1. A control device for an automatic transmission which transits from a non-running state to a running state by a friction engaging element which is operated by oil pressure transiting from a state in which it is released to a state in which it is engaged, comprising:
a shift position detection unit which detects shift positions, including a first shift position which corresponds to the non-running state and a second shift position which corresponds to the running state, based upon the position of a shift actuation mechanism; and
an oil pressure control unit which raises the oil pressure supplied to the friction engaging element, when the shift position detection unit detected that the shift position is the first shift position.
2. A control device for an automatic transmission according to claim 1, further comprising:
a running request detection unit which detects a running request if, irrespective of whether or not the position of the shift actuation mechanism is a position which corresponds to the second shift position, the shift position detection unit cannot detect that the position of the shift actuation mechanism is the second shift position; and
a starting control unit which, if a running request is detected, raises the oil pressure supplied to the friction engaging element, until the friction engaging element is brought to a power transmission state.
3. A control device for an automatic transmission according to claim 1, further comprising:
a running request detection unit which detects a running request if, irrespective of whether or not the position of the shift actuation mechanism is a position which corresponds to the second shift position, the shift position detection unit detects that the position of the shift actuation mechanism is the first shift position; and
a starting control unit which, if a running request is detected, raises the oil pressure supplied to the friction engaging element, until the friction engaging element is brought to a power transmission state.
4. A control device for an automatic transmission according to claim 2, further comprising:
an output shaft rotational speed detection unit which detects the output shaft rotational speed of the automatic transmission; and
an oil pressure control unit which raises the oil pressure supplied to the friction engaging element to maximum, if the running request is detected, and if based upon the output shaft rotational speed it is decided that the vehicle is running.
5. A control device for an automatic transmission according to claim 4, further comprising a working oil temperature detection unit which detects the temperature of the working oil of the automatic transmission; and wherein the oil pressure control unit raises the oil pressure supplied to the friction engaging element, if the temperature of the working oil is lower than a predetermined temperature.
6. A control method for an automatic transmission which transits from a non-running state to a running state by a friction engaging element which is operated by oil pressure transiting from a state in which it is released to a state in which it is engaged; comprising:
detecting shift positions, including a first shift position which corresponds to the non-running state and a second shift position which corresponds to the running state, based upon the position of a shift actuation mechanism; and
raising the oil pressure supplied to the friction engaging element, when the detected shift position is the first shift position.
7. A control method for an automatic transmission according to claim 6, further comprising:
detecting a running request if, irrespective of whether or not the position of the shift actuation mechanism is a position which corresponds to the second shift position, it is not possible to detect that the position of the shift actuation mechanism is the second shift position; and
if a running request is detected, raising the oil pressure supplied to the friction engaging element, until the friction engaging element is brought to a power transmission state.
8. A control method for an automatic transmission according to claim 6, further comprising:
detecting a running request if, irrespective of whether or not the position of the shift actuation mechanism is a position which corresponds to the second shift position, it is detected that the position of the shift actuation mechanism is the first shift position; and
if a running request is detected, raising the oil pressure supplied to the friction engaging element, until the friction engaging element is brought to a power transmission state.
9. A control method for an automatic transmission according to claim 7 or claim 8, further comprising:
detecting the output shaft rotational speed of the automatic transmission; and
raising the oil pressure supplied to the friction engaging element to maximum, if the running request is detected, and if based upon the output shaft rotational speed it is decided that the vehicle is running.
10. A control method for an automatic transmission according to claim 9, further comprising:
detecting the temperature of the working oil of the automatic transmission; and
raising the oil pressure supplied to the friction engaging element, if the temperature of the working oil which is detected is lower than a predetermined temperature.
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 pressure-sensitive adhesive optical film, comprising:
an optical film comprising a transparent base film and a discotic liquid crystal layer provided on one side of the transparent base film;
an undercoat layer; and
a pressure-sensitive adhesive layer provided on the discotic liquid crystal layer with the undercoat layer interposed therebetween,
the undercoat layer comprises a polymer and an antioxidant; and
the pressure-sensitive adhesive layer comprises a (meth)acrylic polymer (A) comprising 80 to 99.5% by weight of an alkyl (meth)acrylate monomer unit and 0.05 to 3% by weight of a hydroxyl group-containing monomer unit and having a weight average molecular weight of 1,000,000 to 2,500,000;
a (meth)acrylic oligomer (B) comprising 80 to 99.9% by weight of an alkyl (meth)acrylate monomer unit and 0.1 to 3% by weight of a carboxyl group-containing monomer unit and having a weight average molecular weight of 3,000 to 8,000;
a crosslinking agent (C); and
a silane coupling agent (D), and
the pressure-sensitive adhesive layer comprises 10 to 40 parts by weight of the (meth)acrylic oligomer (B) based on 100 parts by weight of the (meth)acrylic polymer (A).
2. The pressure-sensitive adhesive optical film according to claim 1, wherein the polymer of the undercoat layer has a primary amino group.
3. The pressure-sensitive adhesive optical film according to claim 2, wherein the polymer having the primary amino group is a poly (meth)acrylate having a primary amino group at its end.
4. The pressure-sensitive adhesive optical film according to claim 1, wherein the antioxidant is at least one selected from a phenolic antioxidant, a phosphorus antioxidant, a sulfur antioxidant, and an amine antioxidant.
5. The pressure-sensitive adhesive optical film according to claim 1, wherein the undercoat layer contains 0.01 to 1000 parts by weight of the antioxidant based on 100 parts by weight of the polymer.
6. The pressure-sensitive adhesive optical film according to claim 1, wherein the optical film further comprises a polarizer and a protective film layer laminated on one side of the transparent base film where the discotic liquid crystal layer is not formed with the polarizer interposed therebetween.
7. The pressure-sensitive adhesive optical film according to claim 6, wherein the protective film layer has a water-vapor permeability of 200 gm2 per 24 hours or less at 40\xb0 C. and 90% R.H.
8. The pressure-sensitive adhesive optical film according to claim 6, wherein the protective film layer comprises a (meth)acryl-based polymer.
9. An image display, comprising at least one piece of the pressure-sensitive adhesive optical film according to claim 1.