Rotating machine drive control device and vehicle

A technology for rotating electrical machines and vehicles, which is applied to control devices, electric power devices, motor control, etc. It can solve problems such as sudden changes in the output of rotating electrical machines, and achieve the effects of preventing demagnetization and suppressing temperature rise

Inactive Publication Date: 2009-12-30
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When the current flowing into the rotating electrical machine is limited to prevent demagnetization of the magnet, the output of the rotating electrical machine may change suddenly

Method used

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  • Rotating machine drive control device and vehicle
  • Rotating machine drive control device and vehicle
  • Rotating machine drive control device and vehicle

Examples

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Embodiment Construction

[0044] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The same symbols are used to denote the same or corresponding parts in the drawings, and description thereof will not be repeated.

[0045] [the whole frame]

[0046] figure 1 It is a schematic block diagram showing an example of a hybrid vehicle equipped with a drive control device for a rotating electrical machine according to an embodiment of the present invention.

[0047] refer to figure 1 , the hybrid vehicle 200 includes a hybrid vehicle drive device 100 , a power distribution mechanism 210 , a differential gear (DG: Differential Gear) 220 , and front wheels 230 . The hybrid vehicle drive device 100 includes a DC power supply B, system relays SR1, SR2, a boost converter 12, inverters 14, 31, a DC / DC converter 20, an auxiliary battery 21, a control device 30, an engine 60, and an AC motor M1, M2. Inverters 14 and 31 constitute an IPM (Intelligent Powe...

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PUM

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Abstract

An AC motor drive control device is mounted on a hybrid vehicle (200). The drive control device includes an inverter (14) which drives an AC motor (M1); and a control device (30) which controls the inverter (14) by switching its mode between a first mode and a second mode which can suppress a higher harmonic component of the output current of the inverter more than in the first mode. The control device (30) controls the inverter (14) in the first mode if the magnet temperature of a permanent magnet is lower than a first threshold temperature and controls the inverter (14) in the second mode if the magnet temperature is above the first threshold temperature.

Description

technical field [0001] The present invention relates to a drive control device for a rotating electrical machine and a vehicle, and particularly relates to a technique for preventing demagnetization of a permanent magnet included in a rotor in a permanent magnet synchronous motor. Background technique [0002] Recently, electric vehicles such as hybrid vehicles and electric vehicles have attracted attention as environmentally friendly vehicles. Such an electric vehicle includes: a power storage device composed of a secondary battery or the like; and a motor generator (Motor Generator) for generating driving force by receiving electric power from the power storage device. The motor generator generates driving force at the time of starting, acceleration, etc., and converts the kinetic energy of the vehicle into electric energy and recovers it in the power storage device at the time of braking. [0003] As a motor generator mounted on such an electric vehicle, a permanent magn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/12H02P6/08B60L11/14B60L50/16H02P6/06
CPCY02T10/6239B60L2260/167B60K6/547H02P29/0066B60K6/365B60W20/00B60K6/445B60K1/02B60W2510/087Y02T10/642B60W10/08B60L2240/425H02P6/10B60W50/0097H02P29/662Y02T10/62Y02T10/64B60W2510/083B60W2510/104
Inventor 高崎哲
Owner TOYOTA JIDOSHA KK
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