CN114604222A - Loader brake fault detection and emergency brake system and control method - Google Patents
Loader brake fault detection and emergency brake system and control method Download PDFInfo
- Publication number
- CN114604222A CN114604222A CN202210330746.3A CN202210330746A CN114604222A CN 114604222 A CN114604222 A CN 114604222A CN 202210330746 A CN202210330746 A CN 202210330746A CN 114604222 A CN114604222 A CN 114604222A
- Authority
- CN
- China
- Prior art keywords
- brake
- air
- control module
- booster pump
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000012530 fluid Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- -1 gravel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a loader brake failure detection and emergency braking system and a control method. An air pressure sensor is added between an air brake valve and a booster pump, an oil pressure sensor is added between the booster pump and a brake caliper, an electromagnetic valve is added on an air inlet pipeline of a parking brake air chamber, and a control module and an alarm module are added at the same time. The functions of fault detection and emergency braking are added on the basis of the existing braking system, and the functions and the performance of the existing braking system are not influenced. Meanwhile, an automatic detection function can be provided for a loader braking system, emergency braking can be automatically carried out when the braking system breaks down, and the running safety of the loader is ensured.
Description
Technical Field
The invention relates to a loader braking fault detection and emergency braking system and a control method, and belongs to the technical field of loaders.
Background
The loader is a kind of earth and stone scraper widely used in road, railway, building, port, mine and other working conditions, and is mainly used for shoveling and loading bulk materials such as soil, gravel, lime, coal and the like, and also for light shoveling and digging operation of ore, hard soil and the like. The brake system is frequently used during the shovel operation of the loader.
At present, a loader braking system generally adopts a gas cap oil braking system, and as shown in fig. 1, the existing gas cap oil braking system is composed of an air compressor 1, an oil-water separator combination valve 2, an air storage cylinder 3, an air brake valve 4, a front axle booster pump 5, a rear axle booster pump 6, a brake caliper 7, a manual control brake valve 8, a parking brake air chamber 9 and the like. The push rod of the parking brake air chamber 9 acts on a brake caliper of the output shaft of the gearbox, the brake is carried out when the push rod is contracted, and the brake is released when the push rod is extended.
High-pressure gas generated by the air compressor 1 enters the air storage cylinder 3 after impurities are separated by the oil-water separator combination valve 2. Before the vehicle travels, the manual control valve 8 is opened, high-pressure air enters the parking brake air chamber 9, the high-pressure air pushes the piston to compress a return spring in the parking brake air chamber 9, a push rod of the parking brake air chamber 9 is pushed to extend out, and the vehicle is parked. After the vehicle is stopped, the manual brake valve 8 is closed, and the push rod of the parking brake air chamber 9 returns under the action of an internal spring, so that the vehicle is parked.
When braking is needed in the driving process, a driver steps on a pedal of the air brake valve 4, high-pressure air enters the front axle booster pump 5 and the rear axle booster pump 6 from the air storage cylinder 3, and the booster pumps enable the oil cavities to generate brake fluid with higher pressure by utilizing the area ratio of the pistons. The booster pump discharges high-pressure brake fluid and applies the high-pressure brake fluid to the brake piston of the brake caliper 7 to brake the vehicle. After the pedal of the air brake valve 4 is released, the high-pressure air in the booster pump is decompressed, and the return spring in the booster pump pushes the piston back to release the brake.
However, in the working process, if air resistance or too little brake fluid or a booster pump fails, the brake oil pressure is reduced, the brake failure occurs, and the driving safety of the loader is seriously threatened. The existing gas cap oil braking system has no corresponding fault detection and automatic emergency braking system, and once the fault occurs, emergency braking is implemented only by pulling up a hand brake by a driver. However, the brake is in an emergency when the brake fails, and accidents are easily caused if a driver does not respond timely or operates improperly.
Disclosure of Invention
The invention aims to provide a loader brake failure detection and emergency brake system and a control method. When the loader works and the brake fails due to the 'air resistance' or insufficient brake fluid or the failure of a booster pump, the loader can detect the failure and automatically provide emergency brake for the whole loader by parking brake. Meanwhile, corresponding warning measures are taken to remind a driver to stop working and stop the vehicle to check the brake system. Thereby ensuring the driving safety of the loader.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
in a first aspect, the invention provides a loader brake failure detection and emergency braking system, which is added on the basis of the existing gas cap oil braking system: the system comprises an air pressure sensor, a first oil pressure sensor, a second oil pressure sensor, an electromagnetic valve, a control module, an alarm module and corresponding pipeline circuits.
The air pressure sensor is arranged between the air outlet of the air brake valve and the air inlet of the booster pump and used for detecting the air pressure of the air outlet of the air brake valve.
The first oil pressure sensor is arranged between the front axle booster pump and the front axle brake caliper and used for detecting the brake fluid pressure output by the front axle booster pump.
The second oil pressure sensor is arranged between the rear axle booster pump and the rear axle brake caliper and used for detecting the brake fluid pressure output by the rear axle booster pump.
The pressure sensor, the first oil pressure sensor and the second oil pressure sensor are connected with the input end of the control module, and pressure signals detected by the pressure sensor, the first oil pressure sensor and the second oil pressure sensor can be transmitted to the control module.
The electromagnetic valve is installed on an air inlet pipeline of the parking brake air chamber and is connected with the manual control valve in series. The air circuit is a passage when the electromagnetic valve is electrified, and the air circuit is an open circuit when the electromagnetic valve is powered off.
The control module can control the electromagnetic valve to be powered on or powered off; the control module can control the alarm module to alarm.
The air compressor is connected with an inlet of the oil-water separator combination valve, an inlet and an outlet of the oil-water separator combination valve are connected with an air storage cylinder, the air storage cylinder is respectively connected with an air brake valve and a manual control valve, the air brake valve is respectively connected with a front axle booster pump and a rear axle booster pump, the front axle booster pump and the rear axle booster pump are respectively connected with a brake caliper, and the manual control brake valve is connected with a parking brake air chamber through an electromagnetic valve.
The invention provides a loader brake failure detection and emergency brake system control method, which comprises the following steps:
when the loader is started, the control module controls the electromagnetic valve to be electrified;
the air pressure sensor detects a pressure value P of an air outlet of the air brake valve and transmits data to the control module;
the control module judges whether the P value is larger than a preset pressure value N or not;
if P is not larger than N, judging that the driver does not operate the brake system at the moment, outputting no signal by the control module, and keeping the electromagnetic valve in the power-on state;
if P is larger than N, the driver is judged to press the air brake valve pedal at the moment, and braking is needed.
The preferable scheme is as follows: and the value of N is 0.4 Mpa.
Further scheme: when P is larger than N, the control module reads a brake hydraulic pressure value P1 discharged by a front axle booster pump measured by a first oil pressure sensor and a brake hydraulic pressure value P2 discharged by a rear axle booster pump measured by a second oil pressure sensor; the control module calculates a P1/P value and a P2/P value and judges whether the P1/P value and the P2/P value are smaller than a preset booster pump pressure ratio threshold K of the control module.
If P1/P is not less than K and P2/P is not less than K, the brake system is judged to be normal, the control module does not output signals, and the electromagnetic valve keeps the power-on state; if P1/P is smaller than K, the front axle fault is judged, the control module controls the electromagnetic valve to be powered off, the air path of the parking brake air chamber is cut off, the parking brake is started, and meanwhile the control module starts the alarm module to indicate the front axle brake fault; if P2/P is smaller than K, rear axle failure is judged, the control module controls the electromagnetic valve to be powered off, the air path of the parking brake air chamber is cut off, parking brake is started, and meanwhile the control module starts the alarm module to indicate rear axle brake failure. The technical scheme provided by the invention can obtain the following beneficial effects:
the invention adds a fault detection and emergency braking system on the basis of the existing braking system, and does not influence the function and performance of the existing braking system. The air pressure of an air inlet and the oil pressure of an oil outlet of the booster pump are detected by arranging an air pressure sensor, a first oil pressure sensor and a second oil pressure sensor, and whether a brake system has a fault is judged by comparing the ratio of the calculated oil pressure to the air pressure with a preset booster pump force ratio threshold value. When the brake system fails, the control module can automatically start the parking brake to provide emergency brake for the loader. And meanwhile, the alarm module is started to provide warning for the driver. Thereby can protect driver driving safety.
The invention has simple structure, low cost, simple control method and easy implementation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is a schematic diagram of a conventional loader gas cap oil braking system;
FIG. 2 is a schematic diagram of a loader brake failure detection and emergency braking system provided by the present invention;
FIG. 3 is a schematic diagram of a fault detection and emergency braking system provided by the present invention;
fig. 4 is a schematic flow chart of a method for detecting a loader failure and controlling an emergency braking system according to the present invention.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 2 is a schematic diagram of a loader brake failure detection and emergency braking system provided by the present invention. The following parts are added on the basis of the traditional gas cap oil braking system shown in the figure 1: the hydraulic control system comprises an air pressure sensor 11, a first hydraulic pressure sensor 12, a second hydraulic pressure sensor 13, a solenoid valve 14, a control module 15, an alarm module 16 and pipeline circuits connected among all the components.
The air pressure sensor 11 is arranged between the air outlet of the air brake valve 4 and the air inlet of the booster pump and used for detecting the pressure of the air output by the air brake valve 4.
The first oil pressure sensor 12 is installed between an oil outlet of the front axle booster pump 5 and the front axle brake caliper, and is used for detecting the pressure of brake fluid output by the front axle booster pump 5.
The second oil pressure sensor 13 is installed between the oil outlet of the rear axle booster pump 6 and the rear axle brake caliper and used for detecting the pressure of the brake fluid output by the rear axle booster pump 6.
The electromagnetic valve 14 is connected with the manual control brake valve 8 in series, and the electromagnetic valve 14 can control the air path on-off of the parking brake air chamber 9.
The air circuit is a closed circuit when the electromagnetic valve 14 is powered on, and the air circuit is an open circuit when the electromagnetic valve 14 is powered off.
As shown in fig. 3, the air pressure sensor 11, the first oil pressure sensor 12 and the second oil pressure sensor 13 are connected to an input end of a control module 15, and the solenoid valve 14 and the alarm module 16 are connected to an output end of the control module 15.
Pressure signals detected by the air pressure sensor 11, the first oil pressure sensor 12 and the second oil pressure sensor 13 can be transmitted to the control module 14.
The control module 15 may control the solenoid valve 14 to be energized or de-energized.
The control module 15 may control the alarm module 16 to output an alarm signal.
The functions of fault detection and emergency braking are added on the basis of the existing braking system, and the functions and the performance of the existing braking system are not influenced. Meanwhile, an automatic detection function can be provided for a loader braking system, emergency braking can be automatically carried out when the braking system breaks down, and the running safety of the loader is ensured.
Fig. 4 is a schematic flow chart of a method for controlling a loader fault detection and emergency braking system according to the present invention, where the method at least includes the following steps:
s101: after the vehicle is started, the control module 15 controls the solenoid valve 14 to be energized. When the vehicle is running, a driver presses the manual brake valve 8, the air path of the parking brake air chamber 9 is opened, and the parking brake is released at the moment.
S102: the air pressure sensor 11 detects the air outlet pressure P of the air brake valve 4, and the control module 15 reads the measured value P of the air pressure sensor 11.
S103: the control module 15 determines whether the air brake valve 4 outlet pressure P is greater than 0.4 MPa.
S104: if P is not greater than 0.4MPa, the driver is not considered to apply the brake, the control module 15 does not perform other calculations, and does not output a signal, and the solenoid valve remains energized.
S105: if P is greater than 0.4MPa, it is determined that the driver has applied the brake, the control module 15 reads the pressure value P1 measured by the first hydraulic sensor 12, and the control module 15 reads the pressure value P2 measured by the second hydraulic sensor 13.
S106: the control module 15 calculates P1/P and determines whether P1/P is less than a predetermined pressure ratio threshold K.
S107: the control module 15 calculates P2/P and determines whether P2/P is less than a predetermined pressure ratio threshold K.
S108: if the P1/P is not less than the preset pressure increasing ratio threshold value K and the P2/P is not less than the preset pressure increasing ratio threshold value K, the brake system is judged to be normal. The controller does not output a signal and the solenoid valve remains energized.
S109: and if the P1/P is smaller than a preset pressure increase ratio threshold value K, judging that the front axle brake has a fault. At this time, the control module 15 controls the solenoid valve 14 to be de-energized. After the electromagnetic valve 14 is powered off, the air path of the parking brake air chamber 9 is cut off, and the parking brake applies the brake to the vehicle. Meanwhile, the control module 15 controls the alarm module 16 to start an alarm function, and the alarm module 16 indicates the front axle brake failure.
S110: and if the P2/P is smaller than a preset pressure increase ratio threshold value K, judging that the rear axle brake has a fault. At this time, the control module 15 controls the solenoid valve 14 to be de-energized. After the electromagnetic valve 14 is powered off, the air path of the parking brake air chamber 9 is cut off, and the parking brake applies the brake to the vehicle. Meanwhile, the control module 15 controls the alarm module 16 to start an alarm function, and the alarm module 16 indicates the rear axle brake fault.
Therefore, the invention adds the fault detection and emergency braking system on the basis of the existing braking system, and does not influence the function and performance of the existing braking system. The air pressure of an air inlet of the booster pump and the oil pressure of an oil outlet are detected by arranging an air pressure sensor, a first oil pressure sensor and a second oil pressure sensor, and whether a brake system has a fault or not is judged by comparing the ratio of the calculated oil pressure to the air pressure with a preset booster pump force ratio threshold value. When the brake system fails, the control module can automatically start the parking brake to provide emergency brake for the loader. And meanwhile, the alarm module is started to provide warning for the driver. Thereby can protect driver driving safety. The invention has simple structure, low cost, simple control method and easy implementation.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A control method of a loader brake failure detection and emergency brake system is characterized in that:
when the loader is started, the control module controls the electromagnetic valve to be electrified;
the air pressure sensor detects a pressure value P of an air outlet of the air brake valve and transmits data to the control module;
the control module judges whether the P value is larger than a preset pressure value N or not;
if P is not larger than N, judging that the driver does not operate the brake system at the moment, outputting no signal by the control module, and keeping the electromagnetic valve in the power-on state;
if P is larger than N, the driver is judged to press the air brake valve pedal at the moment, and braking is needed.
2. The control method of a loader brake failure detection and emergency brake system according to claim 1, wherein:
and the value of N is 0.4 Mpa.
3. The control method of a loader brake failure detection and emergency brake system according to claim 1, wherein:
when P is larger than N, the control module reads a brake hydraulic pressure value P1 discharged by a front axle booster pump measured by a first oil pressure sensor and a brake hydraulic pressure value P2 discharged by a rear axle booster pump measured by a second oil pressure sensor;
the control module calculates a P1/P value and a P2/P value and judges whether the P1/P value and the P2/P value are smaller than a preset booster pump pressure ratio threshold K of the control module.
4. A control method of a loader brake failure detection and emergency brake system according to claim 3, characterized by:
if P1/P is not less than K and P2/P is not less than K, the brake system is judged to be normal, the control module does not output signals, and the electromagnetic valve keeps the power-on state;
if P1/P is smaller than K, the front axle fault is judged, the control module controls the electromagnetic valve to be powered off, the air path of the parking brake air chamber is cut off, the parking brake is started, and meanwhile the control module starts the alarm module to indicate the front axle brake fault;
if P2/P is smaller than K, rear axle failure is judged, the control module controls the electromagnetic valve to be powered off, the air path of the parking brake air chamber is cut off, parking brake is started, and meanwhile the control module starts the alarm module to indicate rear axle brake failure.
5. A loader brake failure detection and emergency braking system, comprising:
the air pressure sensor is arranged between an air outlet of the air brake valve and an air inlet of the booster pump and is used for detecting the pressure P of the air output by the air brake valve;
the first oil pressure sensor is arranged between an oil outlet of the front axle booster pump and a front axle brake caliper and is used for detecting the pressure P1 of brake fluid output by the front axle booster pump;
the second oil pressure sensor is arranged between an oil outlet of the rear axle booster pump and a rear axle brake caliper and used for detecting the pressure P2 of the brake fluid output by the rear axle booster pump;
the control module is connected with the input end of the control module and transmits the detected pressure signal to the control module;
the electromagnetic valve is arranged on the air inlet pipeline of the parking brake air chamber, is connected with the manual control valve in series, is connected with the output end of the control module and is used for controlling the on-off of the air inlet pipeline of the parking brake air chamber;
and the alarm module is connected with the output end of the control module and used for giving a fault alarm to a user.
6. The loader brake failure detection and emergency braking system of claim 5, wherein:
the gas circuit is a passage when the electromagnetic valve is electrified, and the gas circuit is an open circuit when the electromagnetic valve is powered off.
7. The loader brake failure detection and emergency braking system of claim 5, wherein:
the air compressor is connected with an inlet of the oil-water separator combination valve, an inlet and an outlet of the oil-water separator combination valve are connected with an air storage cylinder, the air storage cylinder is respectively connected with an air brake valve and a manual control valve, the air brake valve is respectively connected with a front axle booster pump and a rear axle booster pump, the front axle booster pump and the rear axle booster pump are respectively connected with a brake caliper, and the manual control brake valve is connected with a parking brake air chamber through an electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210330746.3A CN114604222A (en) | 2022-03-31 | 2022-03-31 | Loader brake fault detection and emergency brake system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210330746.3A CN114604222A (en) | 2022-03-31 | 2022-03-31 | Loader brake fault detection and emergency brake system and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114604222A true CN114604222A (en) | 2022-06-10 |
Family
ID=81867543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210330746.3A Pending CN114604222A (en) | 2022-03-31 | 2022-03-31 | Loader brake fault detection and emergency brake system and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114604222A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115716465A (en) * | 2022-11-29 | 2023-02-28 | 东风柳州汽车有限公司 | Emergency braking method, device, equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2055541A1 (en) * | 2007-11-02 | 2009-05-06 | WABCO GmbH | Driver assistance system with control of parking brake |
| CN108248588A (en) * | 2018-01-26 | 2018-07-06 | 山东临工工程机械有限公司 | Mechanical loader braking system |
| CN110843752A (en) * | 2019-11-12 | 2020-02-28 | 广西柳工机械股份有限公司 | Braking system and loader |
| CN111791854A (en) * | 2020-08-04 | 2020-10-20 | 张应彪 | Emergency braking parking system |
| CN113911094A (en) * | 2021-11-02 | 2022-01-11 | 湖南三一中型起重机械有限公司 | Fault detection method and device for brake system and working machine |
| CN215553114U (en) * | 2021-07-22 | 2022-01-18 | 洛阳广通汽车有限公司 | Emergency braking device, automobile controller and air braking automobile |
-
2022
- 2022-03-31 CN CN202210330746.3A patent/CN114604222A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2055541A1 (en) * | 2007-11-02 | 2009-05-06 | WABCO GmbH | Driver assistance system with control of parking brake |
| CN108248588A (en) * | 2018-01-26 | 2018-07-06 | 山东临工工程机械有限公司 | Mechanical loader braking system |
| CN110843752A (en) * | 2019-11-12 | 2020-02-28 | 广西柳工机械股份有限公司 | Braking system and loader |
| CN111791854A (en) * | 2020-08-04 | 2020-10-20 | 张应彪 | Emergency braking parking system |
| CN215553114U (en) * | 2021-07-22 | 2022-01-18 | 洛阳广通汽车有限公司 | Emergency braking device, automobile controller and air braking automobile |
| CN113911094A (en) * | 2021-11-02 | 2022-01-11 | 湖南三一中型起重机械有限公司 | Fault detection method and device for brake system and working machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115716465A (en) * | 2022-11-29 | 2023-02-28 | 东风柳州汽车有限公司 | Emergency braking method, device, equipment and storage medium |
| CN115716465B (en) * | 2022-11-29 | 2024-06-07 | 东风柳州汽车有限公司 | Emergency braking method, device, equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6322164B1 (en) | Braking device | |
| JP4157169B2 (en) | Method for controlling a braking device in a vehicle, method for adjusting an increase in pressure and device for controlling a braking device in a vehicle | |
| CN100462263C (en) | Vehicle brake system and vehicle control method | |
| EP0800975B1 (en) | Brake control apparatus for a vehicle | |
| US6805415B2 (en) | Brake device | |
| CN104527628B (en) | Micro-motion function and hydraulic brake control system of wheeled dozer | |
| CN103318158B (en) | Integrated electronic hydraulic brake system of automobile | |
| US20050151418A1 (en) | Electrohydraulic braking system with a pedal travel simulator consisting of a spring loaded pressure cylinder and a mechanically coupled servo piston | |
| EP0391353B1 (en) | Brake device | |
| US20120200148A1 (en) | Brake control device | |
| JPH0365301B2 (en) | ||
| JPS60222355A (en) | Hydraulic two circuit brake gear for street car | |
| GB2214253A (en) | Antilock brake system | |
| CN113548030B (en) | Hydraulic brake leakage detection method and device based on ESC | |
| US6238016B1 (en) | Device for controlling brake system of vehicle with checking of battery condition | |
| CN101489844A (en) | Motor vehicle brake system having a low pressure accumulator | |
| CN114604222A (en) | Loader brake fault detection and emergency brake system and control method | |
| KR20080054003A (en) | Hydraulic brake system and control method of it for vehicle | |
| CN101878140B (en) | Brake control system | |
| US20070278853A1 (en) | Motorcycle Brake System | |
| CN100509508C (en) | Method for prefilling a low-pressure reservoir on a motor vehicle braking system | |
| CN107472227B (en) | Brake vacuum boosting system, control method and vehicle | |
| CN116080751A (en) | Control method of hydraulic control system with energy emergency module | |
| JP3484993B2 (en) | Hydraulic brake device | |
| US20020030404A1 (en) | Hydraulic brake apparatus for a vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220610 |