摘要:
A data transmitter-receiver 30 arranged on a ring network to form a node includes a normal-direction data transmit/receive unit 19, a reverse-direction data transmit/receive unit 20, a buffer control unit 13, a controller 14, and connectors 11, 12. The normal-direction data transmit/receive unit 19 includes a received signal demodulator 7, an input buffer 3, an output buffer 1, an intermediate buffer 2, a sending signal modulator 8, and data buses 15, 16. The reverse-direction data transmit/receive unit 20 has the same construction as the normal-direction data transmit/receive unit 19. Two-way data transmission and verification of transmitted data in each node serves to locate a failure, and the buffer control unit 13 selectively activates or deactivates the buffers to compensate the failure. Thus, adequate detection, accurate location, proper compensation of a failure can be achieved in a relatively low-cost network system so that the communication functionality of the whole system can be maintained.
摘要:
A resonance type electric power conversion apparatus which includes a main circuit including a main reactor (L1), a main switching device (S1), an inverse-parallel diode and an output power diode, and an auxiliary circuit including an auxiliary reactor, an auxiliary switch, and an auxiliary capacitor connected in parallel to the main switching device (S1) for forming a recovery current elimination circuit and a partial resonance circuit for discharging charge accumulated in the auxiliary capacitor to turn on the inverse-parallel diode, includes recovery current elimination period calculation means for calculating a recovery current elimination period after the present point of time until the current flowing through the output power diode becomes zero and the charge of the output power diode disappears based on a voltage value across the auxiliary reactor, a current value of the main reactor (L1)and an inductance value of the auxiliary reactor, and control means for controlling the auxiliary switching device to turn on based on the recovery current elimination period.
摘要:
A pedestrian bumper system and method can include an attachment bumper and an attachment bracket for connecting the attachment bumper to the existing vehicle bumper or existing vehicle frame. The attachment bumper can be configured to conform to the existing vehicle bumper such that the frontal crash mode of the vehicle is substantially unchanged. In addition, the attachment bumper can create a new front surface area that includes an area that is lower than the front area of the existing vehicle bumper. Thus, the bumper system can be configured to contact a pedestrian at a lower location to minimize injury during an accident. The bumper system can also be configured to be easily adapted to existing vehicles by either the consumer or the vehicle manufacturer to take advantage of easily modifying vehicles for different market and/or consumer requirements and tastes.
摘要:
SolvingMeans: A low deck vehicle (10) is a scooter-type motorcycle in which an intake chamber (331) for an engine (100) is mounted. The intake chamber for the engine is arranged on the side of a front wheel(52). The intake chamber for the engine is composed of a pair of right and left first intake chambers(332)arranged on both right and left sides of the front wheel. A second intake chamber(335)on the downstream side connected to the first intake chambers is arranged above the right and left first intake chambers and a fuel tank (57) is arranged over the second intake chamber. The right and left first intake chambers also function as a part of footrests for a rider to put his/her feet.
摘要:
The antifreeze of the present invention includes propylene glycol, first material, and second material. The first material is normal aliphatic dicarboxylic acid in which number of carbon atom is from 10 to 12, salt of the normal aliphatic dicarboxylic acid, or mixture thereof. The second material is benzimidazole compound which has a benzimidazole skeleton, salt of benzimidazole compound, triazine compound which has a triazine skeleton and a mercapto group, salt of triazine compound, or mixture thereof. Such antifreeze has less environment load than antifreeze including ethylene glycol. Furthermore, such antifreeze does not cause metal to corrode more than the antifreeze including ethylene glycol.
摘要:
There is provided a resin tube-equipped quick connector capable of connecting a fuel-transporting resin tube to a mating pipe without hindrance even if the resin tube has a small diameter. The quick connector 16 is constructed such that it includes a connector body 18 having a press-fitting portion 28, and a retainer 20. On the other hand, a press-fit undergoing portion 10A of the resin tube 10 into which the press-fitting portion 28 is to be press-fitted is beforehand expanded in tube diameter prior to the press-fitting, and the press-fitting portion 28 is press-fitted into the expanded press-fit undergoing portion 10A in a withdrawal-preventing condition to provide the quick connector 16 equipped with the resin tube 10.
摘要:
An oxygen sensor is disposed behind an exhaust gas purifying catalyst for an internal combustion engine and which suppresses the influence of unburnt hydrocarbon on the output voltage. A sensor element 1 is provided with a detection electrode 4 on the outer face of a zirconia ceramic body 2, a reference electrode 3 on the inner face of the ceramic body 2 and a spinel protective layer 5 on the outer surface of the detection electrode 4. The tip end of the sensor element 1 is covered with a protective cover 10 which is provided with an outer partition wall 11 having through holes 11a and an inner partition wall 12 having through holes 12a. In a case where the pressure difference between the inside and outside of the protective cover 10 is ΔP(atm) when the atmospheric air with a volume flow rate Q(l/min) is passed into the protective cover 10 from the outside, the ratio ΔP/Q 2 is 3.2×10 -5 (atm·min 2 ·1 -2 ). When the surface temperature of the sensor element 1 is changed in a range of sensor active temperature, the reversing time is substantially constant. Therefore, the catalyst deterioration can be detected by the oxygen sensor with high accuracy.
摘要:
There is disclosed an oxygen sensor disposed before an exhaust gas purifying catalyst of an engine which uses a hydrocarbon containing fuel with a H/C ratio of three or more. An oxygen sensor 1 is provided with a solid electrolytic body 2 which can generate a difference in oxygen concentration with reference gas and measured gas, a reference electrode 3 and a detection electrode 4 formed on inner and outer surfaces of the solid electrolytic body 2, and a porous protective layer 5 for covering the detection electrode 4. The detection electrode 4 is formed only of a metal like Pt which promotes oxidizing reaction of methane to have a thickness of 1 to 2 µm. In the protective layer 5, only a second protective layer 5b carries Pt catalyst 6 which promotes oxidizing reaction of hydrogen, and the amount of carried catalyst is in the range of 0.5 to 7 mol% relative to the whole of the second protective layer 5b. According to the oxygen sensor 1, even if a large amount of hydrogen is exhausted, for example, from CNG engine, or even if a large amount of methane is exhausted, an excellent engine control can be realized.