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Wake-up signal generating circuit and vehicle charging system

A technology for waking up signals and generating circuits, applied in electric vehicle charging technology, charging stations, electric vehicles, etc., can solve problems such as the inability to wake up the controller, the inability to fully realize the expected output signal scheme, and the inability of the controller to enter sleep, etc.

Active Publication Date: 2021-07-13
UNITED AUTOMOTIVE ELECTRONICS SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a wake-up signal generating circuit and a vehicle charging system to solve the problem that the charging wake-up circuit in the prior art cannot fully realize a better expected output signal scheme, and cannot wake up the controller or Issues that keep controllers from going to sleep

Method used

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  • Wake-up signal generating circuit and vehicle charging system
  • Wake-up signal generating circuit and vehicle charging system
  • Wake-up signal generating circuit and vehicle charging system

Examples

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Effect test

Embodiment 1

[0063] Please refer to Figure 2a and Figure 2b ,in, Figure 2a It is a schematic structural diagram of a wake-up signal generating circuit according to an embodiment of the present invention; Figure 2b It is a structural schematic diagram of a wake-up signal generating circuit according to another embodiment of the present invention.

[0064] The wake-up signal generating circuit of this embodiment is as Figure 2a shown. The signal trigger circuit includes a first trigger module 100 and a second trigger module 200, the input of the first trigger module 100 is connected to the input of the second trigger module 200, and the output of the first trigger module 100 terminal is connected to the output terminal of the second trigger module 200; in this embodiment, the input terminal of the first trigger module 100 is configured as the input terminal of the signal trigger circuit, and the input terminal of the first trigger module 100 The output terminal is configured as the...

Embodiment 2

[0099] Please refer to Figure 3 to Figure 6 ,in, image 3 It is a schematic circuit diagram of a wake-up signal generating circuit according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the waveforms of the wake-up signal generating circuit in an embodiment of the present invention when the gun is not inserted, the instant when the gun is switched to the inserted gun, and the gun is inserted and the charging switch is not closed; Figure 5 It is a schematic diagram of the waveforms of the wake-up signal generating circuit of an embodiment of the present invention at the moment when the gun is inserted and the charging switch is not closed, at the moment when the gun is inserted and the charging switch is closed, and after the gun is inserted and the charging switch is closed; Figure 6 It is a schematic diagram of the waveforms of the wake-up signal generating circuit in an embodiment of the present invention after the charging pile is po...

Embodiment 3

[0140] This embodiment provides a vehicle charging system, including a vehicle charging port, the above-mentioned wake-up signal generating circuit and a controller;

[0141] The controller includes a wake-up signal input terminal, and the controller is used to receive the first level through the wake-up signal input terminal and switch its own state to a working mode;

[0142] The input end of the first trigger module is connected to the charging port of the vehicle, and the output end of the first trigger module is connected to the wake-up signal input end.

[0143] Since the above-mentioned wake-up signal generation circuit is adopted in this embodiment, the controller can be woken up at an appropriate time to perform necessary logic control, and sleep at other times to reduce energy consumption, which has a better effect.

[0144] To sum up, in the wake-up signal generating circuit and the vehicle charging system provided by Embodiments 1 to 3, the signal triggering circui...

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Abstract

The invention provides a wake-up signal generating circuit and a vehicle charging system.The signal triggering circuit comprises a first triggering module and a second triggering module, and when the first triggering module receives a falling edge signal, the time interval between the falling edge signal and a previous rising edge signal is larger than a first preset duration, the first triggering module outputs the pulse signal of the first level, and under other conditions, the second level is output; and when the second trigger module receives a rising edge signal, the time interval between the rising edge signal and the last falling edge signal is greater than a second preset duration, the second triggering module outputs the pulse signal of the first level, and in other cases, the second triggering module outputs the second level. Through the configuration, the wake-up signal is output at a proper time, the actual working requirement of the controller is met, and the problems that a charging wake-up circuit in the prior art cannot completely realize a better expected output signal scheme and cannot wake up the controller or enable the controller not to enter a sleep state under a specific working condition are solved.

Description

technical field [0001] The invention relates to the field of vehicle control, in particular to a wake-up signal generating circuit and a vehicle charging system. Background technique [0002] In order to reduce power consumption, automotive controllers usually have two modes of sleep and work. In sleep mode, the controller only retains a small number of functions such as communication, and the power consumption is extremely low; when the controller detects a specific signal, it enters the working mode and starts to work normally. Mode The specific signal to enter the working mode is a wake-up signal. There are many commonly used wake-up signals, such as car key signals, CAN (Controller Area Network controller local area network) communication signals, etc. [0003] GB / T 18487 "Electric Vehicle Conductive Charging System" and IEC 61851 <Electric VehicleConductive charging system> (for the convenience of description, hereinafter referred to as "standard") specify the te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/00B60L53/14H02J7/00H02J7/34
CPCB60L53/00B60L53/14H02J7/0069H02J7/345Y02T10/70Y02T10/7072Y02T90/14Y02T90/12
Inventor 孙旭冉杨守建
Owner UNITED AUTOMOTIVE ELECTRONICS SYST
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