Auxiliary control method and device of temperature of vehicular brushless direct current motor

A brush DC motor and auxiliary control technology, which is applied in the direction of excitation or armature current control, can solve problems such as system failure, achieve good results, avoid overheating problems, and have strong practicability

Inactive Publication Date: 2015-04-15
TONGJI UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the temperature is higher than the corresponding limit, if no corresponding measures are taken, the system may not operate normally

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
  • Auxiliary control method and device of temperature of vehicular brushless direct current motor
  • Auxiliary control method and device of temperature of vehicular brushless direct current motor
  • Auxiliary control method and device of temperature of vehicular brushless direct current motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] Such as figure 1 and image 3 As shown, a method for auxiliary temperature control of a brushless DC motor for a vehicle comprises the following steps:

[0034] 1) The temperature sensor collects the controller temperature information of the motor controller and the motor body temperature information of the motor body respectively, and sends them to the signal filtering unit;

[0035] 2) The signal filtering unit performs conditioning and filtering on the temperature information of the controller and the temperature information of the motor body, and then sends it to the temperature controller;

[0036] 3) The temperature controller judges whether the temperature information of the controller input by the signal filtering unit and the temperature information of the motor body are greater than the overheating threshold temperature. At the overheating threshold temperature, that is, step 4) is performed to perform temperature auxiliary control; if all are negative, tha...

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

The invention relates to an auxiliary control method and a device of the temperature of a vehicular brushless direct current motor. The control method comprises the steps that motor body temperature signals and motor controller temperature signals are collected and sent into a temperature controller through a regulating filtering unit; the temperature controller performs improving PI compensate control according to a set temperature limit value; the maximum output power of a motor for avoiding overheat of the motor is calculated; and simultaneously the maximum output power is compared with a power required for vehicle driving, and the minimum value is taken as the motor output power to adjust the temperature of a motor body and a motor controller. The control device comprises two groups of temperature sensors arranged on the motor body and the motor controller, signal filtering units correspondingly connected with the temperature sensors, and the temperature controller connected with the signal filtering units and a vehicle motor system. Compared with the prior art, the method and the device have the advantages that the problem of the overheat of the brushless direct current motor is effectively solved, an automobile can be enabled not to loose power performance excessively when the temperature limit value is approached, and the driving intention of drivers is furthest satisfied.

Description

technical field [0001] The invention relates to the field of control of a brushless DC motor for vehicles, in particular to a temperature auxiliary control method and device for a brushless DC motor for vehicles. Background technique [0002] The problem of overheating has been one of the barriers to the application of brushless DC motor systems in vehicles. The brushless DC motor system includes two parts: the motor body and the controller. When the motor body overheats, the phase winding resistance increases, and even the winding burns out; when the controller is overheated, the control board, especially the power switch tube, will be damaged at high temperature damaged and not functioning properly. In short, severe overheating can cause damage to motor system components and prevent them from operating normally. Therefore, it is necessary to define an appropriate temperature operating range for the motor system, which involves temperature control strategies. [0003] Th...

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 Patents(China)
IPC IPC(8): H02P7/06
Inventor 陈凤祥王明强周苏章桐
Owner TONGJI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap