CN113044011A - Auxiliary braking method, controller and system for downhill road section - Google Patents
Auxiliary braking method, controller and system for downhill road section Download PDFInfo
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- CN113044011A CN113044011A CN201911374427.7A CN201911374427A CN113044011A CN 113044011 A CN113044011 A CN 113044011A CN 201911374427 A CN201911374427 A CN 201911374427A CN 113044011 A CN113044011 A CN 113044011A
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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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
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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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
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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
- B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
- B60T2201/03—Brake assistants
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses an auxiliary braking method, a controller and a system for a downhill road section, wherein the method comprises the following steps: when the vehicle runs on a downhill road section, monitoring a service braking signal is started; during the service braking signal monitoring period, controlling the first auxiliary brake and/or the second auxiliary brake to be started according to the sequence of the service braking signals to perform auxiliary braking on service braking, and starting the monitoring on the service acceleration signals; and controlling the first auxiliary brake and/or the second auxiliary brake in an opening state to be closed when the driving acceleration signal is monitored during the process of monitoring the driving acceleration signal. The invention can automatically identify the downhill road section, control the opening and closing of the engine brake and/or the retarder brake according to the braking behavior and the accelerating behavior of the driver, control the running speed of the vehicle on the downhill road section, and ensure the safety of the driver by an auxiliary braking method even if the service brake fails.
Description
Technical Field
The invention belongs to the technical field of application, and particularly relates to an auxiliary braking method for a downhill section, a storage medium, an auxiliary braking controller for the downhill section and an auxiliary braking system for the downhill section.
Background
Freight vehicles play an important role in the traffic and transportation industry of China and promote the economic growth of China. However, the driving safety of the freight vehicle, especially the large freight vehicle, on the downhill road is not optimistic, mainly because on the downhill road, if the driver frequently uses the service brake to control the vehicle speed, the service brake will overheat, the service braking efficiency will decline, and even the service brake will fail, so the service braking safety on the downhill road is greatly threatened.
At present, in order to improve the service braking safety of a downhill road section, auxiliary brakes such as an engine brake and a retarder brake are gradually applied to a large freight vehicle, but the auxiliary brakes are started mainly by the judgment and operation of a driver, so that certain requirements are provided for the judgment capability and the operation capability of the driver on the downhill road section, and if the judgment or the operation is incorrect, the braking efficiency is influenced, and even the vehicle is out of control.
There is a need for a method, a storage medium, a controller and a system for assisting braking of a downhill section.
Disclosure of Invention
The invention aims to solve the technical problem that the opening of the auxiliary brake in the prior art is judged and operated by a driver, so that the driving is unsafe.
In view of the above problems, the present invention provides an auxiliary braking method for a downhill section, a storage medium, an auxiliary braking controller for a downhill section, and an auxiliary braking system for a downhill section.
In a first aspect, the present invention provides a downhill section auxiliary braking method, applied to a downhill section auxiliary braking system, the downhill section auxiliary braking system including a first auxiliary brake and a second auxiliary brake mounted on a driving device, the method comprising the steps of:
when the vehicle runs on a downhill road section, monitoring a service braking signal is started;
during the service braking signal monitoring period, controlling the first auxiliary brake and/or the second auxiliary brake to be started according to the sequence of the service braking signals to perform auxiliary braking on service braking, and starting the monitoring on the service acceleration signals;
and controlling the first auxiliary brake and/or the second auxiliary brake in an opening state to be closed when the driving acceleration signal is monitored during the process of monitoring the driving acceleration signal.
According to an embodiment of the present invention, preferably, the method further comprises:
the method comprises the steps of utilizing a traffic sign picture collected by an image collecting device installed on a vehicle to identify;
and when the downhill road mark or the continuous downhill mark is identified from the collected traffic mark picture, judging that the vehicle runs on the downhill road section. .
According to an embodiment of the invention, preferably, the first auxiliary brake and/or the second auxiliary brake are controlled to be opened according to the sequence of monitoring the service brake signal to perform auxiliary braking on the service brake and to start monitoring the service acceleration signal, comprising the following steps:
when a service braking signal is monitored for the first time, controlling a first auxiliary brake to be started, carrying out auxiliary braking on service braking, and starting monitoring on a service acceleration signal;
when the service braking signal is monitored again, the second auxiliary brake is controlled to be started, so that the second auxiliary brake and the first auxiliary brake are kept in a starting state simultaneously, and service braking is assisted together.
According to an embodiment of the present invention, it is preferable that,
the first auxiliary brake is an engine brake, and the second auxiliary brake is a buffer brake; or, the first auxiliary brake is a buffer brake, and the second auxiliary brake is an engine brake.
According to an embodiment of the present invention, it is preferable that,
the engine brake adopts any one braking mode of exhaust braking, compression braking and air release braking to perform auxiliary braking; the damper brake includes a hydraulic retarder brake or an electromagnetic retarder brake.
According to an embodiment of the present invention, preferably, the method further comprises the steps of:
when the first auxiliary brake is started, the first auxiliary brake is started through a lamp and/or a voice prompt;
when the second auxiliary brake is opened, the first auxiliary brake and the second auxiliary brake are both opened through light and/or voice.
According to an embodiment of the present invention, preferably, the method further comprises the steps of:
when the first auxiliary brake and/or the second auxiliary brake are closed, the first auxiliary brake and/or the second auxiliary brake in the opening state is/are closed through a light and/or a voice.
In a second aspect, the invention provides a storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above method.
In a third aspect, the present invention provides a downhill section auxiliary brake controller comprising a storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above method.
In a fourth aspect, the present invention provides a downhill section auxiliary braking system, comprising:
an identification device for identifying whether the vehicle is traveling on a downhill section;
the accelerator pedal sensor is used for acquiring a driving acceleration signal;
the brake pedal sensor is used for acquiring a service brake signal;
a downhill section assist brake controller of a third aspect connected with the identification device, the accelerator pedal sensor, and the brake pedal sensor;
a first auxiliary brake connected with the downhill section auxiliary brake controller for performing auxiliary braking in response to control of the downhill section auxiliary brake controller;
and the second auxiliary brake is connected with the downhill road auxiliary brake controller and is used for responding to the control of the downhill road auxiliary brake controller to perform auxiliary braking.
According to an embodiment of the present invention, preferably, the apparatus further comprises:
the first auxiliary brake prompting lamp is connected with the downhill road section auxiliary brake controller and used for prompting the opening and closing of the first auxiliary brake through lamplight;
the second auxiliary brake prompting lamp is connected with the downhill road section auxiliary brake controller and used for prompting the opening and closing of the second auxiliary brake through lamplight;
and the voice prompter is connected with the downhill road section auxiliary brake controller and is used for prompting the opening and closing of the first auxiliary brake and the second auxiliary brake through voice.
Compared with the prior art, one or more embodiments in the above scheme can have the following advantages or beneficial effects:
by applying the auxiliary braking method for the downhill section, when a vehicle runs on the downhill section, monitoring of a driving braking signal is started; during the service braking signal monitoring period, controlling the first auxiliary brake and/or the second auxiliary brake to be started according to the sequence of the service braking signals to perform auxiliary braking on service braking, and starting the monitoring on the service acceleration signals; during the process of monitoring the driving acceleration signal, when the driving acceleration signal is monitored, the first auxiliary brake and/or the second auxiliary brake which is in an open state is controlled to be closed, when a downhill section is automatically identified, the opening and closing time of the engine brake, the retarder brake and the combined braking of the engine brake and the retarder brake can be controlled according to the braking behavior and the acceleration behavior of a driver, the driving speed of a vehicle on the downhill section is controlled, and even if the driver frequently uses the driving brake to cause the failure of braking, the safety of the driver can be ensured through an auxiliary braking method.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 shows a flow chart of a method for assisting braking of a downhill segment in accordance with an embodiment of the present invention;
FIG. 2 is a flow chart of an auxiliary braking method for a second downhill section according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an auxiliary braking system for a five-downhill road section according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of an auxiliary braking system for a six-downhill road section according to an embodiment of the present invention;
fig. 5 shows a detailed structural diagram of an auxiliary braking system for a six-downhill road section according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.
Example one
In order to solve the above technical problems in the prior art, an embodiment of the present invention provides a method for assisting braking on a downhill section, wherein, in the present embodiment, a first auxiliary brake is an engine brake, and a second auxiliary brake is a buffer brake.
Referring to fig. 1, the downhill section auxiliary braking method of the present embodiment includes the following steps:
s110, identifying a traffic sign picture collected by an image collecting device arranged on a vehicle;
s120, monitoring whether a downhill road mark or a continuous downhill mark is identified in real time:
if yes, starting monitoring the service braking signal, and executing the step S130;
if not, no response is given;
s130, judging whether a service braking signal is monitored in real time:
if yes, go to step S140;
if not, no response is given;
s140, judging whether the current service braking signal is monitored for the first time:
if yes, go to step S150;
if not, go to step S160;
s150, controlling an engine brake to be started, carrying out auxiliary braking on the service brake, prompting that the engine brake is started through light and/or voice, returning to the step S130, and starting monitoring on a service acceleration signal;
s160, controlling the buffer brake to be opened, enabling the buffer brake and the engine brake to be kept in an opening state at the same time, carrying out auxiliary braking on service braking together, prompting that the engine brake and the buffer brake are opened through light and/or voice, and starting monitoring on a service acceleration signal;
s170, judging whether a driving acceleration signal is monitored in real time:
if yes, go to step S180;
if not, no response is given;
and S180, controlling the engine brake and/or the buffer brake in the opening state to be closed, and prompting that the engine brake and the buffer brake in the opening state are closed through lights and/or voices.
The engine brake adopts any one braking mode of exhaust braking, compression braking and air release braking to perform auxiliary braking.
The buffer brake is a hydraulic retarder brake or an electromagnetic retarder brake.
In particular, when the downhill section intelligent auxiliary braking method of the present embodiment is applied to a heavy vehicle, a hydraulic retarder brake is preferable as the damper brake.
The method of identifying whether the vehicle is traveling on the downhill section in steps S110 and S120 may be replaced by: and identifying whether the vehicle runs on a downhill road section by using the three-axis acceleration sensor and the three-axis gyroscope.
In the intelligent auxiliary braking method for the downhill section, the invention can automatically control the auxiliary brake to be turned on and off according to the road running environment and the driving operation characteristics of the driver, the driver is not required to turn on and turn off the auxiliary brake, a safer and more reliable auxiliary braking method is provided for the driver, and the braking effect can be achieved even under the condition that the driving brake fails.
The auxiliary braking method for the downhill section of the embodiment realizes the automatic identification of the downhill section, can automatically control the auxiliary brake to be turned on and off according to the driving behavior of the driver, simplifies the operation behavior of the driver on the downhill section, realizes the auxiliary automatic control of the running speed of the vehicle, particularly the heavy vehicle, on the downhill section, and can ensure the braking effect even under the condition that the brake is failed due to the frequent use of the service brake by the driver.
Example two
In order to solve the technical problems in the prior art, an embodiment of the present invention provides a method for assisting braking on a downhill section, wherein, in the present embodiment, a first auxiliary brake is a buffer brake, and a second auxiliary brake is an engine brake.
Referring to fig. 2, the downhill section auxiliary braking method of the present embodiment includes the following steps:
s210, identifying a traffic sign picture collected by an image collecting device arranged on a vehicle;
s220, monitoring whether a downhill road mark or a continuous downhill mark is identified in real time:
if yes, starting monitoring the service braking signal, and executing step S230;
if not, no response is given;
s230, judging whether a service braking signal is monitored in real time:
if yes, go to step S240;
if not, no response is given;
s240, judging whether the current service braking signal is monitored for the first time:
if yes, go to step S250;
if not, go to step S260;
s250, controlling the buffer brake to be started, carrying out auxiliary braking on the service brake, prompting that the buffer brake is started through light and/or voice, returning to the step S230, and starting monitoring on the service acceleration signal;
s260, controlling an engine brake to be started, enabling the engine brake and a buffer brake to be kept in a starting state at the same time, carrying out auxiliary braking on service braking together, prompting that the engine brake and the buffer brake are started through light and/or voice, and starting monitoring on a service acceleration signal;
s270, judging whether a driving acceleration signal is monitored in real time:
if yes, go to step S280;
if not, no response is given;
and S280, controlling the engine brake and/or the buffer brake in the opening state to be closed, and prompting that the engine brake and the buffer brake in the opening state are closed through lights and/or voices.
The engine brake adopts any one braking mode of exhaust braking, compression braking and air release braking to perform auxiliary braking.
The buffer brake is a hydraulic retarder brake or an electromagnetic retarder brake.
In particular, when the downhill section intelligent auxiliary braking method of the present embodiment is applied to a heavy vehicle, a hydraulic retarder brake is preferable as the damper brake.
In the intelligent auxiliary braking method for the downhill section, the invention can automatically control the auxiliary brake to be turned on and off according to the road running environment and the driving operation characteristics of the driver, the driver is not required to turn on and turn off the auxiliary brake, a safer and more reliable auxiliary braking method is provided for the driver, and the braking effect can be achieved even under the condition that the driving brake fails.
The auxiliary braking method for the downhill section of the embodiment realizes the automatic identification of the downhill section, can automatically control the auxiliary brake to be turned on and off according to the driving behavior of the driver, simplifies the operation behavior of the driver on the downhill section, realizes the auxiliary automatic control of the running speed of the vehicle, particularly the heavy vehicle, on the downhill section, and can ensure the braking effect even under the condition that the brake is failed due to the frequent use of the service brake by the driver.
EXAMPLE III
In order to solve the above technical problems in the prior art, an embodiment of the present invention further provides a storage medium.
The storage medium of the present embodiment has stored thereon a computer program that, when executed by a processor, implements the steps of the downhill road auxiliary braking method in the above-described embodiments.
Example four
In order to solve the technical problems in the prior art, the embodiment of the invention also provides an auxiliary brake controller for a downhill section.
The controller for assisting braking on a downhill road according to this embodiment includes a storage medium and a processor, where the storage medium stores a computer program, and the computer program is executed by the processor to implement the steps of the method for assisting braking on a downhill road according to the above-mentioned embodiment.
EXAMPLE five
In order to solve the technical problems in the prior art, the embodiment of the invention also provides an auxiliary braking system for a downhill section.
Referring to fig. 3, an auxiliary braking system for a downhill section according to an embodiment of the present invention includes:
an identification device for identifying whether the vehicle is traveling on a downhill section;
the accelerator pedal sensor is used for acquiring a driving acceleration signal;
the brake pedal sensor is used for acquiring a service brake signal;
the downhill path auxiliary brake controller according to the fourth embodiment, which is connected with the identification device, the accelerator pedal sensor, and the brake pedal sensor;
a first auxiliary brake connected with the downhill section auxiliary brake controller for performing auxiliary braking in response to control of the downhill section auxiliary brake controller;
a second auxiliary brake connected with the downhill section auxiliary brake controller for performing auxiliary braking in response to control of the downhill section auxiliary brake controller;
the first auxiliary brake prompting lamp is connected with the downhill road section auxiliary brake controller and used for prompting the opening and closing of the first auxiliary brake through lamplight;
the second auxiliary brake prompting lamp is connected with the downhill road section auxiliary brake controller and used for prompting the opening and closing of the second auxiliary brake through lamplight;
and the voice prompter is connected with the downhill road section auxiliary brake controller and is used for prompting the opening and closing of the first auxiliary brake and the second auxiliary brake through voice.
Wherein the arrows in fig. 3 indicate the data transmission direction.
The first auxiliary brake is an engine brake, and the second auxiliary brake is a buffer brake.
Optionally, the first auxiliary brake is a damper brake and the second auxiliary brake is an engine brake.
The engine brake adopts any one braking mode of exhaust braking, compression braking and air release braking to perform auxiliary braking.
The buffer brake is a hydraulic retarder brake or an electromagnetic retarder brake.
In particular, when the intelligent auxiliary braking system for a downhill section of the present embodiment is applied to a heavy vehicle, a hydraulic retarder brake is preferable as the damper brake.
In the intelligent auxiliary braking system for the downhill section, the invention can automatically control the auxiliary brake to be turned on and off according to the road running environment and the driving operation characteristics of the driver, the driver is not required to turn on and turn off the auxiliary brake, a safer and more reliable auxiliary braking method is provided for the driver, and the braking effect can be achieved even under the condition that the driving brake fails.
EXAMPLE six
In order to solve the technical problems in the prior art, the embodiment of the invention also provides an auxiliary braking system for a downhill section.
Referring to fig. 4, an auxiliary braking system for a downhill section according to an embodiment of the present invention includes:
the data acquisition part comprises a recognition device, an accelerator pedal sensor and a brake pedal sensor, wherein the recognition device is used for recognizing a downhill mark, the accelerator pedal sensor is used for detecting a signal that a driver steps on a speed reduction pedal, and the brake pedal sensor is used for acquiring a signal that the driver steps on a brake pedal.
The control part comprises a driving computer, is connected with the data acquisition part through a data line and is used for receiving driving environment and driver operation behavior signals and controlling the execution part and the prompt part.
And the execution part comprises an engine brake and a retarder brake and is used for controlling the running speed of the vehicle on the downhill section. The engine brake and the retarder brake are respectively connected with the traveling crane computer through data lines.
And the prompting part comprises a voice prompting device and a light prompting device, when the engine brake and the retarder brake start to work, the prompting part respectively prompts the driver to assist the brake to be in a working state through voice and light, and when the engine brake and the retarder brake stop to work, the prompting part prompts the driver to assist the brake to stop working through voice and light. The voice prompter and the light prompter are respectively connected with the traveling crane computer through data lines.
Wherein the arrows in fig. 4 indicate the data transmission direction.
Referring to fig. 5, the engine brake includes a diesel ECU (Electronic Control Unit) and an exhaust brake valve.
The retarder brake includes a retarder ECU and a retarder.
The light prompter comprises a diesel engine braking prompting lamp and a speed reducer braking prompting lamp.
Wherein the arrows in fig. 5 indicate the data transmission direction.
In the auxiliary braking system for the downhill section provided by the embodiment of the invention, the identification device identifies whether the vehicle runs on the downhill section by monitoring whether the downhill road mark and the continuous downhill mark are monitored, and the working principle is as follows:
during driving, the recognition device automatically recognizes the road traffic sign, and when the downhill sign is detected, the downhill sign is sent to a driving computer. At this time, the process of the present invention,
(1) the running computer starts to detect a brake signal of a driver, and after the brake pedal sensor sends the brake signal of the driver to the running computer, the running computer controls the diesel engine ECU to start the exhaust brake valve, and meanwhile, the diesel engine brake indicator lamp is turned on and reports 'the engine brake is turned on' through the voice prompter;
(2) after the engine brake is started, when the traveling computer detects the brake signal of the driver again, the traveling computer controls the retarder ECU to start the retarder, and meanwhile, the retarder brake prompt lamp is turned on and reports that the retarder brake is started through the voice prompt device;
(3) when the driving computer detects a driving acceleration signal of a driver, the driving computer controls the diesel engine ECU and the retarder ECU to respectively close the exhaust brake valve and the retarder and close the diesel engine brake prompting lamp and the retarder brake prompting lamp to broadcast that the auxiliary brake system is closed through the voice prompter.
The auxiliary braking system for the downhill road section automatically identifies the downhill road section through the identification device, starts the engine brake when a driver steps on a brake pedal for the first time, and prompts the driver that the engine brake is started through voice and light; in the process of driving on a downhill road section, if the driver steps on the brake pedal again, the retarder brake is started, and the driver is prompted through voice and light that the retarder brake is started; after the downhill section is finished, when a driver steps on an accelerator pedal, the engine brake and the retarder brake stop working, and the driver is prompted through voice and light that the auxiliary brake is turned off.
The auxiliary braking system for the downhill section of the embodiment realizes automatic identification of the downhill section, can automatically control the auxiliary brake to be turned on and off according to the driving behavior of the driver, simplifies the operation behavior of the driver on the downhill section, realizes the auxiliary automatic control of the running speed of the vehicle, particularly a heavy vehicle, on the downhill section, and can ensure the braking effect even under the condition that the brake fails due to frequent use of a service brake by the driver.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. An auxiliary braking method for a downhill section, which is applied to an auxiliary braking system for a downhill section, the auxiliary braking system for a downhill section including a first auxiliary brake and a second auxiliary brake mounted on a service drive, the method comprising the steps of:
when the vehicle runs on a downhill road section, monitoring a service braking signal is started;
during the service braking signal monitoring period, controlling the first auxiliary brake and/or the second auxiliary brake to be started according to the sequence of the service braking signals to perform auxiliary braking on service braking, and starting the monitoring on the service acceleration signals;
and controlling the first auxiliary brake and/or the second auxiliary brake in an opening state to be closed when the driving acceleration signal is monitored during the process of monitoring the driving acceleration signal.
2. The method of claim 1, further comprising:
the method comprises the steps of utilizing a traffic sign picture collected by an image collecting device installed on a vehicle to identify;
and when the downhill road mark or the continuous downhill mark is identified from the collected traffic mark picture, judging that the vehicle runs on the downhill road section.
3. A method according to claim 1, characterised in that controlling the first auxiliary brake and/or the second auxiliary brake to be open for auxiliary braking of the service brakes and for opening monitoring of the service acceleration signals in dependence of the order in which the service braking signals are monitored comprises the steps of:
when a service braking signal is monitored for the first time, controlling a first auxiliary brake to be started, carrying out auxiliary braking on service braking, and starting monitoring on a service acceleration signal;
when the service braking signal is monitored again, the second auxiliary brake is controlled to be started, so that the second auxiliary brake and the first auxiliary brake are kept in a starting state simultaneously, and service braking is assisted together.
4. The method of claim 3,
the first auxiliary brake is an engine brake, and the second auxiliary brake is a buffer brake; or, the first auxiliary brake is a buffer brake, and the second auxiliary brake is an engine brake.
5. The method of claim 4,
the engine brake adopts any one braking mode of exhaust braking, compression braking and air release braking to perform auxiliary braking; the damper brake includes a hydraulic retarder brake or an electromagnetic retarder brake.
6. The method according to claim 3, characterized in that the method further comprises the steps of:
when the first auxiliary brake is started, the first auxiliary brake is started through a lamp and/or a voice prompt;
when the second auxiliary brake is opened, the first auxiliary brake and the second auxiliary brake are both opened through light and/or voice.
7. The method of claim 6, further comprising the steps of:
when the first auxiliary brake and/or the second auxiliary brake are closed, the first auxiliary brake and/or the second auxiliary brake in the opening state is/are closed through a light and/or a voice.
8. A storage medium on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
9. A downhill section supplementary brake controller, comprising a storage medium and a processor, characterized in that the storage medium has stored thereon a computer program which, when being executed by the processor, carries out the steps of the method according to any one of claims 1 to 7.
10. An auxiliary braking system for a downhill section, comprising:
an identification device for identifying whether the vehicle is traveling on a downhill section;
the accelerator pedal sensor is used for acquiring a driving acceleration signal;
the brake pedal sensor is used for acquiring a service brake signal;
a downhill section assist brake controller as claimed in claim 9, connected with the identification device, the accelerator pedal sensor and the brake pedal sensor;
a first auxiliary brake connected with the downhill section auxiliary brake controller for performing auxiliary braking in response to control of the downhill section auxiliary brake controller;
and the second auxiliary brake is connected with the downhill road auxiliary brake controller and is used for responding to the control of the downhill road auxiliary brake controller to perform auxiliary braking.
11. The downhill path auxiliary braking system of claim 10, further comprising:
the first auxiliary brake prompting lamp is connected with the downhill road section auxiliary brake controller and used for prompting the opening and closing of the first auxiliary brake through lamplight;
the second auxiliary brake prompting lamp is connected with the downhill road section auxiliary brake controller and used for prompting the opening and closing of the second auxiliary brake through lamplight;
and the voice prompter is connected with the downhill road section auxiliary brake controller and is used for prompting the opening and closing of the first auxiliary brake and the second auxiliary brake through voice.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911374427.7A CN113044011A (en) | 2019-12-27 | 2019-12-27 | Auxiliary braking method, controller and system for downhill road section |
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| CN201911374427.7A CN113044011A (en) | 2019-12-27 | 2019-12-27 | Auxiliary braking method, controller and system for downhill road section |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011138097A1 (en) * | 2010-05-06 | 2011-11-10 | Zf Friedrichshafen Ag | Method for operating a drive train |
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| CN205554165U (en) * | 2016-02-22 | 2016-09-07 | 陕西同力重工股份有限公司 | Auxiliary brake's of vehicle control system |
| CN106004838A (en) * | 2016-06-23 | 2016-10-12 | 吉林大学 | Auxiliary downhill control system and control method based on retarder |
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| CN107738579A (en) * | 2017-11-14 | 2018-02-27 | 长安大学 | A kind of heavy goods vehicle lower long slope method of controlling security |
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Application publication date: 20210629 |