Motor temperature acquisition device and vehicle

A technology of motor temperature and acquisition device, applied in the field of vehicles, can solve the problems of reduced resolution and accuracy of temperature value, easy to cause misjudgment, etc., to expand the temperature measurement range, ensure reliable operation, and improve accuracy and reliability. Effect

Active Publication Date: 2016-03-16
BEIJING ELECTRIC VEHICLE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The characteristic of the thermistor is that the resistance value changes greatly due to the temperature change in the low temperature area, and the voltage change after the voltage division is relatively obvious. The MCU can look up the table according to its temperature characteristic curve, and through the interpolation method Get the

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  • Motor temperature acquisition device and vehicle
  • Motor temperature acquisition device and vehicle
  • Motor temperature acquisition device and vehicle

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[0030] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0031] In order to ensure the accuracy and reliability of motor control, high resolution and accuracy of temperature acquisition and a large measurement range are required. An embodiment of the present invention provides a motor temperature acquisition device, which can adapt to temperature acquisition and ensure temperature acquisition. accuracy.

[0032] The following describes an apparatus for collecting motor temperature according to an embodiment of the present invention with refere...

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Abstract

The invention discloses a motor temperature acquisition device. The motor temperature acquisition device comprises a temperature acquisition module, an adjusting module, a switch module and a control module; the temperature acquisition module is used for acquiring a motor temperature and generating a temperature acquisition value; the adjusting module is used for adjusting the temperature acquisition value; the switch module is respectively connected with the temperature acquisition module and the adjusting module and controls a connecting state of the adjusting module and the temperature acquisition module; the control module is used for obtaining the temperature acquisition value and is respectively connected with the switch module and the temperature acquisition module; and the control module controls the switch module based on the temperature acquisition value. The motor temperature acquisition device can improve resolution and precision of motor temperature acquisition. The invention also discloses a vehicle.

Description

technical field [0001] The invention belongs to the technical field of vehicles, and in particular relates to a motor temperature acquisition device and a vehicle. Background technique [0002] Motor temperature rise is a measure of motor loss and heat dissipation. Motor windings with different insulation levels have different limited temperatures, which is an important indicator for evaluating motor performance. During the actual operation of the motor, whether it is overvoltage, undercurrent, overcurrent, phase loss, or overload, stalled, speed regulation circuit failure, abnormal power supply voltage and other faults, it will cause local overheating of the motor. Coupled with the ambient temperature and the heat generated by the motor itself due to long-term operation, the temperature of the motor will rise rapidly. Therefore, if the temperature of the motor can be measured quickly and accurately and controlled, the normal operation of the system can be guaranteed to a l...

Claims

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Application Information

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IPC IPC(8): H02K11/25
CPCH02K2213/12
Inventor 贺虹刘荣宏肖胜然
Owner BEIJING ELECTRIC VEHICLE
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