CN100586749C - Method and apparatus for distributing loads between axles of a vehicle - Google Patents

Method and apparatus for distributing loads between axles of a vehicle Download PDF

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Publication number
CN100586749C
CN100586749C CN200580039608A CN200580039608A CN100586749C CN 100586749 C CN100586749 C CN 100586749C CN 200580039608 A CN200580039608 A CN 200580039608A CN 200580039608 A CN200580039608 A CN 200580039608A CN 100586749 C CN100586749 C CN 100586749C
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load
axle
vehicle
value
limit value
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CN200580039608A
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CN101061003A (en
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T·库普斯
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Scania CV AB
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Scania CV AB
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G5/00—Resilient suspensions for a set of tandem wheels or axles having interrelated movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
    • B60G17/0155—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit pneumatic unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/016—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/018—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/60—Load
    • B60G2400/61—Load distribution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/60—Load
    • B60G2400/64—Wheel forces, e.g. on hub, spindle or bearing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

在将负载分配在车辆的至少两个车桥之间的方法中，车桥负载通常处于它们各自的正常值，感测车辆速度和车桥负载。在车辆速度＝第一限定值时，将至少一个第一车桥上的负载增大到第一预定值，并且减小至少一个第二车桥上的负载。如果所述至少一个第二车桥上的负载＝第二预定值，则保持所述至少一个第一车桥上的已增大的负载和所述至少一个第二车桥上的已减小的负载。如果在车辆速度＝第二限定值时所述至少一个第二车桥上的负载＜＝第二预定值，则将所述至少一个第一车桥上的负载减小到其正常值，并且将所述至少一个第二车桥上的负载增大到其正常值。

Figure 200580039608

In a method of distributing loads between at least two axles of a vehicle, the axle loads being normally at their respective normal values, the vehicle speed and the axle loads are sensed. At vehicle speed=first defined value, the load on the at least one first axle is increased to a first predetermined value, and the load on the at least one second axle is decreased. If the load on the at least one second axle = a second predetermined value, then maintain the increased load on the at least one first axle and the reduced load on the at least one second axle load. If the load on the at least one second axle <= second predetermined value when vehicle speed = second limit value, then reduce the load on the at least one first axle to its normal value, and set The load on the at least one second axle increases to its normal value.

Figure 200580039608

Description

Be used between the vehicle bridge of vehicle, distributing the method and apparatus of load
Technical field
The present invention relates generally to vehicle, and more specifically relate to a kind of method and apparatus that is used between the vehicle bridge of vehicle, distributing load.
Background technology
In having the vehicle of bogie truck, for example have or do not have the city motor bus and the truck of trailer, with during turning than low velocity, especially in city traffic, tire wear is very remarkable.
Summary of the invention
The objective of the invention is to propose a kind of method and apparatus that is used to reduce tire wear.
Distributing between at least two vehicle bridge at vehicle according to the present invention in the method for load, axle load is in their normal values separately usually, this realizes by senses vehicle speed and axle load, when car speed≤first limit value, load at least one first vehicle bridge is increased to first predetermined value, and reduce the load at least one second vehicle bridge, if load 〉=second predetermined value on described at least one second vehicle bridge, then keep increased load on described at least one first vehicle bridge and the load that has reduced on described at least one second vehicle bridge, if and when car speed 〉=second limit value load＜second predetermined value on described at least one second vehicle bridge, then the load on described at least one first vehicle bridge is reduced to its normal value, and the load on described at least one second vehicle bridge is increased to its normal value.
In one embodiment, car speed≤predetermined very first time section of described first limit value after, increase the load on described at least one first vehicle bridge and reduce load on described at least one second vehicle bridge.
In one embodiment, car speed 〉=described second limit value is after second predetermined time period, reduce the load on described at least one first vehicle bridge and increase load on described at least one second vehicle bridge.
In one embodiment, described second limit value 〉=described first limit value.
Purpose of the present invention also can realize by a kind of device, this device is used for distributing the device of load between at least two vehicle bridge of vehicle, this axle load is in their normal values separately usually, and described device comprises: first module is used for senses vehicle speed and axle load; Second module is used for the load at least one first vehicle bridge being increased to first predetermined value, and reducing the load at least one second vehicle bridge when car speed≤first limit value; The 3rd module if be used for load 〉=second predetermined value on described at least one second vehicle bridge, then keeps increased load on described at least one first vehicle bridge and the load that has reduced on described at least one second vehicle bridge; And four module, if be used for load＜second predetermined value on described at least one second vehicle bridge when car speed 〉=second limit value, then the load on described at least one first vehicle bridge is reduced to its normal value, and the load on described at least one second vehicle bridge is increased to its normal value, wherein, described car speed≤predetermined very first time section of described first limit value after, described second module increases the described load on described at least one first vehicle bridge and reduces described load on described at least one second vehicle bridge.
By means of the method and the arrangement according to the invention, with the tire wear that reduces widely on the vehicle.
Description of drawings
Below with reference to accompanying drawings the present invention is carried out more concrete introduction, in the accompanying drawings
Fig. 1 is the schematic top view according to the vehicle of the embodiment of the invention; And
Fig. 2 is the diagram of circuit that step according to one embodiment of the method for the invention is described.
The specific embodiment
Fig. 1 is a scheme drawing according to an embodiment of the invention, and it is used at the drive axle with two-wheel 21 of vehicle and has between the auxiliary vehicle bridge (tag axle) 3 of single-wheel 4 distributing load (not being shown specifically).
Vehicle can be the city motor bus that has or do not have trailer, has or does not have the truck of trailer or have the truck of superimposed trailer, perhaps any similar vehicle.
In the embodiment in figure 1, in known in fact mode,, between vehicle frame 7 and hanging beam 8, there are two air bellows 5,5 ' on the left side of vehicle, and have two air bellows 6,6 ' on the right of vehicle for drive axle 1.
For auxiliary vehicle bridge 3, same in known in fact mode, air bellow 9 and 9 ' is arranged between the vehicle frame 7 and auxiliary vehicle bridge 3 of vehicle respective side.
The air bellow 5,5 ' and 6,6 ' that is used for drive axle 1 is connected respectively to the electrically-controlled valve (not shown) of valve unit 12 by pipe 10 and 11, wherein from the compressed-air supply valve unit 12 such as sources of the gas such as compressor 13, and the air bellow 9,9 ' that is used for auxiliary vehicle bridge 3 is connected respectively to the valve of valve unit 12 by pipe 15 and 16.
Air bellow 5,5 ', 6,6 ', 9,9 ' compressed-air actuated flowing are travelled to and fro between in the control of the electrically-controlled valve of valve unit 12, the control signal that receives from computing machine 17 via wire harness 18 with response.
Computing machine 17 comprises treater 19, and this treater 19 is connected to the computer program 20 of memory cell form, and it comprises computer program 21 that is stored on the computer usable medium and another memory cell of storing the memory device 22 that is used for limit value.
Memory cell can for example be ROM, PROM, EPROM, EEPROM and flash memory.
In the embodiment in figure 1, treater 19 is connected to 23,24,25 and output ports 26 of three input ports of computing machine 17.Should be appreciated that computing machine 17 can comprise other input port and output port.
The input port 23 of computing machine 17 is connected to the corresponding output end of two pressure sensors 28,29 via lead 27, these two pressure sensors 28,29 are connected respectively to the air bellow 5 and 6 that is used for drive axle 1, will offer treater 19 about the data of air pressure with the air pressure of each air bellow 5,6 of sensing and via input port 23.
According to barometric information, treater 19 is in the load of calculating under the control of computer program 21 on the drive axle 1.
The input port 24 of computing machine 17 is connected to the corresponding output end of two pressure sensors 31,32 via lead 30, and these two pressure sensors 31,32 are connected respectively to the air bellow 9 that is used for auxiliary vehicle bridge 3 and 9 ' will offer treater 19 about the data of air pressure with each air bellow of sensing 9,9 ' air pressure and via input port 24.
According to barometric information, treater 19 is in the load of calculating under the control of computer program 21 on the auxiliary vehicle bridge 3.
The input port 25 of computing machine 17 is suitable for receiving the vehicle velocity signal S of expression car speed.
According to the present invention, in memory device 22, set the first and second predetermined vehicle speed limit values.The first car speed limit value for example 30km/h can be set at, and the second car speed limit value for example 60km/h can be set at.It should be understood, however, that the second car speed limit value can be identical with the first car speed limit value.
According to the present invention, in memory device 22, set the predetermined limit definite value of drive axle load and the predetermined limit definite value of auxiliary axle load equally.
Under the nominal situation of vehicle, the load on drive axle 1 and the auxiliary vehicle bridge 3 remains on by the determined normal value of air bellow characteristic.Usually, utilize valve unit 12, the air pressure in all air bellows 5,5 ', 6,6 ', 9,9 ' is kept identical.
With reference to the diagram of circuit of figure 2, introduce the embodiment of the method according to this invention.
In the step S 1 of Fig. 2, the data that treater 19 among Fig. 1 receives about the air pressure in the air bellow 5,6 of drive axle via input port 23, receive the data of the air pressure in the air bellow 9,9 ' about auxiliary vehicle bridge via input port 24, and the data that receive about car speed via the input port 25 of computing machine 17.
Suppose: in step S1, keep static when vehicle begins.
According to the present invention, tire wear for the wheel 4 of the auxiliary vehicle bridge 3 among the embodiment that for example reduces Fig. 1 particularly, when it is turned with low speed, when the load on the drive axle 1 is increased to the predetermined value that sets in the memory device 22, reduce the load on the auxiliary vehicle bridge 3.
In order to realize this purpose, in step S2, enquiring vehicle speed whether≤first limit value, i.e. 30km/h in the present embodiment.
If replying of the inquiry among the step S2 is "No", then axle load is remained on their normal value constant.
If replying of the inquiry among the step S2 is "Yes", then in step S3, treater 19 valve of by-pass valve control unit 12 in such a manner under the control of computer program 21, the air bellow 9 of feasible auxiliary vehicle bridge 3,9 ' via pipe 15,16 venting are to reduce the air bellow 9 of auxiliary vehicle bridge, air pressure in 9 ', thereby reduce auxiliary axle load, simultaneously the air bellow 5 of drive axle 1,5 ', 6,6 ' via pipe 10,11 inflations are to increase the air bellow 5 of drive axle, 5 ', 6, air pressure in 6 ' is to increase to the predetermined value that sets in the memory device 22 with the drive axle load thus.When the pressure in the air bellow 5,5 ', 6,6 ' reach with memory device 22 in the maximum set when allowing the pairing set pressure of load, stop auxiliary vehicle bridge air bellow 9,9 ' venting.
Preferably,, be equal to or less than predetermined very first time section of 30km/h up to car speed in order to make the air consumption minimum, for example several seconds, just increase the load on the drive axle 1 and reduce load on the auxiliary vehicle bridge 3.
In step S4, the load on the auxiliary vehicle bridge 3 of inquiry whether 〉=predetermined value that sets in the memory device 22, this predetermined value is corresponding with the load at the satisfactory place of vehicle performance.
If replying of the inquiry among the step S4 is "Yes", then keep the load of drive axle load that from step S3, increases and the auxiliary vehicle bridge that reduces.
If replying of the inquiry among the step S4 is "No", that is, the load＜predetermined value of auxiliary vehicle bridge, then in step S5 enquiring vehicle speed whether 〉=second limit value that sets in the memory device 22, i.e. 60km/h in the present embodiment.
If replying of the inquiry among the step S5 is "No" then to keep the axle load among the step S3.
If replying of the inquiry among the step S5 is "Yes", promptly, treater 19 detects car speed 〉=60km/h via input port 25 from vehicle velocity signal S, then in step S6, treater 19 valve of by-pass valve control unit 12 in such a manner under the control of computer program 16, the air bellow 9 of feasible auxiliary vehicle bridge 3,9 ' via pipe 15,16 inflations are to increase the air bellow 9 of auxiliary vehicle bridge, 9 ' air pressure, thereby the load that will assist vehicle bridge increases to its normal value, the air bellow 5 of while drive axle 1,5 ', 6,6 ' via pipe 10,11 venting are to reduce the air bellow 5 of drive axle, 5 ', 6, air pressure in 6 ', thus the load of drive axle is reduced to its normal value.Thereby the load distribution between the vehicle bridge turns back to normal allocation.
Preferably, in order to make the air consumption minimum, be equal to or higher than second a predetermined time period of 60km/h (can equal first predetermined amount of time) up to car speed, promptly several seconds, just increased the load on the auxiliary vehicle bridge 3 and reduce load on the drive axle 1.
Then, pressure in the air bellow 5,5 ', 6,6 ', 9,9 ' is remained on their normal values separately, up to next time in step S2, treater detects car speed and is equal to or less than 30km/h once more, the first speed limit value that promptly sets in the memory device 22.
As mentioned above, the second speed limit value can be equal to or higher than the first speed limit value.
Utilize the present invention, in described embodiment, reduced the tire wear on auxiliary vehicle bridge especially.
The present invention is applicable to the vehicle with bogie truck that comprises two above vehicle bridge too.
Embodiment
In the city motor bus that for example is in weight when empty, promptly have actuator, total mass is that load distribution is as follows in the unloaded city motor bus of 14300kg: propons 4200kg, drive axle 5800kg, and auxiliary vehicle bridge 4300kg.
When using when of the present invention, promptly with low speed, for example when car speed≤30km/h, load distribution is as follows: propons 3400kg, drive axle 9500kg (predetermined value), and auxiliary vehicle bridge 1400kg.
The load that this means auxiliary vehicle bridge has reduced near 70%, and these abrasion that hinting auxiliary vehicle bridge tire will reduce.

Claims (6)

1、一种在车辆的至少两个车桥之间分配负载的方法，该车桥负载通常处于它们各自的正常值，并且其中：1. A method of distributing loads between at least two axles of a vehicle, the axle loads being normally at their respective normal values, and wherein: -感测车辆速度和车桥负载，- sensing vehicle speed and axle load, -在车辆速度≤第一限定值时，将至少一个第一车桥上的所述负载增大到第一预定值，并且减小至少一个第二车桥上的所述负载，- increasing said load on at least one first axle to a first predetermined value and reducing said load on at least one second axle at vehicle speed≦first limit value, -如果所述至少一个第二车桥上的所述负载≥第二预定值，则保持所述至少一个第一车桥上的已增大的负载和所述至少一个第二车桥上的已减小的负载，以及- if said load on said at least one second axle ≥ a second predetermined value, maintaining the increased load on said at least one first axle and the increased load on said at least one second axle reduced load, and -如果所述至少一个第二车桥上的所述负载＜所述第二预定值，则在车辆速度≥第二限定值时，将所述至少一个第一车桥上的所述负载减小到其正常值，并且将所述至少一个第二车桥上的所述负载增大到其正常值，其特征在于，在所述车辆速度已经≤所述第一限定值且持续一个预定的第一时间段之后，增大所述至少一个第一车桥上的所述负载并且减小所述至少一个第二车桥上的所述负载。- if said load on said at least one second axle < said second predetermined value, at vehicle speed > second limit value, reduce said load on said at least one first axle to its normal value, and increase said load on said at least one second axle to its normal value, characterized in that, when said vehicle speed has been ≤ said first limit value for a predetermined second After a period of time, the load on the at least one first axle is increased and the load on the at least one second axle is decreased. 2、根据权利要求1所述的方法，其特征在于，在所述车辆速度已经≥所述第二限定值且持续一个预定的第二时间段之后，减小所述至少一个第一车桥上的所述负载并且增大所述至少一个第二车桥上的所述负载。2. The method according to claim 1, characterized in that after the vehicle speed has been ≥ the second limit value for a predetermined second time period, reducing the speed on the at least one first axle and increasing the load on the at least one second axle. 3、根据权利要求1-2中任一项所述的方法，其特征在于，所述第二限定值≥所述第一限定值。3. The method according to any one of claims 1-2, characterized in that, the second limit value≥the first limit value. 4、一种在车辆的至少两个车桥之间分配负载的装置，该车桥负载通常处于它们各自的正常值，所述装置包括：4. An apparatus for distributing loads between at least two axles of a vehicle, the axle loads being normally at their respective normal values, said apparatus comprising: -第一模块，用于感测车辆速度和车桥负载，- first module for sensing vehicle speed and axle load, -第二模块，用于在车辆速度≤第一限定值时，将至少一个第一车桥上的所述负载增大到第一预定值，并且减小至少一个第二车桥上的所述负载，- a second module for increasing said load on at least one first axle to a first predetermined value and reducing said load on at least one second axle when vehicle speed ≤ first limit value load, -第三模块，用于如果所述至少一个第二车桥上的所述负载≥第二预定值，则保持所述至少一个第一车桥上的已增大的负载和所述至少一个第二车桥上的已减小的负载，以及- a third module for maintaining the increased load on said at least one first axle and said at least one second axle if said load on said at least one second axle > second predetermined value reduced load on the second axle, and -第四模块，用于如果所述至少一个第二车桥上的所述负载＜所述第二预定值，则在车辆速度≥第二限定值时，将所述至少一个第一车桥上的所述负载减小到其正常值，并且将所述至少一个第二车桥上的所述负载增大到其正常值，- a fourth module for, if said load on said at least one second vehicle axle < said second predetermined value, when vehicle speed ≥ second limit value, load said at least one first vehicle axle reducing said load on said at least one second axle to its normal value, and increasing said load on said at least one second axle to its normal value, 其中，在所述车辆速度已经≤所述第一限定值且持续一个预定的第一时间段之后，所述第二模块增大所述至少一个第一车桥上的所述负载并且减小所述至少一个第二车桥上的所述负载。Wherein, after the vehicle speed has been ≤ the first limit value for a predetermined first time period, the second module increases the load on the at least one first axle and decreases the said load on said at least one second axle. 5、根据权利要求4所述的装置，其中在所述车辆速度已经≥所述第二限定值且持续一个预定的第二时间段之后，所述第四模块减小所述至少一个第一车桥上的所述负载并且增大所述至少一个第二车桥上的所述负载。5. The apparatus of claim 4, wherein said fourth module reduces said at least one first vehicle speed after said vehicle speed has been ≥ said second limit value for a predetermined second time period. said load on the axle and increases said load on said at least one second axle. 6、根据权利要求4-5中任一项所述的装置，其中，所述第二限定值≥所述第一限定值。6. The device according to any one of claims 4-5, wherein the second limit value ≥ the first limit value.
CN200580039608A 2004-11-18 2005-11-10 Method and apparatus for distributing loads between axles of a vehicle Expired - Fee Related CN100586749C (en)

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SE04028288 2004-11-18
SE0402828A SE527908C2 (en) 2004-11-18 2004-11-18 Procedure and computer program for load distribution between the axles of a vehicle

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CN100586749C true CN100586749C (en) 2010-02-03

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FR2948621B1 (en) * 2009-07-29 2011-10-21 Michelin Soc Tech VEHICLE COMPRISING AT LEAST TWO AXLES AND METHOD OF DISTRIBUTING THE LOAD BETWEEN SAID AT LEAST TWO AXLES.
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Publication number Priority date Publication date Assignee Title
CN107000530A (en) * 2014-12-12 2017-08-01 德纳重型车辆系统集团有限责任公司 Dynamic Weight Transfer Suspension System

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CN101061003A (en) 2007-10-24
BRPI0518309A2 (en) 2008-11-11
WO2006054940A1 (en) 2006-05-26
SE527908C2 (en) 2006-07-04
SE0402828L (en) 2006-05-19
AU2005307153B2 (en) 2011-02-17
EP1819537A1 (en) 2007-08-22

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