摘要:
Detection of abnormalities of an idle speed control system is performed based on whether a deviation of an on-idle engine speed from a target engine speed is within a critical range which is changed so as to make the idle speed control system harder to be judged abnormal when the engine is in a lapped state where the engine is apt to change speed than when in a green state where the engine is hardly changeable in speed.
摘要:
A valve operation verifying system for making verification of valve operation of an EGR valve of a type having a diaphragm elastically deformable according to operating conditions of an engine to admit controlled amounts of exhaust gas that is recirculated into an intake air stream which verifies, on a basis of gas pressure in an EGR passage, whether the diaphragm remains elastically deformable as specified and whether a pressure sensor remains free from freezing, and executes the verification of valve operation of the EGR valve on a basis of a change in the gas pressure in the EGR passage when the EGR valve opens and when it closes, and when the temperature of ambient air is lower than a critical point, verifying that the diaphragm remains elastically deformable as specified and that said pressure sensor is free from freezing.
摘要:
A leakage diagnostic system for making a judgement of leakage of a fuel purge system, which has in order from the side of a fuel tank a control valve, a canister and a purge valve disposed in a purge passage and a relief valve isolating the canister from the atmosphere, based on a rising rate of pressure in the purge passage between the fuel tank and the intake system isolated from the atmosphere after lowering and keeping the interior of the purge passage below specified negative pressure level for a specified period of time. When the interior of the fuel tank increases above a threshold level after a specified period of time, the leakage diagnostic system delivers a judgement of leakage of the purge system.
摘要:
An electrical machine includes a back-yoke engagement portion including a convex portion for a back yoke portion formed on an outer-diameter surface of a pair of back yoke-side coil retaining pieces and a shoe engagement portion including a convex portion for a shoe portion. By the convex portion for the back yoke portion and the convex portion for the shoe portion, the back yoke-side coil retaining pieces and shoe-side coil retaining pieces are biased toward a stator core.
摘要:
A contact has a spring section, and a pair of contact points. The spring section is formed as a single closed loop of material, prepared from Ni alloy. The loop may be subjected to elastic deformation through force. The pair of contact points formed in such way that the contact points project outwardly at positions separated from one another, the contact points positioned by about half way around the loop of the spring section. The pair of contact points capable of meeting with and coming into with terminals.
摘要:
Contacts are formed by a metal injection molding method using metallic fine particle powder as the material therefor. The contacts have a substantially rectangular base portion and an elastic arm that extends upward from one end of an upper surface of the base portion, supported in a cantilever fashion. The portion where the arm is attached to the base or a fixed end portion, has a comparatively large rectangular cross section. The cross sectional area gradually decreases toward the distal end of the arm. An electrical contact tip is formed at the distal end of the arm.
摘要:
A connector including a housing having a first surface and a plurality of first bores extending from the first surface for respectively receiving coaxial pins. The connector further includes a flat member made of an electrically conductive material and disposed in the housing so as to face the first bores, and first arms are formed from portions of the flat member which are associated one-to-one with the first bores for electrical connection to respective outer conductors of the coaxial pins. The connector further includes a plurality of second bores extending toward the flat member from a second surface of the housing which is opposite to the first surface for respectively receiving ground pins, and second arms formed from portions of the flat member which are associated one-to-one with the second bores for electrical connection to respective ground pins.
摘要:
In an intake system having a bypass passage for introducing auxiliary air to the engine, a base amount of auxiliary air is first determined according to the engine operating condition. A target idling speed is calculated according to the engine temperature and the engine load and the target idling speed is compared with the actual engine speed. The base amount of auxiliary air is corrected according to the difference between the target idling speed and the actual engine speed, thereby obtaining a final target amount of auxiliary air. The control amount of the control valve is determined according to the final target amount of auxiliary air referring the final target amount of auxiliary air to the output characteristics of the control valve. Then the control valve is driven on the basis of the control amount.
摘要:
This invention has for an object thereof the provision of a method for the production of a porous cross-linked polymer which can freely control the upper and lower surface behavior of the porous cross-linked polymer, the width and the thickness of the polymer and can perform continuously a process ranting from a step of supplying the emulsion through a step of polymerizing it. The object of this invention, in the production of a porous cross-linked polymer by polymerizing a water-in-oil type high internal phase emulsion, is accomplished by a method for the production of a porous cross-linked polymer characterized by performing continuously a process ranting from a step of supplying the emulsion through a step of polymerizing it while having the outer surface part of the emulsion retain an atmosphere or a state having a lower oxygen content than the ambient air.
摘要:
A system for diagnosing evaporation control system failures repeatedly introduces pressure, positive or negative, into the evaporation control system and closes up it hermetically, a plurality of times (for example two times), and detects changes in internal pressure in the evaporation control system. An average value of the internal pressure changes is compared to a threshold value so as to judge whether there is leakage of fuel vapors of the evaporation control system. When a difference between the internal pressure change is greater than a specified value, the evaporation control system failure diagnosis is interrupted.