TWI788865B - Anti-lock braking control system for a vehicle and a method of implementing the system - Google Patents

Abstract

The present invention relates to an anti-lock braking control system for a vehicle and a method of implementing the system, in which at least one brake caliper is provided, and the brake caliper is assembled on the frame of a vehicle, the brake caliper is equipped with two lining discs, and between the two lining discs there is a brake disc, and the brake disc is assembled on the wheels of the vehicle. In addition, the brake caliper is connected to a hydraulic valve by an oil supply line, and the hydraulic valve is connected to a controller. Accordingly, by controlling the hydraulic pressure distribution of the hydraulic valve, the brake caliper can change the contact position of the lining discs and the brake disc, and the point of action of the brake disc is gradually shifted from a larger radius position to a smaller radius position, and then the brake torque is gradually reduced from large to small, so that the brake torque is shifted to achieve the effect that the brake does not lock up and no vibration is generated when braking.

Description

Vehicle anti-lock braking control system and its implementation method

The present invention relates to a vehicle anti-lock brake control system and its implementation method, in particular to a brake control system and its implementation method which can effectively prevent the vehicle from locking when braking and avoid vibration during braking.

By the way, vehicles are an indispensable means of transportation in modern people's lives. As the number of vehicles on the road increases, traffic accidents also increase. How to reduce traffic accidents is a necessary consideration in the process of developing vehicles.

Most existing vehicles are equipped with anti-lock braking system (Anti-lock Braking System, ABS). If the wheels continue to roll, the ABS will remain stationary and stay on alert. When it is judged that the wheels are locked, the ABS system will use the oil pressure pump to quickly reduce the oil pressure in the brake oil pipe and quickly restore the oil pressure to To the original extent, this kind of point-release braking action, which is like quickly and repeatedly stepping on the brakes, can allow the vehicle to generate the necessary braking torque, and can keep the wheels rotating continuously without being locked due to the brakes, so that the vehicle can still maintain steering controllability. Reduce the effect of traffic accidents; The point-release braking action system with ABS will produce frequent vibrations. Although this is a normal phenomenon of the ABS system, the vibrations produced will have a negative impact on the image and radar of light and small vehicles or electric vehicles.

The reason is that, in view of the fact that the existing ABS and other vehicle anti-lock braking systems still have the above-mentioned deficiencies in use, with the help of many years of manufacturing and design experience and knowledge in related fields, and through many ingenuity, the inventor has developed this invention.

The present invention relates to a vehicle anti-lock braking control system and its implementation method. Its main purpose is to provide a braking control system and its implementation that can effectively prevent the vehicle from locking up and avoid vibration during braking. method.

In order to achieve the above-mentioned implementation purpose, the inventor of the present invention has developed a vehicle anti-lock braking control system as follows in one embodiment, which includes: a brake caliper, so that the brake caliper is assembled on the body of a vehicle, and the brake caliper The caliper is provided with two opposite caliper bodies, and a braking zone is formed between the two caliper bodies, and a first piston and a second piston are respectively assembled on the adjacent sides of the two caliper bodies and the braking zone, and the The brake caliper is provided with a first oil passage and a second oil passage, and the two ends of the first oil passage are respectively connected with the first pistons provided at the two caliper bodies, and the two ends of the second oil passage are respectively connected to each other. It is connected with the second piston set at the two caliper bodies, and two opposite locking pieces are set in the braking zone, and the two locking pieces are respectively connected with the first piston and the second locking piece at the two caliper bodies. The pistons are connected together; a brake disc is such that the brake disc is set on one of the wheels of the vehicle and is located between the two pads of the brake caliper, and the first piston passes through the pad and the The position where the brake disc is in indirect contact is defined as the first position, and the position where the second piston passes through the pad and the brake disc is in indirect contact is defined as the second position, and the center of the brake disc is to the first position. the radius of a location is greater than the radius from the center of the brake rotor to the second location; A hydraulic valve, the hydraulic valve group is arranged on the body of the vehicle, such that the hydraulic valve is connected to one end of a first oil delivery pipe and a second oil delivery pipe, and the other ends of the first oil delivery pipe and the second oil delivery pipe are respectively connected to The first oil circuit and the second oil circuit of the brake caliper are connected; a controller is installed on the body of the vehicle, and the controller is connected with the hydraulic valve signal.

The implementation method of the vehicle anti-lock braking control system according to one embodiment of the above, the implementation steps include: A. The first stage of braking: when the brake is applied, the controller will send a control signal to the hydraulic valve , the hydraulic valve will send hydraulic oil to the first oil passage of the brake caliper through the first oil delivery pipe, so as to push the first piston of the two caliper bodies of the brake caliper toward the brake disc, so that the two The first pistons are respectively connected to press the disc against the first position of the brake disc, and the first stage of braking action is generated at the larger radius of the brake disc; B. The second stage of braking: then the The controller will control the hydraulic valve to gradually reduce the hydraulic pressure delivered by the first oil delivery pipe to the first oil passage, so that the first piston will gradually retract toward the opposite direction of the brake disc, and the second oil delivery pipe will send the hydraulic pressure to the first oil passage. The hydraulic pressure of the second oil circuit is gradually increased, and the second piston of the two caliper bodies of the brake caliper is pushed toward the brake disc, so that the two second pistons are respectively connected with each other to press the disc against the brake on the disc, so that the pressure position of the two pads on the brake disc is moved from a position with a larger radius to a position with a smaller radius of the brake disc, so as to produce a second stage of braking on the brake disc action.

The implementation method of the vehicle anti-lock braking control system according to one embodiment of the above, wherein, the controller is connected with an accelerometer signal, and before the first stage braking step is implemented, the vehicle acceleration and deceleration comparison is first carried out The step is to measure the current deceleration of the vehicle and the deceleration at the previous moment by the accelerometer connected to the controller while the vehicle is running, and then the controller will decelerate the deceleration The current deceleration of the vehicle measured by the gauge is compared with the previous deceleration for reference, so that the deceleration is at an acceptable maximum.

In addition, the present inventor is researching the vehicle anti-lock braking control system of the second embodiment as follows, which includes: two brake calipers, which include a first brake calipers and a second brake calipers, so that the first brake calipers and the second brake calipers The second brake caliper is set on the body of a vehicle, the first brake caliper and the second brake caliper are respectively provided with two opposite caliper bodies, and are arranged between the two caliper bodies of the first brake caliper and the second brake caliper A braking zone is formed respectively, and a piston is respectively set on the side of the first brake caliper and the second brake caliper adjacent to the two caliper bodies and the braking zone, and a piston is respectively set in the first brake caliper and the second brake caliper. oil circuit, and connect the two ends of the oil circuit of the first brake caliper and the second brake caliper to the pistons of the two caliper bodies respectively, and set There are two opposite pads, and the two pads of the first brake caliper and the second brake caliper are respectively connected to the pistons assembled with the two caliper bodies; a brake disc is configured so that the brake disc assembly On one of the wheels of the vehicle, between the two pads of the first brake caliper and the second brake caliper, and the position where the pads of the first brake caliper are in contact with the brake disc is defined as the second In addition, the position where the second brake caliper makes contact with the brake disc is defined as the second position, and the radius from the center of the brake disc to the first position is greater than the radius from the center of the brake disc to the brake disc. The radius of the second position; two hydraulic valves, including a first hydraulic valve and a second hydraulic valve, so that the first hydraulic valve and the second hydraulic valve group are arranged on the body of the vehicle, and the second hydraulic valve The first hydraulic valve and the second hydraulic valve are respectively connected to one end of an oil delivery pipe, and the other ends of the oil delivery pipes of the first hydraulic valve and the second hydraulic valve are respectively connected to the oil passages in the first brake caliper and the second brake caliper; A controller is installed on the body of the vehicle, and the controller is respectively connected to the first hydraulic valve and the second hydraulic valve for signals.

The implementation method of the vehicle anti-lock braking control system of the second embodiment as described above, the implementation steps include: A. The first stage braking: when the brake is applied, the controller will send a control signal to the first stage A hydraulic valve, so that the first hydraulic valve sends hydraulic oil to the oil circuit of the first brake caliper through its oil delivery pipe, so that the piston of the first brake caliper is pushed and connected to press the pad against the brake disc The first position of the disc, and the first stage of braking action is generated at the larger radius of the brake disc; B. The second stage of braking: then the controller will control the first hydraulic valve and its oil delivery pipe to send to the first The hydraulic pressure of the oil circuit of the brake caliper is gradually reduced, so that the blade of the first brake caliper is gradually retracted toward the opposite direction of the brake disc, and the oil delivery pipe of the second hydraulic valve is sent to the oil of the second brake caliper The hydraulic pressure of the road gradually increases, so that the piston of the second brake caliper is pushed and connected so that the plate is pressed against the second position of the brake disc, so that the pressing position of the brake disc is changed from a place with a larger radius Move to the smaller radius position of the brake disc to produce the second stage of braking action on the brake disc.

According to the implementation method of the vehicle anti-lock braking control system in the second embodiment as mentioned above, the controller is connected with an accelerometer signal, and before the first-stage braking step is implemented, the acceleration and deceleration comparison of the vehicle is carried out first. The step is to measure the current deceleration of the vehicle and the deceleration of the previous moment by the accelerometer connected to the controller during the running of the vehicle, and then measure the current deceleration of the vehicle by the accelerometer measured by the controller. The deceleration rate is compared with the deceleration rate at the previous moment, so that the deceleration rate is at an acceptable maximum value.

In addition, the present inventor has researched and developed the vehicle anti-lock braking control system of the following three embodiments, which include: Two brake calipers, including a first brake caliper and a second brake caliper, so that the first brake caliper and the second brake caliper are assembled on the body of a vehicle, the first brake caliper and the second brake caliper Each is equipped with two opposite caliper bodies, and a braking zone is formed between the two caliper bodies of the first brake caliper and the second brake caliper, and a braking zone is formed between the two caliper bodies of the first brake caliper and the second brake caliper. A piston is provided in each group on the adjacent side of the section, and an oil circuit is respectively provided in the first brake caliper and the second brake caliper, and the two ends of the oil circuit of the first brake caliper and the second brake caliper are connected with the two caliper respectively. The pistons of the body assembly are connected, and in addition, there are two opposite pads in the braking zone of the first brake caliper and the second brake caliper, so that the two brake pads of the first brake caliper and the second brake caliper Each piece is connected with the piston of the two caliper bodies; the two brake discs include a first brake disc and a second brake disc, so that the first brake disc and the second brake disc are assembled on one of the wheels of the vehicle, with the first brake disc and the second brake disc located between the two pads of the first brake caliper and the second brake caliper respectively, and the first brake disc The radius is greater than the radius of the second brake disc, and the position where the first brake caliper makes contact with the first brake disc is defined as the first position, and the second brake caliper and the second brake caliper make the contact between the pad and the first brake disc. The contact position of the second brake disc is defined as the second position, and the radius from the center of the first brake disc to the first position is greater than the radius from the center of the second brake disc to the second position; two hydraulic valves , including a first hydraulic valve and a second hydraulic valve, so that the first hydraulic valve and the second hydraulic valve group are arranged on the body of the vehicle, and the first hydraulic valve and the second hydraulic valve are respectively One end of an oil delivery pipe is connected, and the other ends of the oil delivery pipes of the first hydraulic valve and the second hydraulic valve are respectively connected with the oil passages in the first brake caliper and the second brake caliper; a controller, which makes the controller set It is installed on the body of the vehicle, and the controller is respectively connected with the signals of the first hydraulic valve and the second hydraulic valve.

The implementation method of the vehicle anti-lock braking control system of the third embodiment described above, the implementation steps include: A. The first stage of braking: when the brake is applied, the controller will send a control signal to the first stage A hydraulic valve, so that the first hydraulic valve sends hydraulic oil to the oil circuit of the first brake caliper through its oil delivery pipe, so that the piston of the first brake caliper is pushed and connected to press the plate against the first brake caliper. The first position of the brake disc, and the first stage of the braking action is generated at the first position of the first brake disc with a larger radius; B. The second stage of braking: then the controller will control the first The hydraulic pressure delivered by the oil pipe of the hydraulic valve to the oil circuit of the first brake caliper is gradually reduced, so that the pads of the first brake caliper are gradually retracted toward the opposite direction of the first brake disc, and the second hydraulic valve The hydraulic pressure delivered by the oil delivery pipe to the oil circuit of the second brake caliper is gradually increased, so that the piston of the second brake caliper is pushed and connected so that the plate is pressed against the second position of the second brake disc, and by the The first position of the first brake disc with a larger radius is moved to the second position of the second brake disc with a smaller radius to generate a second stage of braking action.

The implementation method of the vehicle anti-lock braking control system according to the third embodiment mentioned above, wherein, the controller is connected with an accelerometer signal, and before the first stage braking step is implemented, the vehicle acceleration and deceleration comparison is performed first. The step is to measure the current deceleration of the vehicle and the deceleration of the previous moment by the accelerometer connected to the controller during the running of the vehicle, and then measure the current deceleration of the vehicle by the accelerometer measured by the controller. The deceleration rate is compared with the deceleration rate at the previous moment, so that the deceleration rate is at an acceptable maximum value.

According to the vehicle anti-lock braking control system according to the first to third embodiments, the controller is connected with an accelerometer signal.

Accordingly, the vehicle anti-lock braking control system and its implementation method of the present invention can change the contact position of the brake calipers and the brake disc by controlling the oil pressure distribution of the hydraulic valve, so as to control the pressure of the brake disc. The point of action is gradually moved from a position with a larger radius to a position with a smaller radius, so that the braking torque gradually decreases from a large one. Through the transfer of the braking torque, the brakes are not locked and vibrations are not generated during braking.

1: brake calipers

11: Pliers

12: Braking interval

13: First Piston

14:Second Piston

15: The first oil circuit

16: The second oil circuit

17: come to make film

2: Brake disc

21: First position

22:Second position

3: Hydraulic valve

31: The first oil pipeline

32: The second oil pipeline

4: Controller

41: Acceleration Gauge

5: Brake calipers

51: The first brake caliper

511: to order film

52:Second brake caliper

521: To order film

6: Brake disc

61: First position

62:Second position

7: Hydraulic valve

71: The first hydraulic valve

711: oil pipeline

72: Second hydraulic valve

721: oil pipeline

8: Brake disc

81: The first brake disc

811: first position

82:Second brake disc

821: second position

Figure 1: Schematic diagram of the system structure of one embodiment of the present invention

The second figure: the flow chart of the present invention

The third figure: one of the experimental curves of the present invention

Figure 4: the second experimental curve of the present invention

Figure 5: Schematic diagram of the system structure of the second embodiment of the present invention

Figure 6: Schematic diagram of the system structure of the third embodiment of the present invention

Attachment 1: "A New Approach of Antiskid Braking System (ABS) via Disk Pad Position Control (PPC) Method" paper

In order to make the technical means of the present invention and the effects it can achieve more completely and clearly disclosed, the detailed description is as follows, please refer to the disclosed drawings and figure numbers: first, please refer to the first figure As shown, the anti-lock braking control system for vehicles according to one embodiment of the present invention includes: a brake caliper (1), so that the brake caliper (1) is assembled on the body of a vehicle, and the brake caliper (1) It is equipped with two relative pliers (11), and a braking section (12) is formed between the two pliers (11), and the two pliers (11) are adjacent to the braking section (12) A first piston (13) and a second piston (14) are respectively set on one side, and a first oil passage (15) and a second oil passage (16) are provided in the brake caliper (1), and the The first Two ends of an oil circuit (15) are connected with the first piston (13) of the two caliper bodies (11) respectively, and the two ends of the second oil circuit (16) are respectively connected with the first piston (13) of the two caliper bodies (11). The two pistons (14) are linked together, and two relative locking pieces (17) are arranged in the braking section (12), and the two locking pieces (17) are respectively assembled with the two caliper bodies (11). The first piston (13) and the second piston (14) are connected; a brake disc (2), so that the brake disc (2) is set on a wheel of the vehicle, and is located at the brake caliper ( 1) The first position (21) is defined as the position where the first piston (13) is in indirect contact with the brake disc (2) through the two pads (17) In addition, the position where the second piston (14) passes through the pad (17) and the brake disc (2) is in indirect contact is defined as the second position (22), and the center of the brake disc (2) is to The radius of the first position (21) is larger than the radius from the center of the brake disc (2) to the second position (22); a hydraulic valve (3) is configured so that the hydraulic valve (3) is arranged on the vehicle On the car body, the hydraulic valve (3) is a hydraulic servo valve, so that the hydraulic valve (3) is connected to one end of a first oil delivery pipe (31) and a second oil delivery pipe (32), and the first oil delivery pipe ( 31) and the other end of the second oil delivery pipe (32) are respectively connected with the first oil circuit (15) and the second oil circuit (16) of the brake caliper (1); a controller (4) is to make the controller (4) Set up on the body of the vehicle, and connect an accelerometer (41) to the controller (4) with a wired or wireless signal, and make the controller (4) and the hydraulic valve (3) Wired or wireless signal connection.

Accordingly, when the vehicle anti-lock braking control system of one embodiment of the present invention is in use and implemented, please refer to the second figure as shown in the figure. The implementation steps include: A. Vehicle acceleration and deceleration comparison: when the vehicle is in the During driving, the current deceleration (a _accmr ) and the previous deceleration (a _ref ) of the vehicle are measured by the accelerometer (41) of the controller (4), and then the controller (4) Compare the current deceleration (a _accmr ) of the vehicle measured by the accelerometer (41) with the deceleration acceleration (a _ref ) at the previous moment, so that the deceleration can be added or subtracted by the vehicle at the maximum acceptable value The speed system can further obtain information on the impact on the brake calipers, so as to avoid tire slippage caused by excessive vehicle deceleration; B. The first stage of braking: when the brake is applied, the controller (4) will send a control signal to the hydraulic valve ( 3), the hydraulic valve (3) will deliver hydraulic oil to the first oil circuit (15) of the brake caliper (1) through the first oil delivery pipe (31), so that the brake caliper (1) and its two caliper bodies ( 11) The first piston (13) moves toward the brake disc (2), so that the two first pistons (13) are respectively connected to press the plate (17) against the brake disc (2 ) in the first position (21), and the braking action of the first stage is generated at the larger radius of the brake disc (2); C. The second stage of braking: then the controller (4) will control the hydraulic valve ( 3) The hydraulic pressure delivered to the first oil passage (15) by the first oil delivery pipe (31) is gradually reduced, so that the first piston (13) is gradually retracted toward the opposite direction of the brake disc (2), and the second The hydraulic pressure delivered to the second oil circuit (16) by the oil delivery pipe (32) gradually increases, and the second piston (14) of the second caliper body (11) of the brake caliper (1) is pushed toward the brake disc (2), So that the two second pistons (14) are respectively pressed against the brake disc (2) through the connecting discs (17), so that the resistance of the two discs (17) to the brake disc (2) The pressing position is moved from a place with a larger radius to a position with a smaller radius of the brake disc (2), so as to produce a second-stage braking action on the brake disc (2).

Accordingly, by controlling the oil pressure distribution of the hydraulic valve (3), the first piston (13) and the second piston (14) of the brake caliper (1) can be changed to make the plate (17) and the brake disc ( 2) contact position, so that the action point of the pad (17) on the brake disc (2) gradually moves from a position with a larger radius to a position with a smaller radius, so that the braking torque gradually decreases from a large one, by The transfer of the braking torque achieves the effect of not locking the brakes. Please also refer to the third figure, which shows that the present invention and the existing anti-lock braking system (ABS) are tested on a test bench under the same conditions. Proposed "A New Approach of Antiskid Braking System (ABS) via Disk Pad Position Control (PPC) Method" paper pages 9 to 10, the test bench experiment system can be used to evaluate and verify the system of the present invention to identify various conditions for The influence of braking performance can also be used to perform conventional brakes and traditional ABS experimental tests, and from the experimental diagram of the third figure, it can be seen that the braking curve of the present invention is a smooth descending curve. The braking curve is jagged, so the braking curve It can be proved that the present invention does not vibrate when braking, and can effectively prevent adverse effects on the image and radar of light, small or electric vehicles. Please also refer to the fourth figure for the purpose The invention and the existing anti-lock braking system (ABS) were tested on the test bench under the same conditions. From the diagram of the experiment, it can be seen that the braking distance of the present invention is shorter than that of the existing anti-lock braking system, and no additional pump is required It is supplemented to generate anti-locking vibration of the wheel, so benefits such as reducing production costs can be achieved.

Furthermore, please also refer to the fifth figure, which is the second embodiment of the vehicle anti-lock braking control system of the present invention, which includes: two brake calipers (5), which include a first brake calipers (51) and A second brake caliper (52), which makes the first brake caliper (51) and the second brake caliper (52) assembled on the body of a vehicle, the first brake caliper (51) and the second brake caliper (52) are respectively provided with two relative caliper bodies, and form a braking zone respectively between the two caliper bodies of the first brake caliper (51) and the second brake caliper (52), and in the first brake caliper (51) ) and the second brake caliper (52) are provided with a piston on each side of the two caliper bodies adjacent to the braking zone, and an oil passage is respectively provided in the first brake caliper (51) and the second brake caliper (52), And the two ends of the oil circuit of the first brake caliper (51) and the second brake caliper (52) are respectively connected to the pistons of the two caliper bodies, and the first brake caliper (51) and the second brake caliper (52) Its braking zone is respectively provided with two relative pads (511), (521), and makes the two pads (511) of the first brake caliper (51) and the second brake caliper (52) , (521) are each connected to the pistons assembled with its two caliper bodies; a brake disc (6) is such that the brake disc (6) is assembled on one wheel of the vehicle and is located at the first brake caliper (51) and the second brake caliper (52) between the two pads (511), (521), and make the first brake caliper (51) its pad (511) and the brake disc (6 ) is defined as the first position (61), and the second brake caliper (52) is defined as the second position (62) where the plate (521) is in contact with the brake disc (6), And the radius from the center of the brake disc (6) to the first position (61) is larger than the radius from the center of the brake disc (6) to the second position (62); Two hydraulic valves (7) comprise a first hydraulic valve (71) and a second hydraulic valve (72), and the first hydraulic valve (71) and the second hydraulic valve (72) are hydraulic solenoid valves, which are The first hydraulic valve (71) and the second hydraulic valve (72) are assembled on the body of the vehicle, and each of the first hydraulic valve (71) and the second hydraulic valve (72) is connected with an oil delivery pipe ( 711), (721) one end, and the other end of the first hydraulic valve (71) and the second hydraulic valve (72) oil delivery pipe (711), (721) are respectively connected with the first brake caliper (51) and the second The oil circuit in the brake caliper (52) is connected; a controller (4), which makes the controller (4) assembled on the body of the vehicle, and the controller (4) is connected by wired or wireless signals There is an accelerometer (41), and the controller (4) is respectively connected with the first hydraulic valve (71) and the second hydraulic valve (72) with wired or wireless signals.

Thus, when the vehicle anti-lock braking control system of the second embodiment of the present invention is implemented in use, its implementation steps include: A. Vehicle acceleration and deceleration comparison: when the vehicle is running, it is determined by the controller ( 4) The accelerometer (41) measures the vehicle's current deceleration (a _accmr ) and the previous deceleration (a _ref ), and then the controller (4) measures the accelerometer (41) The current deceleration (a _accmr ) of the vehicle is compared with the previous deceleration (a _ref ) for reference, so that the deceleration is at the maximum acceptable value; B. Braking in the first stage: when the brake is applied, the control The device (4) will send a control signal to the first hydraulic valve (71), so that the first hydraulic valve (71) will deliver hydraulic oil to the first brake caliper (51) through its oil delivery pipe (711). Oil circuit, so that the piston of the first brake caliper (51) is pushed and connected so that the plate (511) is pressed against the first position (61) of the brake disc (6), and in the brake disc ( 6) The braking action of the first stage is generated at the larger radius; C. The second stage of braking: then the controller (4) will control the first hydraulic valve (71) and its oil delivery pipe (711) to send to the first brake caliper ( 51) the hydraulic pressure of the oil circuit is gradually reduced, so that the pad (511) of the first brake caliper (51) is gradually retracted in the opposite direction of the brake disc (6), and the oil delivery pipe of the second hydraulic valve (72) ( 721) The hydraulic pressure sent to the oil circuit of the second brake caliper (52) is gradually increased, so that the piston of the second brake caliper (52) is pushed and connected so that the plate (521) is pressed against the brake disc (6) The second position (62) of the brake disc (2), so that the pressing position of the brake disc (2) is moved from the larger radius to the smaller radius position of the brake disc (2), so that the brake disc (2) A second stage of braking action is generated.

Here, by controlling the oil pressure distribution of the two hydraulic valves (7), the contact state of the two brake calipers (5) at different positions of the brake disc (6) to the brake disc (2) can be changed, and The point of action on the brake disc (2) is gradually moved from the first brake caliper (51) at a position with a larger radius to the second brake caliper (52) at a position with a smaller radius, thereby transferring the braking torque to achieve braking It is not locked and avoids vibration and other effects when braking.

Please also refer to the sixth figure, which is the third embodiment of the vehicle anti-lock braking control system of the present invention, which includes: two brake calipers (5), which include a first brake calipers (51) and a first brake calipers Two brake calipers (52), are that the first brake calipers (51) and the second brake calipers (52) are assembled on the body of a vehicle, the first brake calipers (51) and the second brake calipers (52) ) are respectively provided with two relative caliper bodies, and a braking zone is respectively formed between the two caliper bodies of the first brake caliper (51) and the second brake caliper (52), and a braking zone is formed between the first brake caliper (51) and the second brake caliper (52). The second brake caliper (52) has a piston on each side of its two caliper bodies adjacent to the braking section, and an oil passage is respectively arranged in the first brake caliper (51) and the second brake caliper (52), and makes The two ends of the oil circuit of the first brake caliper (51) and the second brake caliper (52) are respectively connected to the pistons of the two caliper bodies, and the first brake caliper (51) and the second brake caliper (52) are connected to each other. ) are respectively provided with two relative land plates (511), (521) in its braking zone, and make the two land plates (511), ( 521) are respectively connected with the pistons of its two caliper assemblies; the two brake discs (8) comprise a first brake disc (81) and a second brake disc (82), so that the first brake disc (82) The disc (81) and the second brake disc (82) are assembled on one wheel of the vehicle, and are respectively located on the second brake disc (511) of the first brake caliper (51) and the second brake caliper (52). ), (521), and make the radius of the first brake disc (81) larger than the radius of the second brake disc (82), and make the first brake caliper (51) come to the plate (511) The position in contact with the first brake disc (81) is defined as the first position (811), In addition, the second brake caliper (52) is defined as the second position (821) where the pad (521) is in contact with the second brake disc (82), and the first brake disc (81) is defined as the second position (821). The radius from the center to the first position (811) is greater than the radius from the center of the second brake disc (82) to the second position (821); the two hydraulic valves (7) include a first hydraulic valve (71) and a second hydraulic valve (72), so that the first hydraulic valve (71) and the second hydraulic valve (72) are assembled on the body of the vehicle, and the first hydraulic valve (71) and the second hydraulic valve Two hydraulic valves (72) are respectively connected with an oil delivery pipe (711), (721) one end, and make the oil delivery pipe (711) of the first hydraulic valve (71) and the second hydraulic valve (72), (721) the other end is respectively connected with The oil circuits in the first brake caliper (51) and the second brake caliper (52) are connected; a controller (4) is to make the controller (4) be assembled on the vehicle body of the vehicle, the controller The controller (4) is connected with an accelerometer (41) by wired or wireless signals, and the controller (4) is connected with the first hydraulic valve (71) and the second hydraulic valve (72) respectively by wired or wireless signals .

According to this, when the vehicle anti-lock braking control system of its third embodiment of the present invention is implemented in use, its implementation steps include: A. Vehicle acceleration and deceleration comparison: when the vehicle is running, it is determined by the controller ( 4) The accelerometer (41) measures the vehicle's current deceleration (a _accmr ) and the previous deceleration (a _ref ), and then the controller (4) measures the accelerometer (41) The current deceleration (a _accmr ) of the vehicle is compared with the previous deceleration (a _ref ) for reference, so that the deceleration is at the maximum acceptable value; B. Braking in the first stage: when the brake is applied, the control The device (4) will send a control signal to the first hydraulic valve (71), so that the first hydraulic valve (71) will deliver hydraulic oil to the first brake caliper (51) through its oil delivery pipe (711). oil passage, so that the piston of the first brake caliper (51) is pushed and connected so that the plate (511) is pressed against the first position (811) of the first brake disc (81), and the radius is smaller The first position (811) of the first brake disc (81) produces the first-stage braking action; C. second-stage braking: then the controller (4) will control the first hydraulic valve (71) The hydraulic pressure delivered by the oil pipe (711) to the oil circuit of the first brake caliper (51) gradually decreases, so that the pad (511) of the first brake caliper (51) gradually moves toward the opposite direction of the first brake disc (81) Retract, and make the oil delivery pipe (721) of the second hydraulic valve (72) transfer to the hydraulic pressure of the oil circuit of the second brake caliper (52) gradually increase, so that the piston of the second brake caliper (52) is pushed and connected Let the plate (521) press against the second position (821) of the second brake disc (82), and move from the first position (811) of the first brake disc (81) with a larger radius to the At the second position (821) of the second brake disc (82) with a smaller radius, to produce the braking action of the second stage.

Accordingly, by controlling the oil pressure distribution of the two hydraulic valves (7), the contact state between the two brake calipers (5) and the two brake discs (8) with different radii can be changed, so as to achieve the same effect of making the braking point by radius The first position (811) of the larger first brake disc (81) gradually moves to the second position (821) of the second brake disc (82) with a smaller radius, whereby the transfer of the braking torque, To achieve the effects of not locking the brakes and no vibration during braking.

The aforementioned embodiments or drawings do not limit the implementation of the vehicle anti-lock braking control system and its implementation method of the present invention, and any appropriate changes or modifications made by those with ordinary knowledge in the technical field shall be deemed not to depart from this specification. The scope of patents for inventions.

As can be seen from the above structure and implementation, the present invention has the following advantages:

1. The vehicle anti-lock braking control system and its implementation method of the present invention can change at least one brake caliper by controlling the oil pressure distribution of the hydraulic valve to make the contact position of the disc and the brake disc, and the brake disc The point of action of the brake is gradually moved from a position with a larger radius to a position with a smaller radius, so that the braking torque gradually decreases from a large one, so that the braking torque is transferred to achieve the effect of not locking the brakes.

2. The braking curve of the vehicle anti-lock braking control system of the present invention and its implementation method is a smooth descending curve, which is different from the sawtooth braking curve of the existing anti-lock braking system of vehicles, so the braking curve of the present invention is smooth and descending It can be seen from the curve that the present invention does not generate vibration during braking, but can effectively prevent adverse effects on images and radars of light and small vehicles or electric vehicles.

3. The vehicle anti-lock braking control system of the present invention and its implementation method have a short braking distance, so it can effectively prevent traffic accidents such as rear-end collisions and collisions, and additional pumping is also performed to generate wheel anti-lock vibrations, which can achieve Reduce production costs and other benefits.

In summary, the embodiment of the present invention can indeed achieve the expected effect, and the specific structure disclosed by it has not only never been seen in similar products, nor has it been disclosed before the application. It has fully complied with the provisions of the Patent Law and It is really convenient to file an application for a patent for invention according to the law, to ask for the review, and to grant the patent.

1: brake calipers 11: Pliers 12: Braking interval 13: First Piston 14: Second piston 15: The first oil circuit 16: The second oil circuit 17: Lai Ling Film 2: Brake disc 21: First position 22: Second position 3: Hydraulic valve 31: The first oil pipeline 32: The second oil pipeline 4: Controller 41: Acceleration Gauge

Claims (10)

A vehicle anti-lock braking control system, comprising: A brake caliper is to make the brake caliper set on the body of a vehicle, the brake caliper is provided with two opposite caliper bodies, and a braking section is formed between the two caliper bodies, and the two caliper bodies and the A first piston and a second piston are set on the adjacent sides of the braking area, and a first oil passage and a second oil passage are provided in the brake caliper, and the two ends of the first oil passage are respectively connected to the The first pistons provided at the two caliper bodies are connected, and the two ends of the second oil passage are respectively connected with the second pistons provided at the two caliper bodies, and two opposite locking plates are provided in the braking section, and Connect the two locking pieces with the first piston and the second piston respectively located at the two caliper bodies; a brake disc such that the brake disc is mounted on one of the wheels of the vehicle between the two pads of the brake caliper and the first piston passes through the pad and the brake disc The position of indirect contact is defined as the first position, and the position where the second piston makes indirect contact with the brake disc through the pad is defined as the second position, and the radius from the center of the brake disc to the first position greater than the radius from the center of the brake disc to the second position; A hydraulic valve, the hydraulic valve group is arranged on the body of the vehicle, such that the hydraulic valve is connected to one end of a first oil delivery pipe and a second oil delivery pipe, and the other ends of the first oil delivery pipe and the second oil delivery pipe are respectively connected to The first oil passage and the second oil passage of the brake caliper are connected; A controller is installed on the body of the vehicle, and the controller is connected with the hydraulic valve signal. An implementation method of the vehicle anti-lock braking control system described in Claim 1, the implementation steps of which include: A. The first stage of braking: when the brake is applied, the controller will send a control signal to the hydraulic valve, and the hydraulic valve will send the hydraulic oil to the first oil circuit of the brake caliper through the first oil delivery pipe, so as to Push the first pistons of the two caliper bodies of the brake caliper toward the brake disc, and make the two first pistons respectively press the disc against the first position of the brake disc through the joint, and at the The braking action of the first stage is generated at the larger radius of the brake disc; B. Second-stage braking: Then the controller will control the hydraulic valve to gradually reduce the hydraulic pressure delivered to the first oil circuit by the first oil delivery pipe, so that the first piston will gradually retract toward the opposite direction of the brake disc In addition, the hydraulic pressure delivered to the second oil circuit by the second oil delivery pipe is gradually increased, and the second piston of the two caliper bodies of the brake caliper is pushed towards the brake disc, so that the two second pistons are respectively connected via The first piece is pressed against the brake disc, and the pressing position of the second piece against the brake disc is moved from a position with a larger radius to a position with a smaller radius of the brake disc. The brake disc produces the second stage of braking action. The implementation method of the vehicle anti-lock braking control system as described in Claim 2, wherein the controller is connected with an accelerometer signal, and before the first stage braking step is implemented, the step of comparing the acceleration and deceleration of the vehicle is carried out first, During the running of the vehicle, the current deceleration of the vehicle and the deceleration of the previous moment are measured by the accelerometer connected to the controller, and then the current deceleration and deceleration of the vehicle measured by the accelerometer are measured by the controller. The deceleration rate at the previous moment is compared with the reference, so that the deceleration rate is at the acceptable maximum value. A vehicle anti-lock braking control system, comprising: Two brake calipers, including a first brake caliper and a second brake caliper, so that the first brake caliper and the second brake caliper are assembled on the body of a vehicle, the first brake caliper and the second brake caliper There are two opposite caliper bodies respectively, and a braking zone is respectively formed between the two caliper bodies of the first brake caliper and the second brake caliper, and a braking zone is formed between the two caliper bodies of the first brake caliper and the second brake caliper and the brake A piston is provided in each group on the adjacent side of the section, and an oil circuit is respectively provided in the first brake caliper and the second brake caliper, and the two ends of the oil circuit of the first brake caliper and the second brake caliper are connected with the two caliper respectively. The pistons of the body assembly are connected, and in addition, there are two opposite pads in the braking zone of the first brake caliper and the second brake caliper, so that the two brake pads of the first brake caliper and the second brake caliper Each piece is connected with the piston assembled by the two caliper bodies; a brake disc, such that the brake disc is mounted on one of the wheels of the vehicle, between the two pads of the first brake caliper and the second brake caliper, and such that the first brake caliper The position where the pad is in contact with the brake disc is defined as the first position, and the position where the second brake caliper makes contact with the brake disc is defined as the second position, and the center of the brake disc is to the the radius of the first position is greater than the radius from the center of the brake disc to the second position; The second hydraulic valve includes a first hydraulic valve and a second hydraulic valve, so that the first hydraulic valve and the second hydraulic valve group are arranged on the body of the vehicle, and the first hydraulic valve and the second hydraulic valve Each of the hydraulic valves is connected to one end of an oil delivery pipe, and the other ends of the oil delivery pipes of the first hydraulic valve and the second hydraulic valve are respectively connected to the oil passages in the first brake caliper and the second brake caliper; A controller is installed on the body of the vehicle, and the controller is respectively connected to the first hydraulic valve and the second hydraulic valve for signals. An implementation method of the vehicle anti-lock braking control system described in claim 4, the implementation steps of which include: A. The first stage of braking: when the brake is applied, the controller will send a control signal to the first hydraulic valve, so that the first hydraulic valve will deliver the hydraulic oil to the oil of the first brake caliper through its oil delivery pipe Road, so that the piston of the first brake caliper is pushed and connected so that the plate is pressed against the first position of the brake disc, and the first stage of braking action is generated at the larger radius of the brake disc; B. Second stage braking: Then the controller will control the hydraulic pressure of the first hydraulic valve and its oil delivery pipe to the oil circuit of the first brake caliper to gradually decrease, so that the pad of the first brake caliper will gradually go to the first brake caliper. The brake disc is retracted in the opposite direction, and the hydraulic pressure delivered from the oil delivery pipe of the second hydraulic valve to the oil circuit of the second brake caliper is gradually increased, so that the piston of the second brake caliper is pushed and connected to press the pad At the second position of the brake disc, the pressure position of the brake disc is moved from a position with a larger radius to a position with a smaller radius of the brake disc, so as to generate a second stage pressure on the brake disc. brake action. The implementation method of the vehicle anti-lock braking control system as described in claim 5, wherein the controller is connected with an accelerometer signal, and before the first stage braking step is implemented, the step of comparing the acceleration and deceleration of the vehicle is carried out first, During the running of the vehicle, the current deceleration of the vehicle and the deceleration of the previous moment are measured by the accelerometer connected to the controller, and then the current deceleration and deceleration of the vehicle measured by the accelerometer are measured by the controller. The deceleration rate at the previous moment is compared with the reference, so that the deceleration rate is at the acceptable maximum value. A vehicle anti-lock braking control system, comprising: Two brake calipers, including a first brake caliper and a second brake caliper, so that the first brake caliper and the second brake caliper are assembled on the body of a vehicle, the first brake caliper and the second brake caliper Each is equipped with two opposite caliper bodies, and a braking zone is formed between the two caliper bodies of the first brake caliper and the second brake caliper, and a braking zone is formed between the two caliper bodies of the first brake caliper and the second brake caliper. A piston is provided in each group on the adjacent side of the section, and an oil circuit is respectively provided in the first brake caliper and the second brake caliper, and the two ends of the oil circuit of the first brake caliper and the second brake caliper are connected with the two caliper respectively. The pistons of the body assembly are connected, and in addition, there are two opposite pads in the braking zone of the first brake caliper and the second brake caliper, so that the two brake pads of the first brake caliper and the second brake caliper Each piece is connected with the piston assembled by the two caliper bodies; Two brake discs, comprising a first brake disc and a second brake disc, such that the first brake disc and the second brake disc are set on one wheel of the vehicle, and the first The brake disc and the second brake disc are respectively located between the two pads of the first brake caliper and the second brake caliper, and the radius of the first brake disc is larger than the radius of the second brake disc, and the The position where the first brake caliper makes contact with the first brake disc is defined as the first position, and the position where the second brake caliper makes contact with the second brake disc is defined as the second position. position, and the radius from the center of the first brake disc to the first position is greater than the radius from the center of the second brake disc to the second position; The second hydraulic valve includes a first hydraulic valve and a second hydraulic valve, so that the first hydraulic valve and the second hydraulic valve group are arranged on the body of the vehicle, and the first hydraulic valve and the second hydraulic valve Each of the hydraulic valves is connected to one end of an oil delivery pipe, and the other ends of the oil delivery pipes of the first hydraulic valve and the second hydraulic valve are respectively connected to the oil passages in the first brake caliper and the second brake caliper; A controller is installed on the body of the vehicle, and the controller is respectively connected to the first hydraulic valve and the second hydraulic valve for signals. An implementation method of the vehicle anti-lock braking control system described in Claim 7, the implementation steps of which include: A. The first stage of braking: when the brake is applied, the controller will send a control signal to the first hydraulic valve, so that the first hydraulic valve will deliver the hydraulic oil to the oil of the first brake caliper through its oil delivery pipe Road, so that the piston of the first brake caliper is pushed and connected so that the plate is pressed against the first position of the first brake disc, and at the first position of the first brake disc with a larger radius The braking action of the first stage; B. Second stage braking: Then the controller will control the hydraulic pressure of the first hydraulic valve and its oil delivery pipe to the oil circuit of the first brake caliper to gradually decrease, so that the pad of the first brake caliper will gradually go to the first brake caliper. The first brake disc is retracted in the opposite direction, and the hydraulic pressure delivered from the oil delivery pipe of the second hydraulic valve to the oil circuit of the second brake caliper is gradually increased, so that the piston of the second brake caliper pushes the connecting disc. Pressing against the second position of the second brake disc, and moving from the first position of the first brake disc with a larger radius to the second position of the second brake disc with a smaller radius, to generate The second stage of braking action. The implementation method of the vehicle anti-lock braking control system as described in claim 8, wherein the controller is connected with an accelerometer signal, and before the first stage braking step is implemented, the step of comparing the acceleration and deceleration of the vehicle is carried out first, During the running of the vehicle, the current deceleration of the vehicle and the deceleration of the previous moment are measured by the accelerometer connected to the controller, and then the current deceleration and deceleration of the vehicle measured by the accelerometer are measured by the controller. The deceleration rate at the previous moment is compared with the reference, so that the deceleration rate is at the acceptable maximum value. The vehicle anti-lock braking control system as described in claim 1, 4 or 7, wherein the controller is connected with an accelerometer signal.

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