Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rotary electric machine system

A technology for rotating motors and rotors, applied in motors, control systems, motor control, etc., can solve problems such as electrolytic corrosion and surface roughness, and achieve the effect of ensuring electrical insulation performance and high reliability

Inactive Publication Date: 2018-04-06
TOYOTA JIDOSHA KK
View PDF8 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, if an electrically closed circuit is formed from the rotor core through to the rotor shaft, including bearings with the rotor shaft rotatably supported on peripheral members, there is a concern that electrolytic corrosion will occur, such as, for example, caused by Surface roughness caused by sparks

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rotary electric machine system
  • Rotary electric machine system
  • Rotary electric machine system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0026] Such as figure 1 As shown, the vehicle 100 is a so-called hybrid vehicle in which an internal combustion engine 101 and rotating electric machines 111, 112 are mounted as power sources. Each of the rotary electric machines 111, 112 functions as a motor generator (MG). That is, the vehicle 100 includes the rotating electric machine system according to the present embodiment. The vehicle 100 is constructed such that the entire vehicle is controlled by an electronic control unit (ECU) 1 and, for example, these engine 101 and rotary electric machines 111, 112 are efficiently driven. The power of these engine 101 and rotary electric machines 111 and 112 is transmitted to drive shaft 151 via power transmission mechanism 121 and the like. The power transmission mechanism 121 functions as a differential device. Thus, wheels (not shown) rotate, and the vehicle 100 travels.

[0027] The engine 101 converts combustion energy of fuel into rotational driving force, and outputs t...

no. 2 example

[0092] Such as Figure 7A to Figure 7B As shown, the pressure regulating valve 41 is installed on the discharge side of the MOP 11 in the first distribution oil passage 163 of the hydraulic circuit 161, the MOP 11 and the EOP 21 are incorporated in the hydraulic circuit 161, and the pressure regulating valve 42 is installed in the hydraulic circuit 161 The discharge side of the EOP 21 in the second distribution oil passage 164 . The pressure regulating valve 41 is set to reduce the hydraulic pressure of the lubricating oil discharged to the first distribution oil passage 163 to a certain pressure so as not to be affected by pressure fluctuations discharged from the MOP 11 . The pressure regulating valve 42 is set to reduce the hydraulic pressure of the lubricating oil discharged to the second distribution oil passage 164 to a certain pressure so as not to be affected by pressure fluctuations discharged from the EOP 21 . That is, the pressure regulating valves 41, 42 constitut...

no. 3 example

[0102] Next, Figure 9 is a flowchart showing a rotating electric machine system according to a third embodiment of the present invention. As an example, a case will be described where the configuration of the present embodiment is basically the same as that of the first embodiment described above, however, the configuration of the present embodiment is not limited to this configuration. Of course, the configuration of the present embodiment can be applied to the second embodiment. Such as Figure 9 As shown, the ECU 1 executes processing similar to steps S11 to S13 in parallel with step S18 according to the first embodiment described above, in which the ECU 1 repeatedly determines whether the elapsed time measured by the timer from when the supply of lubricating oil is increased The set elapsed time threshold is exceeded. When the ECU 1 determines that there is no possibility of occurrence of electrolytic corrosion, the ECU 1 interrupts the process of increasing the supply...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A rotary electric machine system includes: a rotary electric machine; a lubrication mechanism configured to supply lubricating oil to a bearing of the rotary electric machine; and a control unit configured to control the supply of lubricating oil from the lubrication mechanism. The control unit is configured to acquire an operation status of the rotary electric machine and determine whether thereis a possibility of occurrence of electrolytic corrosion in the bearing. The control unit is configured to, when it is determined that there is a possibility of occurrence of electrolytic corrosion, increase the supply of lubricating oil to the bearing by controlling the lubrication mechanism as compared to the supply of lubricating oil to the bearing at a time when it is not determined that thereis a possibility of occurrence of electrolytic corrosion.

Description

technical field [0001] The present invention relates to a rotating electrical machine system for preventing electrolytic corrosion in bearings of a rotating electrical machine. Background technique [0002] A rotary electric machine driven by using electric power is mounted on various devices and used. In this type of rotating electrical machine, fluctuations in the magnetic field due to power supply to the stator side generate induced electromotive force on the rotor side, and as a result, a potential difference is generated between the rotor shaft and peripheral members of the rotor shaft. For this reason, if an electrically closed circuit is formed from the rotor core through to the rotor shaft, including bearings with the rotor shaft rotatably supported on peripheral members, there is a concern that electrolytic corrosion will occur, such as, for example, caused by Surface roughness caused by sparks. [0003] For example, Japanese Patent Application Publication No. 201...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W10/30B60W10/08B60K6/365
CPCB60K6/365B60W10/08B60W10/30B60W20/00B60W2510/08B60W2520/10B60W2540/00B60W2710/08B60W2710/30B60L3/0061H02K11/21H02P29/0241H02K7/08Y02T10/64H02P31/00H02P29/024
Inventor 松原智也
Owner TOYOTA JIDOSHA KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com