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Drive train of an all-wheel drive vehicle comprising clutches and method for controlling and regulating a drive train

An all-wheel drive and drive train technology, applied in control devices, power units, vehicle components, etc., can solve problems such as poor drive train efficiency, and achieve the effect of improving efficiency and flexibility

Inactive Publication Date: 2006-11-15
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, this has the disadvantage that the slipping operation of the clutch results in a variable torque distribution on the drive train, which impairs the efficiency of such a drive train

Method used

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  • Drive train of an all-wheel drive vehicle comprising clutches and method for controlling and regulating a drive train
  • Drive train of an all-wheel drive vehicle comprising clutches and method for controlling and regulating a drive train
  • Drive train of an all-wheel drive vehicle comprising clutches and method for controlling and regulating a drive train

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Embodiment Construction

[0028] figure 1 A drive train 1 of an all-wheel drive vehicle is shown schematically. The drive train 1 comprises a power unit 2 and a main transmission 3, which may be any transmission known per se from practice. power unit 2 in figure 1 In the exemplary embodiment shown, it is designed as an internal combustion engine and, in an advantageous refinement, can also be designed as an electric motor.

[0029] Between the main transmission 3 for producing different transmission ratios and the first driveable vehicle shaft 4 connected in known manner to at least one drive wheel 4A, 4B on any vehicle side, a first clutch is arranged in the longitudinal drive train 1_HA k_HA. The first clutch k_HA is arranged between the main transmission 3 and a device 6 for compensating the differential speed between the drive wheels 4A and 4B of the first vehicle axle 4 , wherein the device 6 is designed as a transverse transfer known per se.

[0030] Furthermore, a second clutch k_HA_L or a t...

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Abstract

The invention relates to the drive train (1) of an all-wheel drive vehicle comprising at least two driven vehicle axles (4, 5), a main transmission (3) for obtaining different ratios of transmission interposed between a drive machine (2) and the vehicle axles (4, 5), and three controlled and regulated friction clutches (k_VA, k_HA_L, k_HA_R). A first clutch (k_VA) is interposed between the main transmission (3) and a first vehicle axle (4). A second clutch (k_HA_L) and a third clutch (k_HA_R) are interposed between a final drive (7) and a drive wheel (5A, 5B) of the second vehicle axle (5). The transmissibilities of the clutches (k_VA, k_HA_L, k_HA_R) can be adjusted via an actuator system (8) and a driving torque is distributed between the driven vehicle axles (4, 5) depending on the adjusted transmissiblities of the clutches (k_VA, k_HA_L, k_HA_R).

Description

technical field [0001] The invention relates to a transmission for an all-wheel drive vehicle with at least two driveable vehicle axles and a main transmission arranged between the engine and the vehicle axles, and to a system for controlling and regulating such a drive train Methods. Background technique [0002] In practically known motor vehicles, the transmission torque of the drive train generated by the engine is fed into the transmission and is fed to the drive wheels of the motor vehicle in an amount that is converted correspondingly to the transmission ratio set in the transmission. In the case of vehicles with several driveable vehicle axles, such as PKWs with all-wheel drive or LKWs with all-wheel drive, the power of the engine is distributed in the drive train of such vehicles to the respective power-connected vehicle axles. [0003] The power distribution is usually carried out by means of a so-called differential, wherein a longitudinal differential, seen in t...

Claims

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Application Information

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IPC IPC(8): B60K23/08B60K1/00F16D48/06
CPCB60K23/0808B60K1/00F16D48/062F16D48/064F16D2500/1025F16D2500/10412F16D2500/10431F16D2500/1045F16D2500/507F16D2500/7041F16D2500/70434F16D2500/7044
Inventor 德特勒夫·巴施格哈德·贡波尔特斯贝格尔克里斯托夫·佩尔兴巴巴拉·施莫尔乌尔里希·迈尔托马斯·罗泽迈尔
Owner ZF FRIEDRICHSHAFEN AG
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