Abstract: In the sensor including a frame member provided with a central opening portion, a pair of beam members extending from adjacent corner portions of the frame member toward a center of the opening portion, and the beam members have vibrating-end portions, i.e., inner end portions, connected with each other through a weight portion. Each of the beam members is provided with a concave portion in cross section. A piezo-resistance device is formed on each of the beam members, respectively. The beam members are improved in mechanical strength without a corresponding increase in a thickness of each of the beam members, while the piezo-resistance devices formed on the beam members are improved in sensitivity to vibrations.

Abstract: An engine output control device executes control while also executing auto cruise control if traction control is executed during auto cruise running so that traction control and auto cruise control are established at the same time. If the traction control executed by a traction controller and the auto cruise runs, executed by an auto cruise controller, are established at the same time, then the auto cruise controller is released and, at the same time an accelerator signal (auto cruise accelerator signal), which is pseudo controlled by the speed during the running of the auto cruise, is calculated by a pseudo control accelerator signal calculation, and because traction control is executed for the auto cruise accelerator signal, the auto cruise control is restored. Consequently it is possible to execute auto cruise control continuously.

Abstract: An evaporator and heater core are provided within a cooling unit so that the flow rate of the heating medium flowing into the heater core can be adjusted with a 3-way valve. The target outlet temperature of the air discharged into the space being temperature controlled is calculated based upon the temperature of the air taken into the cooling unit and the temperature setting that is set at the temperature setting device. The openness of the 3-way valve is adjusted in such a manner that the temperature of the air outlet from the cooling unit is adjusted toward the target outlet temperature when the intake air temperature has entered a specific temperature setting range. Also, for each storage compartment, unit fans, an evaporator and a heater core are provided, housed within a unit case. The evaporators are connected in parallel to a common compressor to adjust the flow rates of the coolant with a solenoid valve.

Abstract: In an injection timer for a fuel injection system in which control of the timer shifts from feedback control to open loop control when the engine rotation rate is equal to or less than a specific rotation rate, a decision is made as to whether or not the operation is at startup time and, if it is, decision making for the engine rotation rate is canceled and feedback control is maintained even if the engine rotation rate is equal to or less than the specific rotation rate. Because of this, in a fuel injection system which is capable of maintaining the pump chamber pressure at a high level even at low engine rotation rates, the injection timing device can achieve both an improvement in accuracy of injection timing control and anti-pollution measures at startup.

Abstract: In a differential for vehicles, a pair of side gears are received in a housing and coaxial with the housing. The pair of side gears are spline-connected with end portions of a pair of coaxial output shafts. The pair of side gears are meshed with each other through paired element gears. Each side gear has a protrusion of a reduced diameter to be inserted in a receiving recess of the housing. A primary thrust washer and a coned disk spring are interposed between a shoulder of each side gear and the housing. A secondary thrust washer is interposed between the protrusion of the side gear and the housing. With a distal end face of the protrusion of the side gear contacting the housing through the secondary thrust washer, a distance between the shoulder of the side gear and the inner surface of the housing is larger than a total thickness of the primary thrust washer and the coned disk spring.

Abstract: In a fuel injector arranged such that fuel injection is controlled by an opening/closing operation of a solenoid valve, occurrence of bouncing motion of the valve rod after the deenergization of the solenoid valve to terminate the fuel injection is prevented by forming a stopper with a flat surface for making in-plane contact with the end surface of the valve rod and defining in the valve rod a pressure chamber having an opening at the end surface. The chamber is adapted to be filled with the fuel to suppress the bouncing motion of the valve rod at the valve opening operation.

Abstract: A rotor 10 is constructed of a rotating shaft 7 and a semicylindrical rotating core 9 mounted on the shaft 7. A stator is coaxially arranged, with the rotor 10 being surrounded by a pair of annular stator coils 11 and 13 arranged one above the other in an axial direction of the rotor 10. A yoke member of the coils 11 and 13 is provided with magnetic material plates 19, 21, 23 and 25. The plates 19 and 21 for the coil 11 have halves 19A and 21A with inner peripheral portions protruding radially inwardly to approach the rotor 10, while the remaining plates 23 and 25 for the coil 13 have halves 23A and 25A with their inner peripheral portions protruding radially inwardly to approach the rotor 10. The halves 23A and 25A are oppositely disposed from the halves 19A and 21 A so as to have the coils 11 and 13 be opposite to each other in phase of the inductance as the rotor 10 rotates.

Abstract: A compressor start-up controller includes a compressing section (37-39) for compressing a refrigerant; a motor (25) connected to the compressing section for rotating the compressing section; a drive circuit (10) connected to the motor for driving the motor; a rotation detecting device (1) connected to the drive circuit for detecting whether the motor is normally rotating; a control unit (8) connected to the drive circuit for operating the motor in a step mode at a very slow rotation at its start-up for effecting electricity conducting control to gradually increase or decrease commutating current at a very slow speed during the step mode operation at the motor start-up.

Abstract: In a stacked tube type heat exchanger comprising a plurality of flat tubes and fins alternately stacked in parallel to one another, the flat tube is made of aluminum alloy consisting of 0.04-0.10 wt % of Si, 0.1-0.4 wt % of Fe, 0.2-0.5 wt % of Cu, less than 0.55 wt % of Mn, the remaining portion of Al, and unavoidable impurities, the flat tube is formed by extrusion molding, and the fin is made of aluminum alloy having at least its core material containing more than 1 wt % of Zn, and both surfaces of the fin are clad in a brazing material. Another heat exchanger comprising the flat tube made of the same materials as mentioned above, and formed by extrusion molding but with both surfaces of the tube being coated with the brazing material, and the fin is made of aluminum alloy containing more than 1 wt % of Zn, without having its surfaces coated with the brazing material.

Abstract: A stepping motor control device for an automobile air-conditioning system has a key-off home-position setting unit of a stepping motor for driving an air-conditioning door in response to switching of a key switch of the automobile off. The key-off home-position setting unit, responsive to switch of the key switch off, drives the stepping motor so that the air-conditioning door comes to a full-close position or a full-open position, stores data indicative of the full-close or full-open positions, as a current position of the air-conditioning door in a memory, and thereby finishes a home-position setting of the stepping motor. The key-off home-position setting unit is supplied with power from a power source under control of a timer for a prescribed time within which a home-position setting can be finished.

Abstract: A method for identifying highway access ramps in a database medium for use as locations for route calculation. Initially, first road segments which belong to a highway and which are connected to at least one access ramp are identified. The first road segments are sorted according to the highway to which they belong. A highway direction is determined for each first road segment. The first road segments belonging to a first highway are sorted according to highway direction. The first road segments belonging to the first highway and of each highway direction are sorted according to position, thereby forming a highway segment list for each direction of the first highway. Highway access ramps are identified for each first road segment in the highway segment list. The locations for the highway access ramps are stored in the database medium. Highway access ramps are identified in this manner for each highway in the database medium.

Abstract: A storage medium for map information for a navigation system includes an IC memory chip or an IC memory card of a small memory capacity. This storage medium stores detailed map information of a limited region including part of a highway network and information of the highway network covering a predetermined area which includes the limited region and is wider than the limited region. A system for offering map information for a navigation system includes two storage media. One storage medium is the same as the above-mentioned storage medium and the other storage medium has a small memory capacity. The other storage medium stores detailed map information of a limited region different from the limited region whose information is stored in the one storage medium.

Abstract: In an innercam system fuel injection pump, plungers 15 are provided in the direction of the radius of a rotating member 10 which rotates in synchronization with the engine. A cam ring 18, which regulates the movement of the plungers, is fixed in a housing 2. A first sleeve 25 for regulating the timing with which a cutoff port 22 opens and a second sleeve 26 for regulating the timing with which an intake port 21 opens are externally fitted on the rotating member 10 in such a manner that they can slide freely. The first sleeve 25 and the second sleeve 26 interlock with each other in a specific relationship and a timer mechanism 40, which is directly linked to the second sleeve 26, controls the quantity of rotation of the second sleeve 26. With this, stable injection timing control can be achieved.

Abstract: A heat exchanger structured with a plurality of tube elements laminated alternately with fins over a plurality of levels and end plates at either end in the direction of lamination. A passage plate, in which a supply passage and a discharge passage for heat exchanging medium are formed, is provided on the side of one of the end plates, and an intake pipe and an outlet pipe for heat exchanging medium are connected to the supply passage, and the discharge passage respectively, of the passage plate. The supply passage and the discharge passage of the passage plate have sufficient length, to allow the intake pipe and the outlet pipe to be connected at arbitrary positions. It is possible to connect the intake pipe and the outlet pipe for heat exchanging medium at arbitrary positions for different types of vehicles. Also, a heat exchanger in which commonality of components is achieved.

Abstract: An automobile air-conditioning system has a compressor driven by an electric motor, a main condenser for cooling which is provided outside a car-room, a subcondenser for heating which is provided in the car-room, an evaporator provided in the car-room and a changeover valve for switching refrigerant paths, and executes a heating operation and a cooling operation by switching refrigerant paths by the changeover valve. When an air-conditioning mode is a heating mode and a room temperature of the automobile is below a prescribed temperature, a revolution of the compressor is compensated by a first prescribed revolution pitch according to a discharge temperature of a refrigerant delivered from the compressor.

Abstract: The invention provides a route state filter for a vehicle route guidance system for improved tracking of vehicle position with respect to a preselected route. A set of position possibilities are derived by comparing a measured vehicle position to a database containing data representing a map of roads, the possibilities corresponding to possible positions on the roads within an error region around the measured position. A route guidance module receives the position possibilities, checks their validity and applies a filter to remove less likely possibilities. A current position is then selected from the remaining possibilities. An ON/OFF ROUTE status of the vehicle is determined by comparing the selected position with the selected route information in the database. A distance-based filter is utilized to provide improved continuity in the route status determination.

Abstract: An oscillating-plate type compressor has five cylinder bores 6 formed in a cylinder block 1. Coolant gas compressed in the cylinder bores is discharged to a discharge chamber 12 through discharge valves 17 secured to the cylinder block 1 by means of a bolt 19. The discharge chamber 12 is separated by a baffle plate 14 into two discharge spaces 12a and 12b, the former containing a bolt head 19a and the latter communicating with the discharge port. Five holes 14a to 14e which are the same in number as that of the cylinder bores 6 are formed and arranged along an imaginary circle of a predetermined diameter around the bolt facing portion 28 of the baffle plate 14 so as to communicate both of the discharge spaces 12a and 12b with each other.

Abstract: An annular piston abuts on an end face of a rotation plate on a side remote from a hollow cylinder via a thrust bearing, and delivery pressure is introduced to an end face of an annular piston on a side remote from the rotation plate via a high pressure-introducing passage. The delivery pressure acts via the thrust bearing on the rotation plate to urge the rotation plate toward the cylinder. As a result, the gap between the rotation plate and the cylinder is reduced, while a friction resistance offered to the rotation plate is reduced, thereby permitting the smooth rotation of the rotation plate.

Abstract: A scroll compressor reduces the load applied to the thrust bearing, to prevent a thrust bearing from seizing and to improve the service life of the thrust bearing. It comprises an electric motor that is provided within a high pressure space inside a sealed case with a stator fixed within the sealed case and a rotor fixed to a drive shaft. An oscillating shaft is decentered on and extends from the drive shaft. An oscillating scroll member has an insertion hole into which the oscillating shaft is inserted. A fixed scroll member forms a compression space by fitting into the oscillating scroll member, and a block secures the fixed scroll member inside the sealed case and clamps the oscillating scroll member so that it can oscillate freely between the block and the fixed scroll member. The thrust bearing is provided between the drive shaft and the block to hold the lower end of the drive shaft so that it can rotate freely.

Abstract: A method of cutting a flat tube (6) into unit pieces, which includes moving in a transverse direction rotatable disc cutters (12) with knife edges so as to cut the upper and lower walls of a flat tube to form a pair of cutting grooves (15) and fixing the flat tube at a point upstream of the cutting groove while flexing in the vertical direction a length of the flat tube downstream of the cutting grooves to break it off at the cutting grooves, thereby providing a unit piece of a predetermined length.