CN108375436B - Four-wheel drive chassis power measuring system of pure electric vehicle - Google Patents
Four-wheel drive chassis power measuring system of pure electric vehicle Download PDFInfo
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- CN108375436B CN108375436B CN201711473407.6A CN201711473407A CN108375436B CN 108375436 B CN108375436 B CN 108375436B CN 201711473407 A CN201711473407 A CN 201711473407A CN 108375436 B CN108375436 B CN 108375436B
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- roller
- friction
- roller device
- rolling roller
- belt
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The invention relates to the field of automobile testing, and discloses a four-wheel drive chassis power measuring system of a pure electric automobile, which comprises a test board, a roller device, a power testing component and a vibration table, wherein the test board is arranged on the test board; the test bench is provided with a roller device, a power test assembly and a vibration bench; the power testing component comprises an asynchronous generator and a frequency converter, the frequency converter is connected with the asynchronous generator through a wire, and the asynchronous generator is connected with the roller device through a transmission shaft; the roller device comprises a first rolling roller, a conveyor belt, a second rolling roller, a friction belt and a lifting shaft; the shaking table consists of four impact devices and a storage plate. The transmission friction coefficient of the whole roller device is controlled by matching the conveyor belt with the friction belt, so that different scenes can be conveniently simulated; through the arrangement of the vibration table, other data of the electric automobile to be tested under the vibration condition are continuously acquired, and a good simulation effect is achieved; through the arrangement of the heat dissipation device, heat generated when the roller device operates is dissipated, and the influence caused by overheating is reduced.
Description
Technical Field
The invention relates to the field of automobile testing, in particular to a four-wheel drive chassis power measuring system of a pure electric automobile.
Background
The automobile inspection technology is derived from automobile maintenance technology, and the automobile maintenance is developed along with the development of the automobile technology. In the early automobile maintenance process, the automobile fault is mainly discovered and repaired in a targeted way by experienced maintenance personnel, namely the modes of 'looking (looking at)' (for example, the fault is judged by observing the appearance of the automobile or the running state of the automobile), 'hearing (hearing) (for example, the fault is judged by the sound production of the running of an engine and the like),' asking (inquiring) (for example, the fault is judged by inquiring the use condition or the phenomenon of the automobile by a driver) and 'cutting (touching)' (for example, the fault is judged by the phenomenon of sensing the temperature, the vibration, the pressure and the like by touching the hands). With the progress of modern electromechanical measurement and control technology, especially the progress of computer technology, the automobile detection technology is also developed rapidly. At present, people can rely on various advanced instruments and equipment to detect the automobile without disassembly, and the detection is safe, rapid and reliable. The safety and environmental protection detection refers to the detection of the automobile in terms of regular and irregular safety operation and environmental protection; the purpose is to establish a safety and public hazard monitoring system under the condition that the automobile is not disassembled, ensure that the automobile has appearance and appearance which meet the requirements and good safety performance, limit the environmental pollution degree of the automobile and ensure that the automobile runs under the working conditions of safety, high efficiency and low pollution. The comprehensive performance detection refers to the detection of the comprehensive performance of the automobile in terms of regular and irregular periods; the method aims to determine the working capacity and technical condition of an operating vehicle, find out the fault or hidden danger position and reason, supervise the quality of a maintenance vehicle, establish a quality monitoring system and ensure that the vehicle has good safety, reliability, dynamic property, economy, exhaust purification and noise pollution so as to create greater economic benefit and social benefit under the condition that the vehicle is not disassembled.
Compared with an outdoor road test, the vehicle test on the chassis dynamometer has the advantages of safety, high efficiency and good repeatability. The chassis dynamometer for the automobile has the same principle, and the driving wheel is placed on the roller for testing. The roller is wide, and the dynamometer power is larger. However, the road conditions simulated in the prior art are all performed under good conditions, and in general, the automobile may also be driven under bad conditions of the road, such as large friction, vibration caused by road shake, etc., which may affect the operation of the automobile, and in these conditions, the automobile also needs to be tested.
Disclosure of Invention
Aiming at the defects of poor simulation effect, few simulation conditions and missing test effect in the prior art, the invention provides a four-wheel drive chassis power measuring system of a pure electric vehicle.
In order to solve the above technical problems, the present invention is solved by the following technical solutions.
A four-wheel drive chassis power measuring system of a pure electric vehicle comprises a test board, a roller device, a power test assembly and a vibration table; the test bench is provided with a roller device, a power test assembly and a vibration bench; the power testing component comprises an asynchronous generator and a frequency converter, the frequency converter is connected with the asynchronous generator through a wire, and the asynchronous generator is connected with the roller device through a transmission shaft; the roller device comprises a first rolling roller, a conveying belt, a second rolling roller, a friction belt and a lifting shaft, wherein the first rolling roller drives the conveying belt to rotate, the second rolling roller drives the friction belt to rotate, the first rolling roller and the second rolling roller are both connected with an output shaft of the asynchronous generator, the conveying belt is provided with a plurality of uniformly distributed friction holes, the friction belt is provided with a plurality of uniformly distributed friction bulges, the friction bulges are matched with the friction holes, and the lifting shaft drives the second rolling roller to move up and down; the shaking table comprises four impact devices and a storage plate, the four impact devices are fixedly connected below the storage plate and comprise impact heads, springs and control motors, the impact heads are fixed and the springs and the storage plate are arranged between the impact heads, and the control motors drive the springs to move through the swinging of the rotating shafts.
Preferably, the heat dissipation device is arranged below the roller device and comprises a flat-mouth fan, a wind direction guide rail and an exhaust fan, the flat-mouth fan is arranged on one side of the conveying belt, the wind direction guide rail is fixed at the lower end of the flat-mouth fan, the exhaust fan is arranged on the other side of the conveying belt, the surface of the conveying belt at the lower end is cooled through the arrangement of the heat dissipation device, and the wind direction guide rail can enhance the wind speed so as to accelerate the blowing away of heat and exhaust the heat through the exhaust fan.
Preferably, the device further comprises a storage battery electric quantity display instrument, wherein the storage battery electric quantity display instrument is used for connecting a storage battery of the electric automobile to be tested and measuring electric quantity loss, and electric quantity loss under different conditions is conveniently calculated.
As preferred, be equipped with fixing device on the testboard, fixing device includes fixed stop, adjustable fender and clamping seat, is equipped with the clamping on the clamping seat and leads to the groove, and fixed stop and adjustable fender set up and lead to the groove at the clamping, are equipped with the movable guide between fixed stop and the adjustable fender, and adjustable fender removes along the movable guide direction for adjust the width that the clamping led to the groove, adapt to different tire widths, conveniently detect many times.
Preferably, a plurality of uniformly distributed fixing holes are formed in the movable guide rail, the movable baffle plate is provided with a through fixing bolt, and the fixing bolt penetrates into the fixing holes to fix the movable baffle plate so as to fix the width of the clamping through groove.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: according to the invention, the chassis is tested through the roller device, and the transmission friction coefficient of the whole roller device is controlled through the matching of the conveyor belt and the friction belt, so that different scenes can be conveniently simulated; through the arrangement of the vibration table, the vibration condition which possibly occurs in the use process can be simulated, and other data of the electric automobile to be tested under the vibration condition are continuously acquired, so that a good simulation effect is achieved; through heat abstractor's setting, give off the produced heat when running with the cylinder device, take away the heat on conveyer belt surface, make the cylinder device can normal operating, reduced the influence that overheated brought.
Drawings
FIG. 1 is a schematic structural diagram of a four-wheel drive chassis dynamometer system of a pure electric vehicle according to the present invention;
FIG. 2 is a schematic structural diagram of a roller device in a four-wheel drive chassis dynamometer system of a pure electric vehicle according to the present invention;
FIG. 3 is a schematic structural diagram of a vibration table in a four-wheel drive chassis dynamometer system of a pure electric vehicle according to the present invention;
FIG. 4 is a schematic structural diagram of a heat dissipation device in a four-wheel drive chassis dynamometer system of a pure electric vehicle according to the present invention;
FIG. 5 is a schematic structural diagram of a fixing device in a four-wheel drive chassis dynamometer system of a pure electric vehicle according to the present invention.
In the figure: the device comprises a test board 1, a test board 2, a roller device 21, a first rolling roller 22, a conveyor belt 221, a friction hole 23, a second rolling roller 24, a friction belt 241, a friction bulge 25, a lifting shaft 3, a heat dissipation device 31, a flat-mouth fan, a 32 air-direction guide rail 33, an exhaust fan 33, a 4-vibration table 41, an object placing plate 42, an impact head 42, a spring 43, a rotating shaft 44, a control motor 45, a fixing device 5, an embedding seat 51, an embedding through groove 511, a fixing baffle 52, a movable baffle 53, a fixing bolt 531, a moving guide rail 54 and a fixing hole 541.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 to 5, a four-wheel drive chassis dynamometer system for a pure electric vehicle includes a test bench 1, a roller device 2, a power test component and a vibration bench 4; the test bench 1 is provided with a roller device 2, a power test assembly and a vibration bench 4; the power testing component comprises an asynchronous generator and a frequency converter, the frequency converter is connected with the asynchronous generator through a wire, and the asynchronous generator is connected with the roller device 2 through a transmission shaft; the roller device 2 comprises a first rolling roller 21, a conveyor belt 22, a second rolling roller 23, a friction belt 24 and a lifting shaft 25, the first rolling roller 21 drives the conveyor belt 22 to rotate, the second rolling roller 23 drives the friction belt 24 to rotate, the first rolling roller 21 and the second rolling roller 23 are both connected with an output shaft of an asynchronous generator, a plurality of uniformly distributed friction holes 221 are formed in the conveyor belt 22, a plurality of uniformly distributed friction bulges 241 are arranged on the friction belt 24, the friction bulges 241 are matched with the friction holes 221, and the lifting shaft 25 drives the second rolling roller 23 to move up and down; the shaking table 4 comprises four impact devices and an object placing plate 41, the four impact devices are fixedly connected below the object placing plate 41, each impact device comprises an impact head 42, a spring 43 and a control motor 45, the impact heads 42 are fixed between the springs 43 and the object placing plate 41, and the control motors 45 drive the springs 43 to move through the swinging of rotating shafts 44.
Still include heat abstractor 3, 2 below in the cylinder device are located to heat abstractor 3, heat abstractor 3 includes flat mouthful of fan 31, wind direction guide rail 32 and air exhauster 33, one side of conveyer belt 22 is located to flat mouthful of fan 31, wind direction guide rail 32 is fixed in flat mouthful of lower extreme of fan 31, air exhauster 33 sets up in the opposite side of conveyer belt 22, setting through heat abstractor 3, dispel the heat to the conveyer belt 22 surface of lower extreme, wind direction guide rail 32 can strengthen the wind speed, thereby blow away the heat with higher speed, and discharge through air exhauster 33.
Still include storage battery power display appearance, storage battery power display appearance is used for connecting the electric automobile's that awaits measuring storage battery and measures the power loss, conveniently calculates the power loss under the different conditions.
Be equipped with fixing device 5 on testboard 1, fixing device 5 includes fixed stop 52, adjustable fender 53 and clamping seat 51, be equipped with clamping through groove 511 on clamping seat 51, fixed stop 52 and adjustable fender 53 set up on clamping through groove 511, be equipped with between fixed stop 52 and the adjustable fender 53 and remove guide rail 54, adjustable fender 53 removes along removing guide rail 54 direction, be used for adjusting the width that clamping through groove 511, adapt to different tire widths, conveniently carry out a lot of and detect.
The movable guide rail 54 is provided with a plurality of fixing holes 541 which are uniformly distributed, the movable baffle 53 is provided with a through fixing bolt 531, and the fixing bolt 531 penetrates into the fixing holes 541 to fix the movable baffle 53 so as to fix the width of the clamping through groove 511.
When the test and use are started, the front wheel and the rear wheel of the automobile to be tested are respectively placed on the roller device 2 and the fixing device 5 on the test board 1, the fixing device 5 is fixed after the width of the rear wheel is determined, the position of the movable baffle plate 53 is adjusted to the nearest position of the width of the tire, and then the movable baffle plate 53 is fixed by penetrating the fixing hole 541 on the movable guide rail 54 through the fixing bolt 531, so that the rear wheel is fixed by the fixing device 5; then starting the roller device 2 to measure power, and simultaneously opening the heat dissipation device 3 to dissipate heat, so that the roller device 2 can normally operate for a long time, and when a condition with large friction force is required, adjusting the lifting shaft 25 to lift the second rolling roller 23, so that the friction belt 24 rises to penetrate through the friction hole 221 of the conveyor belt 22 to adjust the friction force, thereby achieving a simulation condition; simultaneously, can also cooperate the vibrations of setting at the vibrations platform 4 of chassis below to the vehicle, carry out the simulation test, both cooperate each other to the different scenes of simulation road condition, accomplish the test purpose.
According to the invention, the chassis is tested through the roller device 2, and the transmission friction coefficient of the whole roller device 2 is controlled through the matching of the conveyor belt 22 and the friction belt 24, so that different scenes can be conveniently simulated; by arranging the vibration table 4, the vibration condition which possibly occurs in use can be simulated, and other data of the electric automobile to be tested under the vibration condition are continuously acquired, so that a good simulation effect is achieved; through the setting of heat abstractor 3, give off the produced heat when cylinder device 2 moves, take away the heat on conveyer belt 22 surface, make cylinder device 2 can normal operating, reduced the influence that overheated brought.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (1)
1. The utility model provides a pure electric vehicles four-wheel drive chassis dynamometer system which characterized in that: the device comprises a test board (1), a roller device (2), a power test assembly and a vibration table (4); the test bench (1) is provided with a roller device (2), a power test component and a vibration bench (4); the power testing component comprises an asynchronous generator and a frequency converter, the frequency converter is connected with the asynchronous generator through a wire, and the asynchronous generator is connected with the roller device (2) through a transmission shaft; the roller device (2) comprises a first rolling roller (21), a conveyor belt (22), a second rolling roller (23), a friction belt (24) and a lifting shaft (25), the first rolling roller (21) drives the conveyor belt (22) to rotate, the second rolling roller (23) drives the friction belt (24) to rotate, the first rolling roller (21) and the second rolling roller (23) are both connected with an output shaft of an asynchronous generator, a plurality of uniformly distributed friction holes (221) are formed in the conveyor belt (22), a plurality of uniformly distributed friction bulges (241) are formed in the friction belt (24), the friction bulges (241) are matched with the friction holes (221), and the lifting shaft (25) drives the second rolling roller (23) to move up and down; the vibration table (4) is composed of four impact devices and an object placing plate (41), the four impact devices are fixedly connected below the object placing plate (41), each impact device comprises an impact head (42), a spring (43) and a control motor (45), the impact heads (42) are fixed between the springs (43) and the object placing plate (41), and the control motors (45) drive the springs (43) to move through swinging of rotating shafts (44); the heat dissipation device (3) is arranged below the roller device (2), the heat dissipation device (3) comprises a flat-mouth fan (31), a wind direction guide rail (32) and an exhaust fan (33), the flat-mouth fan (31) is arranged on one side of the conveying belt (22), the wind direction guide rail (32) is fixed to the lower end of the flat-mouth fan (31), and the exhaust fan (33) is arranged on the other side of the conveying belt (22); the device also comprises a storage battery electric quantity display instrument, wherein the storage battery electric quantity display instrument is used for connecting a storage battery of the electric automobile to be measured and measuring electric quantity loss; the test bench (1) is provided with a fixing device (5), the fixing device (5) comprises a fixed baffle (52), a movable baffle (53) and an embedding seat (51), an embedding through groove (511) is formed in the embedding seat (51), the fixed baffle (52) and the movable baffle (53) are arranged on the embedding through groove (511), a movable guide rail (54) is arranged between the fixed baffle (52) and the movable baffle (53), and the movable baffle (53) moves along the direction of the movable guide rail (54); a plurality of fixing holes (541) which are uniformly distributed are formed in the movable guide rail (54), a penetrating fixing bolt (531) is arranged on the movable baffle plate (53), and the fixing bolt (531) penetrates into the fixing holes (541) to fix the movable baffle plate (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711473407.6A CN108375436B (en) | 2017-12-29 | 2017-12-29 | Four-wheel drive chassis power measuring system of pure electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711473407.6A CN108375436B (en) | 2017-12-29 | 2017-12-29 | Four-wheel drive chassis power measuring system of pure electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108375436A CN108375436A (en) | 2018-08-07 |
| CN108375436B true CN108375436B (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711473407.6A Active CN108375436B (en) | 2017-12-29 | 2017-12-29 | Four-wheel drive chassis power measuring system of pure electric vehicle |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3872720A (en) * | 1974-01-14 | 1975-03-25 | Wagner Electric Corp | Assembly line method for testing anti-skid installations |
| RU2025695C1 (en) * | 1990-03-05 | 1994-12-30 | Производственное объединение "Минский тракторный завод им.В.И.Ленина" | Vehicle test stand |
| CN2281531Y (en) * | 1996-11-26 | 1998-05-13 | 田作友 | Power determiner for vehicle chassis |
| CN2476468Y (en) * | 2001-03-28 | 2002-02-13 | 吉林大学 | Back-pull testing device for vehicle chassis function test machine |
| CN101871845A (en) * | 2010-02-01 | 2010-10-27 | 华东交通大学 | Undetached measurement device and method for transmission efficiency of automotive transmission system |
| CN102624198A (en) * | 2012-04-20 | 2012-08-01 | 林贵生 | Permanent magnetic coupling transmission, braking or load device with cooling and lubricating device |
| CN106996878A (en) * | 2017-05-15 | 2017-08-01 | 广州市耐动信息科技有限公司 | A kind of tire testing machine |
| CN107402122A (en) * | 2017-07-17 | 2017-11-28 | 北京云迹科技有限公司 | Robot chassis drives test bed and method of testing |
-
2017
- 2017-12-29 CN CN201711473407.6A patent/CN108375436B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3872720A (en) * | 1974-01-14 | 1975-03-25 | Wagner Electric Corp | Assembly line method for testing anti-skid installations |
| RU2025695C1 (en) * | 1990-03-05 | 1994-12-30 | Производственное объединение "Минский тракторный завод им.В.И.Ленина" | Vehicle test stand |
| CN2281531Y (en) * | 1996-11-26 | 1998-05-13 | 田作友 | Power determiner for vehicle chassis |
| CN2476468Y (en) * | 2001-03-28 | 2002-02-13 | 吉林大学 | Back-pull testing device for vehicle chassis function test machine |
| CN101871845A (en) * | 2010-02-01 | 2010-10-27 | 华东交通大学 | Undetached measurement device and method for transmission efficiency of automotive transmission system |
| CN102624198A (en) * | 2012-04-20 | 2012-08-01 | 林贵生 | Permanent magnetic coupling transmission, braking or load device with cooling and lubricating device |
| CN106996878A (en) * | 2017-05-15 | 2017-08-01 | 广州市耐动信息科技有限公司 | A kind of tire testing machine |
| CN107402122A (en) * | 2017-07-17 | 2017-11-28 | 北京云迹科技有限公司 | Robot chassis drives test bed and method of testing |
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| Publication number | Publication date |
|---|---|
| CN108375436A (en) | 2018-08-07 |
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