CN116061906A - Vehicle braking system and method - Google Patents
Vehicle braking system and method Download PDFInfo
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- CN116061906A CN116061906A CN202310032378.9A CN202310032378A CN116061906A CN 116061906 A CN116061906 A CN 116061906A CN 202310032378 A CN202310032378 A CN 202310032378A CN 116061906 A CN116061906 A CN 116061906A
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- 230000001276 controlling effect Effects 0.000 description 10
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- 238000003825 pressing Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
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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
- B60T13/24—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 the fluid being gaseous
- B60T13/26—Compressed-air systems
- B60T13/40—Compressed-air systems indirect, i.e. compressed air booster units indirect systems
- B60T13/403—Compressed-air systems indirect, i.e. compressed air booster units indirect systems specially adapted for coupling with dependent systems, e.g. tractor-trailer systems
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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
- B60T13/74—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 electrical assistance or drive
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The application relates to a vehicle braking system and method. The system comprises: the system comprises a main vehicle braking module, a trailer braking module, a braking control module and a braking pedal, wherein the braking control module is respectively connected with the main vehicle braking module, the trailer braking module and the braking pedal; the braking control module is used for acquiring the opening of the braking pedal, controlling the main vehicle braking module to brake the main vehicle according to the opening of the braking pedal, and controlling the trailer braking module to brake the trailer; and acquiring the user command and the state of the trailer, and determining whether to interrupt braking of the main vehicle by the main vehicle braking module according to the user command and the state of the trailer. The system improves the safety of the vehicle and improves the accuracy and convenience of a user in braking the trailer.
Description
Technical Field
The present application relates to the field of automotive technology, and in particular, to a vehicle braking system and method.
Background
With the development of the automotive field, the operation mode of a tractor and a trailer is more and more common. At present, the same set of brake control system is adopted for the tractor and the trailer, and a driver can only brake the main vehicle and the trailer at the same time, so that the damage to the vehicle and even traffic accidents can be caused under specific road conditions.
In order to avoid the above situation, the conventional technology is to provide a separate manipulator valve on the host vehicle, and the driver can independently brake the trailer by operating the manipulator valve.
However, when the driver brakes the trailer alone through the manipulator valve, the opening degree of the manipulator valve is not easy to control, and it is difficult for the driver to accurately brake the trailer using the manipulator valve.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a vehicle brake system and method that facilitates driver adjustment of the braking force of a trailer.
A vehicle braking system, the vehicle including a host vehicle and a trailer detachably connected to the host vehicle, the system comprising: the system comprises a main vehicle braking module, a trailer braking module, a braking control module and a braking pedal, wherein the braking control module is electrically connected with the main vehicle braking module, the trailer braking module and the braking pedal respectively; the braking control module is used for acquiring the opening of a braking pedal, controlling the main vehicle braking module to brake the main vehicle according to the opening of the braking pedal, and controlling the trailer braking module to brake the trailer; and acquiring a user instruction and the state of the trailer, and determining whether to interrupt braking of the main vehicle by the main vehicle braking module according to the user instruction and the state of the trailer.
In one embodiment, the brake control module includes: the air cylinder is used for storing brake gas; the first brake valve comprises an air inlet, a first air outlet, a second air outlet, a control end and a signal output end, wherein the air inlet of the first brake valve is connected with the air storage cylinder, the control end of the first brake valve is connected with the brake pedal, and the opening of the first air outlet of the first brake valve and the opening of the second air outlet of the first brake valve are respectively adjusted according to the opening of the brake pedal; the stop valve comprises a first air inlet, a second air inlet, a first air outlet, a second air outlet and a control end, wherein the first air inlet of the stop valve is connected with the first air outlet of the first brake valve, the second air inlet of the stop valve is connected with the second air outlet of the first brake valve, and the first air outlet and the second air outlet of the stop valve are connected with the main vehicle brake module; the second brake valve comprises an air inlet, a first air outlet, a second air outlet and a control end, the air inlet of the second brake valve is connected with the air storage cylinder, the first air outlet and the second air outlet of the second brake valve are connected with the trailer brake module, the control end of the second brake valve is connected with the signal output end of the first brake valve, and the second brake valve is used for respectively adjusting the opening of the first air outlet of the second brake valve and the opening of the second air outlet of the second brake valve according to the opening of the brake pedal; and the controller is connected with the control end of the stop valve and used for controlling the opening and closing of the stop valve according to a user command and the state of the trailer.
In one embodiment, the main vehicle brake module includes: the main vehicle front wheel braking unit is connected with the first air outlet of the stop valve and is used for braking the front wheel of the main vehicle by adopting braking air discharged from the first air outlet of the stop valve; and the main vehicle rear wheel braking unit is connected with the second air outlet of the stop valve and is used for braking the rear wheel of the main vehicle by adopting braking air discharged from the second air outlet of the stop valve.
In one embodiment, the trailer brake module includes: the front wheel braking unit of the trailer is connected with the first air outlet of the second braking valve and is used for braking the front wheel of the trailer by adopting braking air exhausted from the first air outlet of the second braking valve; and the rear wheel braking unit of the trailer is connected with the second air outlet of the second braking valve and is used for braking the rear wheel of the trailer by adopting braking air discharged from the second air outlet of the second braking valve.
In one embodiment, the system further comprises: the interrupt switch is arranged on a steering wheel of the vehicle, is connected with the brake control module, and is used for receiving the user instruction and sending the user instruction to the brake control module.
In one embodiment, the interrupt switch is a self-resetting switch.
In one embodiment, the system further comprises: the trailer connection switch is arranged on a saddle connected with the main vehicle and the trailer, and the brake control module is also electrically connected with the trailer connection switch and a brake anti-lock system of the trailer respectively and used for determining the connection state of the main vehicle and the trailer according to the opening and closing state of the trailer connection switch; and determining whether to interrupt the braking of the main vehicle by the main vehicle braking module according to the user instruction, the connection state of the main vehicle and the trailer and the running state of a braking anti-lock braking system of the trailer.
In one embodiment, the braking control module is configured to, when receiving a user command including interrupting braking of the host vehicle, interrupt braking of the host vehicle by the host vehicle braking module if a connection state of the host vehicle and the trailer is normal and an operation state of a braking anti-lock braking system of the trailer is normal.
In one embodiment, the system further comprises: and the display module is connected with the brake control module and used for displaying the control state of the brake control module on the main vehicle brake module, the connection state of the main vehicle and the trailer and the running state of a brake anti-lock system of the trailer.
A method of braking a vehicle including a host vehicle and a trailer coupled to the host vehicle, the method comprising: acquiring the opening degree of a vehicle brake pedal; braking the main vehicle according to the opening degree of the brake pedal; braking the trailer according to the opening degree of the brake pedal; and determining whether to stop braking the main vehicle according to the opening degree of the brake pedal according to the user command and the state of the trailer.
According to the vehicle braking system and the method, the braking of the main vehicle is realized by arranging the main vehicle braking module, the braking of the trailer is realized by arranging the trailer braking module, and the driver can conveniently press the braking pedal to control the braking of the vehicle by arranging the braking pedal. By arranging the brake control module, the main vehicle braking module can be controlled to brake the main vehicle and the trailer braking module can be controlled to brake the trailer according to the opening degree of the brake pedal, so that the braking of the vehicle is realized. The braking control module can also determine whether to interrupt braking of the main vehicle by the main vehicle braking module according to the user command and the state of the trailer. When the vehicle runs to a specific road section, such as turns on a wet road surface, the braking of the main vehicle needs to be interrupted, so that the accident that the main vehicle and the trailer are folded due to the overlarge braking force of the main vehicle is avoided. At the moment, the braking control on the main vehicle can be interrupted through the system, and the user only controls the trailer braking module to brake the trailer by pressing the braking pedal, so that the safety of the vehicle is ensured. Because the user controls the braking of the trailer through the brake pedal, the brake pedal accords with the driving habit of the user just like the normal braking operation of the vehicle, the user can conveniently and accurately brake the trailer when controlling the opening degree of the brake pedal, the safety of the vehicle is improved, and the accuracy and convenience of the user in braking the trailer are also improved.
Drawings
In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings required for the descriptions of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of a vehicle braking system according to one embodiment;
FIG. 2 is a schematic illustration of a vehicle braking system in another embodiment;
FIG. 3 is a schematic illustration of a vehicle braking system according to yet another embodiment;
FIG. 4 is a flow chart of a method of braking a vehicle in one embodiment.
Reference numerals illustrate:
10-main car braking module, 20-trailer braking module, 30-braking control module, 40-brake pedal, 31-gas receiver, 32-first brake valve, 33-stop valve, 34-second brake valve, 35-controller, 11-main car front wheel braking unit, 12-main car rear wheel braking unit, 21-trailer front wheel braking unit, 22-trailer rear wheel braking unit, 50-interrupt switch, 51-trailer connection switch, 52-trailer braking anti-lock system, 60-display module.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that the terms "first," "second," and the like, as used herein, may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments should be understood as "electrical connection", "communication connection", and the like if there is transmission of electrical signals or data between objects to be connected.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
In one embodiment, as shown in FIG. 1, there is provided a vehicle braking system, the vehicle including a host vehicle and a trailer removably connected to the host vehicle, the system comprising: the brake control module 30 is electrically connected to the main vehicle brake module 10, the trailer brake module 20, and the brake pedal 40, respectively, and the brake control module 30 is electrically connected to the main vehicle brake module 10, the trailer brake module 20, and the brake pedal 40, respectively. Wherein:
the brake control module 30 is configured to obtain an opening degree of the brake pedal 40, and control the main vehicle brake module 10 to brake the main vehicle and control the trailer brake module 20 to brake the trailer according to the opening degree of the brake pedal 40; the user command and the status of the trailer are acquired, and it is determined whether to interrupt braking of the host vehicle by the host vehicle braking module 10 according to the user command and the status of the trailer.
Specifically, the main vehicle brake module 10 includes a brake mechanism of the main vehicle, and is capable of performing an operation of braking the main vehicle, and the trailer brake module 20 includes a brake mechanism of the trailer, and is capable of performing an operation of braking the trailer. The brake pedal 40 is provided in the cab, and the driver can brake the vehicle by depressing the brake pedal 40, and the opening degree of the brake pedal 40 is correlated with the braking force of the vehicle. In general, the brake control module 30 controls the main vehicle brake module 10 and the trailer brake module 20 to brake the main vehicle and the trailer, respectively, according to the opening degree of the brake pedal 40. At this time, the brake pedal 40 simultaneously controls braking of the host vehicle and the trailer, and can brake the entire vehicle. If the brake control module 30 interrupts the control of the main vehicle brake module 10 according to the user's command and the state of the trailer, the brake pedal 40 can only be used to control the braking of the trailer, i.e., the opening degree of the brake pedal 40 only affects the braking force of the trailer, and does not brake the main vehicle. I.e. a separate braking of the trailer is achieved.
In this embodiment, braking of the host vehicle is achieved by setting the host vehicle braking module, braking of the trailer is achieved by setting the trailer braking module, and braking of the vehicle can be controlled by a driver conveniently stepping on the brake pedal by setting the brake pedal. By arranging the brake control module, the main vehicle braking module can be controlled to brake the main vehicle and the trailer braking module can be controlled to brake the trailer according to the opening degree of the brake pedal, so that the braking of the vehicle is realized. The braking control module can also determine whether to interrupt braking of the main vehicle by the main vehicle braking module according to the user command and the state of the trailer. When the vehicle runs to a specific road section, such as turns on a wet road surface, the braking of the main vehicle needs to be interrupted, so that the accident that the main vehicle and the trailer are folded due to the overlarge braking force of the main vehicle is avoided. At the moment, the braking control on the main vehicle can be interrupted through the system, and the user only controls the trailer braking module to brake the trailer by pressing the braking pedal, so that the safety of the vehicle is ensured. Because the user controls the braking of the trailer through the brake pedal, the brake pedal accords with the driving habit of the user just like the normal braking operation of the vehicle, the user can conveniently and accurately brake the trailer when controlling the opening degree of the brake pedal, the safety of the vehicle is improved, and the accuracy and convenience of the user in braking the trailer are also improved.
In one embodiment, as shown in FIG. 2, the brake control module 30 includes: the air cylinder 31, the first brake valve 32, the stop valve 33, the second brake valve 34, and the controller 35. Wherein:
the air reservoir 31 is used for storing brake air.
Illustratively, the reservoir 31 stores high pressure brake gas that can be provided to each brake valve of the vehicle.
The first brake valve 32 comprises an air inlet, a first air outlet, a second air outlet, a control end and a signal output end, the air inlet of the first brake valve 32 is connected with the air reservoir 31, the control end of the first brake valve 32 is connected with the brake pedal 40, and the opening degrees of the first air outlet of the first brake valve 32 and the second air outlet of the first brake valve 32 are respectively adjusted according to the opening degree of the brake pedal 40.
The first brake valve 32 is connected to the air reservoir 31 through an air passage, and is capable of conducting the air in the air reservoir 31, and controlling whether the air can flow out, the flow rate of the air, and the like as a valve, for example. The first brake valve 32 is electrically connected to the brake pedal 40, and there is a preset correspondence between the opening of the first brake valve 32 and the opening of the brake pedal 40, so that when the driver depresses the brake pedal 40, the opening of the first brake valve 32 can be controlled, and thus the output of the brake gas is controlled according to a preset ratio corresponding to the opening of the brake pedal 40, thereby realizing braking of the vehicle, and a certain ratio is also provided between the amount of the brake gas output and the braking force.
Illustratively, the main vehicle brake module 10 includes a front wheel brake circuit and a rear wheel brake circuit. The first air outlet of the first brake valve 32 is used for outputting brake air to a front wheel brake circuit of the host vehicle, and the second air outlet of the first brake valve 32 is used for outputting brake air to a rear wheel brake circuit of the host vehicle. Thereby realizing the braking of the front wheels and the rear wheels of the main vehicle.
The stop valve 33 includes a first air inlet, a second air inlet, a first air outlet, a second air outlet, and a control end, the first air inlet of the stop valve 33 is connected with the first air outlet of the first brake valve 32, the second air inlet of the stop valve 33 is connected with the second air outlet of the first brake valve 32, and the first air outlet and the second air outlet of the stop valve 33 are connected with the main vehicle brake module 10.
Specifically, the shutoff valve 33 is provided between the first brake valve 32 and the main vehicle brake module 10, and is capable of controlling whether the brake gas output from the first brake valve 32 can be transmitted to the main vehicle brake module 10, and when the shutoff valve 33 is closed, the brake gas output from the first brake valve 32 is shut off, and the brake gas cannot reach the main vehicle brake module 10, i.e., the brake function for the main vehicle cannot be realized.
The second brake valve 34 comprises an air inlet, a first air outlet, a second air outlet and a control end, the air inlet of the second brake valve 34 is connected with the air reservoir 31, the first air outlet and the second air outlet of the second brake valve 34 are connected with the trailer brake module 20, the control end of the second brake valve 34 is connected with the signal output end of the first brake valve 32, and the second brake valve 34 is used for respectively adjusting the opening of the first air outlet of the second brake valve 34 and the opening of the second air outlet of the second brake valve 34 according to the opening of the brake pedal 40.
The second brake valve 34 is connected to the air reservoir 31 through an air passage, and is capable of conducting the air in the air reservoir 31, and controlling whether the air can flow out, the flow rate of the air, and the like as a valve, for example. The second brake valve 34 is electrically connected to the brake pedal 40 through the first brake valve 32, and there is a preset correspondence between the opening of the second brake valve 34 and the opening of the brake pedal 40, so that when the driver depresses the brake pedal 40, the opening of the second brake valve 34 can be controlled, and thus the output of the brake gas is controlled according to a preset ratio corresponding to the opening of the brake pedal 40, thereby realizing the braking of the vehicle, and the amount of the brake gas output is also in a certain ratio with the braking force.
Illustratively, the trailer brake module 20 includes a front wheel brake circuit and a rear wheel brake circuit. The first air outlet of the second brake valve 34 is used for outputting brake air to a front wheel brake circuit of the trailer, and the second air outlet of the second brake valve 34 is used for outputting brake air to a rear wheel brake circuit of the trailer. Thereby realizing the braking of the front wheels and the rear wheels of the trailer.
The controller 35 is connected to a control end of the stop valve 33, and is configured to control opening and closing of the stop valve 33 according to a user command and a state of the trailer.
Specifically, the controller 35 can control the opening and closing of the shutoff valve 33, and when the shutoff valve 33 is opened, the gas output from the first brake valve 32 can reach the main vehicle brake module 10, thereby braking the main vehicle, and when the shutoff valve 33 is closed, the brake gas output from the first brake valve 32 is cut off, and thus the brake function of the main vehicle cannot be achieved. Thereby cutting off the brake control of the host vehicle.
In the present embodiment, by providing the air receiver 31, the first brake valve 32, the shut-off valve 33, the second brake valve 34, and the controller 35, a brake air path of the vehicle is formed, and whether to shut off the air path between the first brake valve 32 and the main vehicle brake module 10 can be determined according to a user instruction and the state of the trailer, so that control of the main vehicle brake module 10 is interrupted, and safety of the vehicle can be ensured.
In one embodiment, referring still to FIG. 2, the main vehicle brake module 10 includes: a main vehicle front wheel braking unit 11 and a main vehicle rear wheel braking unit 12. Wherein:
the main vehicle front wheel braking unit 11 is connected to the first air outlet of the shutoff valve 33, and is configured to brake the front wheels of the main vehicle using the brake air discharged from the first air outlet of the shutoff valve 33.
The main vehicle rear wheel braking unit 12 is connected to the second air outlet of the shutoff valve 33, and is configured to brake the rear wheel of the main vehicle by using the brake air discharged from the second air outlet of the shutoff valve 33.
Illustratively, the main front wheel brake unit 11 and the main rear wheel brake unit 12 each include a brake circuit and components required for vehicle braking, such as solenoid valves, brake components, and the like, which are vehicle components capable of meeting the vehicle braking requirements.
In the present embodiment, the front wheel brake unit 11 and the rear wheel brake unit 12 of the host vehicle are provided and connected to the two air outlets of the shutoff valve 33, respectively, to thereby brake the front wheel and the rear wheel of the host vehicle, respectively.
In one embodiment, referring still to FIG. 2, the trailer brake module 20 includes: a front wheel braking unit 21 of the trailer and a rear wheel braking unit 22 of the trailer. Wherein:
the front wheel braking unit 21 of the trailer is connected to the first air outlet of the second brake valve 34, and is configured to brake the front wheel of the trailer by using the brake air discharged from the first air outlet of the second brake valve 34.
The trailer rear wheel brake unit 22 is connected to the second air outlet of the second brake valve 34 for braking the rear wheels of the trailer using the brake air discharged from the second air outlet of the second brake valve 34.
Illustratively, the front wheel brake unit 21 and the rear wheel brake unit 22 of the trailer each include a brake circuit and components required for vehicle braking, such as solenoid valves, brake components, and the like, capable of meeting vehicle braking requirements.
In the present embodiment, the front wheel braking unit 21 and the rear wheel braking unit 22 of the trailer are respectively connected to the two air outlets of the second brake valve 34, so that the front wheel and the rear wheel of the trailer are respectively braked.
In one embodiment, as shown in FIG. 3, the vehicle braking system further comprises: interrupt switch 50. The interrupt switch 50 is provided on a steering wheel of the vehicle, the interrupt switch 50 is connected to the brake control module 30, and the brake control module 30 is further configured to determine a user instruction according to an open/close state of the interrupt switch 50.
Specifically, the interrupt switch 50 is disposed on the steering wheel, so that the operation is more convenient, and a driver can conveniently toggle the interrupt switch 50 to send out a user instruction, thereby improving the convenience of operation.
Specifically, the user command may be a user command to interrupt the control of the main vehicle brake module 10, and may instruct the brake control module 30 to stop controlling the main vehicle brake module 10, or may be a user command to resume the control of the main vehicle brake module 10, and may instruct the brake control module 30 to continue controlling the main vehicle brake module 10.
The interrupt switch 50 is illustratively a self-resetting switch. Therefore, the brake function of the main vehicle is cut off all the time when the driver forgets to reset after the interrupt switch 50 is shifted, and the safety problem caused by the fact that the driver does not react when the main vehicle is required to brake later is avoided. And the interrupt switch 50 can be automatically reset, so that the braking function of the main vehicle can be automatically recovered, and the safety of the vehicle is ensured.
In this embodiment, by providing the interrupt switch 50 on the steering wheel, the user can conveniently select whether to brake the host vehicle by using the brake pedal 40 according to the actual road conditions and requirements.
In one embodiment, with continued reference to FIG. 3, the vehicle braking system further includes: a trailer hitch switch 51. The trailer hitch switch 51 is provided on a saddle to which the host vehicle is coupled.
Specifically, the trailer hitch switch 51 is a position indicating switch that is closed when the trailer is coupled to the host vehicle and is opened when the trailer is decoupled from the host vehicle. The brake control module 30 connected to the trailer hitch switch 51 can determine the connection state of the host vehicle and the trailer by the open/close state of the trailer hitch switch 51.
The brake control module 30 is also electrically connected with the trailer hitch switch 51 and a brake anti-lock braking system 52 of the trailer, respectively, for determining the connection state of the host vehicle and the trailer according to the opening and closing state of the trailer hitch switch; and determining whether to interrupt the braking of the main vehicle by the main vehicle braking module according to the user instruction, the connection state of the main vehicle and the trailer and the running state of the braking anti-lock braking system of the trailer.
Specifically, the trailer antilock brake system 52 includes a trailer left wheel speed sensor, a trailer right wheel speed sensor, a trailer left wheel antilock valve, a trailer right wheel antilock valve, and a trailer antilock controller 35. The trailer anti-lock brake controller 35 is connected with the left wheel speed sensor, the right wheel speed sensor, the left wheel anti-lock brake valve and the right wheel anti-lock brake valve of the trailer respectively, and the trailer anti-lock brake controller is used for adjusting the working states of the left wheel anti-lock brake valve and the right wheel anti-lock brake valve of the trailer according to the left wheel speed and the right wheel speed measured by the left wheel speed sensor and the right wheel speed sensor of the trailer. Thereby realizing the braking anti-lock function of the trailer.
In the present embodiment, the brake control module 30 determines whether to interrupt control of the main vehicle brake module 10 based on a user command, a connection state of the main vehicle and the trailer, and an operation state of the brake antilock brake system 52 of the trailer. Thus, when determining whether to interrupt control of the main vehicle brake module 10, it is determined according to the user's needs in combination with the actual running state of the vehicle, ensuring the safety of the vehicle.
In one embodiment, the brake control module 30 is configured to interrupt the braking of the host vehicle by the host vehicle braking module 10 when a user command is received that includes interrupting the braking of the host vehicle if the connection between the host vehicle and the trailer is normal and the operation of the anti-lock brake system of the trailer is normal.
In the present embodiment, the brake control module 30 first needs to receive a user instruction including interrupting control of the main vehicle brake module 10, and then starts to determine whether to execute the user instruction according to the running state of the vehicle. The brake control module 30 determines the connection state of the host vehicle and the trailer, and when the host vehicle is not connected to the trailer, the brake control module 30 is controlled to interrupt the control of the host vehicle brake module 10 only when the connection state of the host vehicle and the trailer is normal, that is, the host vehicle is actually connected to the trailer, without executing the operation of interrupting the control of the host vehicle brake module 10, thereby avoiding an accident caused by a brake failure of the vehicle. Because the separate braking of the trailer when the anti-lock brake system 52 of the trailer fails may result in the tail flick of the trailer, it is also necessary to satisfy the normal operation state of the anti-lock brake system 52 of the trailer, so as to control the brake control module 30 to interrupt the control of the main vehicle brake module 10, thereby ensuring the safety of the separate braking of the trailer.
In one embodiment, with continued reference to FIG. 3, the vehicle braking system further includes: and a display module 60. The display module 60 is connected to the brake control module 30, and is configured to display a control state of the brake control module 30 on the main vehicle brake module 10, a connection state of the main vehicle and the trailer, and an operation state of the brake antilock system 52 of the trailer.
For example, the display module 60 may be an instrument panel of the vehicle, and is connected to the brake control module 30 through a bus, and includes a plurality of indicator lamps, where a first indicator lamp is used to indicate a control state of the brake control module 30 to the main vehicle brake module 10, and the first indicator lamp is turned on when the brake control module 30 cuts off the control of the main vehicle brake module 10. The second light is used to indicate the connection status of the host vehicle and the trailer and the third light is used to indicate the operational status of the trailer's antilock brake system 52.
In this embodiment, by setting the display module, it is possible to facilitate the driver to visually check the control state of the brake control module on the main vehicle brake module, the connection state of the main vehicle and the trailer, and the running state of the brake antilock system of the trailer.
In one embodiment, as shown in FIG. 4, a vehicle braking method is provided, the vehicle including a host vehicle and a trailer coupled to the host vehicle, the method comprising:
step S400, the opening degree of the vehicle brake pedal is acquired.
In step S410, the host vehicle is braked according to the opening degree of the brake pedal.
Step S420, braking the trailer according to the opening degree of the brake pedal.
Step S430, determining whether to stop braking the main vehicle according to the opening degree of the brake pedal according to the user command and the state of the trailer.
In the present embodiment, the brake pedal is passed, so that the driver can conveniently depress the brake pedal to control the braking of the vehicle. The main vehicle is braked according to the opening degree of the brake pedal, and the trailer is braked according to the opening degree of the brake pedal, so that the braking of the vehicle is realized. According to the user command and the state of the trailer, whether to interrupt the braking of the main vehicle is determined, so that when the vehicle runs to a specific road section, for example, the vehicle is turned over on a wet road surface, the braking of the main vehicle is required to be interrupted, the occurrence of the accident that the main vehicle and the trailer are folded due to overlarge braking force of the main vehicle is avoided, the braking control of the main vehicle is interrupted at the moment, the user can only control the braking of the trailer by pressing a brake pedal, and the independent braking of the trailer is realized, so that the safety of the vehicle is ensured.
It should be understood that, although the steps in the flowchart of fig. 4 are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least a portion of the steps in fig. 4 may include a plurality of steps or stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily sequential, but may be performed in rotation or alternatively with at least a portion of the steps or stages in other steps or other steps.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like.
In the description of the present specification, reference to the terms "some embodiments," "other embodiments," "desired embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. A vehicle braking system, wherein the vehicle includes a host vehicle and a trailer removably connected to the host vehicle, the system comprising: the system comprises a main vehicle braking module, a trailer braking module, a braking control module and a braking pedal, wherein the braking control module is electrically connected with the main vehicle braking module, the trailer braking module and the braking pedal respectively;
the braking control module is used for acquiring the opening of a braking pedal, controlling the main vehicle braking module to brake the main vehicle according to the opening of the braking pedal, and controlling the trailer braking module to brake the trailer; and acquiring a user instruction and the state of the trailer, and determining whether to interrupt braking of the main vehicle by the main vehicle braking module according to the user instruction and the state of the trailer.
2. The system of claim 1, wherein the brake control module comprises:
the air cylinder is used for storing brake gas;
the first brake valve comprises an air inlet, a first air outlet, a second air outlet, a control end and a signal output end, wherein the air inlet of the first brake valve is connected with the air storage cylinder, the control end of the first brake valve is connected with the brake pedal, and the opening of the first air outlet of the first brake valve and the opening of the second air outlet of the first brake valve are respectively adjusted according to the opening of the brake pedal;
the stop valve comprises a first air inlet, a second air inlet, a first air outlet, a second air outlet and a control end, wherein the first air inlet of the stop valve is connected with the first air outlet of the first brake valve, the second air inlet of the stop valve is connected with the second air outlet of the first brake valve, and the first air outlet and the second air outlet of the stop valve are connected with the main vehicle brake module;
the second brake valve comprises an air inlet, a first air outlet, a second air outlet and a control end, the air inlet of the second brake valve is connected with the air storage cylinder, the first air outlet and the second air outlet of the second brake valve are connected with the trailer brake module, the control end of the second brake valve is connected with the signal output end of the first brake valve, and the second brake valve is used for respectively adjusting the opening of the first air outlet of the second brake valve and the opening of the second air outlet of the second brake valve according to the opening of the brake pedal;
and the controller is connected with the control end of the stop valve and used for controlling the opening and closing of the stop valve according to a user command and the state of the trailer.
3. The system of claim 2, wherein the master brake module comprises:
the main vehicle front wheel braking unit is connected with the first air outlet of the stop valve and is used for braking the front wheel of the main vehicle by adopting braking air discharged from the first air outlet of the stop valve;
and the main vehicle rear wheel braking unit is connected with the second air outlet of the stop valve and is used for braking the rear wheel of the main vehicle by adopting braking air discharged from the second air outlet of the stop valve.
4. The system of claim 2, wherein the trailer brake module comprises:
the front wheel braking unit of the trailer is connected with the first air outlet of the second braking valve and is used for braking the front wheel of the trailer by adopting braking air exhausted from the first air outlet of the second braking valve;
and the rear wheel braking unit of the trailer is connected with the second air outlet of the second braking valve and is used for braking the rear wheel of the trailer by adopting braking air discharged from the second air outlet of the second braking valve.
5. The system of any one of claims 1-4, wherein the system further comprises:
the interrupt switch is arranged on a steering wheel of the vehicle and is connected with the brake control module;
the brake control module is also used for determining the user instruction according to the opening and closing state of the interrupt switch.
6. The system of claim 5, wherein the interrupt switch is a self-resetting switch.
7. The system of any one of claims 1-4, wherein the system further comprises: the trailer connection switch is arranged on a saddle connected with the main vehicle and the trailer;
the brake control module is also electrically connected with the trailer connection switch and a brake anti-lock system of the trailer respectively and used for determining the connection state of the main vehicle and the trailer according to the opening and closing state of the trailer connection switch; and determining whether to interrupt the braking of the main vehicle by the main vehicle braking module according to the user instruction, the connection state of the main vehicle and the trailer and the running state of a braking anti-lock braking system of the trailer.
8. The system of claim 7, wherein the brake control module is configured to interrupt braking of the host vehicle by the host vehicle brake module if a connection state of the host vehicle and the trailer is normal and an operation state of a brake antilock system of the trailer is normal upon receiving a user command including interrupting braking of the host vehicle.
9. The system of claim 7, wherein the system further comprises:
and the display module is connected with the brake control module and used for displaying the control state of the brake control module on the main vehicle brake module, the connection state of the main vehicle and the trailer and the running state of a brake anti-lock system of the trailer.
10. A method of braking a vehicle, the vehicle including a host vehicle and a trailer coupled to the host vehicle, the method comprising:
acquiring the opening degree of a vehicle brake pedal;
braking the main vehicle according to the opening degree of the brake pedal;
braking the trailer according to the opening degree of the brake pedal;
and determining whether to stop braking the main vehicle according to the opening degree of the brake pedal according to the user command and the state of the trailer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310032378.9A CN116061906B (en) | 2023-01-10 | 2023-01-10 | Vehicle braking system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310032378.9A CN116061906B (en) | 2023-01-10 | 2023-01-10 | Vehicle braking system and method |
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| CN116061906A true CN116061906A (en) | 2023-05-05 |
| CN116061906B CN116061906B (en) | 2024-06-04 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0958442A (en) * | 1995-08-28 | 1997-03-04 | Jidosha Kiki Co Ltd | Air brake system on tractor side in tractor-trailer combination vehicle |
| CN104044571A (en) * | 2014-07-02 | 2014-09-17 | 江苏大学 | United brake system and method for combination vehicle |
| CN104768812A (en) * | 2012-09-17 | 2015-07-08 | 克诺尔商用车制动系统有限公司 | Brake control system for a utility vehicle having a trailer |
| US20190176842A1 (en) * | 2017-12-12 | 2019-06-13 | Eyal Cohen | Disengaging autonomous control of vehicle |
| CN113997916A (en) * | 2021-11-17 | 2022-02-01 | 安徽理工大学 | Air pressure electric control cooperative braking system for trailer |
-
2023
- 2023-01-10 CN CN202310032378.9A patent/CN116061906B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0958442A (en) * | 1995-08-28 | 1997-03-04 | Jidosha Kiki Co Ltd | Air brake system on tractor side in tractor-trailer combination vehicle |
| CN104768812A (en) * | 2012-09-17 | 2015-07-08 | 克诺尔商用车制动系统有限公司 | Brake control system for a utility vehicle having a trailer |
| CN104044571A (en) * | 2014-07-02 | 2014-09-17 | 江苏大学 | United brake system and method for combination vehicle |
| US20190176842A1 (en) * | 2017-12-12 | 2019-06-13 | Eyal Cohen | Disengaging autonomous control of vehicle |
| CN113997916A (en) * | 2021-11-17 | 2022-02-01 | 安徽理工大学 | Air pressure electric control cooperative braking system for trailer |
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| CN116061906B (en) | 2024-06-04 |
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