摘要:
Apparatus controlling a permanent magnet rotary electric machine. After the apparatus controls a current control portion, when a rotor of the machine rotates at a constant speed, to supply a predetermined current to an armature, the apparatus performs a dq vector control process by determining a predetermined temporarily set value as a magnetic pole position correction quantity while a d-axis current command value and a q-axis current command value in the dq vector control process performed on a dq coordinate system that has a d-axis extending in the direction of a magnetic field of the permanent magnet of the rotor and a q-axis extending in a direction perpendicular to the d-axis. Then, the apparatus obtains the magnetic pole position correction quantity based on a predetermined operation expression using the d-axis voltage command value and the q-axis voltage command value from the dq vector control process.
摘要:
A controller of a permanent magnet type rotary motor of the present invention includes: a current difference calculator decomposing a primary voltage difference which is a difference between a primary voltage of the permanent magnet type rotary motor and a maximum voltage corresponding to a source voltage, into a field-axis voltage difference component and a torque-axis voltage difference component in the rotatory magnetic flux coordinate by the use of a phase angle of the primary voltage, and calculating a field-axis current difference component and a torque-axis current difference component in the rotatory magnetic flux coordinate by the use of the voltage difference component, a field-axis inductance, and a torque-axis inductance; and a target current corrector correcting a field-axis target current and a torque-axis target current in the rotatory magnetic flux coordinate so that current difference components are zero.
摘要:
A controller of a permanent magnet type rotary motor of the present invention includes: a current difference calculator decomposing a primary voltage difference which is a difference between a primary voltage of the permanent magnet type rotary motor and a maximum voltage corresponding to a source voltage, into a field-axis voltage difference component and a torque-axis voltage difference component in the rotatory magnetic flux coordinate by the use of a phase angle of the primary voltage, and calculating a field-axis current difference component and a torque-axis current difference component in the rotatory magnetic flux coordinate by the use of the voltage difference component, a field-axis inductance, and a torque-axis inductance; and a target current corrector correcting a field-axis target current and a torque-axis target current in the rotatory magnetic flux coordinate so that current difference components are zero.
摘要:
A battery pack includes a battery assembly having a plurality of battery cells, a busbar module that includes a plurality of conductors and an insulating member which holds the conductors, a battery control unit provided at an end portion of the battery assembly in an arrangement direction of the battery cells, and an extraction conductor that connects a total electrode terminal connected to the battery assembly to a main circuit terminal of the battery control unit. The extraction conductor has a water escape portion which is located below an imaginary line connecting the total electrode terminal to the main circuit terminal, and an upper end of the water escape portion is formed at a location that is lower than a lower end of the main circuit terminal.
摘要:
A power supply apparatus 1 includes: a battery cell assembly 2 including battery cells 3 having a positive terminal 11 at one end and a negative terminal 12 at the other end; a busbar module 5 attached to the assembly 2 and configured to connect the cells 3 in series with each other; and a pair of electric wires 9 connected to electrodes 11, 12 taking out a voltage of the series-connected cells 3. The busbar module 5 includes: bus bars 6 configured to connect the positive terminal 11 and the negative terminal 12 of the mutually adjacent battery cells 3 of the assembly 2; a plate 8 disposed on the assembly 2 with the bus bars 6 attached thereto; and an electric wire holding portion 18 provided on the plate 8 configured to hold one electric wire 9a of the pair of the electric wires 9. The electric wire holding portion 18 extends in the arrangement direction X in which the cells 3 are arranged at a central portion of the plate 8 in the width direction Z orthogonal to the direction X of the battery cells 3.
摘要:
A power supply system including a plurality of batteries includes a busbar, a terminal and a busbar module. The busbar connects a first electrode of one of the batteries with a second electrode of another one of the batteries. The terminal is mounted on the busbar and is contacted with the first electrode. The busbar module has a bulkhead defining a space accommodating the busbar. A locking member is extended from the bulkhead into the space and restricts the busbar. An abutment portion is provided at an edge part of the terminal. The abutment portion abuts the locking member when the terminal is rotated about the first electrode.
摘要:
A free fall detection device capable of detecting a fall accompanied by rotation is provided. A fall accompanied by rotation is detected based on a waveform of an acceleration signal output from the acceleration detection unit and an angular velocity signal output from the angular velocity detection unit. A gravity center acceleration of the device to be protected is calculated from the acceleration detected by the acceleration detection unit and from the angular velocity detected by the angular velocity detection unit. Even when the device being protected rotates as it falls, the fall of the device can be detected from the detected acceleration or angular velocity. Further, by calculating the gravity center acceleration not affected by the rotation, it is possible to detect a fall of the device with high precision even if the device rotates as it falls.