CN110370939A - Motor vehicle braking system - Google Patents
Motor vehicle braking system Download PDFInfo
- Publication number
- CN110370939A CN110370939A CN201810947633.1A CN201810947633A CN110370939A CN 110370939 A CN110370939 A CN 110370939A CN 201810947633 A CN201810947633 A CN 201810947633A CN 110370939 A CN110370939 A CN 110370939A
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- China
- Prior art keywords
- switch device
- output end
- input terminal
- power supply
- supply circuit
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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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
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a kind of motor vehicle braking systems, are related to electronic technology field.One specific embodiment of the system includes: anticollision device, is connected with the input terminal of first switch device, sends brake signal for detecting that there are the power on/off states for changing the input terminal when target in preset range, and to control device；Control device is connected with the input terminal of second switch device, for changing the power on/off state of second switch device input after receiving the brake signal；Execution circuit comprising concatenated first switch device output end and second switch device output end in normally off, for powering off whole wheel power supply circuits when first switch device output end, and/or second switch device output end disconnect.The embodiment can be realized the double brake based on " anticollision device --- switching device " and " anticollision device --- control device --- switching device " and control, to promote vehicle braking reliability.
Description
Technical field
The present invention relates to electronic technology field more particularly to a kind of motor vehicle braking systems.
Background technique
Autonomous vehicle refers to that passenger can be helped completely or in certain vehicles for driving links and not needing human driver
Or article reaches another location from a position.Autonomous vehicle can be run by entirely autonomous mode, also may rely on
The initial input of passenger or lasting input operation.Due to the special nature of autonomous vehicle, need to pay special attention to its security performance ratio
Such as braking ability.In existing autonomous vehicle, unidirectionally controlled mode of braking is generally used, i.e., when braking is required, by each
Class electric-controlled switch cuts off current supply circuit.Since controlling mechanism is single, the reliability of this mode of braking is to be improved.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of motor vehicle braking system, can be realized based on " anticollision device --- open
The double brake control of pass device " and " anticollision device --- control device --- switching device ", so that promoting vehicle braking can
By property.
To achieve the above object, a kind of motor vehicle braking system is provided.
The motor vehicle braking system of the embodiment of the present invention may be disposed at including anticollision device and the control for controlling wheel traveling
The vehicle of device processed, it may include: anticollision device is connected with the input terminal of first switch device, for detecting default model
Enclose it is interior there are the power on/off states for changing the input terminal when target, and to control device send brake signal；Control dress
It sets, is connected with the input terminal of second switch device, for changing second switch device after receiving the brake signal
The power on/off state of input terminal；Execution circuit comprising concatenated first switch device output end in normally off
And second switch device output end, for being disconnected in first switch device output end, and/or second switch device output end
When, power off whole wheel power supply circuits.
Optionally, the power on/off state for changing the input terminal includes: to power off first switch device input；Change
The power on/off state for becoming second switch device input includes: to power off second switch device input.
Optionally, the execution circuit includes k+1 branch in parallel；Wherein, k is the quantity of wheel power supply circuit；?
In one branch, first switch device output end, second switch device output end and the series connection of third switching device input terminal；?
In any branch except the branch, the input terminal string of an output end of third switching device and an automatic switch device
Connection；Wherein, any automatic switch device is not first switch device, second switch device or third switching device；For packet
Include any two branches of automatic switch device input terminal comprising automatic switch device input terminal it is different comprising the
The output end of three switching devices is different；One output end of each automatic switch device accesses a wheel power supply circuit；It is right
In any wheel power supply circuit, an automatic switch device output end is only included；For any two wheel power supply circuit,
Including automatic switch device output end correspond to different automatic switch devices；Each wheel power supply circuit is wheel driving
Device power supply.
Optionally, each third switching device output end in execution circuit is in normally off, wheel power supply circuit
In each automatic switch device output end be in normally off.
Optionally, the execution circuit can further comprise: the signal feedback branch with the k+1 branch circuit parallel connection；Its
In, signal feedback branch includes the third switching device output end in normally off, for exporting in the third switching device
Feedback signal is sent to control device when end disconnects.
Optionally, the system can further comprise brake indicator lamp, detect preset range memory in anticollision device
It is powered in target.
Optionally, anticollision device can be further used for: when detecting that the target in preset range is left, make first switch
The input terminal of device is powered, and sends to control device and restore signal；Control device is further used for: receiving the recovery letter
After number, the input terminal of second switch device is made to be powered；Execution circuit is further used for: in first switch device output end and
When two switching device output ends are closed, whole wheel power supply circuits is made to be powered.
Optionally, control device includes programmable logic controller (PLC) PLC or micro-control unit MCU；First switch device,
Two switching devices and third switching device are relay, and the input terminal of relay is coil, and output end is contact；Automatic switch
Device is contactor, and the input terminal of contactor is coil, and output end is contact；Wheel driver is motor；The vehicle
For autonomous vehicle.
According to the technique and scheme of the present invention, one embodiment in foregoing invention have the following advantages that or the utility model has the advantages that
First, two kinds of controlling mechanisms of design are controlled with the double brake for realizing vehicle.One is triggered by anticollision device
Corresponding switching device realizes the power-off of wheel power supply circuit；Another kind is to send brake signal from anticollision device to control device,
Control device triggers respective switch device according to brake signal and realizes the power-off of wheel power supply circuit.Any one of two kinds of mechanism
The power-off of wheel power supply circuit can be achieved when effect, to improve vehicle braking performances and security performance.
Second, anticollision device is detecting that there are target Shi Huixiang control devices to send brake signal in preset range, this
Control device is set to can be appreciated that target position information after controlling each wheel and advancing.In addition, after executing above-mentioned braking process,
Execution circuit can send feedback information to control device, so that control device be made to understand brake-application situation.It is set by both
It sets, the control device of vehicle can be made further to grasp the various information in vehicle driving, provide foundation for its subsequent action.
Further effect possessed by above-mentioned non-usual optional way adds hereinafter in conjunction with specific embodiment
With explanation.
Detailed description of the invention
Attached drawing for a better understanding of the present invention, does not constitute an undue limitation on the present invention.Wherein:
Fig. 1 is the component part schematic diagram of middle motor vehicle braking system according to embodiments of the present invention；
Fig. 2 is the execution circuit schematic illustration of middle motor vehicle braking system according to embodiments of the present invention；
Fig. 3 is the wheel power supply circuit schematic illustration of middle motor vehicle braking system according to embodiments of the present invention；
Fig. 4 is the brake control scheme schematic diagram of middle motor vehicle braking system according to embodiments of the present invention.
Specific embodiment
Below in conjunction with attached drawing, an exemplary embodiment of the present invention will be described, including the various of the embodiment of the present invention
Details should think them only exemplary to help understanding.Therefore, those of ordinary skill in the art should recognize
It arrives, it can be with various changes and modifications are made to the embodiments described herein, without departing from scope and spirit of the present invention.Together
Sample, for clarity and conciseness, descriptions of well-known functions and structures are omitted from the following description.
The motor vehicle braking system of the embodiment of the present invention can be used for the vehicle or autonomous vehicle manipulated completely by human driver.
It is noted that autonomous vehicle can be run completely without human driver, the first of human driver also may rely on
Begin to input or lasting input is run.In addition, for the vehicle manipulated by human driver, if it is provided with automatic Pilot mould
Formula, then the vehicle in automatic driving mode also needs to be regarded as autonomous vehicle.
It should be noted that, although certain aspects of the invention combine certain types of vehicle to be particularly useful, however, this hair
The vehicle of bright embodiment can be any kind of vehicle, including but not limited to: automobile, truck, motorcycle, bus, ship,
Aircraft, helicopter, grass mower, recreational vehicle, amusement park vehicle, farm equipment, construction equipment, electric car, golf cart, fire
Vehicle, fork truck and trolley.The vehicle of the embodiment of the present invention can have one or more computers, such as comprising processor,
The computer of memory and the other components being typically found in general purpose computer.
The addressable information of memory storage processor, including the instruction and data that can be executed or be used by processor.
Memory can be any kind of computer-readable medium for capableing of the addressable information of storage processor, such as hard drive
Device, memory card, read only memory ROM, random access storage device RAM or CD.Instruction can be by processor directly (such as
Machine code) or indirectly (such as script) execute any instruction set.For example, instruction can be used as computer code and be stored in meter
On calculation machine readable medium.
Instruction and data can be retrieved by processor, stored or be modified.For example, data can be stored in computer deposit
It is stored in relational database in device, as the table with multiple and different fields and record, is stored in extensible markup language
It says in XML document or flat file, data can also be formatted with any computer-readable format.As further showing
Example, image data can be stored as the bitmap being made of pixel grid, according to compression or uncompressed, lossless or damage, base
It is stored in the format of bitmap or vector and the computer instruction for graphing.Data may include being enough to identify correlation
Any information of information such as numbers, describes text, proprietary code, to being stored in the other regions of same memory or difference is deposited
The reference of data or function use the information that calculates related data in reservoir.
Processor can be any conventional processors, such as commercial central processor CPU.As an alternative, processor can be
Special equipment, the processor of such as various hardware.It will be apparent to a skilled person that processor, memory and other
Component can not actually be stored in same physical enclosure.In various aspects as described herein, processor can be located at remote
Place and and vehicle wireless communication from vehicle.
Computer can also include electronic console, user input equipment (such as mouse, keyboard, touch screen, and/or wheat
Gram wind) and state and hope for acquiring people various sensors (such as video camera).
As one more preferably embodiment, the vehicle of the embodiment of the present invention anticollision device can be set, for detecting
There are being reminded when target in preset range, to prevent target by vehicle crash or touching, anticollision device, which can be, to be adopted
With the automatic collision-prevention device of the various detection media such as radar, laser, sonar.In addition, the vehicle of the embodiment of the present invention can also be arranged
Control device, controlled by controlling the wheel driver (such as motor) of each driving wheel the traveling of each wheel with
Turning, control device can based on programmable logic controller (PLC) PLC, micro-control unit MCU, on-site programmable gate array FPGA,
All kinds of applicable devices with control function such as complex programmable logic device (CPLD) are realized.
It will be described in detail technical solution of the present invention below.It should be pointed out that in the absence of conflict, it is of the invention
Technical characteristic in embodiment and embodiment can be combined with each other.
It is appreciated that term " first " used in the present invention, " second " etc. are used to describe various elements herein, but
These elements are not limited by above-mentioned term.Above-mentioned term is only used for distinguishing an element and another element.For example, exist
Without departing from the present invention, first switch device can be known as to second switch device, it can also be by second switch
Device is known as first switch device, and first switch device and second switch device are all switching devices, but the two is not same opens
Close device.
Fig. 1 is the component part schematic diagram of middle motor vehicle braking system according to embodiments of the present invention.
As shown in Figure 1, the motor vehicle braking system of the embodiment of the present invention includes anticollision device 101, control device 102, first
Switching device input terminal 103, second switch device input 104 and execution circuit 105.
Wherein, first switch device and second switch device can be various electric-controlled switch, such as relay, contactor.
Preferably, electric current relay easy to use, that contact is more can be used in the two.Correspondingly, first switch device input 103
It can be the coil of electric current relay with second switch device input 104.As knowledge well known in the art, above-mentioned coil energy
Sense the size of input point electric current and enough with the movement of this control output end (i.e. the normally opened contact or normally-closed contact of relay), from
And connection or segment circuit.
In embodiments of the present invention, the anticollision device 101 of vehicle is connected with first switch device input 103, for changing
Become its power on/off state.In concrete application, above-mentioned connection type is usually: a signal input part of anticollision device 101 with
One pin of first switch device input 103 connects, another pin ground connection of first switch device input 103.Change
Flexible power off state refers to: first switch device input 103 is changed into off-position, Huo Zheyou by energized state
Off-position changes into energized state, i.e., powers off when first switch device input 103 is powered, and inputs in first switch device
It is powered when 103 power-off of end.It is appreciated that aforesaid operations can be such that the normally opened contact of first switch device is closed, make first switch
The normally-closed contact of device disconnects.As a preferred embodiment, when normal vehicle operation, first switch device input 103 is in
Energized state；Detect that (i.e. the targets such as barrier, people enter preset safe model there are target in preset range in anticollision device
Enclose) when, first switch device input 103 is powered off, executes deliberate action to trigger corresponding contacts.
Control device 102 is connected with second switch device input 104, can change second switch device input
104 power on/off state.Specifically, above-mentioned connection type may is that a control terminal of control device 102 is opened with second
Close the pin connection of device input 104, another pin ground connection of second switch device input 104.Preferably,
In the embodiment of the present invention, when normal vehicle operation, control device 102 can send enabled letter to second switch device input 104
Number, so that second switch device input 104 is powered；When needing to brake, the enable signal is can be cut off in control device 102, to make
Second switch device input 104 powers off.
In fact, control device 102 is that the signal sent according to anticollision device 101 executes above-mentioned braking maneuver.Specifically
Ground, anticollision device 101 is detecting in preset range there are when target, same powering off first switch device input 103
When, brake signal is sent to control system 102.After control system 102 receives brake signal, second switch device is inputted
104 power-off of end.By above-mentioned setting, control device can be made to understand target and enter preset range, so that control device 102 be made to grasp
Effective information in vehicle travel process.
Fig. 2 is the execution circuit schematic illustration of middle motor vehicle braking system according to embodiments of the present invention.In Fig. 2, with work
Make the group for the scene display execution circuit that voltage is DC24V (i.e. 24 volts of direct current, DC24V+ indicate 24 volts of direct current of level)
At with principle.It is appreciated that this does not constitute any restrictions to the operative scenario of execution circuit of the present invention.In Fig. 2, with
KA11-b indicates first switch device output end, indicates second switch device output end with KA2-b.
From Figure 2 it can be seen that the execution circuit of the embodiment of the present invention include concatenated first switch device output end KA11-b and
Second switch device output end KA2-b, the two are used for: when system needs to brake, powering off whole wheel power supply circuits.Tool
In body application, first switch device output end KA11-b and second switch device output end KA2-b can be the normally closed of relay
Contact is closed both in normal vehicle operation；In the power-off of corresponding input terminal, the two is disconnected to realize braking effect
Fruit.Particularly, since first switch device output end KA11-b and second switch device output end KA2-b connects, in the two
Any one, which is disconnected, can lead to the power-off of wheel power supply circuit.
In embodiments of the present invention, following execution circuit can be designed specifically to realize above-mentioned " powering off wheel power supply circuit "
Technical effect.Specifically, execution circuit includes that (k is the quantity of wheel power supply circuit to k+1 branch in parallel, is positive
Integer；In Fig. 2 2) k is.In a branch (branch of the leftmost side in Fig. 2), first switch device output end KA11-b, second
Switching device output end KA2-b and third switching device input terminal KA1-a series connection；Any branch (Fig. 2 except the branch
Branch where middle KA1-b1, KA1-b2) in, the input terminal of an output end of third switching device and an automatic switch device
Series connection.
Wherein, third switching device KA1 is preferably electric current relay, its input terminal is indicated in Fig. 2 with KA1-a, with KA1-
B1, KA1-b2, KA1-b3 indicate three of them output end.Automatic switch device is directly used in connection or segmentation wheel power supply circuit,
It is preferably D.C. contactor, indicates two different automatic switch devices in Fig. 2 with KM1 and KM2, indicates KM1's with KM1-a
Input terminal (such as contactor coil) indicates the input terminal (such as contactor coil) of KM2 with KM2-a.It can be seen that executing electricity
Each of road third switching device output end KA1-b1, KA1-b2, KA1-b3 are in normally off, and (i.e. three is normally closed
Contact).
In execution circuit and wheel power supply circuit, there are following constraint conditions:
1. any automatic switch device KM1, KM2 are not first switch device KA11, second switch device KA2 or third
Switching device KA1.Each automatic switch device, first switch device, second switch device, third switch i.e. in execution circuit
Device is different components.
2. for include automatic switch device input terminal any two branches comprising automatic switch device input terminal
It is different comprising third switching device output end it is different.Branch i.e. for each including being automatically switched device input terminal,
It includes the automatic switch device input terminal of difference (not sharing with other branches) (due to each automatic switch device
Have an input terminal, this indicates the corresponding different automatic switch device of each branch) and difference (i.e. not with other
Road share) third switching device output end.
3. an output end (such as contacts of contactor) of each automatic switch device accesses a wheel power supply circuit,
Each wheel power supply circuit is a wheel driver (such as motor) power supply.Fig. 3 is middle vehicle according to embodiments of the present invention
The wheel power supply circuit schematic illustration of braking system.In fig. 3 it is shown that two wheels that can provide 48 volt direct currents supply
Circuit, KM1-b are the output end for being automatically switched device KM1, and KM2-b is the output end for being automatically switched device KM2, and U1 is by 24
Volt DC voltage is converted to the Switching Power Supply of 96 volt DC voltages, and F1, F2 are fuse.In the usage scenario of Fig. 3, electricity
Ordinary mail number forms a wheel power supply circuit through being directly a wheel driver power supply after KM1-b；Level signal warp
It directly powers after KM2-b for another wheel driver, forms another wheel power supply circuit.
4. only including an automatic switch device output end for any wheel power supply circuit；For any two vehicle
Take turns power supply circuit comprising automatic switch device output end corresponding to different automatic switch devices.This indicates each wheel
Power supply circuit includes the automatic switch device output end of a difference (not sharing with other wheel power supply circuits).It can see
It arrives, each automatic switch device output end KM1-b, KM2-b in wheel power supply circuit are in normally off (as normally closed touching
Point).
As a preferred embodiment, execution circuit further comprises feeding back branch with the signal of above-mentioned k+1 branch circuit parallel connection
Road.Specifically, signal feedback branch includes the third switching device output end KA1-b3 in normally off, in the third
Feedback signal I101 is sent to control device when switching device output end KA1-b3 is disconnected.Pass through above-mentioned setting, control device energy
Whether third switching device disconnects in solution braking process much of that, to grasp brake-application situation.
It should be noted that the concrete composition and structure above with respect to execution circuit and wheel power supply circuit are not reality
Using necessary.In fact, execution circuit and wheel power supply circuit can use and be totally different from Fig. 2, structure shown in Fig. 3
Be achieved, if its can using first switch device output end and second switch device output end to wheel power supply circuit into
Row is connected or disjunction.It, can be by first switch device output end, second with execution circuit as an example, in concrete application
Switching device output end and the series connection of applicable contactor coil, and multiple normally-closed contacts of the contactor are accessed into each wheel and are supplied
Circuit can also realize similar effect.
The workflow of the motor vehicle braking system of the embodiment of the present invention is introduced below with reference to Fig. 2 and Fig. 3.
In normal vehicle operation, anticollision device does not detect that target enters preset range, makes first switch device
Input terminal remains powered on state.Due to being not received by brake signal, control device makes second switch device input keep logical
Electricity condition.In this way, the first switch device output end KA11-b, second switch device output end KA2-b in execution circuit are protected
Holding closure, third switching device input terminal KA1-a remains powered on state, third switching device output end KA1-b1, KA1-b2,
KA1-b3 is closed, and input terminal KM1-a, KM2-a of each automatic switching device remain powered on state, accesses each wheel power supply
Output end KM1-b, KM2-b of circuit are closed, each wheel driver normal power supply, so that normal vehicle operation.
Fig. 4 is the brake control scheme schematic diagram of middle motor vehicle braking system according to embodiments of the present invention.As shown in figure 4, needing
When braking, motor vehicle braking system executes following steps:
Step S401: normal vehicle operation.
Step S402: anticollision device detects that target enters preset range.
Step S403: anticollision device powers off first switch device input.Meanwhile anticollision device also executes following two
Step.
Step S404: anticollision device sends brake signal to control device.
Step S405: anticollision device triggers brake indicator lamp and is powered.
Step S406: first switch device input powers off the first switch device output end so that in execution circuit
KA11-b is disconnected.
Step S407: control device powers off second switch device input.
Step S408: second switch device input powers off the second switch device output end KA2- so that in execution circuit
B is disconnected.
Step S409: first switch device output end KA11-b and second switch device output end KA2-b disconnect so that with
The concatenated third switching device input terminal KA1-a power-off of the two.
Each output end KA1-b1 of step S410: third switching device input terminal KA1-a power-off triggering third switching device,
KA1-b2, KA1-b3 (i.e. each normally-closed contact) are disconnected.
Step S411: third switching device each output end KA1-b1, KA1-b2 are disconnected so that connected in series each open automatically
Close device input KM1-a, KM2-a (i.e. coil) power-off.
Step S412: automatic switch device input terminal KM1-a, KM2-a power-off triggers automatic in each wheel power supply circuit
Switching device output end KM1-b, KM2-b (i.e. normally-closed contact) are disconnected.
Step S413: automatic switch device output end KM1-b, KM2-b in each wheel power supply circuit are disconnected so that all
Wheel power supply circuit power-off, to realize vehicle braking effect.
Later, anticollision device makes first switch device input Power resumption when detecting that target leaves preset range,
It is sent simultaneously to control device and restores signal.It receives after restoring signal, control device keeps second switch device input extensive
Multiple energized state.In this way, first switch device output end KA11-b, second switch device output end KA2-b in execution circuit
It remains closed, so that third switching device input terminal KA1-a Power resumption state, this triggering each output end of third switching device
KA1-b1, KA1-b2, KA1-b3 closure, thus make each input terminal KM1-a, KM2-a Power resumption shape of each automatic switching device
State, output end KM1-b, the KM2-b for accessing each wheel power supply circuit restore to be closed, so that each wheel driver be made to restore
Power supply, so that vehicle starts running.
In the technical solution of the embodiment of the present invention, two kinds of controlling mechanisms are designed to realize the double brake control of vehicle.
One is trigger corresponding switching device by anticollision device to realize the power-off of wheel power supply circuit；Another kind be from anticollision device to
Control device sends brake signal, and control device triggers respective switch device according to brake signal and realizes that wheel power supply circuit is disconnected
Electricity.Any one of two kinds of mechanism act on when can be achieved wheel power supply circuit power-off, thus improve vehicle braking performances and
Security performance.In addition, cost is relatively low for motor vehicle braking system provided by the invention, there is high value of practical.
Above-mentioned specific embodiment, does not constitute a limitation on the scope of protection of the present invention.Those skilled in the art should be bright
It is white, design requirement and other factors are depended on, various modifications, combination, sub-portfolio and substitution can occur.It is any
Made modifications, equivalent substitutions and improvements etc. within the spirit and principles in the present invention, should be included in the scope of the present invention
Within.
Claims (8)
1. a kind of motor vehicle braking system, it is set to including anticollision device and the vehicle of the control device for controlling wheel traveling；
It is characterized in that, the system comprises:
Anticollision device is connected with the input terminal of first switch device, for detecting that there are change when target in preset range
Become the power on/off state of the input terminal, and sends brake signal to control device；
Control device is connected with the input terminal of second switch device, for changing after receiving the brake signal
The power on/off state of two switching device input terminals；And
Execution circuit comprising concatenated first switch device output end and second switch device in normally off is defeated
Outlet, for making whole wheels power when first switch device output end, and/or second switch device output end disconnect
Down circuitry.
2. system according to claim 1, which is characterized in that
The power on/off state for changing the input terminal includes: to power off first switch device input；
The power on/off state for changing second switch device input includes: to power off second switch device input.
3. system according to claim 1, which is characterized in that the execution circuit includes k+1 branch in parallel；Its
In, k is the quantity of wheel power supply circuit；And
In a branch, first switch device output end, second switch device output end and third switching device input terminal
Series connection；
In any branch except the branch, the input of an output end of third switching device and an automatic switch device
End series connection；Wherein,
Any automatic switch device is not first switch device, second switch device or third switching device；For including certainly
Any two branches of dynamic switching device input terminal comprising automatic switch device input terminal it is different comprising third open
The output end for closing device is different；One output end of each automatic switch device accesses a wheel power supply circuit；For appointing
One wheel power supply circuit only includes an automatic switch device output end；For any two wheel power supply circuit comprising
Automatic switch device output end correspond to different automatic switch devices；Each wheel power supply circuit is a wheel driver
Power supply.
4. system according to claim 3, which is characterized in that each third switching device output end in execution circuit is equal
In normally off, each automatic switch device output end in wheel power supply circuit is in normally off.
5. system according to claim 3, which is characterized in that the execution circuit further comprises: with the k+1 item branch
The signal feedback branch of road parallel connection；Wherein,
Signal feedback branch includes the third switching device output end in normally off, for exporting in the third switching device
Feedback signal is sent to control device when end disconnects.
6. system according to claim 3, which is characterized in that the system further comprises brake indicator lamp, anti-
Crash device detects that there are energizations when target in preset range.
7. system according to claim 3, which is characterized in that
Anticollision device is further used for: when detecting that the target in preset range is left, making the input terminal of first switch device
It is powered, and is sent to control device and restore signal；
Control device is further used for: after receiving the recovery signal, the input terminal of second switch device being made to be powered；And
Execution circuit is further used for: when first switch device output end and second switch device output end are closed, making whole
Wheel power supply circuit be powered.
8. according to any system of claim 3-7, which is characterized in that
Control device includes programmable logic controller (PLC) PLC or micro-control unit MCU；
First switch device, second switch device and third switching device are relay, and the input terminal of relay is coil, defeated
Outlet is contact；
Automatic switch device is contactor, and the input terminal of contactor is coil, and output end is contact；
Wheel driver is motor；
The vehicle is autonomous vehicle.
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| CN201810947633.1A CN110370939B (en) | 2018-08-20 | 2018-08-20 | Vehicle brake system |
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| CN201810947633.1A CN110370939B (en) | 2018-08-20 | 2018-08-20 | Vehicle brake system |
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| CN110370939B CN110370939B (en) | 2022-02-01 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5389824A (en) * | 1992-03-17 | 1995-02-14 | Kabushiki Kaisha Equos Research | Power supply cut off apparatus |
| CN101596901A (en) * | 2009-07-08 | 2009-12-09 | 奇瑞汽车股份有限公司 | A kind of safety monitoring system of electronlmobil and method for supervising thereof |
| CN202480896U (en) * | 2012-01-13 | 2012-10-10 | 浙江吉利汽车研究院有限公司 | Safety redundancy device for automobile power battery system |
| CN203496695U (en) * | 2013-08-29 | 2014-03-26 | 海马商务汽车有限公司 | Automobile power supply control device and system |
| CN104760509A (en) * | 2014-01-07 | 2015-07-08 | 株式会社捷太格特 | Vehicle control device |
| CN104859453A (en) * | 2014-09-17 | 2015-08-26 | 北汽福田汽车股份有限公司 | High-voltage safety protection method and circuit of electric vehicle as well as corresponding electric vehicle |
| CN104884294A (en) * | 2012-12-21 | 2015-09-02 | 丰田自动车株式会社 | Vehicle having power control unit |
| CN106004454A (en) * | 2016-07-01 | 2016-10-12 | 广州汽车集团股份有限公司 | Safety control method and device of electric vehicle |
| CN107499141A (en) * | 2017-09-20 | 2017-12-22 | 中国重汽集团济南动力有限公司 | A kind of multiaxis Direct wheel drives distributed high-pressure system used for electric vehicle |
-
2018
- 2018-08-20 CN CN201810947633.1A patent/CN110370939B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5389824A (en) * | 1992-03-17 | 1995-02-14 | Kabushiki Kaisha Equos Research | Power supply cut off apparatus |
| CN101596901A (en) * | 2009-07-08 | 2009-12-09 | 奇瑞汽车股份有限公司 | A kind of safety monitoring system of electronlmobil and method for supervising thereof |
| CN202480896U (en) * | 2012-01-13 | 2012-10-10 | 浙江吉利汽车研究院有限公司 | Safety redundancy device for automobile power battery system |
| CN104884294A (en) * | 2012-12-21 | 2015-09-02 | 丰田自动车株式会社 | Vehicle having power control unit |
| CN203496695U (en) * | 2013-08-29 | 2014-03-26 | 海马商务汽车有限公司 | Automobile power supply control device and system |
| CN104760509A (en) * | 2014-01-07 | 2015-07-08 | 株式会社捷太格特 | Vehicle control device |
| CN104859453A (en) * | 2014-09-17 | 2015-08-26 | 北汽福田汽车股份有限公司 | High-voltage safety protection method and circuit of electric vehicle as well as corresponding electric vehicle |
| CN106004454A (en) * | 2016-07-01 | 2016-10-12 | 广州汽车集团股份有限公司 | Safety control method and device of electric vehicle |
| CN107499141A (en) * | 2017-09-20 | 2017-12-22 | 中国重汽集团济南动力有限公司 | A kind of multiaxis Direct wheel drives distributed high-pressure system used for electric vehicle |
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| CN110370939B (en) | 2022-02-01 |
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