Abstract:
In a control device of a braking device, a brake force holding control that holds a brake force generated by a braking device main body to wheels of a vehicle to a predetermined value or more is executed based on a change amount per unit time of an operation amount of a brake operation member. Accordingly, since the brake force holding control that holds the brake force to the predetermined value or more is executed by the braking device main body based on at least a change amount per unit time of an operation amount of the brake operation member, holding of the brake force can be appropriately executed regardless of an operation state.
Abstract:
A vehicle state judging apparatus includes a wheel speed sensor provided on a vehicle detecting a wheel speed, a shift position sensor detecting a position of a shift lever, an acceleration sensor detecting acceleration acting on the vehicle, and a judging unit judging a vehicle state from detection values of the wheel speed sensor, the shift position sensor and the acceleration sensor. The judging unit judges that a travel direction of the vehicle is switched when the judging unit detects that the shift lever is switched from a position other than forward movement to a position of the forward movement or switched from a position other than backward movement to a position of the backward movement, detects that the wheel speed is not lower than a first reference speed, and further detects that the wheel speed becomes not higher than a second reference speed before the moment of detection.
Abstract:
A scroll type compressor including a housing, a fixed scroll which is joined to the housing and including a first end plate from which a first wrap extends and an orbiting scroll which includes a second end plate from which a second wrap extends. The wraps interfit at an angular and radial offset to make a plurality of line contacts to define at least one pair of sealed off fluid pockets. The first end plate is formed with a plurality of pairs of holes, the holes of each pair of holes being placed at symmetrical positions. The most inwardly placed hole is placed at a location defined by involute angles within the area defined by .phi.end-2(n-1).pi.>.phi.1>.phi.end-2n , where .phi.end is the final involute angle of the wrap which extends from the end plate having the holes, .phi.1 is the involute angle at which the hole is placed and n is the amount of pairs of holes. The most outwardly placed hole is placed at a location defined by involute angles within the area defined by .phi.n-1+2.pi.>.phi.n>.phi.end-2.pi.. The intermediate holes are located within an area defined by .phi.k-1+2.pi.>.phi.k>.phi.k+1-2.pi., where .phi.k is the involute angle at which hole kth from the most inwardly placed hole is located. A control mechanism controls the opening and closing of the holes to thereby control the capacity or displacement volume of the compressor.
Abstract:
A scroll type compressor is disclosed. The compressor includes a housing. A fixed scroll is joined to the housing and includes a first end plate from which a first wrap extends. An orbiting scroll also includes second end plate from which a second wrap extends. The wraps interfit at an angular and radial offset to make a plurality of line contacts to define at least one pair of sealed off fluid pockets. The first end plate is formed with at least two holes which are placed at the symmetrical positions. A first of the holes is placed at a location, defined by involute angles, within the area defined by .phi. end >.phi.1>.phi. end-2.pi., where .phi.0 end is the final involute angle of the wrap which extends from the end plate having the holes, and .phi. 1 is the involute angle at which the first hole is placed. The second hole is located at an involute angle approximately .phi.1-.pi.. A control mechanism controls the opening and closing of the holes to thereby control the capacity of compressor.
Abstract:
A rotary machine, such as a horizontally oriented scroll type refrigerant compressor is disclosed. The compressor includes a compressor housing, an inner block fixedly disposed within the compressor housing, a drive shaft extending substantially in the horizontal direction, and a driven mechanism, such as a compression mechanism operatively connected to one end of the drive shaft. The drive shaft is rotatably supported by the inner block and the compressor housing. A shielding element, such as an annular cylindrical member is fixedly held between the inner block and the compressor housing to prevent the drive shaft from passing through an oil sump of the housing. An internal lubrication oil pump is formed by the elements which are associated with the drive shaft, and is operated by virtue of the rotational motion of the drive shaft in order to supply the lubrication oil from the oil sump to the frictional surfaces of the internal component parts of the compressor. According to the construction and operational manner of the oil pump, the oil pump can be used for various types of horizontally oriented rotary machines. The drive shaft can also rotate without receiving oil viscous drag.
Abstract:
A method for assembling a motor driven fluid compressor having a compression mechanism, such as a scroll type fluid compression mechanism and a drive mechanism which are contained within a hermetically sealed housing is disclosed. The compression mechanism includes a fixed and orbiting scrolls. The drive mechanism includes a drive shaft and a motor rotating the drive shaft. The housing is divided into a first and second cup-shaped portions and a cylindrical portion. An opening end of the first cup-shaped portion is releasably and hermetically connected to one opening end of the cylindrical portion. An opening end of the second cup-shaped portion is releasably and hermetically connected to another opening end of the cylindrical portion. A first, second and third sub-assemblies are separately prepared, and then are assembled into the compressor. The first sub-assembly is formed by the first cup-shaped portion and at least one internal component part of the compressor. The second sub-assembly is formed by the first cup-shaped portion and at least one internal component part of the compressor. The third sub-assembly is formed by the cylindrical portion and the remainder of the internal component parts of the compressor. Accordingly, the compressor can be easily assembled under a flexible management.
Abstract:
A method for making insoluble detrimental heavy metals contained in a fly ash collected from an exhaust gas discharged from an incinerator. For the purpose of making insoluble the heavy metals, a chelating agent and water are added to the fly ash and these substances are kneaded to form a kneaded mass. The kneaded mass has a strong alkalinity under the effect of an alkaline substance added to the exhaust gas to remove hydrogen chloride and other detrimental components contained in the exhaust gas. The reactions between the heavy metals and the chelating agent in the kneaded mass are promoted by adjusting the amount of added water to limit a pH value of the kneaded mass to up to 12, thereby converting the heavy metals into water-insoluble chelate compounds through the reaction with the chelating agent.
Abstract:
An acceleration/deceleration detecting system includes an acceleration/deceleration detector configured to be disposed in a measurement object and detect acceleration/deceleration of the measurement object, an acceleration/deceleration device configured to accelerate or decelerate the measurement object, and a calculation device configured to determine that a detection value of the acceleration/deceleration detector is an offset error or a detection error of the acceleration/deceleration detector, when an actual acceleration/deceleration direction of the measurement object is different from an acceleration/deceleration direction shown by a detection value of the acceleration/deceleration detector in a state that the measurement object is accelerated or decelerated by the acceleration/deceleration device.
Abstract:
In a control device of a braking device, a brake force holding control that holds a brake force generated by a braking device main body to wheels of a vehicle to a predetermined value or more is executed based on a change amount per unit time of an operation amount of a brake operation member. Accordingly, since the brake force holding control that holds the brake force to the predetermined value or more is executed by the braking device main body based on at least a change amount per unit time of an operation amount of the brake operation member, holding of the brake force can be appropriately executed regardless of an operation state.
Abstract:
A braking apparatus includes a braking mechanism that increases operating force to a brake operating member by a brake servo, generates braking force exerted on wheels corresponding to the increased operating force, and is capable of holding the braking force when a vehicle stops, and a controller that executes braking force holding control to hold the braking force when an operation amount of the brake operating member corresponding to the operating force becomes larger than a control start judgment value, and sets the control start judgment value to be smaller than the control start judgment value in a normal state of the brake servo when the brake servo fails. The braking force can be appropriately held.