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本帖最后由 Jena 于 2015-10-24 23:19 编辑
我的理解是CRV没有中央差速器，而是
This is achieved by a hydraulic torque-split system, consisting of a conventional front-wheel drive arrangement, complete with transfer case, a propeller shaft running the length of the vehicle and a Dual Pump system integrated with the rear differential. This is the heart of the system and comprises two hydraulic pumps, one driven by the front wheels via the prop shaft, the other by the rear wheels via the rear differential.
torque-split是靠hydraulic控制的（也就是dual pump），而不是hydralic coupled(hydralic coupled的例子，比如torque converter, viscous limited slip differential)。我猜测CR-V的transfer case也不是独立的，而是和front differential一起集成在transmission里了。挺难分清楚的。
front differential aassembly (#1 transfer drive, 我猜测接上了transfer case assembly的左边的输入轴)
transfer case assembly
hydraulic pressure proportional to the difference in their speeds is generated, which in turn opens a valve body and activates a mechanical, multi-plate clutch. This clutch then connects the front prop shaft to the rear diff, which feeds precisely the correct amount of torque to the rear wheels to re-establish overall traction.
multi-plate clutch是集成在rear differential一起的，平时disengage，当dual pumps的压力不一致，会施加给multi-plate clutch进而传输一部分动力到后轮。
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发表于 2015-10-23 23:40
发表于 2015-10-25 14:56