摘要:
A hydraulic pressure control apparatus comprising: an introducing valve provided on a supply duct connecting to each other a hydraulic source and a control chamber for controlling a fluid-operated equipment or increasing or decreasing the hydraulic pressure of the fluid-operated equipment; and a discharge valve provided on a discharge duct discharging hydraulic fluid from the fluid-operated equipment or the control chamber. The introducing valve and/or the discharge valve are disposed in series on the supply duct or the discharge duct; at least one of a plurality of the introducing valves and/or the discharge valves consists of a flow rate-variable valve capable of changing the flow rate of the hydraulic fluid continuously according to the intensity of electric current; and the other introducing valves and/or discharge valves consist of electromagnetic change-over valves fully opened or fully closed.
摘要:
A multifunction electronic analog timepiece includes a face and a plurality of indicators positioned on the face for displaying at least two time keeping functions. At least two step motors are provided for driving the plurality of time keeping function indicators. The time keeping function indicators are arbitrarily disposed about the face dependent upon the number of step motors and position of step motors required to drive the indicators. A microcomputer is provided and includes a program memory for storing software instructions for controlling the step motors.
摘要:
An antiskid control device including a vehicle speed estimating device for estimating a vehicle speed from a plurality of wheel speeds of the driven and undriven wheels of a motor vehicle. The vehicle speed estimating device includes a first comparator for comparing the speeds of the wheels, a storage for temporarily storing the estimated vehicle speed or an ultimately selected wheel speed, a second comparator for comparing the speed stored in the storage with the speeds of the driven wheels and a storage updating device for causing, at the time when antiskid control has been started, the storage of the estimated vehicle speed obtained at the time or the ultimately selected wheel speed obtained at the time. During nonexecution of antiskid control, a highest speed among the speeds of the undriven wheels is selected to calculate the speed of the vehice body, while during execution of antiskid control, another highest speed among the speeds of the undriven wheels and the speeds of the driven wheels lower than the speed stored in the storage is selected to calculate the speed of the vehicle body.
摘要:
An antiskid brake control device including a hydraulic controller, a timer for measuring time periods for reducing, increasing and holding a hydraulic pressure, a counter for counting the number of changeover between increase and holding of the hydraulic pressure, a calculating device for calculating a vehicle speed, a decision device for discriminating an average vehicle deceleration into finite steps, a discrimination device for discriminating into finite steps, the time period for reducing the hydraulic pressure, a storage for storing the time periods for increasing and holding the hydraulic pressure and a changeover device for performing, when the wheels have recovered from locking, changeover between increase and holding of the hydraulic pressure in accordance with the time periods for increasing and holding the hydraulic pressure.
摘要:
A smooth stop control system for effecting the smooth stop of an object effected by a brake arrangement includes a detector for detecting an actual speed of the object, a calculator for calculating an actual deceleration of the object and also for calculating a degree of deceleration which changes continuously until the complete stop of said object. It further includes a control which compares the actual deceleration with the calculated deceleration, and controls the brake arrangement in accordance with the result of the comparison so as to render the actual deceleration substantially equal to the calculated deceleration.
摘要:
An improved brake pressure control device is disclosed which has an inertia valve, a sealing chamber, a piston and a pressure proportioning valve. Between the piston and the valve plunger are arranged two springs carried by a U-shaped plate so that the piston will not act on the valve plunger until the pressure in the sealing chamber reaches a predetermined level.
摘要:
In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.
摘要:
In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.
摘要:
A carbon monoxide transforming apparatus for fuel cell is constructed such that a catalyst having at least platinum or palladium carried on a carrier which has a base point on the surface thereof is filled in a reaction vessel having gas inlet and outlet ports. As a result, a transformation and start-up operation can be instantaneously performed on the occasion of transforming a gas containing, as main components, hydrogen, carbon monoxide, carbon dioxide and water vapor so as to convert the carbon monoxide into carbon dioxide and at the same time to generate hydrogen. Additionally, the operating temperature for the transformation can be expanded.
摘要:
A coordinated regenerative brake system controls total brake torque to brake a vehicle in accordance with brake pedal operation and achieve deceleration intended by the driver's operation of the brakes when the accelerator is not depressed. In a vehicle speed range below specific speed V1, engine brake equivalent torque Ta is set to decrease gradually to zero in accordance with vehicle speed V. When brake operation starts at a vehicle speed exceeding V1, the desired total brake torque Tq working on the vehicle is the sum of brake torque Tb corresponding to brake operation, and engine brake equivalent torque Ta, until vehicle speed reaches specific speed V1. When vehicle speed is V1 or less, brake torque is controlled using as desired total brake torque Tq the sum of brake torque Tb corresponding to brake operation, and first engine brake equivalent torque Ta1, if brake operation amount Sb is greater than or equal to a first brake operation amount Sb1.