摘要:
By preventing engagement of an engaging part (clutch) under appropriate conditions, it is possible to effectively avoid the so-called surging phenomenon. When there is an engaging directive for the clutch, the rotational speed of the engaging element positioned at the output shaft side of the drive/regeneration motor (the clutch output rotational speed) is detected, and the gear ratio of the CVT is detected, and when the product of the rotational speed of the engaging element and the gear ratio of the CVT is equal to or below a predetermined value, complete engagement between the engaging elements is prevented, and control is conducted which makes the gear ratio large.
摘要:
A control apparatus for a hybrid car is provided, capable of reliably protecting an electric double layer capacitor from being subjected to an excess voltage. A hybrid car comprises an engine E, a clutch 10, driving wheels W, a motor 19, an electric double layer capacitor 21 for supplying electric power to the motor and for storing the electric power generated by the motor, a switching device 23 for connecting or disconnecting the electric double layer capacitor and the motor, and a voltage detecting device 22 for detecting the terminal voltage of the electric double layer capacitor, and a control device 20 for controlling the switching device in response to the terminal voltage detected by said voltage detecting device, wherein when the terminal voltage of the electric double layer capacitor exceeds a standard value, while the motor is actuated as a brake, the control device is constituted such that the connection between the electric double layer capacitor and the motor is disconnected and the clutch is connected.
摘要:
A fuel injection method wherein optimum fuel injection timing in a fuel-injection type gas fuel engine is determined by setting fuel injection end timing to be after the start of opening of an intake valve. That is, when injection ends in a first half of the intake valve open period the volumetric efficiency .eta.v falls and the engine output also falls, because the injection period overlaps with a period of positive pressure arising inside the intake pipe before opening of the intake valve, but when injection ends in a second half of the intake valve open period the volumetric efficiency .eta.v rises and the engine efficiency also rises, because the injection period overlaps with a period of negative pressure arising in the intake pipe during the first half of the intake value open period. Consequently, when fuel is injected during this trough in the intake port pressure, the volumetric efficiency increases and the engine output also increases by several percent.
摘要:
Supply of fuel is stopped when fuel pressure sensed by a pressure sensor provided upstream of a regulator is at a predetermined value or less to avoid abnormal combustion caused by improper adjustment of air/fuel ratio. Even slight variation of the fuel pressure is sensed by monitoring the fuel pressure in an interval after closing a fuel shut-off valve once opened to re-opening of it. In addition, an abnormal state in the fuel system is detected by comparing an accumulated value of amount of injected fuel and an estimated value of fuel consumption in the tank. Furthermore, the peak current value of the fuel injection valve is controlled so that, when the engine at a low temperature is started, lift load of the injection valve is larger than sticking force of the injection valve, thereby preventing such situation where the injection valve is frozen so that it cannot supply fuel to the engine. In this case, the engine can be smoothly started by simultaneously controlling the valve open time. Furthermore, the temperature of the regulator is properly maintained so that optimum function can be exhibited by controlling the flow rate of cooling water flowing through a water passage provided in the regulator for regulating the fuel gas pressure.
摘要:
A fuel supply mechanism for a gas combustion engine has a tank filled with a gas fuel, a fuel injector having a fuel injection valve mounted on the gas combustion engine, a pipe for supplying the gas fuel from the tank to the fuel injector, a gas fuel cutoff valve in the pipe for cutting off the gas fuel flowing through the pipe, a gas fuel state detector for detecting a state of the gas fuel, and a control unit responsive to a detected signal from the gas fuel state detector for controlling the gas fuel cutoff valve and the fuel injection valve.
摘要:
There is provided a power detection circuit capable of appropriately adjusting detection voltage characteristics by using simple configuration. The power detection circuit includes a first resistor having current applied thereto to adjust a detection voltage value of input power, an element having an applied voltage and a load characteristic changed according to the input power, and a second resistor connected to the element and having current applied thereto when resistance of the element becomes relatively low, to adjust the detection voltage value of the input power. Detection voltage characteristics may be appropriately adjusted using a simple configuration.
摘要:
A construction machine includes: a lower propelling body; and an upper slewing body which is slewably mounted on the lower propelling body. The upper slewing body includes: an engine room provided with an intake opening and a discharge opening; a duct provided in the engine room so as to communicate with the discharge opening and an exhaust gas pipe which guides exhaust gas discharged from the engine into the duct. The discharge opening and an outlet of the duct are open downward from the engine room. A portion on a distal end side of the exhaust gas pipe is inserted into the duct. The duct and the exhaust gas pipe are configured to cause the exhaust gas to be mixed with cooled air in the duct and cause the mixture of the exhaust gas and the cooled air to be discharged downward from the discharge opening.
摘要:
There is provided an element mapping unit, scanning transmission electron microscope, and element mapping method that enable to acquire an element mapping image very easily. On the scanning transmission electron microscope, the electron beam transmitted through an object to be analyzed enters into the element mapping unit. The electron beam is analyzed of its energy into spectrum by an electron spectrometer and an electron energy loss spectrum is acquired. Because the acceleration voltage data for each element and window data for 2-window method, 3-window method or contrast tuning method are already stored in a database and accordingly the spectrum measurement is carried out immediately even when an element to be analyzed is changed to another, the operator can confirm a two-dimensional element distribution map immediately. Besides, because every electron beam that enters into an energy filter passes through the object point, aberration strain in the electron spectrometer can be minimized and higher energy stability can be achieved. As a result, drift of the electron energy loss spectrum acquired by analyzing the electron beam into spectrum can be minimized and element distribution with higher accuracy can be acquired.
摘要:
An ozone-decomposing agent including a first iron compound and a second iron compound is provided. The second iron compound may have a spinel type structure. The first iron compound of the ozone-decomposing agent may include an oxide selected from Fe2O3, FeO(OH) or Fe(OH)3. The second iron compound of the ozone-decomposing agent may include an oxide selected from MnFe2O4, ZnFe2O4, NiFe2O4, CuFe2O4 or CoFe2O4.
摘要翻译:提供了包含第一铁化合物和第二铁化合物的臭氧分解剂。 第二铁化合物可以具有尖晶石型结构。 臭氧分解剂的第一种铁化合物可以包括选自Fe 2 O 3,FeO(OH)或Fe(OH)3的氧化物。 臭氧分解剂的第二铁化合物可以包括选自MnFe 2 O 4,ZnFe 2 O 4,NiFe 2 O 4,CuFe 2 O 4或CoFe 2 O 4的氧化物。
摘要:
A scanning electron microscope which efficiently makes measurements for plural measurement items at a time and allows easy entry, confirmation and revision of auto measurement parameters. Parameters for creation of a line profile from an image captured by the scanning electron microscope are entered as auto measurement parameters (AMP) to be used as common conditions for all measurement items. Also, plural combinations of edge detection methods and measurement calculation methods are entered as auto measurement parameters to make measurements for plural items.