CN113799759A - Brake auxiliary system and vehicle with same - Google Patents
Brake auxiliary system and vehicle with same Download PDFInfo
- Publication number
- CN113799759A CN113799759A CN202111192221.XA CN202111192221A CN113799759A CN 113799759 A CN113799759 A CN 113799759A CN 202111192221 A CN202111192221 A CN 202111192221A CN 113799759 A CN113799759 A CN 113799759A
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- brake
- parking
- air chamber
- temperature
- controller
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- 239000002131 composite material Substances 0.000 claims description 8
- 230000003137 locomotive effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000013021 overheating Methods 0.000 abstract description 7
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction 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
- 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
- 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
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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
- 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
Abstract
The invention discloses a brake auxiliary system and a vehicle with the same, wherein the brake auxiliary system comprises: a brake for braking the vehicle and having a pedal and a friction plate; a pedal position sensor for detecting a position of the pedal; the temperature sensor is used for detecting the temperature of the friction plate; the controller is respectively connected with the pedal position sensor and the temperature sensor and is used for receiving a pedal position signal detected by the pedal position sensor and a friction plate temperature signal detected by the temperature sensor; the controller receives a pedal position signal when the temperature signal of the friction plate reaches a first preset high temperature, and controls the brake to increase the braking force according to the pedal position signal. According to the brake auxiliary system provided by the embodiment of the invention, extra braking force can be provided under the condition of brake overheating, and the brake auxiliary system has the advantages of excellent braking performance, high safety and the like.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a brake auxiliary system and a vehicle with the same.
Background
Some vehicles in the related art have brake assist systems such as exhaust disc brakes, engine brakes, retarders, etc. However, the brake auxiliary system still needs to frequently participate in service braking under complex road conditions, so that friction plates of the brake still overheat to generate heat fading, and the traffic safety is affected due to poor braking effect. For the condition that the friction plate of the brake has reached the overhigh temperature, the brake auxiliary system cannot further provide good braking force, and the friction plate of the brake works under the condition of the overhigh temperature, so that the brake failure is easily caused to generate potential safety hazards.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a brake auxiliary system which can provide extra braking force under the condition of brake overheating and has the advantages of excellent braking performance, high safety and the like.
The invention also provides a vehicle with the brake auxiliary system.
To achieve the above object, an embodiment according to a first aspect of the present invention proposes a brake assist system including: a brake for braking a vehicle and having a pedal and a friction plate; a pedal position sensor for detecting a position of the pedal; the temperature sensor is used for detecting the temperature of the friction plate; the controller is respectively connected with the pedal position sensor and the temperature sensor and is used for receiving a pedal position signal detected by the pedal position sensor and a friction plate temperature signal detected by the temperature sensor; the controller receives a pedal position signal when the temperature signal of the friction plate reaches a first preset high temperature, and controls the brake to increase the braking force according to the pedal position signal.
According to the brake auxiliary system provided by the embodiment of the invention, extra braking force can be provided under the condition of brake overheating, and the brake auxiliary system has the advantages of excellent braking performance, high safety and the like.
According to some specific embodiments of the invention, the brake comprises: the composite air chamber comprises a parking air chamber and a traveling air chamber; the travelling air storage cylinder is communicated with the travelling air chamber through a first pipeline; the parking air cylinder is communicated with the parking air chamber through a second pipeline, and the controller controls the parking air chamber to exhaust and controls the driving air chamber to intake so as to increase the braking force of the brake.
Furthermore, a parking spring is arranged in the parking air chamber and connected with a push rod penetrating through the parking air chamber and the driving air chamber, a push rod extending away from the parking air chamber is arranged in the driving air chamber, and the push rod pushes the push rod to move through the parking spring so as to increase the braking force of the brake.
According to some embodiments of the invention, the controller is connected with a control valve, the control valve is connected between the composite air chamber and the parking air cylinder, and the control valve controls the on-off of the parking air cylinder and the parking air chamber and controls the on-off of the parking air chamber and the atmosphere.
Further, the control valve is two-position three-way electromagnetic valve, the control valve has air inlet, gas vent and gas outlet, the air inlet with parking gas receiver intercommunication, the gas outlet with parking air chamber intercommunication, gas vent and atmosphere intercommunication, controller control the control valve is closed the air inlet is just opened the gas outlet with during the gas vent, parking gas receiver with parking air chamber disconnection intercommunication just with atmosphere intercommunication in the parking air chamber.
According to some specific embodiments of the invention, the brake assist system further comprises: the indicator light is connected with the controller, the controller controls the indicator light to flicker at a low frequency when the brake temperature signal reaches the first preset high temperature, and the controller controls the indicator light to flicker at a high frequency when the brake temperature signal reaches the second preset high temperature; wherein the first predetermined high temperature is higher than the second predetermined high temperature.
Further, the first preset high temperature is a temperature measured when the friction coefficient of the friction plate is reduced to 55% -65%, and the second preset high temperature is a temperature measured when the friction coefficient of the friction plate is reduced to 75% -85%.
According to some embodiments of the invention, after the controller receives the friction plate temperature signal and reaches the first preset high temperature, and when the controller receives the pedal position signal and reaches a preset limit position, the controller controls the brake to increase the braking force.
An embodiment according to a second aspect of the invention proposes a vehicle comprising: the brake assist system according to an embodiment of the first aspect of the invention.
According to the vehicle provided by the embodiment of the invention, the brake auxiliary system provided by the embodiment of the invention can provide extra braking force under the condition of brake overheating, and has the advantages of excellent braking performance, high safety and the like.
According to some specific embodiments of the invention, the vehicle further comprises: and the anti-lock brake system is connected with the controller, and the controller closes the control of increasing the braking force of the brake when the anti-lock brake system is triggered.
According to some specific embodiments of the invention, the vehicle further comprises: the locomotive is provided with the brake auxiliary system; the trailer is connected to the vehicle head, the trailer and the vehicle head are in linkage braking with each other, and the trailer is provided with the braking auxiliary system.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a brake assist system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a composite air chamber of a brake assist system according to an embodiment of the present invention.
Reference numerals:
brake assist system 1, brake 100, pedal 101, friction plate 102, pedal position sensor 200, brake pedal,
A temperature sensor 300, a controller 400, an indicator lamp 500,
A traveling air cylinder 110, a parking air cylinder 120, a hand brake valve 130, a parking relay valve 140, a foot brake valve 150, a traveling relay valve 160, a composite air chamber 170, a traveling air chamber 171, a parking air chamber 172, a first pipe 111, a second pipe 140, a third pipe 150, a fourth pipe 150, a fifth pipe, a sixth pipe, a seventh pipe, a sixth pipe, a fourth pipe, a sixth pipe, a fifth pipe, a sixth pipe, a fifth pipe, a sixth,
an air outlet 412 and an air outlet 413.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
A brake assist system 1 according to an embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1 and 2, a brake assist system 1 according to an embodiment of the present invention includes a brake 100, a pedal position sensor 200, a temperature sensor 300, and a controller 400. Wherein the broken line connecting portion as shown in fig. 1 indicates the brake 100.
The brake 100 is used for braking a vehicle and has a pedal 101 and a friction plate 102. The pedal position sensor 200 is used to detect the position of the pedal 101. The temperature sensor 300 is used to detect the temperature of the friction plate 102. The controller 400 is connected to the pedal position sensor 200 and the temperature sensor 300, respectively, and is configured to receive a pedal position signal detected by the pedal position sensor 200 and a temperature signal of the friction plate 102 detected by the temperature sensor 300.
When the temperature signal of the friction plate 102 received by the controller 400 reaches a first preset high temperature, the controller 400 receives a pedal position signal, and the controller 400 controls the brake 100 to increase the braking force according to the pedal position signal.
For example, each wheel is provided with a friction plate 102, and the temperature of the friction plate 102 of each wheel is detected by a temperature sensor 300, and the temperature sensor 300 directly contacts with the friction plate 102 to detect the temperature and output a signal to the controller 400.
When the controller 400 receives a temperature signal of one of the friction plates 102 and reaches a first preset high temperature, which indicates that the braking performance of the brake 100 has decreased at this time, the controller 400 receives a pedal position signal, specifically, a pedal position, which is an opening degree of the pedal 101 stepped on by the driver, after the driver steps on the pedal 101, the friction plate 102 contacts with a brake disc to generate braking force, and the controller 400 controls the brake 100 to further increase the current opening degree of the pedal 101 according to the pedal position signal when the brake 101 is stepped on to generate braking force. Further, the controller 400 is connected to a controller area network so that the controller 400 can receive different signals transmitted from a plurality of sensors such as the pedal position sensor 200 and the temperature sensor 300.
According to some embodiments of the present invention, the temperature sensor 300 detects the temperature of the friction plate 102, the temperature signal of the friction plate 102 is monitored in real time, the controller 400 receives the signal, and when the friction plate 102 reaches a first preset high temperature, the braking performance of the brake 100 is reduced, in order to avoid that the braking performance cannot meet the braking requirement due to the over-high temperature of the friction plate 102, the pedal position sensor 200 detects the pedal position signal in time, and the controller 400 receives the pedal position signal, so as to accurately obtain the intention of the user, when the opening degree of the pedal 101 stepped by the driver reaches a preset position according to the pedal position signal received by the controller 400, the controller 400 judges that the intention of the driver is full-force braking, and provides additional braking force for the brake 100 in time when the opening degree of the pedal 101 is reached, so as to ensure the driving safety of the vehicle.
Therefore, the brake assist system 1 according to the embodiment of the present invention can provide an extra braking force under the condition of brake overheating, and has the advantages of excellent braking performance, high safety, and the like.
In some embodiments of the present invention, as shown in fig. 1 and 2, the brake 100 includes a compound air chamber 170, a service air cylinder 110 and a parking air cylinder 120.
The composite air chamber 170 includes a parking air chamber 172 and a traveling air chamber 171. The traveling air cylinder 110 is communicated with the traveling air chamber 171 through the first pipeline 111. The parking cylinder 120 communicates with the parking air chamber 172 through the second pipe 112, and the controller 400 increases the braking force of the brake 100 by controlling the parking air chamber 172 to exhaust air and the service air chamber 171 to intake air.
The air in the parking air chamber 172 and the driving air chamber 171 are isolated from each other, the driving air cylinder 110 supplies air to the driving air chamber 171 through the first pipeline 111, and the parking air cylinder 120 supplies air to the parking air chamber 172 through the second pipeline 112.
The first pipe 111 may discharge the gas in the traveling air chamber 171, and the second pipe 112 may discharge the gas in the parking air chamber 172. Thereby, the intake and exhaust of the air in the service air chamber 171 and the parking air chamber 172 can be controlled to increase the braking force of the brake 100.
A foot valve 150 and a service relay valve 160 are connected to the first pipe 111, and a hand valve 130 and a parking relay valve 140 are connected to the second pipe 112. The traveling relay valve 160 controls the on/off of the traveling air cylinder 110 and the traveling air chamber 171 through the foot valve 150, and the parking relay valve 140 controls the on/off of the parking air cylinder 120 and the parking air chamber 172 through the hand valve 130.
When the vehicle normally runs, the running air chamber 171 is in communication with the atmosphere, and the parking air chamber 172 is in communication with the parking air cylinder 120. When the vehicle needs braking during running, the running air storage cylinder 110 supplies air to the running air chamber 171, the parking air chamber 172 is communicated with the atmosphere, so that the running air chamber 171 is inflated, meanwhile, the parking air chamber 172 is deflated, and at the moment, the braking force of the brake 100 is improved.
Further, as shown in fig. 2, a parking spring 173 is disposed in the parking air chamber 172, a push rod 174 penetrating the parking air chamber 172 and the service air chamber 171 is connected to the parking spring 173, a push rod 175 extending away from the parking air chamber 172 is disposed in the service air chamber 171, and the push rod 174 pushes the push rod 175 to move through the parking spring 173, thereby increasing the braking force of the brake 100.
For example, the carrier rod 175 is connected to the friction plate 102, and the braking force is generated by the contact between the friction plate 102 and the brake disc. When the vehicle normally runs, the parking air cylinder 120 supplies air to the parking air chamber 172, so that the parking spring 173 in the parking air chamber 172 is compressed by the extrusion of the air in the parking air chamber 172, the parking spring 173 cannot push the push rod 174 and the ejector rod 175 to move, meanwhile, the running air cylinder 110 does not supply air to the running air chamber 171, the running air chamber 171 is communicated with the atmosphere, and the ejector rod 175 cannot extend out of the parking air chamber 172 due to the air in the running air chamber 171, so that the brake 100 does not generate braking force.
When the vehicle needs to be braked, the controller 400 receives a pedal position signal, and then controls the service air cylinder 110 to deliver air into the air in the service air chamber 171, and the air in the service air chamber 171 pushes out and moves the ejector rod 175 away from the parking air chamber 172. While the controller 400 controls to lower the air pressure of the parking air chamber 172, at which time the parking spring 173 is restored in length due to the release of the air in the parking air chamber, the parking spring 173 extends and moves the plunger 175 away from the parking air chamber 172 through the push rod 174. The ejector rod 175 is driven by the driving air chamber 171 and the parking air chamber 172 to extend and move towards one side far away from the parking air chamber 172, and the ejector rod 175 ejects the friction plate 102, so that the friction plate 102 and a brake disc generate higher pressure, and the friction plate 102 and the brake disc are further lifted to generate higher braking force, so that the braking force loss caused by the fact that the temperature of the friction plate 102 is too high is made up.
In some embodiments of the present invention, as shown in fig. 1, the controller 400 is connected to a control valve 410, the control valve 410 is connected between the composite air chamber 170 and the parking air cylinder, and the control valve 410 controls the parking air cylinder 120 to be opened and closed with the parking air chamber 172 and controls the parking air chamber 172 to be opened and closed with the atmosphere.
When the parking air cylinder 120 is disconnected from the parking air chamber 172, the parking air chamber 172 is communicated with the atmosphere, the air in the parking air chamber 172 can be discharged to the atmosphere, and at the moment, the parking spring 173 is further released to recover the length, so that the push rod 174 pushes the push rod 175 to move, and the pressure applied by the friction plate 102 is lifted, thereby lifting the braking force of the brake 100.
Further, as shown in fig. 1, the control valve 410 is a two-position three-way solenoid valve, the control valve 410 has an air inlet 411, an air outlet 413 and an air outlet 412, the air inlet 411 is communicated with the parking air cylinder 120, the air outlet 412 is communicated with the parking air chamber 172, the air outlet 413 is communicated with the atmosphere, the controller 400 controls the control valve 410 to close the air inlet 411 and open the air outlet 412 and the air outlet 413, the parking air cylinder 120 is disconnected from the parking air chamber 172, and the interior of the parking air chamber 172 is communicated with the atmosphere.
The control valve 410 is a two-position three-way solenoid valve having two states, i.e., a state in which the air inlet 411 is communicated with the air outlet 412, and a state in which the air outlet 412 is communicated with the air outlet 413. When the vehicle normally runs, the air inlet 411 is communicated with the air outlet 412, so that the parking air storage cylinder 120 supplies air to the parking air chamber 172, and at the moment, the air in the parking air chamber 172 compresses the parking spring 173, so that the push rod 174 cannot be ejected out, and the brake is not generated. When the vehicle needs to be braked, the air outlet 412 is communicated with the air outlet 413, so that the interior of the parking air chamber 172 is communicated with the atmosphere, the air in the parking air chamber 172 is discharged in time, the length of the parking spring 173 is recovered due to the reduction of the air pressure in the parking air chamber 172, and the ejector rod 175 is pushed to lift the brake 100 to generate braking force.
In some embodiments of the present invention, as shown in fig. 1, the brake assist system 1 further includes an indicator light 500.
The indicator lamp 500 is connected to the controller 400, the controller 400 controls the indicator lamp 500 to blink at a low frequency when the temperature signal of the brake 100 reaches a first preset high temperature, and the controller 400 controls the indicator lamp 500 to blink at a high frequency when the temperature signal of the brake 100 reaches a second preset high temperature. Wherein the first predetermined high temperature is higher than the second predetermined high temperature.
Specifically, when the controller 400 blinks at a relatively large time interval when the temperature signal of the brake 100 reaches the first preset high temperature, the indicator lamp 500 prompts the driver to stop at an appropriate timing to cool the brake 100. When the temperature signal of the brake 100 reaches the second preset high temperature, the indicator lamp 500 flickers at a small time interval to remind the driver to stop the vehicle immediately, so that the brake 100 is prevented from being out of order due to the further increase of the temperature of the friction plate 102, and meanwhile, the brake 100 is controlled by the controller 400 according to the pedal position signal to increase the braking force, so that accidents are avoided.
Further, the first preset high temperature is a temperature measured when the friction coefficient of the friction plate 102 is reduced to 55% to 65%, and the second preset high temperature is a temperature measured when the friction coefficient of the friction plate 102 is reduced to 75% to 85%.
It is understood that the temperature at which the friction coefficient of the friction plate 102 is reduced to 55% -65% and reduced to 75% -85% is obtained by pre-testing, that is, the friction coefficient of the friction plate 102 is reduced to 55% -65% when the temperature of the friction plate 102 reaches the first preset temperature, and the friction coefficient of the friction plate 102 is reduced to 75% -85% when the temperature of the friction plate 102 reaches the second preset temperature.
By relating the temperature of the friction plate 102 to the friction coefficient of the friction plate 102, the timing of the blinking of the indicator light 500 at a high frequency or a low frequency and the timing of the further increase of the braking force can be controlled more accurately by the controller 400. When the friction coefficient of the friction plate 102 is reduced to 55% -65%, the braking force of the brake 100 is controlled to be increased, and the control indicator lamp 500 flickers at a high frequency to remind a driver of stopping the vehicle immediately, so that accidents caused by the failure of the brake 100 are prevented. When the friction coefficient of the friction plate 102 is reduced to 75% -85%, the low-frequency flickering indicator lamp 500 is controlled to flicker to remind a driver to stop at a proper time to cool the brake 100.
In some embodiments of the present invention, after the controller 400 receives the temperature signal of the friction plate 102 to reach the first preset high temperature, and when the pedal position signal reaches the preset limit position, the controller 400 controls the brake 100 to increase the braking force.
At this time, the position of the pedal 101 reaches the maximum opening, and the controller 400 determines that the intention of the driver is full force braking at this time, and increases the opening of the pedal 101 in time to provide additional braking force for the brake 100, so as to ensure the safety of vehicle running.
A vehicle according to an embodiment of the invention is described below.
The vehicle according to the embodiment of the invention includes the brake assist system 1 according to the invention described above.
According to the vehicle provided by the embodiment of the invention, by adopting the brake auxiliary system 1 provided by the embodiment of the invention, extra braking force can be provided under the condition of brake overheating, and the vehicle has the advantages of excellent braking performance, high safety and the like.
Further, the vehicle further includes an anti-lock brake system.
The anti-lock brake system is connected to the controller 400, and the controller 400 turns off the control of increasing the braking force of the brake 100 when the anti-lock brake system is activated. When the anti-lock system is triggered, the control of the braking force of the brake 100 is closed, and at the moment, the vehicle brake is controlled through the anti-lock brake system, so that the wheels of the vehicle are prevented from being locked and out of control, and the safety of the vehicle is improved.
In some embodiments of the invention, a vehicle comprises: a locomotive and a trailer.
For example, the vehicle is a truck. The locomotive is equipped with a brake auxiliary system 1. The trailer is connected with the head of the vehicle, the trailer and the head of the vehicle are mutually linked and braked, and the trailer is provided with a brake auxiliary system 1.
Specifically, the driver steps on the pedal 101 in the vehicle head to change the opening degree of the pedal 101, and the vehicle head and the trailer are linked to enable the trailer to change the opening degree of the pedal 101, so that the vehicle head and the trailer can provide extra braking force under the condition of brake overheating, the vehicle head and the trailer are guaranteed to be in a higher level, and the braking performance of the whole vehicle and the braking stability of the vehicle head and the trailer are improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (11)
1. A brake assist system, comprising:
a brake for braking a vehicle and having a pedal and a friction plate;
a pedal position sensor for detecting a position of the pedal;
the temperature sensor is used for detecting the temperature of the friction plate;
the controller is respectively connected with the pedal position sensor and the temperature sensor and is used for receiving a pedal position signal detected by the pedal position sensor and a friction plate temperature signal detected by the temperature sensor;
the controller receives a pedal position signal when the temperature signal of the friction plate reaches a first preset high temperature, and controls the brake to increase the braking force according to the pedal position signal.
2. The brake assist system of claim 1 wherein the brake comprises:
the composite air chamber comprises a parking air chamber and a traveling air chamber;
the travelling air storage cylinder is communicated with the travelling air chamber through a first pipeline;
the parking air cylinder is communicated with the parking air chamber through a second pipeline, and the controller controls the parking air chamber to exhaust and controls the driving air chamber to intake so as to increase the braking force of the brake.
3. The brake auxiliary system according to claim 2, wherein a parking spring is arranged in the parking air chamber, a push rod penetrating through the parking air chamber and the service air chamber is connected to the parking spring, a push rod extending away from the parking air chamber is arranged in the service air chamber, and the push rod pushes the push rod to move through the parking spring so as to increase the braking force of the brake.
4. The brake assist system according to claim 2, wherein a control valve is connected to the controller, the control valve being connected between the composite air chamber and the parking air cylinder, the control valve controlling the parking air cylinder to be turned on and off with the parking air chamber and controlling the parking air chamber to be turned on and off with the atmosphere.
5. The brake assist system according to claim 4, wherein the control valve is a two-position three-way solenoid valve having an air inlet port, an air outlet port, and an air outlet port, the air inlet port communicating with the parking cylinder, the air outlet port communicating with the parking chamber, the air outlet port communicating with the atmosphere, and the controller controlling the control valve to close the air inlet port and open the air outlet port and the air outlet port, the parking cylinder being disconnected from the parking chamber and the parking chamber communicating with the atmosphere.
6. The brake assist system of claim 1, further comprising:
the indicator light is connected with the controller, the controller controls the indicator light to flicker at a low frequency when the brake temperature signal reaches the first preset high temperature, and the controller controls the indicator light to flicker at a high frequency when the brake temperature signal reaches the second preset high temperature;
wherein the first predetermined high temperature is higher than the second predetermined high temperature.
7. The brake assist system according to claim 6, wherein the first preset high temperature is a temperature measured when a friction coefficient of the friction plate is reduced to 55% to 65%, and the second preset high temperature is a temperature measured when a friction coefficient of the friction plate is reduced to 75% to 85%.
8. The brake assist system of claim 1, wherein the controller controls the brake to increase braking force when the controller receives the pedal position signal reaching a preset limit position after receiving the friction plate temperature signal reaching the first preset high temperature.
9. A vehicle characterized by comprising a brake assist system according to any one of claims 1-9.
10. The vehicle of claim 9, further comprising:
and the anti-lock brake system is connected with the controller, and the controller closes the control of increasing the braking force of the brake when the anti-lock brake system is triggered.
11. The vehicle of claim 9, characterized by comprising:
the locomotive is provided with the brake auxiliary system;
the trailer is connected to the vehicle head, the trailer and the vehicle head are in linkage braking with each other, and the trailer is provided with the braking auxiliary system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111192221.XA CN113799759A (en) | 2021-10-13 | 2021-10-13 | Brake auxiliary system and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111192221.XA CN113799759A (en) | 2021-10-13 | 2021-10-13 | Brake auxiliary system and vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113799759A true CN113799759A (en) | 2021-12-17 |
Family
ID=78897705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202111192221.XA Pending CN113799759A (en) | 2021-10-13 | 2021-10-13 | Brake auxiliary system and vehicle with same |
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| CN116142154A (en) * | 2023-04-21 | 2023-05-23 | 南京飞恩微电子有限公司 | Hybrid brake-by-wire system |
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