Abstract: An electric vehicle includes first and second traveling motors, first and second rotational position sensors, and a measurement controller. The first rotational position sensor detects a rotation angle of the first traveling motor and has a first wheel-speed range in which a deviation of an original position of the first rotational position sensor is measurable. The second rotational position sensor detects a rotation angle of the second traveling motor and has a second wheel-speed range in which a deviation of an original position of the second rotational position sensor is measurable. The second wheel-speed range differs from the first wheel-speed range. The measurement controller executes, in an execution order, measurements of the deviations of the original positions of the first and second rotational position sensors while the electric vehicle is traveling, and switch the execution order on the basis of acceleration or deceleration data of the electric vehicle.

Abstract: A vehicle control apparatus includes an inverter, a torque setting unit that sets a first torque command value of a traveling motor based on an accelerator operation amount, a torque correction unit that corrects the first torque command value to a second torque command value by performing feedback of the result of control of the traveling motor to the first torque command value, an inverter control unit that generates a drive signal of switching elements based on the second torque command value and a carrier signal, and a motor lock determination unit. When the traveling motor is determined to be in the motor lock state by the motor lock determination unit, the torque correction unit sets a feedback gain to be smaller than a threshold gain, and the inverter control unit sets the frequency of the carrier signal to be lower than a threshold frequency.

Abstract: A vehicle control apparatus includes a storage and a processor. The storage holds a first resonance map. The processor calculates a first torque command value that indicates a value of torque to be outputted by a first driving source. The first resonance map includes, as one or more first resonance points, one or more operating points at which resonance occurs in an operating region of the first driving source under a square wave control. The processor decreases or increases the first torque command value to avoid the one or more first resonance points on the condition that a predicted route of transition of an operating point of the first driving source meets the one or more first resonance points.

Abstract: A vehicle control apparatus includes a storage and a processor. The storage holds a first resonance map. The processor calculates a first torque command value and switches a control method of a first driving source. The first driving source includes an electric motor. The first torque command value indicates a value of torque to be outputted by the first driving source. The first resonance map includes, as one or more first resonance points, one or more operating points at which resonance occurs in an operating region of the first driving source under a square wave control. The processor switches the control method of the first driving source from the square wave control to a sine wave control on the condition that a predicted route of transition of an operating point of the first driving source meets the one or more first resonance points.

Abstract: A vehicle control apparatus includes an inverter, a torque setting unit that sets a first torque command value of a traveling motor based on an accelerator operation amount, a torque correction unit that corrects the first torque command value to a second torque command value by performing feedback of the result of control of the traveling motor to the first torque command value, an inverter control unit that generates a drive signal of switching elements based on the second torque command value and a carrier signal, and a motor lock determination unit. When the traveling motor is determined to be in the motor lock state by the motor lock determination unit, the torque correction unit sets a feedback gain to be smaller than a threshold gain, and the inverter control unit sets the frequency of the carrier signal to be lower than a threshold frequency.

Abstract: An electric vehicle includes first and second traveling motors, first and second rotational position sensors, and a measurement controller. The first rotational position sensor detects a rotation angle of the first traveling motor and has a first wheel-speed range in which a deviation of an original position of the first rotational position sensor is measurable. The second rotational position sensor detects a rotation angle of the second traveling motor and has a second wheel-speed range in which a deviation of an original position of the second rotational position sensor is measurable. The second wheel-speed range differs from the first wheel-speed range. The measurement controller executes, in an execution order, measurements of the deviations of the original positions of the first and second rotational position sensors while the electric vehicle is traveling, and switch the execution order on the basis of acceleration or deceleration data of the electric vehicle.

Abstract: A silicon oxide-coated soft magnetic powder has excellent insulating property and provides a high powder compact density. In making the powder, silicon alkoxide is added to a slurry containing soft magnetic powder containing iron in an amount of 20% by mass or more dispersed in a mixed solvent of water and an organic solvent containing water in an amount of 1% by mass or more and 40% by mass or less. A hydrolysis catalyst for the silicon alkoxide is then added to perform silicon oxide coating. The coated magnetic powder has a coverage factor R of 70% or more defined by R=Si×100/(Si+M) (wherein Si and M represent molar fractions of Si and elements constituting the soft magnetic powder obtained by an XPS measurement), a powder compact density of 4.0 g/cm3 or more, and high ?? at high frequency and high insulating property.

Abstract: The present invention provides a catalyst in which a reaction initiation temperature at which self-heating function is exhibited is low and which is capable of suppressing carbon accumulation even when a reaction is repeated. The catalyst of the present invention includes a CeZr-based oxide, silicon, and a catalytically active metal, wherein the CeZr-based oxide satisfies CexZryO2 (x+y=1) and the silicon satisfies molar ratios of 0.02?Si/Zr and 0.01<Si/(Ce+Zr+Si)<0.2. When the catalyst is used, a reduction temperature for generating initial oxygen deficiency can be decreased. Depending on the catalytically active metal, a reduction activation treatment can be performed even at about 20° C. without any need for heating. In a repeated hydrogen generating reaction, the deposition of carbon generated on the surface of the catalyst can be suppressed, and a decrease in catalytic activity can be prevented.

Abstract: The present invention provides a catalyst in which a reaction initiation temperature at which self-heating function is exhibited is low and which is capable of suppressing carbon accumulation even when a reaction is repeated. The catalyst of the present invention includes a CeZr-based oxide, silicon, and a catalytically active metal, wherein the CeZr-based oxide satisfies CexZryO2 (x+y=1) and the silicon satisfies molar ratios of 0.02?Si/Zr and 0.01<Si/(Ce+Zr+Si)<0.2. When the catalyst is used, a reduction temperature for generating initial oxygen deficiency can be decreased. Depending on the catalytically active metal, a reduction activation treatment can be performed even at about 20° C. without any need for heating. In a repeated hydrogen generating reaction, the deposition of carbon generated on the surface of the catalyst can be suppressed, and a decrease in catalytic activity can be prevented.

Abstract: To provide an oxidation catalyst capable of burning PM of diesel engine exhausts gas at a low temperature, and hardly subjected to poisoning due to sulfur oxide. A composite oxide contains Ce, Bi, and M (wherein M is one or more elements selected from Mg, Ca, Sr, and Ba) and oxygen, and is manufactured, with a molar ratio of Ce, Bi, M expressed by Ce:Bi:M=(1?x?y):x:y, satisfying 0<x?0.4, and 0<y?0.4. This composite oxide is suitable as a PM combustion catalyst, and is hardly subjected to poisoning due to sulfur oxide.

Abstract: Diesel particulate filter that can lower the particulate matter (PM) combustion start temperature and use material containing silicon (Si) for a carrier. The carrier, which has a filter function, is allowed to support a perovskite-type complex oxide expressed by formula (1) as follows, wherein 0<x<0.7 and 0?y?1: formula (1)=La1-xBaxMnyFe1-yO3.

Abstract: To provide an oxidation catalyst capable of burning PM of diesel, engine exhausts gas at a low temperature, and hardly subjected to poisoning due to sulfur oxide. A composite oxide contains Ce, Bi, and M (wherein M is one or more elements selected from Mg, Ca, Sr, and Ba) and oxygen, and is manufactured, with a molar ratio of Ce, Bi, M expressed by Ce:Bi:M=(1?x?y):x:y, satisfying 0<x?0.4, and 0<y?0.4. This composite oxide is suitable as a PM combustion catalyst, and is hardly subjected to poisoning due to sulfur oxide.

Abstract: To provide a diesel particulate filter that can lower the PM combustion start temperature and use material containing Si for a carrier. The carrier which has a filter function is allowed to support a perovskite type complex oxide expressed by formula (1): La1?xBaxMnyFe1?yO3??(1) (where 0<x<0.7 and 0?y?1).

Abstract: This is a catalyst suitable for a diesel particulate filter (DPF) that traps particulate matter (PM) present in diesel engine exhaust, being a diesel engine exhaust gas particulate matter oxidation catalyst using a perovskite-type composite oxide that has an NO adsorption domain over the range of 200-450° C. This catalyst induces low-temperature combustion of PM but does not use noble metals so it is inexpensive and its constituent materials are not volatile at exhaust gas temperatures so it has superior durability. The perovskite-type composite oxide contains essentially no Na and is represented by the structural formula RTO3, where R comprises one or more elements selected from a group made up of La, Sr, Ba, Ca and Li, and T comprises one or more elements selected from a group made up of Mn, Fe, Co, Cu, Zn, Ga, Zr, Mo, Mg, Al and Si.

Abstract: A method of producing a perovskite complex oxide containing a noble metal element includes a step of beat-treating a precursor substance containing at least one rare earth element and at least one transition metal element to generate a perovskite complex oxide phase, characterized in that an amorphous substance is used as the precursor substance and the noble metal element is incorporated in the amorphous substance. The perovskite complex oxide obtained by this method contains the noble metal element in its crystal and has a BET specific surface area of greater than 10 m2/g.