摘要:
The present invention relates to a thermostable polymer electrolyte membrane which comprises a main chain comprising an alicyclic polybenzimidazole and a graft chain added to the main chain by radiation-induced graft polymerization, wherein at least a part of the graft chain has sulfonic acid groups. The thermostable polymer electrolyte membrane of the invention is used for many apparatuses such as polymer electrolyte fuel cells or water electrolysis devices, in which the electrolyte membrane exhibits high proton conductivity, low fuel permeability, high oxidation resistance and superior mechanical property under operation conditions at high temperature. The present invention also provides a simple and low-cost process for producing the same.
摘要:
This invention provides a luminescent organic polymer metal complex represented by polyQ.M.Kn-1 (1) which is obtained by the reaction of a polymer ligand (polyQ) with an 8-hydroxyquinoline derivative introduced to its side chain through a spacer group, an 8-hydroxyquinoline derivative ligand (K) and a divalent to tetravalent metal ion (Mn+) wherein the 8-hydroxyquinoline derivative ligand (K) has a bulky substituent. This invention also provides a luminescent organic polymer metal complex composition comprising said luminescent organic polymer metal complex and additionally a low-molecular-weight ligand and a process for producing the same.
摘要翻译:本发明提供由聚合物配位体(polyQ)与引入其侧面的8-羟基喹啉衍生物反应获得的由聚(甲基)丙烯酸正丁酯(1)表示的发光有机聚合物金属络合物 8-羟基喹啉衍生物配体(K)和二价至四价金属离子(M + N +),其中8-羟基喹啉衍生物配体(K)具有庞大的取代基。 本发明还提供了包含所述发光有机聚合物金属络合物和另外的低分子量配体的发光有机聚合物金属络合物组合物及其制备方法。
摘要:
A valve body 2 is connected to a power piston, which divides a housing into a constant pressure chamber (negative pressure) and a variable pressure chamber. In the valve body 2, there is provided a brake assisting mechanism 10 between a reaction disk 3 and a plunger 9. A poppet seal 12 is opened by movement of the plunger 9, to thereby introduce atmospheric air into the variable pressure chamber and generate a thrust force in the power piston. During rapid braking, a plunger rod 23 advances relative to a sleeve 21, and balls 30 shift outward and the plunger rod 23 directly abuts against a reaction rod 22, resulting in contraction of the brake assisting mechanism 10. Therefore, the amount of movement of the plunger 9 can be increased without being affected by a reaction force from the reaction disk 3, thus enabling rapid development of servo power.
摘要:
The present invention provides a booster in which magnitude of output can be adjusted also by an operation of a solenoid mechanism. An armature (13) is shifted to the right (in FIG. 1) in opposition to a returning spring by applying electricity to a solenoid (39), with the result that a space (80) on one end of the armature is communicated with a constant pressure chamber (5) through a passage (T3). When an electromagnetic force acting on the armature (13) exceeds a predetermined value, a distal end of a valve member (28) is shifted to the right (in FIG. 1) via a cylindrical member (31) to open an atmospheric valve (34), thereby introducing the atmosphere into a variable pressure chamber (6). The pressure in the variable pressure chamber is applied to the other end of the armature and the difference in the pressure tends to move the armature toward its home position.
摘要:
A device for detecting a fault in a solenoid valve prevents a feeding system from supplying a drive current to a solenoid valve coil which actuates the solenoid valve from being damaged at the time of detection of the fault. The feeding system is provided with a first switch installed between one end of the solenoid valve coil and a battery, a second switch installed between the other end of the solenoid valve coil and a ground, and a plurality of wires for connecting the battery, the first and second switches and the solenoid valve coil. A test power supply system is connected to one end or the other end of the solenoid valve coil and supplies a micro test current to the solenoid valve coil when a current from the battery to the solenoid valve coil is cut off. A controller controls an operation of the first and second switches, and detects a fault in the feeding system on the basis of a voltage at the end of the solenoid valve coil opposite the end which the test power supply system is connected in accordance with the operating state.
摘要:
A brake fluid pressure control system includes an external source of fluid pressure, a wheel cylinder, and a fluid pressure control valve disposed between the external source of fluid pressure and the wheel cylinder. A controller is operable to control the fluid pressure control valve whereby fluid pressure under control is fed from the external source of fluid pressure to the wheel cylinder. When a change in pressure within the wheel cylinder occurs, a fail safe valve is operable to disconnect the wheel cylinder from the fluid pressure control valve and instead, connect the wheel cylinder to a master cylinder. Inspection of the fail safe valve is carried out by disconnecting the wheel cylinder from the control valve when no brake is applied, feeding fluid pressure from the external source of fluid pressure to the wheel cylinder, and detecting a change in pressure within the wheel cylinder. An alert device is provided to give a warning in the event of a system failure.
摘要:
The present invention relates to an improved antiskid control apparatus for vehicles. When the front wheel on either one of the right and left sides is antiskid-controlled, this apparatus detects whether the road surface is in the condition of split .mu. in which the road surface friction coefficient is different between the right and left wheels by more than the prescribed value. When the road surface is found to have a split .mu. condition, antiskid control should be implemented on the front wheel mentioned above. To control the rise in brake fluid pressure, the other front wheel must then be shifted in whatever direction facilitates control of the threshold value. In other words, even if a wheel does not attain a sufficient coefficient of surface friction, antiskid control is needed to control easily the rise in brake fluid pressure. A large side force is applied continuously to the vehicle, thereby reducing slippage and cancelling the yaw moment.
摘要:
The present invention relates to an anti-skid brake control apparatus for a brake system of wheeled vehicles. The control apparatus according to the present invention is essentially composed of a slip speed meter, a threshold value setting device and a brake oil pressure control device. The slip speed meter calculates at least one of a slip speed and a wheel acceleration. The acceleration is a time derivative of the rotational speed of a wheel. The threshold value setting device temporarily determines a threshold value for at least one of the slip speed and the wheel acceleration with reference to at least one of the slip speed and the wheel acceleration. The brake oil pressure control device controlling braking force of the brake system with reference to at least one of a comparison of the slip speed and the threshold value thereof, and a comparison of the wheel acceleration and the threshold value thereof, whereby skidding of the wheel is prevented by temporarily controlling the braking force.
摘要:
A vehicle braking system for use in a vehicle such as an automobile, and including at least one wheel brake, a brake pedal, and a brake applying device such as a master cylinder or a pneumatic booster which is connected to the brake pedal for applying hydraulic pressure on the wheel brake in response to actuation of the brake pedal. A selector valve is connected to the brake applying device and acts, when actuated, to maintain hydraulic pressure in the wheel brake irrespective to the release of the brake pedal. Further, there are provided at least one sensor such as a sensor sensing the running speed of the vehicle, a sensor sensing the actuation of a gas pedal, a sensor sensing whether a seat belt in the driver's seat is fitted on or not and the like, and a controller connected to the sensor for actuating the selector valve in response to a predetermined operational condition of the vehicle.
摘要:
The present invention provides an electric disk brake which enables an operation for wiring the harness to be easily conducted without the risk of lowering production efficiency. A caliper body-side connector 26 which, together with a harness-side connector 24 of a harness 23, forms a connector 25, is provided in a caliper body 3. In the caliper body-side connector 26, first to fourth lead-out terminals 30a to 30d connected to an electric portion for an electric motor are arranged in this order from a first side portion 20a towards a third side portion 20c of a cover 20. In the harness-side connector 24, a first set of first to fourth harness-side terminals and a second set of first to fourth harness-side terminals independently connected to the first to fourth lead-out terminals 30a to 30d are arranged in reverse order. When an electric disk brake 1 is used for each of the left rear wheel and the right rear wheel, one of the first set of first to fourth harness-side terminals and the second set of first to fourth harness-side terminals is used for the left rear wheel while the other is used for the right rear wheel, and the first to fourth lead-out terminals and the first to fourth harness-side terminals are connected. The harnesses 23 extend in the same direction relative to the vehicle, thus ensuring ease of operation for wiring the harnesses 23.