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Method of delayed turn-off after ignition shutdown of car-mounted equipment

A vehicle-mounted device, closed technology, applied to vehicle components, circuits or fluid pipelines, transportation and packaging, etc., can solve problems such as damage to memory chips, failure to meet storage requirements, etc., achieve the use of fewer components and delay the power-off time of equipment , the effect of avoiding the risk of equipment damage

Inactive Publication Date: 2018-06-15
天津天地伟业投资管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a setting cannot meet the storage requirements of some vehicle-mounted devices, and may also cause damage to the memory chip in the device

Method used

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  • Method of delayed turn-off after ignition shutdown of car-mounted equipment

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Embodiment Construction

[0017] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0018] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0019] A method for delaying shutdown after ignition of a vehicle-mounted device is turned off, the specific process is as follows:

[0020] 1. In the initial state, when the ignition (ACC) power supply is out of power, the system does not work, and the subsequent stage has no output;

[0021] 2. When the car is started, the ignition (ACC) power supply has power, wakes up the system, and supplies power to the subsequent equipment. At the same time, the MCU outputs an output signal, which will be logically or processed with the ignition (ACC) power supply to generate a control signal input To the switch and voltage conversion circuit to ensure the normal operation of the system, that is,...

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PUM

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Abstract

The invention provides a method of delayed turn-off after ignition shutdown of car-mounted equipment. According to the method, when a car ignition (ACC) power supply has power, the equipment can normally work, and when the ignition (ACC) power supply runs out of power, the equipment can be automatically stopped after work is delayed for a period of time. According to the method, the existing defect that after the ignition (ACC) power supply is turned off, the car-mounted equipment powers down instantly is overcome, circuit design is easy, use elements are few, the power-down time of the equipment can be delayed according to the equipment demand, the work delay time can be easily set through the procedure, certain storing and taking demands of the equipment are ensured, and the equipment damage risk caused by sudden power-down can be avoided.

Description

technical field [0001] The invention belongs to the field of vehicle-mounted equipment, and in particular relates to a method for delaying shutdown of the vehicle-mounted equipment after ignition is turned off. Background technique [0002] In the prior art, many vehicle-mounted devices are directly powered from the ignition (ACC) power supply, and when the ignition (ACC) power supply is turned off, the vehicle-mounted devices will leave the power supply. Such a setting cannot meet the storage requirements of some vehicle-mounted devices, and may also cause damage to the memory chip in the device. Therefore, it is necessary to propose a new technical solution to solve the above technical problems. Contents of the invention [0003] In view of this, the present invention aims to propose a delayed shutdown method for vehicle-mounted equipment after the ignition is turned off, which can delay the operation for a period of time after the ignition power is turned off. The desi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/033
CPCB60R16/033
Inventor 瞿关明朱健立于宏志王磊
Owner 天津天地伟业投资管理有限公司
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