203, primary stage port 205 is communicated with main inlet chamber 202, secondary inlet port 206 is communicated with secondary inlet chamber 203, air extractor duct 207 is communicated with outlet chamber 201, and has control end 204 switch operating state under the control of ABS electronic control unit 13.
As depicted in figs. 1 and 2, in the first electromagnetism gas circuit change-over valve 11, its primary stage port is communicated with the output gas circuit of dual-chamber brake cavity of resorption 5b, secondary inlet port is communicated with the output gas circuit of front main air reservoir 3, air extractor duct is communicated with the input gas circuit of front compressed air brake cylinder 7a, and control end receives the output control signal of ABS electronic control unit 13; In the second electromagnetism gas circuit change-over valve 12, its primary stage port is communicated with the output gas circuit of dual-chamber brake epicoele 5a, secondary inlet port is communicated with the output gas circuit of rear main air reservoir 4, air extractor duct is communicated with the input gas circuit of rear compressed air brake cylinder 7b, and control end receives the output control signal of ABS electronic control unit 13.
Seeing figures.1.and.2, being set to for realizing a kind of motorcoach driving safety ancillary system in the present embodiment:
First electromagnetism gas circuit change-over valve 11, flowing to for switching braking gas circuit, braking gas circuit before automatic switching between main air reservoir 3 and front compressed air brake cylinder 7a; Second electromagnetism gas circuit change-over valve 12, flowing to for switching braking gas circuit, braking gas circuit after automatic switching between main air reservoir 4 and rear compressed air brake cylinder 7b; Electromagnetism rapid release valve 8, for quick drain spring brake chamber air, makes retarding spring uphold, realizes braking during standstill.
In the present embodiment, the control method of motorcoach driving safety ancillary system is carried out as follows:
Step 1, engine electronic control unit receive the information of chaufeur burst disease, with and will speed up the reset of pedal displacement signal, cut off acceleration pedal displacement detection signal, vehicle enters automatic sliding state.Avoid motorcoach driving safety ancillary system to start working, chaufeur is error stepping on accelerator pedal again, causes vehicle acceleration and braking to carry out the contingency caused simultaneously.
Step 2, ABS electronic control unit 13 receive the information of chaufeur burst disease, power with the control end being the first electromagnetism gas circuit change-over valve 11, by the first electromagnetism gas circuit change-over valve 11 switch operating state be: secondary inlet chamber communicates with gas circuit between outlet chamber, and between main inlet chamber and outlet chamber, gas circuit is cut-off; Braking gas circuit between front main air reservoir 3 with front compressed air brake cylinder 7a is communicated, brakes gas circuit between compressed air brake cylinder 7a and dual-chamber brake cavity of resorption 5b simultaneously and cut-off, make front brake drop into braking;
Meanwhile, the control end being the second electromagnetism gas circuit change-over valve 12 by ABS electronic control unit 13 is powered, by the second electromagnetism gas circuit change-over valve 12 switch operating state be: between secondary inlet chamber and outlet chamber, gas circuit communicates, between main inlet chamber and outlet chamber, gas circuit is cut-off, braking gas circuit between rear main air reservoir 4 with rear compressed air brake cylinder 7b is communicated, brake gas circuit between compressed air brake cylinder 7b and dual-chamber brake epicoele 5a simultaneously to cut-off, make rear brake drop into braking;
When motorcoach driving safety ancillary system does not work, the connection of braking gas circuit needs to step on brake pedal by chaufeur.Now braking gas circuit trend is: the brake gas produced by air compressor 1, clean through wet air receiver 2 and after drying, be divided into two-way to brake gas circuit, one tunnel enters front main air reservoir 3, compressed air brake cylinder 7a before the main inlet chamber of dual-chamber brake cavity of resorption 5b, the first electromagnetism gas pressure change valve 11, the outlet chamber of the first electromagnetism gas pressure change valve 11 arrive; Another road enters rear main air reservoir 4, compressed air brake cylinder 7b after the main inlet chamber of dual-chamber brake epicoele 5a, the second electromagnetism gas pressure change valve 12, the outlet chamber of the second electromagnetism gas pressure change valve 12 arrive.During the work of motorcoach driving safety ancillary system, the connection of braking gas circuit controls without the need to chaufeur, automatic switching on, braking gas circuit switches to: the brake gas produced by air compressor 1, clean through wet air receiver 2 and after drying, be divided into two-way to brake gas circuit, one tunnel enters front main air reservoir 3, through the secondary inlet chamber of the first electromagnetism gas pressure change valve 11, the outlet chamber of the first electromagnetism gas pressure change valve 11 directly arrives front compressed air brake cylinder 7a, another road enters rear main air reservoir 4, through the secondary inlet chamber of the second electromagnetism gas pressure change valve 12, the outlet chamber of the second electromagnetism gas pressure change valve 12 directly arrives rear compressed air brake cylinder 7b.
Step 3, regulated the braking pressure of each compressed air brake cylinder by each ABS barometric regulator 10, make vehicle with the mode ramp to stop of collision avoidance, the mode of collision avoidance refers to:
To be calculated in real time by trailer-mounted radar by ABS electronic control unit 13 and avoid bumping against with front truck the required deceleration/decel a set minif, a min≤ 2m/s 2, then with 2m/s 2for emergency braking deceleration/decel, the braking pressure of each compressed air brake cylinder is regulated to implement braking by each ABS barometric regulator 10; If a min> 2m/s 2, then with a minfor emergency braking deceleration/decel, the braking pressure of each compressed air brake cylinder is regulated to implement braking by each ABS barometric regulator 10; Wherein, 2m/s 2for ensureing the deceleration/decel of passenger comfort;
Deceleration/decel a minacquisition algorithm be:
By recording two cars spacing S originally from car trailer-mounted radar 1;
Calculate the distance S obtaining to walk from the car decelerating phase 2: be divided into three phases, comprise brake coordination stage, deceleration/decel sustainable growth stage and even decelerating phase:
001"/>
In formula (1), a minfor avoiding knocking into the back minimum deceleration degree needed for front truck; t 1for the brake coordination time, get t 1for 0.5s; t 2for air pressure build up time, for motorcoach Pneumatic braking system, t 2for 0.2s; v 0for from car initial velocity m/s;
Calculate and obtain front truck at the distance S walked from the car decelerating phase 3, suppose that front truck is at the uniform velocity state always:
002"/>
In formula (2), v 1for vehicle speed m/s before recording from car radar;
For avoiding colliding with front truck, need meet: S 1+ S 3> S 2, therefore:
003"/>
Step 4, when the moving velocity utilizing wheel speed sensors motorcoach to be detected is for " 0 ", each electromagnetism rapid release valve 8 obtains electric, air in each spring braking during standstill air chamber 9 is discharged, retarding spring is upheld, opening braking during standstill, avoiding motorcoach to slip by slope when there being the section of longitudinal gradient to stop.

Claims (1)

1. a motorcoach driving safety ancillary system, comprise for generation of compressed-air actuated air compressor (1), clean and dry wet air receiver (2) for carrying out pressurized air, the front compressed air brake cylinder of lock torque (7a) and rear compressed air brake cylinder (7b) is produced for making car side brake, for the front main air reservoir (3) to front compressed air brake cylinder (7a) air feed, for the rear main air reservoir (4) to rear compressed air brake cylinder (7b) air feed, be positioned at the dual-chamber brake cavity of resorption (5b) braked between front compressed air brake cylinder (7a) and front main air reservoir (3) in gas circuit, be arranged in the dual-chamber brake epicoele (5a) braking gas circuit between rear compressed air brake cylinder (7b) and rear main air reservoir (4), each spring brake chamber (9), ABS electronic control unit (13) and be arranged in the ABS barometric regulator (10) of each braking gas circuit, it is characterized in that being provided with in described ancillary system:
First electromagnetism gas circuit change-over valve (11), it is arranged in the braking gas circuit between front compressed air brake cylinder (7a) and front main air reservoir (3); Second electromagnetism gas circuit change-over valve (12), it is arranged in the braking gas circuit between rear compressed air brake cylinder (7b) and rear main air reservoir (4); Each electromagnetism rapid release valve (8), itself and each spring brake chamber (9) one_to_one corresponding are arranged, and are exhausted under controlling at ABS electronic control unit (13) to described spring brake chamber (9);
Described first electromagnetism gas circuit change-over valve (11) is all set to the version of the second electromagnetism gas circuit change-over valve (12): the main inlet chamber (202) be set up in parallel is communicated with outlet chamber (201) with secondary inlet chamber (203) timesharing, primary stage port (205) is communicated with main inlet chamber (202), secondary inlet port (206) is communicated with secondary inlet chamber (203), air extractor duct (207) is communicated with outlet chamber (201), and has control end (204) switch operating state under the control of ABS electronic control unit (13);
In described first electromagnetism gas circuit change-over valve (11), its primary stage port is communicated with the output gas circuit of dual-chamber brake cavity of resorption (5b), secondary inlet port is communicated with the output gas circuit of front main air reservoir (3), air extractor duct is communicated with the input gas circuit of front compressed air brake cylinder (7a), and control end receives the output control signal of ABS electronic control unit (13);
In described second electromagnetism gas circuit change-over valve (12), its primary stage port is communicated with the output gas circuit of dual-chamber brake epicoele (5a), secondary inlet port is communicated with the output gas circuit of rear main air reservoir (4), air extractor duct is communicated with the input gas circuit of rear compressed air brake cylinder (7b), and control end receives the output control signal of ABS electronic control unit (13).
CN201520550580.1U 2015-07-24 2015-07-24 Motor bus safe auxiliary system that traveles Expired - Fee Related CN204845912U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105059278A (en) * 2015-07-24 2015-11-18 合肥工业大学 Motor coach running safety auxiliary system and control method thereof
CN105818684A (en) * 2016-04-13 2016-08-03 乐视控股(北京)有限公司 Traffic safety control method, vehicle processor and vehicle
CN105905087B (en) * 2016-05-03 2019-04-16 南京理工大学 The air-pressure type electronic parking system for having emergency brake
CN110077382A (en) * 2019-05-22 2019-08-02 山东理工大学 Two-wheeled centralized driving brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve
CN110077380A (en) * 2019-05-22 2019-08-02 山东理工大学 Four-wheel acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve
CN110103923A (en) * 2019-05-22 2019-08-09 山东理工大学 Four-wheel driven electric vehicle decoupling type Brake energy recovery gas circuit based on stacked unidirectional valve
CN112606646A (en) * 2020-12-10 2021-04-06 南昌工程学院 Auxiliary braking air pressure preparation system for electric vehicle body vibration energy recovery
US11718287B2 (en) 2020-12-09 2023-08-08 Bendix Commercial Vehicle Systems Llc Automated system and method for parking a commercial vehicle

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105059278A (en) * 2015-07-24 2015-11-18 合肥工业大学 Motor coach running safety auxiliary system and control method thereof
CN105059278B (en) * 2015-07-24 2017-12-26 合肥工业大学 A kind of motor bus driving safety accessory system and its control method
CN105818684A (en) * 2016-04-13 2016-08-03 乐视控股(北京)有限公司 Traffic safety control method, vehicle processor and vehicle
CN105905087B (en) * 2016-05-03 2019-04-16 南京理工大学 The air-pressure type electronic parking system for having emergency brake
CN110077382A (en) * 2019-05-22 2019-08-02 山东理工大学 Two-wheeled centralized driving brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve
CN110077380A (en) * 2019-05-22 2019-08-02 山东理工大学 Four-wheel acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve
CN110103923A (en) * 2019-05-22 2019-08-09 山东理工大学 Four-wheel driven electric vehicle decoupling type Brake energy recovery gas circuit based on stacked unidirectional valve
CN110077382B (en) * 2019-05-22 2022-01-28 山东理工大学 Two-wheeled centralized driving electric vehicle braking energy recovery system based on two-way one-way valve and linear exhaust electromagnetic valve
CN110103923B (en) * 2019-05-22 2022-01-28 山东理工大学 Four-wheel drive electric vehicle decoupling type braking energy recovery gas circuit based on stacked one-way valve
US11718287B2 (en) 2020-12-09 2023-08-08 Bendix Commercial Vehicle Systems Llc Automated system and method for parking a commercial vehicle
CN112606646A (en) * 2020-12-10 2021-04-06 南昌工程学院 Auxiliary braking air pressure preparation system for electric vehicle body vibration energy recovery

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