CN109738201A - The test method of vehicle dynamic brake performance - Google Patents
The test method of vehicle dynamic brake performance Download PDFInfo
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- CN109738201A CN109738201A CN201811632529.XA CN201811632529A CN109738201A CN 109738201 A CN109738201 A CN 109738201A CN 201811632529 A CN201811632529 A CN 201811632529A CN 109738201 A CN109738201 A CN 109738201A
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Abstract
The invention discloses a kind of test methods of vehicle dynamic brake performance, test method is carried out using vehicle braking experimental rig, vehicle braking experimental rig includes control unit, braking parts, brake operating platform, measuring device, multiple wheel portions and multiple driving portions, test method includes that each driving portion is enabled to apply different driving forces to wheel portion by control unit, with the operating condition of simulating vehicle wheel when turning to, braking parts brake wheel is operated by brake operating platform, measuring device records torque and rotation speed change of each wheel in braking process.The test method of vehicle according to the invention dynamic brake performance can assess the vehicle dynamic brake performance of brake condition of the vehicle under turning condition.
Description
Technical field
The present invention relates to vehicle testing fields, in particular to a kind of test method of vehicle dynamic brake performance.
Background technique
In the related technology, vehicle needs to test the braking ability of vehicle, existing vehicle system before batch production
Dynamic test device once can only carry out braking performance test to wheel, can not multiple wheels to vehicle brake simultaneously
Performance test, can not the torque of wheel of simulating vehicle when being braked under turning condition and the dynamic change of revolving speed, test result
It can not accurate response truth.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention mentions
A kind of vehicle dynamic brake performance of brake condition under turning condition that can assess vehicle is gone out.
The test method of vehicle dynamic brake performance according to the present invention, the test method are tried using vehicle braking
Experiment device carries out, and the vehicle braking experimental rig includes control unit, braking parts, brake operating platform, measuring device, multiple wheels
Portion and multiple driving portions, each wheel portion includes wheel, and each driving portion is respectively used to one institute of corresponding driving
Wheel rotation is stated, for controlling the driving portion to the output power in the wheel portion, the braking parts are suitable for the control unit
The wheel to be braked, the brake operating platform includes brake pedal, and the brake pedal is connect with the braking parts, with
The braking parts are driven to brake the wheel, the measuring device is suitable for implementing in the wheel braking measuring each vehicle
The torque of wheel and revolving speed, wherein the test method includes the following steps:
Step a: each driving portion is enabled to apply different driving forces to the wheel portion by the control unit, with mould
The operating condition of quasi- vehicle wheel when turning to；
Step b: the braking parts are operated by the brake operating platform and brake the wheel, the measuring device measurement is every
Torque and rotation speed change of a wheel in braking process.
The test method of vehicle dynamic brake performance according to the present invention, by enabling each driving portion to described
Wheel portion applies different driving forces, with the operating condition of simulating vehicle wheel when turning to, can assess vehicle under turning condition
The vehicle dynamic brake performance of brake condition.
The test method of vehicle dynamic brake performance according to the present invention, the vehicle braking experimental rig also wrap
Include: nature imitation experiment device, the nature imitation experiment device are connected with the control unit, the test method further include:
Step c: establishing emulation platform by the nature imitation experiment device, the friction of road conditions where setting the vehicle
The default turning radius of power and the vehicle；
Step d: vehicle is carried out according to the nature imitation experiment device and was braked when the default turning radius is turned
Journey l-G simulation test obtains the torque parameter and rotary speed parameter of each wheel in the braking process l-G simulation test；
Step e: the torque parameter, the rotary speed parameter are transferred to the driving portion by the nature imitation experiment device, with
The different driving forces for making the driving portion show that each driving portion applies the wheel portion.
The test method of vehicle dynamic brake performance according to the present invention, the test method further include:
Step f: the driving portion is enabled to apply the load of simulated roadway frictional force to the wheel portion by the control unit.
Further, the vehicle braking experimental rig further include: nature imitation experiment device, the nature imitation experiment device and institute
It states control unit to be connected, the test method further include:
Step g: establishing emulation platform by the nature imitation experiment device, the friction of road conditions where setting the vehicle
The default turning radius of power and the vehicle；
Step h: vehicle is carried out according to the nature imitation experiment device and was braked when the default turning radius is turned
Journey l-G simulation test, obtains the torque parameter and rotary speed parameter of each wheel in the braking process l-G simulation test, and obtains institute
State the load parameter that wheel is given in vehicle braking process simulation test by road；
Step i: the torque parameter, the rotary speed parameter and the load parameter are transferred to by the nature imitation experiment device
The driving portion, so that the driving portion obtains the different driving forces that each driving portion applies the wheel portion, and
The driving portion is set to obtain the simulated roadway frictional force load.
Optionally, the wheel braking experimental rig further includes environmental chamber, and chassis portion, the ring are equipped in the environmental chamber
Border room has the first side being oppositely arranged and second side, and the wheel portion includes multiple groups, and wheel portion described in every group includes one and sets
It sets and the wheel portion of described second side is set the wheel portion of first side and one, the wheel portion is also wrapped
Axletree is included, each axletree is connect with the chassis portion.
Further, each driving portion is arranged at the side that the wheel portion deviates from the environmental chamber.
Further, each driving portion includes bottom platform, driving motor, flywheel bindiny mechanism, the drive
Dynamic motor and the flywheel bindiny mechanism are installed in the bottom platform, and the braking parts pass through the flywheel bindiny mechanism
It is connect with the wheel portion.
Further, the flywheel bindiny mechanism includes inertial flywheel and shaft coupling, the braking parts and the inertia
Flywheel connection, the axletree are connect by the shaft coupling with the inertial flywheel.
Further, the driving portion further includes flywheel disassembling mechanism, and the flywheel disassembling mechanism and the flywheel connect
Connection mechanism connects and is used to dismantle the flywheel bindiny mechanism.
Further, the control unit includes computer and control cabinet, and the computer is suitable for manipulating institute by the control cabinet
Driving portion is stated, the control cabinet is further adapted for powering to the driving portion.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of the vehicle braking experimental rig of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the braking parts of the embodiment of the present invention；
Fig. 3 is the flow chart of the test method of the vehicle dynamic brake performance of one embodiment of the invention；
Fig. 4 is the flow chart of the test method of the vehicle dynamic brake performance of another embodiment of the present invention.
Appended drawing reference:
Vehicle braking experimental rig 100, wheel portion 1, wheel 11, axletree 12, driving portion 2, bottom platform 21, driving electricity
Machine 22, flywheel bindiny mechanism 23, flywheel disassembling mechanism 24, control unit 3, computer 31, control cabinet 32, braking parts 4, brake operating platform
5, brake pedal 51, seat 52, measuring device 6, environmental chamber 7, hoisting mechanism 71, chassis portion 8.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is at least two, such as two
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate with each other；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the interaction relationship of connection or two elements inside two elements.For the ordinary skill in the art,
The specific meanings of the above terms in the present invention can be understood according to specific conditions.
With reference to the accompanying drawing and with reference to the specific embodiment description present invention.
The test method of the vehicle dynamic brake performance of the embodiment of the present invention is described below with reference to Fig. 1-Fig. 4.
As Figure 1-Figure 2, the test method of the vehicle dynamic brake performance of the embodiment of the present invention is tried using vehicle braking
Experiment device 100 carries out.
As depicted in figs. 1 and 2, the vehicle braking experimental rig 100 of the embodiment of the present invention may include control unit 3, braking
Portion 4, brake operating platform 5, measuring device 6, multiple wheel portions 1 and multiple driving portions 2, each wheel portion 1 include wheel 11, often
A driving portion 2 is respectively used to corresponding one wheel 11 of driving and rotates.
As shown in Figure 1, control unit 3 is for controlling driving portion 2 to the output power in wheel portion 1, brake operating platform 5 includes system
Dynamic pedal 51, brake pedal 51 is connect with braking parts 4, so that brake pedal 51 can drive when personnel trample brake pedal 51
Dynamic 4 brake wheel 11 of braking parts.
When carrying out vehicle braking test using vehicle braking experimental rig 100, vehicle can be driven by control unit 3 first
11 rotation of wheel, to simulate actual vehicle driving process.Further, personnel trample brake pedal 51 on brake operating platform 5, so that
Brake pedal 51 drives 4 brake wheel 11 of braking parts, and measuring device 6 is implemented to measure each wheel 11 when wheel 11 is braked at this time
Torque and revolving speed.Then, personnel can according to torque of the wheel 11 in 11 braking process of wheel that measuring device 6 measures and
Rotation speed change analyzes multidate information of the wheel 11 in 11 braking process of wheel, and accurate evaluation braking parts 4 were braked in wheel 11
To the braking ability of wheel 11 in journey.
In addition, braking parts 4 can brake multiple wheels 11, thus by measuring device 6, it can be more realistically anti-
The vehicle torque of each wheel and rotation speed change situation in braking process are reflected, more accurately to assess braking parts 4 in wheel 11
To the braking ability of wheel 11 in braking process.
Vehicle braking experimental rig 100 according to an embodiment of the present invention is grasped by setting control unit 3, braking parts 4, braking
Make platform 5, measuring device 6, multiple wheel portions 1 and multiple driving portions 2, multiple wheel portions 1 can simulate multiple wheels to vehicle
11 carry out retardation tests, and measuring device 6 can test the dynamic torque of wheel 11 and revolving speed in 11 braking process of wheel
Variation, so as to more accurately assess the brake condition of vehicle.
As Figure 3-Figure 4, test method includes the following steps:
Step a: it enables each driving portion 2 apply different driving forces to wheel portion 1 by control unit 3, is existed with simulating vehicle
The operating condition of wheel 11 when steering；
Step b: 4 brake wheel 11 of braking parts is operated by brake operating platform 5, measuring device 6 records each wheel 11 and exists
Torque and rotation speed change in braking process.
The test method of vehicle according to the invention dynamic brake performance, by enabling each driving portion 2 to apply wheel portion 1
Different driving forces can assess brake condition of the vehicle under turning condition with the operating condition of simulating vehicle wheel 11 when turning to
Vehicle dynamic brake performance.
Thus, it is possible in braking process, simulation vehicle traveling damped condition on different turning radius roads, verifying
Braking energy of electric automobiles recycles the perfect in shape and function of control logic, completes the preliminary calibration work to braking energy control strategy
Make, completes the preliminary Bench calibration explained electric vehicle driver braking moment and work, it is effective to save the vehicle nominal time
And the actual place nominal time, break the excessive dependence to low temperature calibration environment, shorten the automobile research period, there is important meaning
Justice.
In some specific embodiments, vehicle braking experimental rig 100 further includes nature imitation experiment device, emulation experiment dress
It sets and is connected with control unit 3.In some instances, nature imitation experiment device can be the computer 31 of control unit 3, as shown in figure 3, test
Method further include:
Step c: establishing emulation platform by nature imitation experiment device, and emulation platform can be virtual digit simulation software, if
The frictional force of road conditions and the default turning radius of vehicle where determining vehicle；
Step d: vehicle braking process emulation examination when default turning radius is turned is carried out according to nature imitation experiment device
It tests, obtains the torque parameter and rotary speed parameter of each wheel 11 in braking process l-G simulation test；
Step e: torque parameter, rotary speed parameter are transferred to driving portion 2 by nature imitation experiment device, so that driving portion 2 obtains often
The different driving forces that a driving portion 2 applies wheel portion 1.
It is understood that as shown in figure 3, step c, step d and step e before step a, thus in driving portion 2
After obtaining the different driving forces that driving portion 2 applies wheel portion 1, the different driving power obtained can be distributed through multiple drives
The dynamic correspondence of portion 2 is applied in wheel portion 1.Nature imitation experiment device and step c, step d and step e can apply to wheel portion 1
The driving force that the wheel of vehicle 11 is actually subject to is verified in advance before driving force, so that the driving force that each wheel 11 is subject to
The driving force situation being subject to closer to wheel 11 each when actual vehicle turning, more accurately to reflect the braking of Ackermann steer angle
Situation.
In further embodiments, as shown in figure 4, test method further include:
Step f: driving portion 2 is enabled to apply the load of simulated roadway frictional force to wheel portion 1 by control unit 3.
It should be noted that as shown in figure 4, step f between step a and step b, thus driving portion 2 drive vehicle
After 11 rotation of wheel, the load of simulated roadway frictional force further is applied to wheel portion 1.It is possible thereby to be simulated whole in braking process
Vehicle travels on different roads, realizes and tests braking performance test function under different road conditions in laboratory, improves retardation test
Authenticity.
Specifically, vehicle braking experimental rig 100 further includes nature imitation experiment device, nature imitation experiment device and 3 phase of control unit
Even.In some instances, nature imitation experiment device can be the computer 31 of control unit 3, as shown in figure 4, test method further include:
Step g: establishing emulation platform by nature imitation experiment device, and emulation platform can be virtual digit simulation software, if
The frictional force of road conditions and the default turning radius of vehicle where determining vehicle；
Step h: vehicle braking process emulation examination when default turning radius is turned is carried out according to nature imitation experiment device
It tests, obtains the torque parameter and rotary speed parameter of each wheel 11 in braking process l-G simulation test, and obtain wheel 11 in vehicle
The load parameter given in braking process l-G simulation test by road；
Step i: torque parameter, rotary speed parameter and load parameter are transferred to driving portion 2 by nature imitation experiment device, so that driving
Portion 2 obtains the different driving forces that each driving portion 2 applies wheel portion 1, and driving portion 2 is made to show that simulated roadway frictional force is negative
It carries.
It is understood that as shown in figure 4, step g, step h and step i before step a, thus in driving portion 2
Obtaining can be by simulated roadway after the load of simulated roadway frictional force and the different driving forces that apply to wheel portion 1 of driving portion 2
Frictional force load and the distribution of different driving power are applied in wheel portion 1 by multiple driving portions 2 correspondence.Nature imitation experiment device and step
Rapid g, step h and step i can be in the driving forces and reality being actually subject to before retardation test starts to the wheel of vehicle 11
Road friction power verified in advance so as to wheel portion 1 apply simulated roadway frictional force load value it is truer, make simultaneously
The driving force that each wheel 11 the is subject to driving force situation that each wheel 11 is subject to when turning closer to actual vehicle, with more acurrate
Ground reflects brake condition of the vehicle when running on the road simulated.
In some optional embodiments of the invention, measuring device 6 can be the wheel 11 or vehicle that wheel portion 1 is arranged in
Speed probe or/and torque sensor on wheel shaft 12, the thus accurate test carriage in 11 braking process of wheel of measuring device 6
Take turns the variation of 11 dynamic torques and revolving speed.
In some specific embodiments, as shown in Figure 1, vehicle braking experimental rig 100 further includes environmental chamber 7, environment
Be equipped with chassis portion 8 in room 7, chassis portion 8 can simulate the chassis of actual vehicle, environmental chamber 7 have the first side being oppositely arranged and
Second side, wheel portion 1 include multiple groups, and every group of wheel portion 1 includes that a wheel portion 1 that the first side is arranged in and a setting exist
The wheel portion 1 of second side, wheel portion 1 further include axletree 12, and wheel 11 is rotated around the center of corresponding axletree 12, Mei Geche
Wheel shaft 12 is connect with chassis portion 8.
As a result, chassis portion 8 and multiple wheel portions 1 can common simulating vehicle chassis and the wheel that is connect with chassis
11, to improve the test authenticity of vehicle braking experimental rig 100.
Since there are four running vehicle wheels for tool in most of automobiles, in some instances, as shown in Figure 1, wheel portion 1 and driving
Portion 2 all can be four, and the wheel 11 in four wheel portions 1 can be with four running vehicle wheels in simulated automotive.
In some specific embodiments, braking parts 4 can be brake disc or brake caliper, and brake disc or brake caliper are logical
Bolt is crossed to be fixed in the suspension system in chassis portion 8.In some instances, brake disc or brake caliper can directly by with vehicle
Wheel 11 rubs and brakes to wheel 11.In other examples, brake disc or brake caliper can also be by rubbing or pressing from both sides
Axletree 12 is held, axletree 12 is braked, and then wheel 11 is braked indirectly.
Specifically, as shown in Figure 1, each driving portion 2 is arranged at the side that wheel portion 1 deviates from environmental chamber 7.It drives as a result,
Dynamic portion 2 may be located remotely from environmental chamber 7, in order to the installation of driving portion 2, while convenient for the installation in chassis portion 8 in environmental chamber 7.
Specifically, as shown in Fig. 2, each driving portion 2 includes bottom platform 21, driving motor 22, flywheel bindiny mechanism
23, bottom platform 21 can be placed on the ground, and driving motor 22 and flywheel bindiny mechanism 23 are installed in bottom platform 21,
So that driving motor 22 and flywheel bindiny mechanism 23 keep stablizing when working, braking parts 4 pass through flywheel bindiny mechanism 23 and wheel
Portion 1 connects, and thus flywheel bindiny mechanism 23 can load braking parts 4 by the kinetic energy of storage, to brake in braking parts 4
The torque and rotation speed change of wheel 11 when can more accurately reflect 4 brake wheel 11 of braking parts of vehicle when wheel portion 1.
More specifically, as shown in Fig. 2, flywheel bindiny mechanism 23 includes inertial flywheel and shaft coupling, braking parts 4 and inertia
Flywheel connection, axletree 12 are connect by shaft coupling with inertial flywheel, shaft coupling can guarantee axletree 12 and inertial flywheel it
Between connective stability, inertial flywheel can load braking parts 4 by the kinetic energy of storage, to brake vehicle in braking parts 4
The torque and rotation speed change of wheel 11 when can more accurately reflect 4 brake wheel 11 of braking parts of vehicle when wheel portion 1.
More specifically, as shown in Fig. 2, driving portion 2 further includes flywheel disassembling mechanism 24, flywheel disassembling mechanism 24 and flywheel
Bindiny mechanism 23 connects, and flywheel disassembling mechanism 24 can be used for dismantling flywheel bindiny mechanism 23, after dismantling flywheel bindiny mechanism 23,
Wheel portion 1 can be unloaded, to be convenient for changing the braking parts 4 of different model or different structure, to test different braking portion 4 to vehicle
The braking effect of wheel 11.
In some specific embodiments, hoisting mechanism 71 is equipped in environmental chamber 7.In some instances, hoisting mechanism 71
It can be hoisting machine common in the art.All parts in chassis portion 8 can be lifted on environmental chamber 7 by hoisting mechanism 71
It is interior, so that the installation in chassis portion 8 is more convenient.
Specifically, as shown in Figure 1, control unit 3 includes computer 31 and control cabinet 32, computer 31 passes through control cabinet 32 and driving
Portion 2 connects, and computer 31 is suitable for manipulating driving portion 2 by control cabinet 32, and personnel input the torque to wheel 11 by computer 31 and believe
Breath, and then computer 31 controls control cabinet 32 and drives driving portion 2 to rotate wheel 11 to rotating speed of target and target turn according to moment information
Square, control cabinet 32 is further adapted for powering to driving portion 2, to realize driving of the driving motor 22 to wheel 11.
In some specific embodiments, as shown in Figure 1, brake operating platform 5 fixes on the ground, on brake operating platform 5
Equipped with seat 52, occupant can be rided on seat 52.Passenger riding is when on seat 52, brake pedal 51
Positioned at the front of occupant, thus occupant, which can ride on seat 52, tramples brake pedal 51, so that brake pedal 51 drives
The brake operating of dynamic 4 brake wheel 11 of braking parts, brake pedal 51 is more convenient.
In addition, can be opened before vehicle does not build completion using the vehicle braking experimental rig 100 of the embodiment of the present invention
Open up the thermal shock retardation test to the braking system of vehicle, the test of ramp continuous braking, the test of pressure stabilizing speed-changing braking, wet type parking
It is retardation test, the wheels-locked testing of speed stabilizing transformation, speed change wheels-locked testing, primary braking transformation test, the wheels-locked testing of transformation speed change, air-cooled
Wheels-locked testing, the test of dry type stopping brake, static friction test, running-in test, rate of wear test, brake efficiency test, braking
Test, Brake pad, gasket wear test, the quiet potency test of parking, the dynamic potency test of parking are replied in device heat fading, are realized to vehicle
Braking effect effective verifying.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
What can be combined in any suitable manner in one or more embodiment or examples.In addition, those skilled in the art can say this
Different embodiments or examples described in bright book are engaged and are combined.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of test method of vehicle dynamic brake performance, which is characterized in that the test method is tested using vehicle braking
Device carries out, and the vehicle braking experimental rig includes: control unit, braking parts, brake operating platform, measuring device, multiple wheels
Portion and multiple driving portions, each wheel portion includes: wheel, and each driving portion is respectively used to one institute of corresponding driving
Wheel rotation is stated, for controlling the driving portion to the output power in the wheel portion, the braking parts are suitable for the control unit
The wheel to be braked, the brake operating platform includes: brake pedal, and the brake pedal is connect with the braking parts,
To drive the braking parts to brake the wheel, the measuring device is suitable for implementing measurement in the wheel braking each described
The torque of wheel and revolving speed；
Wherein, the test method includes the following steps:
Step a: each driving portion is enabled to apply different driving forces to the wheel portion by the control unit, to simulate vehicle
Turn to when wheel operating condition；
Step b: the braking parts are operated by the brake operating platform and brake the wheel, the measuring device records each institute
State torque and rotation speed change of the wheel in braking process.
2. the test method of vehicle dynamic brake performance according to claim 1, which is characterized in that the vehicle braking examination
Experiment device further include: nature imitation experiment device, the nature imitation experiment device are connected with the control unit, and the test method is also wrapped
It includes:
Step c: establishing emulation platform by the nature imitation experiment device, the frictional force of road conditions where setting the vehicle and
The default turning radius of the vehicle；
Step d: it is imitative that vehicle braking process when the default turning radius is turned is carried out according to the nature imitation experiment device
True test, obtains the torque parameter and rotary speed parameter of each wheel in the braking process l-G simulation test；
Step e: the torque parameter, the rotary speed parameter are transferred to the driving portion by the nature imitation experiment device, so that institute
It states driving portion and obtains the different driving forces that each driving portion applies the wheel portion.
3. the test method of vehicle dynamic brake performance according to claim 1, which is characterized in that the test method is also
Include:
Step f: the driving portion is enabled to apply the load of simulated roadway frictional force to the wheel portion by the control unit.
4. the test method of vehicle dynamic brake performance according to claim 3, which is characterized in that the vehicle braking examination
Experiment device further include: nature imitation experiment device, the nature imitation experiment device are connected with the control unit, and the test method is also wrapped
It includes:
Step g: establishing emulation platform by the nature imitation experiment device, the frictional force of road conditions where setting the vehicle and
The default turning radius of the vehicle；
Step h: it is imitative that vehicle braking process when the default turning radius is turned is carried out according to the nature imitation experiment device
True test, obtains the torque parameter and rotary speed parameter of each wheel in the braking process l-G simulation test, and obtain the vehicle
Take turns the load parameter given in vehicle braking process simulation test by road；
Step i: the torque parameter, the rotary speed parameter and the load parameter are transferred to described by the nature imitation experiment device
Driving portion so that the driving portion obtains the different driving forces that each driving portion applies the wheel portion, and makes institute
It states driving portion and obtains the simulated roadway frictional force load.
5. the test method of vehicle dynamic brake performance described in any one of -4 according to claim 1, which is characterized in that described
Wheel braking experimental rig further include: environmental chamber is equipped with chassis portion in the environmental chamber, and the environmental chamber, which has, to be oppositely arranged
First side and second side, the wheel portion includes multiple groups, and wheel portion described in every group includes the institute that first side is arranged in
State wheel portion and a wheel portion that described second side is set, the wheel portion further include: axletree, it is each described
Axletree is connect with the chassis portion.
6. the test method of vehicle dynamic brake performance according to claim 5, which is characterized in that each driving portion is all provided with
It sets and deviates from the side of the environmental chamber in the wheel portion.
7. the test method of vehicle dynamic brake performance according to claim 5, which is characterized in that each driving portion
It include: bottom platform, driving motor, flywheel bindiny mechanism, the driving motor and the flywheel bindiny mechanism are installed in
In the bottom platform, the braking parts are connect by the flywheel bindiny mechanism with the wheel portion.
8. the test method of vehicle dynamic brake performance according to claim 7, which is characterized in that the flywheel connects machine
Structure includes: inertial flywheel and shaft coupling, and the braking parts are connect with the inertial flywheel, and the axletree passes through the shaft coupling
It is connect with the inertial flywheel.
9. the test method of vehicle dynamic brake performance according to claim 7, which is characterized in that the driving portion also wraps
Include: flywheel disassembling mechanism, the flywheel disassembling mechanism connect with the flywheel bindiny mechanism and are used to dismantle the flywheel connection
Mechanism.
10. the test method of vehicle dynamic brake performance according to claim 1, which is characterized in that the control unit packet
Include: computer and control cabinet, the computer are suitable for manipulating the driving portion by the control cabinet, and the control cabinet is further adapted for institute
State driving portion power supply.
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| RU180334U1 (en) * | 2016-10-13 | 2018-06-08 | федеральное государственное бюджетное образовательное учреждение высшего образования "Нижегородский государственный технический университет им. Р.Е. Алексеева" (НГТУ) | Half-life test bench |
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| CN106872188A (en) * | 2016-12-30 | 2017-06-20 | 合肥工业大学 | A kind of In-wheel motor driving electric vehicle rotary is to experimental bench |
| CN106840694A (en) * | 2017-01-11 | 2017-06-13 | 吉林大学 | Electric motor coach composite braking hardware-in―the-loop test platform and method of testing based on electric controlled brake system |
| CN207472575U (en) * | 2017-09-21 | 2018-06-08 | 上汽通用五菱汽车股份有限公司 | A kind of test-bed of brake system of car performance test |
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| CN108362502A (en) * | 2018-01-03 | 2018-08-03 | 浙江大学 | Wheel hub motor drive/braking performance test and energy regenerating is multifunctional test bed and its method |
| CN207730456U (en) * | 2018-01-03 | 2018-08-14 | 浙江大学 | Wheel hub motor drive/braking performance test and energy regenerating are multifunctional test bed |
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Application publication date: 20190510 |