Unlock instant, AI-driven research and patent intelligence for your innovation.

Anti-clamping electric window system based on single chip microcomputer

A technology for electric windows and single-chip microcomputers is applied in door/window accessories, power control mechanisms, and wing leaf control mechanisms, etc., which can solve problems such as easy damage, increased use costs, and system instability, and achieve the effect of ensuring driving safety.

Inactive Publication Date: 2014-08-20
CHENGDU FANXINJIA TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increased use costs, and bring about system instability and easy damage

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
  • Anti-clamping electric window system based on single chip microcomputer
  • Anti-clamping electric window system based on single chip microcomputer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Functions that can be realized by the control module:

[0018] (1) Automatic lift: press the door control key for a short time (less than 300 ms), the window will automatically rise to the top or fall to the bottom, and press any key of the same switch for a short time (less than 300 ms), the window will stop automatically rising or falling;

[0019] (2) Manual lifting: press the window control button for a long time (more than 300 ms when the button is pressed), the window will go up or down, release the button during the up or down process, and the window will stop immediately;

[0020] (3) Stop at the top: when the window reaches the top or bottom position, it will stop automatically, and the window motor will be powered off;

[0021] (4) If the window glass encounters a certain resistance during the automatic rising process, it will automatically stop and fall for a certain distance, which can effectively prevent accidental pinching of people or objects.

Embodiment 2

[0023] MCU module

[0024] combined with figure 2 There is 16K Flash in the single-chip microcomputer, and there are multiple clock sources to choose from. It integrates 10-bit AD converter, enhanced addressable USART and other modules. Choose TJA1020 as the LIN transceiver, TJA1020 is the interface between LIN master-slave protocol controller and LIN physical layer bus, mainly used in auxiliary network in the car, its baud rate is 2.4-20 kbit / s. The transmission data stream input by the controller at the TXD pin is converted into a LIN bus signal through the LIN transceiver, and the conversion rate and waveform are controlled by the transceiver to reduce electromagnetic emissions (EME). The output pin of the LIN bus is pulled high through an internal termination resistor. The transceiver detects the data flow at the input pin of the LIN bus and sends it to the microcontroller through the pin RXD. TJA1020 has a baud rate of up to 20 kbit / s and extremely low electromagnetic...

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 discloses an anti-clamping electric window system based on a single chip microcomputer, comprising a door and window motor, a glass lifter, a control switch, a control module and the single chip microcomputer and also comprising an intelligent power driving device for driving the window motor. The anti-clamping electric window system is provided with an LIN (local interconnect network) bus for communication. In the system, the anti-clamping function of the window can be realized without needing to install a sensor on the basis of the existing window motor, the fault content can be displayed on a user interface in time, and a door is controlled in real time, so that the driving safety is ensured.

Description

technical field [0001] The invention relates to the technical field of automotive electronics, in particular to an anti-pinch electric window system. Background technique [0002] In order to ensure the safety of passengers, many passenger cars now adopt electric Anti-Pinch Window Lifter (APWL). In the existing APWL, a hall element is installed on the motor of the window lifter to sense whether the motor is resisted, or other optical sensors are installed. Such power windows require additional sensors to be installed on the existing normal window regulators. It increases the cost of use, and brings about system instability and easy damage. Contents of the invention [0003] Aiming at the above-mentioned prior art, the technical problem to be solved by the present invention is: to install an intelligent anti-pinch electric window, an additional sensor needs to be installed on the ordinary window regulator. [0004] In order to solve the above technical problems, the pres...

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): E05F15/20E05F15/73
Inventor 高静袁代华邓金智
Owner CHENGDU FANXINJIA TECH