JP2013100050A - Electronic equipment control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow an occupant to use electronic equipment mounted on a vehicle immediately after getting in the vehicle.SOLUTION: When detecting that an entrance is opened while an engine of a vehicle is stopped, an electronic equipment control system 100 turns on electronic equipment 111 mounted on the vehicle and requiring a predetermined time or longer for turning on an operation screen part. Only when a battery voltage value is equal to or larger than a predetermined value, the electronic equipment 111 is turned on. If the electronic equipment 111 is divided into a body part 111a and the operation screen part 111b, when the entrance is opened, only the body part 111a is turned on. The operation screen part 111b may be turned on after detecting that the occupant has gotten in the vehicle.

Description

  The present invention relates to an electronic device control apparatus that controls power-on and lighting activation of an electronic device mounted on a vehicle.

  Conventionally, an electronic device mounted on a vehicle is turned on in conjunction with an engine key operation or an engine start switch operation (hereinafter referred to as “key operation” in combination) of the vehicle (for example, Patent Document 1 below) reference). For example, in the case of a vehicle using a key cylinder, generally, when a key inserted into a key cylinder of a vehicle that is stopped is moved to an ACC (accessory power source) position, power is supplied to each electronic device. Each electronic device is activated.

  In addition, a technique is known in which the power of an electronic device is turned on in conjunction with opening and closing of a door instead of a key operation (see, for example, Patent Document 2 below). A general vehicle is also equipped with a function of lighting a room lamp or the like by detecting the opening of a door to greet a passenger.

JP 2011-016507 A JP 2009-174191 A

  However, in the above-described conventional technology, an electronic device that requires a long time from the start of power supply to the start-up of the operation screen display unit can be used immediately after the passenger gets on (after the key operation). However, there is a problem that the convenience of the passenger is reduced. In the above-described prior art, for example, priority is given to the power supply to the cell motor when the engine is started. Therefore, the power supply to the electronic device that is lit and activated by the accessory power supply is momentarily cut off, and the settings that have been made so far are lost. There is a problem that the output from the electronic device may stop and give the passenger a sense of incongruity.

  The present invention has been made in view of the above-described problems of the prior art, and it is an object of the present invention to improve the convenience of passengers by allowing an electronic device mounted on a vehicle to be used immediately after the passenger gets on the vehicle. And

  In order to solve the above-described problems and achieve the object, an electronic device control apparatus according to the present invention includes a power-on means for powering on a plurality of electronic devices having an operation screen unit mounted on a vehicle, An electronic device comprising: an activation unit that turns on and activates the operation screen portion later; an open / close detection unit that detects opening / closing of a boarding opening of the vehicle; and a boarding detection unit that detects whether or not an occupant is on the vehicle. A device control device, wherein the power-on means is a specification that requires a predetermined time until the operation screen is turned on after the power is turned on among the plurality of electronic devices when the opening / closing detection means detects the opening of the entrance / exit The electronic device is powered on in advance, and the start-up means turns on and activates the operation screen portion of the electronic apparatus after the boarding detection means detects that the passenger has boarded the vehicle. .

According to the first aspect of the present invention, when the opening of the vehicle entrance is detected, a specific electronic device having a time required for starting the operation screen portion to be turned on is turned on and activated. The operation can be performed by the operation screen unit, and the convenience of the passenger can be improved. According to the first aspect of the present invention, since the operation screen is turned on after the occupant gets on the vehicle, the occupant has the impression that a specific electronic device is lit due to the occupant's getting on. Can be given. Further, since the operation screen unit is not turned on until it is actually used, the power consumption of the operation screen portion can be reduced.
Further, since the operation screen portion is not lit and activated when no occupant is in the vehicle, the operating status of the electronic device or the operating status of the vehicle is not visually recognized from the outside of the vehicle, and vehicle theft, mischief against the vehicle, and the like can be prevented.

  According to the invention of claim 2, since the power supply of the specific electronic device is turned on only when the voltage value of the battery is equal to or higher than the predetermined value, the specific electronic device is turned on and started before the vehicle driving system is turned on. It is possible to prevent the battery from rising.

  According to the third aspect of the present invention, after the specific electronic device is turned on and activated, the specific electronic device is turned off when no passenger is detected for a predetermined time or longer. When it is opened, useless power consumption can be suppressed.

  According to the fourth and fifth aspects of the present invention, since the operation screen and other electronic devices are turned on after the authentication by the key authenticating means is established, the vehicle is prevented from being stolen and the safety is improved. Can do.

  According to the invention of claim 6, since power is supplied to the specific electronic device via the DC-DC converter, the power supply is not interrupted even when the engine is started, and the specific electronic device can be used. Can continue.

It is a block diagram which shows the structure of the electronic device control system 100 concerning embodiment. It is a block diagram which shows the functional structure of vehicle body ECU140. 5 is a flowchart illustrating a procedure of electronic device control processing by the electronic device control system 100.

  Exemplary embodiments of an electronic device control apparatus according to the present invention will be explained below in detail with reference to the accompanying drawings.

(Embodiment)
FIG. 1 is a block diagram illustrating a configuration of an electronic device control system 100 according to the embodiment. In the present embodiment, a gasoline vehicle using gasoline as a power source and an engine key type vehicle in which a key is inserted into a key cylinder and the engine is started will be described as an example. The electronic device control system 100 according to the embodiment includes a battery 110, a specific electronic device 111, a constantly powered electronic device 112, a normal electronic device 113, an engine 120, an alternator 121, a door switch 131, a key cylinder 132, and a boarding detection device 133. The engine ECU 134 and the vehicle body ECU 140 are configured.

  The electronic device control system 100 controls lighting activation of a plurality of electronic devices mounted on the vehicle. The electronic devices mounted on the vehicle are a specific electronic device 111, a constantly powered electronic device 112, and a normal electronic device 113. These electronic devices operate using power stored in the battery 110 as a power source. The battery 110 stores electric power generated by the alternator 121 when the engine 120 is in operation.

  Among the electronic devices mounted on the vehicle, the specific electronic device 111 is an electronic device that requires a predetermined time or more for lighting activation, and specifically includes, for example, a car navigation device and a personal computer. The specific electronic device 111 is operated from a recording medium such as a hard disk drive after the power is turned on until the display unit (operation screen unit 111b) displays information related to the operation of the electronic device or vehicle information. It takes time to read information such as system software and application software and perform information processing. Accordingly, since the electronic device 111 takes time to activate the display unit, when the engine key is moved to the ACC position and starts to activate after the engine key is moved to the ACC position, the occupant is displayed on the operation screen displayed on the display unit. Takes time to start the operation. For this reason, in the electronic device control system 100, the specific electronic device 111 is turned on and activated as soon as the opening of the vehicle entrance / exit is detected. Thereby, a passenger | crew can use the specific electronic device 111 immediately after boarding, and a passenger | crew's convenience can be improved.

  In the present embodiment, the specific electronic device 111 is a navigation device. The navigation device can be broadly divided into a main body 111a and a display (operation screen 111b), and the lighting of the main body, power-on, and operation screen can be controlled separately. In general, the main body 111a of the navigation device is installed at a position that is not visible to the occupant, and the occupant only visually recognizes the display unit that is the operation screen unit 111b.

  The specific electronic device 111 is connected to the battery 110 via the DC-DC converter 115. The DC-DC converter 115 rectifies the electric voltage supplied from the battery 110. Through the DC-DC converter 115, power is stably supplied from the battery 110 to the specific electronic device 111. More specifically, normally, the power from the battery 110 is temporarily cut off when the engine 120 is ignited. However, the power supply to the specific electronic device 111 is performed via the DC-DC converter 115. It will not be cut off even during ignition. Thus, for example, the specific electronic device 111 can be comfortably operated without interrupting the start-up process of the specific electronic device 111 due to an instantaneous power interruption or erasing the contents of the setting input to the specific electronic device 111. Can be used for

  The constantly powered electronic device 112 is an electronic device to which power from the battery 110 is always supplied even when the vehicle engine 120 is stopped. Specific examples of the constantly powered electronic device 112 include an audio internal memory, a clock, a keyless operation system, and the like.

  The normal electronic device 113 is an electronic device other than the specific electronic device 111 and the always-on power electronic device 112, and specifically includes, for example, a car audio, a wiper, a power window, and a blower fan. Usually, the electronic device 113 is operated by an accessory power supply (ACC). Normally, the accessory power supply is supplied with power from the battery 110 when the engine key inserted into the key cylinder 132 is moved to the ACC position. On the other hand, in the present embodiment, the electronic device 113 is not turned on in conjunction with the key operation, but is detected by the passenger detection means for detecting whether the passenger is in the vehicle. If it is, the power is turned on.

  The door switch 131 is provided at each door (entrance / exit) of the vehicle and detects opening / closing of each door. Moreover, the door switch 131 outputs the detection result of opening / closing of the door to the vehicle body ECU 140 as an opening / closing detection signal.

  Key cylinder 132 is provided in the driver's seat, and an engine key is inserted for ignition of engine 120. In the key cylinder 132, an engine key can be rotated, and the operating state of the vehicle can be controlled by the position.

  In the present embodiment, it is assumed that key authentication for authenticating whether or not the engine key used by the passenger is a valid key is performed. There are various methods for key authentication. In this embodiment, an electronic chip in which ID information is written is embedded in the engine key, ID information is read from the engine key inserted in the key cylinder 132, and a valid ID is obtained. Authentication shall be performed by collating with information. For this reason, the key cylinder 132 is provided with a mechanism that reads ID information from a chip embedded in the inserted key and outputs the read ID information to the vehicle body ECU 140.

  The boarding detection device 133 is an occupant detection device for a seat belt reminder. For example, various sensors such as a weight sensor and an ultrasonic sensor mounted in the seat can be used. The boarding detection device 133 outputs the detected information on the presence or absence of a passenger to the vehicle body ECU 140 as a signal.

The vehicle body ECU 140 includes a CPU, a ROM that stores and stores a control program, a RAM as an operation area of the control program, an EEPROM that holds various data in a rewritable manner, an interface unit that interfaces with peripheral circuits, and the like. Is done.
The vehicle body ECU 140 is connected to the battery 110, the specific electronic device 111, the constantly powered electronic device 112, the normal electronic device 113, the engine 120, the alternator 121, the door switch 131, the key cylinder 132, the boarding detection device 133, the engine ECU 134 and the interface unit. Connected to each other, exchange information with each unit, and control each unit.

  Further, the vehicle body ECU 140 executes the control program by the CPU, whereby the open / close detection means 211, the voltage value acquisition means 212, the boarding detection means 213, the key authentication means 214, the power-on means 215, and the activation means shown in FIG. 216, the power shut-off means 217 is realized.

  FIG. 2 is a block diagram showing a functional configuration of the vehicle body ECU 140. The opening / closing detection means 211 detects opening / closing of the entrance of the vehicle. More specifically, the open / close detection means 211 detects the open / close state of the vehicle entrance using the open / close detection signal from the door switch 131. The entrance for detecting opening / closing by the opening / closing detection means 211 may be only the driver's seat, or may include a passenger seat or a passenger seat for the rear seat.

  The voltage value acquisition unit 212 acquires voltage value information of the battery 110 that supplies power to an electronic device mounted on the vehicle. More specifically, the voltage value acquisition unit 212 acquires voltage value information of the battery 110 from a voltmeter or the like installed in the battery 110.

  The boarding detection unit 213 detects boarding of a passenger on the vehicle. More specifically, the boarding detection means 213 detects the presence or absence of a passenger on the vehicle using the passenger information signal from the boarding detection device 133.

  The key authentication means 214 authenticates whether or not the key (engine key) for starting the vehicle engine is a valid key. More specifically, the key authenticating unit 214 obtains ID information read from the engine key inserted into the key cylinder 132, and verifies it with the ID information of a valid engine key, thereby authenticating the engine key. Do it.

  The power-on means 215 turns on power to a predetermined electronic device based on the detection result by the open / close detection means 211. Specifically, the power-on unit 215 powers on the specific electronic device 111 by supplying power via the DC-DC converter 115.

  When the opening of the entrance / exit is detected when the engine of the vehicle is stopped, the power-on means 215 is a specific electronic device 111 in which the time required for the operation screen unit to be turned on among electronic devices mounted on the vehicle is longer than a predetermined time. Turn on the power. More specifically, the power-on means 215 detects the opening of the boarding opening by the opening / closing detection means 211 when the engine of the vehicle is stopped, that is, when all electronic devices other than the constantly powered electronic device 112 are in the off state. If this happens, the specific electronic device 111 is powered on. It should be noted that powering on a specific electronic device 111 may be performed only when the opening of a specific boarding gate (for example, a driver's seat) is detected.

  The power-on means 215 may turn on a specific electronic device only when the voltage value of the battery 110 acquired by the voltage value acquisition means 212 is a predetermined value or more. This is to ensure a voltage value required at the time of engine ignition.

  In addition, when the specific electronic device 111 has an operation screen unit 111b that can be turned on and activated separately from the main body unit 111a, the activation unit 216 detects that an occupant has entered the vehicle by the boarding detection unit 213. Later, the operation screen unit 111b is turned on. Specifically, when the specific electronic device 111 is a navigation device, when the opening of the entrance / exit is detected, only the main body 111a is turned on, and the display unit is turned on after the passenger is detected. Like that. This is because, in the navigation device, since only the display unit that is the operation screen unit 111b is visually recognized by the occupant, the occupant often recognizes that the navigation device is turned on when the display unit is turned on. This is because it is considered. By illuminating and activating the display unit corresponding to the occupant's boarding, it is possible to produce an effect as if the vehicle (or electronic device) welcomes the occupant.

  The power-on means 215 also activates or activates the operation screen portion of the specific electronic device 111 when the boarding detection means 213 detects that the occupant has entered the vehicle and the key authentication means 214 is authenticated. You may make it power on electronic devices other than this electronic device. By performing key authentication, it is possible to detect boarding using an unauthorized key and improve safety.

  The power shut-off means 217 turns on the specific electronic device 111 that has been turned on when the boarding detection means 213 does not detect the occupant's boarding for a predetermined time or more after the power-on means 215 turns on the power to the specific electronic device 111. Turn off the power. This is based on the assumption that the boarding gate is not opened (for example, when the occupant opens the door to remove forgotten items). In such a case, it is specified to reduce the power consumption of the battery 110. The electronic device 111 is turned off.

  FIG. 3 is a flowchart showing a procedure of electronic device control processing by the electronic device control system 100. In the flowchart of FIG. 4, the electronic device control system 100 first waits until the opening / closing detection unit 211 detects the opening of the vehicle entrance / exit (step S301: No loop). When the opening of the entrance / exit is detected (step S301: Yes), the electronic device control system 100 turns on the DC-DC converter 115 and the boarding detection device 133 (step S302).

  Next, the electronic device control system 100 acquires the voltage value (battery voltage) of the battery 110 by the voltage value acquisition unit 212, and determines whether or not the battery voltage is equal to or higher than a predetermined value (step S303). The predetermined value is, for example, a value that sufficiently secures a battery voltage required at the time of engine ignition. When the battery voltage is equal to or higher than the predetermined value (step S303: Yes), the electronic device control system 100 turns on the power of the specific electronic device 111 (here, the main body 111a of the navigation device) by the power-on unit 215 (step S304). ). On the other hand, if the battery voltage is less than the predetermined value (step S303: No), the DC-DC converter 115 and the boarding detection device 133 that were turned on in step S302 are turned off (step S305), and this flowchart is executed. The process ends. Thus, when the voltage value of the battery 110 is low, for example, the electronic device is turned on and activated by operating the engine key of the vehicle as in a general vehicle.

  When the specific electronic device 111 is turned on in step S304, the electronic device control system 100 determines whether or not an occupant is detected within a predetermined time after the specific electronic device 111 is turned on (step S306). . If an occupant is detected (step S306: Yes), engine key ID information is obtained from the key cylinder 132, and the key authentication means 214 performs key authentication for the engine key (step S307). On the other hand, when an occupant is not detected within a predetermined time (step S306: No), the process proceeds to step S313. The case where the passenger is not detected within a predetermined time is, for example, when the passenger returns to the vehicle to pick up a forgotten item or returns to the vehicle with a baggage for shopping, but the boarding door is opened but the passenger has not boarded And so on.

When the key authentication is established in step S307 (step S308: Yes), the power-on unit 215 turns on the operation screen unit 111b (display of the navigation device) of the specific electronic device 111 and turns on the power of the normal electronic device 113. (Step S309). As a result, the key authentication is established and all the electronic devices can be used, so that it is possible to produce an effect as if all the electronic devices are lit and activated together with the passenger.
On the other hand, when the key authentication is not established (step S308: No), the fact that the authentication is not established is displayed (step S310). At this time, for example, a notification sound may be output from a speaker or the like installed inside or outside the vehicle to notify the injustice, or the ignition operation may be disabled to prevent the vehicle from being stolen.

  Subsequently, in step S309, the electronic device control system 100 determines whether or not an ignition operation has been performed within a predetermined time after the lighting operation of the operation screen of the specific electronic device is turned on and the normal electronic device 113 is powered on ( Step S311). When the ignition operation is performed within the predetermined time (step S311: Yes), the engine 120 is started by the engine ECU 134 (step S312), and the processing according to this flowchart is ended.

  On the other hand, when there is no ignition operation within a predetermined time (step S311: No), the power of the electronic device turned on is turned off by the power shut-off means (not shown separately) (step S313), and the processing according to this flowchart is performed. finish. This is because the battery may run out if power is supplied to the electronic device for a long time without starting the engine. Further, even within the predetermined time, when the door is locked from the outside of the vehicle, the same processing as step S313 is performed. Note that the predetermined time in step S311 may be determined based on the battery voltage value acquired in step S303. In other words, even when various electronic devices are powered on in a state where the engine 120 is not in operation, the predetermined time may be a time that can secure a battery voltage that does not cause battery exhaustion.

  As described above, when the electronic device control system 100 according to the embodiment detects the opening of the vehicle entrance, the electronic device control system 100 powers on the specific electronic device 111 that takes a long time to start lighting the operation screen unit. Therefore, the specific electronic device 111 can be used immediately after the occupant gets on, and the convenience of the occupant can be improved. In addition, since the electronic device control system 100 powers on the specific electronic device 111 only when the voltage value of the battery 110 is equal to or higher than a predetermined value, the specific electronic device 111 is turned on and started before the engine 120 is turned on. It is possible to prevent the battery from going up that may be caused by the operation.

  In addition, the electronic device control system 100 turns off the power of the specific electronic device 111 when the passenger is not detected for a predetermined time or longer after the specific electronic device 111 is turned on. When the boarding gate is opened, wasteful power consumption can be suppressed. In addition, since the electronic device control system 100 lights up and activates the operation screen unit of the specific electronic device 111 after the occupant gets on the vehicle, is the specific electronic device 111 turned on due to the occupant getting on? An impression like this can be given to the occupant. Further, since the operation screen unit is not turned on until it is actually used, the power consumption of the operation screen portion can be reduced.

  In addition, since the electronic device control system 100 turns on and activates the operation screen unit and the normal electronic device 113 after the authentication by the key authenticating unit 214 is established, it is possible to prevent theft of the vehicle and improve safety. it can. In addition, since the electronic device control system 100 supplies power to the specific electronic device 111 via the DC-DC converter 115, the power supply is not interrupted even when the engine is started, and the specific electronic device 111 is not interrupted. Can continue to be used.

  In the present embodiment, in order to improve safety, after the key authentication is established, the operation screen unit 111b of the specific electronic device 111 is turned on and the normal electronic device 113 is turned on. However, the key authentication is performed. Instead, the lighting operation of the operation screen unit 111b of the specific electronic device 111 and the normal electronic device 113 may be turned on together with the passenger.

  In the present embodiment, the normal electronic device 113 is turned on when the operation screen unit 111b of the specific electronic device 111 is turned on. However, as in a normal vehicle, the normal electronic device 113 is turned on in conjunction with the key operation. It may be. That is, when the engine key inserted into the key cylinder 132 is moved to the position of ACC (accessory power supply), the accessory electronic power supply may be supplied to turn on the normal electronic device 113.

  Further, in the present embodiment, the engine key type vehicle that starts the engine using the engine key is described as an example, but the present invention is also applied to a push start type vehicle that starts the engine by a push button. Can be applied. In a push start type vehicle, the operating state of the vehicle is controlled by pressing a push button. The specific control differs depending on the vehicle. For example, if the engine starter switch is pressed once without stepping on the brake, power is supplied to the accessory power supply (corresponding to the case where the engine key is moved to the ACC position). When pressed, power is supplied to the engine ECU 134 (corresponding to the case where the engine key is moved to the ON position), and when pressed three times, these are turned off (corresponding to the case where the engine key is moved to the Lock position). ). When the engine starter switch is pressed once while the brake is depressed, the engine starts (corresponding to the case where the engine key is moved to the START position). When the engine key is pressed again, the engine stops (the engine key is moved to the Lock position). Equivalent to moving to A).

  A push-start type vehicle has an electronic key for authenticating that the person who gets on the vehicle is a valid occupant. The key authentication means 214 performs key authentication using this key. Other processes can be performed in the same manner as in the above-described embodiment.

  Furthermore, in the present embodiment, a gasoline vehicle using gasoline as a power source has been described as an example, but the present invention can also be applied to an electric vehicle such as an electric vehicle or a plug-in hybrid vehicle. For example, in an electric vehicle, charging is performed while the vehicle is stopped, but a charge management screen for managing a charging state or the like is generally operated using a navigation device mounted on the vehicle. Therefore, if the present invention is applied to an electric vehicle, it is possible to improve convenience without taking time to access a charge management screen or the like.

  DESCRIPTION OF SYMBOLS 100 ... Electronic device control system, 110 ... Battery, 111 ... Specific electronic device, 111a ... Main-body part, 111b ... Operation screen part, 112 ... Constant power electronic device, 113 ... Normal electronic device, 115: DC-DC converter, 120: engine, 121: alternator, 131: door switch, 132: key cylinder, 133: boarding detection device, engine ECU: 134, body ECU: 140, 211 ... Open / close detection means, 212... Voltage value acquisition means, 213 .. Boarding detection means, 214... Key authentication means, 215... Power-on means, 216.

Claims (5)

A power-on means for powering up a plurality of electronic devices having an operation screen unit mounted on the vehicle;
Starting means for lighting and starting the operation screen after power-on;
Open / close detecting means for detecting opening / closing of the entrance of the vehicle;
Boarding detection means for detecting whether or not an occupant is on the vehicle, and an electronic device control device comprising:
The power-on means is a power supply of a specific electronic device that requires a predetermined time until the operation screen is turned on after the power is turned on among the plurality of electronic devices when the opening / closing detection unit detects the opening of the entrance / exit. In advance,
The electronic device control apparatus characterized in that the activation means turns on and activates the operation screen portion of the electronic apparatus after the passenger detection means detects that an occupant is in the vehicle. Voltage value acquisition means for acquiring voltage value information of a battery that supplies power to the specific electronic device;
The electronic device control apparatus according to claim 1, wherein the power-on unit powers on the electronic device only when the voltage value is equal to or greater than a predetermined value.   A power shut-off means for shutting off the power of the electronic device when the boarding detection means does not detect the boarding of the occupant for a predetermined time after the power is turned on by the power-on means; The electronic device control device according to claim 1, wherein the electronic device control device is an electronic device control device. The vehicle further includes key authentication means,
The lighting activation means activates lighting of the operation screen section when the boarding detection means detects the occupant on the vehicle and authentication by the key authentication means is established. Item 4. The electronic device control device according to any one of Items 1 to 3. The specific electronic device is connected to the power source via a DC-DC converter,
5. The power supply unit according to claim 1, wherein the power-on unit powers on the specific electronic device by supplying power through the DC-DC converter. 6. Electronic device control device.

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