CN110936943A - Electronic control brake system of commercial vehicle - Google Patents
Electronic control brake system of commercial vehicle Download PDFInfo
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- CN110936943A CN110936943A CN201911106634.4A CN201911106634A CN110936943A CN 110936943 A CN110936943 A CN 110936943A CN 201911106634 A CN201911106634 A CN 201911106634A CN 110936943 A CN110936943 A CN 110936943A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/26—Compressed-air systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
Abstract
The invention discloses an electric control brake system of a commercial vehicle, which comprises: the device comprises an electric control unit, an electric control brake master valve, a wheel speed sensor, a gear ring, a front axle single-channel module and a rear axle single-channel module; the front axle single-channel module comprises a front axle single-channel EBS valve and two front axle ABS electromagnetic valves; the rear axle single-channel module comprises a rear axle single-channel EBS valve and two rear axle ABS electromagnetic valves; the gear ring and the wheel speed sensor are used for being installed on automobile wheels to detect the wheel speed of each wheel, the electric control unit is respectively electrically connected with the electric control brake master valve, the front axle single-channel EBS valve, the front axle ABS electromagnetic valve and the rear axle single-channel EBS valve, the wheel speed sensor of the front axle is electrically connected with the front axle single-channel EBS valve, the wheel speed sensor of the rear axle is electrically connected with the rear axle single-channel EBS valve, and the rear axle ABS electromagnetic valve is electrically connected with the rear axle single-channel EBS valve. When the single-channel EBS valve of the rear axle fails, the system can also ensure the normal use of the ABS function, reduce the cost and improve the utilization rate of the layout space of the vehicle chassis valve body.
Description
Technical Field
The invention relates to the technical field of automobile braking, in particular to an electric control braking system of a commercial vehicle.
Background
With the rapid development of the automobile industry and the continuous construction of highways, the driving safety of automobiles is particularly emphasized by countries in the world, especially the requirements on the technical performance of automobile braking systems are higher and higher, and the active safety technology of automobiles is more and more emphasized by people. As an important part for guaranteeing the safety of the vehicle, the technical innovation of the automobile brake system has an extremely important influence on the improvement of the safety and the comfort of the vehicle. With the continuous progress of electronic control and integrated control, active safety systems of vehicles are also newly developed. The traditional mechanical system can not meet the requirement of modern automobiles on safety, various electric control systems for improving the active safety of automobiles become the research focus of automobile enterprises, and the automobile electric control systems are entering a rapid development period.
With the improvement of the consumption level of people, new requirements are put forward on the driving experience and safety of vehicles, such as unmanned driving and vehicle networking; the new EBS system can replace the traditional mechanical system, meet the unmanned driving requirement, stably carry out the deceleration control of the vehicle on the original ABS system and improve the comfort; meanwhile, the electric control system can expand various functions, such as braking force distribution, ESC, braking assistance function and the like, and infinite possibilities are provided for optimization of the braking system.
The conventional EBS scheme in the current foreign market is mainly as shown in fig. 1, when a driver actuates a pedal, an electronically controlled brake master valve transmits an obtained pedal stroke signal to an ECU (electronic control unit) to identify a braking requirement of a vehicle, and simultaneously, a wheel speed signal is obtained from a speed sensor, the ECU processes the received signal, calculates according to a corresponding control strategy, outputs a certain index pressure value, and controls a front axle and a rear axle to perform braking by controlling an ABS solenoid valve and an EBS valve. In the EBS scheme of fig. 1, the front axle of the vehicle employs a single-channel EBS valve 101 with a single pressure sensor, and the single-channel EBS valve 101 can only simultaneously regulate the pressure of the left and right brake chambers; the vehicle rear axle adopts a double-channel EBS valve 102, two pressure sensors are contained in the double-channel EBS valve 102, the pressures of the brake chambers on the left side and the right side can be independently adjusted, the internal structure design of a valve body of the double-channel EBS valve 102 is complex, and higher valve body process level is required; in addition, the integration level of the rear axle valve body is high, once the interior of the dual-channel EBS valve 102 fails, the pressure regulation function of the rear axle is quitted, the ABS function of the system cannot be intervened at the moment, and the vehicle basically has no ABS function, which is fatal to the safe running of the commercial vehicle.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the purposes of the invention is to provide an electric control brake system of a commercial vehicle, which adopts a single-channel EBS valve and two ABS electromagnetic valves to replace the prior rear axle double-channel EBS valve body, namely, a front axle and a rear axle are symmetrically processed, so that the normal use of the ABS function can be ensured when the rear axle single-channel EBS valve fails, meanwhile, the scheme can reduce the cost, improve the utilization rate of the arrangement space of a vehicle chassis valve body and has practical economic benefits for the batch production of the EBS system.
One of the purposes of the invention is realized by adopting the following technical scheme:
an electrically controlled brake system for a commercial vehicle, comprising: the device comprises an electric control unit, an electric control brake master valve, a wheel speed sensor, a gear ring, a front axle single-channel module and a rear axle single-channel module; the front axle single-channel module comprises a front axle single-channel EBS valve and two front axle ABS electromagnetic valves, the front axle single-channel EBS valve is respectively connected with the front axle ABS electromagnetic valves through pipelines, the pipeline connected with the front left brake air chamber is provided with one front axle ABS electromagnetic valve, and the pipeline connected with the front right brake air chamber is provided with one front axle ABS electromagnetic valve; the rear axle single-channel module comprises a rear axle single-channel EBS valve and two rear axle ABS electromagnetic valves, the rear axle single-channel EBS valve is respectively connected with the rear axle ABS electromagnetic valves through pipelines, one rear axle ABS electromagnetic valve is arranged on the pipeline connected with the rear left brake air chamber, and one rear axle ABS electromagnetic valve is arranged on the pipeline connected with the rear right brake air chamber; the electric control brake master valve is respectively connected with the front axle single-channel EBS valve and the rear axle single-channel EBS valve through pipelines;
the ring gear with the fast sensor of wheel is used for installing the fast of wheel in order to detect each wheel on auto wheel, automatically controlled unit respectively with automatically controlled braking main valve the front axle single channel EBS valve the front axle ABS solenoid valve reaches the rear axle single channel EBS valve electricity is connected, and the front axle wheel corresponds fast sensor of wheel with the front axle single channel EBS valve electricity is connected, and the rear axle wheel corresponds fast sensor of wheel with the rear axle single channel EBS valve electricity is connected, the rear axle ABS solenoid valve with the rear axle single channel EBS valve electricity is connected.
Further, still include automatically controlled trailer valve, control gladhand and function gladhand, automatically controlled trailer valve with the electrical unit electricity is connected, automatically controlled trailer valve respectively through the pipeline with control gladhand with function gladhand is connected.
The air storage cylinder comprises a first air storage cylinder, a second air storage cylinder and a third air storage cylinder, the air compressor is connected to the air handler through a pipeline, and the air handler is respectively connected to the first air storage cylinder, the second air storage cylinder and the third air storage cylinder through pipelines; the first air cylinder is respectively connected to the electric control trailer valve, the hand valve and the parking relay valve through pipelines, the hand valve is respectively connected to the electric control trailer valve and the parking relay valve through pipelines, and the parking relay valve is connected to a rear axle brake air chamber through a pipeline; the second air reservoir is connected to a first loop air inlet of the electric control brake main valve and a first loop air inlet of the rear axle single-channel EBS valve through pipelines respectively, the third air reservoir is connected to a second loop air inlet of the electric control brake main valve and a first loop air inlet of the front axle single-channel EBS valve through pipelines respectively, a first loop air outlet of the electric control brake main valve is connected to a second loop air inlet of the rear axle single-channel EBS valve through pipelines, and a second loop air outlet of the electric control brake main valve is connected to a second loop air inlet of the front axle single-channel EBS valve and the electric control trailer valve through pipelines respectively.
Further, still include the wear sensor, the wear sensor sets up on the stopper that each wheel corresponds, the wear sensor that the front axle wheel corresponds with front axle single channel EBS valve electricity is connected, the wear sensor that the rear axle wheel corresponds with rear axle single channel EBS valve electricity is connected.
Furthermore, the front axle single-channel EBS valve and the rear axle single-channel EBS valve adopt integrated relay valves, and an air outlet of each integrated relay valve is provided with a pressure sensor.
Compared with the prior art, the invention has the beneficial effects that:
this automatically controlled braking system of commercial car adopts single channel EBS valve and two ABS solenoid valves to replace current rear axle binary channels EBS valve body, is about to front axle and rear axle and does the symmetry processing, so, can guarantee when rear axle single channel EBS valve became invalid, can also guarantee the normal use of ABS function, and this scheme can reduce cost simultaneously, promotes the utilization ratio in vehicle chassis valve body arrangement space, has practical economic benefits to EBS system batch production.
Drawings
FIG. 1 is a schematic structural diagram of an electric control brake system of a conventional commercial vehicle;
FIG. 2 is a schematic structural diagram of an electric control brake system of a commercial vehicle provided by the invention.
In the figure: 101. a single channel EBS valve; 102. a dual-channel EBS valve; 201. an electronic control unit; 202. an electrically controlled master brake valve; 203. a wheel speed sensor; 204. a front axle single channel EBS valve; 205. a front axle ABS solenoid valve; 206. a front left brake chamber; 207. a front right brake chamber; 208. a rear axle single channel EBS valve; 209. a rear axle ABS electromagnetic valve; 210. a rear left brake chamber; 211. a rear right brake chamber; 212. an electrically controlled trailer valve; 213. controlling the gladhand; 214. a functional gladhand; 215. an air compressor; 216. an air handler; 217. an air cylinder; 218. a hand valve; 219. and (4) parking the relay valve.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Please refer to fig. 2, which is a schematic structural diagram of an electric control brake system of a commercial vehicle according to the present invention, including: the system comprises an electric control unit 201, an electric control brake master valve 202, a wheel speed sensor 203, a gear ring, a front axle single-channel module and a rear axle single-channel module; the front axle single-channel module comprises a front axle single-channel EBS valve 204 and two front axle ABS electromagnetic valves 205, the front axle single-channel EBS valve 204 is respectively connected with the front axle ABS electromagnetic valves 205 through pipelines, the pipeline connected with the front left brake air chamber 206 is provided with one front axle ABS electromagnetic valve 205, and the pipeline connected with the front right brake air chamber 207 is provided with one front axle ABS electromagnetic valve 205; the rear axle single-channel module comprises a rear axle single-channel EBS valve 208 and two rear axle ABS electromagnetic valves 209, the rear axle single-channel EBS valve 208 is respectively connected with the rear axle ABS electromagnetic valves 209 through pipelines, the pipeline connected with the rear left brake air chamber 210 is provided with one rear axle ABS electromagnetic valve 209, and the pipeline connected with the rear right brake air chamber 211 is provided with one rear axle ABS electromagnetic valve 209; the electric control brake master valve 202 is respectively connected with the front axle single-channel EBS valve 204 and the rear axle single-channel EBS valve 208 through pipelines;
the ring gear with wheel speed sensor 203 is used for installing the fast of the wheel in order to detect each wheel on the auto wheel, automatically controlled unit 201 respectively with automatically controlled brake master valve 202, front axle single channel EBS valve 204 front axle ABS solenoid valve 205 reaches rear axle single channel EBS valve 208 electricity is connected, the front axle wheel corresponds wheel speed sensor 203 with front axle single channel EBS valve 204 electricity is connected, the rear axle wheel corresponds wheel speed sensor 203 with rear axle single channel EBS valve 208 electricity is connected, rear axle ABS solenoid valve 209 with rear axle single channel EBS valve 208 electricity is connected.
This automatically controlled braking system of commercial car adopts single channel EBS valve and two ABS solenoid valves to replace current rear axle binary channels EBS valve body, is about to front axle and rear axle and does the symmetry processing, so, can guarantee when rear axle single channel EBS valve 208 became invalid, can also guarantee the normal use of ABS function, and this scheme can reduce cost simultaneously promotes the utilization ratio in vehicle chassis valve body arrangement space, has practical economic benefits to EBS system batch production.
With the commercial vehicle electric control brake system, when a driver actuates a brake pedal, an electric control unit 201(ECU) obtains a pedal depth signal according to an electric control brake master valve 202 so as to identify a brake requirement; meanwhile, a wheel speed signal is obtained from the wheel speed sensor 203, the ECU processes the received signal, then carries out calculation according to a corresponding control strategy, outputs a certain index pressure value, and drives a valve core in the front and rear axle single-channel EBS valve 208 to supply pressure to an ABS electromagnetic valve or a brake air chamber through an MOS tube circuit, so that the front and rear axles perform braking. Braking is implemented through electronic control, so that the braking response time is shortened, and the braking distance is shorter; the fixed pedal stroke corresponds to the relative expected deceleration, the actual deceleration of the vehicle body is calculated according to different road surface states, the pressure is adjusted by the front single-channel EBS valve and the rear single-channel EBS valve in a closed loop mode to enable the vehicle to approach the expected deceleration as far as possible, so that the vehicle obtains the corresponding actual deceleration, the difference value of the actual deceleration is balanced by the bridge control module, and the braking comfort is improved.
For the ABS and ASR functions, the ECU controls the braking force of front left and front right wheels of the front axle through an ABS electromagnetic valve according to wheel speed information detected by a wheel gear ring of the front axle and a wheel speed sensor 203, so as to prevent the wheels of the front axle from being locked; through the wheel speed information to rear axle wheel ring gear and wheel speed sensor 203 detection, control rear axle wheel braking force, prevent that the rear axle wheel from locking or skidding, guarantee that whole car avoids the wheel to lock when the braking, sideslip, get rid of the tail even and folding when especially when the braking of wet and slippery road surface.
In addition, the ECU can optimize the braking force under different load conditions according to the acquired pressure of the brake air chamber, improve the braking stability of the vehicle and optimize the braking distance for comfort; the same pedal travel with the same deceleration optimizes pedal feel to compensate for braking effects caused by brake fade, load changes, etc. And in case of emergency, the brake is rapidly output, so that accidents are reduced, and the running safety of the vehicle is improved. On the basis of the EBS system, the ESC function can be directly expanded without any mechanical modification, and the rollover safety coefficient of the vehicle is improved.
In a preferred embodiment, the system further comprises an electronic control trailer valve 212, a control trailer joint 213 and a function trailer joint 214, wherein the electronic control trailer valve 212 is electrically connected with the electronic control unit 201, and the electronic control trailer valve 212 is respectively connected with the control trailer joint 213 and the function trailer joint 214 through pipelines. The braking of the trailer is controlled by the electrically controlled trailer valve 212, so that the trailer can achieve the same braking effect as the main vehicle when the main vehicle brakes.
As a preferred embodiment, the air storage cylinder 217 comprises a first air storage cylinder, a second air storage cylinder and a third air storage cylinder, the air compressor 215 is connected to the air processor 216 through a pipeline, the air processor 216 is connected to the first air storage cylinder, the second air storage cylinder and the third air storage cylinder through pipelines respectively; the first air reservoir is respectively connected to the electrically controlled trailer valve 212, the hand valve 218 and the parking relay valve 219 through pipelines, the hand valve 218 is respectively connected to the electrically controlled trailer valve 212 and the parking relay valve 219 through pipelines, and the parking relay valve 219 is connected to a rear axle brake air chamber through a pipeline; the second air reservoir is connected to a first loop air inlet of the electric control brake main valve 202 and a first loop air inlet of the rear axle single-channel EBS valve 208 through pipelines respectively, the third air reservoir is connected to a second loop air inlet of the electric control brake main valve 202 and a first loop air inlet of the front axle single-channel EBS valve 204 through pipelines respectively, a first loop air outlet of the electric control brake main valve 202 is connected to a second loop air inlet of the rear axle single-channel EBS valve 208 through pipelines, and a second loop air outlet of the electric control brake main valve 202 is connected to a second loop air inlet of the front axle single-channel EBS valve 204 and the electric control trailer valve 212 through pipelines respectively.
Through the structure, the commercial vehicle electric control brake system provided by the invention has double-loop electric control and double-loop pneumatic control, and when a brake pedal is actuated and the electric control fails, the pneumatic control double-loop system can ensure the braking required by the vehicle. In addition, when one path of the double-loop pneumatic control fails, the electric control double loop still functions, and high safety of the brake system is further ensured. In addition, because commercial car braking system is air brake system, gaseous compressibility makes the system have very obvious delay and hysteresis, and the EBS system can compensate this kind of defect of conventional braking, through judging driver's braking demand, through system self calculation and compensation, automatic control braking shortens braking response time to shorten braking distance, promote braking security and travelling comfort. Meanwhile, compared with the prior art, the problems that parts of the whole vehicle are scattered, the whole vehicle is difficult to arrange and the like are solved, the whole vehicle is simple to arrange, the system is modularized, and the economical efficiency and the development prospect are better.
In a preferred embodiment, the brake device further comprises a wear sensor (not shown), the wear sensor is disposed on a brake (i.e., a brake pad) corresponding to each wheel, the wear sensor corresponding to the front axle wheel is electrically connected to the front axle single-channel EBS valve 204, and the wear sensor corresponding to the rear axle wheel is electrically connected to the rear axle single-channel EBS valve 208. The wear sensors collect the wear state information of the corresponding brake pads and feed the wear state information back to the corresponding single-channel EBS valves, and the single-channel EBS valves send the wear state information of the brake pads to the ECU. The front axle single-channel EBS valve 204 and the rear axle single-channel EBS valve 208 adopt integrated relay valves and are provided with an electric control module, and a pressure sensor is arranged at an air outlet of the integrated relay valves.
The commercial vehicle electric control brake system has the following advantages:
1. the defect of conventional braking delay is overcome, the braking response time is shortened, and the braking distance is shortened.
2. The main hanging is consistent: the synchronization of the main tractor and the trailer is realized by controlling the output pressure of the EBS trailer control valve.
3. Meanwhile, the double-loop pneumatic control system and the double-loop electric control system are provided, and when the pneumatic control fails, the electric control double-loop system can ensure the braking required by the vehicle. In addition, when the electric control fails, the conventional air holes are switched, and high safety of the brake system is further ensured.
4. And when the EBS valve fails, the normal function of the ABS is ensured.
5. External braking request: CAN receive an external CAN command to control the service braking to decelerate stably, and CAN be applied to unmanned vehicles.
6. The brake force anti-superposition function: service life of the brake chamber can be prolonged by reasonably utilizing service braking and parking braking.
7. The brake assist function: in some critical situations, when the EBS system pre-determines that emergency braking is required according to the pedal depression rate of the driver, the corresponding actuating element is controlled to output increased braking pressure for braking.
8. Deceleration control: the same pedal travel with the same deceleration optimizes pedal feel to compensate for braking effects caused by brake fade, load changes, etc.
9. Braking force distribution: under the conditions of full load, no load or uneven load, the axle load difference of the vehicle is very large, and the required braking force difference is very large. The EBS can calculate and adjust the braking force of each wheel according to the load size and distribution, and prevent the front and rear axles from being separated.
Interpretation of terms:
EBS: the Electronic control brake System EBS is called an Electronic Braking System, is developed on the basis of an anti-lock brake System and is mainly used for improving the brake performance of a commercial vehicle. The active safety device has the advantages of short brake response time, shorter brake distance compared with ABS (anti-lock brake system), and capability of covering all functions of the ABS.
ABS: the ABS is called Anti-lock Brake System, and is an active safety device for automobile with the advantages of preventing wheels from locking, shortening the braking distance of the automobile, reducing the abrasion of tires, preventing the automobile from deviating and drifting, and the like.
Electronic Control Unit (ECU): an Electronic Control Unit (ECU) is called an Electronic Control Unit, and is a core controller of the EBS system. The Electronic Control Unit (ECU) is used for calculating, processing and judging the information input by the sensor according to the programs and data stored in the ECU, and then outputting instructions, and the EBS valve and the ABS electromagnetic valve provide certain control information. The Electronic Control Unit (ECU) is composed of a microcomputer, an input circuit, an output circuit, a control circuit and the like.
ASR: the anti-skid function is driven.
ESC: an electronic body stabilization system.
Single-channel EBS valve: the integrated relay valve has an electric control function, and the air outlet is provided with a pressure sensor.
Two-channel EBS valve: the integrated relay valve has an electric control function, and the air outlets are respectively provided with a pressure sensor.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (5)
1. An electrically controlled brake system for a commercial vehicle, comprising: the device comprises an electric control unit, an electric control brake master valve, a wheel speed sensor, a gear ring, a front axle single-channel module and a rear axle single-channel module; the front axle single-channel module comprises a front axle single-channel EBS valve and two front axle ABS electromagnetic valves, the front axle single-channel EBS valve is respectively connected with the front axle ABS electromagnetic valves through pipelines, the pipeline connected with the front left brake air chamber is provided with one front axle ABS electromagnetic valve, and the pipeline connected with the front right brake air chamber is provided with one front axle ABS electromagnetic valve; the rear axle single-channel module comprises a rear axle single-channel EBS valve and two rear axle ABS electromagnetic valves, the rear axle single-channel EBS valve is respectively connected with the rear axle ABS electromagnetic valves through pipelines, one rear axle ABS electromagnetic valve is arranged on the pipeline connected with the rear left brake air chamber, and one rear axle ABS electromagnetic valve is arranged on the pipeline connected with the rear right brake air chamber; the electric control brake master valve is respectively connected with the front axle single-channel EBS valve and the rear axle single-channel EBS valve through pipelines;
the ring gear with the fast sensor of wheel is used for installing the fast of wheel in order to detect each wheel on auto wheel, automatically controlled unit respectively with automatically controlled braking main valve the front axle single channel EBS valve the front axle ABS solenoid valve reaches the rear axle single channel EBS valve electricity is connected, and the front axle wheel corresponds fast sensor of wheel with the front axle single channel EBS valve electricity is connected, and the rear axle wheel corresponds fast sensor of wheel with the rear axle single channel EBS valve electricity is connected, the rear axle ABS solenoid valve with the rear axle single channel EBS valve electricity is connected.
2. An electrically controlled brake system for a commercial vehicle according to claim 1, further comprising an electrically controlled trailer valve, a control trailer and a functional trailer, said electrically controlled trailer valve being electrically connected to said electronic control unit, said electrically controlled trailer valve being connected to said control trailer and said functional trailer respectively by a conduit.
3. An electrically controlled brake system for a commercial vehicle according to claim 2, further comprising an air compressor, an air handler, an air reservoir, a hand valve and a parking relay valve, said air reservoir comprising a first air reservoir, a second air reservoir and a third air reservoir, said air compressor being connected to said air handler by a pipeline, said air handler being connected to said first air reservoir, said second air reservoir and said third air reservoir by a pipeline, respectively; the first air cylinder is respectively connected to the electric control trailer valve, the hand valve and the parking relay valve through pipelines, the hand valve is respectively connected to the electric control trailer valve and the parking relay valve through pipelines, and the parking relay valve is connected to a rear axle brake air chamber through a pipeline; the second air reservoir is connected to a first loop air inlet of the electric control brake main valve and a first loop air inlet of the rear axle single-channel EBS valve through pipelines respectively, the third air reservoir is connected to a second loop air inlet of the electric control brake main valve and a first loop air inlet of the front axle single-channel EBS valve through pipelines respectively, a first loop air outlet of the electric control brake main valve is connected to a second loop air inlet of the rear axle single-channel EBS valve through pipelines, and a second loop air outlet of the electric control brake main valve is connected to a second loop air inlet of the front axle single-channel EBS valve and the electric control trailer valve through pipelines respectively.
4. An electrically controlled brake system for commercial vehicle according to claim 1, further comprising a wear sensor disposed on the brake corresponding to each wheel, wherein the wear sensor corresponding to the front axle wheel is electrically connected to the front axle single channel EBS valve, and the wear sensor corresponding to the rear axle wheel is electrically connected to the rear axle single channel EBS valve.
5. An electrically controlled brake system for commercial vehicles according to claim 1, wherein said front axle single-channel EBS valve and said rear axle single-channel EBS valve are integrated relay valves, and an outlet of said integrated relay valves is provided with a pressure sensor.
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| CN201911106634.4A CN110936943A (en) | 2019-11-13 | 2019-11-13 | Electronic control brake system of commercial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911106634.4A CN110936943A (en) | 2019-11-13 | 2019-11-13 | Electronic control brake system of commercial vehicle |
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| CN110936943A true CN110936943A (en) | 2020-03-31 |
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| CN201911106634.4A Pending CN110936943A (en) | 2019-11-13 | 2019-11-13 | Electronic control brake system of commercial vehicle |
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| CN112977374A (en) * | 2021-02-26 | 2021-06-18 | 徐工集团工程机械股份有限公司科技分公司 | Pilot type engineering machinery anti-lock brake system and engineering machinery |
| CN113386727A (en) * | 2021-07-20 | 2021-09-14 | 中国重汽集团济南动力有限公司 | Isobaric air feeder of automobile air brake EBS bridge module |
| CN114043972A (en) * | 2021-11-30 | 2022-02-15 | 广州瑞立科密汽车电子股份有限公司 | Control system and control method for pedal-like brake-by-wire of commercial vehicle |
| CN114194161A (en) * | 2021-12-24 | 2022-03-18 | 北汽重型汽车有限公司 | Electric control braking system suitable for medium-weight truck |
| CN114248740A (en) * | 2020-09-21 | 2022-03-29 | 财团法人工业技术研究院 | Heavy vehicle brake control device and method thereof |
| CN115214582A (en) * | 2022-08-08 | 2022-10-21 | 一汽解放汽车有限公司 | Redundant electronic control brake system and vehicle |
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2019
- 2019-11-13 CN CN201911106634.4A patent/CN110936943A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114248740A (en) * | 2020-09-21 | 2022-03-29 | 财团法人工业技术研究院 | Heavy vehicle brake control device and method thereof |
| CN112977374A (en) * | 2021-02-26 | 2021-06-18 | 徐工集团工程机械股份有限公司科技分公司 | Pilot type engineering machinery anti-lock brake system and engineering machinery |
| CN113386727A (en) * | 2021-07-20 | 2021-09-14 | 中国重汽集团济南动力有限公司 | Isobaric air feeder of automobile air brake EBS bridge module |
| CN114043972A (en) * | 2021-11-30 | 2022-02-15 | 广州瑞立科密汽车电子股份有限公司 | Control system and control method for pedal-like brake-by-wire of commercial vehicle |
| CN114194161A (en) * | 2021-12-24 | 2022-03-18 | 北汽重型汽车有限公司 | Electric control braking system suitable for medium-weight truck |
| CN115214582A (en) * | 2022-08-08 | 2022-10-21 | 一汽解放汽车有限公司 | Redundant electronic control brake system and vehicle |
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