CN113002313A - Automatic braking device and method for vehicle - Google Patents
Automatic braking device and method for vehicle Download PDFInfo
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- CN113002313A CN113002313A CN202110306545.5A CN202110306545A CN113002313A CN 113002313 A CN113002313 A CN 113002313A CN 202110306545 A CN202110306545 A CN 202110306545A CN 113002313 A CN113002313 A CN 113002313A
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- brake
- vehicle
- disc
- braking
- energy recovery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
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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
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/748—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on electro-magnetic brakes
Abstract
The invention relates to an automatic braking device for a vehicle, which comprises a brake disc, a brake, an auxiliary brake and a brake control system, wherein the brake disc is connected with a vehicle wheel shaft, the brake is connected with a vehicle body and covers the outer surface of the brake disc, the brake control system is embedded in a vehicle center console and is electrically connected with a running computer circuit, the brake and the auxiliary brake of the vehicle, and the auxiliary brake comprises a bearing frame, a back disc, a brake ring, an auxiliary wheel, an energy recovery motor, a brake electromagnet, a temperature sensor and a swinging mechanism. The using method comprises three steps of system assembly, automatic vehicle brake adjustment, brake force regulation and the like. On one hand, the invention can effectively meet the requirement of the matched operation of various vehicle devices; on the other hand, the braking force can be automatically adjusted according to the running state of the vehicle during running, so that the purposes of improving the braking precision and shortening the braking acting force are achieved.
Description
Technical Field
The invention relates to an automatic braking device and method for a vehicle, belonging to the technical field of automobile braking.
Background
The braking device is one of important devices in vehicle operation, plays an important role in the vehicle operation safety, the braking devices of the current vehicles in practical use are all conventional devices such as drum braking mechanisms, disc braking mechanisms and the like based on the conventional hydraulic, pneumatic or mechanical transmission mechanism drive, although the brake can meet the use requirement, in the actual braking work, the braking torque adjusting range is small, the friction loss of a brake disc and a brake pad is serious in the braking process, the kinetic energy of the vehicle can not be effectively recovered in the braking process, thereby leading to poor control precision, long braking distance, serious abrasion of braking equipment, high operation and maintenance cost of the current vehicle braking, and the brake power source is single, effective redundant backup is lacked, and the fault resistance is poor, so that great potential safety hazard and inconvenience in use are caused to the running safety of the vehicle.
Therefore, in order to solve the problem, it is urgently needed to develop a novel vehicle braking system and method to meet the actual use requirement.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an automatic vehicle braking device and an automatic vehicle braking method.
An automatic braking device for a vehicle comprises a brake disc, a brake, an auxiliary brake and a brake control system, wherein the brake disc is connected with a vehicle wheel shaft and coaxially distributed, the brake is connected with a vehicle body and covers the outer surface of the brake disc, the brake control system is embedded in a vehicle central console and is electrically connected with a running computer circuit, the brake and the auxiliary brake of the vehicle, the auxiliary brake comprises a bearing frame, a back disc, a brake ring, an auxiliary wheel, an energy recovery motor, a brake electromagnet, a temperature sensor and a swinging mechanism, wherein the bearing frame comprises a bottom plate and a support plate, the front end surface of the bottom plate is vertically connected with the support plate and forms a groove-shaped structure with an L-shaped cross section, the back disc is a closed annular disc structure coaxially distributed with the brake disc and is connected with the rear end surface of the brake disc through a connecting mechanism, and a heat dissipation cavity with the width not less than, the braking ring is a circular ring structure which is coaxially distributed with the braking disc, is positioned between the braking disc and the back disc and is respectively connected with the braking disc and the back disc, the outer diameter of the braking ring is 0-10 cm larger than the outer diameter of the braking disc, at least one energy recovery motor is connected with the support plate through a swinging mechanism, the axis of the energy recovery motor is parallel to the axis of the braking disc, the energy recovery motor is connected with the auxiliary wheel through a transmission shaft and is coaxially distributed, the distance between the auxiliary wheel and the outer side surface of the braking ring is 0-20 mm, at least one braking electromagnet is connected with the bottom plate, the axis of the braking electromagnet is vertically distributed and intersected with the rear end surface of the back disc, the outer surfaces of the braking electromagnet and the energy recovery motor are respectively provided with a temperature sensor, the temperature sensors are mutually connected in parallel, the energy recovery motor, the braking electromagnet, the temperature sensor and the swinging mechanism are electrically connected with a braking control, the braking electromagnet is electrically connected with a power supply circuit of the vehicle through a braking control system, and the energy recovery motor, the braking electromagnet and the temperature sensor are electrically connected with a running computer circuit of the vehicle through the braking control system.
Furthermore, the brake control system comprises a master control circuit based on an FPGA chip, a data bus circuit, a crystal oscillator clock circuit, an MOS drive circuit, an IGBT-based electronic switch circuit and a serial port communication circuit, wherein the master control circuit based on the FPGA chip is electrically connected with the crystal oscillator clock circuit, the MOS drive circuit, the IGBT-based electronic switch circuit and the serial port communication circuit through the data bus circuit, the MOS drive circuit is electrically connected with the IGBT-based electronic switch circuit and the serial port communication circuit, and is electrically connected with a running computer circuit, a brake and an energy recovery motor, a brake electromagnet, a temperature sensor and a swing mechanism of the auxiliary brake through the IGBT-based electronic switch circuit and the serial port communication circuit.
Furthermore, a plurality of radiating holes are uniformly distributed on the back disc and the brake ring corresponding to the radiating cavity, the aperture of each radiating hole is not more than 10 mm, and the distance between every two adjacent radiating holes is 1.1-2.5 times of the aperture of each radiating hole.
Furthermore, the connecting mechanism comprises at least three connecting bolts and a wind wheel, the connecting bolts are uniformly distributed around the axis of the brake disc, the distance between the connecting bolts and the axis of the brake disc is 50% -90% of the radius of the brake disc, the wind wheel is connected with the back disc and the brake disc and is coaxially distributed with the brake disc, and the wind wheel is positioned on the inner side of a virtual circumference formed by the connecting bolts and is connected with the connecting bolts.
Furthermore, the surface area of the corresponding side of the braking electromagnet and the back disc is 5% -15% of the area of the rear end face of the back disc, and when two or more braking electromagnets are arranged, the central angle between every two adjacent braking electromagnets is 60-180 degrees.
Further, the swing mechanism is any one of an electric swing mechanism, an electromagnetic swing mechanism, a hydraulic swing mechanism and a pneumatic swing mechanism.
A method for using an automatic braking device of a vehicle comprises the following steps:
s1, assembling the system, namely, firstly installing a brake disc and a brake at a designated position of a vehicle according to the installation requirements of a traditional vehicle brake system, then installing a brake control system in a center console of the vehicle, installing an auxiliary brake for each wheel according to the number of the wheels of the vehicle, finally electrically connecting each auxiliary brake with the brake control system and a power supply circuit system of the vehicle, and establishing data connection between the brake control system and a vehicle running computer system to finish the equipment assembly;
s2, automatically adjusting vehicle braking, wherein when a driver steps on a brake pedal during vehicle running, on one hand, a vehicle running computer circuit system drives a brake control system of the vehicle to run, and conventional braking is performed through time pressure of a brake pair and a brake disc; on the other hand, during conventional braking, the auxiliary brake firstly drives the swing mechanism to operate, the energy recovery motor and the auxiliary wheel connected with the energy recovery motor are integrally adjusted through the swing mechanism to adjust the position, the auxiliary wheel abuts against the brake ring, the power generated when the brake ring operates along with the wheels is transmitted to the auxiliary wheel, the auxiliary wheel drives the energy recovery motor to operate, and the energy recovery motor generates power by utilizing the wheel operating power to recover energy and simultaneously achieves the purposes of consuming the wheel operating kinetic energy and reducing the speed; then the brake electromagnet is driven to run, and a magnetic field generated when the brake electromagnet runs generates a brake torque to the back disc to assist in braking operation of the vehicle;
s3, brake force regulation, wherein in the operation brake operation of the step S2, firstly, a driving computer circuit detects the acting force of a driver on a brake pedal to obtain a brake force regulation reference parameter, then the generated energy of an energy recovery motor is detected to monitor the rotating speed of a wheel, then the brake force regulation reference parameter is compared with the actual rotating speed of the wheel for operation, and the brake acting force of a brake on a brake disc is regulated through a vehicle brake system according to the calculation result; on the other hand, the magnetic field intensity of the brake electromagnet is adjusted, and the brake torque generated by the brake electromagnet to the back disc is adjusted through the magnetic field intensity, so that the purposes of accurately braking according to the running state of the vehicle, improving the braking efficiency and shortening the braking distance are achieved.
On one hand, the brake system has simple system structure and good universality, can effectively reduce the friction loss between the brake disc and the brake pad in the braking process, reduces the operation and maintenance cost of the brake system, and can realize the recovery of the kinetic energy of the vehicle in the braking process, thereby improving the comprehensive utilization rate of the energy of the vehicle; on the other hand can be according to vehicle running state automatic adjustment brake force in service to reach the purpose that improves the braking precision, shortens braking effort, this is novel in addition, has realized multisource brake force output, thereby the effectual potential safety hazard of vehicle braking inefficacy when having stopped traditional vehicle braking system trouble, very big improvement the security and the reliability of vehicle operation.
Drawings
The invention is described in detail below with reference to the drawings and the detailed description;
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic diagram of a circuit configuration of a brake control system;
FIG. 3 is a schematic view of a brake disc, a brake and an auxiliary brake;
FIG. 4 is a side view of a brake disk, a brake and an auxiliary brake;
FIG. 5 is a schematic flow chart of the method of the present invention.
Detailed Description
In order to facilitate the implementation of the technical means, creation features, achievement of the purpose and the efficacy of the invention, the invention is further described below with reference to specific embodiments.
As shown in fig. 1-4, an automatic braking device for a vehicle comprises a brake disc 1, a brake 2, an auxiliary brake and a brake control system 3, wherein the brake disc 1 is connected with a vehicle wheel shaft and coaxially distributed, the brake 2 is connected with a vehicle body and covers the outer surface of the brake disc 1, and the brake control system 3 is embedded in a vehicle center console and is electrically connected with a running computer circuit, the brake 2 and the auxiliary brake of the vehicle.
In this embodiment, the auxiliary brake includes a bearing frame 11, a back disc 12, a braking ring 13, an auxiliary wheel 14, an energy recovery motor 15, a braking electromagnet 16, a temperature sensor 17 and a swing mechanism 18, wherein the bearing frame 11 includes a bottom plate 101 and a support plate 102, the front end surface of the bottom plate 101 is perpendicularly connected with the support plate 102 and forms a groove-shaped structure with an L-shaped cross section, the back disc 12 is a closed ring-shaped disc structure coaxially distributed with the brake disc 1 and is connected with the rear end surface of the brake disc 1 through a connecting mechanism 19, a heat dissipation cavity 10 with a width not less than 3 mm is arranged between the back disc 12 and the rear end surface of the brake disc 1, the braking ring 13 is a ring structure coaxially distributed with the brake disc 1 and is located between the brake disc 1 and the back disc 12 and is respectively connected with the brake disc 1 and the back disc 12, and the braking ring 13 is 0-10 cm larger than the outer diameter of the brake, the energy recovery motor 15 is connected with the support plate 102 through the swing mechanism 18, the axis of the energy recovery motor 15 is parallel to the axis of the brake disc 1, the energy recovery motor 15 is connected with the auxiliary wheel 14 through a transmission shaft and is coaxially distributed, the distance between the auxiliary wheel 14 and the outer side surface of the brake ring 13 is 0-20 mm, at least one brake electromagnet 16 is connected with the bottom plate 101, the axis of the brake electromagnet is vertically distributed and intersected with the rear end surface of the back disc 12, the outer surfaces of the brake electromagnet 16 and the energy recovery motor 15 are respectively provided with a temperature sensor 17, the temperature sensors 17 are mutually connected in parallel, the energy recovery motor 15, the brake electromagnet 16, the temperature sensor 17 and the swing mechanism 18 are electrically connected with the brake control system 3, the energy recovery motor 15 is electrically connected with a vehicle storage battery and a power supply circuit through the brake control system 3, the brake electromagnet 16 is electrically connected, the energy recovery motor 15, the brake electromagnet 16 and the temperature sensor 17 are electrically connected with a running computer circuit of the vehicle through the brake control system 3.
In this embodiment, the brake control system 3 includes a master control circuit based on an FPGA chip, a data bus circuit, a crystal oscillator clock circuit, an MOS drive circuit, an IGBT-based electronic switch circuit, and a serial communication circuit, where the FPGA chip based master control circuit is electrically connected to the crystal oscillator clock circuit, the MOS drive circuit, the IGBT-based electronic switch circuit, and the serial communication circuit through the data bus circuit, and the MOS drive circuit is electrically connected to the IGBT-based electronic switch circuit and the serial communication circuit, and is electrically connected to the traveling crane computer circuit, the brake 2, the energy recovery motor 15 of the auxiliary brake, the brake electromagnet 16, the temperature sensor 17, and the swing mechanism 18 through the IGBT-based electronic switch circuit and the serial communication circuit.
Meanwhile, a plurality of heat dissipation ports 110 are uniformly distributed on the back disc 12 and the brake ring 13 corresponding to the heat dissipation cavity 10, the aperture of each heat dissipation port 110 is not larger than 10 millimeters, and the distance between every two adjacent heat dissipation ports 110 is 1.1-2.5 times of the aperture of each heat dissipation port.
It should be noted that the connecting mechanism 19 includes at least three connecting bolts 191 and a wind wheel 192, the connecting bolts 191 are uniformly distributed around the axis of the brake disc 1, the distance between the connecting bolts 191 and the axis of the brake disc 1 is 50% -90% of the radius of the brake disc 1, the wind wheel 192 is connected with the back disc 12 and the brake disc 1 and is coaxially distributed with the brake disc 1, and the wind wheel 192 is located inside a virtual circumference formed by the connecting bolts 191 and is connected with the connecting bolts 191.
The surface area of the side of the brake electromagnet 16 corresponding to the back disc 12 is 5% to 15% of the area of the rear end face of the back disc 12, and when two or more brake electromagnets 16 are provided, the central angle between two adjacent brake electromagnets 16 is 60 ° to 180 °, and the swing mechanism 18 is any one of an electric swing mechanism, an electromagnetic swing mechanism, a hydraulic swing mechanism, and an air pressure swing mechanism.
As shown in fig. 5, a method for using an automatic brake device for a vehicle includes the steps of:
s1, assembling the system, namely, firstly installing a brake disc and a brake at a designated position of a vehicle according to the installation requirements of a traditional vehicle brake system, then installing a brake control system in a center console of the vehicle, installing an auxiliary brake for each wheel according to the number of the wheels of the vehicle, finally electrically connecting each auxiliary brake with the brake control system and a power supply circuit system of the vehicle, and establishing data connection between the brake control system and a vehicle running computer system to finish the equipment assembly;
s2, automatically adjusting vehicle braking, wherein when a driver steps on a brake pedal during vehicle running, on one hand, a vehicle running computer circuit system drives a brake control system of the vehicle to run, and conventional braking is performed through time pressure of a brake pair and a brake disc; on the other hand, during conventional braking, the auxiliary brake firstly drives the swing mechanism to operate, the energy recovery motor and the auxiliary wheel connected with the energy recovery motor are integrally adjusted through the swing mechanism to adjust the position, the auxiliary wheel abuts against the brake ring, the power generated when the brake ring operates along with the wheels is transmitted to the auxiliary wheel, the auxiliary wheel drives the energy recovery motor to operate, and the energy recovery motor generates power by utilizing the wheel operating power to recover energy and simultaneously achieves the purposes of consuming the wheel operating kinetic energy and reducing the speed; then the brake electromagnet is driven to run, and a magnetic field generated when the brake electromagnet runs generates a brake torque to the back disc to assist in braking operation of the vehicle;
s3, brake force regulation, wherein in the operation brake operation of the step S2, firstly, a driving computer circuit detects the acting force of a driver on a brake pedal to obtain a brake force regulation reference parameter, then the generated energy of an energy recovery motor is detected to monitor the rotating speed of a wheel, then the brake force regulation reference parameter is compared with the actual rotating speed of the wheel for operation, and the brake acting force of a brake on a brake disc is regulated through a vehicle brake system according to the calculation result; on the other hand, the magnetic field intensity of the brake electromagnet is adjusted, and the brake torque generated by the brake electromagnet to the back disc is adjusted through the magnetic field intensity, so that the purposes of accurately braking according to the running state of the vehicle, improving the braking efficiency and shortening the braking distance are achieved.
Meanwhile, in the process of running and braking, the system temperature in the braking process can be detected through the temperature sensor, and the brake disc is prevented from failing due to overhigh temperature.
On one hand, the brake control system is connected with a vehicle wheel shaft through a brake disc and is coaxially distributed, the brake is connected with a vehicle body and covers the outer surface of the brake disc, the brake control system is embedded in a vehicle central console and is electrically connected with a running computer circuit, a brake and an auxiliary brake of a vehicle, and the auxiliary brake comprises a bearing frame, a back disc, a brake ring, an auxiliary wheel, an energy recovery motor, a brake electromagnet, a temperature sensor and a swing mechanism, so that the system is simple in structure and good in universality, the friction loss between the brake disc and a brake pad can be effectively reduced in the braking process, and the operation and maintenance cost of the brake system is reduced.
At the same time, the distance between the auxiliary wheel and the outer side surface of the brake ring is 0-20 mm, at least one brake electromagnet is arranged, the axis of the brake electromagnet and the energy recovery motor is connected with the bottom plate and is vertically distributed and intersected with the rear end surface of the back plate, the outer surfaces of the brake electromagnet and the energy recovery motor are respectively provided with a temperature sensor, the temperature sensors are mutually connected in parallel, the energy recovery motor, the brake electromagnet, the temperature sensor and the swinging mechanism are all electrically connected with the brake control system, the energy recovery motor is electrically connected with a vehicle storage battery and a power supply circuit through the brake control system, the brake electromagnet is electrically connected with the power supply circuit of the vehicle through the brake control system, the energy recovery motor, the brake electromagnet and the temperature sensor are electrically connected with a running computer circuit of the vehicle through the brake control system, the kinetic energy of the vehicle can be recovered in the braking process, and the comprehensive utilization rate of the vehicle energy is improved; on the other hand, when a driver steps on a brake pedal during the running of the vehicle, on one hand, a vehicle running computer circuit system drives a brake control system of the vehicle to run, and the time pressure between the brake pair and a brake disc is used for performing conventional braking; on the other hand, during conventional braking, the auxiliary brake firstly drives the swing mechanism to operate, the energy recovery motor and the auxiliary wheel connected with the energy recovery motor are integrally adjusted through the swing mechanism to adjust the position, the auxiliary wheel is abutted against the brake ring, the power generated when the brake ring operates along with the wheel is transmitted to the auxiliary wheel, the energy recovery motor is driven by the auxiliary wheel to operate, the braking force can be automatically adjusted according to the operating state of the vehicle during operation, the purposes of improving the braking precision and shortening the braking acting force are achieved, in addition, the multi-source braking force output is realized, the potential safety hazard that the vehicle is braked to lose efficacy when the traditional vehicle braking system fails is effectively avoided, and the safety and the reliability of vehicle operation are greatly improved.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a vehicle automatic braking device, includes brake disc, stopper, auxiliary brake and braking control system, the brake disc be connected and coaxial distribution with vehicle wheel axle, the stopper is connected and the cladding is in the brake disc surface with the automobile body, its characterized in that: the brake control system is embedded in a vehicle central console and is electrically connected with a running computer circuit, a brake and an auxiliary brake of a vehicle, the auxiliary brake comprises a bearing frame, a back disc, a brake ring, an auxiliary wheel, an energy recovery motor, a brake electromagnet, a temperature sensor and a swing mechanism, wherein the bearing frame comprises a bottom plate and a support plate, the front end surface of the bottom plate is vertically connected with the support plate to form a groove-shaped structure with an L-shaped cross section, the back disc is a closed annular disc structure coaxially distributed with the brake disc and is connected with the rear end surface of the brake disc through a connecting mechanism, a heat dissipation cavity with the width not less than 3 mm is arranged between the back disc and the rear end surface of the brake disc, the brake ring is a circular ring structure coaxially distributed with the brake disc, is positioned between the brake disc and the back disc and is respectively connected with the brake disc and the back disc, and is 0-10 cm larger than the outer diameter, at least one energy recovery motor is connected with the support plate through a swing mechanism, the axis of the energy recovery motor is parallel to the axis of the brake disc, the energy recovery motor is connected with the auxiliary wheel through a transmission shaft and is coaxially distributed, the interval between the auxiliary wheel and the outer side surface of the brake ring is 0-20 mm, at least one brake electromagnet is connected with the bottom plate, the axis of the brake electromagnet is vertically distributed and intersected with the rear end surface of the back disc, the outer surfaces of the brake electromagnet and the energy recovery motor are respectively provided with a temperature sensor, the temperature sensors are mutually connected in parallel, the energy recovery motor, the brake electromagnet, the temperature sensor and the swing mechanism are electrically connected with a brake control system, the energy recovery motor is electrically connected with a vehicle storage battery and a power supply circuit through the brake control system, and the brake electromagnet is electrically connected with the power supply circuit of a vehicle through, the energy recovery motor, the brake electromagnet and the temperature sensor are electrically connected with a running computer circuit of the vehicle through a brake control system.
2. An automatic brake device for vehicle according to claim 1, characterized in that: the brake control system comprises a master control circuit based on an FPGA chip, a data bus circuit, a crystal oscillator clock circuit, an MOS (metal oxide semiconductor) drive circuit, an electronic switch circuit based on an IGBT (insulated gate bipolar transistor), and a serial communication circuit, wherein the master control circuit based on the FPGA chip is electrically connected with the crystal oscillator clock circuit, the MOS drive circuit, the electronic switch circuit based on the IGBT and the serial communication circuit through the data bus circuit, the MOS drive circuit is electrically connected with the electronic switch circuit based on the IGBT and the serial communication circuit, and is electrically connected with an energy recovery motor, a brake electromagnet, a temperature sensor and a swing mechanism of a traveling crane computer circuit, a brake and an auxiliary brake through the electronic switch circuit based on the IGBT and the serial communication circuit.
3. An automatic brake device for vehicle according to claim 1, characterized in that: a plurality of radiating holes are uniformly distributed on the back disc and the brake ring corresponding to the radiating cavity, the aperture of each radiating hole is not more than 10 millimeters, and the distance between every two adjacent radiating holes is 1.1-2.5 times of the aperture of each radiating hole.
4. An automatic brake device for vehicle according to claim 1, characterized in that: the connecting mechanism comprises at least three connecting bolts and a wind wheel, the connecting bolts are uniformly distributed around the axis of the brake disc, the distance between the connecting bolts and the axis of the brake disc is 50% -90% of the radius of the brake disc, the wind wheel is connected with the back disc and the brake disc and is coaxially distributed with the brake disc, and the wind wheel is positioned on the inner side of a virtual circumference formed by the connecting bolts and is connected with the connecting bolts.
5. An automatic brake device for vehicle according to claim 1, characterized in that: the surface area of the corresponding side of the braking electromagnet and the back disc is 5-15% of the area of the back end face of the back disc, and when two or more braking electromagnets are arranged, the central angle between every two adjacent braking electromagnets is 60-180 degrees.
6. An automatic brake device for vehicle according to claim 1, characterized in that: the swing mechanism is any one of an electric swing mechanism, an electromagnetic swing mechanism, a hydraulic swing mechanism and an air pressure swing mechanism.
7. The use method of the automatic vehicle brake device is characterized by comprising the following steps:
s1, assembling the system, namely, firstly installing a brake disc and a brake at a designated position of a vehicle according to the installation requirements of a traditional vehicle brake system, then installing a brake control system in a center console of the vehicle, installing an auxiliary brake for each wheel according to the number of the wheels of the vehicle, finally electrically connecting each auxiliary brake with the brake control system and a power supply circuit system of the vehicle, and establishing data connection between the brake control system and a vehicle running computer system to finish the equipment assembly;
s2, automatically adjusting vehicle braking, wherein when a driver steps on a brake pedal during vehicle running, on one hand, a vehicle running computer circuit system drives a brake control system of the vehicle to run, and conventional braking is performed through time pressure of a brake pair and a brake disc; on the other hand, during conventional braking, the auxiliary brake firstly drives the swing mechanism to operate, the energy recovery motor and the auxiliary wheel connected with the energy recovery motor are integrally adjusted through the swing mechanism to adjust the position, the auxiliary wheel abuts against the brake ring, the power generated when the brake ring operates along with the wheels is transmitted to the auxiliary wheel, the auxiliary wheel drives the energy recovery motor to operate, and the energy recovery motor generates power by utilizing the wheel operating power to recover energy and simultaneously achieves the purposes of consuming the wheel operating kinetic energy and reducing the speed; then the brake electromagnet is driven to run, and a magnetic field generated when the brake electromagnet runs generates a brake torque to the back disc to assist in braking operation of the vehicle;
s3, brake force regulation, wherein in the operation brake operation of the step S2, firstly, a driving computer circuit detects the acting force of a driver on a brake pedal to obtain a brake force regulation reference parameter, then the generated energy of an energy recovery motor is detected to monitor the rotating speed of a wheel, then the brake force regulation reference parameter is compared with the actual rotating speed of the wheel for operation, and the brake acting force of a brake on a brake disc is regulated through a vehicle brake system according to the calculation result; on the other hand, the magnetic field intensity of the brake electromagnet is adjusted, and the brake torque generated by the brake electromagnet to the back disc is adjusted through the magnetic field intensity, so that the purposes of accurately braking according to the running state of the vehicle, improving the braking efficiency and shortening the braking distance are achieved.
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| CN202110306545.5A CN113002313A (en) | 2021-03-23 | 2021-03-23 | Automatic braking device and method for vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110306545.5A CN113002313A (en) | 2021-03-23 | 2021-03-23 | Automatic braking device and method for vehicle |
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| CN113002313A true CN113002313A (en) | 2021-06-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114683863A (en) * | 2022-04-29 | 2022-07-01 | 无锡公爵动力系统有限公司 | Energy-saving power generation direct-drive electric vehicle |
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Application publication date: 20210622 |