CN109515408A - A kind of braking system and braking method of electric car - Google Patents
A kind of braking system and braking method of electric car Download PDFInfo
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- CN109515408A CN109515408A CN201811229331.7A CN201811229331A CN109515408A CN 109515408 A CN109515408 A CN 109515408A CN 201811229331 A CN201811229331 A CN 201811229331A CN 109515408 A CN109515408 A CN 109515408A
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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
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/22—Matching criteria, e.g. proximity measures
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Abstract
Embodiment of the present invention discloses the braking system and braking method of a kind of electric car.Braking system includes: first distance sensor, it is arranged in front panel and detection direction is towards floor, for when detecting the first object in the first detection range, the first trigger signal comprising position quantity of first object in first detection range is generated, and sends first trigger signal to entire car controller；Entire car controller, for generating braking moment output order based on the position quantity when detecting electric car power on signal and receiving first trigger signal；Brake, for exporting braking moment based on the braking moment output order.Embodiment of the present invention proposes a kind of braking schemes of electric car, and brake operating can be realized without really trampling, and due to having no practical pedal, can also solve the technical issues of obscuring with accelerator pedal.
Description
Technical field
Embodiment of the present invention is related to automobile technical field, in particular to a kind of braking system of electric car and braking side
Method.
Background technique
Have in national newest standards " term and definition of automobile and trailer type " (GB/T 3730.1-2001) to automobile
Such as give a definition: by power drive, the vehicle of the non-track carrying with 4 or 4 or more wheels is mainly used for: carrying personnel
And (or) cargo；Draw the vehicle of carrying personnel and (or) cargo；Specific use.Energy shortage, oil crisis and environmental pollution
It grows in intensity, brings tremendous influence to people's lives, be directly related to the sustainable development of national economy and society.The world is each
State is all in active development new energy technology.
The brake pedal of automobile brakes, and brake has a small pedal to be connected with brake lever above, so also known as this is stepped on
Plate is brake pedal.Automobile brake pedal operation can be divided into slowly braking (i.e. foresight braking), emergency braking, Associated brake
It is braked with intermittence.Under normal circumstances, it slowly brakes and before wheel lock up and parking, clutch will be stepped on when emergency braking
Plate is stepped on earth, to keep engine not flame-out and to be conducive to speed of remapping.
However, the foot of driver stiff can ache during frequently trampling brake pedal, tired wound is carried out to human body
Evil.
In addition, brake pedal is possible to tread in accelerator pedal mistake, especially there is multiple major motor vehicle in fresh driver
Accident and injury.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of braking system of electric car and braking methods, thus simultaneously
Reduce fatigue strength and accident risk problem.
The technical solution of embodiment of the present invention is as follows:
A kind of braking system of electric car, comprising:
First distance sensor, is arranged in front panel and detection direction is towards floor, for when in the first detection range
When inside detecting the first object, the first triggering comprising position quantity of first object in first detection range is generated
Signal, and first trigger signal is sent to entire car controller；
Entire car controller, for when detecting electric car power on signal and receiving first trigger signal, base
Braking moment output order is generated in the position quantity；
Brake, for exporting braking moment based on the braking moment output order.
In one embodiment, further comprise:
First camera is arranged in front panel and images direction towards floor, for obtaining the bat of first object
Take the photograph image；
First identification module is stored with scheduled foot type template, for by the shooting image and the foot type template into
Row matching, and when matching unsuccessful, close the first distance sensor；When successful match, start the first distance
Sensor.
In one embodiment, the first distance sensor includes:
Generator is arranged in front panel, for emitting detection harness；
Receiver is arranged on floor, for receiving detection harness.
In one embodiment, the first distance sensor is capacitive approach switch.
In one embodiment, further includes:
Second distance sensor, is arranged in front-row seats lower part and detection direction is towards floor, for when in the second detection
When detecting the second object in range, the second trigger signal is generated, and send second trigger signal to entire car controller；
Entire car controller, for giving birth to when detecting that automobile is in driving status and receives second trigger signal
At braking instruction；
The wherein brake, for being based on the braking instruction with electronic vapour described in maximum braking moment forced brake
Vehicle.
In one embodiment, further comprise:
Second camera, is arranged in front-row seats lower part and detection direction is towards floor, for obtaining second object
Second shooting image；
Second identification module is stored with scheduled foot type template, for shooting image and the foot type mould for described second
Plate is matched, and when matching unsuccessful, closes the second distance sensor；When successful match, starting described second
Range sensor.
A kind of braking method of electric car, comprising:
When being arranged in front panel and the first distance sensor on detection direction towards floor is examined in the first detection range
When measuring the first object, the first triggering letter comprising position quantity of first object in first detection range is generated
Number, and first trigger signal is sent to entire car controller；
When entire car controller detects electric car power on signal and receives first trigger signal, based on described
Position quantity generates braking moment output order；
Brake is based on the braking moment output order and exports braking moment.
In one embodiment, further includes:
It is arranged in front panel and the first camera for imaging direction towards floor obtains the shooting figure of first object
Picture；
The first identification module of scheduled foot type template is stored with to carry out the shooting image and the foot type template
Match, when matching unsuccessful, closes the first distance sensor, when successful match, start the first distance sensor.
In one embodiment, this method further include:
When be arranged in front-row seats lower part and detection direction towards floor second distance sensor in the second detection range
When inside detecting the second object, the second trigger signal is generated, and send second trigger signal to entire car controller；
When entire car controller detects that automobile is in driving status and receives second trigger signal, braking is generated
Instruction；
The brake is based on the braking instruction with electric car described in maximum braking moment forced brake.
In one embodiment, this method further comprises:
It is arranged in front-row seats lower part and the second camera on detection direction towards floor obtains the of second object
Two shooting images；
Be stored with the second identification module of scheduled foot type template by the second shooting image and the foot type template into
Row matching, and when matching unsuccessful, close the second distance sensor；When successful match, start the second distance
Sensor.
It can be seen from the above technical proposal that in embodiment of the present invention, first distance sensor is arranged in front panel
And detection direction is towards floor, includes described first pair for generating when detecting the first object in the first detection range
The first triggering letter is sent as the first trigger signal of the position quantity in first detection range, and to entire car controller
Number；Entire car controller, it is described for being based on when detecting electric car power on signal and receiving first trigger signal
Position quantity generates braking moment output order；Brake, for exporting braking moment based on the braking moment output order.Cause
This, embodiment of the present invention proposes a kind of braking systems of electric car, and brake operating can be realized without really trampling, can be with
Reduce fatigue strength.
In addition, the technical issues of obscuring with accelerator pedal can also be solved due to having no practical pedal.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.
Fig. 1 is the demonstrative structure figure of the braking system of embodiment of the present invention electric car.
Fig. 2 is the exemplary arrangements schematic diagram of embodiment of the present invention first distance sensor.
Fig. 3 is the exemplary arrangements schematic diagram of embodiment of the present invention second distance sensor.
Fig. 4 is the exemplary flow chart of the braking method of electric car of the present invention.
Specific embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, the Detailed description of the invention present invention is now compareed
Specific embodiment, identical label indicates identical part in the various figures.
It is succinct and intuitive in order to what is described, hereafter by describing several representative embodiments come to side of the invention
Case is illustrated.A large amount of details is only used for helping to understand the solution of the present invention in embodiment.However, it will be apparent that of the invention
Technical solution can be not limited to these details when realizing.In order to avoid unnecessarily having obscured the solution of the present invention, Yi Xieshi
It applies mode not described meticulously, but only gives frame.Hereinafter, " comprising " refers to " including but not limited to ", " root
According to ... " refer to " according at least to ..., but be not limited to according only to ... ".Due to the speech habits of Chinese, hereinafter without spy
When not pointing out the quantity of an ingredient, it is meant that the ingredient is either one or more, or can be regarded as at least one.
In view of the defect that brake pedal in the prior art is easy to cause driver fatigue and obscures with accelerator pedal, originally
Invention embodiment proposes a kind of braking system of electric car, and brake operating can be realized without really trampling, and due to
Practical pedal is had no, the technical issues of obscuring with accelerator pedal can also be solved.
Fig. 1 is the demonstrative structure figure of the braking system of electric car of the present invention.
As shown in Figure 1, the system includes:
First distance sensor 101, is arranged in front panel and detection direction is towards floor, for when in the first detection model
When detecting the first object in enclosing, the first trigger signal comprising position quantity of first object in the first detection range is generated,
And the first trigger signal is sent to entire car controller 102；
Entire car controller 102, for when detecting electric car power on signal and receiving first trigger signal,
Braking moment output order is generated based on the position quantity；
Brake 103, for exporting braking moment based on braking moment output order.
First distance sensor 101 is arranged in front panel, and the first detection range includes the foot scope of activities of driver.
As it can be seen that the application is without brake pedal, but pass through the first distance sensor with the first detection range
The 101 detection operations for being directed to the first object generate the first trigger signal, wherein the first trigger signal includes the first object first
Position quantity in detection range.
First distance sensor 101 can be determined at a distance from the first object by time-of-flight method (flying time).
For example, first distance sensor 101 emit light pulse and measure this light pulse from be emitted to by the first object reflection return when
Between, the distance between first object is calculated by time interval using as position quantity.
According to the difference of its working principle, first distance sensor 101 can be divided into optical distance sensor, infrared distance passes
Sensor, ultrasonic distance sensor etc. are a variety of.Wherein, when first distance sensor 101 detects that the first object (preferably drives
The foot of member) when, the first trigger signal is generated according to position quantity of first object in the first detection range.
Entire car controller 102 is based on position when detecting electric car power on signal and receiving the first trigger signal
Amount generates braking moment output order.Brake 103 is based on braking moment output order and exports braking moment.Preferably, in place
In the effective aperture for the amount of setting, the corresponding braking moment of braking moment output order and position quantity are in monotonic increase relationship.
After embodiment of the present invention, driver within the detection range of first distance sensor 101 by moving
Dynamic foot can export the different braking torque for corresponding to different foot shift positions to enable brake 103.Due to without really stepping on
It steps on and brake operating can be realized, degree of fatigue can be significantly reduced in driver.Moreover, because having no actual brake pedal, also
It can solve the technical issues of obscuring with brake pedal.
The false triggering of first distance sensor 101 leads to undesirable braking maneuver in order to prevent, in an embodiment
In, further comprise:
First camera 104 is arranged in front panel and images direction towards floor, for obtaining the shooting of the first object
Image；
First identification module 105 is stored with scheduled foot type template, for that will shoot image and the progress of foot type template
Match, and when matching unsuccessful, closes first distance sensor 101；When successful match, start first distance sensor 101.
Wherein, the foot type template saved in the first identification module 105, can be for the authorized person's of electric vehicle drive
Foot type template.Preferably, foot type template is generated using the common shoes shape of electric vehicle driver, foot type size.Only work as foot
When pattern plate and shooting images match, just start first distance sensor 101；Otherwise first distance sensor 101 is closed.When
After one range sensor 101 is closed, it can prevent the false triggering of first distance sensor 101 from causing undesirable braking dynamic
Make.
Moreover, matching by the way that image will be shot with foot type template, it can also prevent automobile from being braked by unauthorized personnel,
Further increase the security performance of automobile.
In the matching process, foot type segmentation is first carried out.The effect of foot type segmentation directly influences the matching of next step foot type.
It can be using the foot type segmentation based on monocular vision and the foot type segmentation based on stereoscopic vision.Monocular vision is to utilize an image
It acquires equipment (i.e. the first camera 104 is one) and obtains foot type, obtain the areal model of foot type.Stereoscopic vision is using multiple
Image capture device (i.e. the first camera 104 is multiple) obtains the different images of foot type, is converted into three-dimensional model.Then, it adopts
Determine that the shape of foot type is special with the modes such as the multiple features such as edge contour extraction method, toe finger combined techniques and articulations digitorum manus formula tracing
Sign.The shape feature of foot type is matched with foot type template again.
Preferably, first distance sensor 101 includes: generator, is arranged in front panel, for emitting detection harness；
Receiver is arranged on floor, for receiving detection harness.
It is furthermore preferred that first distance sensor 101 is embodied as capacitive approach switch.The measurement of capacitive approach switch is logical
It is often to constitute a pole plate of capacitor, and another pole plate is the shell of switch.When there is object to shift to close switch, no matter
Whether it is conductor, due to approaching for it, the dielectric constant of capacitor is always made to change, so that capacitance is made to change,
So that the circuit state being connected with measuring head also changes therewith, thus can control switch be switched on or switched off.It is this to connect
The object of nearly switch detection, is not limited to conductor, the liquid or powder that can insulate etc..
When the shoes that driver is worn do not have metal, it is particularly suitable for leaning on using capacitive approach switch detection people's foot
Closely.
Applicant have also found that while the car is driving, when driver due to unexpected and can not vehicle drive when, it is logical at present
Often passenger is helpless, has no braking method.For example, passenger cannot achieve emergency braking when driver faints suddenly.
In one embodiment, the system further include:
Second distance sensor 106, is arranged in front-row seats lower part and detection direction is towards floor, for when in the second inspection
When detecting the second object in survey range, the second trigger signal is generated, and send the second trigger signal to entire car controller 102；
Entire car controller 102, for generating when detecting that automobile is in driving status and receives the second trigger signal
Braking instruction；
Brake 103, for being based on braking instruction with electric car described in maximum braking moment forced brake.
Therefore, by being arranged in front-row seats lower part and second distance sensor 106 of the detection direction towards floor, heel row
Passenger can in case of emergency realize braking.
Preferably, the protective shell made of plastic material is arranged on second distance sensor 106.When protective shell is by savate
After smashing, second distance sensor 106 starts, to prevent the false triggering of rear passenger.
Preferably, second distance sensor 106 includes: generator, front-row seats lower part is arranged in, for emitting detection line
Beam；Receiver is arranged on floor, for receiving detection harness.
Preferably, further comprise:
Second camera 108, is arranged in front-row seats lower part and detection direction is towards floor, for obtaining the second object
Second shooting image；
Second identification module 109 is stored with scheduled foot type template, for the second shooting image to be identified mould with second
The foot type template saved in block 109 is matched, and when matching unsuccessful, closes second distance sensor 109；When matching at
When function, start second distance sensor 109.
Wherein, the foot type template saved in the second identification module 109 can be special delegated authority personnel (for example, driver
Family members personnel, driver the frequent passenger such as colleague) foot type template.Preferably, using the common shoes of special delegated authority personnel
Shape, foot type size generate foot type template.Only when foot type template and shooting images match, just start second distance sensor
106；Otherwise second distance sensor 106 is closed.After second distance sensor 106 is closed, second distance can be prevented
The false triggering of sensor 106 leads to undesirable braking maneuver.
Moreover, matching by the way that image will be shot with foot type template, it can also prevent automobile from being braked by unauthorized personnel,
Further increase the security performance of automobile.
In the matching process, foot type segmentation is first carried out.The effect of foot type segmentation directly influences the matching of next step foot type.
It can be using the foot type segmentation based on monocular vision and the foot type segmentation based on stereoscopic vision.Monocular vision is to utilize an image
It acquires equipment (i.e. second camera 108 is one) and obtains foot type, obtain the areal model of foot type.Stereoscopic vision is using multiple
Image capture device (i.e. second camera 108 is multiple) obtains the different images of foot type, is converted into three-dimensional model.Then, it adopts
Determine that the shape of foot type is special with the modes such as the multiple features such as edge contour extraction method, toe finger combined techniques and articulations digitorum manus formula tracing
Sign.The shape feature of foot type is matched with foot type template again.
Fig. 2 is the exemplary arrangements schematic diagram of embodiment of the present invention first distance sensor.
From Figure 2 it can be seen that first distance sensor 101 is arranged in the top of front panel 200 and detection direction is towards floor；The
One camera 104 is equally arranged in front panel 200 and images direction towards floor.It is taken the photograph when the foot 300 of driver enters first
As first 104 image obtain range when, the first camera 104 shoot foot 300 image.Based on the matching with predetermined foot type template
To determine whether to start first distance sensor 201.After determining starting first distance sensor 201, first distance sensor
101 generate the trigger signal of position quantity of the foot 300 in detection range.Then, first distance sensor 101 will by console
Trigger signal is sent to entire car controller, regenerates corresponding braking output order by entire car controller.
Fig. 3 is the exemplary arrangements schematic diagram of embodiment of the present invention second distance sensor.
As seen from Figure 3, second distance sensor includes generator 1061, is arranged in front-row seats lower part, for emitting inspection
Survey line beam；Receiver 1062, is arranged on floor, for receiving detection harness.Second camera 108 is equally arranged in front row seat
Chair lower part and camera shooting direction is towards floor.The protective shell made of plastic material, and second are arranged on second distance sensor 106
Range sensor 106 is in close state.
After protective shell is smashed by savate, and the foot 300 of rear passenger enters the image acquisition model of second camera 108
When enclosing, second camera 108 shoots the image of foot 300.Based on the matching with predetermined foot type template to determine whether starting second
Range sensor.
When determining that the transmitting of generator 1061 detects harness after starting second distance sensor, receiver 1062 receives detection
Harness.After generator 1061 detects that detection harness is blocked by foot 300, trigger signal is generated, and send trigger signal to
Then entire car controller generates brake signal by entire car controller.
Based on foregoing description, embodiment of the present invention also proposed a kind of braking method of electric car.
Fig. 4 is the exemplary flow chart of the braking method of electric car of the present invention.
As shown in figure 4, this method comprises:
Step 401: being arranged in front panel and image the bat that direction obtains the first object towards first camera on floor
Take the photograph image.
Step 402: the first identification module for being stored with scheduled foot type template will shoot image and the progress of foot type template
Match, when matching unsuccessful, closing is arranged in front panel and detection direction is towards the first distance sensor on floor, works as matching
When success, starting be arranged in front panel and detection direction towards floor first distance sensor.
Step 403: when be arranged in front panel and detection direction towards floor first distance sensor in the first detection
When detecting the first object in range, the first triggering letter comprising position quantity of first object in the first detection range is generated
Number, and the first trigger signal is sent to entire car controller.
Step 404: when entire car controller detects electric car power on signal and receives first trigger signal,
Braking moment output order is generated based on the position quantity.
Step 405: brake is based on the braking moment output order and exports braking moment.
In one embodiment, this method further include:
When be arranged in front-row seats lower part and detection direction towards floor second distance sensor in the second detection range
When inside detecting the second object, the second trigger signal is generated, and send second trigger signal to entire car controller；
When entire car controller detects that automobile is in driving status and receives second trigger signal, braking is generated
Instruction；
Brake is based on the braking instruction with electric car described in maximum braking moment forced brake.
In one embodiment, this method further comprises:
It is arranged in front-row seats lower part and the second camera on detection direction towards floor obtains the of second object
Two shooting images；
The second identification module for being stored with scheduled foot type template shoots image and foot type template progress for second
Match, and when matching unsuccessful, closes the second distance sensor；When successful match, start second distance sensor.
Can by embodiment of the present invention proposes the braking system of electric car be applied in various types of automobiles, than
Such as fuel-engined vehicle or new-energy automobile.
When being applied to new-energy automobile, can be applied to mixed power electric car (HEV), pure electric automobile (BEV),
Fuel cell electric vehicle (FCEV) and other new energy (such as supercapacitor, flywheel high-efficiency energy storage vehicle) automobiles etc..
In conclusion in embodiment of the present invention, first distance sensor is arranged in front panel and detection direction direction
Floor, for when detecting the first object in the first detection range, generating comprising first object in first inspection
The first trigger signal of the position quantity in range is surveyed, and sends first trigger signal to entire car controller；Entire car controller,
For generating braking based on the position quantity when detecting electric car power on signal and receiving first trigger signal
Torque output order；Brake, for exporting braking moment based on the braking moment output order.
Therefore, embodiment of the present invention proposes a kind of braking systems of electric car, without really trampling the system of can be realized
Dynamic operation, can reduce fatigue strength.
In addition, the technical issues of obscuring with accelerator pedal can also be solved due to having no practical pedal.
It should be noted that step and module not all in above-mentioned each process and each structure chart be all it is necessary, can
To ignore certain steps or module according to the actual needs.Each step execution sequence be not it is fixed, can according to need into
Row adjustment.The division of each module is intended merely to facilitate the division functionally that description uses, and in actual implementation, a module can
It is realized with point by multiple modules, the function of multiple modules can also be realized by the same module, these modules can be located at same
In a equipment, it can also be located in different equipment.
Hardware module in each embodiment mechanically or can be realized electronically.For example, a hardware module
It may include that the permanent circuit specially designed or logical device (such as application specific processor, such as FPGA or ASIC) are specific for completing
Operation.Hardware module also may include programmable logic device or circuit by software provisional configuration (as included general procedure
Device or other programmable processors) for executing specific operation.
Mechanical system is used as specific, or uses dedicated permanent circuit, or using the circuit of provisional configuration
(such as being configured by software) Lai Shixian hardware module can be determined according to cost and temporal consideration.
The present invention also provides a kind of machine readable storage medium, storage is for making a machine execute side as described herein
The instruction of method.
Specifically, system or device equipped with storage medium can be provided, store in realization on the storage medium
State the software program code of the function of any embodiment in embodiment, and make the system or device computer (or CPU or
MPU the program code being stored in a storage medium) is read and executed.
Further, it is also possible to make operating system for calculating hands- operation etc. complete part by the instruction based on program code
Or whole practical operation.It can also will write and be inserted into the expansion board in computer from the program code that storage medium is read
It in set memory or writes in the memory being arranged in the expanding element being connected to a computer, is then based on program
The instruction of code makes the CPU etc. being mounted on expansion board or expanding element come execution part and whole practical operations, thus real
The function of any embodiment in existing above embodiment.
Storage medium embodiment for providing program code include floppy disk, hard disk, magneto-optic disk, CD (such as CD-ROM,
CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), tape, non-volatile memory card and ROM.Selectively,
It can be by communication network from download program code on server computer or cloud.
It should be noted that system structure described in the various embodiments described above can be physical structure, it is also possible to logic
Structure, that is, some modules may be realized by same physical entity, be realized alternatively, some modules may divide by multiple physical entities,
Alternatively, can be realized jointly by certain components in multiple autonomous devices.
Detailed displaying and explanation carried out to the present invention above by attached drawing and preferred embodiment, however the present invention is not limited to
These embodiments having revealed that, base could be aware that with above-mentioned multiple embodiment those skilled in the art, can combine above-mentioned difference
Code audit means in embodiment obtain the more embodiments of the present invention, these embodiments also protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of braking system of electric car characterized by comprising
First distance sensor, is arranged in front panel and detection direction is towards floor, examines in the first detection range for working as
When measuring the first object, the first triggering letter comprising position quantity of first object in first detection range is generated
Number, and first trigger signal is sent to entire car controller；
Entire car controller, for being based on institute when detecting electric car power on signal and receiving first trigger signal
It states position quantity and generates braking moment output order；
Brake, for exporting braking moment based on the braking moment output order.
2. the braking system of electric car according to claim 1, which is characterized in that further comprise:
First camera is arranged in front panel and images direction towards floor, for obtaining the shooting figure of first object
Picture；
First identification module is stored with scheduled foot type template, is used for the shooting image and foot type template progress
Match, and when matching unsuccessful, closes the first distance sensor；When successful match, start the first distance sensing
Device.
3. the braking system of electric car according to claim 1, which is characterized in that the first distance sensor packet
It includes:
Generator is arranged in front panel, for emitting detection harness；
Receiver is arranged on floor, for receiving detection harness.
4. the braking system of electric car according to claim 1, which is characterized in that
The first distance sensor is capacitive approach switch.
5. the braking system of electric car according to claim 1, which is characterized in that further include:
Second distance sensor, is arranged in front-row seats lower part and detection direction is towards floor, for when in the second detection range
When inside detecting the second object, the second trigger signal is generated, and send second trigger signal to entire car controller；
Entire car controller, for generating system when detecting that automobile is in driving status and receives second trigger signal
Dynamic instruction；
The wherein brake, for being based on the braking instruction with electric car described in maximum braking moment forced brake.
6. the braking system of electric car according to claim 5, which is characterized in that further comprise:
Second camera, is arranged in front-row seats lower part and detection direction is towards floor, for obtaining the of second object
Two shooting images；
Second identification module is stored with scheduled foot type template, for will second shooting image and the foot type template into
Row matching, and when matching unsuccessful, close the second distance sensor；When successful match, start the second distance
Sensor.
7. a kind of braking method of electric car characterized by comprising
When being arranged in front panel and the first distance sensor on detection direction towards floor detects in the first detection range
When the first object, the first trigger signal comprising position quantity of first object in first detection range is generated, and
First trigger signal is sent to entire car controller；
When entire car controller detects electric car power on signal and receives first trigger signal, it is based on the position
Amount generates braking moment output order；
Brake is based on the braking moment output order and exports braking moment.
8. the braking method of electric car according to claim 7, which is characterized in that further include:
It is arranged in front panel and the first camera for imaging direction towards floor obtains the shooting image of first object；
The first identification module for being stored with scheduled foot type template matches the shooting image with the foot type template, when
When matching unsuccessful, the first distance sensor is closed, when successful match, starts the first distance sensor.
9. the braking method of electric car according to claim 7, which is characterized in that this method further include:
When being arranged in front-row seats lower part and the second distance sensor on detection direction towards floor is examined in the second detection range
When measuring the second object, the second trigger signal is generated, and send second trigger signal to entire car controller；
When entire car controller detects that automobile is in driving status and receives second trigger signal, brake finger is generated
It enables；
The brake is based on the braking instruction with electric car described in maximum braking moment forced brake.
10. the braking method of electric car according to claim 9, which is characterized in that this method further comprises:
It is arranged in front-row seats lower part and the second camera on detection direction towards floor obtains the second count of second object
Take the photograph image；
The second identification module for being stored with scheduled foot type template shoots image and foot type template progress for described second
Match, and when matching unsuccessful, closes the second distance sensor；When successful match, start the second distance sensing
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229331.7A CN109515408A (en) | 2018-10-22 | 2018-10-22 | A kind of braking system and braking method of electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229331.7A CN109515408A (en) | 2018-10-22 | 2018-10-22 | A kind of braking system and braking method of electric car |
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| CN1517254A (en) * | 2003-01-08 | 2004-08-04 | 李吉洙 | Automatic brake device of vehicle capable of easily controlling speed |
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| CN107199998A (en) * | 2016-03-18 | 2017-09-26 | 株式会社斯巴鲁 | The arresting stop of vehicle |
| CN108656956A (en) * | 2017-03-27 | 2018-10-16 | 杭州长江汽车有限公司 | Electric vehicle brake method, system and electric vehicle |
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| US20030188600A1 (en) * | 2000-03-13 | 2003-10-09 | Konrad Slanec | Pedal arrangement for a motor vehicle with a displacement sensor unit |
| CN1517254A (en) * | 2003-01-08 | 2004-08-04 | 李吉洙 | Automatic brake device of vehicle capable of easily controlling speed |
| CN103303307A (en) * | 2012-03-13 | 2013-09-18 | 通用汽车环球科技运作有限责任公司 | Driver assistance system |
| CN107199998A (en) * | 2016-03-18 | 2017-09-26 | 株式会社斯巴鲁 | The arresting stop of vehicle |
| CN108656956A (en) * | 2017-03-27 | 2018-10-16 | 杭州长江汽车有限公司 | Electric vehicle brake method, system and electric vehicle |
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Application publication date: 20190326 |