A Thermal Protection Method Based on Current Sampling Motor Controller

A technology of motor controller and current sampling, applied in the direction of motor control, control system, electrical components, etc., can solve problems such as imperfect thermal protection function of motor controller

Active Publication Date: 2021-01-15
EAST JOY LONG AUTOMOBILE ELECTRONICS SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a thermal protection method based on current sampling motor controller for the imperfect thermal protection function of the existing motor controller with anti-pinch function, so as to ensure the anti-pinch function, improve customer experience, protect Safety of life and property of people in the car

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  • A Thermal Protection Method Based on Current Sampling Motor Controller
  • A Thermal Protection Method Based on Current Sampling Motor Controller

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Embodiment Construction

[0033] A thermal protection method based on a current sampling motor controller of the present invention, the motor control system includes motor-driven actuators (window lifter, sunroof mechanism, electric side sliding door mechanism, electric welcome pedal mechanism, electric tailgate mechanism etc.) and motor controllers (window controller, sunroof controller, electric side sliding door controller, welcome pedal controller, tailgate controller, etc.), the motor controller drives the motor drive to execute the operation, so The motor mechanism drive mechanism drives the window up and down, side door sliding, pedal unfolding and folding, tailgate lifting and closing, etc. The motor controller (window controller, sunroof controller, electric side sliding door controller, welcome pedal control controller, tailgate controller, etc.) to connect operation buttons, network bus (LIN, CAN) and motor-driven actuators, etc.

[0034] For a brief description of the motor thermal protecti...

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Abstract

The invention discloses a heat protection method based on a current sampling motor controller. A motor operation current is sampled through a motor controller in real time, in combination with the software algorithm and the strategy, E=k*I2*t, the k is a constant, the I is the motor operation current, the t is the motor operation time, for a motor having a hardware heat protector and a motor having no hardware heat protector, the motor heat protection function is respectively realized, an anti-clamping reversal function is guaranteed to be preferable, and personal life safety is guaranteed. The method is advantaged in that for the motor having the hardware heat protector, the anti-clamping reversal function is guaranteed to be preferable through software heat protection, the motor can be further guaranteed to perform performance, and waste because of increase of cost caused by overlarge type selecting performance of the motor can be avoided; for the motor having no hardware heat protector, the anti-clamping reversal function is guaranteed to be preferable through software heat protection, the motor can be prevented from being burnt, and increase of extra cost of the hardware heat protector can be further avoided.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to a thermal protection method based on a current sampling motor controller. Background technique [0002] During the operation of the motor, there are various losses (iron loss, copper loss, etc.), and these losses are converted into heat energy, which increases the temperature of each part of the motor and eventually exceeds the ambient temperature. If the temperature of the motor is too high, the aging of the insulation material will be accelerated, the insulation performance will be reduced, and the motor may even be burned in severe cases. [0003] Motor thermal protection is a protection measure to prevent the motor from overheating and damage to the motor insulation caused by overload, poor ventilation, high ambient temperature or too frequent starts. A "bottom line" safeguard. [0004] The traditional motor thermal protection scheme uses the direct temperature mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P29/60
CPCH02P29/60
Inventor 戴飞胡欢阙持亮徐伯卓沈亚芳
Owner EAST JOY LONG AUTOMOBILE ELECTRONICS SHANGHAI
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