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Rotary electric machine control device and electric power steering apparatus using the same

A technology for rotating electrical machines and control devices, which is used in motor control, power steering mechanisms, electric steering mechanisms, etc.

Pending Publication Date: 2020-10-20
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, it is possible to select an unintended drive mode

Method used

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  • Rotary electric machine control device and electric power steering apparatus using the same
  • Rotary electric machine control device and electric power steering apparatus using the same
  • Rotary electric machine control device and electric power steering apparatus using the same

Examples

Experimental program
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Embodiment approach

[0017] Figure 1 to Figure 10 One embodiment is shown in . Such as figure 1 As shown, an ECU (Electronic Control Unit) 10 serving as a rotary electric machine control device is provided to control the drive of a motor 80 as a rotary electric machine, and the ECU 10 is used together with the motor 80 as an electric power steering for assisting the steering operation of the vehicle equipment8.

[0018] The electric power steering apparatus 8 is provided as a part of a steering system 90 of the vehicle. In addition to the electric power steering apparatus 8 , the steering system 90 includes a steering wheel 91 , a steering shaft 92 , a pinion 96 , a rack shaft 97 , and wheels 98 as steering members.

[0019] The steering wheel 91 is connected to a steering shaft 92 . A torque sensor 94 is provided on the steering shaft 92 to detect steering torque. The torque sensor 94 has a first sensor element ( TRQ1 ) 194 and a second sensor element ( TRQ2 ) 294 . Each sensor element is ...

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PUM

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Abstract

The invention discloses a rotary electric machine control device and an electric power steering apparatus using the same. The rotary electric machine control device is provided to control a motor having motor winding sets and includes a plurality of inverter circuits and a plurality of control circuits capable of mutual communication. The inverter circuits switch over the current supply to the motor winding sets. The control circuits include driver control sections, which control the inverter circuits provided correspondingly, and abnormality monitor sections, which monitor the abnormality. The abnormality monitor sections monitor the abnormality of the own system and the other system based on the plurality of abnormality information. The driver control sections change a control mode according to the abnormal state. It is thus possible to control the driving of the motor appropriately based on the abnormality state.

Description

technical field [0001] The present invention relates to a rotary electric machine control device and an electric power steering apparatus using the same. Background technique [0002] The conventional rotating electric machine control device exemplified in JP 2018-129996A controls the rotating electric machine by acquiring power relay information related to power relays of other systems and monitoring the operating states of other systems. [0003] A conventional rotary electric machine control device determines a drive mode by monitoring the operating states of other systems based on power relay information of other systems. Here, for example, when both the inter-computer communication and the monitor circuit for monitoring the power relay information of other systems fail, the two systems independently operate without coordination or stop operating. That is, there is a possibility that an unintended drive mode is selected. Contents of the invention [0004] An object o...

Claims

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Application Information

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IPC IPC(8): B62D5/04H02P27/06
CPCB62D5/046B62D5/0481B62D5/0484B62D5/049H02P27/06B62D5/0403B62D5/0493B62D5/0412B62D5/0463H02P29/028H02P25/22H02P29/024H02P25/024
Inventor 中村功一中岛信赖
Owner DENSO CORP
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