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Electric windows driving apparatus

一种驱动设备、电动窗的技术，应用在窗、直流电动机的减速装置、电动马达/转换器塞子等方向，能够解决成本增加、不能达到高度精确的控制、设备体积增大等问题，达到保护电路的效果

Inactive Publication Date: 2005-03-16
YAZAKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To deal with this situation, although a method can be conceived in which a diode is placed between the FET (T101) and the ground, the placement of the diode for a large current eventually leads to an increase in the size of the device and an increase in cost, so is not feasible
[0017] Also, if the diode is placed at the position indicated by the reference letter A, a voltage corresponding to the voltage generated in the shunt resistor cannot be generated in the resistor R120 due to the voltage drop caused by the diode thus placed, resulting in failure to achieve high accuracy. control

Method used

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  • Electric windows driving apparatus
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Embodiment Construction

[0051] The embodiment of the present invention will be described based on the drawing. figure 1 It is a circuit diagram showing the configuration of the power window driving device according to the embodiment of the present invention. As shown in the figure, the power window driving device 100 is reversibly driven to rotate the power window driving motor M1. The power window driving device 100 is installed in a vehicle and includes a motor driving circuit 1, a reference current generating circuit (reference current generator) 2, a reference voltage generating circuit (reference voltage generator) 3, a comparison circuit (comparator) 4, current The limit width setting circuit 5 (which is used for current limit operation), the current limit circuit 6 and the logic circuit 7.

[0052] The motor drive circuit 1 includes a relay RY1, which is used to reversibly switch the polarity of the output voltage of the battery power supply VB to control the driving and stopping of the drive mot...

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PUM

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Abstract

A device for driving an electric window comprises a motor for driving the window with pressure supplied by a power supply; a control circuit for stopping or reversing the motor when the motor current is increased; a shunt resistance for detecting the motor current as pressure value is arranged between the motor and a ground wire; and a diode for protecting the control circuit is arranged between the front side of the power and the control circuit.

Description

Technical field [0001] The present invention relates to a power window (power window, also known as an automatic opening and closing type window) driving device, which is suitable for driving the power window, if the power window is blocked by an obstacle, quickly stop or reverse the power window equipped on the vehicle The driving of the window, and more specifically, involves such a technology that even when the positive and negative electrodes of the battery are reversed, the safety of the circuit is ensured. Background technique [0002] In the power window equipped on the vehicle, the motor is reversibly driven by applying battery voltage to switch the rotation of the drive motor between normal and opposite directions, thereby raising or lowering the window glass. [0003] In addition, when operating a power window, it may happen that the window glass is stuck to an obstacle, causing trouble. Among them, if the obstacle is a part of the user's body, the user is accidentally ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05F15/16B60J1/00B60J1/17H02H7/085H02H11/00H02P3/08
CPCH02H11/002H02H7/0851
Inventor 大岛俊藏
Owner YAZAKI CORP
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