JP2003095042A - Power generation control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power generation control device capable of reducing the fuel consumption necessary for power generation. SOLUTION: The power generation control device 20 grasps a scheduled travel route of a vehicle based on navigation information transmitted from a navigation device 40, and divides the contents into three kinds of a street, a suburb and a high-way. The power control equipment 20 sets a power generation voltage so as to allow the discharge by a battery capacity which can be recharged on a suburb driving and a high-way driving wherein there is a surplus in engine torque, so that the fuel consumption of an engine is controlled to suppress on the street driving.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power generation control device for controlling a power generation voltage of a vehicle generator mounted on a passenger car, a truck or the like.

[0002]

2. Description of the Related Art In recent years, as the demand for improving the fuel consumption rate of vehicles has increased, the electric load on vehicles has increased, and it has been required to reduce the fuel consumption required for power generation. Conventional vehicle generators generate power at a constant voltage regardless of the driving conditions, or at the time of acceleration / deceleration or the like, change the generated voltage according to the driving conditions at that time to generate power.

[0003]

By the way, as described above, the conventional vehicular generator has a problem that fuel is wastefully consumed because the generated voltage is not controlled by grasping the entire traveling route. It was For example, considering the case of performing high-speed traveling after performing low-speed urban driving, charging is performed even when the vehicle is running in low-speed urban areas where the in-vehicle battery charge is low and the engine torque is low. Charging may almost end when the vehicle shifts to high speed driving after that. As described above, the conventional vehicular generator does not generate electric power so that the charging balance is satisfied on the entire traveling route in consideration of the planned traveling route, resulting in wasteful fuel consumption. It was

The present invention has been made in view of the above points, and an object thereof is to provide a power generation control device capable of reducing the fuel consumption required for power generation.

[0005]

In order to solve the above-mentioned problems, the power generation control device of the present invention controls the power generation voltage of the vehicle generator based on the contents of the planned traveling route of the vehicle. Further, the power generation control device of the present invention controls the power generation voltage of the vehicle generator in consideration of the charge / discharge balance of the on-vehicle battery calculated based on the planned traveling route. Fuel consumption efficiency can be improved by comprehensively judging the contents of the planned traveling route of the vehicle or by controlling the generator voltage in consideration of the charge / discharge balance of the on-vehicle battery calculated in advance along the planned traveling route. It is possible to suppress charging in bad driving conditions and allow discharging to increase the amount of charging in driving conditions with a good fuel consumption rate, reducing fuel consumption in the entire travel route. can do.

Further, it is desirable to include a navigation information receiving means for receiving the navigation information sent from the navigation device and a generated voltage setting means for setting the generated voltage of the vehicle generator based on the navigation information. By using the navigation information acquired from the navigation device, the planned traveling route can be accurately specified. Further, since navigation devices have become widespread these days, it is possible to obtain navigation information necessary for specifying a planned travel route for a vehicle equipped with a navigation device without adding a special configuration. .

Further, on the basis of the navigation information received by the navigation information receiving means, a traveling content determination means for at least distinguishing between the first section corresponding to the city traveling included in the planned traveling route and the other second section. In addition, the power generation voltage setting means sets the power generation voltage for suppressing the charging of the vehicle generator in the first section in consideration of the chargeable amount of the vehicle-mounted battery in the second section. Is desirable. By dividing the city section included in the planned travel route from the other sections, the charging voltage is suppressed especially in the city section where the fuel consumption efficiency is poor, and conversely, the power generation voltage that increases the charge amount in other sections is set. It becomes possible to do.

Further, the above-mentioned power generation voltage setting means predicts the electric load to be used by using at least a part of the season, region, ambient temperature and running time zone, and the power generation voltage of the power generation voltage is considered in consideration of this prediction result. It is desirable to make settings. The electric load used varies greatly depending on the season, region, ambient temperature, running time, etc. Therefore, by predicting this variation and setting the generated voltage, a battery that can be recovered in sections other than urban areas can be recovered. It is possible to calculate the capacity accurately.

Further, it is desirable that the above-mentioned power generation voltage setting means re-estimates the chargeable amount when the traffic jam information regarding the planned traveling route is sent from the navigation device, and changes the power generation voltage if necessary. . By considering the traffic congestion information, it becomes possible to more accurately calculate the recoverable battery capacity in a section other than the city section.

Further, it is desirable that the above-mentioned power generation voltage setting means changes the power generation voltage when the destination corresponding to the planned travel route is canceled or changed. As a result, it becomes possible to set the optimum power generation voltage each time the planned travel route is changed.

Further, it is preferable that the above-mentioned power generation voltage setting means monitors the battery capacity of the vehicle-mounted battery and changes the power generation voltage condition when the battery capacity deviates from a predetermined value. The cause of the battery capacity deviating from the planned value may be mainly due to the fact that the amount of electric load used is higher than planned.In such a case, changing the generation voltage to increase the amount of power generation actually It is possible to control power generation appropriately.

Further, it is desirable that various kinds of information are transmitted and received between the navigation device and the vehicle generator described above by communication. As a result, restrictions on the arrangement of the power generation control device, the navigation device, and the vehicle generator are reduced, and the degree of freedom in design can be improved.

In addition, the effect calculation / display means for calculating and displaying the fuel consumption improvement effect that appears when the power generation operation by the vehicle generator is performed according to the power generation voltage set by the above-described power generation voltage setting means. Further provision is desirable. By displaying the fuel consumption improvement effect,
A user who sees this can be prompted to use the function of the present invention.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a power generation control device of an embodiment to which the present invention is applied will be described in detail with reference to the drawings. FIG. 1 is a diagram showing an overall configuration of a power generation system including a power generation control device of this embodiment. The power generation system shown in FIG. 1 is configured to include a power generator 10, a power generation control device 20, a battery 30, and a navigation device 40 mounted on a vehicle.

The generator 10 is rotationally driven by the engine to generate charging power for the battery 30 and operating power supplied to various electric loads. FIG. 2 is a diagram showing a specific configuration of the generator 10. The generator 10 shown in FIG.
Includes an armature winding 1, a field winding 2, a full-wave rectifier 3, and a voltage controller 4. The voltage control device 4 includes an exciting current control circuit 5 and an output voltage control circuit 6.

The exciting current control circuit 5 has a power transistor 11 and a free wheeling diode 12, and the field winding 2
Controls the exciting current that flows through. Power transistor 11
Has an output terminal of the output voltage control circuit 6 connected to the base, and is turned on when the signal input from this output terminal is at a high level. At this time, the current flowing through the field winding 2 increases. The return diode 12 is the field winding 2
Is connected in parallel with the field winding 2 and is provided to recirculate the field current when the power supply to the field winding 2 is turned off.

The output voltage control circuit 6 controls ON / OFF of the power transistor 11 in the exciting current control circuit 5 or changes the adjusted voltage set value based on the signal input to the C terminal. The C terminal of the voltage control device 4 described above is connected to the power generation control device 20, and the power generation voltage command information output from the power generation control device 20 is input to the C terminal.

Further, the power generation control device 20 shown in FIG.
The battery information input from the battery 30 (specifically, the charging current of the battery 30) and the navigation device 40.
Power generation voltage command information for controlling the power generation voltage of the generator 10 is created and output based on the navigation information input from.

FIG. 3 is a diagram showing a schematic configuration of the power generation control device 20. The power generation control device 20 shown in FIG. 3 includes a power generation voltage command information transmission unit 22, a battery information reception unit 23, a navigation information reception unit 24, a traveling content determination unit 25, a clock 26, a temperature detection unit 27, a power generation voltage setting unit 28, An effect calculation unit 29 and a display unit 31 are provided.

The power generation voltage command information transmission unit 22 transmits the power generation voltage command information from the power generation control device 20 to the generator 10. The battery information receiving unit 23 receives the battery information sent from the battery 30. The navigation information receiving unit 24 receives the navigation information sent from the navigation device 40.

The traveling content determination unit 25 specifies the planned traveling route of the vehicle based on the received navigation information, determines the traveling content when traveling on the planned traveling route, and each section constituting the planned traveling route. Is divided into urban area, suburban area, and high-speed area. The clock 26 outputs the date and time of interest. Based on this output content,
The season when the vehicle is traveling and the traveling time zone in the day (for example, whether it is nighttime or not) are determined, and the operating state of the air conditioner or heater and the lighting state of headlights are estimated using the determination results. . The clock 26 may be a clock built in the navigation device 40. The temperature detection unit 27 detects the ambient temperature (for example, the temperature inside the vehicle interior or the temperature outside the vehicle). The operating states of the air conditioner and the heater are estimated based on the detection result.

The power generation voltage setting unit 28 sets a power generation voltage for controlling the power generation state of the generator 10 based on the navigation information, the battery information, etc. described above. The effect calculation unit 29 calculates the effect of improving the fuel consumption rate that occurs when the power generation control to which the present invention is applied is performed. For example, the reduction amount of the fuel consumption of the engine due to the suppression of the power generation of the generator 10 when driving in the city is calculated. The reduction amount of fuel consumption per unit distance is calculated or measured in advance for each of a plurality of power generation voltages, and by accumulating these measured values for each power generation voltage set for each planned travel route, the vehicle travels. You may make it obtain | require the approximate value of the reduction amount of the fuel consumption corresponding to the whole planned route.
The display unit 31 displays the improvement effect of the fuel consumption rate calculated by the effect calculation unit 29 together with the destination of the corresponding planned travel route. As the display unit 31, a liquid crystal display device provided in the navigation device 40, an audio device (not shown), or the like is used.

Further, the navigation device 4 shown in FIG.
0 has at least a route search function for setting an optimum travel route connecting a departure place and a destination. FIG. 4 is a diagram showing a schematic configuration of the navigation device 40. The navigation device 40 shown in FIG.
2. A destination setting unit 44, a route search processing unit 46, a route guidance processing unit 48, a VICS information receiving unit 50, and a navigation information transmitting unit 52 are provided.

The vehicle position detector 42 detects the current position of the vehicle using a GPS sensor, an autonomous navigation sensor, or the like. The destination setting unit 44 sets a destination when performing the route search process. The route search processing unit 46 sets the vehicle position at the time point when the route search process is instructed to the departure place, and sets the optimum planned travel route from the departure place to the destination. The route guidance processing unit 48 guides the vehicle along the optimal planned route set by the route search processing unit 46. For example, the planned traveling route is displayed on the map, and the guidance along the planned traveling route is performed by displaying an enlarged view of the right / left turn intersection, voice guidance, or the like.

The VICS information receiving section 50 receives road information transmitted from the VICS center. For example, this road information includes traffic jam information that specifies the degree of traffic jam and the specific range of the road subject to this traffic jam. In addition, the road information can be received by FM multiplex broadcasting, radio beacons,
Any method of optical beacon may be used.

The navigation information transmitter 52 transmits the navigation information to the power generation control device 20. The navigation information includes the destination information and the traffic jam information received by the VICS information receiving unit 50, in addition to the information for specifying the planned travel route to the destination set by the route search processing in the route search processing unit 46. include. In addition, the estimated passage time of a plurality of passage points (for example, each passing intersection) along the planned traveling route is added as additional information to the information for specifying the planned traveling route.

The navigation information receiving section 24 described above serves as navigation information receiving means, the generated voltage setting section 28 serves as the generated voltage setting means, the traveling content determination section 25 serves as the traveling content determination means, and the effect calculation section 29 and the display section 31 serve as the effect calculation section 29. Corresponds to effect calculation / display means. The charging system of this embodiment has such a configuration, and its operation will be described below.

FIG. 5 is a diagram showing the relationship between the voltage generated by the generator 10 and the charging / discharging current of the battery 30. In FIG. 5, the horizontal axis represents the generated voltage and the vertical axis represents the charging current or the discharging current. As shown in the figure, the generator 1
By adjusting the power generation voltage of 0, the charge / discharge current for the battery 30 can be set. Note that if the adjustment range of the generated voltage is set extremely wide, it may adversely affect various electric devices, so in the present embodiment, the lower limit value and the upper limit value of the adjustment range are set,
The generated voltage is controlled in this range. For example, 12 V is used as the lower limit value of the generated voltage and 14 V as the upper limit value.
V is used. Further, the relationship between the generated voltage and the charging / discharging current shown in FIG. 5 changes depending on the magnitude of the electric load, and thus it is necessary to make a correction according to the usage state of the electric load.

FIG. 6 is a diagram showing the relationship between the battery capacity and the charging current when the battery 30 is charged at a constant voltage. In FIG. 6, the horizontal axis represents the battery capacity and the vertical axis represents the charging current. As shown in the figure, when charging is performed at a constant voltage, there is a relationship between the battery capacity and the charging current that the charging current increases as the battery capacity decreases, and these correspond one-to-one. Therefore, the initial value of the battery capacity can be known by detecting the charging current under constant voltage.

FIG. 7 is a flow chart showing the operation procedure of the power generation control device 20, and shows the operation contents when the route search processing is performed in the navigation device and the first navigation information is sent. The navigation information receiving unit 24 and the battery information receiving unit 2 in the power generation control device 20
When the navigation information and the battery information are received by the communication using each of 3 (step 100),
Next, the travel content determination unit 25 determines the travel content of the planned travel route based on the planned travel route identified by the navigation information and its accompanying information (step 101). As described above, the navigation information includes this additional information together with the information for specifying the planned traveling route, so that the expected passage time of each intersection along the planned traveling route can be known. Running content determination unit 25
Calculates the vehicle speed when traveling on a travel route (link) that connects adjacent intersections based on the predicted passage time of each intersection, and the travel route is based on the calculated vehicle speed Which of the above is applicable is determined. By performing such a determination process for all planned travel routes, each section of the planned travel route is classified into any of the above-mentioned urban area section, suburb section, and high-speed section. In addition,
The above-described method of determining the travel content is an example, and for example, when the navigation information includes section information indicating whether each section of the planned travel route corresponds to an urban section, a suburban section, or a high-speed section, The section information may be used as it is.

Next, the power generation voltage setting unit 28 sets the power generation voltage based on the traveling content determined by the traveling content determination unit 25 and the battery information received by the battery information receiving unit 23 (step 102). The setting of the power generation voltage is performed in consideration of the season and the traveling time zone determined based on the output of the clock 26. For example, predict the usage frequency of air conditioners and heaters according to the season,
Whether or not the headlight is used can be determined depending on whether the traveling time zone is day or night, so that it becomes possible to roughly estimate the current value of the electric load required to operate the vehicle-mounted device. The value obtained by subtracting the estimated current value from the output current of the generator 10 that can be output during suburban traveling or high-speed traveling becomes the maximum value of the charging current that can charge the battery 30, and the next suburban traveling or high-speed traveling is performed. Battery 3 during driving
It becomes possible to predict to a certain extent how much 0 can be charged. The power generation voltage setting unit 28 pays attention to each urban section, calculates a recoverable battery capacity in the next existing suburban section or high-speed section, and permits discharging of the battery 30 by this battery capacity in the noted urban section. The generated voltage of the generator 10 is set low so that By setting the power generation voltage in this manner, it is possible to reduce the power generation torque of the power generator 10 during traveling in an urban area where the driving torque of the engine has no margin, and to suppress the fuel consumption required for power generation. On the other hand, when driving in the suburbs or at high speeds, the amount of power generation increases as much as the battery capacity decreases when driving in urban areas, so the power generation torque also increases. In addition, the rotation speed of the generator 10 is increased and the power generation can be performed with a relatively small power generation torque. Therefore, the fuel consumption required for power generation can be suppressed when viewed from the entire planned traveling route. .

When the setting of the power generation voltage is completed, the effect calculation unit 29 calculates the improvement effect of the fuel consumption rate based on the power generation voltage set corresponding to each section of the planned travel route, and improves it together with the destination. The reduction amount of the consumed fuel due to the effect is displayed on the display unit 31 (step 103). In general usage of the navigation device 40, it is considered that the route guidance function is often not used for a destination that frequently travels. In this case, since the navigation information is not transmitted from the navigation device 40, the power generation control device 20 cannot specify the planned travel route and cannot set the power generation voltage. For this reason, when the destination is set and the route search process is performed, the navigation device 40 provides a route guidance function when actually traveling by indicating how much fuel consumption can be reduced by a specific numerical value. Whether or not the use of a vehicle is necessary, it has the effect of encouraging the use of route guidance functions to improve fuel consumption.

Next, the power generation voltage command information transmission unit 22 transmits the power generation voltage set at that time to the generator 10 (step 104). After that, the power generation voltage setting unit 28
Determines whether it is necessary to change the generated voltage according to the generated voltage (step 105). For example, in the first urban driving, set the generated voltage to the lower limit of 12V,
If the content that the generated voltage is set to the upper limit value of 14 V is set in the next suburb traveling, a positive determination is made in the determination of step 105 while the vehicle is traveling in the city, and the step is performed. Returning to 104, generation voltage command information for instructing a constant generation voltage is transmitted. In addition, when power generation voltage command information needs to be sent only once at the time of power generation by the generator 10 at a constant power generation voltage, when the determination in step 105 is positive, step 105 is performed. The determination process may be repeated.

Further, in the above example, when the generated voltage is changed as in the case of shifting from urban driving to suburban driving, a negative determination is made in step 105. Next, the condition setting unit 28 determines whether or not the destination has been canceled or changed (step 106), whether or not the battery capacity is as planned (step 107), and whether or not a new traffic jam has occurred (step 108). ) Is determined.

When the destination is canceled, the information indicating that is sent, and when the destination is changed, the navigation device 40 sends the navigation information including the new planned route and its accompanying information. Because it will be asked
The generated voltage setting unit 28 can know that the destination has been canceled or changed. In this case, step 10
An affirmative determination is made in the determination of 5, and then the power generation voltage setting unit 28 determines whether or not the power generation voltage needs to be corrected (step 109). For example, when the destination is canceled and the vehicle is traveling in the city at that time, there is no guarantee that suburban driving or high-speed driving will be performed after this urban driving, so that the generation voltage setting unit 28 In consideration of traveling and the like, the discharge of the battery 30 allowed for traveling in the city is immediately stopped, and the power generation voltage required to restore the battery capacity to the fully charged state is set (step 110). After that, the process returns to step 105, and the operation of determining whether or not the generated voltage has been changed is repeated. Similarly, when the destination is changed, it is similarly determined in step 109 whether or not the generated voltage needs to be corrected. If the corrected voltage is required, in step 110, new traveling based on the changed destination is performed. The generated voltage is corrected to correspond to the planned route. If it is not necessary to correct the generated voltage, a negative determination is made in step 109, and step 11
Immediately return to the determination operation of step 105 without correcting the generated voltage at 0.

Further, whether or not the battery capacity is as planned is determined by obtaining the battery capacity based on the charging / discharging current of the battery 30 and then comparing it with the battery capacity corresponding to the generated voltage at that time. It For example, when the power generation voltage is set so that the battery 30 returns to the fully charged state at the time when the suburb traveling or high-speed traveling ends, and the battery capacity at the time when the urban traveling starts is discharged by a predetermined amount. Since the battery capacity is out of the expected value,
A negative determination is made in the determination of 07. In this case, since it is necessary to increase the amount of power generation corresponding to this urban driving, a positive determination is made in step 109 and the power generation voltage is corrected in step 110.

When a new traffic jam occurs, the traffic jam information regarding the traffic jam is received by the VICS information receiving section 50 in the navigation device 40, and the navigation information including the traffic jam information is sent from the navigation device 40. Therefore, the power generation voltage setting unit 28 can know that a new traffic jam has occurred. In this case, an affirmative determination is made in the determination of step 108, and the process proceeds to step 109. For example, when a traffic jam occurs in a suburb traveling section or a high-speed traveling section, it is necessary to change the power generation voltage set for traveling without a traffic congestion, and therefore a positive determination is made in the determination in step 109. At 110, the generated voltage is modified.

FIG. 8 is a diagram showing a specific example of the power generation voltage and the battery capacity set corresponding to the traveling pattern.
The “travel pattern” is the content of each section of the planned travel route determined by the travel content determination unit 25, and in the example shown in FIG. 8, the purpose is to go through the urban section, suburban section, urban section, high-speed section, urban section. It has reached the ground. The "running time zone" is a distinction between day and night determined based on the output of the clock 26, and it is assumed that the headlights are expected to be turned on at night during the second urban driving. The "power generation voltage" is the power generation voltage of the controlled generator 10, and is set between the lower limit value 12V and the upper limit value 14V. “Battery capacity” is the charge capacity of the battery 30 at that time detected by the integrated charge / discharge current included in the battery information.

In the first urban driving, discharging of the chargeable battery capacity is permitted in the next suburban driving.
In the example shown in FIG. 8, the power generation voltage setting unit 28 integrates the season, the traveling time zone, the temperature, etc., and outputs 20 A in the suburban traveling.
It is determined that H charging is possible. Therefore, in the city driving before that, the generated voltage is set to the lower limit value of 12 V so that the battery capacity is discharged to -20 AH. Battery capacity is -20 by the end of city driving
When it reaches AH, the generated voltage is set so that the battery capacity maintains -20 AH.

In the next suburb driving, the power generation voltage is set to the upper limit value 1 in order to recover the battery capacity reduced in the city driving.
It is set to 4V, which allows the battery capacity to reach the initial value (0
Return to AH). In the second urban driving, discharging of the battery capacity that can be received in the next high speed driving is allowed. However, an allowable discharge amount (for example, -30 AH) is set because the battery capacity is such that the starter cannot be started, which causes trouble in actual vehicle operation. Therefore, even if the generated voltage setting unit 28 determines that the battery can be charged at 40 AH during high-speed traveling by taking into consideration the season, traveling time zone, temperature, etc., the battery capacity is -30 AH during urban driving before that. The generated voltage is set to the lower limit value of 12 V so that the generated voltage is discharged until. Also, after the battery capacity reaches -30 AH, this -3
The generated voltage is set so as to maintain the battery capacity of 0 AH.

In the next high-speed running, the power generation voltage is set to the upper limit value of 14 V in order to recover the battery capacity reduced in the second urban running, and the battery capacity returns to the initial value (0AH). Moreover, after the battery capacity returns to the initial value, the power generation voltage that maintains this initial value is set.

In the third city driving, since there is no subsequent suburban driving or high-speed driving, the generated voltage is set so that the battery 30 is not discharged. Alternatively, as shown by the dotted line drawn with the symbol A in FIG. 8, the discharge in the third city driving is predicted and the battery is charged to the full charge, and is discharged to the target initial value in the third city driving, and then, The generated voltage is set so as to maintain the target initial value.

Thus, the power generation control device 2 of this embodiment
By performing the power generation control by 0, it is possible to suppress the power generation amount in the traveling state in which the fuel consumption efficiency is poor, and increase the power generation amount in the traveling state in which the fuel consumption rate is good, and to reduce the power generation amount in the entire traveling route. Fuel consumption can be reduced.

In particular, by using the navigation information acquired from the navigation device 40, the planned traveling route can be accurately specified. Further, since the navigation device 40 has become widespread these days, it is possible to obtain the navigation information necessary for specifying the planned travel route for a vehicle equipped with the navigation device 40 without adding a special configuration. You can

Since the electric load used varies greatly depending on the season, region, ambient temperature, running time zone, etc., by predicting this variation and setting the power generation voltage, it is possible to set the section other than the urban section. It is possible to accurately calculate the recoverable battery capacity at. In particular, it is possible to perform appropriate power generation control according to the actual situation by considering cancellation and change of traffic congestion information and destination, and consideration of the monitoring result of battery capacity.

Further, by transmitting and receiving various kinds of information between the power generation control device 20, the navigation device 40 and the power generator 10 by communication, restrictions on the arrangement between the respective devices are reduced and the degree of freedom in design is improved. be able to. The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the gist of the present invention. For example, in the above-described embodiment, the planned traveling route is classified into three types of traveling contents: urban area, suburbs, and high speed, but the first section (for example, urban area) that allows the discharge of the battery 30 and the battery capacity are restored. You may make it divide into the other 2nd area (suburbs and high speed).

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of a power generation system including a power generation control device according to an embodiment.

FIG. 2 is a diagram showing a specific configuration of a generator.

FIG. 3 is a diagram showing a schematic configuration showing a configuration of a power generation control device.

FIG. 4 is a diagram showing a schematic configuration of a navigation device.

FIG. 5 is a diagram showing a relationship between a power generation voltage of a generator and a charging / discharging current of a battery.

FIG. 6 is a diagram showing a relationship between a battery capacity and a charging current when a battery is charged with a constant voltage.

FIG. 7 is a flowchart showing an operation procedure of the power generation control device.

FIG. 8 is a diagram showing a specific example of a power generation voltage and a battery capacity set corresponding to a traveling pattern.

[Explanation of symbols]

10 generator 20 Power generation control device 22 Generation voltage command information transmitter 23 Battery Information Receiver 24 Navigation information receiver 25 Running content determination section 26 clock 28 Generation voltage setting section 29 Effect calculator 30 battery 31 Display 40 navigation device

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Claims (10)

[Claims] 1. A power generation control device for controlling the power generation voltage of a vehicle generator based on the contents of a planned traveling route of the vehicle. 2. The power generation control device according to claim 1, wherein the power generation voltage of the vehicle generator is controlled in consideration of the charge / discharge balance of the on-vehicle battery calculated based on the planned travel route. . 3. The navigation information receiving means for receiving navigation information sent from a navigation device according to claim 1, and a power generation voltage setting for setting a power generation voltage of the vehicle generator based on the navigation information. A power generation control device comprising: 4. The first section corresponding to urban travel included in the planned travel route and the second section other than the first section, based on the navigation information received by the navigation information receiving unit. Further comprising: a traveling content determination unit that distinguishes at least the power generation voltage setting unit, in consideration of the chargeable amount of the vehicle-mounted battery in the second section, the generation voltage setting unit of the vehicle generator in the first section. A power generation control device that sets the power generation voltage for suppressing charging. 5. The power generation voltage condition setting means according to claim 3 or 4,
A power generation control device characterized by predicting an electric load to be used by using at least a part of a traveling time zone and setting the power generation voltage in consideration of the prediction result. 6. The power generation voltage setting means according to claim 3 or 4, wherein the power generation voltage setting means changes the power generation voltage when congestion information regarding the planned traveling route is sent from the navigation device. Power generation control device. 7. The generated voltage setting means according to claim 3 or 4, wherein the generated voltage setting means changes the generated voltage when a destination corresponding to the planned travel route is canceled or changed. Power generation control device. 8. The generator voltage setting means according to claim 3 or 4, wherein the battery capacity of the vehicle-mounted battery is monitored, and the generator voltage is changed when the battery capacity deviates from a predetermined value. A power generation control device characterized by: 9. The power generation control device according to claim 3, wherein various information is transmitted and received between the navigation device and the vehicle generator by communication. 10. The fuel consumption improvement effect that appears when the power generation operation by the vehicle generator is performed according to the power generation voltage set by the power generation voltage setting means according to claim 3 or 4. A power generation control device further comprising an effect calculation / display means for displaying.