An interference signal filtering device, a vehicle and an interference signal filtering method thereof
A technology of interference signal and filtering, which is applied in the direction of electric vehicles, interference to communication, vehicle components, etc., can solve problems affecting the control reliability of electronic control units, and achieve the effect of improving control reliability
Active Publication Date: 2022-05-31
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0004] The object of the present invention is to provide an interference signal filtering device, an automobile and an interference signal filtering method thereof, so as to solve the problem that the control signal of the electronic control unit of the automobile will be affected by the electromagnetic interference due to the control reliability of the electronic control unit. problem, to achieve the effect of improving the control reliability of the electronic control unit by filtering the electromagnetic interference in the control signal of the electronic control unit of the car
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[0029] According to an embodiment of the present invention, an interference signal filtering device is provided. Referring to the apparatus of the present invention shown in FIG. 1
[0035] The comparison unit is configured to compare the voltage of the input control signal with a set reference voltage
[0037] Wherein, the first sampling module obtains the sampling voltage after sampling the voltage of the input control signal. Place
[0041] wherein, the reference voltage module is connected to the inverting input end of the comparator, the reference voltage through the
[0047] Wherein, the voltage of the input control signal is charged to the charging module. The adjustment module can adjust
[0049] Wherein, the voltage of the input control signal is charged to the capacitor module through the resistance module. the electricity
[0057] The logic processing unit is configured to perform logic on the first filtering signal and the second filtering signal
[0059] In some em...
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The invention discloses an interference signal filtering device, a car and an interference signal filtering method thereof. The device comprises: a first filtering unit and a second filtering unit; wherein the first filtering unit is configured as The electromagnetic interference signal in the input control signal is filtered to obtain the first control signal; the input control signal is the control signal of the interference signal to be filtered; the input control signal includes: the whole vehicle of the automobile A wake-up signal of the controller; the second filtering unit is configured to filter the strong electric interference signal in the first control signal to obtain a second control signal, which is used as the input control signal to filter out Effective control signal after interference signal. This solution improves the control reliability of the electronic control unit by filtering the electromagnetic interference in the control signal of the electronic control unit of the vehicle.
Description
A kind of interference signal filtering device, automobile and interference signal filtering method thereof technical field The invention belongs to the technical field of automobiles, be specifically related to a kind of interference signal filtering device, automobile and interference signal thereof The invention relates to a filtering method, in particular to an on-board wake-up circuit for automatically filtering out interference signals, a car and a method for filtering out interference signals. Background technique [0002] With the rapid development of science and technology, new energy vehicles gradually enter people's lives. Electricity of new energy vehicles The control unit (such as the vehicle controller (VCU)) is composed of various electronic components, and various electronic components will produce a lot of There are many electromagnetic interferences, which will cause the circuit controlled by the electronic control unit to malfunction, which has a majo...
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IPC IPC(8): H04K3/00H04B10/80
CPCH04K3/20H04B10/802Y02T10/72
Inventor 单成龙胡聪宋爱刘兆斌
Owner GREE ELECTRIC APPLIANCES INC