CN111845674A - An inertial vehicle braking anti-lock device and method - Google Patents

Abstract

The invention discloses an inertial vehicle braking anti-lock device and a method, wherein the device comprises a storage battery, an ECU, an anti-lock regulator, a braking regulation component and a brake; the anti-lock regulator senses the deceleration data of the automobile and regulates the braking time interval; the brake is braked by the brake adjusting component; the ECU is connected with an anti-lock regulator; the anti-lock regulator comprises a grounding piece, a conductor pointer, a ball bearing, a light rod, an electromagnet, a heavy object and a rheostat; the conductor pointer, the ball bearing and the heavy object are connected through the light rod and are positioned on the same straight line; the ECU controls the working state of the anti-lock regulator by changing the resistance value of the rheostat. The brake adjusting assembly comprises a brake pedal switch, a coil, a spring, a pull rod, a hydraulic cylinder and a piston; the spring is positioned on the pull rod, one end of the pull rod is connected with the piston, and the pull rod drives the piston to move under the action of the attractive force of the coil. The invention is based on the inertia principle, exerts the brake efficiency to the maximum extent under the emergency braking, and reduces the accident rate.

Description

An inertial vehicle braking anti-lock device and method

technical field

The invention relates to an anti-lock braking device, in particular to an inertial vehicle braking anti-lock braking device and method.

Background technique

At present, with the growth of car ownership, the incidence of traffic accidents also increases. Therefore, people's demands for the safety of automobiles are increasing day by day. The braking performance of a car is one of the important factors to ensure the safety of the car. Major traffic accidents are often related to the excessive braking distance of the car and the occurrence of sideslip during emergency braking.

At present, the installation and use of ABS is not popular, especially in the application of motorcycles and electric vehicles. Therefore, the current use of ABS still has limitations.

When the ABS is working, when the car decelerates, the deceleration sensor converts the received deceleration signal into an electrical signal and transmits it to the electronic control unit ECU. The state of rolling and slipping ensures that the adhesion between the wheel and the ground is at the maximum value. It can be seen that the deceleration sensor is the primary condition for the ABS to enter the working state. Once the sensitivity of the deceleration sensor is reduced or damaged, it will directly increase the danger of vehicle driving. But at present, the maintenance cost of ABS is expensive, and it is not convenient to replace the whole set.

SUMMARY OF THE INVENTION

Purpose of the invention: In view of the defects existing in the prior art, the present invention provides an inertial vehicle braking anti-lock braking device and method, to replace the application of the deceleration sensor in the conventional ABS braking system, while ensuring the work of the ABS , reducing maintenance costs.

Technical solution: the inertial vehicle braking anti-lock braking device of the present invention includes a battery, an ECU, an anti-locking regulator, a brake regulating component and a brake; the anti-locking regulator senses the deceleration data of the vehicle and adjusts the braking time interval;

The brake is braked by the brake adjustment component; the ECU is connected with the anti-lock brake adjuster;

The anti-lock adjuster includes ground iron, conductor pointer, ball bearing, light rod, electromagnet, heavy object and varistor; the conductor pointer, ball bearing and heavy object are connected by light rod and located on the same line;

The ECU controls the working state of the anti-lock brake regulator by changing the resistance of the varistor.

The brake adjustment assembly includes a brake pedal switch, a coil, a spring, a pull rod, a hydraulic cylinder and a piston; the spring is located on the pull rod, one end of the pull rod is connected with the piston, and the pull rod drives the piston to move under the gravitational force of the coil.

The anti-lock brake adjuster also includes a copper sheet and a fixed bolt. The conductor pointer and the light rod are fixed on the outer ring of the ball bearing through the copper sheet and the fixed bolt, so that when the ball bearing is the center of the circle, the clamp between the ground and the light rod The angle is equal to the angle between the contact and the conductor pointer.

X contacts and Y contacts are arranged on both sides of the anti-lock brake regulator housing, and Z contacts are arranged at the bottom of the housing, and the Z contacts are connected to the ECU.

The X contact is connected to the positive pole of the battery through a wire, and the Y contact is connected to the coil through the brake pedal switch. The X contacts are towards the front of the car and the Y contacts are towards the back of the car.

The inertial vehicle braking anti-lock braking method of the present invention comprises the following steps:

(1) When the brake pedal is stepped on, the external circuit of the anti-lock regulator controlled by the ECU is turned on, the coil attracts the pull rod to make the hydraulic cylinder drive the brake to work, and the car starts to decelerate;

(2) The heavy object is accelerated forward by inertia, and rotates around the ball bearing together with the light rod and the conductor pointer; when the heavy object is in contact with the grounding iron, the conductor pointer also rotates to contact the contact point, and the anti-lock is at this time. Dead regulator external circuit is disconnected but internal circuit is on;

(3) The electromagnet works, attracting the heavy object in contact with the grounding iron back to its original position, the circuit between the X contact and the Y contact is disconnected, the coil stops working, the pull rod returns under the action of the spring, the braking force disappears, and the wheel is released. brake;

At this time, the car is in deceleration, and the heavy object moves from its original position to the grounding iron. After touching the grounding iron, the car brakes again, and so on and repeats the movement until it stops.

Beneficial effect: Compared with the prior art, the present invention has the following advantages:

(1) The present invention is based on the principle of inertia, adopts modular design, has high cost performance, high sensitivity and high flexibility.

(2) The ABS anti-lock braking device of the present invention is applied to low-grade automobiles, motorcycles and electric vehicles, and maximizes the braking efficiency under emergency braking conditions, thereby reducing the accident rate.

Description of drawings

1 is a schematic structural diagram of an inertial ABS anti-lock braking device of the present invention;

2 is a schematic structural diagram of an anti-lock regulator in the present invention;

3 is a schematic diagram of the internal structure of the anti-lock regulator in the present invention;

FIG. 4 is a partial schematic diagram of the anti-lock adjuster in the present invention.

Detailed ways

As shown in Figures 1 and 2, the anti-lock braking device of the present invention includes a battery 8, an ECU, an anti-lock regulator 9 and a brake 14; the anti-lock regulator 9 is used to accurately sense vehicle deceleration data, and adjust the Braking time interval. The brake 14 is braked by a brake adjustment assembly.

The housing of the anti-lock adjuster 9 is a detachable square box body, the length of the box body is 12cm, the width is 5cm, and the height is 10cm. Two contacts, X and Y, are respectively arranged on the front and rear walls of the box body. The X contact points to the front of the car, and the Y contact points to the rear of the car. At the same time, a Z contact is set at the bottom of the box to be connected to the ECU, and the ECU controls the ABS braking time interval through the anti-lock brake regulator 9, so as to achieve better braking effect in different road conditions.

The X and Y contacts outside the anti-lock regulator 9 are connected to the external circuit, and the ECU is connected to the varistor through the Z contact, so the ECU controls the internal work of the anti-lock regulator by changing the resistance of the varistor to the circuit. state.

As shown in FIG. 3 , the anti-lock adjuster 9 includes a ground 1 , a conductor pointer 2 , a ball bearing 3 , a light rod 4 , an electromagnet 5 and a varistor 7 . Among them, the ground iron 1, the ball bearing 3, the electromagnet 5, and the varistor 7 are all fixed on the casing of the regulator, and they are connected by wires. The inner ring of the ball bearing 3 is fixed on the housing through the central shaft, the conductor pointer 2 and the light rod 4 are fixed on the outer ring of the ball bearing 3 in the manner shown in FIG. 3 , the conductor pointer 2 and the light rod 4 are relative to the bearing. The outer ring is symmetrically arranged and fixed by the arc-shaped copper sheet c, and the upper and lower contact positions are fixed with the fixing bolt b, so that when the ball bearing 3 is the center of the circle, the angle between the ground 1 and the light rod 4 is the same as the contact point. The angle between a and the conductor pointer 2 is equal, so when the weight G at the end of the light rod 4 rotates to contact the ground 1, the conductor pointer 2 also rotates to contact the contact a.

Among them, the conductor pointer, the ball bearing and the heavy object G are connected by a light rod, and the light rod is provided with a resistor R1. The conductor pointer, the ball spring and the weight G are fixed and are always on the same straight line. The weight G is a solid iron ball with copper plating on the outer surface, which is conductive and can be attracted by the electromagnet.

The circuits between the main components inside the anti-lock regulator 9 are connected as shown in FIG. 3 . There is a wire inside the light rod 4 and is connected to the resistor R1. The part of the wire is exposed at the fixed part of the arc copper sheet and is in contact with the arc copper sheet c. The holes on the iron ball inside the light rod 4 and the weight G are in The threads are engaged, and the wire at the lower end of the light rod is in contact with the external copper plating of the heavy object G. Therefore, when the anti-lock regulator works, the weight G is in contact with the ground, and the conductor pointer is in contact with the contact a, the two lines inside the anti-lock regulator are both conductive. Line 1: X contact-ground-heavy object G-light rod-conductor pointer-contact a-Y contact; line 2: X contact-ground-varistor-electromagnet-conductor pointer-contact a-Y contact . In addition, the ECU has a circuit separately connected to the external circuit connected to the X contact and the Y contact. For the external circuit of the anti-lock regulator, the ECU can independently control the circuit on and off.

The brake adjustment assembly includes a brake pedal switch 10, a coil 11, a spring 12, a pull rod 13, a hydraulic cylinder 17 and a piston 18; wherein the battery 8, the ECU, the anti-lock brake adjuster 9, the brake pedal switch 10, the coil 11 and The safety resistors are connected by wires. The X contact is connected to the positive pole of the battery 8 through a wire, and the Y contact is connected to the coil 11 through a wire through the brake pedal switch 10 . In the figure, the pull rod 13 is an iron component with one end thin and the other thick, and the middle protrudes, and the protruding part is used to bear the spring force. The thinner part of one end of the tie rod 13 is connected to the piston 18 of the hydraulic cylinder, which can drive the piston 18 to move; The hydraulic cylinder 17 is a closed cylinder, which contains the brake fluid 16 and the brake piston 18 . When the coil 11 is not energized, under the action of the spring 12, the pull rod is at the leftmost end, the hydraulic cylinder 17 does not work, and the brake 14 is in a relaxed state; Move to the right, the hydraulic cylinder works, the brake piston 18 compresses the brake fluid 16, the pressure is transmitted to the brake 14 through the brake fluid 16 in the brake oil pipe 15, the brake 14 works, compresses the hub, and decelerates the car.

The anti-lock braking method of the inertial ABS anti-lock braking device of the present invention is as follows:

When the car is running normally, the brake pedal 10 is not stepped on, and the ABS system does not work.

When the driver brakes in an emergency, the moment the brake pedal is stepped on, the external circuit of the anti-lock brake regulator 9 controlled by the ECU is turned on, and the whole circuit is also turned on. The coil 11 works, the pull rod 13 is pulled to make the hydraulic cylinder 17 work, the brake fluid 16 generates pressure, and the brake 14 works to achieve the braking effect, and the car starts to decelerate.

During the deceleration process of the car, the weight G is accelerated forward by inertia, and rotates around the ball bearing 3 together with the light rod 4 and the conductor pointer 2 . When the weight G moves to contact the ground 1, the conductor pointer 2 also rotates to contact the contact a. At this time, the circuit from the X contact to the Y contact is turned on, the electrical signal is transmitted to the ECU, and the external circuit of the anti-lock regulator 9 controlled by the ECU is disconnected. However, the internal circuit of the anti-lock regulator is conducting, so the brakes are still working.

In the circuit of the heavy object G circuit 1: "X contact - ground - heavy object G - light rod - conductor pointer - contact a - Y contact" is connected, at the same time, another rheostat in the anti-lock regulator 9 And the electromagnet circuit is also connected. The electromagnet works, attracting the heavy object G that is in contact with the ground, so the heavy object G and the ground are disconnected and returned to the original position, the circuit from the X contact to the Y contact is disconnected, and the overall circuit is also disconnected. Therefore, the coil 11 stops working, the pull rod 13 returns to the position under the action of the spring 12, the braking force disappears, and the wheel is released from the brake.

At this time, the car is still in a state of deceleration, and the heavy object G moves from its original position to the grounding iron. After touching the grounding iron, the car brakes briefly again. In this cycle, the brake acts as a "point brake" until it stops.

The ECU controls the resistance of the varistor connected to the circuit, changes the voltage across the electromagnet, changes the magnitude of the electromagnetic force, and changes the movement time of the heavy object G, which plays the role of changing the time interval of the car's "spot braking". In this way, the car has a good braking effect under different road conditions.

Claims (6)

1. An inertial vehicle braking anti-lock device, characterized in that: comprising a battery (8), an ECU, an anti-lock regulator (9), a brake adjustment assembly and a brake (14); The brake is braked by a brake adjustment component; the ECU is connected with an anti-lock brake adjuster; The anti-lock adjuster comprises a ground (1), a conductor pointer (2), a ball bearing (3), a light rod (4), an electromagnet (5), a weight (6) and a varistor (7); The conductor pointer, the ball bearing and the heavy object are connected by a light rod and are located on the same straight line; The ECU controls the working state of the anti-lock brake regulator by changing the resistance value of the varistor. 2. The inertial vehicle braking anti-lock braking device according to claim 1, characterized in that: the brake adjusting assembly comprises a brake pedal switch (10), a coil (11), a spring (12), a pull rod ( 13), a hydraulic cylinder (17) and a piston (18); the spring is located on the pull rod, one end of the pull rod is connected to the piston, and the pull rod drives the piston to move under the gravitational force of the coil. 3. The inertial vehicle braking anti-lock braking device according to claim 1, characterized in that: the anti-lock braking regulator further comprises a copper sheet (a) and a fixing bolt (b), the conductor pointer is connected with the light The mass rod is fixed to the outer ring of the ball bearing by copper sheets and fixing bolts. 4. The inertial vehicle braking anti-lock device according to claim 1, characterized in that: X contacts and Y contacts are arranged on both sides of the anti-lock regulator housing, and Z contacts are arranged on the bottom of the housing Contact, the Z contact is connected to the ECU. 5. The inertial vehicle braking anti-lock braking device according to claim 4, wherein the X contact is connected to the battery, and the Y contact is connected to the coil (11) through a brake pedal switch. 6. An inertial vehicle braking anti-lock braking method is characterized in that: adopting the inertial vehicle braking anti-lock braking device according to any one of claims 1 to 5, the method comprises the following steps: (1) When the brake pedal is stepped on, the external circuit of the anti-lock regulator controlled by the ECU is turned on, the coil attracts the pull rod to make the hydraulic cylinder drive the brake to work, and the car starts to decelerate; (2) The weight is accelerated forward by inertia, and rotates around the ball bearing together with the light rod and the conductor pointer; when the weight is in contact with the ground, the conductor pointer also rotates to contact the contact point (a). When the external circuit of the anti-lock brake regulator is disconnected but the internal circuit is turned on; (3) The electromagnet works, attracting the heavy object in contact with the ground to return to its original position, the X contact and the Y contact circuit are disconnected, the coil stops working, the pull rod is returned under the action of the spring, and the wheel is released from the brake; this When the car is decelerating, the heavy object moves from the original position to the grounding iron. After touching the grounding iron, the car brakes again, and so on and repeats the movement until it stops.

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