Abstract: A valve timing control apparatus for an internal combustion engine, including a drive rotation member, a follower rotation member, an electric motor serving to change a relative rotational phase of the drive rotation member and the follower rotation member, a torsion spring accommodated in an annular accommodation space having an axial closed end which is formed between an inner periphery of the drive rotation member and an outer periphery of the follower rotation member, and a stop plate fixed to the drive rotation member so as to cover a part of an axial open end of the annular accommodation space, the stop plate cooperating with the follower rotation member or a camshaft to restrict relative rotation of the drive rotation member and the follower rotation member within a predetermined angular range.

Abstract: A valve-timing control apparatus includes a phase change mechanism configured to change a valve timing, a cover member provided near a front end side of the phase change mechanism; slip rings provided to one of a front end portion of the phase change mechanism and a facing surface of the cover member which faces the phase change mechanism; a pair of brushes provided to another of the front end portion of the phase change mechanism and the facing surface of the cover member to be axially slidable. One end portion the pigtail harness is connected with the corresponding brush. Another end portion of the pigtail harness is connected with a connector terminal under a deflected state, at a location radially shifted from an axis of the corresponding brush. The another end portions of the pair of pigtail harnesses are separated from each other by a partition wall.

Abstract: A valve-timing control apparatus includes a drive rotating member; a driven rotating member fixed to a cam shaft; an electric motor configured to rotate the driven rotating member relative to the drive rotating member; a motor housing connected integrally with the drive rotating member; a cover member located to face a front portion of the housing; a tubular motor output shaft provided inside the housing to be rotatable relative to the housing; and a plug member fixed to an inner circumferential surface of a tip portion of the tubular motor output shaft and configured to inhibit lubricating oil supplied into the tubular motor output shaft from leaking to an external. The plug member includes a core member formed in a bottomed tubular shape and formed with a through-hole in its bottom portion, and an elastic body coating at least the through-hole and an outer circumferential surface of the core member.

Abstract: A variable valve timing control apparatus has a drive rotary member, a driven rotary member fixed to a camshaft, an electric motor relatively rotating a motor drive shaft with respect to the drive rotary member, a speed reduction mechanism transmitting rotation of the motor drive shaft to the driven rotary member a housing connected integrally with the drive rotary member and housing therein the electric motor, a cover member fixed to an engine so as to cover at least a front end part of the housing, a power feed mechanism having a slip ring and a power-feed brush that touches the slip ring and feeding power to the electric motor, and a ring-shaped member. The ring-shaped member is fixed to either one side of the cover member and the motor drive shaft, and makes sliding contact with the other side of the cover member and the motor drive shaft.

Abstract: In an electrically-driven valve timing control apparatus employing a housing and a cover member axially opposed to each other, a cylindrical-hollow motor output shaft is installed in the housing, and configured to rotate relative to the housing by electricity-feeding to the electric motor, and also configured such that lubricating oil is supplied into the motor output shaft. A plug is fitted to the inner periphery of an axial opening end of the motor output shaft for suppressing a leakage of lubricating oil from the motor output shaft to the outside. One of two opposing faces of the cover member and the plug is formed with a protruding portion configured to prevent the plug's slipping out of the axial opening end. A part of the inside face of the cover member, opposed to the plug, is formed integral with the protruding portion partially disposed within the axial opening end.

Abstract: In a valve timing control apparatus for an internal combustion engine, a plurality of projection sections projected toward a cover member are integrally mounted on a bearing member configured to rotatably journalize a camshaft and a plurality of positioning pins are mounted across (or extended over) the cover member and the respective projection sections.

Abstract: In a variable valve actuation apparatus with a speed reducer between a timing sprocket and a camshaft for changing a phase of the camshaft relative to the sprocket, while reducing normal-rotation/reverse-rotation of an electric motor, the speed reducer includes an eccentric rotation member connected to an output shaft of the motor, an annular member connected to the sprocket, a plurality of rollers installed between an inner toothed portion of the annular member and an outer peripheral surface of the eccentric rotation member, and a cage connected to the camshaft for circumferentially partitioning the respective rollers, while permitting a radial displacement of each roller. Depending on a dimension of a clearance space between the eccentric rotation member and the annular member, a suitable one of a plurality of roller sets, each having a different outside diameter, is selected, and then the selected rollers are installed.

Abstract: In a variable valve actuation apparatus with a speed reducer between a timing sprocket and a camshaft for changing a phase of the camshaft relative to the sprocket, while reducing normal-rotation/reverse-rotation of an electric motor, the speed reducer includes an eccentric rotation member connected to an output shaft of the motor, an annular member connected to the sprocket, a plurality of rollers installed between an inner toothed portion of the annular member and an outer peripheral surface of the eccentric rotation member, and a cage connected to the camshaft for circumferentially partitioning the respective rollers, while permitting a radial displacement of each roller. Depending on a dimension of a clearance space between the eccentric rotation member and the annular member, a suitable one of a plurality of roller sets, each having a different outside diameter, is selected, and then the selected rollers are installed.

Abstract: A valve timing control apparatus for an internal combustion engine, including a drive rotation member, a follower rotation member, an electric motor, and a speed reducer including an internal gear portion, an eccentric cam on an inner peripheral side of the internal gear portion, rollers disposed between the internal gear portion and the eccentric cam, and a cage rotatable relative to the internal gear portion by rotation of the eccentric cam. A motor output shaft is arranged in series relative to the eccentric cam in an axial direction thereof. A needle bearing is rollably disposed on a part of an outer peripheral surface of the follower rotation member. The eccentric cam and the motor output shaft are press-fitted onto an outer peripheral portion of the needle bearing. The needle bearing extends over both the eccentric cam and the motor output shaft.

Abstract: A hydraulic control device includes a valve body having oil passages, a solenoid valve incorporated in the valve body, an oil pan that is disposed below the valve body and that accumulates hydraulic oil, and a strainer which, as well as being disposed between the valve body and the oil pan, has a filtering medium which filters the hydraulic oil suctioned from the oil pan. The strainer is fixed to the oil pan by a magnetic force of at least one magnet.

Abstract: A drive rotation member is driven by a crankshaft of the engine, and a driven rotation member is rotatable relative to the drive rotation member and secured to a cam shaft of the engine. An electric motor is arranged to rotate together with the drive rotation member and produces a dynamic power when fed with an electric current through brushes. A hollow control shaft is rotatable relative to the drive rotation member and forces the driven rotation member to rotate relative to the drive rotation member when rotated by the power of the electric motor. A bearing device is arranged between the driven rotation member and the hollow control shaft for smoothing a relative rotation therebetween. The bearing device includes a plurality of rollers. A lubrication oil feeding structure is provided for causing the rollers of the bearing device to be submerged in a lubrication oil at least when the engine is in operation.

Abstract: Provided is a microcomputer simulator capable of quickly dealing with change of a target microcomputer to thereby enable a speedy development of software. The microcomputer simulator is a microcomputer simulator for simulating a microcomputer including therein a CPU and a peripheral circuit of the CPU, and includes a mother board including a CPU for executing application software to be processed by the CPU provided in the microcomputer, and an IO board for executing, at an FPGA thereof, processing of the peripheral circuit provided in the microcomputer and IO processing executed by the CPU provided in the microcomputer. The FPGA includes a common memory portion so that the microcomputer simulator updates data stored in the common memory portion through a communication bus provided between the mother board 10 and the IO board, and causes data to be exchanged between the CPU provided in the mother board and the FPGA.

Abstract: A variable valve timing control apparatus has a drive rotary member, a driven rotary member fixed to a camshaft, an electric motor relatively rotating a motor drive shaft with respect to the drive rotary member, a speed reduction mechanism transmitting rotation of the motor drive shaft to the driven rotary member a housing connected integrally with the drive rotary member and housing therein the electric motor, a cover member fixed to an engine so as to cover at least a front end part of the housing, a power feed mechanism having a slip ring and a power-feed brush that touches the slip ring and feeding power to the electric motor, and a ring-shaped member. The ring-shaped member is fixed to either one side of the cover member and the motor drive shaft, and makes sliding contact with the other side of the cover member and the motor drive shaft.

Abstract: A CAN driver receives vehicle information sent onto CAN. A diagnosis information acquiring module monitors whether an operation of a diagnosis record ECU itself is normal or not and thus generates diagnosis information. A timestamp information generating module generates timestamp information A per sec and generates timestamp information B in which a time difference from the generation timing of the timestamp information A is expressed on the unit of 1/100 sec. A diagnosis record module, each time the timestamp information generating module generates the timestamp information A, transfers a first type record containing the timestamp information A and the diagnosis information generated at this point of time to a memory manager, and transfers a second type record containing the vehicle information and the timestamp information B generated at this point of time to the memory manager.

Abstract: In a variable valve actuation apparatus with a speed reducer between a timing sprocket and a camshaft for changing a phase of the camshaft relative to the sprocket, while reducing normal-rotation/reverse-rotation of an electric motor, the speed reducer includes an eccentric rotation member connected to an output shaft of the motor, an annular member connected to the sprocket, a plurality of rollers installed between an inner toothed portion of the annular member and an outer peripheral surface of the eccentric rotation member, and a cage connected to the camshaft for circumferentially partitioning the respective rollers, while permitting a radial displacement of each roller. Depending on a dimension of a clearance space between the eccentric rotation member and the annular member, a suitable one of a plurality of roller sets, each having a different outside diameter, is selected, and then the selected rollers are installed.

Abstract: A hydraulic control device includes a valve body having oil passages, a solenoid valve incorporated in the valve body, an oil pan that is disposed below the valve body and that accumulates hydraulic oil, and a strainer which, as well as being disposed between the valve body and the oil pan, has a filtering medium which filters the hydraulic oil suctioned from the oil pan. The strainer is fixed to the oil pan by a magnetic force of at least one magnet.

Abstract: A drive rotation member is driven by a crankshaft of the engine, and a driven rotation member is rotatable relative to the drive rotation member and secured to a cam shaft of the engine. An electric motor is arranged to rotate together with the drive rotation member and produces a dynamic power when fed with an electric current through brushes. A hollow control shaft is rotatable relative to the drive rotation member and forces the driven rotation member to rotate relative to the drive rotation member when rotated by the power of the electric motor. A bearing device is arranged between the driven rotation member and the hollow control shaft for smoothing a relative rotation therebetween. The bearing device includes a plurality of rollers. A lubrication oil feeding structure is provided for causing the rollers of the bearing device to be submerged in a lubrication oil at least when the engine is in operation.

Abstract: A light source and an illumination device are provided for making it possible to adjust influence of light over a living body while keeping good brightness and color taste of illumination light. A conversion characteristic in the degree of effect indicative of a relationship in a light wavelength between a living body reaction characteristic and an isochromatic characteristic of the visual perception is derived out and the light emitting intensity of a plurality of light emitters with different wavelength characteristics is controlled in accordance with the conversion characteristic, so as to adjust influence of light over a living body while keeping brightness and color taste of illumination light.

Abstract: A light source and a light irradiating device are provided to efficiently regulate a biological rhythm of a user without changing a color temperature of illumination light, an average color-matching index (Ra) or both.

Abstract: Provided is a microcomputer simulator capable of quickly dealing with change of a target microcomputer to thereby enable a speedy development of software. The microcomputer simulator is a microcomputer simulator for simulating a microcomputer including therein a CPU and a peripheral circuit of the CPU, and includes a mother board including a CPU for executing application software to be processed by the CPU provided in the microcomputer, and an IO board for executing, at an FPGA thereof, processing of the peripheral circuit provided in the microcomputer and IO processing executed by the CPU provided in the microcomputer. The FPGA includes a common memory portion so that the microcomputer simulator updates data stored in the common memory portion through a communication bus provided between the mother board 10 and the IO board, and causes data to be exchanged between the CPU provided in the mother board and the FPGA.