CN105928715A - Test bed simulating dual-motor-driven electric vehicle regenerative brake performance and test method - Google Patents
Test bed simulating dual-motor-driven electric vehicle regenerative brake performance and test method Download PDFInfo
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- CN105928715A CN105928715A CN201610458901.4A CN201610458901A CN105928715A CN 105928715 A CN105928715 A CN 105928715A CN 201610458901 A CN201610458901 A CN 201610458901A CN 105928715 A CN105928715 A CN 105928715A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a test bed simulating the dual-motor-driven electric vehicle regenerative brake performance and a test method. The test bed comprises a horizontal rack, a front wheel shafting simulation mechanism, a rear wheel shafting simulation mechanism and a load simulation mechanism. The rear wheel shafting simulation mechanism comprises a rear wheel shaft, a rear wheel shaft drive mechanism and a mechanical brake. The rear wheel shaft comprises left and right half shafts. The rear wheel shaft drive mechanism comprises a left drive motor and a right drive motor. The mechanical brake comprises left and right rear brake discs. The left drive motor and the right drive motor form a regenerative brake simulation system. The load simulation mechanism comprises left and right loading motors. The test method comprises the steps of test parameter setting, regenerative brake mode selection, stable driving simulation before brake, load loading simulation and regenerative brake simulation. The test bed and the test method have the advantages of reasonable design, easy use and operation and good use effect, and can effectively simulate the regenerative brake condition of a dual-motor-driven electric vehicle.
Description
Technical field
The invention belongs to electric vehicle brake performance simulation experimental technique field, especially relate to a kind of simulated dual motor and drive
Dynamic electric automobile regenerative braking performance test stand and test method.
Background technology
Nowadays, the energy and environment problem in worldwide becomes increasingly conspicuous, and therefore electric automobile becomes future automobile
One of inexorable trend of development.It is exactly again that the braking procedure of electric automobile is different from an importance of traditional combustion engine automobile
The application of raw braking technology.The regenerative braking of electric automobile, it is simply that utilize the electric braking of motor to produce opposing torque and make vehicle
Slow down or stop.For induction machine, electric braking has reversing braking, DC injection braking and regenerative braking etc..Wherein, can be real
Now by the only regenerative braking of energy regenerating in brake process, its essence is the power supply that the rotational frequency of rotor exceedes motor
Frequency, motor works in generating state, is that electric energy is filled to battery by the reverse fly-wheel diode of inverter by changes mechanical energy
Electricity.
It is able to maintain that certain when can stop in short distance and maintain travel direction stability and long descending during running car
The ability of speed, referred to as automobile braking performance.Braking ability is one of important performance indexes of automobile, is directly connected to traffic peace
Entirely, the premise of Way of Regenerating Energy Feedback and utilization is to ensure that security.The advantage that regenerating braking energy reclaims is except improving energy profit
With outside rate, also reduce the mechanical wear of the mode of braking such as machinery, hydraulic pressure, more accurate control for brake, and fall can be realized
The braking heat fading phenomenon etc. produced because temperature raises in low orthodox car braking procedure.
Electric vehicle brake can be divided into following Three models, and different mode should be aided with different control strategies.Three kinds of brakings
Pattern is as follows: (1) brake hard: corresponding to braking deceleration more than 2m/s2Process, should be with for the consideration in terms of security
Mechanical friction braking is main, and electric braking only helps out；When bringing to a halt, can be according to the difference of initial velocity, by car
ABS controls to provide corresponding mechanical friction brake force；(2) mild or moderate braking: corresponding to automobile braking in normal conditions
Journey, such as red light or parking etc. of pulling in, can be divided into moderating process and stopped process；Electric braking is responsible for moderating process, stops
Process has been braked by mechanical friction；(3) braking during the long descending of automobile: the long descending of electric automobile typically occurs in sky way
During lower gentle slope, when required braking force is little, pure braking mode can be worked in completely.Can by three of the above braking mode
Knowing, in addition to brake hard, other both of which can apply regenerative braking, and energy feedback brake produced is female to direct current
Line, charges the battery.
At present, electric automobile Regenerative Braking Technology increasingly comes into one's own, but going deep into along with research, technical staff finds
Some technical problem is eager to need to solve, the problem such as optimization in terms of control strategy and the coupling of parameter.And solve above-mentioned asking
The effective ways of topic are exactly the method using simulated test, by the simulated test in product design and advanced development, by automobile
The shortcomings and deficiencies exposure of braking ability processes, then by improving and solving the shortcomings and deficiencies exposing and finding, thus improve
The braking ability of vehicle.Thus, a kind of simple in construction, reasonable in design and processing and fabricating need to be designed and use easy and simple to handle, use
Effective simulated dual motor driven electric car regenerative braking performance test stand, can effective simulated dual motor driven electric car
Regenerative braking operating mode, for improve vehicle braking performances provide reliable basis.
Summary of the invention
The technical problem to be solved is for above-mentioned deficiency of the prior art, it is provided that a kind of simulated dual electricity
Machine drive electric automobile regenerative braking performance test stand, its simple in construction, reasonable in design and processing and fabricating and use easy and simple to handle,
Using effect is good, can the regenerative braking operating mode of effective simulated dual motor driven electric car.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of simulated dual motor driven electric car
Regenerative braking performance test stand, it is characterised in that: include horizontal stand, be arranged on the front axle system analog machine that horizontal stand is anterior
Structure, be positioned at the hind axle system simulation mechanism on rear side of described front axle system simulation mechanism and to simulated electric automobile during traveling during
Load be simulated load simulation mechanism, described hind axle system simulation mechanism is arranged on horizontal stand rear portion；
Described hind axle system simulation mechanism includes hind axle, the hind axle drive mechanism being driven described hind axle
With the mechanical brake being arranged on described hind axle, described hind axle includes left half axle and right axle shaft, and described hind axle drives
Mechanism includes the left driving motor being driven described left half axle and the right driving motor being driven described right axle shaft；Institute
State after mechanical brake includes the left back brake disc being arranged on described left half axle and the right side being arranged on described right axle shaft and brake
Dish；Described left driving motor and right driving motor are separately mounted to the horizontal stand left and right sides, described left half axle and the described right side half
Axle is installed on horizontal stand；Described left back brake disc by simulation electric automobile left rear wheel be simulated left back mould
Intend wheel, behind the described right side brake disc by simulation electric automobile off hind wheel be simulated the right side after simulation take turns；Described left driving
Motor and right driving motor form the regenerative braking simulation system of institute's simulation electric automobile；
Described front axle system simulation mechanism includes front axle, the front axle drive mechanism being driven described front axle,
And it is arranged on the left front brake disc of the described front axle left and right sides and right front brake disc；Described front axle drive mechanism is with described
Being in transmission connection by transmission mechanism between front axle, described front axle drive mechanism and described front axle are installed in level
On stand；Described left front brake disc by simulation electric automobile the near front wheel be simulated left front simulation wheel, before the described right side
Brake disc by simulation electric automobile off-front wheel be simulated right front simulation wheel；
Described load simulation mechanism includes left side loading motor and right side loading motor；Described left driving motor and a described left side
One end of semiaxis is in transmission connection, and described left side loading motor is in transmission connection with the other end of described left half axle；Described
Right driving motor is in transmission connection with one end of described right axle shaft, described right side loading motor and the other end of described right axle shaft
It is in transmission connection.
Above-mentioned simulated dual motor driven electric car regenerative braking performance test stand, is characterized in that: described left driving motor
It is permagnetic synchronous motor with right driving motor；Described left side loading motor and right side loading motor are alternating current generator.
Above-mentioned simulated dual motor driven electric car regenerative braking performance test stand, is characterized in that: also include monitoring system,
Described monitoring system includes that host computer, regenerative braking controller, loading motor controller, drive motor controller and front axle drive
Movement controller, described left driving motor and right driving motor are controlled by drive motor controller and both is electric with driving
Machine controller connects, and described left side loading motor and right side loading motor are controlled and both by loading motor controller
Being connected with loading motor controller, described front axle drive mechanism is driven controller to be controlled and itself and front-wheel by front axle
Axle drives controller to connect；Described left driving motor and right driving motor are and simulated electric automobile are carried out electric braking
Motor and both are controlled by regenerative braking controller, and described left driving motor and right driving motor are all and regenerative braking
Controller connects；
Described regenerative braking controller, loading motor controller, drive motor controller and front axle drive controller equal
It is connected with host computer.
Above-mentioned simulated dual motor driven electric car regenerative braking performance test stand, is characterized in that: described monitoring system is also
Including hind axle system rotation speed detection unit, described hind axle system rotation speed detection unit is to described left half axle, described right axle shaft, a left side
The rotation speed detection unit that after rear brake disc or the right side, the rotating speed of brake disc detects in real time, described hind axle system rotation speed detection unit
It is connected with regenerative braking controller.
Above-mentioned simulated dual motor driven electric car regenerative braking performance test stand, is characterized in that: also include charging circuit
And the rechargeable battery being connected with charging circuit, described left driving motor and right driving motor are all connected with charging circuit；Described
Monitoring system also includes the electric power detection unit detected the electricity of rechargeable battery in real time, described electric power detection unit with
Regenerative braking controller connects；Behind described left back brake disc, the right side, brake disc, left front brake disc and right front brake disc are by machine
Movement controller is controlled and it is all connected with mechanical braking controller；Described monitoring system also include left side loading motor and
The motor torque detector unit that detects in real time of output torque of right side loading motor, described motor torque detector unit with again
Raw brake monitor connects.
Above-mentioned simulated dual motor driven electric car regenerative braking performance test stand, is characterized in that: described horizontal stand is
Cube stand, described cube stand includes horizontal base and the cube guardrail being arranged on horizontal base, described cube
Body guardrail is formed by connecting by four vertical rails being laid in respectively above horizontal base surrounding side；
Described left half axle, described right axle shaft are with described front axle all in parallel laying, and described front axle is that level is laid；
Described front axle system simulation mechanism is arranged on the forward upper of horizontal base and it is positioned at rectangle guardrail；A described left side
Driving motor and right driving motor to be installed in the upper back of horizontal base, described left half axle and described right axle shaft are laid in same
On one straight line and both be level lay；Described left half axle is mounted on the institute of horizontal base left upper portion by bearing
Stating on vertical rail, described right axle shaft is mounted on the described vertical rail of horizontal base right upper portion by described bearing
On；
The rear left of described cube guardrail is provided with the Left-side support plate placed for left side loading motor, described cube
The rear right of body guardrail is provided with the Right side support plate placed for right side loading motor；Described Left-side support plate and Right side support
Plate all lays in level and both is positioned at outside cube guardrail.
Meanwhile, the invention also discloses a kind of method step simple, reasonable in design and use easy and simple to handle, realize convenient,
The method of the simulated dual motor driven electric car regenerative braking performance test that using effect is good, it is characterised in that the method bag
Include following steps:
Step one, test parameters set: be set the running parameter of simulated electric automobile by host computer；
Set running parameter include left driving motor and the driving power P 1 of right driving motor, left side loading motor with
Left driving motor and right driving in right side output torque N1 of loading motor, the working speed n0 of described hind axle and braking procedure
Output torque N2 of motor；Wherein, the unit of n0 is r/min；
Step 2, braking mode select: by the braking mode of the simulated electric automobile of upper computer selecting；Institute
The composite braking pattern that the braking mode selected is pure electric braking pattern or mechanical braking combines with electric braking；
Simulation is stably travelled: described host computer is by driving power P 1 set in step one and work before step 3, braking
Make rotating speed n0 and be all sent to drive motor controller, use drive motor controller to left driving motor with right driving motor respectively
It is controlled, makes the power of left driving motor and right driving motor be P1, and turning left driving motor and right driving motor
Speed all adjusts to n0；Afterwards, left driving motor is made all to keep constant with the moment of right driving motor；
Step 4, load loading simulation: output torque N1 set in step one is sent to load by described host computer
Electric machine controller, uses loading motor controller to be respectively controlled left side loading motor with right side loading motor, and by a left side
Side loading motor is all adjusted to N1 with the output torque of right side loading motor；
Step 5, regenerative braking are simulated: described host computer is according to the braking mode selected in step 2, to institute's mould
Intend electric automobile and be braked Work condition analogue；
When the braking mode selected in step 2 is pure electric braking pattern, according to set in step one
Left driving motor and output torque N2 of right driving motor, and by regenerative braking controller, left driving motor is driven electricity with right
Machine is respectively controlled, and makes left driving motor and right driving motor make described left half axle and described right axle shaft respectively respectively
Dynamic；Now, the moment direction of described left driving motor and right driving motor output all with described in step 2 left driving motor and
The moment of right driving motor output is in opposite direction, and the output torque of left driving motor and right driving motor is N2；
Braking mode selected in step 2 is the composite braking mould that mechanical braking combines with electric braking
During formula, described host computer passes braking instruction together at present to mechanical braking controller and regenerative braking controller, passes through mechanical braking
Brake disc behind left back brake disc and the right side is respectively controlled by controller, and by regenerative braking controller to left driving motor with
Right driving motor is respectively controlled, and makes left back brake disc and left driving motor be braked described left half axle, simultaneously simultaneously
After making the right side, described right axle shaft is braked by brake disc and right driving motor simultaneously；Now, described left driving motor and right driving
Motor output moment direction all with described in step 2 left driving motor in opposite direction with the moment that right driving motor exports, and
Left driving motor is N2 with the output torque of right driving motor.
Said method, is characterized in that: by mechanical braking controller to brake disc behind left back brake disc and the right side in step 5
When being respectively controlled, according to the control method of conventional ABS slip control system, brake disc behind left back brake disc and the right side is divided
It is not controlled.
Said method, is characterized in that: described simulated dual motor driven electric car regenerative braking performance test stand also includes
Rechargeable battery that charging circuit is connected with charging circuit and the output torque of left driving motor or right driving motor is carried out reality
Time detection moment inspecting unit, described left driving motor and right driving motor are all connected with charging circuit；Described monitoring system
Also include the electric power detection unit that the electricity of rechargeable battery is detected in real time, described electric power detection unit and regenerative braking
Controller connects；Described moment inspecting unit is connected with regenerative braking controller；
During left driving motor and right driving motor are respectively controlled by step 5 by regenerative braking controller,
Use electric power detection unit that the electricity of rechargeable battery is detected in real time, and by the charge value synchronous driving that detected extremely
Regenerative braking controller；Meanwhile, use described moment inspecting unit that the output torque of left driving motor or right driving motor is divided
Do not detect in real time, and by the moment values synchronous driving that detected to regenerative braking controller；Described regenerative braking controller
Again by the charge value received and moment values synchronous driving to host computer, the described host computer charge value to receiving and moment values
Carry out simultaneous display respectively.
Said method, is characterized in that: described monitoring system also includes detecting the rotating speed of described front axle in real time
Front axle rotation speed detection unit, uses described front axle rotation speed detection unit to drive controller to be connected with front axle；
Stably travel before step 3 is braked carry out in simulation process, in step 4 loading during loading simulation and
Step 5 is carried out in regenerative braking simulation process, all use hind axle system rotation speed detection unit to described left half axle, the described right side
Behind semiaxis, left back brake disc or the right side, the rotating speed of brake disc detects in real time, and by the tachometer value synchronous driving that detected to again
Raw brake monitor, described regenerative braking controller again by the tachometer value synchronous driving that receives to host computer；
Stably travel before step 3 is braked carry out in simulation process, in step 4 loading during loading simulation and
Step 5 is carried out in regenerative braking simulation process, all use the described front axle rotation speed detection unit rotating speed to described front axle
Detecting in real time, and tachometer value synchronous driving to the front axle detected drives controller, described front axle drives and controls
Device again by the tachometer value synchronous driving that receives to host computer；Described front axle drives controller to described front axle drive mechanism
Being controlled, the rotating speed making described front axle is consistent with the tachometer value that now hind axle system rotation speed detection unit is detected.
The present invention compared with prior art has the advantage that
1, the electric automobile regenerative braking performance test stand simple in construction that used, reasonable in design and processing and fabricating is easy,
Input cost is relatively low.
2, the electric automobile regenerative braking performance test stand used uses easy and simple to handle and using effect good, practical value
Height, significantly simplifies simulated electric automobile, only by front axle system simulation mechanism, hind axle system simulation mechanism and described
Load simulation mechanism can realize the true simulation to simulated electric automobile.Further, left driving motor and right driving group of motors
Become the regenerative braking simulation system of institute simulation electric automobile, can the regenerative braking work of effective simulated dual motor driven electric car
Condition.
During actually used, this electric automobile regenerative braking performance test stand is used can simulate electric automobile to be driven
Start building condition, the mechanical braking operating mode of institute's simulation electric automobile, various loads of institute's simulation electric automobile (include the road on different road surface
Face resistance, wind resistance and load-carrying etc.) and the regenerative braking operating mode of institute's simulation electric automobile carry out mould effective, true respectively
Intend, and can in simulated electric automobile process of regenerative braking produced energy accurate, monitor in real time.
3, method step is simple, reasonable in design and realization is convenient, using effect is good, at designed electric automobile regenerative braking
On the basis of performance test stand, it is braked according to selected braking mode.Further, two kinds of regenerative braking moulds can be completed
The braking simulated test of formula, two kinds of braking mode are respectively pure electric braking pattern and tie mutually with electric braking with mechanical braking
The composite braking pattern closed, occupation mode is flexible, perfect in shape and function, and result of the test accurately, reliably, carries for improving vehicle braking performances
For reliable basis.
In sum, the present invention reasonable in design and use easy and simple to handle, using effect good, can effectively simulate Dual-motors Driving
The regenerative braking operating mode of electric automobile.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of electric automobile regenerative braking performance test stand of the present invention.
Fig. 2 is the side portion structure schematic diagram of electric automobile regenerative braking performance test stand of the present invention.
Fig. 3 is the front portion structure figure of electric automobile regenerative braking performance test stand of the present invention.
Fig. 4 is the top view of Fig. 2.
Fig. 5 is the schematic block circuit diagram of electric automobile regenerative braking performance test stand of the present invention.
Fig. 6 is the method flow block diagram of electric automobile regenerative braking method for testing performance of the present invention.
Description of reference numerals:
Brake disc behind 1 right side；2 first shaft joints；3 the 3rd shaft joints；
4 left back brake discs；5 the 4th shaft joints；Loading motor on the left of in the of 6；
7 left driving motors；8 right driving motors；9 alternating-current variable frequency motors；
10 driving wheels；11 left front brake discs；12 driven pulleys；
13 the 5th shaft couplings；14 the 6th shaft couplings；15 right front brake discs；
16 horizontal stands；16-1 horizontal base 16-2 cube guardrail
Loading motor on the right side of in the of 17；18 second shaft joints；19 loading motor controllers；
20 drive motor controller；21 front axles drive controller；
22 regenerative braking controllers；23 hind axle system rotation speed detection unit；
24 host computers；25 motor torque detector units；
26 charging circuits；27 rechargeable batteries；28 electric power detection unit；
29 Left-side support plates；30 Right side support plates；31 mechanical braking controllers.
Detailed description of the invention
As shown in Figure 1, Figure 2, the simulated dual motor driven electric car regenerative braking performance test stand shown in Fig. 3, Fig. 4 and Fig. 5,
The front axle system simulation mechanism that including horizontal stand 16, is arranged on horizontal stand 16 front portion, it is positioned at described front axle system analog machine
Hind axle system simulation mechanism on rear side of structure and the load simulation to the load simulation during simulated electric automobile during traveling
Mechanism, described hind axle system simulation mechanism is arranged on horizontal stand 16 rear portion；
Described hind axle system simulation mechanism include hind axle, the hind axle drive mechanism that described hind axle is driven and
Being arranged on the mechanical brake on described hind axle, described hind axle includes left half axle and right axle shaft, and described hind axle drives machine
Structure includes the left driving motor 7 being driven described left half axle and the right driving motor 8 being driven described right axle shaft；Institute
Brake after stating the mechanical brake left back brake disc 4 including being arranged on described left half axle and the right side being arranged on described right axle shaft
Dish 1；Described left driving motor 7 and right driving motor 8 are separately mounted to horizontal stand 16 left and right sides, described left half axle and described
Right axle shaft is installed on horizontal stand 16；Described left back brake disc 4 by simulation electric automobile left rear wheel be simulated
Left back simulation wheel, behind the described right side brake disc 1 for simulation electric automobile off hind wheel be simulated the right side after simulate take turns；Institute
State left driving motor 7 and right driving motor 8 forms the regenerative braking simulation system of institute's simulation electric automobile；
Described front axle system simulation mechanism includes front axle, the front axle drive mechanism being driven described front axle,
And it is arranged on left front brake disc 11 and the right front brake disc 15 of the described front axle left and right sides；Described front axle drive mechanism
And being in transmission connection by transmission mechanism between described front axle, described front axle drive mechanism and described front axle are respectively mounted
On horizontal stand 16；Described left front brake disc 11 by simulation electric automobile the near front wheel be simulated left front simulation
Wheel, described right front brake disc 15 for simulation electric automobile off-front wheel simulation right front simulation take turns；
Described load simulation mechanism includes left side loading motor 6 and right side loading motor 17；Described left driving motor 7 and institute
The one end stating left half axle is in transmission connection, and described left side loading motor 6 is in transmission connection with the other end of described left half axle；
Described right driving motor 8 is in transmission connection with one end of described right axle shaft, described right side loading motor 17 and described right axle shaft
The other end be in transmission connection.
In the present embodiment, described left driving motor 7 and right driving motor 8 are permagnetic synchronous motor.
Time actually used, described left driving motor 7 and right driving motor 8 can also use other type of can be to being simulated
Electric automobile carries out the motor of electric braking.
In the present embodiment, described left side loading motor 6 and right side loading motor 17 are alternating current generator.
As it is shown in figure 5, present invention additionally comprises monitoring system, described monitoring system includes that host computer 24, regenerative braking control
Device 22, loading motor controller 19, drive motor controller 20 and front axle drive controller 21, described left driving motor 7 He
Right driving motor 8 is controlled by drive motor controller 20 and both is connected with drive motor controller 20, a described left side
Side loading motor 6 and right side loading motor 17 are controlled by loading motor controller 19 and both controls with loading motor
Device 19 connects, and described front axle drive mechanism is driven controller 21 to be controlled by front axle and it drives controller with front axle
21 connect；Described left driving motor 7 and right driving motor 8 be simulated electric automobile is carried out electric braking motor and
Both is controlled by regenerative braking controller 22, and described left driving motor 7 and right driving motor 8 all control with regenerative braking
Device 22 connects；
Described regenerative braking controller 22, loading motor controller 19, drive motor controller 20 and front axle drive control
Device 21 processed is all connected with host computer 24.
Further, described monitoring system also includes hind axle system rotation speed detection unit 23, described hind axle system Rotating speed measring list
Unit 23 be the rotating speed of brake disc 1 behind described left half axle, described right axle shaft, left back brake disc 4 or the right side is detected in real time turn
Speed detector unit, described hind axle system rotation speed detection unit 23 is connected with regenerative braking controller 22.
In the present embodiment, described hind axle system rotation speed detection unit 23 be to behind left back brake disc 4 or the right side brake disc 1 turn
The rotation speed detection unit that speed detects in real time.
In the present embodiment, described monitoring system also includes left side loading motor 6 and the power output of right side loading motor 17
The motor torque detector unit 25 that square detects in real time, described motor torque detector unit 25 is with regenerative braking controller 22 even
Connect.
In the present embodiment, present invention additionally comprises charging circuit 26 and the rechargeable battery 27 being connected with charging circuit 26, institute
State left driving motor 7 and right driving motor 8 is all connected with charging circuit 26；Described monitoring system also includes rechargeable battery 27
The electric power detection unit 28 that detects in real time of electricity, described electric power detection unit 28 is connected with regenerative braking controller 22.
Actual adding man-hour, described horizontal stand 16 is cube stand, and described cube stand includes horizontal base 16-1
Level it is laid in respectively by four with the cube guardrail 16-2 being arranged on horizontal base 16-1, described cube guardrail 16-2
Vertical rail above base 16-1 surrounding side is formed by connecting；
Described left half axle, described right axle shaft are with described front axle all in parallel laying, and described front axle is that level is laid；
Described front axle system simulation mechanism is arranged on the forward upper of horizontal base 16-1 and it is positioned at rectangle guardrail 16-2
In；Described left driving motor 7 and right driving motor 8 are installed in the upper back of horizontal base 16-1, described left half axle and institute
On the same line and both is that level is laid to state right axle shaft laying；Described left half axle is mounted on horizontal base by bearing
On the described vertical rail of seat 16-1 left upper portion, it is right that described right axle shaft is mounted on horizontal base 16-1 by described bearing
On the described vertical rail of upper lateral part；
The rear left of described cube guardrail 16-2 is provided with the Left-side support plate 29 placed for left side loading motor 6,
The rear right of described cube guardrail 16-2 is provided with the Right side support plate 30 placed for right side loading motor 17；Described left side
Gripper shoe 29 and Right side support plate 30 all lay in level and both is positioned at outside cube guardrail 16-2.
In the present embodiment, described left half axle and described right axle shaft are symmetrically laid.
In the present embodiment, described horizontal base 16-1 is rectangular base.
Further, described left half axle and described right axle shaft are all laid along the width of horizontal base 16-1.
In the present embodiment, described Left-side support plate 29 and Right side support plate 30 are rectangular flat, described cube guardrail
The rear left of 16-2 is provided with the left side skewed horizontal load bar being supported Left-side support plate 29, and cube guardrail 16-2
Rear right is provided with the right side skewed horizontal load bar being supported Right side support plate 30.
In the present embodiment, described front axle drive mechanism is alternating-current variable frequency motor 9, and described transmission mechanism is pulley drive
Mechanism.
During actual installation, described alternating-current variable frequency motor 9 is installed on horizontal base 16-1, and, described alternating-current variable frequency power
Machine 9 is on rear side of described front axle.
In the present embodiment, behind described left back brake disc 4, the right side, brake disc 1, left front brake disc 11 and right front brake disc 15 are
Hydraulic brake, behind described left back brake disc 4, the right side, brake disc 1, left front brake disc 11 and right front brake disc 15 are by machinery
Brake monitor 31 is controlled and it is all connected with mechanical braking controller 31.Further, described mechanical braking controller 31 with
Host computer 24 connects.
During actual installation, described left driving motor 7 and right driving motor 8 are symmetrically laid, described left side loading motor 6 He
Right side loading motor 17 is symmetrically laid, and left driving motor 7, right driving motor 8, left side loading motor 6, right side loading electricity
Machine 17 and alternating-current variable frequency motor 9 are all laid in level.
In the present embodiment, the described power output shaft of right driving motor 8 and the power output shaft of right side loading motor 17 and
Behind the right side, brake disc 1 is all laid in coaxial, and behind the described right side, brake disc 1 is between right driving motor 8 and right side loading motor 17；Institute
Stating right axle shaft and include the first shaft joint 2 and the second shaft joint 18, the power output shaft of described right driving motor 8 passes through the first connecting shaft
Behind device 2 and the right side, brake disc 1 carries out coaxially connected, the power output shaft of described right side loading motor 17 by the second shaft joint 18 with
Behind the right side, brake disc 1 carries out coaxially connected.
Correspondingly, the described power output shaft of left driving motor 7 and the power output shaft of left side loading motor 6 and left back system
Moving plate 4 is all laid in coaxial, and described left back brake disc 4 is between left driving motor 7 and left side loading motor 6；A described left side half
Axle includes the 3rd shaft joint 3 and the 4th shaft joint 5, and the power output shaft of described left driving motor 7 is by the 3rd shaft joint 3 and a left side
Rear brake disc 4 carries out coaxially connected, and the power output shaft of described left side loading motor 6 is by the 4th shaft joint 5 and left back braking
Dish 4 carries out coaxially connected.
In the present embodiment, described front axle includes the 5th shaft coupling 12 and the 6th shaft coupling 14, described pulley drive machine
Structure includes driving wheel 10 and the driven pulley 13 being attached by belt with driving wheel 10, and described driving wheel 10 is coaxially mounted to hand over
On the power output shaft of stream variable-frequency motor 9, described left front brake disc 11 carries out coaxial by the 5th shaft coupling 12 with driven pulley 13
Connecting, described right front brake disc 15 carries out coaxially connected by the 6th shaft coupling 14 with driven pulley 13.
During actual installation, described horizontal base 16-1 is provided with to brake disc 1, left front braking behind left back brake disc 4, the right side
The bracing frame that dish 11 and right front brake disc 15 are supported respectively, and brake disc 1, left front brake disc behind left back brake disc 4, the right side
11 and right front brake disc 15 be all attached by bearing with support frame as described above support.
In the present embodiment, described drive motor controller 20 and front axle drive controller 21 can also use same control
Coremaking sheet.
As shown in the above, simulated electric automobile is significantly simplified by the present invention, only by described front axle system
It is true that simulation mechanism, described hind axle system simulation mechanism and described load simulation mechanism can realize simulated electric automobile
Simulation.Wherein, behind described left back brake disc 4, the right side brake disc 1, left front brake disc 11 and right front brake disc 15 respectively to being simulated
The left rear wheel of electric automobile, off hind wheel, the near front wheel and off-front wheel are simulated respectively.Further, described left driving motor 7 and the right side are driven
Dynamic motor 8 forms the regenerative braking simulation system of institute's simulation electric automobile.
During actually used, described hind axle by the drive shaft of simulation electric automobile, pass through drive motor controller
20 pairs of left driving motors 7 and right driving motor 8 are controlled, and drive the described left half axle in described hind axle and described right axle shaft
Rotate；Meanwhile, drive controller 21 to control alternating-current variable frequency motor 9 by front axle and drive described front axle to rotate,
Thus realize the driving operating mode to simulated electric automobile and be simulated；
Further, by mechanical braking controller 31 to brake disc 1, left front brake disc 11 and the right side behind left back brake disc 4, the right side
Front brake disc 15 is respectively controlled, it is achieved be simulated the mechanical braking operating mode of simulated electric automobile；
, by loading motor controller 19, left side loading motor 6 and right side loading motor 17 are respectively controlled meanwhile,
Realize simulated electric automobile loads the process being simulated；
It addition, left driving motor 7 and right driving motor 8 are respectively controlled by regenerative braking controller 22, make a left side
Drive motor 7 and right driving motor 8 produce opposing torque and simulated electric automobile carries out electric braking, thus realize institute
The regenerative braking operating mode of simulation electric automobile is simulated；Further, the regenerative braking operating mode of simulated electric automobile is carried out mould
During plan, described left driving motor 7 and right driving motor 8 work in generating state, are driven on a left side now by charging circuit 26
The electric energy that dynamic motor 7 and right driving motor 8 produce stores to rechargeable battery 27, it is achieved to simulated electric automobile regeneration system
The energy regenerating of dynamic process；Further, by electric power detection unit 28, the electricity of rechargeable battery 27 is detected in real time, it is achieved
To in simulated electric automobile process of regenerative braking produced energy accurate, monitor in real time.
During actually used, during using described electric automobile regenerative braking performance test stand can realize smooth deceleration
Regenerative braking Work condition analogue and turning moderating process in regenerative braking Work condition analogue.Wherein, during to smooth deceleration
When regenerative braking operating mode is simulated, use mechanical braking controller 31 that left front brake disc 11 and right front brake disc 15 are entered respectively
Row controls, and makes left front brake disc 11 identical with the brake force of right front brake disc 15；To the regenerative braking work in turning moderating process
When condition is simulated, uses mechanical braking controller 31 that left front brake disc 11 and right front brake disc 15 are respectively controlled, make
Left front brake disc 11 is different with the brake force of right front brake disc 15, specifically make the brake force of turning side rotation dish more than away from
The brake force of turning side rotation dish.
Meanwhile, described electric automobile regenerative braking performance test stand is used can to realize the regenerative braking operating mode mould on different road surface
Intend, only need to change the value size of left side loading motor 6 and output torque N1 of right side loading motor 17, it is achieved conveniently and
Using effect is good.
A kind of electric automobile regenerative braking method for testing performance as shown in Figure 6, comprises the following steps:
Step one, test parameters set: be set the running parameter of simulated electric automobile by host computer 24；
Set running parameter includes left driving motor 7 and the driving power P 1 of right driving motor 8, left side loading motor
6 with output torque N1 of right side loading motor 17, the working speed n0 of described hind axle and braking procedure left driving motor 7 with
Output torque N2 of right driving motor 8；Wherein, the unit of n0 is r/min；
Step 2, braking mode select: selected the braking mode of institute's simulation electric automobile by host computer 24；
The composite braking pattern that selected braking mode is pure electric braking pattern or mechanical braking combines with electric braking；
Simulation is stably travelled: described host computer 24 is by driving power P 1 He set in step one before step 3, braking
Working speed n0 is all sent to drive motor controller 20, uses drive motor controller 20 to left driving motor 7 and right driving
Motor 8 is respectively controlled, and makes left driving motor 7 be P1 with the power of right driving motor 8, and by left driving motor 7 with right
The rotating speed driving motor 8 all adjusts to n0；Afterwards, left driving motor 7 is made all to keep constant with the moment of right driving motor 8；
Step 4, load loading simulation: output torque N1 set in step one is sent to add by described host computer 24
Carry electric machine controller 19, use loading motor controller 19 that left side loading motor 6 is controlled respectively with right side loading motor 17
System, and the output torque of left side loading motor 6 with right side loading motor 17 is all adjusted to N1；
Step 5, regenerative braking are simulated: described host computer 24 is according to the braking mode selected in step 2, to institute
Simulation electric automobile is braked Work condition analogue；
When the braking mode selected in step 2 is pure electric braking pattern, according to set in step one
Left driving motor 7 and output torque N2 of right driving motor 8, and by regenerative braking controller 22 to left driving motor 7 and the right side
Drive motor 8 to be respectively controlled, make left driving motor 7 and right driving motor 8 respectively to described left half axle and described right axle shaft
It is braked respectively；Now, the moment direction of described left driving motor 7 and the output of right driving motor 8 all with described in step 2
The moment that left driving motor 7 exports with right driving motor 8 is in opposite direction, and the power output of left driving motor 7 and right driving motor 8
Square is N2；
Braking mode selected in step 2 is the composite braking mould that mechanical braking combines with electric braking
During formula, described host computer 24 passes braking instruction together at present to mechanical braking controller 31 and regenerative braking controller 22, passes through machine
Brake disc 1 behind left back brake disc 4 and the right side is respectively controlled by tool brake monitor 31, and right by regenerative braking controller 22
Left driving motor 7 is respectively controlled with right driving motor 8, makes left back brake disc 4 and left driving motor 7 simultaneously to a described left side half
Axle is braked, and after making the right side, described right axle shaft is braked by brake disc 1 and right driving motor 8 simultaneously simultaneously；Now, a described left side
Drive moment direction all left driving motor 7 and the right driving motor 8 with described in step 2 of motor 7 and the output of right driving motor 8
The moment of output is in opposite direction, and the output torque of left driving motor 7 and right driving motor 8 is N2.
In the present embodiment, the rotating speed of left driving motor 7 with right driving motor 8 is all adjusted to n0 by step 3, also needs
Using hind axle system rotation speed detection unit 23 is to brake disc 1 behind described left half axle, described right axle shaft, left back brake disc 4 or the right side
Rotating speed detect in real time, and by the tachometer value synchronous driving that detected to regenerative braking controller 22；Treat that hind axle system turns
The speed tachometer value that detected of detector unit 23 keep constant after, then carry out step 4.
In the present embodiment, in step 5 by mechanical braking controller 31 to brake disc 1 behind left back brake disc 4 and the right side respectively
When being controlled, according to the control method of conventional ABS slip control system, to brake disc 1 behind left back brake disc 4 and the right side respectively
It is controlled.Described mechanical braking controller 31 is the controller of ABS slip control system.
In the present embodiment, described simulated dual motor driven electric car regenerative braking performance test stand also includes left driving
The moment inspecting unit that the output torque of motor 7 or right driving motor 8 detects in real time, described left driving motor 7 and the right side are driven
Dynamic motor 8 is all connected with charging circuit 26；Described monitoring system also includes detecting the electricity of rechargeable battery 27 in real time
Electric power detection unit 28, described electric power detection unit 28 is connected with regenerative braking controller 22；Described moment inspecting unit with
Regenerative braking controller 22 connects；
Left driving motor 7 was respectively controlled with right driving motor 8 by step 5 by regenerative braking controller 22
Cheng Zhong, uses electric power detection unit 28 to detect the electricity of rechargeable battery 27 in real time, and by the charge value that detected with
Step is sent to regenerative braking controller 22；Meanwhile, use described moment inspecting unit to left driving motor 7 or right driving motor 8
Output torque detect the most in real time, and by the moment values synchronous driving that detected to regenerative braking controller 22；Described
Regenerative braking controller 22 again by the charge value received and moment values synchronous driving to host computer 24, described host computer 24 is right
The charge value received and moment values carry out simultaneous display respectively.
Time actually used, described host computer 24, can synchronism output charge value according to received charge value and moment values
Curve with moment values change.
In the present embodiment, described monitoring system also includes that the front axle detected the rotating speed of described front axle in real time turns
Speed detector unit, uses described front axle rotation speed detection unit to drive controller 21 to be connected with front axle；
Stably travel before step 3 is braked carry out in simulation process, in step 4 loading during loading simulation and
Step 5 is carried out in regenerative braking simulation process, all use hind axle system rotation speed detection unit 23 to described left half axle, described
Behind right axle shaft, left back brake disc 4 or the right side, the rotating speed of brake disc 1 detects in real time, and the tachometer value synchronous driving that will be detected
To regenerative braking controller 22, described regenerative braking controller 22 again by the tachometer value synchronous driving that receives to host computer 24；
Stably travel before step 3 is braked carry out in simulation process, in step 4 loading during loading simulation and
Step 5 is carried out in regenerative braking simulation process, all use the described front axle rotation speed detection unit rotating speed to described front axle
Detecting in real time, and to front axle, the tachometer value synchronous driving detected is driven controller 21, described front axle drives control
Device 21 processed again by the tachometer value synchronous driving that receives to host computer 24；Described front axle drives controller 21 to described front axle
Drive mechanism is controlled, and makes the rotating speed of described front axle and the tachometer value that now hind axle system rotation speed detection unit 23 is detected
Unanimously.
In the present embodiment, when carrying out the setting of electric automobile running parameter in step one, set running parameter also includes
The rotating speed n of described hind axle after having braked；Wherein, 0 ＜ n ＜ n0；The unit of n is r/min；
Step 5 is carried out in regenerative braking simulation process, also need to use hind axle system rotation speed detection unit 23 for right
Behind described left half axle, described right axle shaft, left back brake disc 4 or the right side, the rotating speed of brake disc 1 detects in real time, and will be detected
Tachometer value synchronous driving is to regenerative braking controller 22；The tachometer value received is synchronized to pass by described regenerative braking controller 22 again
Delivering to host computer 24, described host computer 24 judges to brake whether simulation process completes according to the tachometer value received, and works as trailing wheel
When the tachometer value that axle system rotation speed detection unit 23 is detected is n, the braking simulation process of institute's simulation electric automobile completes.
During actually used, in step one, the driving power P 1 to left driving motor 7 with right driving motor 8 is set
Time, it is set according to the rated power of simulated electric automobile, and the driving merit of left driving motor 7 and right driving motor 8
Rate P1 is all identical with the rated power of institute simulation electric automobile.The working speed n0 of described hind axle is according to simulated electric automobile
Normal speed per hour be set.Output torque N1 of described left side loading motor 6 and right side loading motor 17 is according to being simulated electricity
The pavement behavior of electrical automobile institute track is set, and is i.e. set according to surface resistance.
Time actually used, the value of described P1, N1, n0, N2 and n is and is manually set value, easy and simple to handle, and P1, N1,
The value of n0, N2 and n adjusts simplicity.
The above, be only presently preferred embodiments of the present invention, not impose any restrictions the present invention, every according to the present invention
Any simple modification, change and the equivalent structure change that above example is made by technical spirit, all still falls within skill of the present invention
In the protection domain of art scheme.
Claims (10)
1. a simulated dual motor driven electric car regenerative braking performance test stand, it is characterised in that: include horizontal stand
(16), it is arranged on the anterior front axle system simulation mechanism of horizontal stand (16), is positioned on rear side of described front axle system simulation mechanism
Hind axle system simulation mechanism and the load simulation mechanism that the load during simulated electric automobile during traveling is simulated, described
Hind axle system simulation mechanism is arranged on horizontal stand (16) rear portion；
Described hind axle system simulation mechanism includes hind axle, the hind axle drive mechanism being driven described hind axle and installation
Mechanical brake on wheel shaft in the rear, described hind axle includes left half axle and right axle shaft, described hind axle drive mechanism bag
Include the left driving motor (7) that described left half axle is driven and the right driving motor (8) that described right axle shaft is driven；Institute
Make after stating the left back brake disc (4) that mechanical brake includes being arranged on described left half axle and the right side being arranged on described right axle shaft
Moving plate (1)；Described left driving motor (7) and right driving motor (8) are separately mounted to horizontal stand (16) left and right sides, a described left side
Semiaxis and described right axle shaft are installed on horizontal stand (16)；Described left back brake disc (4) by simulation electric automobile
The left back simulation wheel that left rear wheel is simulated, behind the described right side brake disc (1) by the off hind wheel of simulation electric automobile carry out mould
Simulation wheel behind the right side intended；Described left driving motor (7) and right driving motor (8) form the regenerative braking mould of institute's simulation electric automobile
Plan system；
Described front axle system simulation mechanism includes front axle, the front axle drive mechanism being driven described front axle, and
It is arranged on left front brake disc (11) and the right front brake disc (15) of the described front axle left and right sides；Described front axle drive mechanism with
Being in transmission connection by transmission mechanism between described front axle, described front axle drive mechanism and described front axle are installed in
On horizontal stand (16)；Described left front brake disc (11) by simulation electric automobile the near front wheel be simulated left front simulation
Wheel, described right front brake disc (15) for simulation electric automobile off-front wheel simulation right front simulation take turns；
Described load simulation mechanism includes left side loading motor (6) and right side loading motor (17)；Described left driving motor (7) with
One end of described left half axle is in transmission connection, and described left side loading motor (6) carries out transmission with the other end of described left half axle
Connect；Described right driving motor (8) is in transmission connection with one end of described right axle shaft, described right side loading motor (17) and institute
The other end stating right axle shaft is in transmission connection.
2. according to the simulated dual motor driven electric car regenerative braking performance test stand described in claim 1, it is characterised in that:
Described left driving motor (7) and right driving motor (8) are permagnetic synchronous motor；Described left side loading motor (6) and right side add
Carry motor (17) and be alternating current generator.
3., according to the simulated dual motor driven electric car regenerative braking performance test stand described in claim 1 or 2, its feature exists
In: also include that monitoring system, described monitoring system include that host computer (24), regenerative braking controller (22), loading motor control
Device (19), drive motor controller (20) and front axle drive controller (21), described left driving motor (7) and right driving motor
(8) being controlled by drive motor controller (20) and both is connected with drive motor controller (20), described left side adds
Carry motor (6) and right side loading motor (17) is controlled by loading motor controller (19) and both and loading motor control
Device processed (19) connects, and described front axle drive mechanism is driven controller (21) to be controlled by front axle and it drives with front axle
Controller (21) connects；Described left driving motor (7) and right driving motor (8) are and electrically make simulated electric automobile
Dynamic motor and both are controlled by regenerative braking controller (22), described left driving motor (7) and right driving motor
(8) all it is connected with regenerative braking controller (22)；
Described regenerative braking controller (22), loading motor controller (19), drive motor controller (20) and front axle drive
Controller (21) is all connected with host computer (24).
4. according to the simulated dual motor driven electric car regenerative braking performance test stand described in claim 3, it is characterised in that:
Described monitoring system also includes hind axle system rotation speed detection unit (23), and described hind axle system rotation speed detection unit (23) is for institute
The Rotating speed measring that after stating left half axle, described right axle shaft, left back brake disc (4) or the right side, the rotating speed of brake disc (1) detects in real time
Unit, described hind axle system rotation speed detection unit (23) is connected with regenerative braking controller (22).
5. according to the simulated dual motor driven electric car regenerative braking performance test stand described in claim 4, it is characterised in that:
Also include charging circuit (26) and the rechargeable battery (27) being connected with charging circuit (26), described left driving motor (7) and the right side
Motor (8) is driven all to be connected with charging circuit (26)；Described monitoring system also includes carrying out the electricity of rechargeable battery (27)
The electric power detection unit (28) of detection in real time, described electric power detection unit (28) is connected with regenerative braking controller (22)；Described
Behind left back brake disc (4), the right side, brake disc (1), left front brake disc (11) and right front brake disc (15) are by mechanical braking controller
(31) it is controlled and it is all connected with mechanical braking controller (31)；Described monitoring system also includes left side loading motor
And the motor torque detector unit (25) that detects in real time of the output torque of right side loading motor (17), described motor force (6)
Square detector unit (25) is connected with regenerative braking controller (22).
6., according to the simulated dual motor driven electric car regenerative braking performance test stand described in claim 1 or 2, its feature exists
In: described horizontal stand (16) is cube stand, and described cube stand includes horizontal base (16-1) and is arranged on level
Cube guardrail (16-2) on base (16-1), described cube guardrail (16-2) is laid in horizontal base respectively by four
(16-1) vertical rail above surrounding side is formed by connecting；
Described left half axle, described right axle shaft are with described front axle all in parallel laying, and described front axle is that level is laid；
Described front axle system simulation mechanism is arranged on the forward upper of horizontal base (16-1) and it is positioned at rectangle guardrail (16-2)
In；Described left driving motor (7) and right driving motor (8) are installed in the upper back of horizontal base (16-1), a described left side half
Axle and described right axle shaft are laid on the same line and both is that level is laid；Described left half axle is mounted on by bearing
On the described vertical rail of horizontal base (16-1) left upper portion, described right axle shaft is mounted on horizontal base by described bearing
On the described vertical rail of seat (16-1) right upper portion；
The rear left of described cube guardrail (16-2) is provided with the Left-side support plate placed for left side loading motor (6)
(29), the rear right of described cube guardrail (16-2) is provided with the Right side support plate placed for right side loading motor (17)
(30)；Described Left-side support plate (29) and Right side support plate (30) all lay in level and both is positioned at cube guardrail (16-
2) outside.
7. utilizing the method that testing stand as claimed in claim 1 carries out regenerative braking performance test to electric automobile, it is special
Levying and be, the method comprises the following steps:
Step one, test parameters set: be set the running parameter of simulated electric automobile by host computer (24)；
Set running parameter includes left driving motor (7) and the driving power P 1 of right driving motor (8), left side loading motor
(6) the left driving electricity with output torque N1 of right side loading motor (17), the working speed n0 of described hind axle and braking procedure
Machine (7) and output torque N2 of right driving motor (8)；Wherein, the unit of n0 is r/min；
Step 2, braking mode select: selected the braking mode of institute's simulation electric automobile by host computer (24)；Institute
The composite braking pattern that the braking mode selected is pure electric braking pattern or mechanical braking combines with electric braking；
Simulation is stably travelled: described host computer (24) is by driving power P 1 set in step one and work before step 3, braking
Make rotating speed n0 and be all sent to drive motor controller (20), use drive motor controller (20) to left driving motor (7) with right
Drive motor (8) to be respectively controlled, make left driving motor (7) be P1 with the power of right driving motor (8), and by left driving
Motor (7) all adjusts to n0 with the rotating speed of right driving motor (8)；Afterwards, left driving motor (7) and right driving motor (8) are made
Moment all keeps constant；
Step 4, load loading simulation: output torque N1 set in step one is sent to load by described host computer (24)
Electric machine controller (19), uses loading motor controller (19) to left side loading motor (6) with right side loading motor (17) respectively
It is controlled, and the output torque of left side loading motor (6) Yu right side loading motor (17) is all adjusted to N1；
Step 5, regenerative braking are simulated: described host computer (24) is according to the braking mode selected in step 2, to institute's mould
Intend electric automobile and be braked Work condition analogue；
When the braking mode selected in step 2 is pure electric braking pattern, drive according to a left side set in step one
Dynamic motor (7) and output torque N2 of right driving motor (8), and by regenerative braking controller (22) to left driving motor (7)
Be respectively controlled with right driving motor (8), make left driving motor (7) and right driving motor (8) respectively to described left half axle and
Described right axle shaft is braked respectively；Now, described left driving motor (7) is equal with the moment direction that right driving motor (8) exports
Left driving motor (7) is in opposite direction with the moment that right driving motor (8) exports with described in step 2, and left driving motor (7)
It is N2 with the output torque of right driving motor (8)；
When the braking mode selected in step 2 is the composite braking pattern that mechanical braking combines with electric braking,
Described host computer (24) passes braking instruction together at present to mechanical braking controller (31) and regenerative braking controller (22), passes through machine
Brake disc (1) behind left back brake disc (4) and the right side is respectively controlled by tool brake monitor (31), and is controlled by regenerative braking
Left driving motor (7) is respectively controlled by device (22) with right driving motor (8), makes left back brake disc (4) and left driving motor
(7) described left half axle is braked simultaneously, makes behind the right side brake disc (1) and right driving motor (8) simultaneously to the described right side half simultaneously
Axle is braked；Now, the moment direction that described left driving motor (7) and right driving motor (8) export all with institute in step 2
State left driving motor (7) in opposite direction with the moment that right driving motor (8) exports, and left driving motor (7) and right driving motor
(8) output torque is N2.
The most in accordance with the method for claim 7, it is characterised in that: by mechanical braking controller (31) to left back in step 5
When after brake disc (4) and the right side, brake disc (1) is respectively controlled, according to the control method of conventional ABS slip control system, right
After left back brake disc (4) and the right side, brake disc (1) is respectively controlled.
9. according to the method described in claim 7 or 8, it is characterised in that: described simulated dual motor driven electric car regeneration system
Dynamic performance test stand also includes rechargeable battery (27) that charging circuit (26) is connected with charging circuit (26) and drives electricity to left
The moment inspecting unit that the output torque of machine (7) or right driving motor (8) detects in real time, described left driving motor (7) and
Right driving motor (8) is all connected with charging circuit (26)；Described monitoring system also includes entering the electricity of rechargeable battery (27)
The electric power detection unit (28) of row detection in real time, described electric power detection unit (28) is connected with regenerative braking controller (22)；Institute
State moment inspecting unit to be connected with regenerative braking controller (22)；
Left driving motor (7) is respectively controlled with right driving motor (8) by step 5 by regenerative braking controller (22)
During, use electric power detection unit (28) that the electricity of rechargeable battery (27) is detected in real time, and the electricity that will be detected
Value synchronous driving is to regenerative braking controller (22)；Meanwhile, use described moment inspecting unit to left driving motor (7) or the right side
The output torque driving motor (8) detects the most in real time, and by the moment values synchronous driving that detected to regenerative braking control
Device processed (22)；Described regenerative braking controller (22) again by the charge value received and moment values synchronous driving to host computer
(24), the described host computer (24) charge value to receiving and moment values carry out simultaneous display respectively.
10. according to the method described in claim 7 or 8, it is characterised in that: described monitoring system also includes described front axle
The front axle rotation speed detection unit that rotating speed detects in real time, uses described front axle rotation speed detection unit to drive control with front axle
Device processed (21) connects；
Stably travel before step 3 is braked and carry out in simulation process, in step 4 loading loading simulation process neutralization procedure
Carry out in five in regenerative braking simulation process, all use hind axle system rotation speed detection unit (23) to described left half axle, the described right side
Behind semiaxis, left back brake disc (4) or the right side, the rotating speed of brake disc (1) detects in real time, and synchronizes to pass by the tachometer value detected
Deliver to regenerative braking controller (22), described regenerative braking controller (22) again by the tachometer value synchronous driving that receives to the most upper
Machine (24)；
Stably travel before step 3 is braked and carry out in simulation process, in step 4 loading loading simulation process neutralization procedure
Carry out in five in regenerative braking simulation process, all use described front axle rotation speed detection unit that the rotating speed of described front axle is carried out
Detection in real time, and tachometer value synchronous driving to the front axle detected is driven controller (21), described front axle drives and controls
Device (21) is again by the tachometer value synchronous driving that receives to host computer (24)；Described front axle drives controller (21) to before described
Axle driving mechanism is controlled, and makes the rotating speed of described front axle and now hind axle system rotation speed detection unit (23) be detected
Tachometer value is consistent.
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| CN113670499A (en) * | 2021-09-08 | 2021-11-19 | 西安建筑科技大学 | Braking efficiency test device and method for electric wheel driven vehicle |
| CN117629657A (en) * | 2023-11-28 | 2024-03-01 | 长安大学 | Reaction type braking detection table and detection method for electric automobile with MPC (MPC) stable control |
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