JP6662263B2 - Information output device - Google Patents

Description

  The present disclosure relates to an information output device.

  A power supply control device for a vehicle that controls power supply to a load that receives a supply of DC power from a vehicle battery, wherein a switching element on a wiring that supplies power is controlled to be turned off when a power amount exceeds a predetermined value. Is known (for example, see Patent Document 1).

JP 2000-032676 A

  However, with the above-described conventional techniques, it is difficult to output information indicating the completion of charging of the information terminal via the accessory socket or the USB charger. Completion of charging of the information terminal via the accessory socket or the like is highly convenient information for the user.

  Therefore, according to one aspect, an object of the present invention is to be able to notify completion of charging of an information terminal.

According to one aspect, a power supply line connecting the Accessories socket or USB charger can be charged in the information terminal, between a power supply,
A current sensor for detecting a magnitude of a current flowing through the power supply line;
When the predetermined information output flag is 0, the discharge flag is checked,
When the discharging flag is 0 and the detection value of the current sensor is larger than 0, the discharging flag is set to 1,
When the discharging flag is 1 and the detection value of the current sensor has become approximately 0 from a state greater than 0, predetermined information indicating that charging of the information terminal has been completed is output to the display device, Set the information output flag to 1, start the timer,
When the predetermined information output flag is 1, the timer is checked, and when the predetermined time is exceeded, the output of the predetermined information is stopped, and the predetermined information output flag is set to 0 . An information output device is provided.

  According to one aspect, the completion of charging of the information terminal can be notified.

FIG. 2 is a diagram schematically illustrating an example of an information output device 1. 6 is a schematic flow of an operation example of the processing device 20.

  Hereinafter, each embodiment will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a diagram schematically illustrating an example of the information output device 1.

  The information output device 1 is provided in a vehicle. The information output device 1 includes a power supply line 2, a current sensor 3, a switching element 6, a meter 10, a processing device 20, and an accessory socket 30. The processing device 20 and the switching element 6 may be mounted in a power distribution box.

  The power supply line 2 connects the power supply 4 as a battery and the accessory socket 30. The power supply line 2 is provided with a power supply switch 5 and a switching element 6 between the power supply 4 and the accessory socket 30.

  The current sensor 3 detects a magnitude (current value) of a current flowing through the power supply line 2.

  The switching element 6 is a switch for turning on / off a conduction state between the power supply 4 and the accessory socket 30. The switching element 6 is formed by a transistor such as an FET (Field effect transistor). The switching element 6 is in an ON state in a normal state, for example. When the power switch 5 is on and the switching element 6 is on, the information terminal 40 (smartphone, tablet, or the like) can be charged via the accessory socket 30. During charging, the information terminal 40 is electrically connected to the accessory socket 30 via the charging cord 50.

  The meter 10 includes a multi-information display 12 (an example of a display device).

  The processing device 20 is communicably connected to the meter 10 via a communication line 60 (for example, a bus such as a controller area network (CAN). The processing device 20 includes a CPU (central processing unit).

  The processing device 20 is electrically connected to the switching element 6. When detecting an overcurrent based on the current sensor 3, the processing device 20 turns off the switching element 6 to realize an overcurrent protection function.

  The processing device 20 is electrically connected to the current sensor 3. The processing device 20 displays the charge of the information terminal 40 on the multi-information display 12 of the meter 10 when the detection value of the current sensor 3 becomes substantially 0 from a state larger than 0 based on the detection value of the current sensor 3. Output predetermined information indicating completion. The predetermined information may be a picture or a character indicating the completion of charging of the information terminal 40, for example, a message such as “charging completed”.

  The accessory socket 30 is provided in the vehicle interior. For example, an information terminal 40 is connected to the accessory socket 30 via a charging cord 50. Thus, the information terminal 40 can be charged.

  According to the present embodiment, when charging the information terminal 40 with the accessory socket 30 of the automobile, the charging current value is detected, and when the current value becomes substantially 0, the predetermined information is output to the user such as a driver. Notification of completion of charging. As a result, information that is highly convenient for the user can be output.

  Next, an operation example of the processing device 20 will be outlined with reference to the schematic flow of FIG.

  First, in step S0, the processing device 20 determines whether the power switch 5 is on. If the power switch 5 is in the ON state, the process proceeds to step S1, otherwise, the process of the current cycle ends.

  In step S1, the processing device 20 determines whether or not the predetermined information output flag is “0”. The predetermined information output flag indicates whether or not the predetermined information is output. When the predetermined information output flag is “1”, it indicates that the predetermined information is being output. The predetermined information output flag is stored in, for example, a volatile memory (not shown) that is reset when the power switch 5 is turned off, and the initial value of the predetermined information output flag is “0”. If the predetermined information output flag is "0", the process proceeds to step S2; otherwise, the process proceeds to step S9.

  In step S2, the processing device 20 determines whether or not the discharging flag is "0". The discharging flag indicates whether or not the current is supplied to the outside through the accessory socket 30. When the discharging flag is “1”, the state in which the current is supplied to the outside via the accessory socket 30 is present. Represent. The discharging flag is stored in, for example, a volatile memory (not shown) that is reset when the power switch 5 is turned off, and the initial value of the discharging flag is “0”. If the discharging flag is "0", the process proceeds to step S3; otherwise, the process proceeds to step S5.

  In step S3, the processing device 20 determines whether the detected value of the current sensor 3 is significantly larger than 0 based on the detected value of the current sensor 3 (the latest detected value). If the detection value of the current sensor 3 is significantly larger than 0, the process proceeds to step S4; otherwise, the process of the current cycle ends.

  In step S4, the processing device 20 sets the discharging flag to "1".

  In step S5, the processing device 20 determines whether the detection value of the current sensor 3 is substantially 0 based on the detection value of the current sensor 3 (the latest detection value). "Approximately 0" indicates a detection value of the current sensor 3 when no current flows through the power supply line 2. For example, when the detection value of the current sensor 3 is equal to or smaller than a predetermined threshold, the processing device 20 determines that the detection value of the current sensor 3 is substantially zero. The predetermined threshold value is, for example, an appropriate value corresponding to the maximum value (allowable error) that can be detected by the current sensor 3 when no current flows through the power supply line 2. If the detection value of the current sensor 3 is substantially 0, the processing device 20 detects the completion of charging of the information terminal 40, and proceeds to step S6. On the other hand, when the detection value of the current sensor 3 is not substantially 0, the process of the current cycle is terminated.

  In step S6, the processing device 20 resets the discharging flag to "0".

  In step S7, the processing device 20 outputs the predetermined information to the multi-information display 12 of the meter 10, and sets a predetermined information output flag to "1".

  In step S8, the processing device 20 activates a timer Tm that times out at a predetermined time T1. The predetermined time T1 corresponds to a time for maintaining the output state of the predetermined information.

  In step S9, the processing device 20 determines whether the timer Tm has timed out. If the timer Tm has timed out, the process proceeds to step S10; otherwise, the process in the current cycle ends.

  In step S10, the processing device 20 stops outputting the predetermined information and resets the predetermined information output flag to “0”.

  According to the processing illustrated in FIG. 2, the predetermined information can be output when the supply of the current to the outside via the accessory socket 30 is stopped (when the detection value of the current sensor 3 becomes substantially 0). When charging of the information terminal 40 is completed, the detection value of the current sensor 3 becomes substantially zero. Therefore, according to the processing illustrated in FIG. 2, the possibility that the predetermined information is output when the charging of the information terminal 40 is completed increases.

  As described above, each embodiment has been described in detail. However, the present invention is not limited to a specific embodiment, and various modifications and changes can be made within the scope described in the claims. It is also possible to combine all or a plurality of the components of the above-described embodiment.

  In the above-described embodiment, the predetermined information may be output to another display device such as a head-up display instead of the multi-information display 12.

  In the above-described embodiment, in the case of a vehicle having a USB (Universal Serial Bus) charger, the present invention can be applied to charging via a USB charger instead of or in addition to the accessory socket 30.

DESCRIPTION OF SYMBOLS 1 Information output device 2 Power supply line 3 Current sensor 4 Power supply 5 Power switch 6 Switching element 10 Meter 12 Multi-information display 20 Processing device 30 Accessory socket 40 Information terminal 50 Charging cord

Claims (4)

And an information terminal capable accessory socket or USB charger charging, a power supply line connecting between the power supply,
A current sensor for detecting a magnitude of a current flowing through the power supply line;
When the predetermined information output flag is 0, the discharge flag is checked,
When the discharging flag is 0 and the detection value of the current sensor is larger than 0, the discharging flag is set to 1,
When the discharging flag is 1 and the detection value of the current sensor has become approximately 0 from a state greater than 0, predetermined information indicating that charging of the information terminal has been completed is output to the display device, Set the information output flag to 1, start the timer,
When the predetermined information output flag is 1, the timer is checked, and when the predetermined time is exceeded, the output of the predetermined information is stopped, and the predetermined information output flag is set to 0 .
And an information output device. The power supply line further includes a switching element between the power supply and the accessory socket or USB charger,
The processor, when detecting an overcurrent based on the current sensor, turns off the switching element,
The information output device according to claim 1. Further comprising a power switch between the switching element and the power supply,
When the power switch is on, the processing device checks the predetermined information output flag.
  The information output device according to claim 2.   The power supply line includes a power switch, a switching element, and the current sensor in the order close to the power supply, between the power supply and the accessory socket or the USB charger,
The current sensor measures a current flowing to the accessory socket or the USB charger via the switching element,
The processing device is connected to be capable of acquiring the current from the current sensor, is connected to be able to control the switching element, and outputs and outputs the predetermined information to the display device based on the current acquired by the current sensor. Controlling the stop;
The information output device according to claim 1.

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