JP2003267164A - On-vehicle electric power saving device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide flexibility when selecting on-vehicle electrical equipment and controlling power supply and to reduce load of on-vehicle power supply devices including an on-vehicle battery and an on-vehicle generator for supplying power. <P>SOLUTION: In a low power consumption mode, either one of an economy mode or a manual mode can be selected. In the manual mode, the setting of low power consumption starting speed to be one of deciding conditions as to whether or not the low power consumption mode is started can be flexibly set to speed according to the desire of a user. The rate to lower power consumption of power consumed in on-vehicle electrical devices 7 including a headlight, a room air conditioner, a power window, a wiper, lighting within a cabin and lighting of various kinds of meters is minutely and flexibly controlled. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle power saving apparatus and an on-vehicle power saving apparatus for reducing the load on an on-vehicle power supply apparatus including an on-vehicle battery for supplying electric power to on-vehicle electrical equipment and an on-vehicle generator. It relates to the method of conversion.

[0002]

2. Description of the Related Art Conventionally, as an in-vehicle power saving device for preventing useless power consumption in a vehicle, a vehicle-mounted electric device which does not need to be operated when the vehicle is stopped or running at a low speed which is lower than a set speed, A technique is known in which power supply is turned on or off based on the detected vehicle speed. Such a technique is specifically disclosed in JP-A-7-257296,
JP-A-9-311043 and JP-A-11-6568.
It is disclosed in Japanese Patent Publication No. 3 or the like, or is known as a technique of automatically turning off the headlights of a car when the car is stopped and turning it on again when the car starts running and exceeds a certain speed. The technique disclosed in Japanese Patent Laid-Open No. 7-257296 discloses that power is supplied to a vehicle-mounted electric device that does not need to be operated when the vehicle is stopped or running at a low speed lower than a set speed, by controlling a switch based on the detected vehicle speed. When the vehicle speed exceeds a certain speed, the switch is controlled to start power supply. In addition, JP-A-9-311
The technology disclosed in Japanese Patent No. 043 is a navigation device capable of preventing unnecessary current consumption, extending battery life, and reducing overall current consumption. The current supply to a part of the circuit of the device is controlled by making a determination and monitoring the captured state of the GPS satellite. Further, the technique disclosed in Japanese Patent Laid-Open No. 11-65683 is provided with a plurality of power supply systems, and switches the power supply systems according to the operating state of the device to shift to the power saving mode of the device. .

[0003]

Since the conventional in-vehicle power saving device is configured as described above, the in-vehicle electrical equipment whose power supply is controlled is decided in advance at the time of manufacture and selected by the user. In addition, the control mode of power supply is either "supply" or "interruption" or switching of the power level output from each power supply system, and the in-vehicle electrical equipment and the power supply controlled The control form of power supply is fixed,
There was a problem of lacking flexibility.

The present invention has been made to solve the above-mentioned problems, and has flexibility in selection of in-vehicle electrical equipment and control of power supply, and an in-vehicle battery or an in-vehicle generator that supplies electric power. It is an object of the present invention to obtain an in-vehicle power saving device capable of reducing the load of the in-vehicle power supply device including the.

[0005]

The on-vehicle power saving apparatus according to the present invention comprises a power consumption determining means for determining the reduction of the power consumption of the on-vehicle electrical equipment according to the vehicle information acquired by the vehicle information acquiring means. A control means for controlling the power consumption of the vehicle-mounted electric device to be equal to or less than a set predetermined amount according to the determination result of the power consumption determination means.

The in-vehicle power saving device according to the present invention has a low power consumption mode, and when the low power consumption mode is entered, the control means controls the power consumption of the in-vehicle electrical device to be equal to or less than the set predetermined amount. It is something that is done.

The vehicle-mounted power saving device according to the present invention, when the vehicle speed falls below a predetermined speed in the low power consumption mode,
The control means is configured to control the power consumption of the vehicle-mounted electric device to be equal to or less than the set predetermined amount.

In the in-vehicle power saving apparatus according to the present invention, the power consumption determining means determines the reduction of the power consumption of the lighting equipment according to the vehicle information including the lighting state of the lighting equipment acquired by the vehicle information acquiring means. Then, the control unit controls the power consumption of the lighting device to be equal to or less than the set predetermined amount according to the determination result of the power consumption determination unit.

In the in-vehicle power saving device according to the present invention, the power consumption determining means determines the reduction of the power consumption of the headlight according to the vehicle information including the lighting state of the headlight acquired by the vehicle information acquiring means. The power consumption of the headlight is reduced or turned off by the control means according to the determination result of the power consumption determination means, and the power consumption of the headlight is controlled to be equal to or less than the set predetermined amount.

In the on-vehicle power saving apparatus according to the present invention, the power consumption determining means determines the reduction of the power consumption of the wiper in accordance with the vehicle information including the wiper operation state acquired by the vehicle information acquiring means. The control means reduces or stops the driving speed of the wiper according to the determination result of the power consumption determining means, and controls the power consumption of the wiper to be equal to or less than a set predetermined amount.

In the on-vehicle power saving apparatus according to the present invention, the power consumption determining means determines the reduction of the power consumption of the air conditioning equipment in accordance with the vehicle information including the operation state of the air conditioning equipment acquired by the vehicle information acquiring means. Then, the control means reduces or stops the air flow rate of the air conditioner according to the determination result of the power consumption determining means, and controls the power consumption of the air conditioner to be equal to or less than the set predetermined amount.

In the in-vehicle power saving apparatus according to the present invention, the power consumption determining means determines the reduction of the power consumption of the navigation device according to the vehicle information including the operation state of the navigation device acquired by the vehicle information acquiring means. The control means stops the display screen of the navigation device or the motor rotation of the drive according to the determination result of the power consumption determination means, and controls the power consumption of the navigation device to be equal to or less than a set predetermined amount. It is the one.

The on-vehicle power saving apparatus according to the present invention has the low power consumption mode of the manual mode and the economy mode, and sets the power consumption of the on-vehicle electrical equipment which does not hinder traveling due to the low power consumption. The amount is controlled to be equal to or less than the predetermined amount.

The on-vehicle power saving apparatus according to the present invention is provided with a manual mode for outputting a power consumption setting screen for manually setting the power consumption of the on-vehicle electrical equipment.

The on-vehicle power saving apparatus according to the present invention has a structure incorporated in a navigation apparatus.

In the on-vehicle power saving apparatus according to the present invention, the power consumption determining means determines whether the power consumption of the on-vehicle electrical equipment should be reduced according to the vehicle information acquired by the vehicle information acquiring means, and according to the determination result. The control means controls the power consumption of the vehicle-mounted electric device to be equal to or less than the set predetermined amount.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below. Embodiment 1. FIG. 1 is a block diagram showing the configuration of the in-vehicle power saving device according to the first embodiment. In the figure,
Reference numeral 1 indicates the state of the vehicle-mounted electric device 7 including BATT (battery power supply), ACC (accessory power supply), vehicle speed, BACK (back signal), ILL (illumination), PARKING (parking brake), ECU (engine control unit), and the like. It is a vehicle information acquisition means for taking in various vehicle information. The various vehicle information indicating the state of the on-vehicle electrical device 7 is "BATT", which is information about the terminal voltage of the battery and whether or not power is being supplied from the battery, and "ACC". Information about whether the accessory power supply is working,
“Vehicle speed” is vehicle speed information, and “BACK” is information on whether or not the vehicle is traveling backward, “IL
If it is L ", information about whether the illumination of the panel meter or the like is lit," PARKING "
If it is "ECU", it includes information about whether the vehicle is in a parking state, and if it is "ECU", information about whether the engine control unit is operating.

Reference numeral 2 designates an operation switch, an operation button, and an input means such as a remote control system and a voice recognition system. The input means 2 includes a low power consumption mode setting button described later, a mode setting button for setting the economy mode and the manual mode, and whether or not the battery voltage condition is added to the low power consumption mode start condition. An operation means for input setting is included.

3 is BATT (battery power supply), ACC
(Accessory power supply), vehicle speed, BACK (back signal),
ILL (illumination), PARKING (parking brake), ECU (engine control unit), etc. Vehicle load reduction according to various vehicle information indicating the vehicle state, such as ECU (engine control unit), and determination for reducing power consumption of vehicle-mounted electrical equipment Power determination means 4, output means for outputting display signals and audio signals to a display device using a liquid crystal display or a speaker, and 5 a display device / audio device including a liquid crystal display device, a speaker and the like.

Reference numeral 6 is a control means for controlling the power consumption of the vehicle-mounted electric equipment 7 including a headlight, a room air conditioner, a power window, a wiper, a vehicle interior lighting, and lighting of various instruments. With the control of the power consumption by the control means, the light amount of the headlight is controlled by the power control supplied to the lamp, and the light amount is suppressed or turned off. The room air conditioner is controlled so that the air volume is suppressed or reduced to zero, and the power window is controlled by the drive motor, resulting in a decrease in drive speed. Further, the wiper is controlled by the drive motor so that the cycle of intermittent operation and the drive speed are reduced or stopped. With respect to the lighting in the vehicle interior and the lighting of various instruments, the power supplied to the light emitter is controlled, resulting in the light quantity being suppressed or being turned off.

Next, the operation will be described. FIG. 2 is a flowchart showing the operation of the in-vehicle power saving apparatus according to the first embodiment, which will be described below according to this flowchart. First, it is determined whether or not the low power consumption mode is activated (step ST1). The low power consumption mode is set by, for example, a user operating a low power consumption mode setting button that is provided in advance to set the low power consumption mode. In step ST1, the low power consumption mode setting button is set. And the current vehicle speed are detected, based on whether the state of the low power consumption mode setting button and the detected current vehicle speed are lower than the low power consumption mode start speed, the low power consumption mode Whether or not to start is determined. Alternatively, even if the low power consumption mode is not set, the low power consumption mode may be automatically started when the battery voltage capacity is equal to or lower than a predetermined value. This low power consumption mode start speed is a predetermined speed in the economy mode, which will be described later, and is a speed that the user himself can set in the manual mode.

If the low power consumption mode is set by the low power consumption mode setting button and the current vehicle speed is lower than the low power consumption mode start speed, step S
At T1, it is determined to be the low power consumption mode, and the mode shifts to the low power consumption mode. As a condition for shifting to the low power consumption mode, it is possible to add a battery voltage condition by a user's operation on the operation means.

In step ST1, if the current vehicle speed is not lower than the low power consumption mode start speed, the mode is shifted to the normal mode (step ST6). In this normal mode, the rated power consumption is supplied to the vehicle-mounted electric device 7 including the headlight, room air conditioner, power window, wiper, vehicle interior lighting, lighting of various instruments, etc. as in the conventional case.

When the mode is shifted to the low power consumption mode in step ST1, it is subsequently determined whether the mode is the economy mode or the manual mode (step ST2).
To determine whether the mode is the economy mode or the manual mode, for example, the user operates a mode setting button provided in advance to set the economy mode or the manual mode. Therefore, the state of the mode setting button is determined. Do that.

In the economy mode, the low power consumption mode start speed is determined in advance by a power saving program. When the low power consumption mode is entered, the power saving program is started, and the power saving program starts the headlight and the room. Air conditioner, power window,
The burden on the vehicle-mounted battery is reduced based on vehicle information indicating the state of the vehicle including the state of the vehicle-mounted electrical device 7 such as the wiper, the vehicle interior lighting, and the lighting of various instruments. When the vehicle-mounted electric device 7 operates and consumes electric power, it is supplied to the vehicle-mounted electric device 7 including the operating headlight, room air conditioner, power window, wiper, vehicle interior lighting, lighting of various instruments, and the like. The electric power is controlled to be lower than the rated electric power consumption that can ensure the safety in running the vehicle, and the electric power consumption in the vehicle-mounted electrical device 7 is controlled (step ST3). In addition, the control state of the power supply to the vehicle-mounted electrical device 7 at this time is output from the power consumption determination unit 3 to the display device / audio device 5 via the output unit 4.

FIG. 3 is a screen view showing an example of the display screen of the display device / audio device 5 when the economy mode is set. In the drawing, 11 is a schematic structure of the displayed car and 12 is a battery. The battery load factor display section for displaying the load factor, 13 indicates the rated power consumption of 100
A low power consumption rate display unit that displays the rate of low power consumption of the power consumed by the wiper when the percentage is set to 14.
Similarly, a low power consumption rate display unit that displays the rate of low power consumption of power consumed in the power window, and 15 is low power consumption that also displays the rate of low power consumption of power consumed by headlights. The conversion rate display unit 16 is a low power consumption mode start speed display unit that displays the low power consumption mode start speed. Reference numeral 21 denotes a speaker which is a voice device of the display device / voice device 5 shown in FIG. 1. In the economy mode, the contents and warning of the low power consumption setting state of the screen display of FIG. 3 are announced by voice. It

On the other hand, when it is determined in step ST2 that the manual mode is set, the low power consumption mode start speed, which is one of the conditions for shifting to the low power consumption mode, and the vehicle-mounted electrical equipment 7 are set. How much of the power consumption is suppressed with respect to the rated power consumption (for example, in the case of a headlight, 50% when the power consumption is suppressed to 1/2 of the rated power consumption of 100%) The setting screen shown in FIG. 4 for the user to set or set the battery load factor is output. In this manual mode, it is possible to reduce the power consumption only of the vehicle-mounted electrical equipment that has no safety problem in driving the vehicle.

If the setting screen has already been input, the headlight, room air conditioner, power window, wiper, vehicle interior lighting, lighting of various instruments, etc. are included according to the various settings entered. The power consumption of the vehicle-mounted electric device 7 is reduced, and the load on the battery is reduced (step ST4). In addition, when the user re-sets by the setting screen, the user himself sets the low power consumption mode start speed, headlight, room air conditioner, power window, wiper,
The electric power consumed by the vehicle-mounted electric device 7 including the lighting in the vehicle compartment, the lighting of various instruments, and the like is reset at a ratio to the rated power consumption, for example, with the rated power consumption being 100%.

In FIG. 4, reference numeral 31 is a low power consumption mode start speed display section for displaying the low power consumption mode start speed set by the user, and reference numeral 32 is an operation for increasing the low power consumption mode start speed. An operation unit 33 is an operation unit that is operated when reducing the low power consumption mode start speed. Reference numeral 34 indicates a low power consumption rate display section that displays the rate of reduction in power consumption of the headlight when the rated power consumption is 100%, and 35 is displayed on the low power consumption rate display section 34. Further, the operating unit that is operated when increasing the power consumption reduction rate, and the operation unit that is operated when decreasing the power consumption reduction rate displayed on the power consumption reduction rate display unit 34.

Reference numeral 37 denotes a low power consumption rate display section for displaying the rate of reduction in power consumption of the wiper when the rated power consumption is 100%, and 38 denotes the low power consumption rate display section 37. An operating unit operated when increasing the displayed ratio of low power consumption, 39 is an operating unit operated when decreasing the ratio of low power consumption displayed on the low power consumption ratio display unit 37. is there. 40 is a low power consumption rate display unit that displays the rate of power consumption reduction of the power consumed by the air conditioner when the rated power consumption is 100%, and 41 is displayed on the low power consumption rate display unit 40. An operation unit that is operated when increasing the ratio of low power consumption,
An operation unit 42 is operated to reduce the power consumption reduction rate displayed on the power consumption reduction rate display unit 40. Reference numeral 43 denotes a battery load rate display section for displaying the battery load rate, 44 denotes an operation section for operating when increasing the battery load rate displayed on the battery load rate display section 43, 4
An operation unit 5 is operated when reducing the battery load rate displayed on the battery load rate display unit 43.

As described above, according to the first embodiment, either the economy mode or the manual mode can be selected in the low power consumption mode, and it is determined whether the low power consumption mode is activated in the manual mode. The low power consumption mode start speed, which is one of the conditions, can be flexibly set to a speed according to the user's request, and further, headlights, room air conditioners, power windows, wipers, vehicle interior lighting, and various instruments can be set. Give flexibility to the selection of the on-vehicle electrical equipment and the control of the power supply to reduce the power consumption, such as finely and flexibly controlling the rate of reduction of the power consumption of the on-vehicle electrical equipment 7 including lighting. It is possible to obtain an in-vehicle power saving device that can reduce the load on the in-vehicle power supply device including the in-vehicle battery and the in-vehicle generator. There is that effect.

Further, in the economy mode, the power consumption of the vehicle-mounted electrical equipment 7 is suppressed to a low level by the preset power consumption reduction rate without the user inputting the low power consumption mode start speed and the low power consumption settings. In addition, in the manual mode, the low power consumption mode start speed and the electric power consumed by the vehicle-mounted electric device 7 can be suppressed to a low level within the range where the vehicle safety can be ensured by the setting entered by the user, so that the vehicle-mounted There is an effect that an in-vehicle power saving device that can reduce the load of an in-vehicle power supply device including a battery and an in-vehicle generator is obtained.

Embodiment 2. FIG. 5 shows the first embodiment.
It is a block diagram when the vehicle-mounted power saving apparatus described in 1. is applied to a navigation device. In the figure, 50 is a navigation unit that is the core of the navigation device, and 51 is a map used to realize the function as the navigation device. 1 shows a DVD drive device or an HDD in which various data including data, a control program, and a power saving program used to realize the function of the vehicle power saving apparatus are stored. Reference numeral 52 is a monitor device such as a liquid crystal display of the navigation device, 53 is a voice output device such as a speaker for performing voice guidance, 54, 55, 56, 57 and 58 are headlights, room air conditioners, power windows, wipers, cars. It is an in-vehicle electrical equipment that includes indoor lighting, lighting of various instruments, and the like.

Reference numeral 61 denotes a microcomputer built in the navigation unit, which corresponds to the power consumption determining means 3 shown in FIG. 1 for realizing the function as the on-vehicle power saving device of the present invention. Reference numeral 62 denotes map data used for realizing the function of the navigation device read from the DVD or HD by the HDD drive device or the HDD 51, various control programs, and the function of an on-vehicle power saving device. A memory that stores the power saving program used for
Reference numeral 63 is a drive interface for reading the various data, the control program, and the power saving program from the DVD drive device or the HDD 51, and 64 is the in-vehicle power saving device via an in-vehicle bus or communication means. A vehicle interface corresponding to the vehicle information acquisition means 1 of FIG. 1 for collecting vehicle information to be realized, and 65 is a remote control interface for fetching an input signal necessary for this in-vehicle power saving device from the remote control device. It corresponds to the input means 2 shown in FIG.

Reference numeral 66 is a voice input interface for taking in a voice signal input in this on-vehicle power saving apparatus, and corresponds to the input means 2 shown in FIG. 67 is a communication interface for receiving external information from a mobile phone or the like, or taking in VICS information from FM multiplex broadcast or beacon, 68 is required to be displayed on the monitor device 52 by the in-vehicle power saving device and the navigation device. This is a video interface for outputting a certain video signal and corresponds to the output means 4 shown in FIG. Reference numeral 69 denotes a voice interface for outputting a voice signal, which needs to be voice-guided by the in-vehicle power saving device and the navigation device, to the voice output device 53, and corresponds to the output means 4 shown in FIG. 70 is each of the on-vehicle electrical equipment 54,
This is a communication interface for communicating with 55, 56, 57, 58 and sending a command from the microcomputer 61 to each of the vehicle-mounted electrical devices, and corresponds to the control means 6 shown in FIG. Reference numeral 71 is a system bus of the navigation unit 51, which is connected to the microcomputer 61, the memory 62 and the interfaces.

Next, the operation will be described. First, the vehicle interface 64 includes vehicle-mounted electrical equipment 54, 55, 56 including headlights, room air conditioners, power windows, wipers, vehicle interior lighting, and various instrument lighting.
The states of 57 and 58 are fetched as vehicle information via an in-vehicle bus (not shown), and the fetched vehicle information is further fed via the system bus 71 to the microcomputer 6
Send to 1. The microcomputer 61 also captures the operating state of the navigation device. Further, the remote control interface 65 and the voice input interface 66 take in various input information inputted by the remote control device and the operation switch, and various input information recognized from the voice signal, and the various input information fetched through the system bus 71. Is sent to the microcomputer 61.

In the microcomputer 61, whether or not the low power consumption mode is set based on the vehicle information and various input information sent via the system bus 71, and if it is set, the low power consumption mode is set. Whether the mode is economy mode setting or manual mode setting is determined, and according to the determined mode and the vehicle information,
The in-vehicle electric device 54, 55, 56, 57, 58 is controlled via the communication interface 70 and the in-vehicle bus, and a video signal and a voice signal are output to the video interface 68 and the voice interface 69 to monitor the device. An image required for this on-vehicle power saving device is displayed at 52, and a voice guidance required for the on-vehicle power saving device is given by the voice output device 53. Furthermore, the power consumption of the navigation device is controlled by fixing the display screen of the navigation device or stopping the motor rotation.

On-vehicle electrical equipment 54, 55, 56, 57, 5
The control performed for 8 is a control for realizing low power consumption although it differs depending on whether the set mode is the manual mode or the economy mode,
The description of the reduction of power consumption has been given in detail in the first embodiment, and the description thereof will be omitted.
Then, it includes a control of fixing the display screen of the navigation device or stopping the motor rotation to suppress the power consumption of the navigation device to a predetermined amount or less. Also,
According to the video signal output to the video interface 68, the monitor device 52 displays the vehicle information, the state of the on-vehicle electrical equipment, the set manual mode or economy mode, and FIG. 4 when the manual mode is set. As shown in FIG. 3 described in the first embodiment when the operation setting screen and the economy mode are set as shown.
1, a battery load factor display unit 12, low power consumption rate display units 13 and 1 of each on-vehicle electrical device, as shown in FIG.
4, 15 and low power consumption mode start speed 16 are displayed. Further, in the display of the schematic configuration 11 of the vehicle, it is possible to make it partially blink. Further, regarding the display output to the monitor device 52 and the voice guidance by the voice output device 53, it is possible for the user to set in advance whether the display on the monitor device 52 or the voice guidance by the voice output device 53 is performed. Also, the user can set from the remote control device by himself / herself the time, the time, and the time for displaying on the monitor device 52.

As described above, according to the second embodiment, a navigation device having a function as an in-vehicle power saving device can be obtained. From the function as the navigation device to the in-vehicle power saving device. Switch to or operate the function as a navigation device and the function as an in-vehicle power saving device in parallel, and for in-vehicle use such as headlights, room air conditioners, power windows, wipers, vehicle interior lighting, and various instrument lighting. Electrical equipment 5
Low power consumption of 4, 55, 56, 57, 58, and further, fixing the display screen of the navigation device or stopping the motor rotation to suppress the power consumption of the navigation device to a predetermined amount or less. The ratio can be finely and flexibly controlled, and there is an effect that the load of the vehicle-mounted power supply device including the vehicle-mounted battery and the vehicle-mounted generator can be reduced.

In particular, after shifting to the low power consumption mode, either the economy mode or the manual mode can be selected. In the economy mode, the low power consumption mode start speed,
The user can suppress the power consumption of the in-vehicle electrical equipment and the navigation device to a low level with a preset low power consumption rate without inputting the setting for low power consumption. With the contents, low power consumption mode start speed, power consumption in vehicle-mounted electrical equipment and the navigation device can be suppressed low,
There is an effect that an in-vehicle power saving device integrated with a navigation device can be obtained.

[0041]

As described above, according to the present invention, the power consumption determining means for determining the reduction of the power consumption of the vehicle-mounted electrical equipment according to the vehicle information acquired by the vehicle information acquiring means, and the power consumption determining means. The control means controls the power consumption of the vehicle-mounted electrical equipment to be equal to or less than the set predetermined amount according to the determination result of the means. There is an effect that it is possible to reduce the load on the vehicle-mounted power supply device including the vehicle-mounted battery and the vehicle-mounted generator.

According to the present invention, the low power consumption mode is provided, and when the low power consumption mode is entered, the control means controls the power consumption of the vehicle-mounted electrical equipment to be equal to or less than the set predetermined amount. By shifting to the low power consumption mode, it is possible to reduce the load on the vehicle-mounted power supply apparatus including the vehicle-mounted battery and the vehicle-mounted generator that supply power to the vehicle-mounted electrical equipment.

According to the present invention, when the vehicle speed becomes lower than the predetermined speed in the low power consumption mode, the control means controls the electric power consumption of the vehicle-mounted electric device to be equal to or less than the set predetermined amount. When the vehicle speed cannot be expected, there is an effect that the power consumption of the vehicle-mounted electric device is controlled to be equal to or less than the set predetermined amount, and the load of the vehicle-mounted power supply device including the vehicle-mounted battery and the vehicle-mounted generator can be reduced.

According to the present invention, according to the vehicle information including the lighting state of the lighting equipment acquired by the vehicle information acquisition means, the power consumption determination means makes a determination as to the reduction of the current consumption of the lighting equipment, and the power consumption determination is made. Since the control means is configured to control the power consumption of the lighting device to be equal to or less than the set predetermined amount according to the determination result of the means, the power supplied to the lighting device is suppressed when the lighting device is turned on. Then
This has the effect of reducing the load on the vehicle-mounted power supply device that includes the vehicle-mounted battery that supplies power and the vehicle-mounted generator.

According to the present invention, according to the vehicle information including the lighting state of the headlight acquired by the vehicle information acquisition means,
The power consumption determination means makes a determination as to the reduction of the power consumption of the headlight, and the control means reduces or turns off the light amount of the headlight according to the determination result of the power consumption determination means, and sets the power consumption of the headlight. Since it is configured to control to below the predetermined amount, the power supplied to the headlight when the headlight is turned on is suppressed, and the vehicle is equipped with an onboard battery or an onboard generator that supplies the power. This has the effect of reducing the load on the power supply apparatus for use.

According to the present invention, the power consumption determining means makes a determination on the reduction of the power consumption of the wiper according to the vehicle information including the operation state of the wiper acquired by the vehicle information acquiring means, and the power consumption determining means Since the control means reduces or stops the drive speed of the wiper according to the determination result and controls the power consumption of the wiper to be equal to or less than the set predetermined amount, the wiper is operated when the wiper is operating. There is an effect that power supplied to the vehicle can be suppressed and the load of the vehicle-mounted power supply device including the vehicle-mounted battery and the vehicle-mounted generator that supplies the power can be reduced.

According to the present invention, the power consumption determining means makes a determination as to the reduction of the power consumption of the air conditioning equipment according to the vehicle information including the operating state of the air conditioning equipment acquired by the vehicle information acquiring means, and the power consumption determination is made. When the air conditioning equipment is operating, the control means reduces or stops the air flow of the air conditioning equipment according to the determination result of the means, and controls the power consumption of the air conditioning equipment to be equal to or less than a set predetermined amount. In addition, there is an effect that the electric power supplied to the air conditioner is suppressed and the load of the on-vehicle power supply device including the on-vehicle battery and the on-vehicle generator that supplies the power is reduced.

According to the present invention, the power consumption determining means makes a determination on the reduction of the power consumption of the navigation device according to the vehicle information including the operation state of the navigation device acquired by the vehicle information acquiring means, and the power consumption determination is made. According to the determination result of the means, the control means is configured to fix the display screen of the navigation device or stop the motor rotation of the drive to control the power consumption of the navigation device to be equal to or less than the set predetermined amount. When the vehicle is operating, the power supplied to the navigation device is suppressed, and the load on the vehicle power supply device including the vehicle battery and the vehicle generator that supplies the power can be reduced.

According to the present invention, the low power consumption mode has the manual mode and the economy mode,
The on-board electrical equipment that does not hinder driving due to low power consumption is configured to control its power consumption below a preset amount, so in the manual mode, safety is ensured even while driving. In the state
There is an effect that it is possible to flexibly reduce the load of the in-vehicle power supply device in selecting the in-vehicle electrical equipment whose power supply is controlled and in controlling the power supply.

According to this invention, since the manual mode for outputting the power consumption setting screen for manually setting the power consumption in the on-vehicle electric equipment is provided, in the manual mode, the user can display the power consumption setting screen. When the vehicle is operated and safety is ensured for traveling, there is an effect that it is possible to flexibly reduce the load of the vehicle-mounted power supply device in selecting the vehicle-mounted electrical equipment whose power supply is controlled and controlling the power supply.

According to the present invention, since it is built in the navigation device, it is possible to easily add a function as an on-vehicle power saving device to the navigation device, and to install it on an in-vehicle battery including an on-vehicle battery and an on-vehicle generator. This has the effect of reducing the load on the power supply device.

According to the present invention, the power consumption determining means determines whether to reduce the power consumption of the on-vehicle electrical equipment in accordance with the vehicle information acquired by the vehicle information acquiring means, and the control means operates in accordance with the determination result. Since it is configured to control the power consumption of the vehicle-mounted electrical equipment to be equal to or less than the set predetermined amount, it is possible to appropriately control the power supply to the vehicle-mounted electrical equipment and reduce the load of the vehicle-mounted power supply apparatus.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an in-vehicle power saving device according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the vehicle-mounted power saving device according to the first embodiment of the present invention.

FIG. 3 is a screen view showing an example displayed and output on a display when the economy mode is set in the in-vehicle power saving device according to the first embodiment of the present invention.

FIG. 4 is a screen diagram showing an example of display output on a display when a manual mode is set in the vehicle-mounted power saving apparatus according to the first embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration when a vehicle-mounted power saving device according to a second embodiment of the present invention is applied to a navigation device.

[Explanation of symbols]

1 vehicle information acquisition means, 3 power consumption determination means, 6 control means, 7, 54, 55, 56, 57, 58 vehicle-mounted electrical equipment, 50 navigation unit, 61 microcomputer (power consumption determination means), 64 vehicle interface (vehicle Information acquisition means), 70 Communication interface (control means).

Claims (12)

[Claims] 1. A vehicle-saving device comprising: vehicle-information acquiring means for acquiring vehicle information; power-consumption determining means for determining power consumption of an in-vehicle electrical device; and control means for controlling power consumption of the in-vehicle electrical device. In the electrification device, the power consumption determination unit determines whether to reduce the power consumption of the vehicle-mounted electrical device according to the vehicle information acquired by the vehicle information acquisition unit, and the control unit determines the power consumption determination unit. The in-vehicle power saving device is characterized by controlling the power consumption of the in-vehicle electric device to be equal to or less than a set predetermined amount according to the determination result of (1). 2. A low power consumption mode is provided, and the control means is
The in-vehicle power saving device according to claim 1, wherein when the mode is shifted to the low power consumption mode, the power consumption of the in-vehicle electric device is controlled to be equal to or less than a set predetermined amount. 3. The vehicle-mounted system according to claim 2, wherein the control means controls the power consumption of the vehicle-mounted electric device to be equal to or less than a set predetermined amount when the vehicle speed falls below a predetermined speed in the low power consumption mode. Power saving device for home. 4. The power consumption determining means determines a reduction in power consumption of the lighting equipment according to the vehicle information including the lighting state of the lighting equipment acquired by the vehicle information acquiring means, and the control means controls the consumption power. The in-vehicle energy-saving device according to any one of claims 1 to 3, wherein the power consumption of the lighting device is controlled to be equal to or less than a set predetermined amount according to the determination result of the power determination means. Power equipment. 5. The power consumption determination means makes a determination as to the reduction of the power consumption of the headlight according to the vehicle information including the lighting state of the headlight acquired by the vehicle information acquisition means, and the control means makes the consumption information. The light amount of the headlight is reduced or turned off according to the determination result of the power determination means, and the power consumption of the headlight is controlled to be equal to or less than a set predetermined amount. The in-vehicle power saving device according to any one of the above. 6. The power consumption determination means makes a determination on the reduction of the power consumption of the wiper according to the vehicle information including the operation state of the wiper acquired by the vehicle information acquisition means, and the control means makes the power consumption determination. The drive speed of the wiper is reduced or stopped according to the determination result of the means, and the power consumption of the wiper is controlled to be equal to or less than a set predetermined amount. The in-vehicle power saving device according to any one of claims 1. 7. The power consumption determination means makes a determination as to the reduction of the power consumption of the air conditioning equipment according to the vehicle information including the operating state of the air conditioning equipment acquired by the vehicle information acquisition means, and the control means makes the consumption information. The air flow rate of the air conditioner is reduced or stopped according to the determination result of the power determining means, and the power consumption of the air conditioner is controlled to be equal to or less than a set predetermined amount. The in-vehicle power saving device according to any one of the above. 8. The power consumption determination means determines a reduction in power consumption of the navigation device according to the vehicle information including the operation state of the navigation device acquired by the vehicle information acquisition means, and the control means controls the consumption power. The power consumption of the navigation device is controlled to be equal to or less than a set predetermined amount according to the determination result of the power determination means, by fixing the display screen of the navigation device or stopping the motor rotation of the drive. The in-vehicle power saving device according to any one of claims 1 to 3. 9. The low power consumption mode has a manual mode and an economy mode, and controls the power consumption of an in-vehicle electric device that does not hinder traveling due to low power consumption to a set predetermined amount or less. The in-vehicle power saving device according to any one of claims 2 to 8. 10. The on-vehicle power saving apparatus according to claim 9, further comprising a manual mode for outputting a power consumption setting screen for manually setting the power consumption of the on-vehicle electrical equipment. 11. The in-vehicle power saving device according to claim 1, which is built in a navigation device. 12. An in-vehicle power saving method for controlling the power consumption of an on-vehicle electrical device, wherein the power consumption determining means determines whether to reduce the power consumption of the on-vehicle electrical device according to the vehicle information acquired by the vehicle information acquiring means. And the control means controls the power consumption of the on-vehicle electrical equipment to be equal to or less than a set predetermined amount according to the determination result.