CN113147699A

CN113147699A - Electronic controller of inertial type braking anti-lock braking system

Info

Publication number: CN113147699A
Application number: CN202110380120.9A
Authority: CN
Inventors: 刘沈佳; 邢振宇; 翟仁; 夏怡; 王可怡; 张通; 恽辰; 吕月; 刘永臣
Original assignee: Huaiyin Institute of Technology
Current assignee: Huaiyin Institute of Technology
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-07-23

Abstract

The invention discloses an electronic controller of an inertial type braking anti-lock braking system, which comprises a deceleration sensor and an electronic controller which are arranged on a vehicle body, a wheel speed sensor arranged on a wheel, and a braking force regulator connected with a braking switch; the speed reduction sensor is internally provided with two mercury switches with different angles, and the two mercury switches with different angles are connected in parallel through a lead and then are connected with the electronic controller, the hand brake switch and the rain and snow switch; the electronic controller is provided with a field effect tube and an NE555 pulse module; the field effect tube is connected with a negative power supply of the brake force regulator, and a positive power supply of the brake force regulator is connected with a brake switch or a storage battery; the NE555 pulse module is connected with the wheel speed sensor, the rain and snow switch and the two mercury switches connected in parallel. The invention can eliminate dangerous phenomena such as vehicle braking deviation, sideslip and the like; the braking efficiency and the safety factor are provided, and the traffic accident rate is reduced.

Description

Electronic controller of inertial type braking anti-lock braking system

Technical Field

The invention relates to the technical field of vehicle brake control, in particular to an electronic controller of an inertial type anti-lock brake system.

Background

With the development of the automobile industry, the traffic flow and the density of vehicles are continuously increased, the vehicle technology and the driving speed are continuously improved, traffic accidents frequently occur, and the ABS is one of effective means for reducing the accidents. The anti-lock brake for vehicle is developed based on the principle that the adhesion property of tyre and ground is changed along with the slip rate, so as to prevent the wheel from locking, avoid the loss of steering ability of the sideslip and the drift of the vehicle and achieve the purpose of improving the stability, the maneuverability and the safety of the vehicle.

However, the control part in the existing anti-lock brake system is not perfect, and the anti-lock brake system of the vehicle has no good control effect. Different models need to be provided with different controllers, and the universal controller cannot be used universally. In addition, the chip is restricted by foreign countries and is greatly influenced by magnetic fields and electromagnetic waves, so improvement is urgently needed.

Disclosure of Invention

In order to solve the technical problem, the invention provides an electronic controller of an inertial type braking anti-lock braking system; the technical problem can be effectively solved.

The invention is realized by the following technical scheme:

an electronic controller of an inertial type braking anti-lock braking system comprises a deceleration sensor and an electronic controller which are arranged on a vehicle body, a wheel speed sensor arranged on a wheel, and a braking force adjuster connected with a braking switch, wherein the output end of the braking force adjuster is hydraulically connected with a braking caliper;

the speed reduction sensor is internally provided with two mercury switches with different angles, and the two mercury switches with different angles are connected in parallel through a lead and then are connected with the electronic controller, the hand brake switch and the rain and snow switch;

the electronic controller is provided with a field effect tube and a pulse frequency rectangular square wave generation module; the field effect tube is connected with a negative power supply of the brake force regulator, and a positive power supply of the brake force regulator is connected with a brake switch or a storage battery; the pulse frequency rectangular square wave generation module is connected with the wheel speed sensor, the rain and snow switch and the two mercury switches connected in parallel.

Further, the two mercury switches with different angles are composed of a mercury switch with a front height of 15 ︒ and a mercury switch with a front height of 8 ︒, and the two mercury switches are obliquely fixed in the same shell side by side; the mercury switch with the front height of 15 ︒ is used for braking on a high-adhesion road surface, and the mercury switch with the front height of 8 ︒ is used for braking on a low-adhesion road surface; and detecting the deceleration change condition of the vehicle in braking.

Furthermore, the lower parts of the mercury switch with the front height of 15 ︒ and the mercury switch with the front height of 8 ︒ are respectively connected in parallel through a lead, and the two mercury switches after being connected in parallel are connected with the positive power supply of the hand brake switch; meanwhile, the two mercury switches which are connected in parallel are connected with a K3 terminal in the rain and snow switch through a 200 ohm resistor; the upper lead of the mercury switch with the front height of 15 ︒ is connected with a 50-ohm resistor in series and then is connected with an anode power supply of an electronic controller, and the anode power supply is connected into a pulse frequency rectangular square wave generation module; the pulse frequency rectangular square wave generation module can be protected from being broken down by large current.

Furthermore, the rain and snow switch comprises a double-pole switch and an indicator light; the first knife switch in the double-knife switch is provided with two binding posts K1 and K2, and the binding posts K1 and K2 are respectively connected with a mercury switch with the front height of 15 ︒ and a mercury switch with the front height of 8 ︒; the second knife switch in the double-knife switch is provided with two terminals K3 and K4, terminal K3 is connected with electronic controller, and terminal K4 is connected with the pilot lamp.

Further, the indicator light comprises light emitting diodes D1 and D2; the wiring terminal K4 is connected with the anodes of the light emitting diodes D1 and D2, and the cathode of the light emitting diode D1 is connected with the wheel speed sensor and grounded; the cathode of the light emitting diode D2 is connected with the drain electrode of a field effect tube in the electronic controller; led D1 is a green led, led D2 is a red led; in the electronic controller, each field effect tube is provided with a red light emitting diode.

Further, the wheel speed sensor comprises a gear disc and a magnetic head; the gear disc is formed by forming a plurality of rectangular holes on the periphery of the brake disc; the magnetic head consists of a horseshoe-shaped permanent magnet and a coil, two magnetic poles of an N pole and an S pole of the permanent magnet are opposite to the rectangular hole of the gear disc, and the distance is less than or equal to 0.5 mm; and one end of a coil on the magnetic head is grounded, and the other end of the coil is connected with an electronic controller.

Furthermore, the wheel speed sensor is arranged on the wheel, and when the wheel rolls fast, a coil on the magnetic head generates direct current; when the wheel rolls slowly or stops rotating, the coil on the magnetic head does not generate electricity; the coil becomes the conducting wire of the electronic controller grounding and provides the negative current for the electronic controller.

Further, a pulse frequency rectangular square wave generation module in the electronic controller is a pulse frequency rectangular square wave generation module with the model number of NE 555; two variable resistors in the NE555 pulse frequency rectangular square wave generation module are replaced by two fixed resistors.

Further, the NE555 pulse frequency rectangular square wave generating module is provided with a hydraulic brake pulse mode and a drum brake pulse mode;

the pulse frequency of the hydraulic braking pulse mode is 4-5 times/second, the square wave proportion is 6:4, the braking time is 60%, and the relaxation time is 40%;

the pulse frequency of the drum brake pulse mode is 2-3 times/second, the square wave ratio is 5:5, the braking time is 50%, and the relaxation time is 50%.

Furthermore, a field effect tube in the electronic controller is provided with a radiating fin for radiating heat; the radiating fins and the field effect tube are bonded and pressed by silicone grease.

Advantageous effects

Compared with the traditional anti-lock brake device, the electronic controller of the inertial type braking anti-lock brake system has the following beneficial effects:

(1) according to the technical scheme, a speed reduction sensor, a rain and snow switch, an electronic controller, a wheel speed sensor and a brake adjuster are matched with each other, a mercury switch in the speed reduction sensor forms a switch of a positive electrode of a power supply of the electronic controller, the wheel speed sensor forms a switch of a negative electrode of the power supply of the electronic controller, a field effect tube in the electronic controller forms a switch of a negative electrode power supply of the brake adjuster, and the adjuster is a switch for hydraulic lifting of a brake caliper; the components are mutually matched to form a novel electronic control device of an inertial type braking anti-lock braking system, and the pulse frequency sent by a pulse frequency rectangular square wave generating module in an electronic controller is utilized, so that a brake is used for carrying out 'inching' switch of 'braking-releasing-braking' on a wheel, the phenomenon that the wheel is locked by the brake is eliminated, and the braking distance is shortened; dangerous phenomena such as vehicle braking deviation, sideslip and the like can be eliminated; the braking efficiency and the safety factor are provided, and the traffic accident rate is reduced.

(2) According to the technical scheme, the two mercury switches with different angles are adopted, and the interference of any magnetic field and electromagnetic wave is avoided; the inertia type anti-lock braking system leads mercury to tilt forward under the condition of emergency braking to be connected with a control circuit through inertia during braking, and can be connected with different braking circuits under different working conditions or road conditions; the braking force of the brake can be adjusted on a rainy and snowy road surface, and the safety factor of the brake is improved.

Drawings

FIG. 1 is a schematic diagram of the overall system framework of the present invention.

Fig. 2 is a schematic view of the structure of the deceleration sensor in the present invention.

In the drawings are labeled: 1-connecting with an electronic controller, 2-connecting with a hand brake switch and 3-connecting with a switch for rain and snow.

Fig. 3 is a schematic circuit diagram of the rain and snow switch according to the present invention.

In the drawings are labeled: a-double pole switch, b-indicator light, 1-front 15 ︒ mercury switch, 2-front 8 ︒ mercury switch, R2-200 ohm resistor, D1-green LED, and D2-red LED.

Fig. 4 is a schematic circuit diagram of the electronic controller of the front and rear disc type according to the present invention.

In the drawings are labeled: the brake system comprises a mercury switch 1-front 15 ︒, a power supply anode 2-12V, a mercury switch 3-front 8 ︒, a wheel speed sensor 4-5, an indicator lamp 5, a brake regulator 6, a brake regulator cathode 7-12V, a resistor R1-50 ohms, a resistor R2-200 ohms, a field-effect transistor IRFP460 module, an S-cooling fin, an E-NE555 pulse module and a Z-deceleration sensor.

Fig. 5 is a schematic circuit diagram of the electronic controller of the front disc rear drum type in the present invention.

Fig. 6 is a schematic circuit diagram of an electronic controller of a front drum and a rear drum type according to the present invention.

In the drawings are labeled: the automobile brake system comprises a mercury switch 1-front 15 ︒, a power supply anode 2-12V, a mercury switch 3-front 8 ︒, a 4-indicator light, a brake adjuster cathode 5, a power supply cathode 6-12V, a resistor R1-50 ohms, a resistor R2-200 ohms, a T-field effect tube IRFP460 module, an S-cooling fin, an E-NE555 pulse module and a Z-deceleration sensor.

Fig. 7 is a schematic circuit diagram of the electronic controller for a single front wheel of the present invention.

In the drawings are labeled: the power supply comprises a 1-12V power supply anode, a 2-12V power supply cathode, a 3-brake regulator cathode, an R-50 ohm resistor, a T-field effect tube IRFP460 module, an S-radiating fin and an E-NE555 pulse module.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1

As shown in fig. 1, an electronic controller of an inertia type anti-lock brake system includes a deceleration sensor and an electronic controller mounted on a vehicle body, a wheel speed sensor mounted on a wheel, and a brake modulator connected to a brake switch, an output end of the brake modulator being hydraulically connected to a brake caliper; the speed reduction sensor is internally provided with two mercury switches with different angles, and the two mercury switches with different angles are connected in parallel through a lead and then are connected with the electronic controller, the hand brake switch and the rain and snow switch; the electronic controller is provided with a field effect tube and a pulse frequency rectangular square wave generation module; the field effect tube is connected with a negative power supply of the brake force regulator, and a positive power supply of the brake force regulator is connected with a brake switch or a storage battery; the pulse frequency rectangular square wave generation module is connected with the wheel speed sensor, the rain and snow switch and the two mercury switches connected in parallel. In this embodiment, the field effect transistor is a field effect transistor chip with a model number IRFP 460; the pulse frequency rectangular square wave generation module adopts a pulse frequency rectangular square wave generation module with the model number of NE 555; the NE555 pulse module is called as follows.

As shown in fig. 2, the two mercury switches with different angles in the deceleration sensor are composed of a mercury switch with a front height of 15 ︒ and a mercury switch with a front height of 8 ︒, which are obliquely fixed in the same shell side by side; the mercury switch with the front height of 15 ︒ is used for braking on a high-adhesion road surface, and the mercury switch with the front height of 8 ︒ is used for braking on a low-adhesion road surface; and detecting the deceleration change condition of the vehicle in braking.

The lower parts of the mercury switch with the front height of 15 ︒ and the mercury switch with the front height of 8 ︒ are respectively connected in parallel through a lead, and the two mercury switches after being connected in parallel are connected with the positive power supply of the hand brake switch; meanwhile, the two mercury switches which are connected in parallel are connected with a K3 terminal in a rain and snow switch through a 200-ohm resistor R2; the upper lead of the mercury switch with the front height of 15 ︒ is connected with a 50-ohm resistor R1 in series and then is connected with a positive power supply of an electronic controller, and the positive power supply is connected into an NE555 pulse module; the NE555 pulse module can be protected from being broken down by large current. During the assembly of the deceleration sensor, the long leads of the two mercury switches are placed on the lower side and connected with the 12V positive electrode, and the short leads are placed on the upper side and connected with the mercury switch with the front height of 15 degrees and the mercury switch with the front height of 8 degrees.

When the vehicle performs general deceleration or parking brake during running on a high-adhesion road surface, the brake force of the brake is smaller than the road surface brake force, the inertia of the vehicle is small, and mercury in the mercury switch cannot climb up a 15-degree high slope, so that the positive power supply of the NE555 pulse module in the electronic controller cannot be connected. When the vehicle is emergently braked, the braking force of front and rear wheels of the vehicle is larger, when the front wheels are in a locking state, the inertia of the vehicle is larger, and the mass center moves forwards; more than 60% of mass is pressed towards the front wheel, so that the front vehicle body sinks, the 15-degree slope in the mercury switch is changed into a 12-degree slope, mercury in the mercury switch with the height of 15 degrees at the front can climb up the 12-degree slope in the inertia force, and a positive power supply of an electronic controller is connected; meanwhile, when the wheel is influenced by braking force and does not rotate, a wheel magnetic head coil in the wheel sensor is in a non-power generation state to form a grounded negative power supply lead, and negative current is input to the electronic controller, so that the braking regulator is immediately commanded to adjust the braking force of the brake, the dragging and slipping phenomenon that the brake locks the wheel is changed into 'inching' braking of 'braking-releasing-braking'.

When the vehicle speed is reduced to about 10Km/h in the later stage of braking, the inertia of the vehicle basically disappears, the inertia force of mercury also gradually disappears, the vehicle naturally returns under the influence of gravity, and the positive power supply of the electronic controller is interrupted, so that the brake system is withdrawn from the brake control system, the vehicle is restored to normal braking, and the brake locks the wheels again to force the vehicle to stop.

As shown in fig. 3, the rain and snow switch comprises a double-pole switch (a) and an indicator light (b); the first knife switch in the double-knife switch is provided with two binding posts K1 and K2, and the binding posts K1 and K2 are respectively connected with a mercury switch with the front height of 15 ︒ and a mercury switch with the front height of 8 ︒; the second knife switch in the double-knife switch is provided with two terminals K3 and K4, terminal K3 is connected with electronic controller, and terminal K4 is connected with the pilot lamp.

The indicator light comprises light emitting diodes D1 and D2; the wiring terminal K4 is connected with the anodes of the light emitting diodes D1 and D2, and the cathode of the light emitting diode D1 is connected with the wheel speed sensor and grounded; the cathode of the light emitting diode D2 is connected with the drain electrode of a field effect tube in the electronic controller; led D1 is a green led, led D2 is a red led; in the electronic controller, each field effect tube is provided with a red light emitting diode.

When the vehicle runs on a rainy or snowy road surface, the inertia generated during emergency braking of the vehicle is small due to small friction coefficient and adhesive force of the road surface, and the mercury switch with the front height of 15 ︒ cannot climb up a high slope and cannot be connected with the positive power supply of the electronic controller; therefore, before the vehicle runs on a road surface with low friction coefficient and adhesive force, the double-pole switch needs to be pressed down in advance, so that the mercury switch with the front height of 15 ︒ and the mercury switch with the front height of 8 ︒ are connected in parallel, and the green indicator lamp is normally on; the mercury switch indicating that the braking system has activated the front height of 8 ︒ is connected to a positive power supply to the electronic controller.

When the vehicle is braked, if the red light is on at a moment, the brake is performing 'inching' operation on the wheel; if one of the red lamps does not flash or is normally on, the brake system breaks down and needs to be checked and maintained.

When the speed of the vehicle is reduced to about 5Km/h, mercury in the mercury switch with the front height of 8 ︒ loses inertia and naturally returns under the influence of gravity, the positive power supply of the electronic controller is interrupted, the red indicator light is enabled not to flicker, the brake system exits from the brake control system, and the vehicle is enabled to recover the conventional braking.

After the vehicle is stopped, the 'rain and snow switch' needs to be turned off, and the green indicating lamp is turned off. The vehicle's "rain and snow switch" and "indicator light" stop working. Normal operation is resumed.

The wheel speed sensor comprises a gear disc and a magnetic head; the gear disc is formed by forming a plurality of rectangular holes on the periphery of the brake disc; (this is the prior art, and the technical solution has not been effectively improved, and will not be described repeatedly here). The magnetic head consists of a horseshoe-shaped permanent magnet and a coil, two magnetic poles of an N pole and an S pole of the permanent magnet are opposite to the rectangular hole of the gear disc, and the distance is less than or equal to 0.5 mm; and one end of a coil on the magnetic head is grounded, and the other end of the coil is connected with an electronic controller.

The wheel speed sensor is arranged on the wheel, and when the wheel rolls fast, a coil on the magnetic head generates direct current; when the wheel rolls slowly or stops rotating, the coil on the magnetic head does not generate electricity; the coil becomes the conducting wire of the electronic controller grounding and provides the negative current for the electronic controller.

Enabling the wheel speed sensor to form a negative power switch of the electronic controller; when the electronic controller obtains the positive and negative power supplies at the same time, a command is sent to the brake regulator to adjust the hydraulic pressure of the brake caliper, so that the brake caliper performs 'inching' braking on the brake disc.

When the brake system is installed on an automobile, the brake system needs to be installed in cooperation with a wheel speed sensor. When the brake system is installed on a motorcycle or an electric vehicle, a negative power supply of an electronic controller is directly grounded to replace a magnetic head of a wheel speed sensor.

As shown in fig. 4-7, the pulse frequency rectangular square wave generation module in the electronic controller is a pulse frequency rectangular square wave generation module with a model number of NE 555; two variable resistors in the NE555 pulse frequency rectangular square wave generation module are replaced by two fixed resistors. A field effect tube in the electronic controller is provided with a radiating fin for radiating the field effect tube; the radiating fins and the field effect tube are bonded and pressed by silicone grease.

The NE555 pulse frequency rectangular square wave generating module is provided with a hydraulic brake pulse mode and a drum brake pulse mode; the pulse frequency of the hydraulic braking pulse mode is 4-5 times/second, the square wave proportion is 6:4, the braking time is 60%, and the relaxation time is 40%; the pulse frequency of the drum brake pulse mode is 2-3 times/second, the square wave ratio is 5:5, the braking time is 50%, and the relaxation time is 50%.

The electronic controller is provided with: the front disc and rear disc type electronic controller, the front disc and rear drum type electronic controller, the front drum and rear drum type electronic controller and the single front wheel electronic controller.

As shown in fig. 4, the front-disk and rear-disk electronic controller comprises a housing, wherein the housing is a rectangular box body, the length of the box body is 8.5cm, the width of the box body is 6cm, and the height of the box body is 4 cm. Two pulse frequency rectangular square wave generating modules of NE555 are arranged in the shell, and the two pulse frequency rectangular square wave generating modules of NE555 are respectively connected with the front wheels and the rear wheels of the vehicle; the two pulse frequency rectangular square wave generation modules of the NE555 are connected with the deceleration sensor through a resistor R1.

The mercury switch with the front height of 15 ︒, the mercury switch with the front height of 8 ︒, the resistor R2 and the indicator lamp are arranged in the deceleration sensor; the positive pole of the 12V power supply, the resistor R2 and the indicator light are connected; the field effect tube IRFP460 module is arranged on the radiating fin S; the field effect tube IRFP460 module, the brake regulator cathode corona and the indicator light are connected; the NE555 pulse module is connected with the wheel speed sensor and the field effect transistor IRFP460 module.

The electronic controller for the front disc and the rear disc of the vehicle is a disc type hydraulic brake, the hydraulic pulse frequency is used, the front wheel and the rear wheel are respectively provided with a wheel speed sensor, a deceleration sensor and a hydraulic brake adjuster assembly are shared, and the braking force of the front wheel brake and the braking force of the rear wheel brake are respectively controlled.

The two pulse frequency rectangular square wave generation modules of the NE555 in the shell both adopt a hydraulic braking pulse mode, the pulse frequency of the hydraulic braking pulse mode is 4-5 times/second, the square wave ratio is 6:4, the braking time is 60%, and the relaxation time is 40%.

As shown in fig. 5, the front disc and rear drum electronic controller comprises a housing, the housing is a rectangular box body, the length of the box body is 8.5cm, the width of the box body is 6cm, and the height of the box body is 4 cm. Two pulse frequency rectangular square wave generating modules of NE555 are arranged in the shell, and the two pulse frequency rectangular square wave generating modules of NE555 are respectively connected with the front wheels and the rear wheels of the vehicle; the two pulse frequency rectangular square wave generation modules of the NE555 are connected with the deceleration sensor through a resistor R1.

The front disc and the rear drum are electrically controlled, and the front wheel of the vehicle is a disc type hydraulic brake which uses a hydraulic brake adjuster; the front wheel is provided with a wheel speed sensor, the electronic controller adopts a hydraulic braking pulse mode, the pulse frequency of the hydraulic braking pulse mode is 4-5 times/second, the square wave ratio is 6:4, the braking time is 60%, and the relaxation time is 40%.

The rear wheel is a drum brake, and a drum brake pull-wire type brake force regulator or a pull rod type brake force regulator is used; the rear wheel has no wheel speed sensor, the electronic controller adopts a drum brake pulse mode, the pulse frequency of the drum brake pulse mode is 2-3 times/second, the square wave ratio is 5:5, the braking time is 50%, and the relaxation time is 50%.

As shown in fig. 6, the front drum and rear drum electronic controller comprises a housing, wherein the housing is a rectangular box body, the length of the box body is 8.5cm, the width of the box body is 6cm, and the height of the box body is 4 cm. Two pulse frequency rectangular square wave generating modules of NE555 are arranged in the shell, and the two pulse frequency rectangular square wave generating modules of NE555 are respectively connected with the front wheels and the rear wheels of the vehicle; the pulse frequency rectangular square wave generation modules of the two NE555 are connected with the deceleration sensor through a resistor R1.

And the front drum and the rear drum are electronic controllers, the front wheel and the rear wheel of the vehicle are drum brakes, a drum brake pulse mode is used, the front wheel and the rear wheel are not provided with wheel speed sensors, and the negative power supplies of the two NE555 pulse frequency rectangular square wave generation modules are directly grounded. The front wheel uses a pull-wire type brake adjuster, and the rear wheel uses a pull-wire type adjuster or a pull-rod type adjuster.

Then, two pulse frequency rectangular square wave generating modules of NE555 in the shell both adopt a drum brake pulse mode, the pulse frequency of the drum brake pulse mode is 2-3 times/second, the square wave ratio is 5:5, the braking time is 50%, and the relaxation time is 50%.

As shown in fig. 7, the single front wheel electronic controller comprises a housing, the housing is a rectangular box body, the length of the box body is 6cm, the width of the box body is 4cm, and the height of the box body is 4 cm. The shell is internally provided with an NE555 pulse frequency rectangular square wave generating module, and the NE555 pulse frequency rectangular square wave generating module is connected with the front wheels of the vehicle; the pulse frequency rectangular square wave generating module of the NE555 is connected with the mercury switch with the front height of 10 ︒ through a resistor R1.

Two ends of the mercury switch with the front height of 10 ︒ are respectively connected with the anode of a 12V power supply and a resistor R1; the three ends of the pulse frequency rectangular square wave generation module of the NE555 are connected with a resistor R1, a field effect tube IRFP460 module and the cathode of a 12V power supply; the negative electrode of the 2V power supply is connected with the negative electrode of the brake regulator; the field effect transistor IRFP460 module is arranged on the heat radiating fin S.

The single front wheel electronic controller only installs the anti-locking brake system on the front wheel of the vehicle, and does not install the anti-locking brake system on the rear wheel; the front wheel uses hydraulic or stay wire formula regulator, and pulse frequency is unchangeable, does not have the fast sensor of wheel, and single front wheel installs ABS additional, and the key protection front wheel is not locked by the stopper.

The pulse frequency rectangular square wave generation module of the NE555 in the shell adopts a hydraulic braking pulse mode, the pulse frequency of the hydraulic braking pulse mode is 4-5 times/second, the square wave ratio is 6:4, the braking time is 60%, and the relaxation time is 40%.

In normal use, when a driver turns on a key switch, if the red indicating lamps are simultaneously turned on for about 4 seconds, all the parts have no fault; if one red indicator light is not on, the part corresponding to the red indicator light breaks down and needs to be maintained in time.

When the brake anti-blocking system works, each red indicator lamp can display according to the frequency of turning on and off, if a certain red indicator lamp displays in a non-frequency mode and is in a non-on or normally-on state, a part corresponding to the red indicator lamp breaks down, and needs to be maintained in time.

When the vehicle is braked, whether the vehicle is normally braked or emergently braked is judged through the wheel speed sensor, when the vehicle is normally braked, the electronic controller cannot be started, and when the vehicle is emergently braked, mercury in the mercury switch moves forwards, a circuit is connected, and the electronic controller is started.

The electronic controller commands an execution part of the ABS, namely a braking force pressure regulating valve to work according to signals provided by the speed reduction sensor and the wheel speed sensor, and regulates the braking force of the brake so that the brake performs a working state of 'braking-releasing-braking' reciprocating motion.

Claims

1. An electronic controller of an inertial type braking anti-lock braking system comprises a deceleration sensor and an electronic controller which are arranged on a vehicle body, a wheel speed sensor arranged on a wheel, and a braking force adjuster connected with a braking switch, wherein the output end of the braking force adjuster is hydraulically connected with a braking caliper; the method is characterized in that:

2. An electronic controller for an inertial braking anti-lock braking system, according to claim 1, wherein: the two mercury switches with different angles comprise a mercury switch with a front height of 15 ︒ and a mercury switch with a front height of 8 ︒, and the two mercury switches are obliquely and parallelly fixed in the same shell; the mercury switch with the front height of 15 ︒ is used for braking on a high-adhesion road surface, and the mercury switch with the front height of 8 ︒ is used for braking on a low-adhesion road surface; and detecting the deceleration change condition of the vehicle in braking.

3. An electronic controller for an inertial braking anti-lock braking system, according to claim 2, wherein: the lower parts of the mercury switch with the front height of 15 ︒ and the mercury switch with the front height of 8 ︒ are respectively connected in parallel through a lead, and the two mercury switches after being connected in parallel are connected with the positive power supply of the hand brake switch; meanwhile, the two mercury switches which are connected in parallel are connected with a K3 terminal in the rain and snow switch through a 200 ohm resistor; the upper lead of the mercury switch with the front height of 15 ︒ is connected with a 50-ohm resistor in series and then is connected with an anode power supply of an electronic controller, and the anode power supply is connected into a pulse frequency rectangular square wave generation module; the pulse frequency rectangular square wave generation module can be protected from being broken down by large current.

4. An electronic controller for an inertial braking anti-lock braking system, according to claim 1, wherein: the rain and snow switch comprises a double-pole switch and an indicator light; the first knife switch in the double-knife switch is provided with two binding posts K1 and K2, and the binding posts K1 and K2 are respectively connected with a mercury switch with the front height of 15 ︒ and a mercury switch with the front height of 8 ︒; the second knife switch in the double-knife switch is provided with two terminals K3 and K4, terminal K3 is connected with electronic controller, and terminal K4 is connected with the pilot lamp.

5. An electronic controller for an inertial braking anti-lock braking system, according to claim 4, wherein: the indicator light comprises light emitting diodes D1 and D2; the wiring terminal K4 is connected with the anodes of the light emitting diodes D1 and D2, and the cathode of the light emitting diode D1 is connected with the wheel speed sensor and grounded; the cathode of the light emitting diode D2 is connected with the drain electrode of a field effect tube in the electronic controller; led D1 is a green led, led D2 is a red led; in the electronic controller, each field effect tube is provided with a red light emitting diode.

6. An electronic controller for an inertial braking anti-lock braking system, according to claim 1, wherein: the wheel speed sensor comprises a gear disc and a magnetic head; the gear disc is formed by forming a plurality of rectangular holes on the periphery of the brake disc; the magnetic head consists of a horseshoe-shaped permanent magnet and a coil, two magnetic poles of an N pole and an S pole of the permanent magnet are opposite to the rectangular hole of the gear disc, and the distance is less than or equal to 0.5 mm; and one end of a coil on the magnetic head is grounded, and the other end of the coil is connected with an electronic controller.

7. An electronic controller for an inertial braking anti-lock braking system, according to claim 6, wherein: the wheel speed sensor is arranged on the wheel, and when the wheel rolls fast, a coil on the magnetic head generates direct current; when the wheel rolls slowly or stops rotating, the coil on the magnetic head does not generate electricity; the coil becomes the conducting wire of the electronic controller grounding and provides the negative current for the electronic controller.

8. An electronic controller for an inertial braking anti-lock braking system, according to claim 1, wherein: the pulse frequency rectangular square wave generation module in the electronic controller adopts a pulse frequency rectangular square wave generation module with the model number of NE 555; two variable resistors in the NE555 pulse frequency rectangular square wave generation module are replaced by two fixed resistors.

9. An electronic controller for an inertial braking anti-lock braking system, according to claim 8, wherein: the NE555 pulse frequency rectangular square wave generating module is provided with a hydraulic brake pulse mode and a drum brake pulse mode;

10. An electronic controller for an inertial braking anti-lock braking system, according to claim 1, wherein: a field effect tube in the electronic controller is provided with a radiating fin for radiating the field effect tube; the radiating fins and the field effect tube are bonded and pressed by silicone grease.