CN106671963B - Electric control type double-insurance parking braking system and vehicle comprising same - Google Patents
Electric control type double-insurance parking braking system and vehicle comprising same Download PDFInfo
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- CN106671963B CN106671963B CN201710029735.0A CN201710029735A CN106671963B CN 106671963 B CN106671963 B CN 106671963B CN 201710029735 A CN201710029735 A CN 201710029735A CN 106671963 B CN106671963 B CN 106671963B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE 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
- B60T13/00—Transmitting 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
- B60T13/10—Transmitting 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
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE 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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/08—Brake-action initiating means for personal initiation hand actuated
- B60T7/10—Disposition of hand control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE 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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/08—Brake-action initiating means for personal initiation hand actuated
- B60T7/10—Disposition of hand control
- B60T7/107—Disposition of hand control with electrical power assistance
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention discloses an electric control type double-insurance parking braking system, which comprises an inflating pump, an air pressure one-way valve, a first air valve, a door pump air storage device, a manual knob air break switch, an electromagnetic valve, a parking distribution air assembly, an external one-way air source interface, an external air pressure one-way valve, a second air valve, a parking air storage device and a parking distribution air assembly which are sequentially connected, wherein a key type electric control rocker switch is electrically connected with the electromagnetic valve; the invention also provides a vehicle comprising the system, which can realize the functions of parking brake or releasing parking brake under the condition of failure of a circuit and an electric control switch, and is convenient for hauling and maintenance of the failed vehicle.
Description
Technical Field
The invention belongs to a vehicle parking braking system, and particularly relates to an electric control type double-insurance parking braking system and a vehicle comprising the same.
Background
The parking brake device is a device which can keep a stationary state continuously after a vehicle stops moving, and can avoid traffic accidents caused by sliding the vehicle when the vehicle stops on a slope road surface.
The most common parking brake is a hand brake (parking brake) which mainly consists of a brake lever, a pull wire, a brake mechanism and a return spring. The brake lever is pulled to a fixed position by utilizing the lever principle, and is locked by the locking teeth. The hand brake is also matched with a return spring, and when the hand brake is pulled up to brake, the spring is lengthened; the hand brake is released, and the spring returns to a long state. When the hand brake is used for a long time, the spring can also generate corresponding deformation, the hand brake stay wire can also generate corresponding deformation, when the hand brake is used for a long time and frequently, the hand brake has the phenomenon of reduced effectiveness, parking failure is easy to cause, and the hand brake must be replaced after being used for a certain time.
In order to allow an automatic transmission vehicle type to resemble a manual vehicle type, the movement of the vehicle may be restricted by a gear, and thus a P gear is provided in the automatic transmission. The P gear mainly comprises a locking gear and a locking mechanism (a lock pin, a return spring, a pressing device, a pawl spring, a working pin pre-tightening spring and the like), the locking mechanism and the locking gear are combined to directly fix a gearbox output shaft connected with wheels, and the wheels can be locked through a half shaft. Although the parking function of the P gear can keep the vehicle stationary, parking of the P gear on the ramp without the handle brake can possibly cause locking of the locking mechanism and the P gear, and the locking mechanism and the P gear can not be released when serious, so that the vehicle is moved integrally, maintenance of the vehicle body is not facilitated, and extra cost is increased.
The electronic hand brake is an upgrade of the traditional hand brake, the hand pull of the traditional hand brake is changed into electric, the electronic hand brake is clamped or loosened by a computer-controlled motor, and a hand brake pull handle is replaced by a button P. But in addition, the cost of the electronic hand brake is higher, and more importantly, the function of the electronic hand brake is also problematic when the storage battery of the vehicle is out of order, so that parking failure is caused, and potential safety hazards are brought.
The prior mechanical hand brake device is only suitable for general cars and minivans, the pedal type hydraulic parking device and the electric control parking device are only used on middle-high grade or luxury cars, and the mechanical pneumatic hand brake device commonly adopted on large vans or buses is commonly called as an air break brake.
The existing parking brake system is perfect, no matter in a car or various trucks, the parking brake system can cause safety accidents after failure, the parking brake system is extremely unsafe and stable, and certain traditional parking brake devices are difficult to operate, and the failure easily causes the irreparable result.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an electric control type double-insurance parking brake system which adopts double insurance to carry out parking brake, and can realize parking brake when a circuit is out of order or an electric control rocker switch is out of order by combining a key type electric control rocker switch and a manual knob air break switch, and can release the parking brake and drag away maintenance through an external one-way air source interface when the circuit and the electric control rocker switch are out of order.
Another object of the present invention is to provide a vehicle including an electronically controlled dual-safety parking brake system, by which traffic accidents can be effectively reduced, a high safety factor is ensured, parking brake can be realized under the condition that a circuit and an electronically controlled switch are malfunctioning, release of the parking brake can be realized under the condition that the circuit and the electronically controlled switch are malfunctioning, and the vehicle is convenient for a trailer to drag away and maintain, thereby reducing cost, reducing damage to the vehicle during hard towing, and bringing convenience to people.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the electric control type double-insurance parking braking system comprises an inflating pump, a first air valve, a second air valve, a manual knob air-break switch, a key-type electric control rocker switch, an electromagnetic valve, a parking distribution air assembly and an external unidirectional air source interface;
the key-type electric control rocker switch is electrically connected with the electromagnetic valve, the air inlet end of the electromagnetic valve air supply channel is communicated with one end of the first air valve through a pipeline, the air outlet end of the electromagnetic valve air supply channel is communicated with the parking distribution air assembly through a pipeline, the manual knob air break switch is arranged on the pipeline between the electromagnetic valve and the first air valve, and the other end of the first air valve is communicated with the air pump through a pipeline;
one end of the second air valve is communicated with an external one-way air source interface, and the other end of the second air valve is communicated with the parking distribution air assembly through a pipeline;
the parking distribution gas assembly is respectively communicated with the left rear wheel braking parking sub-pump assembly and the right rear wheel braking parking sub-pump assembly through pipelines;
the key-type electric control rocker switch and the electromagnetic valve are respectively and electrically connected with the anode and the cathode of the storage battery.
Further, an air pressure one-way valve is arranged between the air pump and the first air valve, so that air flow only flows from the air pump to the first air valve, reverse backflow is not allowed, and air pressure in the system is ensured.
Further, an external air pressure one-way valve is arranged between the external one-way air source interface and the second air valve, and only air flow is allowed to flow from the external one-way air source interface to the second air valve, so that the air flow is prevented from reversely flowing back out of the external one-way air source interface, and the air pressure in the system is stabilized.
Furthermore, a door pump gas storage device is arranged between the first air valve and the manual knob gas-off switch, so that the air pressure in the system is increased, the parking braking effect is improved, and the automobile can be quickly recovered by means of high-pressure air after braking is released.
Furthermore, a parking gas storage device is arranged between the second air valve and the parking distribution gas assembly, so that the air pressure in the system is increased, the parking braking effect is improved, and the automobile can be quickly recovered by means of high-pressure air after braking is released.
Furthermore, the first air valve and the second air valve are four-way valves, and are connected with the front brake air storage device and the rear brake air storage device through pipelines, so that the air pressure of the whole system is increased, the effect is more obvious when parking braking is performed, and the safety coefficient is improved.
Further, the first air valve, the second air valve, the parking distribution air assembly and the side wall of the electromagnetic valve air supply channel are respectively provided with an air pressure exhaust hole, and proper pressure relief can be performed when the pressure is increased.
Further, a rocker switch power supply fuse is arranged between the storage battery and the key-type electric control rocker switch, so that a protection effect is achieved on a circuit system, circuit damage is prevented, and recovery is facilitated after circuit failure.
The vehicle comprising the parking braking system, wherein the key-type electric control rocker switch and the manual knob air-break switch are both positioned on a vehicle center console, and the external one-way air source interface is positioned on the outer wall of the vehicle.
Further, an air cover is arranged at the external one-way air source interface, and is rotationally fixed on the outer wall of the vehicle, so that the external one-way air source interface is protected.
The beneficial effects of the invention are as follows:
the electric control type double-insurance parking brake system and the vehicle comprising the same can realize parking braking and release parking braking only through the key type electric control rocker switch, are simple in structure and convenient to operate, simultaneously realize parking double insurance through the key type electric control rocker switch and the manual knob air-break switch, can realize emergency parking braking through the manual knob air-break switch under the condition that a circuit and the rocker switch are out of order, reduce traffic accidents caused by parking braking failure, improve safety coefficient and ensure life safety of people; and when the circuit and the rocker switch cannot be removed in a short time, the parking brake is released through the external one-way air source interface, so that the vehicle is conveniently dragged back for maintenance, and the maintenance cost of the automobile is reduced.
Drawings
Fig. 1 is a schematic diagram of the electronically controlled dual insurance parking brake system.
In the figure: 1. an inflating pump; 2. an air pressure one-way valve; 3. a first air valve; 3-1, a second air valve; 4. a door pump gas storage device; 5. a manual knob air-break switch; 6. a key-type electric control rocker switch; 7. an electromagnetic valve; 8. parking distribution gas assembly; 9. a parking gas storage device; 10. externally connected with an air pressure one-way valve; 11. externally connected with a unidirectional air source interface; 12. a front brake gas storage device; 13. a rear brake gas storage device; 14. left rear wheel braking parking slave cylinder assembly; 15. the right rear wheel brakes the parking slave cylinder assembly; 16. a storage battery; 17. the seesaw switch power supply fuse.
Detailed Description
The present invention will be further described with reference to the accompanying drawings for the purpose of making the objects, technical solutions and advantages of the present invention more apparent.
In this embodiment, as shown in fig. 1, the electric control type dual-insurance parking brake system comprises an inflating pump 1, a first air valve 3, a second air valve 3-1, a manual knob air-break switch 5, a key type electric control rocker switch 6, an electromagnetic valve 7, a parking distribution air assembly 8 and an external unidirectional air source interface 11; the key-type electric control rocker switch 6 is electrically connected with the electromagnetic valve 7, the air inlet end of the air supply channel of the electromagnetic valve 7 is communicated with one end of the first air valve 3 through a pipeline, the air outlet end of the air supply channel of the electromagnetic valve 7 is communicated with the parking distribution air assembly 8 through a pipeline, the manual knob air break switch 5 is arranged on the pipeline between the electromagnetic valve 7 and the first air valve 3, and the other end of the first air valve 3 is communicated with the air inflation pump 1 through a pipeline; one end of the second air valve 3-1 is communicated with an external one-way air source interface 11, and the other end of the second air valve is communicated with a parking distribution air assembly 8; the parking distribution valve assembly 8 is respectively communicated with the left rear wheel braking parking sub-pump assembly 14 and the right rear wheel braking parking sub-pump assembly 15; the key-type electric control rocker switch 6 and the electromagnetic valve 7 are respectively and electrically connected with the anode and the cathode of the storage battery 16.
As an optimization scheme of the invention, the air pressure check valve 2 is arranged between the air pump 1 and the first air valve 3, so that air flow only flows to the first air valve 3 from the air pump 1, reverse backflow is not allowed, the air pressure in the system is ensured, and a good parking braking effect is achieved.
As an optimization scheme of the invention, an external air pressure one-way valve 10 is arranged between the external one-way air source interface 11 and the second air valve 3-1, only air flow is allowed to flow from the external one-way air source interface 11 to the second air valve 3-1, reverse backflow of the air flow out of the external one-way air source interface 11 is avoided, and therefore air pressure in a system is ensured, and the effect of releasing parking brake can be improved.
As an optimization scheme of the invention, the door pump gas storage device 4 is arranged between the first air valve and the manual knob gas-off switch 5, so that the air pressure in the system is increased, the parking braking effect is increased, and the safety performance is better.
As an optimization scheme of the invention, a parking gas storage device 9 is arranged between the second air valve 3-1 and the parking distribution gas assembly 8, so that the air pressure in the system is increased, and the automobile can be quickly recovered by virtue of high-pressure air after the braking is released.
As an optimization scheme of the invention, the first air valve 3 and the second air valve 3-1 are four-way valves, and the first air valve 3 and the second air valve 3-1 are connected with the front brake air storage device 12 and the rear brake air storage device 13 through pipelines, so that the air pressure of the whole system is increased, the effect is more obvious when parking braking is carried out, and the safety coefficient is improved.
As an optimization scheme of the invention, the side walls of the air supply channels of the first air valve 3, the second air valve 3-1, the parking distribution air assembly 8 and the electromagnetic valve 7 are provided with air pressure exhaust holes, and when the pressure in the system is increased, a proper amount of pressure relief can be carried out through the air pressure exhaust holes; in order to adjust the air pressure inside the first air valve 3 and the second air valve, the side walls of the first air valve 3 and the second air valve 3-1 can be also provided with air pressure regulating valves.
As an optimization scheme of the invention, a rocker switch power fuse 17 is arranged between the storage battery 16 and the key-type electric control rocker switch 6, which plays a role in protecting a circuit system, preventing the circuit from being damaged and facilitating recovery after the circuit fails.
The vehicle comprising the parking braking system is characterized in that the key-type electric control rocker switch 6 and the manual knob air break switch 5 are both positioned on a vehicle center console, so that the operation is convenient, and the external one-way air source interface 11 is positioned on the outer wall of the vehicle.
As an optimization scheme of the invention, the air cover is arranged at the external one-way air source interface 11, and is rotationally fixed on the outer wall of the vehicle, so that the external one-way air source interface is protected, and the air flow is prevented from automatically entering the external one-way air source interface 11 during normal parking.
When the automobile is used specifically, after the automobile stops running, the parking brake system is required to be started in order to prevent the automobile from slipping and keep the automobile in a static state; pressing a key-type electric control rocker switch 6, closing an air supply channel of an electromagnetic valve 7 to stop ventilation of a pressure air source, stopping distribution of the pressure air source to a left rear wheel braking parking slave cylinder assembly 14 and a right rear wheel braking parking slave cylinder assembly 15, and pushing two rear wheel brakes to expand by means of the elasticity of springs after the pressure air source reverse thrust is cut off by energy storage spring brakes in the left rear wheel braking parking slave cylinder assembly 14 and the right rear wheel braking parking slave cylinder assembly 15 so as to brake the two rear wheels to be in a braking state;
when the automobile is required to be braked, the key-type electric control rocker switch 6 is pressed down again, the air supply channel of the electromagnetic valve 7 is opened, the high-pressure air supply is ventilated, the spring force of the energy storage spring brake in the left rear wheel brake parking sub-pump assembly 14 and the spring force of the energy storage spring brake in the right rear wheel brake parking sub-pump assembly 15 are balanced, and the two rear wheel brakes return to a release state, so that the parking brake is released;
when the circuit and the key-type electric control rocker switch 6 fail and cannot be used, the manual knob air-break switch 5 can be used for cutting off a pressure air source, emergency parking braking is realized under the condition that the circuit and the key-type electric control rocker switch 6 fail, the double-insurance function of parking braking is achieved, and for the sake of safety, the normal use of the double-insurance function is ensured, the situation that a vehicle is used when only the manual knob air-break switch 5 is effective is avoided, and braking is released through the manual knob air-break switch 5 after the circuit and the key-type electric control rocker switch 6 are restored to a normal state is required;
when the faults of the circuit and the key type electric control rocker switch 6 are serious and the normal state cannot be restored in a short time, the external pressure air source is input to the external one-way air source interface 11 to release the parking brake, so that the situation that the parking brake cannot be carried out under the condition of double insurance is avoided, the air source interface of the rescue trailer is required to be in butt joint, the external pressure air source can enter the automobile brake system, the brakes of the two rear wheels are returned to the release state, the parking brake is released, the automobile can be conveniently towed away for maintenance, the automobile is prevented from being forced to be towed away for damage, and the automobile can be used after the circuit and the key type electric control rocker switch 6 are maintained.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides an automatically controlled formula double insurance parking braking system which characterized in that: the system comprises an inflating pump (1), a first air valve (3), a second air valve (3-1), a manual knob air-break switch (5), a key-type electric control rocker switch (6), an electromagnetic valve (7), a parking distribution air assembly (8) and an external unidirectional air source interface (11);
the key-type electric control rocker switch (6) is electrically connected with the electromagnetic valve (7), the air inlet end of the air supply channel of the electromagnetic valve (7) is communicated with one end of the first air valve (3) through a pipeline, the air outlet end of the air supply channel of the electromagnetic valve (7) is communicated with the parking distribution air assembly (8) through a pipeline, the manual knob air-break switch (5) is arranged on the pipeline between the electromagnetic valve (7) and the first air valve (3), and the other end of the first air valve (3) is communicated with the air pump (1) through a pipeline;
one end of the second air valve (3-1) is communicated with an external one-way air source interface (11), and the other end of the second air valve is communicated with the parking distribution air assembly (8) through a pipeline;
the parking distribution air assembly (8) is respectively communicated with the left rear wheel braking parking sub-pump assembly (14) and the right rear wheel braking parking sub-pump assembly (15) through pipelines;
the key-type electric control rocker switch (6) and the electromagnetic valve (7) are respectively and electrically connected with the anode and the cathode of the storage battery (16);
a door pump gas storage device (4) is arranged between the first air valve (3) and the manual knob gas-off switch (5);
a parking gas storage device (9) is arranged between the second air valve (3-1) and the parking distribution gas assembly (8);
after the automobile stops running, a key-type electric control rocker switch (6) is pressed, an air supply channel of an electromagnetic valve (7) is closed to stop the ventilation of a pressure air source, and then the distribution of the pressure air source to a left rear wheel braking parking sub-pump assembly (14) and a right rear wheel braking parking sub-pump assembly (15) is stopped, so that normal braking is realized;
when the circuit and the key-type electric control rocker switch (6) are out of order, the manual knob air-break switch (5) cuts off the pressure air source to realize emergency parking braking;
when the faults of the circuit and the key type electric control rocker switch (6) are serious and the normal state cannot be recovered in a short time, the parking brake is released by inputting an external pressure air source to the external one-way air source interface (11).
2. The electronically controlled dual-insurance parking brake system of claim 1, wherein: an air pressure one-way valve (2) is arranged between the air pump (1) and the first air valve (3).
3. The electronically controlled dual fail-safe parking brake system of claim 2, wherein: an external air pressure one-way valve (10) is arranged between the external one-way air source interface (11) and the second air valve (3-1).
4. The electronically controlled dual-insurance parking brake system of claim 1, wherein: the first air valve (3) and the second air valve (3-1) are four-way valves, and the first air valve (3) and the second air valve (3-1) are connected with the front brake air storage device (12) and the rear brake air storage device (13) through pipelines.
5. The electronically controlled dual-insurance parking brake system of claim 1, wherein: the side walls of the air supply channels of the first air valve (3), the second air valve (3-1), the parking distribution air assembly (8) and the electromagnetic valve (7) are respectively provided with an air pressure exhaust hole.
6. The electronically controlled dual-insurance parking brake system of claim 1, wherein: a rocker switch power fuse (17) is arranged between the storage battery (16) and the key-type electric control rocker switch (6).
7. A vehicle comprising a system as claimed in any one of claims 1-6, characterized in that: the key-type electric control rocker switch (6) and the manual knob air-break switch (5) are both positioned on the vehicle center console, and the external one-way air source interface (11) is positioned on the outer wall of the vehicle.
8. The vehicle of claim 7, wherein: an air cover is arranged at the position of the external unidirectional air source interface (11), and the air cover is rotationally fixed on the outer wall of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710029735.0A CN106671963B (en) | 2017-01-16 | 2017-01-16 | Electric control type double-insurance parking braking system and vehicle comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710029735.0A CN106671963B (en) | 2017-01-16 | 2017-01-16 | Electric control type double-insurance parking braking system and vehicle comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106671963A CN106671963A (en) | 2017-05-17 |
| CN106671963B true CN106671963B (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710029735.0A Active CN106671963B (en) | 2017-01-16 | 2017-01-16 | Electric control type double-insurance parking braking system and vehicle comprising same |
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| CN (1) | CN106671963B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914689B (en) * | 2017-11-08 | 2020-04-21 | 湖北航天技术研究院特种车辆技术中心 | Parking braking system |
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