CN102042894B - ABS (antilock brake system)/ASR (acceleration slip regulation) comprehensive testing system for low friction vehicle - Google Patents
ABS (antilock brake system)/ASR (acceleration slip regulation) comprehensive testing system for low friction vehicle Download PDFInfo
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- CN102042894B CN102042894B CN2010105293104A CN201010529310A CN102042894B CN 102042894 B CN102042894 B CN 102042894B CN 2010105293104 A CN2010105293104 A CN 2010105293104A CN 201010529310 A CN201010529310 A CN 201010529310A CN 102042894 B CN102042894 B CN 102042894B
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Abstract
The invention discloses an ABS (antilock brake system)/ASR (acceleration slip regulation) comprehensive testing system for a low friction vehicle, consisting of four wheel test beds which have the same function and can be controlled independently. In the system, a brake drive device (12) controls the rotating speeds of a flywheel (1) and the drive end of a slip frequency torque control device (3) to be in accordance with the theoretical wheel rotating speed which is obtained in a vehicle brake (or drive) process according to the wheel center speed; the driven end of the slip frequency torque control device (3) rotates with rotor drums (11, 9) and wheels; limiting friction between the wheels and the rotor drums is increased to be more than the actual braking force (or driving force) which is possibly generated in the wheel brake (drive) process to ensure that the slip rate (or skid ratio) between the wheels and the drums is far smaller than the slip rates (or skid ratio) at two ends of the slip frequency torque control device (3); and the slip frequency torque control device (3) controls the braking force (or driving force) generated between the wheels and the drums according to different pavement attachment conditions so as to complete the vehicle ABS and ASR performance tests under different pavement attachment conditions.
Description
Technical field
The present invention relates to the compbined test technology of automobile ABS/ASR control experimental study and performance test.Automobile ABS (Anti-lock Braking System) device is meant the automotive anti-lock braking device; Automobile ASR (Automatic Slip Regulation) device is meant that automobile drives slippage prevention device, and automobile ABS/ASR device is meant that automobile possesses braking anti-lock function and the device that drives antiskid function simultaneously.
Background technology
At present, domestic and international existing Automobile Dynamic control experiment table manufacturer is more famous has U.S. Link company and a Greening company, German Schenck company etc., and also there are correlative study and patented claim in domestic Beijing Institute of Technology etc.Existing automobile ABS testing table is mainly tested the control performance of ABS through damping force between measurement wheel and the rotary drum and slip rate; Existing automobile ASR testing table is mainly through measuring driving force and the slippage rate test ASR control performance between wheel and the rotary drum; There are deficiencies such as sliding wear is serious between wheel and the rotary drum, tire wear fast, the test noise is big, seriously polluted, function singleness in existing automobile ABS, ASR control performance test method.For improving experimental performance, the present invention proposes a kind of low sliding wear automobile ABS/ASR comprehensive test system.
Summary of the invention
There are between wheel and the rotary drum deficiencies such as sliding wear is serious, function singleness for overcoming existing ABS/ASR control performance test method; Meet the requirement of energy-saving and environmental protection, the present invention proposes a kind of low sliding wear automobile ABS/ASR comprehensive test system that can carry out automobile ABS, ASR performance test respectively.
Said low sliding wear automobile ABS/ASR comprehensive test system is made up of the forward and backward shaft experiment platform that structure is identical; Forward and backward shaft experiment platform is identical by function respectively again, the two left and right testing tables of taking turns of structural symmetry are formed, and four wheel testing tables can independently be controlled, like Fig. 1, shown in 2; With the near front wheel testing table (testing table of other three wheels is formed identical) is example, and it is by flywheel (1), braking drive transmission (2), slippage torque control unit (3), shaft joint (4), torque rotary speed sensor (5), the 3rd rotary drum (6), front and back rotary drum gearings (7), frame (8), back rotary drum (9), rotary drum braking lifting table and weighing unit (10), preceding rotary drum (11), brake (12), flywheel speed probe (13) and vehicle stationary charger (14). form; Slippage torque control unit (3) is made up of relatively turnable drive end and driven end, the effect torque between the may command two ends; The drive end of flywheel (1), slippage torque control unit (3), brake (12) are rotated through braking drive transmission (2) together, and be consistent through the theoretical vehicle wheel rotational speed that obtains according to the core wheel speed of a motor vehicle in brake (12) control flywheel rotating speed and car brakeing (or driving) process; The driven end of slippage torque control unit (3), shaft joint (4), torque rotary speed sensor (5), preceding rotary drum (11) and back rotary drum (9) rotate through front and back rotary drum gearings (7) together; During test; Wheel is placed on the front and back rotary drums (11) and (9); Wheel is braked (or driving); Threshold friction through increasing between wheel and the rotary drum makes it greater than the actual damping force (or driving force) that produces in wheel braking (or driving) process, to reduce the slip rate (or slippage rate) between them, promptly reduces the sliding wear between wheel and the rotary drum; Act on the actual braking force (or driving force) that produces between torque may command wheel and the rotary drum of rotary drum end through control slippage torque control unit (3), can carry out different road surfaces through the actual force between control wheel and the rotary drum and adhere to the ABS/ASR performance test under the operating mode; The drive end of slippage torque control unit (3) and driven end allow to exist bigger speed discrepancy; Make slip rate (or slippage rate) between wheel and the rotary drum much smaller than the slip rate (or slippage rate) at slippage torque control unit (3) two ends, the slip rate (or slippage rate) of ABS (or ASR) control mainly is presented as the drive end and the slip rate between the driven end (or slippage rate) of slippage torque control unit (3); Can record the damping force (or driving force) between rotary drum and the wheel through torque sensor; Record the control signal of damping force (or driving force), slip rate (or slippage rate) and test vehicle ABS (or ASR) system between rotary drum and the wheel thus through test, can accomplish automobile ABS, ASR performance test.
Said low sliding wear automobile ABS/ASR comprehensive test system; It is characterized in that; Increasing wheel weight through vehicle stationary charger (14) increases the normal force between wheel and the rotary drum and passes through to increase the friction factor between wheel and the rotary drum; Increase the threshold friction that produces between wheel and the rotary drum; The torque that its breakdown torque that rotary drum is formed is produced much larger than slippage torque control unit (3); Thereby make in process of the test the slip rate (or slippage rate) between the test wheel and rotary drum much smaller than the slip rate (or slippage rate) between slippage torque control unit (3) two ends; The slip rate (or slippage rate) of ABS (or ASR) control mainly is presented as the drive end and the slip rate between the driven end (or slippage rate) of slippage torque control unit (3), has therefore avoided between wheel and the rotary drum because vibration, noise, tire wear and dust pollution that big sliding wear produces.
Said low sliding wear automobile ABS/ASR comprehensive test system; It is characterized in that; Act on the torque may command wheel of rotary drum end and the actual force between the rotary drum through control slippage torque control unit (3); Be the damping force (or driving force) of wheel to rotary drum, the damping force (or driving force) of adhering under the condition to be produced on its damping force (or driving force) size is corresponding actual road surface; Big corresponding the road surface of big attachment coefficient of the damping force of being controlled (or driving force), otherwise, corresponding the road surface of low attachment coefficient; Therefore can carry out different road surfaces and adhere to ABS, ASR performance test under the operating mode through the actual force between slippage torque control unit (3) control wheel and the rotary drum.
Said low sliding wear automobile ABS/ASR comprehensive test system is characterized in that, can record the slip rate (or slippage rate) of ABS (or ASR) control through the slip rate between experiment with measuring wheel and the flywheel (or slippage rate); Theoretical vehicle wheel rotational speed through obtaining according to the core wheel speed of a motor vehicle in brake (12) control flywheel rotating speed and car brakeing (or driving) process is consistent; Test wheel wheel speed is by the control of test vehicle ABS (or ASR) system, so the slip rate between test wheel and the flywheel (or slippage rate) is the slip rate (or slippage rate) of ABS (or ASR) control.
Description of drawings
Fig. 1 is low sliding wear automobile ABS/ASR comprehensive test system vertical view, and Fig. 2 is low sliding wear automobile ABS/ASR comprehensive test system side view.Among the figure, (1). flywheel, (2). braking drive transmission, (3). slippage torque control unit, (4). shaft joint, (5). torque rotary speed sensor, (6). the 3rd rotary drum, (7). front and back rotary drum gearing, (8). frame, (9). back rotary drum, (10). rotary drum braking lifting table and weighing unit, (11). preceding rotary drum, (12). brake, (13). flywheel speed probe, (14). the vehicle stationary charger.
Embodiment
Specify the present invention below in conjunction with accompanying drawing.
Low sliding wear automobile ABS/ASR comprehensive test system is made up of the identical forward and backward shaft experiment platform of structure; Forward and backward shaft experiment platform is identical by function respectively again, the two left and right testing tables of taking turns of structural symmetry are formed, and four wheel testing tables can independently be controlled; As shown be the near front wheel testing table (testing table of other three wheels is formed identical), by flywheel (1) braking drive transmission (2), slippage torque control unit (3), shaft joint (4), torque rotary speed sensor (5), the 3rd rotary drum (6), front and back rotary drum gearings (7), frame (8), back rotary drum (9), rotary drum braking lifting table and weighing unit (10), preceding rotary drum (11), brake (12), flywheel speed probe (13) and vehicle stationary charger (14).
1. automobile ABS test
When carrying out the automobile ABS test; Require to place each test wheel opsition dependent on the corresponding drum dynamometer front and back rotary drum; The in-position requires the back to increase the normal force between each test wheel and the rotary drum through pretension vehicle stationary charger (14); Handle the friction factor between increase wheel and the rotary drum through rotary drum being glued sand or welding slag, thereby increased the threshold friction between wheel and the rotary drum.
Test ready after, open testing table, ins conjunction with slippage torque control unit (3), make the combination of its drive end and driven end; Starting brake (12) driving flywheel (1), slippage torque control unit (3), shaft joint (4), torque rotary speed sensor (5), preceding rotary drum (11), back rotary drum (9) and test wheel rotates together; When treating that vehicle wheel rotational speed reaches the initial speed of braking of testing requirements, the corresponding wheel braking force of condition is adhered to, the torque between the master and slave moved end of control slippage torque control unit (3) in the road surface that equals to test setting by the damping force that drum surface is formed; Through test vehicle ABS system test wheel is braked; Theoretical vehicle wheel rotational speed through obtaining according to the core wheel speed of a motor vehicle in brake (12) control flywheel rotating speed and the car brakeing process is consistent; Until test wheel, flywheel and rotary drum stall, off-test.
Record through torque rotary speed sensor (5) in the process of the test that rotary drum rotating speed and slippage torque control unit (3) affact the torque on the rotary drum in the process of the test, thereby can obtain the damping force that test wheel acts on drum surface; Record flywheel rotating speed in the process of the test through flywheel speed probe (13); Promptly Be Controlled is consistent with the theoretical vehicle wheel rotational speed that obtains according to the core wheel speed of a motor vehicle in braking procedure; The 3rd rotary drum (6) keeps in touch with test wheel and wheel rotates synchronously; The 3rd rotary drum (6) can record the wheel actual speed, therefore can record the slip rate between test wheel and the flywheel through the rotating speed of flywheel rotating speed and the 3rd rotary drum (6); Test records the control signal of damping force, slip rate and the test vehicle ABS system of test wheel, can accomplish the performance of ABS test.
2. automobile ASR test
When carrying out automobile ASR test; Require to place each test wheel opsition dependent on the corresponding drum dynamometer front and back rotary drum; The in-position requires the back to increase the normal force between each test wheel and the rotary drum through pretension vehicle stationary charger (14); Handle the friction factor between increase wheel and the rotary drum through rotary drum being glued sand or welding slag, thereby increased the threshold friction between wheel and the rotary drum.
Test ready after, open testing table, rotate through test vehicle ASR system drive test wheel, test wheel drives rotary drum and slippage torque control unit (3) driven end rotates together; The corresponding wheel drive power of condition is adhered to, the torque between the master and slave moved end of control slippage torque control unit (3) in the road surface that equals to test setting by the driving force that drum surface is formed; Torque through control brake drive unit (12); The theoretical vehicle wheel rotational speed that obtains according to the core wheel speed of a motor vehicle in control flywheel rotating speed and the vehicle traction process is consistent; Reach the rotating speed of testing requirements until test wheel; Test vehicle ASR system stops to drive test wheel, and testing table stops the acquisition test data, in conjunction with the master and slave moved end of slippage torque control unit (3); Through rotary drum braking lifting table (10) braking rotary drum, wheel, slippage torque control unit (3), flywheel and brake (12) stall, finish test.
Record through torque rotary speed sensor (5) in the process of the test that rotary drum rotating speed and slippage torque control unit (3) affact the torque on the rotary drum in the process of the test, thereby can obtain the driving force that test wheel acts on drum surface; Record flywheel rotating speed in the process of the test through flywheel speed probe (13); Promptly Be Controlled is consistent with the theoretical vehicle wheel rotational speed that obtains according to the core wheel speed of a motor vehicle in the driving process; The 3rd rotary drum (6) keeps in touch with test wheel and wheel rotates synchronously; The 3rd rotary drum (6) can record the wheel actual speed, therefore can record the slippage rate of test wheel through the rotating speed of flywheel rotating speed and the 3rd rotary drum (6); Test records the control signal of driving force, slippage rate and the test vehicle ASR system of test wheel, can accomplish the performance test of automobile ASR.
Claims (3)
1. one kind low sliding wear automobile ABS/ASR comprehensive test system is made up of the forward and backward shaft experiment platform that structure is identical; Forward and backward shaft experiment platform is identical by function respectively again, the left and right testing table of taking turns of structural symmetry is formed, and four wheel testing tables can independently be controlled; Wherein, the near front wheel testing table comprises flywheel (1), braking drive transmission (2), slippage torque control unit (3), shaft joint (4), torque rotary speed sensor (5), the 3rd rotary drum (6), front and back rotary drum gearings (7), back rotary drum (9), preceding rotary drum (11), brake (12) and vehicle stationary charger (14); Slippage torque control unit (3) is made up of relatively turnable drive end and driven end, the effect torque between the may command two ends; The drive end of slippage torque control unit (3), flywheel (1) and brake (12) are rotated through braking drive transmission (2) together; The driven end of slippage torque control unit (3), shaft joint (4), torque rotary speed sensor (5), preceding rotary drum (11) and back rotary drum (9) rotate through front and back rotary drum gearings (7) together; It is characterized in that: the slip rate of ABS or ASR control or drive end and slip rate between the driven end or the slippage rate that slippage rate mainly is presented as slippage torque control unit (3); During test, wheel is placed on preceding rotary drum (11) and the back rotary drum (9), and wheel is braked or driven; Increase wheel weight through pretension vehicle stationary charger (14), increase the normal force between wheel and the rotary drum, thereby increase the threshold friction between wheel and the rotary drum; Make threshold friction act on the torque on the rotary drum much larger than slippage torque control unit (3) to the limit resultant torque that rotary drum forms; Thereby make in process of the test slip rate between the wheel and rotary drum or slippage rate much smaller than slip rate or slippage rate between slippage torque control unit (3) two ends; To reduce slip rate or the slippage rate between wheel and the rotary drum, promptly reduce the sliding wear between wheel and the rotary drum.
2. a kind of low sliding wear automobile ABS according to claim 1/ASR comprehensive test system; It is characterized in that; Act on the torque may command wheel of rotary drum end and the actual force between the rotary drum through control slippage torque control unit (3); Be damping force or the driving force of wheel to rotary drum, the damping force or the driving force of adhering under the condition to be produced on its damping force or driving force size is corresponding actual road surface; Big corresponding the road surface of big attachment coefficient of damping force of being controlled or driving force, otherwise, corresponding the road surface of low attachment coefficient; Therefore can carry out different road surfaces and adhere to ABS, ASR performance test under the operating mode through the actual force between slippage torque control unit (3) control wheel and the rotary drum.
3. a kind of low sliding wear automobile ABS according to claim 1/ASR comprehensive test system is characterized in that, can record the slip rate or the slippage rate of ABS or ASR control through slip rate between experiment with measuring wheel and the flywheel or slippage rate; Theoretical vehicle wheel rotational speed through obtaining according to the core wheel speed of a motor vehicle in brake (12) control flywheel rotating speed and car brakeing or the driving process is consistent; The test wheel actual speed of a wheel is by test vehicle ABS or the control of ASR system; Can record through the 3rd rotary drum (6), so the slip rate between test wheel and the flywheel or slippage rate are the slip rate or the slippage rate of ABS or the control of ASR system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105293104A CN102042894B (en) | 2010-10-28 | 2010-10-28 | ABS (antilock brake system)/ASR (acceleration slip regulation) comprehensive testing system for low friction vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105293104A CN102042894B (en) | 2010-10-28 | 2010-10-28 | ABS (antilock brake system)/ASR (acceleration slip regulation) comprehensive testing system for low friction vehicle |
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| Publication Number | Publication Date |
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| CN102042894A CN102042894A (en) | 2011-05-04 |
| CN102042894B true CN102042894B (en) | 2012-07-04 |
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| CN2010105293104A Expired - Fee Related CN102042894B (en) | 2010-10-28 | 2010-10-28 | ABS (antilock brake system)/ASR (acceleration slip regulation) comprehensive testing system for low friction vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI472451B (en) * | 2012-08-30 | 2015-02-11 | Nat Univ Chung Hsing | System of braking force adjusting scheme for electronic anti-locking braking system (abs) |
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| CN104849064A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Vehicle test method employing chassis dynamometer and drum adhering force adjusting method |
| CN107576863B (en) * | 2017-06-05 | 2024-04-19 | 上海大学 | Vehicle power safety simulation test system |
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