CN109305153A - Electric vehicle with braking control system - Google Patents
Electric vehicle with braking control system Download PDFInfo
- Publication number
- CN109305153A CN109305153A CN201811143619.2A CN201811143619A CN109305153A CN 109305153 A CN109305153 A CN 109305153A CN 201811143619 A CN201811143619 A CN 201811143619A CN 109305153 A CN109305153 A CN 109305153A
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- Prior art keywords
- braking
- pedal
- electric
- mechanical
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Classifications
-
- 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
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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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- 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
- 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
- B60T7/06—Disposition of pedal
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Braking Elements And Transmission Devices (AREA)
- Regulating Braking Force (AREA)
Abstract
The present invention proposes that a kind of electric vehicle with braking control system, braking control system include pedal, electric brake arrangement and mechanical brake device.Electric brake arrangement includes detector cell to obtain pedal opening and is electrically connected electric braking controller with detector cell, when the pedal is trampled to electric braking opening value, it controls driving motor and exports feedback torque, to realize electric braking and carry out energy regenerating.Mechanical brake device connect by gear unit with pedal, and gear unit is used for when pedal is trampled to mechanical braking opening value, so that the rotational action of the pedal and the linkage of the braking maneuver of the mechanical brake device, to realize mechanical braking.Wherein, electric braking opening value is less than mechanical braking opening value, when so that pedal being trampled in small angle range, can only be braked by electric brake arrangement, energy loss caused by when reducing mechanical brake device using friction catch, so as to recycle more electricity.
Description
Technical field
The present invention relates to vehicle braking control field, in particular to a kind of electric vehicle with braking control system.
Background technique
Mechanical brake device and electric brake arrangement are usually equipped in electric vehicle simultaneously.The work of common mechanical brake device
Make principle are as follows: when brake pedal is trampled, brake block is pressed in brake disc, makes to generate friction between brake block and brake disc
Power reduces vehicle wheel rotational speed, to realize braking.Mechanical brake device has brake response rapid, the strong feature of stopping power, but by
In friction catch, amount of heat can be generated.Electric brake arrangement can also be referred to as regenerative braking device, common work
Principle are as follows: when brake pedal is operated, force control driving motor to slow down, and to the driving motor in moderating process
The machinery of generation can be carried out recycling, be stored in the Vehicular battery of electric vehicle.
Braking control system in the prior art, when brake pedal is trampled, mechanical brake device and electric braking dress
It sets and works at the same time, brake force is stronger.But driver tramples brake pedal (i.e. in a small angle range in many cases,
When dubbing brake), it is undesirable that vehicle emergency brake, and vehicle deceleration is only hoped, so strong brake force is not needed at this time.Together
When, since hydraulic brake system and electric brake arrangement work at the same time, lead to the energy generated when braking much all conversion frictions
Caused heat loss can not be recovered.
Summary of the invention
The main object of the present invention is to provide a kind of brake of electric vehicle control system, it is intended to solve existing control for brake system
When system tramples brake pedal in small angle range, mechanical brake device and electrical braking device are worked at the same time, and speed is caused to subtract
It is fast very fast, do not meet driver intention, while the technical issues of cause unnecessary energy dissipation.
In order to realize that the above technical purpose, the present invention propose a kind of electric vehicle with braking control system, comprising:
Pedal；
Electric brake arrangement, including to obtain the pedal displacement data detector cell and with the detector list
Member is electrically connected electric braking controller, and the detector cell includes the angle sensor to detect the aperture of the pedal
Device, the electric braking controller are used for when the pedal is trampled to electric braking opening value, control driving motor output
Feedback torque, to realize electric braking and carry out energy regenerating；And
Mechanical brake device is connect by gear unit with the pedal, and the gear unit is used in the pedal quilt
When trampling to mechanical braking opening value, so that the rotational action of the pedal and the braking maneuver of the mechanical brake device join
It is dynamic, to realize mechanical braking；
The electric braking opening value is less than the mechanical braking opening value.
It is preferred that the detector cell further includes the velocity sensor to detect the velocity of rotation value of the pedal, when
When the velocity of rotation value of the pedal is greater than emergency braking velocity amplitude, the electric controller control terminates the driving motor
Braking maneuver.
It is preferred that the mechanical brake device is hydraulic brake system, including master cylinder and action component, the braking master
Cylinder includes chamber, is equipped with the piston element along first direction sliding setting in the chamber, and the piston element is by the chamber
It is divided into driving chamber and hydraulic cavities, the pedal is sequentially connected by gear unit and the piston element, so that the pedal
Rotational action and the sliding action of the piston element link, the action component moves by the hydraulic-driven in the hydraulic cavities
Make.
It is preferred that the gear unit includes the driving lever extended in a first direction, the driving lever is described with being connected to
The outer end of pedal, and the inner end of the driving chamber is protruded into, the driving lever is during the pedal rotates by drives edge institute
It is mobile towards the piston element to state first direction, is reserved with gap between the inner end of the driving lever and the piston element,
And after the driving lever inner end is abutted with the piston element, drive the piston element towards one Slideslip of hydraulic cavities and
With hydraulic stroke；
The inner end of the driving lever is when the aperture of the pedal is less than the mechanical braking opening value in the gap
Sliding, the driving lever abut the piston portion when the aperture of the pedal reaches the mechanical braking opening value in range.
It is preferred that the side that the piston element is abutted with by the driving lever is equipped with groove, the inner end of the driving lever is stretched
Enter the groove, and without interference between the side wall of the groove；
The gear unit further includes forcing coupling device, and the pressure coupling device includes the first magnetic part, the second magnetic
Suction portion and Coupling Control Unit, first magnetic part and the second magnetic part are relatively divided into inner circumferential side wall and the institute of the groove
Driving lever peripheral side is stated, the Coupling Control Unit is electrically connected with first magnetic part, the second magnetic part respectively, and described first
One of magnetic part and second magnetic part are electromagnet, and another is permanent magnet, and the Coupling Control Unit controls the electricity
Magnet is powered, and generates magnetic attraction between the permanent magnet, so that the driving lever and the piston element opposite can not move
It is dynamic.
It is preferred that the detector cell further includes the velocity sensor to detect the velocity of rotation value of the pedal, institute
The detector cell for stating Coupling Control Unit and the electrical control gear is electrically connected, for obtaining the velocity of rotation of the pedal
Value, when the velocity of rotation value of the pedal is greater than emergency braking velocity amplitude, the Coupling Control Unit controls first magnetic
Portion and the second magnetic part generate magnetic attraction, and electric controller control terminates braking maneuver to the driving motor.
It is preferred that the electric vehicle further includes vehicle speed sensor, the electric brake arrangement and the vehicle speed sensor are electrical
Connection to obtain speed, when the electric vehicle vehicle speed value be greater than speed limit value, and the velocity of rotation of the pedal be greater than institute
When stating emergency braking velocity amplitude, the electric controller control terminates braking maneuver to the driving motor.
It is preferred that the Coupling Control Unit obtains the charged value of Vehicular battery, when the charged value of the Vehicular battery is greater than lotus
When electric limit value, the Coupling Control Unit controls first magnetic part and the second magnetic part generates magnetic attraction, the electrical control
Device control terminates braking maneuver to the driving motor.
It is preferred that the mechanical braking opening value is the 2-5% of the entire rotational travel of the pedal.
It is preferred that the mechanical braking opening value is the 2.5% of the entire rotational travel of the pedal.
In technical solution provided by the invention, with braking control system electric vehicle, braking control system include pedal,
Electric brake arrangement and mechanical brake device.Electric brake arrangement includes the detector list to obtain the pedal displacement data
Member and with the detector cell be electrically connected electric braking controller, the detector cell includes to detect the pedal
Aperture angular transducer, the electric braking controller is used for when the pedal is trampled to electric braking opening value,
The pedal opening value control driving motor obtained according to the angular transducer exports feedback torque, to realize that electric braking is gone forward side by side
Row energy regenerating.Mechanical brake device is connect by gear unit with pedal, and gear unit in pedal for being trampled to machinery
When braking opening value, so that the rotational action of the pedal and the braking maneuver of the mechanical brake device link, to realize machine
Tool braking.Wherein, electric braking opening value is less than mechanical braking opening value, when so that pedal being trampled in small angle range,
Can only be braked by electric brake arrangement, when reducing mechanical brake device using friction catch caused by energy loss, from
And more electricity can be recycled.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of braking control system of electric vehicle provided by the invention；
Fig. 2 is the partial sectional view of one embodiment of mechanical brake device in Fig. 1；
Fig. 3 is the partial sectional view that mechanical brake device includes embodiment when forcing coupling device in Fig. 1；
Fig. 4 is enlarged diagram at A in Fig. 3.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | Pedal | 32 | Master cylinder |
| 200 | Electric brake arrangement | 33 | Chamber |
| 300 | Mechanical brake device | 331 | Driving chamber |
| 400 | Driving motor | 332 | Hydraulic cavities |
| 500 | Battery | 34 | Piston element |
| 20 | Electric braking controller | 341 | Groove |
| 21 | Detector cell | 301 | First magnetic part |
| 30 | Gear unit | 302 | Second magnetic part |
| 31 | Driving lever |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention provides a kind of electric vehicle with braking control system, applied to the electric vehicle with energy recovery function
In.
Referring to Fig. 1, the electric vehicle with braking control system includes braking control system, the control for brake system
System includes pedal 100, electric brake arrangement 200 and mechanical brake device 300, and the electric brake arrangement 200 includes electrical system
The detector cell 21 of movement controller 20 and the displacement data to obtain the pedal 100, the detector cell 21 include
To detect the angular transducer of the aperture of the pedal 100, the electric braking controller 20 may not be individualism
Component, and be possible to be incorporated into other control devices, such as entire car controller.The electric braking controller 20 is used in institute
When stating pedal 100 and being trampled to electric braking opening value, control driving motor 400 exports feedback torque, and carries out energy regenerating.
The mechanical brake device 300 is connect by gear unit 30 with the pedal 100, and the gear unit 30 described for stepping on
When plate 100 is trampled to mechanical braking opening value, so that the rotational action of the pedal 100 and the mechanical brake device 300
Braking maneuver linkage, to realize mechanical braking.And the electric braking opening value is less than the mechanical braking opening value.
It is turned round it should be noted that the electric brake arrangement 200 in the present invention refers to by directly controlling vehicle traction motor 400
Square carries out the brake apparatus of energy regenerating, is also generally referred to as regenerative braking device.It is electrically made described in the electric controller 20
Dynamic device carries out there are many modes of energy regenerating, such as can be flywheel energy storage, hydraulic accumulation energy or electrochemical energy storage.In this reality
It applies in example, the electric brake arrangement 200 uses electrochemical energy storage, and the driving motor 400 is generated in braking process
Mechanical energy is changed into electrochemical energy, is stored in Vehicular battery 500.300 value of mechanical brake device in the present invention will be by that will make
Motion block is pressed in brake disc, the brake apparatus braked using frictional force.This mode of braking, which has, to be swift in response, brakes
The strong advantage of power, but due to friction catch, amount of heat can be generated.It is appreciated that the detector cell 21 specifically can be with
Including multiple sensors such as angular transducer, displacement sensors, there may be certain logic computing function, also so as to obtain
Take all kinds of displacement datas (such as the rotation aperture of pedal, rotation displacement, velocity of rotation etc.) in relation to the pedal 100.
When driver's pushes pedals 100, pedal 100 turns to electric braking opening value first, at this time turn of pedal 100
The braking maneuver of dynamic movement and the mechanical brake device 300 does not link, the braking control system only electric brake arrangement 200
Work, the displacement data of the pedal is detected by detector cell 21.It controls driving motor 400 and exports feedback torque, and will
The mechanical energy generated in 400 moderating process of driving motor is converted into the electric energy in the battery 500 to realize energy regenerating.
When the pedal 100 continues to rotate, more than the electric braking opening value, when reaching mechanical braking opening value, mechanical braking dress
The gear unit 30 for setting 300 acts the rotational action of the pedal 100 and the mechanical braking of the mechanical brake device 300
Linkage, i.e., in the stroke that the pedal 100 rotates down, the rotational action of the pedal 100 causes the mechanical braking to fill
The brake block for setting 300 is pressed in brake disc, generates frictional force to realize mechanical braking.And electric braking opening value is less than machinery
Brake opening value.
The technical solution provided through this embodiment, so that driver, when dubbing brake, the pedal is only in the electricity
It is rotated between gas braking opening value and the mechanical braking opening value, at this point, the braking control system only electric brake arrangement
200 work, will not generate excessive brake force.When driver attempts emergency brake, the pedal 100 rotates more than the mechanical system
Dynamic aperture, at this point, further realizing that the rotation of the pedal 100 is dynamic by the gear unit 30 of the mechanical brake device 300
Make to act with the mechanical braking of the mechanical brake device 300 and link, to provide bigger brake force, at this time electrodynamic braking with
Mechanical braking exists simultaneously.In this way, by the braking system of the electric vehicle, so that braking process is more in line with the meaning of driver
Figure, also, in the case where dubbing brake, avoid the frictional force due to mechanical brake device 300 from causing heat loss, so as to
Enough recycle more energy.
The size of the mechanical braking opening value with no restriction, can drive the pedal number of point in a flash by collecting driver
According to designing.In the present embodiment, the mechanical braking opening value is the 2-5% of the entire rotational travel of the pedal.It is preferred that institute
State 2.5% that mechanical braking opening value is the entire rotational travel of the pedal.
But sometimes under some emergencies, relatively reliable braking maneuver is needed, accident is avoided.For this purpose, in this reality
It applies in example, detector cell 21 further further includes the velocity sensor to detect the velocity of rotation value of the pedal 100,
When the velocity of rotation value of the pedal is greater than emergency braking velocity amplitude, the control of electric controller 20 is to the driving motor
400 terminate braking maneuver.In this way, mechanical brake device 300 is capable of providing more stable effective under the situation of emergency braking
Brake force.
In the case of speed is very fast, if electric brake arrangement 200 and the mechanical brake device 300 work simultaneously
Make, vehicle may be caused to have skidded phenomenon since brake force is excessive.For this purpose, the present embodiment is further too fast in speed
Control only carries out mechanical braking movement under situation.Specifically, the electric vehicle further includes vehicle speed sensor, the electric controller
20 are electrically connected with the vehicle speed sensor, to obtain the vehicle speed value of the electric vehicle, when the vehicle speed value of the electric vehicle is greater than
Speed limit value, and when the velocity of rotation of the pedal 100 is greater than the emergency braking velocity amplitude, the electric controller 20 controls
Braking maneuver is terminated to the driving motor 400.
The specific structure of the mechanical brake device 300 with no restriction, in the present embodiment, referring to Fig. 2, the mechanical system
Dynamic device 300 is hydraulic brake system, including master cylinder 32 and action component (not shown), and the master cylinder 32 wraps
It includes chamber 33, is equipped with the piston element 34 that can slide setting along first direction in the chamber 33, the piston element 34 is by institute
It states chamber 33 and is divided into driving chamber 331 and hydraulic cavities 332.And pedal 100 passes through gear unit 30 and the piston element 34
Transmission connection, so that the sliding action of the rotational action of the pedal 100 and the piston element 34 links, the action component
By in the hydraulic cavities 332 hydraulic-driven movement.For example, the action component may include brake block, the brake block with
The driving piston that sliding is set to the hydraulic cavities is connected, and when institute's piston element 34 is towards 332 1 Slideslip of hydraulic cavities, states hydraulic
When pressure value in chamber 332 increases, the driving piston is slided by driving, so that the brake block be driven to compress brake disc.
Further, the gear unit 30 includes the driving lever 31 extended in a first direction, and the driving lever 31 has
It is connected to the outer end of the pedal 100, and protrudes into the inner end of the driving chamber 331, the driving lever 31 is at 100 turns of the pedal
The first direction described in drives edge is mobile towards the piston element 34 in dynamic process, the inner end of the driving lever 31 with it is described
Gap is reserved between piston element 34 to form idle stroke, and 31 inner end of the driving lever is abutted with the piston element 34
Afterwards, drive the piston element 34 towards 331 1 Slideslip of hydraulic cavities.Biography between the driving lever 31 and pedal 100
Dynamic structure with no restriction, such as can be turbine and worm structure or gear & rack structure, as long as being able to achieve the pedal 100
Rotational action is converted into the driving lever 31 along the translation motion of first direction.
The inner end of the driving lever 31 is when the aperture of the pedal 100 is less than the mechanical braking opening value in the sky
Stroke slides in the range of (i.e. gap), and the driving lever 31 reaches or surpasses the mechanical system in the aperture of the pedal 100
When dynamic opening value, the inner end of the driving lever 31 abuts the piston element 34.By above structure, realize in institute's pedal opening
In the case of the mechanical braking opening value, the rotation of the pedal 100 can just cause the sliding of the piston element 34,
To which the rotational action of the pedal 100 and the braking maneuver of the mechanical brake device 300 link.
Further, need to realize the strong of the pedal 100 and the mechanical brake device 300 under some special cases
System linkage.For example, under the situation (the velocity of rotation value of pedal is greater than emergency braking velocity amplitude) of emergency braking, if pedal 100
Aperture be less than the mechanical braking opening value, since electric brake arrangement 200 has not worked at this time, in order to avoid due to null
The presence of journey causes braking distance to increase, and the gear unit 30 forces the knot of coupling also with that can cancel the idle stroke
Structure.In addition, having expired in the charged of battery 500, it is no longer necessary in the case where energy regenerating, the rotation of the pedal it is entire
Stroke preferably uses mechanical brake device 300, is also required to cancel idle stroke at this time.
Further, it is described force coupling structure in the present embodiment, referring specifically to Fig. 3, the piston element 34
The side abutted with by the driving lever 31 is equipped with groove 341, and the groove 341 is protruded into the inner end of the driving lever 31, and with
Without interference between the side wall of the groove 341.The gear unit 30 further includes forcing coupling device, the pressure coupling device
Including the first magnetic part 301, the second magnetic part 302 and Coupling Control Unit.It is appreciated that the Coupling Control Unit may not be single
Solely existing component, and be possible to be incorporated into other control devices, such as entire car controller.First magnetic part, 301 He
Second magnetic part 302 is relatively divided into 31 peripheral side of inner circumferential side wall and the driving lever of the groove 341, the coupling control
Device processed is electrically connected with first magnetic part 301, the second magnetic part 302 respectively, first magnetic part 301 and described the
One of them is electromagnet to two magnetic parts 302, and another is permanent magnet, and the Coupling Control Unit controls the electromagnet and is powered, with
Magnetic attraction is generated between the permanent magnet, so that the driving lever 31 can not be relatively moved with the piston element 34.In this way,
Under above-mentioned special case, the piston element 34 can be controlled and coupled with the driving lever 31 pressure, to reach cancellation null
The purpose of journey.
Further, in order to judge whether vehicle is in emergency braking situation, the detector cell 21 further includes being used for
Detect the velocity sensor of the velocity of rotation value of the pedal 100, the inspection of the Coupling Control Unit and the electrical control gear
It surveys device unit 21 to be electrically connected, for obtaining the velocity of rotation value of the pedal 100, when the velocity of rotation value of the pedal 100
When greater than emergency braking velocity amplitude, it is judged as emergency braking situation, the Coupling Control Unit controls 301 He of the first magnetic part
Second magnetic part 302 generates magnetic attraction, and the control of the electric controller 20 terminates braking maneuver to the driving motor 400.
Further, in order to judge whether the vehicle does not need to carry out energy regenerating, the Coupling Control Unit obtains vehicle
The charged value of battery 500, when the charged value of the battery 500 is greater than charged limit value, described in the Coupling Control Unit control
First magnetic part 301 and the second magnetic part 302 generate magnetic attraction, and the control of the electric controller 20 is to the driving motor
400 terminate braking maneuver.
Further, in order to make electric vehicle using electric brake arrangement 200 braked in the case of, can have with
The braking of mechanical brake device 300 tramples sense with identical, so that the driving experience of driver is more comfortable.The electric vehicle
Braking system further comprises pedal simulator, for providing uniform return to the pedal 100 under various braking situations
Multiple power.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of electric vehicle with braking control system, which is characterized in that the braking control system includes:
Pedal；
Electric brake arrangement, including to obtain the pedal displacement data detector cell and with detector cell electricity
Property connection electric braking controller, the detector cell includes the angular transducer to detect the aperture of the pedal, institute
Electric braking controller is stated for when the pedal is trampled to electric braking opening value, control driving motor output feedback to be turned round
Square, to realize electric braking and carry out energy regenerating；And
Mechanical brake device is connect by gear unit with the pedal, and the gear unit in the pedal for being trampled
When to mechanical braking opening value, so that the rotational action of the pedal and the braking maneuver of the mechanical brake device link, with
Realize mechanical braking；
The electric braking opening value is less than the mechanical braking opening value.
2. as described in claim 1 with the electric vehicle of braking control system, which is characterized in that the detector cell also wraps
The velocity sensor for including the velocity of rotation value to detect the pedal, when the velocity of rotation value of the pedal is greater than emergency braking
When velocity amplitude, the electric controller control terminates braking maneuver to the driving motor.
3. as described in claim 1 with the electric vehicle of braking control system, which is characterized in that the mechanical brake device is
Hydraulic brake system, including master cylinder and action component, the master cylinder include chamber, are equipped in the chamber along first
The chamber is divided into driving chamber and hydraulic cavities by the piston element of direction sliding setting, the piston element, and the pedal is logical
It crosses gear unit and the piston element is sequentially connected, so that the sliding of the rotational action of the pedal and the piston element is dynamic
It links, the action component is acted by the hydraulic-driven in the hydraulic cavities.
4. as claimed in claim 3 with the electric vehicle of braking control system, which is characterized in that the gear unit includes edge
The driving lever that first direction extends, the driving lever have the outer end for being connected to the pedal and protrude into the interior of the driving chamber
End, driving lever first direction described in drives edge during the pedal rotates is mobile towards the piston element,
Gap is reserved between the inner end of the driving lever and the piston element, and the driving lever inner end is supported with the piston element
After connecing, drive the piston element towards one Slideslip of hydraulic cavities；
The inner end of the driving lever is when the aperture of the pedal is less than the mechanical braking opening value in the range in the gap
Interior sliding, the driving lever abut the piston portion when the aperture of the pedal reaches the mechanical braking opening value.
5. as claimed in claim 4 with braking control system electric vehicle, which is characterized in that the piston element with by institute
The side for stating driving lever abutting is equipped with groove, and the groove is protruded into the inner end of the driving lever, and with the side wall of the groove it
Between without interference；
The gear unit further includes forcing coupling device, and the pressure coupling device includes the first magnetic part, the second magnetic part
And Coupling Control Unit, first magnetic part and the second magnetic part be relatively divided into the groove inner circumferential side wall and the master
Lever peripheral side, the Coupling Control Unit are electrically connected with first magnetic part, the second magnetic part respectively, first magnetic
One of portion and second magnetic part are electromagnet, and another is permanent magnet, and the Coupling Control Unit controls the electromagnet
It is powered, magnetic attraction is generated between the permanent magnet, so that the driving lever can not be relatively moved with the piston element.
6. as claimed in claim 5 with the electric vehicle of braking control system, which is characterized in that the detector cell also wraps
Include the velocity sensor of the velocity of rotation value to detect the pedal, the Coupling Control Unit and the electrical control gear
Detector cell is electrically connected, for obtaining the velocity of rotation value of the pedal, when the velocity of rotation value of the pedal is greater than tightly
When anxious retro-speed value, the Coupling Control Unit controls first magnetic part and the second magnetic part generates magnetic attraction, and described
Electric controller control terminates braking maneuver to the driving motor.
7. the electric vehicle with braking control system as described in claim 2 or 6, which is characterized in that the electric vehicle also wraps
Vehicle speed sensor is included, the electric brake arrangement and the vehicle speed sensor are electrically connected to obtain speed, when described electronic
The vehicle speed value of vehicle is greater than speed limit value, and when the velocity of rotation of the pedal is greater than the emergency braking velocity amplitude, described electrical
Controller controls the driving motor and stops braking maneuver.
8. as claimed in claim 5 with the electric vehicle of braking control system, which is characterized in that the Coupling Control Unit obtains
The charged value of Vehicular battery, when the charged value of the Vehicular battery is greater than charged limit value, described in the Coupling Control Unit control
First magnetic part and the second magnetic part generate magnetic attraction, and it is dynamic that the electric controller control terminates braking to the driving motor
Make.
9. as described in claim 1 with the electric vehicle of braking control system, which is characterized in that the mechanical braking opening value
For the 2-5% of the entire rotational travel of the pedal.
10. as claimed in claim 9 with the electric vehicle of braking control system, which is characterized in that the mechanical braking aperture
Value is the 2.5% of the entire rotational travel of the pedal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811143619.2A CN109305153A (en) | 2018-09-28 | 2018-09-28 | Electric vehicle with braking control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109849679A (en) * | 2019-03-28 | 2019-06-07 | 潍柴动力股份有限公司 | A kind of method for recovering brake energy and device |
| CN112109690A (en) * | 2019-07-17 | 2020-12-22 | 上汽通用五菱汽车股份有限公司 | Automatic parking control method, device and computer readable storage medium |
| CN114643962A (en) * | 2022-03-31 | 2022-06-21 | 上汽通用五菱汽车股份有限公司 | Vehicle brake control method and device and computer equipment |
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| CN114643962A (en) * | 2022-03-31 | 2022-06-21 | 上汽通用五菱汽车股份有限公司 | Vehicle brake control method and device and computer equipment |
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Application publication date: 20190205 |