1. A driving force control device for a four-wheel-drive vehicle, the driving force control device controls either driving force to be distributed to front wheels or driving force to be distributed to rear wheels by the driving force distribution device so that either the front wheels or the rear wheels are main drive wheels and the others are sub-drive wheels, the four-wheel-drive vehicle comprising a driving force transmission path for transmitting the driving force from a drive source to front wheels and rear wheels, and a driving force distribution device arranged between the front wheels or the rear wheels in the driving force transmission path and the drive source, the driving force control device comprising:
a four-wheel drive torque calculation unit for calculating a four-wheel drive torque to be distributed to the sub-drive wheels by the driving force distribution device,
wherein the four-wheel drive torque calculation unit performs control to restrict the upper limit of four-wheel drive torque to be distributed to the sub-drive wheels based on an estimated driving force of the vehicle and a steering angle of the vehicle.
2. The driving force control device for the four-wheel-drive vehicle according to claim 1,
wherein the upper limit of four-wheel-drive torque to be distributed to the sub-drive wheels is a search value that is searched on a prepared map for upper limit restriction, based on the value of estimated driving force of the vehicle and the value of steering angle of the vehicle, and,
wherein the search value has a tendency to become larger as the value of estimated driving force of the vehicle becomes larger, and becomes smaller as the absolute value of steering angle of the vehicle becomes larger.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for making a liquid crystal display module, comprising following steps:
providing a first polarizing layer;
laying a transparent conductive layer on a first polarizing layer surface, the transparent conductive layer being free-standing structure, and the transparent conductive layer being an anisotropic impedance layer having a relatively low impedance direction, an electrical conductivity of the anisotropic impedance layer on the relatively low impedance direction being greater than electrical conductivities of the anisotropic impedance layer on other directions;
disposing at least two driving-sensing electrodes on a transparent conductive layer surface and spaced from the first polarizing layer, the at least two driving-sensing electrodes being spaced from each other and electrically connected with the transparent conductive layer, the first polarizing layer, the at least two driving sensing electrodes, and the transparent conductive layer cooperatively form a polarizer; and
fixing the polarizer to a liquid crystal module to form the liquid crystal display module, wherein the liquid crystal module comprises an upper substrate, an upper electrode layer, a first alignment layer, a liquid crystal layer, a second alignment layer, a thin film transistor panel, and a second polarizing layer stacked in sequence;
wherein a polarizing direction of the first polarizing layer is substantially parallel to the relatively low impedance direction.
2. The method of claim 1 wherein the transparent conductive layer comprises a least one carbon nanotube film, and a majority of carbon nanotubes in the at least one carbon nanotube film are substantially aligned along a same direction.
3. The method of claim 2, wherein the at least on carbon nanotube film is a free-standing structure that is directly attached to a surface of the first polarizing layer.
4. The method of claim 2, wherein the majority of carbon nanotubes are joined end to end by van der waals attractive force therebetween.
5. The method of claim 2, wherein the majority of carbon nanotubes are substantially parallel to the first polarizing layer surface.
6. The method of claim 2, wherein the transparent conductive layer comprises a plurality of carbon nanotube films laminated with each other, aligned directions of the majority of carbon nanotubes in adjacent carbon nanotube films are perpendicular to each other.
7. The method of claim 2, wherein a polarizing direction of the first polarizing layer is parallel to an aligned direction of the majority of carbon nanotubes.
8. The method of claim 2, wherein a plurality of driving-sensing electrodes are spaced from each other and arranged in a row along a side of the at least one carbon nanotube film, perpendicular to an aligned direction of the majority of carbon nanotubes.
9. The method of claim 1, wherein the transparent conductive layer consists of carbon nanotubes.
10. The method of claim 1, wherein the polarizer further comprises a protective layer located between the first polarizing layer and the transparent conductive layer.
11. The method of claim 10, wherein the polarizer further comprises an adhesive layer, the transparent conductive layer is located between the protective layer and the adhesive layer.
12. The method of claim 1, wherein the polarizer further comprises a protective layer, the transparent conductive layer is located between the protective layer and the first polarizing layer.
13. The method of claim 12, wherein the polarizer further comprises an adhesive layer disposed on a surface of the protective layer and spaced from the transparent conductive layer.
14. The method of claim 1, wherein the transparent conductive layer is fixed to an upper substrate surface and spaced from the upper electrode layer.
15. The method of claim 1, wherein the first polarizing layer is fixed to an upper substrate surface and spaced from the upper electrode layer.